Engineering Manual Air Source Heat Pump VRF System

Engineering Manual Air Source Heat Pump VRF System
Engineering Manual
Air Source Heat Pump VRF
System Condensing Unit
Variable Refrigerant Flow
Air-Cooled
3.0 – 4.4 Tons
PROPRIETARY DATA NOTICE
This document, as well as all reports, illustrations, data, information, and
other materials is the property of LG Electronics U.S.A., Inc.
EM_MultiVMini_5_­15
For continual product development, LG reserves the right to change specifications without notice.
©LG Electronics U.S.A., Inc.
About LG Electronics, Inc.
LG Electronics, Inc. is a global leader and technology innovator in
consumer electronics, mobile communications, and home
appliances. LG Electronics comprises four business units—Home
Entertainment, Mobile Communications, Home
Appliance, and Air Conditioning and Energy Solutions. LG is one
of the world’s leading producers of flat panel televisions, audio
and video products, mobile handsets, compressors, air
conditioners, and washing machines. LG’s commercial air
conditioning business unit was established in 1968 and has built
its lineup of residential and commercial products to include VRF,
Multi-Zone systems, Duct Free Split Systems, Packaged Terminal
Air Conditioners (PTACs), and room air conditioners. In 2011, the
air conditioning and energy solutions business unit grew to include
LED lighting and solar products. For more information visit
www.lg.com.
Quality Commitment
LG is committed to the success of every Multi V project by
providing the best industry technical support during project
engineering, installation, and commissioning. LG offers a variety
of classes designed for engineers, architects, installers, and
servicers to ensure that every Multi V installation is completed
successfully. Classes are conducted at LG’s training centers and
in field locations at various times throughout the year and upon
special request.
Variable Refrigerant Flow (VRF) Technology
In the early 1980s, VRF technology was introduced to the world as
an alternative method of cooling and heating in commercial
structures designed to minimize energy consumption. VRF
systems have become the system of choice for designers
internationally because these systems offer better comfort at
substantially lower operating costs when compared to traditional
HVAC systems. Older systems are being replaced with newer
more efficient systems making VRF a viable option. Today, VRF
is gaining popularity in the United States. LG air-source systems
offer the opportunity to eliminate ductwork in the same configuration. The systems offer zoning without the need for zone damper
systems. The advanced controls provide exceptional building
dehumidification and temperature control and can rapidly adapt
system operating parameters to the ever changing building load.
TABLE OF CONTENTS
INTRODUCTION.........................................................................................................................................................................................7
ArchitecturalAppeal..............................................................................................................................................................................8
EngineersAdvantage............................................................................................................................................................................9
PRODUCT DATA.......................................................................................................................................................................................11
Product Features and Benefits..............................................................................................................................................................12
Unit Nomenclature...............................................................................................................................................................................13
General Data......................................................................................................................................................................................14
PERFORMANCE DATA.............................................................................................................................................................................25
Cooling Capacity............................................................................................................................................................................26
Heating Capacity.................................................................................................................................................................................35
Unit Refrigerant Flow Diagrams..........................................................................................................................................................44
Outdoor Wiring Diagram......................................................................................................................................................................46
SYSTEM ENGINEERING..........................................................................................................................................................................47
Building Ventilation..............................................................................................................................................................................48
Equipment Selection Procedure............................................................................................................................................................51
Placement Considerations...................................................................................................................................................................57
Clearance Requirements.....................................................................................................................................................................59
LATS Multi V Pipe System Design Tool.................................................................................................................................................61
Pipe Design Parameters......................................................................................................................................................................62
Pipe Layout Procedure........................................................................................................................................................................63
Piping Design Guide............................................................................................................................................................................66
Jobsite Connections............................................................................................................................................................................77
Mini Refrigerant Charge.......................................................................................................................................................................79
CUT SHEETS............................................................................................................................................................................................81
Dimensional Data and Weights.............................................................................................................................................................82
Pipe and Electrical Connections............................................................................................................................................................83
Y-Branch Kits......................................................................................................................................................................................84
Header Kits.........................................................................................................................................................................................85
U.S. DESIGN STANDARDS......................................................................................................................................................................87
ASHRAE Standards Summary..............................................................................................................................................................88
ASHRAE Standard 15-2004 andASHRAE Standard 34-2007.................................................................................................................88
ASHRAE Standard 62.1-2010..............................................................................................................................................................90
Building Sustainability..........................................................................................................................................................................92
USGBC—LEED Green Building Rating System......................................................................................................................................93
SPECIFICATIONS...................................................................................................................................................................................95
Mechanical Specifications..................................................................................................................................................................96
ACRONYMS......................................................................................................................................................................................98
INTRODUCTION
"Architectural Appeal" on page 8
"Engineers Advantage" on page 9
ARCHITECTURAL APPEAL
Convergence of Technological Innovation with Flexibility and Style
Benefits of the
Multi V Mini
Maximum individual occupant control
•
Longest refrigerant piping lengths
•
Highest elevation differences
•
Maximum flexibility
•
Quiet and comfortable environment
•
Reduced or eliminated ductwork
Introduction
•
Multi V Mini
Multi V Mini is among the industry’s best
with vertical rise and piping lengths, so
choosing the LG Multi V Mini variable
refrigerant flow system provides the
system designer with the most freedom
and flexibility while engineering the
refrigerant pipe system. Multi V Mini is
a two-pipe heat pump system available
in nominal capacities of 3.0, 4.0, and 4.4
tons. It is best suited for applications with
zones that require heating or cooling, such
as residences and small office buildings.
The Multi V Mini allows the designer to
accommodate up to 9 thermal zones, each
controlled from a separate
controller. Mini outdoor units are available
in 208–230V/60Hz/1Ph.
Smaller Chases and Plenums
The LG Multi V system uses refrigerant
piping to move heat resulting in smaller
space requirements compared to water
piping or air ducts. This helps reduce
the overall construction and material cost
of your building and gives back leasable
space. Flexible and logical placement of
system components, shorter pipe lengths,
and fewer joints lowers installation costs.
Adaptable and Flexible
Multi V outdoor units can be adapted to
a wide range of building types and sizes,
such as schools, hotels, hospitals, offices,
and residences. The light weight and
small footprint allows the system
components to be placed in the building
without expensive cranes, easily
fitting into most service elevators and set
in place with minimal requirements for
structural reinforcements. The system’s
modular design means Multi V can be
commissioned in stages so tenants can
move in as each floor or even each room
is completed.
Multi V technology allows you to pipe
farther by reaching areas of the
building that would require the
installation of a second system when
using traditional direct-expansion cooling
and heating equipment. Multi V
provides the designer with
uncompromised pipe system engineering
flexibility—the longest pipe runs and the
largest elevation differences. Whether
your building is a high-rise condominium,
a hotel, a sprawling school, an office
complex or high-end residence, the Multi
V family of products is best suited to reach
the farthest corners and elevations of the
building from a single outdoor
unit location.
8
|
INTRODUCTION
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
ENGINEERS ADVANTAGE
System Design and Analysis Tools
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
Intuitive Design
The LATS (LG Air Conditioning Technical Solution) Multi V
design and layout software provides an intuitive, quick, and
simple method to design a Multi V Mini refrigerant pipe system.
LATS Multi V checks piping lengths and elevations, and it
assists with the sizing of indoor and outdoor units by
calculating component capacity based on design conditions.
LATS Multi V is the industry’s only software that can import
AutoCAD™ drawings and lay out the Multi V system to scale.
When the designer finishes the AutoCAD system layout, all of
the piping lengths will be calculated, and a drawing file with the
Multi V system will be available for export and integration into
the building drawing set.
Energy Modeling
LG stands behind efficiency and performance. You will find Multi V in the EnergyPro building energy simulation software
from EnergySoft®. EnergyPro is approved by the California Energy Commission to accurately model and provide
necessary documentation to comply with the rigourous California Title 24 Standards, ASHRAE 90.1 compliance, and to
calculate the number of LEED Energy and Atmosphere Credit 1 (EA-1)—Building Energy Efficiency credits earned by the
design team. The software accurately models energy consumption and utility costs based on building design, orientation,
location, and other design conditions.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG" is a registered trademark of LG Corp.
INTRODUCTION
|
9
PRODUCT DATA
"Product Features and Benefits" on page 12
"Unit Nomenclature" on page 13
"General Data" on page 14
PRODUCT FEATURES AND BENEFITS
System Controls
Heat Transfer Efficiency
Refrigerant Distribution Balancing
Fin Design
Buildings with hydronic heating systems can
experience low delta-T syndrome—a condition
that occurs when the water distribution system is
not properly balanced. Units located at the ends
of the hot water piping system need boiler water
while units located closer to the boiler use too
much water. Low delta-T syndrome also occurs
in VRF systems. To prevent this condition in Multi
V installations, LG provides control algorithms
that automatically monitor and balance the distribution of refrigerant to indoor units during high
demand periods. This allows each unit to receive
an appropriate amount of refrigerant.
Product Data
Low Noise Levels
LG customers often ask if the outdoor unit is
running after commissioning is complete. When
Multi V outdoor units operate fully loaded, they
have one of the quietest noise levels in the
industry. Noise is almost undetectable during offpeak operation. To promote a quiet, comfortable
environment, the LG Multi V indoor units operate
at sound levels as low as 23dB(A) and outdoor
units as low as 50dB(A) at full load.
All rotating components are soft-started by the
controller using digitally-controlled inverters,
which reduces undesirable noise caused by fans
and compressors cycling.
Comfort Control at Its Best
Tight temperature control through precise load
matching maximizes the time that the indoor units
remove moisture. This ensures maximum comfort
and delivers the industry’s best indoor humidity
levels.
Precision Load Matching
Unlike traditional air conditioning control systems,
which use thermostatic controls to maintain room
temperatures, LG Multi V controls continuously
vary the indoor unit fan speed and refrigerant flow
indirectly providing lower and more consistent humidity levels in the conditioned space. The longer
the indoor coil temperature is below the dew-point
of the room in conjunction with air movement
across the coil, the space humidity level will vary
little compared to technologies that cycle fans
and compressors multiple times per hour.
The outdoor unit responds by varying the compressor speed and outdoor fan motors as needed
to maintain system operating pressure. As a
result, the Multi V system delivers precise space
temperature control.
12
|
PRODUCT DATA
the compressor.
2. An oil separator located on the discharge side
All Multi V outdoor units are provided with large
surface coils made of copper tubes with aluminum
fins designed to maximize unit operating efficiency over a wide range of ambient conditions.
of the compressor(s) separates the majority
of oil mixed with the refrigerant gas stream
during compression. Oil is returned to the
compressor through a gravity drain.
3. Oil return algorithms flush the oil from the
distribution system back to the compressor.
GoldFin™ Coating
Inverter Driven
Standard from the factory, every LG Multi V
outdoor coil fin surface is coated with LG’s exclusive GoldFin™ anti-corrosive protective coating
designed to prevent natural surface corrosion of
the aluminum fins. This maintains heat transfer
properties of the coil for an extended time.
A hydrophilic coating is applied to the outdoor unit
coil fin surface over the GoldFin coating. This
coating enhances the development of heavier
water droplets gathering on the fin surface. As a
result, the droplets roll off the fin surfaces delaying the point when frost forms on the coil surface
during heating operations. This coating also
makes it possible to easily clean the outdoor unit
coil using mild soap.
The R410A rotary compressor is optimized to
maximize compressor efficiency, which reduces
power consumption and monthly utility bills. The
latest inverter technology allows the LG Multi
V to vary the compressor motor shaft speed
to deliver an appropriate amount of cooling to
all indoor units. Precise refrigerant volume
delivery translates into long periods of time with
coil surface temperatures below dew point and
minimizes compressor and fan component run
time. Occupants remain comfortable while utility
costs are reduced.
Simplified Installation
Cooling and heating systems that use the LG
Multi V simplify and reduce the mechanical and
control system design time. The designer no
longer has to be concerned with interconnecting
chilled and condenser water piping, air distribution duct systems, matching and selecting chillers, towers, pumps, coils, fans, air handlers, or
variable air volume (VAV) boxes.
System integration with existing building management systems has never been easier. Since all
of the Multi V system components are engineered
and provided by LG, the system components
and controls come pre-engineered and do not
need any custom programming from third-party
contractors.
Advanced Compressor
Technology
Oil Management
Oil migration is no longer a concern when choosing Multi V. A three-stage oil management system
ensures a safe level of oil in the compressor
sump. An oil injection mechanism provides a
consistent film of oil on moving parts, even at low
speeds, which enables LG’s inverter compressor
operation down to 25 Hz.
1. The compressor discharge is specially de-
signed to minimize the amount of oil leaving
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
UNIT NOMENCLATURE
Outdoor and Indoor Units
ARU
Outdoor
N
053
G
S
2
Family
ARU = Multi V Outdoor Unit
(Refrigerant R410A)
Type
N = Inverter Heat Pump
Nominal Capacity*
Nominal cooling capacity in Btu/h
036 = 38,000
047 = 48,000
053 = 53,000
Electrical Ratings
G = 208–230V/60Hz/1Ph
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
Airflow Configuration
S = Side Discharge
Generation
2 = Second
ARN
Indoor
U
07
3
TN
C
4
Family
ARN = Multi V Indoor Unit
(Refrigerant R410A)
Type
U = DC Inverter Heat Pump
Nominal Capacity
05 = 5,000 Btu/h
07 = 7,000 Btu/h
09 = 9,000 Btu/h
12 = 12,000 Btu/h
15 = 15,000 Btu/h
18
24
28
30
36
=
=
=
=
=
18,000 Btu/h
24,000 Btu/h
28,000 Btu/h
30,000 Btu/h
36,000 Btu/h
42 =
48 =
54 =
76 =
96 =
42,000 Btu/h
48,000 Btu/h
54,000 Btu/h
76,000 Btu/h
96,000 Btu/h
Electrical Ratings
3 = 208–230V/60Hz/1Ph
Model
B3 = Ducted (low static - bottom return)
B4 = Ducted (low static - bottom return)
B8 = Ducted (high static)
BG = Ducted (high static)
BR = Ducted (high static)
CE = Floor Standing (small frame)
CF = Floor Standing (large frame)
L1 = Ducted (low static)
L2 = Ducted (low static)
L3 = Ducted (low static)
NJ = Vertical/Horizontal Air Handling Unit
NK = Vertical/Horizontal Air Handling Unit
SB = Wall Mounted
SC = Wall Mounted
TT = 1-Way Ceiling Cassette
TU = 1-Way Ceiling Cassette
TL = 2-Way Ceiling Cassette
TM = 4-Way Ceiling Cassette
TN = 4-Way Ceiling Cassette
TP = 4-Way Ceiling Cassette
TQ = 4-Way Ceiling Cassette
TR = 4-Way Ceiling Cassette
VE = Convertible Surface Mounted
VJ = Ceiling Suspended
Feature
A, C, L, R = Standard*
G = Low Static
U = Uncased
*Plasma filter kit accessories are available separately. Always follow all local, state, and national building codes with the use of this or any
product.
Generation
2 = Second
4 = Fourth
A = Second, Revision A
Note:
* Nominal capacity is obtained when applied with non-ducted indoor unit.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PRODUCT DATA
|
13
GENERAL DATA
Outdoor Units
Table 1a: General Data—Outdoor Units
3.0 Ton
ARUN036GS2
4.0 Ton
ARUN047GS2
4.4 Ton
ARUN053GS2
Nominal Cooling Capacity (Btu/h)
39,500
50,000
55,500
Rated Cooling Capacity (Btu/h)
38,000
48,000
53,000
Cooling Mode Performance
3
Heating Mode Performance
Nominal Heating Capacity (Btu/h)
44,000
56,000
61,500
Rated Heating Capacity (Btu/h)3
42,000
53,500
59,000
Cooling (°F DB)
23–118
23–118
23–118
Heating (°F)
(-4)–60
(-4)–60
(-4)–60
1
1
1
PVE / FVC68D
PVE / FVC68D
PVE / FVC68D
3600
3600
3600
R410A
R410A
R410A
Operating Range
Compressor
Inverter Rotary Quantity
Oil / Type
Full Load Operating RPM
Unit Data
Product Data
Refrigerant Type
EEV / Indoor Unit
EEV / Indoor Unit
EEV / Indoor Unit
Maximum Number Outdoor Units / System1
Refrigerant Control / Location
1
1
1
Maximum Number Indoor Units / System
6
8
9
1
1
1
1
Minimum Number Indoor Units / System1
Qty Refrigeration Circuits
Sound Pressure Cooling / Heating dB(A)5
1
1
1
50 / 52
51 / 53
52 / 54
Net Unit Weight (lbs)
234
234
234
Shipping Weight (lbs)
258
258
258
2 / 18
2 / 18
2 / 18
Propeller (BLDC)
Propeller (BLDC)
Propeller (BLDC)
Communication Cable (Qty # Wires / Gauge)2
Fan
Type
Qty / Motor HP
2 / 0.166
2 / 0.166
2 / 0.166
Qty / Diameter (in)
2 / 20.75
2 / 20.75
2 / 20.75
Brushless Digitally-Controlled / Direct
Brushless Digitally-Controlled / Direct
Brushless Digitally-Controlled / Direct
80–950
80–950
80–950
Maximum Air Volume (CFM)
3,885
3,885
3,885
Maximum External Static Pressure (in-wg)
0.16
0.16
0.16
Horizontal—Back to Front
Horizontal—Back to Front
Motor / Drive
Operating Range (RPM)
Airflow Direction
Horizontal—Back to Front
1. The System Combination Ratio must be between 50–130%. See page 55 for more information.
2. All communication cables must comply with applicable local codes.
3. Rated using non-ducted indoor units. Rated 0 ft. above sea level with 25 ft. of refrigerant line per
indoor unit and a 0 ft. level difference between outdoor and indoor units. All capacities are net with
a Combination Ratio between 95–105%. Certified under the AHRI Unitary Small Heat Pump equipment certification program and tested per AHRI Standard 210/240 conditions and in accordance with
DOE test procedures. Nominal Cooling capacity rating obtained with air entering the indoor coil at
80°F dry bulb (DB) and 67°F wet bulb (WB) and outdoor ambient conditions of 95°F dry bulb (DB)
and 75°F wet bulb (WB). Nominal Heating capacity rating obtained with air entering the indoor unit
at 70°F dry bulb (DB) and 59°F wet bulb (WB) and outdoor ambient conditions of 47°F dry bulb
(DB) and 43°F wet bulb (WB).
14
|
PRODUCT DATA
4. Unit is capable of operating outside the operating range temperature limitations. See "Select the
Outdoor Unit" on page 52.
5. Sound pressure levels are tested in an anechoic chamber under ISO Standard 1996.
6. Power wiring cable is field provided and must comply with the applicable local and national codes.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL DATA
Outdoor Units
Table 1b: General Data—Outdoor Units (continued from Table 1a)
3.0 Ton
ARUN036GS2
4.0 Ton
ARUN047GS2
4.4 Ton
ARUN053GS2
Copper Tube / Aluminum Fin
Copper Tube / Aluminum Fin
Copper Tube / Aluminum Fin
GoldFin™ / Hydrophilic
GoldFin™ / Hydrophilic
Gold Fin™ / Hydrophilic
Face Area (ft )
630.7
630.7
630.7
Rows / Fins per inch
2 / 17
2 / 17
2 / 17
Liquid Line Connection (in, OD)
3/8 Braze
3/8 Braze
3/8 Braze
Vapor Line Connection (in, OD)
5/8 Braze
5/8 Braze
3/4 Braze
6.6
6.6
6.6
Heat Exchanger
Material
Fin Coating
2
Piping
Factory Charge—lbs of R410A
Refer to "Pipe Design Parameters" on page 62
and "Piping Design Guide" on page 66 for correct line sizing. Designer must verify refrigerant
piping design configuration using LATS Multi V
software.
The factory’s refrigerant charge is sufficient when
line set length does not exceed 25 ft.
Estimated charge per linear foot. Actual
refrigerant charge varies and can be calculated
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
Factory Refrigerant Charge
using LG’s LATS computerized refrigerant piping
software or manually using the worksheet on
page 80. System must be charged using a
refrigerant charging scale. Superheat method
will not work.
Table 2: Electrical Characteristics—Outdoor Unit 60 Cycle Compressor and Fan Motors
Compressor Motor
Nom.
Tons
Unit Model No.
Unit Operating
Voltage Range
MCA MOP
Fan Motor(s)
Amps
No.
Volts
Phase
RLA(ea.)
Amps
No.
Volts
Phase
FLA(ea.)
kW
3.0
ARUN036GS2
187–253
29.0
50
1
208–230
1
21.5
2
208–230
1
1
0.35
4.0
ARUN047GS2
187–253
33.0
55
1
208–230
1
24.8
2
208–230
1
1
0.35
4.4
ARUN053GS2
187–253
34.0
60
1
208–230
1
25.9
2
208–230
1
1
0.35
MCA = Minimum Circuit Ampacity
Voltage tolerance is ±10%
Maximum allowable voltage unbalance is 2%
HACR type circuit breaker per NEC
MOP (Maximum Overcurrent Protection) is
calculated as follows:
(Largest motor FLA x 2.25) + (Sum of other motor
FLA) rounded down to the nearest standard fuse size
Acoustic Data
Table 3: Outdoor Unit Sound Pressure Level
Model
Cooling Operation dB(A)
Heating Operation dB(A)
Peak
Off-Peak
Peak
Off-Peak
ARUN036GS2
50
40–46
52
41–47
ARUN047GS2
51
41–47
53
42–48
ARUN053GS2
52
42–48
54
43–49
Sound pressure levels are tested in an anechoic
chamber under ISO Standard 1996.
Measurements are taken with no attenuation
and units operating at full load nominal operating
condition.
Measurements are taken 4.9 ft. above the
finished floor and a distance of 3.3 ft. from the
face of the fan discharge.
Sound Power Levels are measured in db(A) with
a tolerance of ± 3.
Off-Peak Operation: Logic takes advantage of
lower outdoor ambient temperatures and limits
the outdoor unit fan speed during off peak operation to lower the unit sound power level.
Actual sound levels depend on room conditions
and natural attenuation.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PRODUCT DATA
|
15
GENERAL DATA
Acoustical Data—Outdoor Units
Figure 3: ARUN053GS2 (Cooling)
80
80
70
70
70
NC-55
50
NC-50
NC-45
40
NC-40
NC-35
30
NC-30
10
NC-60
63
NC-50
250
500
100 0 200 0 400 0
Octave Band Center Frequency (Hz)
NC-45
40
NC-40
NC-35
30
NC-30
NC-15
8000
10
NC-65
NC-25
20
NC-20
125
NC-55
50
NC-25
Approximate
Hearing
Threshold
Approximate
Hearing
Threshold
63
60
NC-60
NC-55
50
NC-50
NC-45
40
NC-40
NC-30
250
500
100 0
200 0
400 0
Approximate
Hearing
Threshold
NC-15
8000
10
Figure 5: ARUN047GS2 (Heating)
70
70
70
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
30
NC-30
20
10
NC-25
Approximate
Hearing
Threshold
63
250
500
100 0 200 0 400 0
Octave Band Center Frequency (Hz)
NC-15
8000
NC-60
NC-55
50
NC-50
NC-45
40
NC-40
NC-35
30
NC-30
20
NC-20
125
NC-65
60
10
NC-25
Approximate
Hearing
Threshold
63
Octave Band Sound Pressure Level (dB re 20µPa )
80
40
NC-15
63
250
500
100 0 200 0 400 0
O c ta ve B a nd C e nte r F re que nc y ( H z )
|
PRODUCT DATA
500
1000
2000
4000
8000
NC-65
NC-60
NC-15
8000
NC-55
50
NC-50
NC-45
40
NC-40
NC-35
30
NC-30
NC-25
20
Approximate
Hearing
Threshold
NC-20
125
250
60
NC-20
NC-15
10
63
All data is measured in accordance with Industry Standard ISO 1996.
Measurements are taken 4.9 ft. above the finished floor and a distance of 3.3 ft. from the face of the fan discharge with no attenuation.
16
125
Figure 6: ARUN053GS2 Heating
80
50
NC-20
O c ta ve B a nd C e nte r F re que nc y ( H z )
80
60
NC-25
20
NC-20
125
NC-35
30
O c ta ve B a nd C e nte r F re que nc y ( H z )
Figure 4: ARUN036GS2 (Heating)
Octave Band Sound Pressure Level (dB re 20µPa )
Octave Band Sound Pressure Level (dB re 20µPa )
NC-60
NC-65
60
Octave Band Sound Pressure Level (dB re 20µPa )
NC-65
60
20
Product Data
Figure 2: ARUN047GS2 (Cooling)
80
Octave Band Sound Pressure Level (dB re 20µPa )
Octave Band Sound Pressure Level (dB re 20µPa )
Figure 1: ARUN036GS2 (Cooling)
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
125
250
500
1000
2000
4000
O c ta ve B a nd C e nte r F re que nc y ( H z )
8000
GENERAL DATA
Indoor Units
Table 4a: Summary Data—Wall and Ceiling Flush Mounted Indoor Units
Unit/Type
1
Wall Mounted–ART COOLTM
Mirror
Wall Mounted–Standard
053 SBR4
073 SBR4
093 SBR4
123 SBR4
153 SBR4
183 SCR4
243 SCR4
053 SBL4
073 SBL4
093 SBL4
123 SBL4
153 SBL4
183 SCL4
243 SCL4
073 TUC4
093 TUC4
123 TUC4
183 TTC4
Ceiling Cassette–Two Way
243 TTC4
183 TLC4
243 TLC4
Ceiling Cassette–Four Way
(2' x 2')
Ceiling Cassette–Four Way
(3' x 3')
053 TRC4
073 TRC4
093 TRC4
123 TRC4
153 TQC4
183 TQC4
243 TPC4
283 TPC4
073 TNA4
093 TNA4
123 TNA4
153 TNA4
183 TNA4
243 TNA4
363 TNC4
243 TMA4
283 TMA4
363 TMA4
423 TMC4
483 TMC4
2
3
Cooling3 Heating3
35-1/4 x 8-1/8 x 11-7/16
40-9/16 x 9-11/16 x 12-13/16
35-1/4 x 8-15/16 x 11-7/16
40-5/16 x 9-7/8 x 12-13/16
Body: 33-7/8 x 17-3/4 x 6-11/16
Panel: 43-5/16 x 19-3/4 x 1-3/8
Body: 46-1/2 x 17-3/4 x 6-7/8
Panel: 55-15/16 x 19-3/4 x 1-3/8
Body: 32-11/16 x 21-5/8 x 8-7/8
Panel: 41-5/16 x 25-3/16 x 1-5/8
Body: 22-7/16 x 22-7/16 x 8-7/16
Panel: 27-9/16 x 27-9/16 x 7/8
Body: 22-7/16 x 22-7/16 x 10-3/32
Panel: 27-9/16 x 27-9/16 x 7/8
Body: 33-1/16 x 33-1/16 x 8
Panel: 37-3/8 x 37-3/8 x 1-7/16
Body: 33-1/16 x 33-1/16 x 9-11/16
Panel: 37-3/8 x 37-3/8 x 1-7/16
Body: 33-1/16 x 33-1/16 x 11-5/16
Panel: 37-3/8 x 37-3/8 x 1-7/16
All indoor units require 208–230V/60Hz/1Ph and an AWG18-2 communication cable.
Model number shows nominal capacity and frame size designator.
Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and
67ºF wet bulb (WB) and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB).
1
Nominal Capacity
Btu/h
Dimensions
(W x D x H)
(inches)
Air Flow Rate
(CFM)
(H/M/L4)
5,500
7,500
9,600
12,300
15,400
19,100
24,200
5,500
7,500
9,600
12,300
15,400
19,100
24,200
7,500
6,100
8,500
10,900
13,600
17,100
21,500
27,300
6,100
8,500
10,900
13,600
17,100
21,500
27,300
8,500
230/212/194
247/230/194
290/247/194
336/290/230
371/318/247
441/424/399
494/449/406
1,120/1,080/1,050
1,190/1,120/1,050
1,260/1,190/1,050
1,420/1,260/1,120
1,550/1,350/1,190
1,120/1,050/980
1,280/1,140/1,000
290/258/226
9,600
10,900
325/304/290
12,300
13,600
353/325/290
19,100
21,500
470/427/385
24,200
24,200
515/470/406
19,100
21,500
459/424/353
24,200
27,300
601/530/459
5,500
7,500
9,600
12,300
15,400
19,100
24,200
28,000
7,500
9,600
12,300
15,400
19,100
24,200
36,200
24,200
28,000
36,200
42,000
48,100
6,100
8,500
10,900
13,600
17,100
21,500
27,300
31,500
8,500
10,900
13,600
17,100
21,500
27,300
40,600
27,300
31,500
40,600
43,800
51,200
265/247/212
265/247/212
283/265/251
307/283/247
388/353/328
396/388/353
600/530/459
671/565/494
459/424/388
477/424/388
494/459/424
530/459/424
565/530/424
742/671/600
883/777/706
777/706/635
812/741/635
918/812/706
1,059/918/812
1,130/953/883
Pipe
Weight Connections
(lbs.) (inches, O.D.)
(Liquid, Vapor)
24
1/4, 1/2
34
3/8, 5/8
22
1/4, 1/2
31
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
Ceiling Cassette–One Way
ARNU*****
2
3/8, 5/8
Body: 33
Panel: 10
1/4, 1/2
Body: 42
Panel: 13
3/8, 5/8
Body: 49
Panel: 11
Body: 29
Panel: 7
Body: 32
Panel: 7
Body: 35
Panel: 7
Body: 48
Panel: 13
Body: 54
Panel: 13
1/4, 1/2
3/8, 5/8
1/4, 1/2
3/8, 5/8
Body: 59
Panel: 13
Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60°
F wet bulb (WB) and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
4
H/M/L = High/Medium/Low
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PRODUCT DATA
|
17
GENERAL DATA
Indoor Units
Table 4b: Summary Data—Ducted Indoor Units
Unit/Type
1
Ducted High Static
Product Data
Ducted Low Static
Ducted Low Static Built In
Vertical/Horizontal Air
Handling Unit
ARNU*****
2
Dimensions
(W x D x H)
(inches)
7,500
9,600
12,300
15,400
19,100
24,200
28,000
36,200
42,000
48,100
54,000
76,400
95,900
7,500
9,600
12,300
15,400
19,100
24,000
7,500
9,600
12,300
15,400
19,100
24,200
12,000
8,500
10,900
13,600
17,100
21,500
27,300
31,500
40,600
43,800
51,200
61,400
86,000
107,500
8,500
10,900
13,600
17,100
21,500
27,300
8,500
10,900
13,600
17,100
21,500
27,300
13,500
441/406/332
452/406/332
477/427/332
487/417/293
537/487/417
671/537/487
915/851/770
1,141/1,024/894
1,218/1,141/1,084
1,568/1,395/1,183
1,819/1,678/1,395
2,050/1,766/1,766
2,542/2,260/2,260
270/230/200
320/250/200
360/310/250
450/360/310
530/450/360
710/570/430
283/229/194
318/247/212
353/283/229
388/353/283
494/424/353
600/530/353
530/480/380
183 NJA4
18,000
20,000
580/530/480
24,000
30,000
36,000
42,000
48,000
54,000
27,000
34,000
40,000
46,000
54,000
60,000
710/640/480
880/800/630
990/880/800
1,250/1,100/1,000
1,400/1,260/1,000
1,475/1,400/1,260
18 x 21-1/4 x 48-11/16
25 x 21-1/4 x 55-3/16
All indoor units require 208–230V/60Hz/1Ph and an AWG18-2 communication cable.
Model number shows nominal capacity and frame size designator.
Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and
67ºF wet bulb (WB) and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB).
2
3
18
|
PRODUCT DATA
Cooling3 Heating3
Air Flow Rate
(CFM)
(H/M/L4)
073 BGA4
093 BGA4
123 BGA4
153 BGA4
183 BGA4 46-1/2 x 17-3/4 x 11-3/4
243 BGA4
283 BGA4
363 BGA4
423 BGA4
483 BRA4
48-7/16 x 23-3/8 x 15
543 BRA4
763 B8A4
61-1/2 x 27-1/8 x 18-1/8
963 B8A4
073 L1G4
27-9/16 x 27-9/16 x 7-1/2
093 L1G4
123 L2G4
153 L2G4 35-7/16 x 27-9/16 x 7-1/2
183 L2G4
243 L3G4 43-5/16 x 27-9/16 x 7-1/2
073 B3G4
093 B3G4
32-5/8 x 22-5/8 x 7-1/2
123 B3G4
153 B3G4
183 B4G4
43-5/16 x 22-5/8 x 7-1/2
243 B4G4
123 NJA4
243 NJA4
303 NJA4
363 NJA4
423 NKA4
483 NKA4
543 NKA4
1
Nominal Capacity
Btu/h
Pipe
Max.
Weight Connections
ESP
(lbs.) (inches, O.D.) (inches)
(Liquid, Vapor)
84
0.62
3/8, 5/8
112
192
0.78
3/8, 3/4
3/8, 7/8
0.98
39
1/4, 1/2
51
60
46
57
0.19
3/8. 5/8
1/4, 1/2
0.15
3/8, 5/8
1/4, 1/2
117
121
1.0
3/8, 5/8
165
Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60°
F wet bulb (WB) and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
4
H/M/L = High/Medium/Low
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL DATA
Indoor Units
Table 5: Summary Data—Suspended and Surface Mounted Indoor Units
Unit/Type
1
Ceiling Suspended
Dimensions
(W x D x H)
(inches)
ARNU****
2
183VJA2
Nominal Capacity
Btu/h
Cooling3 Heating3
19,100
21,500
Air Flow
Rate
(CFM)
(H/M/L4)
565/495/424
37-7/16 x 8-11/16 x 25-5/8
Convertible Surface Mounted
24,200
27,300
636/565/495
093VEA2
9,600
10,900
268/243/219
12,300
13,600
325/268/244
073 CEA4
7,500
8,500
300/265/229
093 CEA4
9,600
10,900
335/300/265
12,300
13,600
371/335/300
15,400
17,100
406/353/335
19,100
21,500
565/494/424
24,200
27,300
635/565/494
7,500
8,500
300/265/229
9,600
10,900
335/300/265
12,300
13,600
371/335/300
15,400
17,100
406/353/335
19,100
21,500
565/494/424
24,200
27,300
635/565/494
153 CEA4
183 CFA4
243 CFA4
Floor Standing – Uncased
52-15/16 x 8 x 25
073 CEU4
093 CEU4
123 CEU4
38-1/2 x 7-15/16 x 25-3/16
153 CEU4
183 CFU4
243 CFU4
49-7/16 x 7-1/2 x 25-3/16
All indoor units require 208–230V/60Hz/1Ph and an AWG18-2 communication cable.
Model number shows nominal capacity and frame size designator.
Nominal cooling capacity rating obtained with air entering the indoor unit at 80ºF dry bulb (DB) and
67ºF wet bulb (WB) and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB).
1
2
3
31
123VEA2
42 x 8 x 25
3/8, 5/8
60
75
46
58
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
243VJA2
123 CEA4
1/4, 1/2
55
35-7/16 x 7-7/8 x 19-5/16
Floor Standing –Cased
Pipe
Weight Connections
(lbs.) (inches, O.D.)
(Liquid, Vapor)
1/4, 1/2
1/4, 1/2
3/8, 5/8
1/4, 1/2
3/8, 5/8
Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60°
F wet bulb (WB) and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
4
H/M/L = High/Medium/Low
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PRODUCT DATA
|
19
Zone Controllers
Table 6: Summary Data—Zone Controllers
Zone Controller
Name
Model No.
Simple Controller with
mode selection
Product Data
Simple Controller
without mode selection
PQRCVCL0Q
Max Wire
Case Color Length
(ft)
Black
PQRCVCL0QW
White
PQRCHCA0Q
Black
PQRCHCA0QW
White
Description
164
Allows control of indoor unit on/off, operation mode, fan speed,
and temperature setpoint for up to 16 indoor units.
164
Allows control of indoor unit on/off, fan speed, and temperature
setpoint for up to 16 indoor units.
Allows control of indoor unit on/off, operation mode, occupied/
unoccupied temperature setpoints, fan speed, and air flow
direction for up to 16 indoor units. Programmable schedule with 5
events per day with control of occupied/unoccupied, on/off,
mode, setpoints and fan speed. Advanced functions include
two setpoint autochangeover, minimum difference between
setpoints, setback, timed override, target energy consumption
display, check energy display and master/slave.
Allows control of indoor unit on/off, operation mode, occupied
and unoccupied temperature setpoints, fan speed, and airflow
direction for up to 16 indoor units. Programmable schedule with
5 events per day with control of occupied unoccupied, on/off,
mode, setpoints and fan speed. Advanced functions include two
setpoint autochangeover, minimum difference between setpoints,
setback and timed override.
LG Premium
Controller
PREMTA000
Ivory
164
LG Programmable
Thermostat
PREMTB10U
White
164
Wireless Handheld
PQWRHQ0FDB
Ivory
----
Allows control of indoor unit on/off, operation mode, fan speed,
and temperature setpoint.
Wall-Mounted Remote
Temperature Sensor
PQRSTA0
Ivory
50
Allows remote temperature measurement for cassette and
ducted units.
Before specifying or placing an order, refer to the V-Net Network Solution Engineering Product Data Book and review the detailed technical data provided to fully understand the capabilities and limitations of these
devices.
For information on controller compatibility refer to Table 11 - Indoor Unit Controls and Options.
20
|
PRODUCT DATA
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL DATA
Communication Cables & Specialty Application Devices
Table 7: Summary Data—Zone Controller Communication Cables
Communication Cable
Name
Wired Remote Group
Control Cable Assembly
Wired Remote/Group Control
Extension Cable
Model No.
Wire Length (ft.)
Description
PZCWRCG3
33
Required when grouping multiple indoor units with a single
zone controller.
PZCWRC1
33
Increases the distance between a remote controller and an
indoor unit or between indoor units in a control group.
Before specifying or placing an order, refer to the V-Net Network Solution Engineering Product Data Book and review the detailed technical data provided to fully understand the capabilities and limitations of
these devices.
For information on controller compatibility refer to Table 11 - Indoor Unit Controls and Options.
Table 8: Summary Data—Speciality Application Devices
Name
Model No.
Simple Dry Contact
PQDSB1
Dry Contact for
Economizer, occupied/
unoccupied
PQDSBC1
Dry Contact Unit for
24V Thermostat
PDRYCB300
Digital Output
(DO) Kit
PQNFP00T0
I/O Module
PEXPMB000
Auxiliary Heater
Relay Kit
PRARH0
PRARS0
Auxiliary Two-Stage
Heater Relay Kit
PRARH1
Power Distribution
Indicator (PDI)
Premium
PQNUD1S41
Mode Selector Switch
PRDSBM
Connect
to
Application
Indoor
Unit
On/Off, Run Status,
Error Status
On/Off, Mode,
Controller Lock, Power
Save, Run Status,
Error Status
On/Off, Thermo On/
Off, Mode, Fan Speed,
Run Status, Error
Status
Binary
Signals
Input/
Output
1/2
2/2
---
Description
Enables the indoor unit to be
controlled and monitored by third
party controls using binary inputs
and outputs.
Enables the indoor unit to be
controlled and monitored by a third
party thermostat or controller.
One 25A DPST normally open relay.
Used with central controller to control
On/Off
0/1
third party device manually or by
schedule.
3 Digital Inputs: Dry Contact input only
3 Digital Outputs: Max. 2A@30VAC/DC
Third party equipment
4 Analog Outputs: 0 to 10 VDC,
AC
control. Allows system
configurable; 0 to 20 mA, configurable
Smart IV
expansion through
--4 Universal Inputs individually
and
Digital and Analog
configurable as analog or digital:
ACP IV
inputs and outputs.
Analog: Voltage. Current. Thermistor
(NTC, PT, Ni)
Digital for Dry Contact input only
Third party
Adds coordinated control of an
Indoor
supplemental heat
0/1
external heater with normal heat
Unit
control
pump operations.
Third party
Adds coordinated control of an
Indoor
supplemental heat
0/2
external heater with normal heat
Unit
control
pump operations.
Monitors total outdoor unit power
Energy
8 Watt
Comm
consumption for up to eight systems,
consumption
Node
Bus
and distributes per indoor unit based
monitoring
Meters
on weighted calculation.
Comm
Bus
Outdoor
Unit
Multi V Heat
Pump Only
---
Locks outdoor unit into Heat,
Cool, or Fan Mode.
Before specifying or placing an order, refer to the V-Net Network Solution Engineering Product Data Book and review the detailed technical data provided to fully understand the capabilities and limitations of these
devices.
For information on controller compatibility refer to Table 11 - Indoor Unit Controls and Options.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PRODUCT DATA
|
21
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
Speciality Application
Device
Central Controllers
Product Data
Table 9: Summary Data—Central Controllers (connect to the outdoor unit terminals Internet A, Internet B)
No. of Binary
Devices Systems Devices Comm
Central
Power,
Name
Model No.
per
per Comm per Comm Bus Signals
Controller
Input/
Conn
Controller
Bus
Bus
Ports Output
AC Smart IV
PACS4B000
128
16
128
1
2 DI /
2 DO
AC Ez
PQCSZ250S0
32
16
256
1
---
Advanced
Control
Platform IV
(ACP IV)
PACP4B000
256
16
64
4
Description
Monitors / operates indoor units
through a touch screen. Manages
up to 128 devices. Advanced
functions include programmable
schedules, temperature setpoint
range lock, remote controller lock,
run time limit, manual control and
24 VAC
scheduling of digital output kit,
peak/demand control, visual floor
plan navigation, web access,
operation and error history log, one
digital input and two digital outputs
for device interlocking and error
e-mail notification.
12 VDC,
ODU
10/4
Provides for scheduling in addition
to basic indoor unit control and
monitoring.
Provides for scheduling, remote
controller lock, setpoint range limit,
web access, peak/demand control,
24 VAC PDI integration, and AC Manager
Plus integration advanced
functionality in addition to basic unit
control and monitoring.
Before specifying or placing an order, refer to the V-Net Network Solution Engineering Product Data Book and review the detailed technical data provided to fully understand the capabilities and limitations of these
devices.
For information on controller compatibility refer to Table 11 - Indoor Unit Controls and Options.
Table 10: Summary Data—Integration Solutions (connect to outdoor unit terminals Internet A, Internet B)
Integration
Solution
Name
Model No.
Devices Systems
Devices
per
per
per Comm
Comm
Controller
Bus
Bus
No. of
Comm
Bus
Ports
Power
Binary
Signals
Input/
Output
ACP IV
BACnet®
Gateway*
PQNFB17C1
256
16
256
4
24 VAC
10/4
LonWorks®
Gateway*
PLNWKB100
64
16
64
1
24 VAC
2/2
Description
Allow integration of LG equipment
for control and monitoring by open
protocol BACnet® and LonWorks®
building automation and controls
systems.*
Before specifying or placing an order, refer to the V-Net Network Solution Engineering Product Data Book and review the detailed technical data provided to fully understand the capabilities and limitations of these
devices.
For information on controller compatibility refer to Table 11 - Indoor Unit Controls and Options.
* BACnetTM is a trademark of ASHRAE; LonWorksTM is a trademark of Echlelon Corporation.
22
|
PRODUCT DATA
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL DATA
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PRODUCT DATA
|
23
GENERAL DATA
Indoor Units—Controls and Options
Operation
Controllers Filter
Others
Product Data
Airflow
For Heat Recovery systems only.
Primary washable filters.
3
Plasma filter kit accessories available separately, except for ArtCool Mirror which is included as standard.
4
Requires 7-day programmable zone controller.
5
Requires ventilation kit PTVK430 or PTVK410+PTVK420 (For TP, TN, TM frames)(Temperature, humidity, and volume limitations apply).
6
Heat Pump systems only.
2
|
Floor Mount—
Uncased
Floor Mount—Cased
Convertible
Surface Mount
Ceiling
Suspended
5–24 7–24 7–24 18–24 5–18 24–48 7–96 7–24 7–24 12-36 42-53 18–24 9–12 7–24 7–24
Nominal Chassis Size (MBh)
1
1
1
2
4
4
1
1
1
1
1
1
1
1
1
Air supply outlets
manual auto
manual manual
Airflow direction (left/right)
√
√
√
√
√
√
√
√
Auto airflow direction (up/down)
3
3
4
4
4
4
3
3
3
3
3
3
3
3
3
Fan speed (Heating mode)
4
4
5
5
5
5
3
3
3
3
3
4
4
3
3
Fan speed (Cooling mode)
3
3
4
4
4
4
3
3
3
3
3
3
3
3
3
Fan speed (fan mode)
Chaos swing (random louver
√
√
swing)
√
√
√
√
√
√
√
√
Chaos wind (random fan speed)
√
√
√
√
√
√
√
√
Jet-cool (power cooling)
√
√
√
√
√
√
√
√
√
E.S.P. control
√
√
√
√
√
√
√
√
√
√
√
High ceiling
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Auto-restart after power restore
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Hot start
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Diagnostics
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Auto changeover1
√
√
√
√
√
√
√
√
Auto operation6
√
√
√
√
√
√
√
√
√
Auto clean (coil dry)
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Child lock
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Dual thermistor control
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Dual set-point control
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Filter life display
Power consumption display
√
√
√
√
√
√
√
√
√
√
(with PDI)
√
√
√
√
√
√
√
√
√
√
√
√
√
Forced operation
Group control – Requires the
use of one Group control cable
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
kit (PZCWRCG3) for every
additional indoor unit
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Timer (on/off)
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Weekly schedule
√
√
√
√
√
√
√
√
Test operation mode
o
√
o
o
o
o
√
√
√
√
√
Plasma3
√
√
√
√
√
√
√
√
o
o
o
o
o
Washable anti-fungal2
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
7-day programmable controller
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
Simple controller w/mode
o
o
o
o
o
o
o
o
o4
o
o
o
o
o4
o4
Simple controller w/o mode
o
o
o
o
o
o
o4
o4
√
Wireless controller
√
√
√
√
√
√
√
Condensate lift
√
√5
√5
√
√
√
√
√
Ventilation air
√
√
√
√
√
√
Casing
√
√
√
√
Standard grille
o
o
Auto elevation grille
o
Suction grille
√
√
Suction canvas
Aux. heat kit
1
24
Vert.-Horiz. AHU (NK)
Vert.-Horiz. AHU (NJ)
Ducted Low Static—
Bottom Return
Ducted Low Static
Ducted High Static
4-Way Cassette
2-Way
Cassette
1-Way
Cassette
Wall Mounted—
ART COOL™ Mirror
Feature
Wall
Mounted—
Standard Finish
Table 11: Indoor Units—Controls and Options
PRODUCT DATA
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
√ = Standard feature
o = Unit option
PERFORMANCE DATA
"Performance Data" on page 26
"Unit Refrigerant Flow Diagrams" on page 44
"Outdoor Wiring Diagram" on page 157
PERFORMANCE DATA
Cooling Capacity — 3.0 Ton
Table 12a: ARUN036GS2 Heat Pump—Nominal Cooling Capacity
Combination
Ratio (%)
Performance Data
130
120
110
Outdoor
Air Temp
(°F) DB
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
MBh
32.7
32.7
32.7
32.7
32.7
32.7
32.7
32.7
32.7
32.7
32.7
32.7
32.7
32.7
32.7
32.7
32.7
31.9
29.4
29.1
30.1
30.1
30.1
30.1
30.1
30.1
30.1
30.1
30.1
30.1
29.8
30.1
30.1
30.1
30.1
30.1
30.1
28.9
28.0
27.8
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
25.9
25.1
24.8
57
PI
1.22
1.24
1.26
1.27
1.31
1.32
1.37
1.39
1.45
1.48
1.53
1.68
1.81
2.10
2.25
2.41
2.58
2.82
2.88
2.91
1.11
1.13
1.15
1.16
1.20
1.21
1.25
1.27
1.33
1.36
1.44
1.51
1.62
1.87
2.01
2.15
2.30
2.53
2.76
2.79
1.01
1.02
1.04
1.06
1.09
1.11
1.13
1.16
1.20
1.23
1.26
1.34
1.44
1.66
1.78
1.91
2.04
2.24
2.48
2.50
MBh
39.5
39.5
39.5
39.5
39.5
39.5
39.5
39.5
39.5
39.5
39.5
39.5
39.5
39.5
39.5
39.5
39.5
37.4
34.8
34.5
36.7
36.7
36.7
36.7
36.7
36.7
36.7
36.7
36.7
36.7
36.3
36.7
36.7
36.7
36.7
36.7
36.7
34.2
32.6
32.2
33.6
33.6
33.6
33.6
33.6
33.6
33.6
33.6
33.6
33.6
33.6
33.6
33.6
33.6
33.6
33.6
33.6
29.9
28.3
28.1
61
PI
1.56
1.58
1.59
1.61
1.65
1.66
1.71
1.74
1.82
1.88
2.03
2.23
2.41
2.79
3.00
3.23
3.46
3.66
3.73
3.77
1.42
1.43
1.45
1.47
1.50
1.52
1.56
1.59
1.66
1.69
1.88
1.99
2.14
2.48
2.66
2.86
3.06
3.37
3.61
3.64
1.27
1.29
1.31
1.32
1.36
1.37
1.41
1.44
1.50
1.53
1.60
1.76
1.89
2.18
2.34
2.51
2.70
3.02
3.25
3.28
MBh
44.9
44.9
44.9
44.9
44.9
44.9
44.9
44.9
44.9
44.9
44.9
44.9
44.1
42.8
42.0
41.6
40.7
38.2
35.7
35.3
41.6
41.6
41.6
41.6
41.6
41.6
41.6
41.6
41.6
41.6
41.2
41.6
41.6
41.6
41.2
40.8
40.0
36.7
33.8
33.4
38.0
38.0
38.0
38.0
38.0
38.0
38.0
38.0
38.0
38.0
38.0
38.0
38.0
38.0
38.0
38.0
38.0
35.2
32.4
32.0
64
Indoor Air Temperature (°F) WB
67
70
PI
MBh
PI
MBh
PI
1.83
1.85
1.87
1.88
1.92
1.93
1.97
2.02
2.11
2.26
2.45
2.70
2.84
3.10
3.23
3.36
3.50
3.80
3.94
3.97
1.65
1.67
1.69
1.70
1.74
1.75
1.80
1.84
1.92
2.01
2.26
2.39
2.58
2.99
3.21
3.34
3.48
3.68
3.91
3.95
1.51
1.52
1.54
1.56
1.59
1.61
1.63
1.66
1.73
1.77
1.91
2.10
2.26
2.62
2.82
3.02
3.25
3.55
4.12
4.16
50.0
50.0
50.0
50.0
50.0
50.0
50.0
50.0
48.3
47.4
47.0
46.2
45.3
43.7
43.2
42.0
41.6
39.5
36.9
36.6
46.2
46.2
46.2
46.2
46.2
46.2
46.2
46.2
46.2
46.2
45.7
45.3
44.5
42.9
42.5
41.2
40.8
38.8
36.3
35.9
42.5
42.5
42.5
42.5
42.5
42.5
42.5
42.5
42.5
42.5
42.5
42.5
42.5
42.5
41.7
40.5
40.1
38.0
35.6
35.2
Capacity rated using ISO 5151—Test Rating Standard for Non-Ducted Heat Pumps.
Cooling mode stable operation is ensured when the outdoor ambient dry-bulb temperature is between 23°F and 115°F.
Rapid cooling operation is stable at indoor temperatures up to 80°F DB.
Power Input (PI) in kW and includes compressor(s) and outdoor fan motor(s).
Rated with an equivalent piping length of 24.6 ft. and no change in elevation between the indoor and outdoor unit.
MBh = Net Capacity
R410A, 60 Hz
26
|
PERFORMANCE DATA
2.10
2.12
2.14
2.15
2.19
2.21
2.23
2.25
2.31
2.44
2.57
2.74
2.86
3.13
3.26
3.39
3.53
4.07
4.38
4.41
1.92
1.94
1.96
1.97
2.01
2.02
2.05
2.09
2.18
2.37
2.66
2.72
2.85
3.11
3.24
3.37
3.50
4.05
4.35
4.39
1.71
1.73
1.74
1.76
1.79
1.81
1.85
1.89
1.97
2.08
2.25
2.48
2.67
3.09
3.22
3.35
3.48
4.02
4.32
4.36
51.6
51.6
51.6
51.6
51.6
51.6
51.6
50.8
49.5
48.7
47.9
47.0
46.2
44.9
44.1
43.2
42.8
40.3
37.8
37.4
50.7
50.7
50.7
50.7
50.7
50.7
50.7
49.9
48.6
47.8
46.5
46.2
45.3
44.1
43.3
42.5
42.0
39.6
37.1
36.7
46.9
46.9
46.9
46.9
46.9
46.9
46.9
46.9
46.9
46.9
46.1
45.3
44.5
43.3
42.5
41.7
40.9
38.8
36.4
36.0
2.04
2.05
2.07
2.09
2.12
2.14
2.18
2.19
2.33
2.46
2.59
2.76
2.89
3.15
3.29
3.43
3.56
4.24
4.51
4.56
2.09
2.11
2.12
2.14
2.17
2.19
2.22
2.23
2.32
2.45
2.68
2.74
2.87
3.13
3.27
3.40
3.54
4.21
4.48
4.53
1.94
1.96
1.98
1.99
2.03
2.04
2.08
2.12
2.23
2.42
2.56
2.72
2.85
3.11
3.24
3.38
3.51
4.19
4.46
4.50
MBh
52.1
52.1
52.1
52.1
52.1
52.1
52.1
51.6
50.0
49.1
48.7
47.9
47.0
45.3
44.9
44.1
43.2
41.6
40.3
39.9
51.1
51.1
51.1
51.1
51.1
51.1
51.1
50.7
49.1
48.6
47.3
47.0
46.2
44.5
44.1
43.3
42.5
40.8
39.6
39.2
49.8
49.8
49.8
49.8
49.8
49.8
49.8
49.8
48.2
47.3
46.9
45.7
45.3
43.7
42.9
42.5
41.7
40.1
38.8
38.4
73
PI
1.99
2.00
2.02
2.04
2.09
2.10
2.13
2.13
2.34
2.47
2.61
2.77
2.90
3.17
3.31
3.45
3.58
4.31
4.68
4.73
2.07
2.09
2.11
2.12
2.16
2.17
2.18
2.19
2.33
2.46
2.69
2.75
2.89
3.15
3.29
3.42
3.55
4.28
4.65
4.70
2.11
2.13
2.14
2.16
2.19
2.21
2.23
2.24
2.31
2.44
2.57
2.73
2.86
3.13
3.26
3.39
3.53
4.25
4.62
4.67
MBh
53.3
53.3
53.3
53.3
53.3
53.3
53.3
52.5
51.2
50.4
49.5
48.7
47.9
46.6
45.8
45.3
44.5
42.4
41.1
40.7
52.4
52.4
52.4
52.4
52.4
52.4
52.4
51.5
49.9
49.5
48.2
47.8
47.0
45.8
44.9
44.1
43.3
41.6
40.4
40.0
51.4
51.4
51.4
51.4
51.4
51.4
51.4
50.6
49.0
48.6
47.8
46.9
46.1
44.5
44.1
43.3
42.5
40.9
39.7
39.2
76
PI
1.93
1.95
1.97
1.99
2.02
2.04
2.07
2.10
2.36
2.49
2.62
2.79
2.93
3.20
3.34
3.48
3.61
4.38
4.78
4.83
1.99
2.01
2.02
2.04
2.07
2.09
2.12
2.13
2.34
2.47
2.71
2.77
2.91
3.18
3.31
3.45
3.58
4.35
4.75
4.80
2.04
2.06
2.08
2.09
2.13
2.14
2.18
2.19
2.33
2.46
2.59
2.75
2.89
3.15
3.28
3.42
3.55
4.32
4.72
4.77
Due to differences in test method and procedures, capacity data values provided in
these tables may differ from certified performance information published by AHRI or
other standardized testing agencies. AHRI testing protocol sets the volume of air
flowing over the coil at 444 CFM/ton and limits the number of indoor units connected to
the system being tested. LG conducts capacity tests using airflow rates and limits the
number of indoor units per system as stated in Table 4 (a and b) on pages 17–18,
Table 5 on page 19, and Table 14 on page 56.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PERFORMANCE DATA
Cooling Capacity—3.0 Ton
Table 12b: ARUN036GS2 Heat Pump—Nominal Cooling Capacity
Combination
Ratio (%)
100
80
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
MBh
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
24.4
24.2
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
20.2
20.2
20.2
20.2
20.2
20.2
20.2
20.2
20.2
20.2
20.2
20.2
20.2
20.2
20.2
20.2
20.2
20.2
20.2
20.2
57
PI
0.78
0.81
0.84
0.87
0.93
0.96
1.03
1.04
1.09
1.11
1.13
1.19
1.27
1.46
1.57
1.67
1.79
2.02
2.23
2.25
0.74
0.77
0.79
0.82
0.87
0.90
0.92
0.94
0.97
0.99
1.01
1.04
1.12
1.28
1.37
1.46
1.56
1.70
1.72
1.73
0.65
0.67
0.69
0.72
0.76
0.78
0.82
0.83
0.86
0.88
0.90
0.92
0.97
1.10
1.18
1.26
1.34
1.45
1.47
1.49
MBh
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
29.0
27.5
27.2
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
61
PI
1.02
1.05
1.09
1.12
1.18
1.21
1.27
1.29
1.35
1.38
1.41
1.54
1.65
1.91
2.05
2.19
2.35
2.73
2.95
2.97
0.93
0.95
0.98
1.01
1.06
1.09
1.13
1.15
1.20
1.22
1.25
1.33
1.43
1.65
1.77
1.89
2.02
2.20
2.23
2.24
0.83
0.85
0.87
0.89
0.94
0.96
0.99
1.02
1.05
1.08
1.10
1.14
1.23
1.41
1.51
1.62
1.73
1.88
1.90
1.92
MBh
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
32.9
30.6
30.2
30.9
30.9
30.9
30.9
30.9
30.9
30.9
30.9
30.9
30.9
30.9
30.9
30.9
30.9
30.9
30.9
30.9
30.6
30.3
30.3
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
64
Indoor Air Temperature (°F) WB
67
70
PI
MBh
PI
MBh
PI
1.18
1.21
1.24
1.27
1.33
1.40
1.46
1.49
1.56
1.59
1.67
1.83
1.97
2.28
2.45
2.62
2.82
3.22
3.75
3.78
1.11
1.14
1.17
1.19
1.25
1.27
1.29
1.32
1.38
1.41
1.44
1.58
1.70
1.96
2.10
2.25
2.41
2.62
2.65
2.67
0.98
1.01
1.03
1.05
1.10
1.12
1.14
1.16
1.21
1.23
1.26
1.35
1.45
1.67
1.78
1.91
2.05
2.21
2.23
2.25
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
36.7
34.4
34.0
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.0
33.7
33.7
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
Capacity rated using ISO 5151—Test Rating Standard for Non-Ducted Heat Pumps.
Cooling mode stable operation is ensured when the outdoor ambient dry-bulb temperature is between 23°F and 115°F.
Rapid cooling operation is stable at indoor temperatures up to 80°F DB.
Power Input (PI) in kW and includes compressor(s) and outdoor fan motor(s).
Rated with an equivalent piping length of 24.6 ft. and no change in elevation between the indoor and outdoor unit.
MBh = Net Capacity
R410A, 60 Hz
1.24
1.30
1.36
1.43
1.55
1.61
1.66
1.69
1.77
1.81
1.96
2.15
2.32
2.69
2.89
3.10
3.33
3.72
4.00
4.04
1.27
1.30
1.32
1.35
1.40
1.43
1.47
1.50
1.57
1.60
1.68
1.84
1.99
2.30
2.47
2.65
2.84
3.07
3.10
3.13
1.14
1.16
1.18
1.21
1.25
1.27
1.29
1.31
1.37
1.40
1.43
1.57
1.68
1.94
2.08
2.23
2.39
2.59
2.61
2.64
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.4
41.6
40.9
40.1
37.4
35.1
34.8
38.5
38.5
38.5
38.5
38.5
38.5
38.5
38.5
38.5
38.5
38.5
38.5
38.5
38.5
38.5
38.5
38.5
37.8
36.1
36.1
34.2
34.2
34.2
34.2
34.2
34.2
34.2
34.2
34.2
34.2
34.2
34.2
34.2
34.2
34.2
34.2
34.2
34.2
34.2
34.2
1.61
1.64
1.67
1.71
1.77
1.80
1.86
1.90
1.98
2.10
2.27
2.50
2.70
3.09
3.22
3.35
3.48
3.81
4.06
4.10
1.46
1.48
1.51
1.54
1.59
1.62
1.65
1.68
1.76
1.79
1.94
2.13
2.30
2.66
2.86
3.07
3.25
3.54
3.58
3.61
1.27
1.30
1.32
1.34
1.39
1.41
1.44
1.47
1.53
1.57
1.64
1.80
1.94
2.24
2.41
2.58
2.77
2.99
3.02
3.04
MBh
45.5
45.5
45.5
45.5
45.5
45.5
45.5
45.5
45.5
45.5
45.5
45.1
44.3
42.8
42.0
41.6
40.9
39.3
37.4
37.1
40.9
40.9
40.9
40.9
40.9
40.9
40.9
40.9
40.9
40.9
40.9
40.9
40.9
40.9
40.9
40.6
39.9
38.5
37.8
37.8
36.4
36.4
36.4
36.4
36.4
36.4
36.4
36.4
36.4
36.4
36.4
36.4
36.4
36.4
36.4
36.4
36.4
36.4
36.4
36.4
73
PI
1.74
1.77
1.80
1.83
1.89
1.92
2.00
2.04
2.13
2.30
2.49
2.71
2.84
3.10
3.24
3.37
3.50
3.88
4.22
4.25
1.59
1.62
1.64
1.67
1.72
1.75
1.77
1.81
1.88
1.96
2.12
2.34
2.52
2.92
3.14
3.34
3.47
3.61
3.63
3.66
1.39
1.41
1.43
1.45
1.50
1.52
1.54
1.58
1.64
1.68
1.79
1.97
2.12
2.45
2.63
2.83
3.03
3.29
3.31
3.33
MBh
49.3
49.3
49.3
49.3
49.3
49.3
49.3
49.3
48.1
47.4
46.6
45.8
45.1
43.5
42.8
42.4
41.6
40.1
39.0
38.5
44.4
44.4
44.4
44.4
44.4
44.4
44.4
44.4
44.4
44.4
44.4
44.4
44.0
42.6
41.9
41.3
40.6
39.2
38.5
38.5
39.4
39.4
39.4
39.4
39.4
39.4
39.4
39.4
39.4
39.4
39.4
39.4
39.4
39.4
39.4
39.4
39.4
38.8
38.8
38.8
76
PI
1.98
2.02
2.05
2.08
2.14
2.17
2.21
2.25
2.31
2.44
2.57
2.73
2.86
3.13
3.26
3.39
3.53
4.00
4.31
4.35
1.78
1.80
1.83
1.85
1.91
1.93
1.96
2.00
2.08
2.23
2.42
2.66
2.84
3.10
3.23
3.36
3.49
3.61
3.63
3.66
1.54
1.56
1.59
1.61
1.65
1.68
1.71
1.74
1.82
1.87
2.03
2.23
2.40
2.79
3.00
3.22
3.45
3.64
3.66
3.70
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
90
Outdoor Air
Temp (°F)
DB
Due to differences in test method and procedures, capacity data values provided in
these tables may differ from certified performance information published by AHRI or
other standardized testing agencies. AHRI testing protocol sets the volume of air
flowing over the coil at 444 CFM/ton and limits the number of indoor units connected to
the system being tested. LG conducts capacity tests using airflow rates and limits the
number of indoor units per system as stated in Table 4 (a and b) on pages 17–18,
Table 5 on page 19, and Table 14 on page 56.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PERFORMANCE DATA
|
27
PERFORMANCE DATA
Cooling Capacity—3.0 Ton
Table 12c: ARUN036GS2 Heat Pump—Nominal Cooling Capacity
Combination
Ratio (%)
Performance Data
70
60
50
Outdoor Air
Temp (°F)
DB
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
MBh
17.6
17.6
17.6
17.6
17.6
17.6
17.6
17.6
17.6
17.6
17.6
17.6
17.6
17.6
17.6
17.6
17.6
17.6
17.6
17.6
15.1
15.1
15.1
15.1
15.1
15.1
15.1
15.1
15.1
15.1
15.1
15.1
15.1
15.1
15.1
15.1
15.1
15.1
15.1
15.1
12.6
12.6
12.6
12.6
12.6
12.6
12.6
12.6
12.6
12.6
12.6
12.6
12.6
12.6
12.6
12.6
12.6
12.6
12.6
12.6
57
PI
0.59
0.61
0.63
0.65
0.69
0.71
0.72
0.73
0.76
0.77
0.79
0.80
0.83
0.95
1.01
1.08
1.15
1.24
1.26
1.27
0.50
0.51
0.53
0.56
0.57
0.57
0.59
0.60
0.62
0.63
0.64
0.66
0.68
0.82
0.82
0.88
0.94
1.01
1.03
1.04
0.39
0.40
0.41
0.42
0.45
0.46
0.47
0.48
0.49
0.50
0.51
0.52
0.54
0.66
0.66
0.70
0.75
0.81
0.82
0.83
MBh
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
18.3
18.3
18.3
18.3
18.3
18.3
18.3
18.3
18.3
18.3
18.3
18.3
18.3
18.3
18.3
18.3
18.3
18.3
18.3
18.3
15.3
15.3
15.3
15.3
15.3
15.3
15.3
15.3
15.3
15.3
15.3
15.3
15.3
15.3
15.3
15.3
15.3
15.3
15.3
15.3
61
PI
0.74
0.76
0.78
0.80
0.84
0.85
0.87
0.88
0.92
0.94
0.95
0.98
1.04
1.19
1.28
1.36
1.45
1.56
1.58
1.59
0.62
0.64
0.65
0.68
0.70
0.70
0.71
0.72
0.75
0.76
0.78
0.80
0.85
1.04
1.04
1.11
1.18
1.27
1.29
1.30
0.48
0.49
0.51
0.52
0.54
0.55
0.56
0.57
0.60
0.61
0.62
0.64
0.68
0.83
0.83
0.89
0.94
1.01
1.02
1.03
MBh
24.1
24.1
24.1
24.1
24.1
24.1
24.1
24.1
24.1
24.1
24.1
24.1
24.1
24.1
24.1
24.1
24.1
24.1
24.1
24.1
20.6
20.6
20.6
20.6
20.6
20.6
20.6
20.6
20.6
20.6
20.6
20.6
20.6
20.6
20.6
20.6
20.6
20.6
20.6
20.6
17.2
17.2
17.2
17.2
17.2
17.2
17.2
17.2
17.2
17.2
17.2
17.2
17.2
17.2
17.2
17.2
17.2
17.2
17.2
17.2
64
Indoor Air Temperature (°F) WB
67
70
PI
MBh
PI
MBh
PI
0.85
0.87
0.89
0.91
0.95
0.96
0.99
1.00
1.04
1.07
1.09
1.13
1.22
1.40
1.49
1.60
1.71
1.84
1.86
1.87
0.71
0.73
0.74
0.77
0.79
0.79
0.80
0.82
0.85
0.87
0.89
0.92
0.99
1.22
1.22
1.30
1.39
1.50
1.51
1.52
0.55
0.57
0.58
0.59
0.61
0.63
0.64
0.65
0.68
0.69
0.71
0.74
0.79
0.97
0.97
1.04
1.11
1.19
1.21
1.22
Capacity rated using ISO 5151—Test Rating Standard for Non-Ducted Heat Pumps.
Cooling mode stable operation is ensured when the outdoor ambient dry-bulb temperature is between 23°F and 115°F.
Rapid cooling operation is stable at indoor temperatures up to 80°F DB.
Power Input (PI) in kW and includes compressor(s) and outdoor fan motor(s).
Rated with an equivalent piping length of 24.6 ft. and no change in elevation between the indoor and outdoor unit.
MBh = Net Capacity
R410A, 60 Hz
28
|
PERFORMANCE DATA
26.7
26.7
26.7
26.7
26.7
26.7
26.7
26.7
26.7
26.7
26.7
26.7
26.7
26.7
26.7
26.7
26.7
26.7
26.7
26.7
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
0.98
1.00
1.02
1.04
1.08
1.09
1.11
1.13
1.18
1.20
1.23
1.31
1.41
1.62
1.73
1.86
1.98
2.13
2.15
2.17
0.82
0.83
0.85
0.88
0.89
0.89
0.91
0.92
0.96
0.98
1.00
1.07
1.15
1.41
1.41
1.51
1.62
1.74
1.75
1.77
0.64
0.65
0.66
0.68
0.70
0.71
0.72
0.74
0.77
0.78
0.80
0.85
0.91
1.12
1.12
1.21
1.29
1.39
1.40
1.41
29.9
29.9
29.9
29.9
29.9
29.9
29.9
29.9
29.9
29.9
29.9
29.9
29.9
29.9
29.9
29.9
29.9
29.9
29.9
29.9
25.7
25.7
25.7
25.7
25.7
25.7
25.7
25.7
25.7
25.7
25.7
25.7
25.7
25.7
25.7
25.7
25.7
25.7
25.7
25.7
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
1.11
1.13
1.15
1.17
1.21
1.22
1.24
1.27
1.32
1.34
1.38
1.49
1.61
1.85
1.99
2.13
2.28
2.47
2.49
2.51
0.92
0.94
0.95
0.98
1.00
1.00
1.01
1.03
1.08
1.10
1.12
1.22
1.31
1.62
1.62
1.74
1.86
2.01
2.03
2.04
0.72
0.74
0.75
0.76
0.78
0.80
0.81
0.82
0.86
0.87
0.89
0.97
1.05
1.29
1.29
1.38
1.48
1.60
1.62
1.63
MBh
31.8
31.8
31.8
31.8
31.8
31.8
31.8
31.8
31.8
31.8
31.8
31.8
31.8
31.8
31.8
31.8
31.8
31.8
31.8
31.8
27.3
27.3
27.3
27.3
27.3
27.3
27.3
27.3
27.3
27.3
27.3
27.3
27.3
27.3
27.3
27.3
27.3
27.3
27.3
27.3
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
22.7
73
PI
1.19
1.21
1.22
1.24
1.28
1.30
1.33
1.36
1.41
1.44
1.48
1.63
1.75
2.02
2.17
2.32
2.49
2.69
2.71
2.73
0.98
1.00
1.01
1.04
1.06
1.06
1.08
1.10
1.15
1.18
1.21
1.33
1.43
1.77
1.77
1.89
2.03
2.19
2.21
2.04
0.77
0.78
0.80
0.81
0.83
0.84
0.86
0.88
0.92
0.94
0.96
1.06
1.14
1.41
1.41
1.51
1.62
1.75
1.76
1.63
MBh
34.5
34.5
34.5
34.5
34.5
34.5
34.5
34.5
34.5
34.5
34.5
34.5
34.5
34.5
34.5
34.5
34.5
34.5
34.5
34.5
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
24.6
24.6
24.6
24.6
24.6
24.6
24.6
24.6
24.6
24.6
24.6
24.6
24.6
24.6
24.6
24.6
24.6
24.6
24.6
24.6
76
PI
1.34
1.35
1.37
1.39
1.43
1.45
1.46
1.49
1.56
1.59
1.67
1.84
1.98
2.28
2.45
2.64
2.82
3.04
3.06
3.09
1.10
1.12
1.13
1.16
1.18
1.18
1.19
1.22
1.27
1.30
1.36
1.50
1.61
2.00
2.00
2.15
2.30
2.48
2.49
2.52
0.87
0.88
0.89
0.90
0.93
0.94
0.95
0.97
1.01
1.03
1.08
1.19
1.28
1.59
1.59
1.71
1.84
1.98
1.99
2.01
Due to differences in test method and procedures, capacity data values provided in
these tables may differ from certified performance information published by AHRI or
other standardized testing agencies. AHRI testing protocol sets the volume of air
flowing over the coil at 444 CFM/ton and limits the number of indoor units connected to
the system being tested. LG conducts capacity tests using airflow rates and limits the
number of indoor units per system as stated in Table 4 (a and b) on pages 17–18,
Table 5 on page 19, and Table 14 on page 56.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PERFORMANCE DATA
Cooling Capacity —4.0 Ton
Table 13a: ARUN047GS2 Heat Pump—Nominal Cooling Capacity
Combination
Ratio (%)
130
110
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
MBh
41.0
41.0
41.0
41.0
41.0
41.0
41.0
41.0
41.0
41.0
41.0
41.0
41.0
41.0
41.0
41.0
41.0
39.9
36.8
36.4
37.7
37.7
37.7
37.7
37.7
37.7
37.7
37.7
37.7
37.7
37.3
37.7
37.7
37.7
37.7
37.7
37.7
36.1
35.1
34.7
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
32.4
31.4
31.1
57
PI
1.67
1.70
1.72
1.74
1.79
1.81
1.87
1.91
1.99
2.03
2.10
2.31
2.49
2.87
3.08
3.30
3.54
3.86
3.95
3.99
1.53
1.55
1.57
1.59
1.64
1.66
1.71
1.75
1.82
1.86
1.98
2.07
2.23
2.56
2.75
2.95
3.16
3.47
3.79
3.82
1.38
1.40
1.42
1.45
1.49
1.52
1.55
1.59
1.65
1.69
1.73
1.84
1.98
2.27
2.44
2.61
2.79
3.08
3.40
3.43
MBh
49.4
49.4
49.4
49.4
49.4
49.4
49.4
49.4
49.4
49.4
49.4
49.4
49.4
49.4
49.4
49.4
49.4
46.8
43.6
43.2
45.9
45.9
45.9
45.9
45.9
45.9
45.9
45.9
45.9
45.9
45.5
45.9
45.9
45.9
45.9
45.9
45.9
42.8
40.8
40.3
42.0
42.0
42.0
42.0
42.0
42.0
42.0
42.0
42.0
42.0
42.0
42.0
42.0
42.0
42.0
42.0
42.0
37.5
35.4
35.1
61
PI
2.14
2.16
2.19
2.21
2.26
2.28
2.34
2.39
2.50
2.57
2.78
3.06
3.30
3.83
4.11
4.42
4.75
5.02
5.12
5.17
1.94
1.96
1.99
2.01
2.06
2.08
2.14
2.18
2.27
2.32
2.57
2.73
2.94
3.40
3.65
3.92
4.20
4.62
4.95
4.99
1.75
1.77
1.79
1.81
1.86
1.88
1.94
1.98
2.06
2.10
2.19
2.41
2.59
2.99
3.21
3.45
3.70
4.13
4.46
4.50
MBh
56.2
56.2
56.2
56.2
56.2
56.2
56.2
56.2
56.2
56.2
56.2
56.2
55.2
53.6
52.5
52.0
51.0
47.8
44.7
44.2
52.1
52.1
52.1
52.1
52.1
52.1
52.1
52.1
52.1
52.1
51.6
52.1
52.1
52.1
51.6
51.1
50.0
45.9
42.3
41.8
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
44.1
40.5
40.1
64
Indoor Air Temperature (°F) WB
67
70
PI
MBh
PI
MBh
PI
2.51
2.54
2.56
2.58
2.63
2.65
2.71
2.76
2.89
3.10
3.36
3.70
3.90
4.25
4.43
4.61
4.79
5.21
5.40
5.44
2.27
2.29
2.31
2.33
2.38
2.40
2.47
2.52
2.63
2.75
3.09
3.28
3.53
4.10
4.41
4.58
4.76
5.04
5.36
5.41
2.07
2.09
2.11
2.14
2.18
2.20
2.23
2.28
2.38
2.43
2.62
2.88
3.10
3.59
3.86
4.15
4.45
4.87
5.65
5.70
62.5
62.5
62.5
62.5
62.5
62.5
62.5
62.5
60.4
59.4
58.8
57.8
56.7
54.6
54.1
52.5
52.0
49.4
46.2
45.8
57.8
57.8
57.8
57.8
57.8
57.8
57.8
57.8
57.8
57.8
57.2
56.7
55.7
53.6
53.1
51.6
51.1
48.5
45.4
44.9
53.2
53.2
53.2
53.2
53.2
53.2
53.2
53.2
53.2
53.2
53.2
53.2
53.2
53.2
52.2
50.6
50.1
47.6
44.6
44.1
Capacity rated using ISO 5151—Test Rating Standard for Non-Ducted Heat Pumps.
Cooling mode stable operation is ensured when the outdoor ambient dry-bulb temperature is between 23°F and 115°F.
Rapid cooling operation is stable at indoor temperatures up to 80°F DB.
Power Input (PI) in kW and includes compressor(s) and outdoor fan motor(s).
Rated with an equivalent piping length of 24.6 ft. and no change in elevation between the indoor and outdoor unit.
MBh = Net Capacity
R410A, 60 Hz
2.88
2.91
2.93
2.95
3.00
3.02
3.06
3.08
3.17
3.35
3.52
3.75
3.93
4.29
4.47
4.65
4.84
5.58
6.00
6.05
2.63
2.66
2.68
2.70
2.75
2.77
2.81
2.87
3.00
3.25
3.64
3.73
3.90
4.26
4.44
4.62
4.80
5.55
5.96
6.02
2.34
2.37
2.39
2.41
2.46
2.48
2.54
2.59
2.71
2.85
3.09
3.40
3.67
4.24
4.41
4.59
4.77
5.51
5.93
5.98
64.6
64.6
64.6
64.6
64.6
64.6
64.6
63.6
62.0
60.9
59.9
58.8
57.8
56.2
55.2
54.1
53.6
50.4
47.3
46.8
63.4
63.4
63.4
63.4
63.4
63.4
63.4
62.4
60.9
59.8
58.2
57.8
56.7
55.2
54.2
53.1
52.6
49.5
46.4
45.9
58.7
58.7
58.7
58.7
58.7
58.7
58.7
58.7
58.7
58.7
57.7
56.7
55.7
54.2
53.2
52.2
51.1
48.6
45.6
45.1
2.79
2.81
2.84
2.86
2.91
2.93
2.99
3.00
3.20
3.37
3.55
3.78
3.96
4.32
4.51
4.70
4.88
5.81
6.19
6.25
2.87
2.89
2.91
2.94
2.98
3.00
3.05
3.06
3.18
3.35
3.67
3.75
3.94
4.29
4.48
4.66
4.85
5.78
6.15
6.20
2.66
2.69
2.71
2.73
2.78
2.80
2.85
2.91
3.06
3.32
3.51
3.73
3.91
4.27
4.45
4.63
4.81
5.74
6.11
6.16
MBh
65.1
65.1
65.1
65.1
65.1
65.1
65.1
64.6
62.5
61.5
60.9
59.9
58.8
56.7
56.2
55.2
54.1
52.0
50.4
49.9
64.0
64.0
64.0
64.0
64.0
64.0
64.0
63.4
61.4
60.9
59.2
58.8
57.8
55.7
55.2
54.2
53.1
51.1
49.5
49.0
62.3
62.3
62.3
62.3
62.3
62.3
62.3
62.3
60.3
59.2
58.7
57.2
56.7
54.7
53.7
53.2
52.2
50.1
48.6
48.1
73
PI
2.72
2.74
2.77
2.79
2.86
2.88
2.92
2.93
3.21
3.39
3.57
3.80
3.98
4.35
4.53
4.73
4.90
5.91
6.42
6.48
2.84
2.87
2.89
2.91
2.96
2.98
2.99
3.00
3.19
3.37
3.69
3.77
3.96
4.32
4.50
4.69
4.87
5.87
6.38
6.44
2.89
2.92
2.94
2.96
3.01
3.03
3.06
3.07
3.17
3.35
3.52
3.75
3.93
4.29
4.47
4.65
4.84
5.83
6.34
6.40
MBh
66.7
66.7
66.7
66.7
66.7
66.7
66.7
65.7
64.1
63.0
62.0
60.9
59.9
58.3
57.3
56.7
55.7
53.1
51.5
51.0
65.5
65.5
65.5
65.5
65.5
65.5
65.5
64.5
62.4
61.9
60.3
59.8
58.8
57.3
56.2
55.2
54.2
52.1
50.6
50.0
64.3
64.3
64.3
64.3
64.3
64.3
64.3
63.3
61.3
60.8
59.8
58.7
57.7
55.7
55.2
54.2
53.2
51.1
49.6
49.1
76
PI
2.65
2.67
2.70
2.72
2.77
2.79
2.84
2.87
3.24
3.42
3.60
3.83
4.01
4.39
4.57
4.76
4.95
6.00
6.56
6.62
2.73
2.75
2.77
2.80
2.84
2.87
2.91
2.92
3.21
3.39
3.71
3.80
3.99
4.35
4.54
4.73
4.90
5.96
6.52
6.58
2.80
2.82
2.85
2.87
2.92
2.94
2.99
3.00
3.19
3.37
3.55
3.77
3.96
4.32
4.50
4.69
4.87
5.93
6.48
6.54
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
120
Outdoor Air
Temp (°F)
DB
Due to differences in test method and procedures, capacity data values provided in
these tables may differ from certified performance information published by AHRI or
other standardized testing agencies. AHRI testing protocol sets the volume of air
flowing over the coil at 444 CFM/ton and limits the number of indoor units connected to
the system being tested. LG conducts capacity tests using airflow rates and limits the
number of indoor units per system as stated in Table 4 (a and b) on pages 17–18,
Table 5 on page 19, and Table 14 on page 56.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PERFORMANCE DATA
|
29
PERFORMANCE DATA
Cooling Capacity—4.0 Ton
Table 13b: ARUN047GS2 Heat Pump—Nominal Cooling Capacity
Combination
Ratio (%)
Performance Data
100
90
80
Outdoor
Air Temp
(°F) DB
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
MBh
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
30.6
30.3
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
25.2
57
PI
1.06
1.11
1.15
1.19
1.28
1.32
1.41
1.43
1.49
1.52
1.55
1.63
1.75
2.00
2.15
2.29
2.46
2.76
3.06
3.09
1.02
1.05
1.09
1.13
1.20
1.24
1.26
1.28
1.33
1.36
1.39
1.43
1.53
1.75
1.87
2.00
2.14
2.32
2.36
2.38
0.89
0.92
0.95
0.98
1.04
1.07
1.12
1.14
1.18
1.21
1.23
1.26
1.33
1.51
1.62
1.73
1.84
1.99
2.02
2.04
MBh
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
36.3
34.4
34.0
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
30.6
61
PI
1.40
1.45
1.49
1.53
1.62
1.66
1.74
1.77
1.85
1.89
1.93
2.11
2.26
2.61
2.80
3.00
3.22
3.74
4.04
4.07
1.27
1.31
1.34
1.38
1.45
1.49
1.55
1.58
1.64
1.68
1.72
1.83
1.97
2.26
2.42
2.59
2.77
3.01
3.05
3.08
1.13
1.16
1.19
1.23
1.29
1.32
1.36
1.39
1.45
1.48
1.50
1.57
1.69
1.94
2.07
2.22
2.37
2.57
2.60
2.63
MBh
43.0
43.0
43.0
43.0
43.0
43.0
43.0
43.0
43.0
43.0
43.0
43.0
43.0
43.0
43.0
43.0
43.0
41.1
38.2
37.8
38.7
38.7
38.7
38.7
38.7
38.7
38.7
38.7
38.7
38.7
38.7
38.7
38.7
38.7
38.7
38.7
38.7
38.3
37.9
37.9
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
34.4
64
Indoor Air Temperature (°F) WB
67
70
PI
MBh
PI
MBh
PI
1.62
1.66
1.70
1.74
1.83
1.91
2.00
2.04
2.13
2.18
2.28
2.51
2.70
3.12
3.35
3.60
3.86
4.42
5.14
5.19
1.53
1.56
1.60
1.63
1.71
1.74
1.77
1.81
1.89
1.93
1.98
2.17
2.33
2.69
2.88
3.09
3.31
3.60
3.63
3.66
1.35
1.38
1.41
1.44
1.50
1.53
1.56
1.59
1.66
1.69
1.73
1.85
1.99
2.28
2.45
2.62
2.80
3.03
3.06
3.09
47.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
45.9
43.0
42.6
43.0
43.0
43.0
43.0
43.0
43.0
43.0
43.0
43.0
43.0
43.0
43.0
43.0
43.0
43.0
43.0
43.0
42.6
42.2
42.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
38.2
Capacity rated using ISO 5151—Test Rating Standard for Non-Ducted Heat Pumps.
Cooling mode stable operation is ensured when the outdoor ambient dry-bulb temperature is between 23°F and 115°F.
Rapid cooling operation is stable at indoor temperatures up to 80°F DB.
Power Input (PI) in kW and includes compressor(s) and outdoor fan motor(s).
Rated with an equivalent piping length of 24.6 ft. and no change in elevation between the indoor and outdoor unit.
MBh = Net Capacity
R410A, 60 Hz
30
|
PERFORMANCE DATA
1.70
1.79
1.87
1.96
2.13
2.21
2.27
2.32
2.42
2.48
2.68
2.95
3.18
3.68
3.96
4.25
4.56
5.10
5.48
5.53
1.74
1.78
1.82
1.85
1.93
1.96
2.01
2.05
2.15
2.19
2.30
2.53
2.73
3.15
3.38
3.63
3.89
4.21
4.25
4.29
1.56
1.59
1.62
1.65
1.72
1.75
1.76
1.80
1.88
1.92
1.96
2.15
2.31
2.66
2.86
3.06
3.28
3.55
3.58
3.62
53.5
53.5
53.5
53.5
53.5
53.5
53.5
53.5
53.5
53.5
53.5
53.5
53.5
53.1
52.1
51.1
50.2
46.8
44.0
43.5
48.2
48.2
48.2
48.2
48.2
48.2
48.2
48.2
48.2
48.2
48.2
48.2
48.2
48.2
48.2
48.2
48.2
47.3
45.2
45.2
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
2.21
2.25
2.30
2.34
2.42
2.47
2.55
2.61
2.72
2.87
3.11
3.43
3.70
4.24
4.42
4.59
4.77
5.23
5.57
5.62
2.00
2.03
2.07
2.11
2.18
2.22
2.26
2.31
2.41
2.46
2.66
2.93
3.16
3.65
3.93
4.22
4.45
4.86
4.90
4.94
1.75
1.78
1.81
1.84
1.90
1.93
1.98
2.01
2.10
2.15
2.25
2.47
2.66
3.07
3.30
3.54
3.79
4.11
4.14
4.17
MBh
56.9
56.9
56.9
56.9
56.9
56.9
56.9
56.9
56.9
56.9
56.9
56.4
55.4
53.5
52.6
52.1
51.1
49.2
46.8
46.4
51.2
51.2
51.2
51.2
51.2
51.2
51.2
51.2
51.2
51.2
51.2
51.2
51.2
51.2
51.2
50.8
49.9
48.2
47.3
47.3
45.5
45.5
45.5
45.5
45.5
45.5
45.5
45.5
45.5
45.5
45.5
45.5
45.5
45.5
45.5
45.5
45.5
45.5
45.5
45.5
73
PI
2.38
2.42
2.47
2.51
2.59
2.64
2.74
2.80
2.92
3.15
3.41
3.72
3.90
4.25
4.44
4.62
4.80
5.31
5.78
5.83
2.18
2.22
2.25
2.29
2.36
2.40
2.43
2.48
2.58
2.69
2.91
3.21
3.46
4.01
4.31
4.58
4.76
4.95
4.98
5.02
1.90
1.93
1.96
1.99
2.05
2.08
2.12
2.16
2.25
2.30
2.45
2.70
2.91
3.36
3.61
3.88
4.16
4.50
4.53
4.57
MBh
61.7
61.7
61.7
61.7
61.7
61.7
61.7
61.7
60.2
59.3
58.3
57.4
56.4
54.5
53.5
53.1
52.1
50.2
48.8
48.2
55.5
55.5
55.5
55.5
55.5
55.5
55.5
55.5
55.5
55.5
55.5
55.5
55.1
53.3
52.5
51.6
50.8
49.0
48.2
48.2
49.3
49.3
49.3
49.3
49.3
49.3
49.3
49.3
49.3
49.3
49.3
49.3
49.3
49.3
49.3
49.3
49.3
48.6
48.6
48.6
76
PI
2.72
2.76
2.81
2.85
2.93
2.98
3.03
3.09
3.17
3.34
3.52
3.75
3.92
4.28
4.47
4.65
4.83
5.48
5.91
5.96
2.43
2.47
2.51
2.54
2.62
2.65
2.68
2.74
2.86
3.06
3.31
3.65
3.89
4.25
4.43
4.61
4.79
4.95
4.98
5.02
2.11
2.14
2.18
2.21
2.27
2.30
2.34
2.39
2.49
2.57
2.78
3.06
3.29
3.82
4.11
4.41
4.74
4.99
5.02
5.07
Due to differences in test method and procedures, capacity data values provided in
these tables may differ from certified performance information published by AHRI or
other standardized testing agencies. AHRI testing protocol sets the volume of air
flowing over the coil at 444 CFM/ton and limits the number of indoor units connected to
the system being tested. LG conducts capacity tests using airflow rates and limits the
number of indoor units per system as stated in Table 4 (a and b) on pages 17–18,
Table 5 on page 19, and Table 14 on page 56.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PERFORMANCE DATA
Cooling Capacity—4.0 Ton
Table 13c: ARUN047GS2 Heat Pump—Nominal Cooling Capacity
Combination
Ratio (%)
70
50
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
MBh
22.1
22.1
22.1
22.1
22.1
22.1
22.1
22.1
22.1
22.1
22.1
22.1
22.1
22.1
22.1
22.1
22.1
22.1
22.1
22.1
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
18.9
15.8
15.8
15.8
15.8
15.8
15.8
15.8
15.8
15.8
15.8
15.8
15.8
15.8
15.8
15.8
15.8
15.8
15.8
15.8
15.8
57
PI
0.81
0.84
0.87
0.89
0.94
0.97
0.99
1.00
1.04
1.06
1.08
1.10
1.14
1.30
1.39
1.48
1.57
1.70
1.73
1.74
0.68
0.70
0.73
0.77
0.79
0.79
0.80
0.82
0.85
0.86
0.88
0.90
0.93
1.13
1.13
1.20
1.28
1.39
1.41
1.42
0.53
0.55
0.56
0.58
0.61
0.63
0.64
0.65
0.68
0.69
0.70
0.72
0.74
0.90
0.90
0.96
1.02
1.11
1.12
1.13
MBh
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
22.9
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
19.1
61
PI
1.02
1.04
1.07
1.09
1.14
1.17
1.19
1.21
1.26
1.28
1.31
1.34
1.43
1.64
1.75
1.87
1.99
2.14
2.16
2.18
0.85
0.87
0.89
0.93
0.95
0.95
0.97
0.99
1.03
1.05
1.07
1.09
1.16
1.43
1.43
1.52
1.62
1.74
1.76
1.78
0.66
0.68
0.69
0.71
0.74
0.76
0.77
0.79
0.82
0.83
0.85
0.87
0.93
1.14
1.14
1.21
1.29
1.39
1.40
1.42
MBh
30.1
30.1
30.1
30.1
30.1
30.1
30.1
30.1
30.1
30.1
30.1
30.1
30.1
30.1
30.1
30.1
30.1
30.1
30.1
30.1
25.8
25.8
25.8
25.8
25.8
25.8
25.8
25.8
25.8
25.8
25.8
25.8
25.8
25.8
25.8
25.8
25.8
25.8
25.8
25.8
21.5
21.5
21.5
21.5
21.5
21.5
21.5
21.5
21.5
21.5
21.5
21.5
21.5
21.5
21.5
21.5
21.5
21.5
21.5
21.5
64
Indoor Air Temperature (°F) WB
67
70
PI
MBh
PI
MBh
PI
1.17
1.20
1.22
1.25
1.30
1.32
1.35
1.38
1.43
1.46
1.50
1.55
1.67
1.92
2.05
2.19
2.34
2.52
2.54
2.57
0.97
1.00
1.02
1.06
1.08
1.08
1.10
1.12
1.17
1.19
1.22
1.27
1.36
1.67
1.67
1.79
1.91
2.05
2.07
2.09
0.76
0.78
0.79
0.81
0.84
0.86
0.88
0.89
0.93
0.95
0.97
1.01
1.08
1.33
1.33
1.42
1.52
1.64
1.65
1.67
33.5
33.5
33.5
33.5
33.5
33.5
33.5
33.5
33.5
33.5
33.5
33.5
33.5
33.5
33.5
33.5
33.5
33.5
33.5
33.5
28.7
28.7
28.7
28.7
28.7
28.7
28.7
28.7
28.7
28.7
28.7
28.7
28.7
28.7
28.7
28.7
28.7
28.7
28.7
28.7
23.9
23.9
23.9
23.9
23.9
23.9
23.9
23.9
23.9
23.9
23.9
23.9
23.9
23.9
23.9
23.9
23.9
23.9
23.9
23.9
Capacity rated using ISO 5151—Test Rating Standard for Non-Ducted Heat Pumps.
Cooling mode stable operation is ensured when the outdoor ambient dry-bulb temperature is between 23°F and 115°F.
Rapid cooling operation is stable at indoor temperatures up to 80°F DB.
Power Input (PI) in kW and includes compressor(s) and outdoor fan motor(s).
Rated with an equivalent piping length of 24.6 ft. and no change in elevation between the indoor and outdoor unit.
MBh = Net Capacity
R410A, 60 Hz
1.35
1.37
1.40
1.42
1.48
1.50
1.52
1.55
1.62
1.65
1.69
1.79
1.93
2.22
2.37
2.54
2.72
2.93
2.95
2.98
1.12
1.14
1.16
1.20
1.22
1.22
1.24
1.27
1.32
1.35
1.37
1.46
1.57
1.93
1.93
2.07
2.22
2.38
2.40
2.43
0.88
0.89
0.91
0.93
0.96
0.98
0.99
1.01
1.05
1.07
1.10
1.17
1.25
1.54
1.54
1.65
1.77
1.90
1.92
1.94
37.5
37.5
37.5
37.5
37.5
37.5
37.5
37.5
37.5
37.5
37.5
37.5
37.5
37.5
37.5
37.5
37.5
37.5
37.5
37.5
32.1
32.1
32.1
32.1
32.1
32.1
32.1
32.1
32.1
32.1
32.1
32.1
32.1
32.1
32.1
32.1
32.1
32.1
32.1
32.1
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
26.8
1.53
1.55
1.58
1.60
1.65
1.68
1.70
1.74
1.81
1.84
1.89
2.05
2.21
2.54
2.73
2.92
3.13
3.38
3.41
3.44
1.26
1.29
1.31
1.35
1.37
1.37
1.39
1.41
1.47
1.50
1.54
1.67
1.80
2.22
2.22
2.38
2.55
2.76
2.78
2.80
0.99
1.01
1.02
1.04
1.07
1.09
1.11
1.13
1.18
1.20
1.23
1.33
1.43
1.77
1.77
1.90
2.03
2.20
2.21
2.23
MBh
39.8
39.8
39.8
39.8
39.8
39.8
39.8
39.8
39.8
39.8
39.8
39.8
39.8
39.8
39.8
39.8
39.8
39.8
39.8
39.8
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
28.4
73
PI
1.63
1.65
1.68
1.70
1.76
1.78
1.82
1.86
1.94
1.98
2.03
2.23
2.40
2.77
2.97
3.19
3.42
3.69
3.71
3.75
1.35
1.37
1.39
1.43
1.45
1.45
1.48
1.51
1.58
1.61
1.65
1.82
1.96
2.42
2.42
2.60
2.78
3.01
3.03
2.80
1.06
1.07
1.09
1.11
1.14
1.16
1.18
1.21
1.26
1.29
1.32
1.45
1.56
1.93
1.93
2.07
2.22
2.40
2.41
2.23
MBh
43.2
43.2
43.2
43.2
43.2
43.2
43.2
43.2
43.2
43.2
43.2
43.2
43.2
43.2
43.2
43.2
43.2
43.2
43.2
43.2
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
30.8
30.8
30.8
30.8
30.8
30.8
30.8
30.8
30.8
30.8
30.8
30.8
30.8
30.8
30.8
30.8
30.8
30.8
30.8
30.8
76
PI
1.83
1.86
1.88
1.91
1.96
1.98
2.00
2.05
2.14
2.18
2.29
2.52
2.71
3.13
3.36
3.61
3.87
4.17
4.20
4.23
1.51
1.53
1.55
1.60
1.62
1.62
1.63
1.67
1.74
1.78
1.87
2.05
2.21
2.74
2.74
2.94
3.16
3.40
3.42
3.45
1.19
1.21
1.22
1.24
1.27
1.29
1.30
1.33
1.39
1.42
1.49
1.64
1.76
2.18
2.18
2.35
2.52
2.71
2.73
2.75
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
60
Outdoor
Air Temp
(°F) DB
Due to differences in test method and procedures, capacity data values provided in
these tables may differ from certified performance information published by AHRI or
other standardized testing agencies. AHRI testing protocol sets the volume of air
flowing over the coil at 444 CFM/ton and limits the number of indoor units connected to
the system being tested. LG conducts capacity tests using airflow rates and limits the
number of indoor units per system as stated in Table 4 (a and b) on pages 17–18,
Table 5 on page 19, and Table 14 on page 56.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PERFORMANCE DATA
|
31
PERFORMANCE DATA
Cooling Capacity—4.4 Ton
Table 14a: ARUN053GS2 Heat Pump—Nominal Cooling Capacity
Combination
Ratio (%)
Performance Data
130
120
110
Outdoor
Air Temp
(°F) DB
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
MBh
45.3
45.3
45.3
45.3
45.3
45.3
45.3
45.3
45.3
45.3
45.3
45.3
45.3
45.3
45.3
45.3
45.3
44.2
40.7
40.3
41.7
41.7
41.7
41.7
41.7
41.7
41.7
41.7
41.7
41.7
41.3
41.7
41.7
41.7
41.7
41.7
41.7
40.0
38.8
38.4
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
35.9
34.7
34.4
57
PI
2.17
2.20
2.23
2.26
2.32
2.35
2.43
2.48
2.58
2.64
2.73
2.99
3.22
3.72
3.99
4.28
4.59
5.01
5.13
5.17
1.98
2.01
2.04
2.07
2.13
2.16
2.22
2.26
2.36
2.41
2.56
2.68
2.89
3.32
3.57
3.82
4.09
4.49
4.91
4.96
1.79
1.82
1.85
1.88
1.94
1.97
2.01
2.06
2.14
2.19
2.24
2.38
2.56
2.95
3.16
3.39
3.62
3.99
4.41
4.45
MBh
54.6
54.6
54.6
54.6
54.6
54.6
54.6
54.6
54.6
54.6
54.6
54.6
54.6
54.6
54.6
54.6
54.6
51.7
48.3
47.8
50.8
50.8
50.8
50.8
50.8
50.8
50.8
50.8
50.8
50.8
50.3
50.8
50.8
50.8
50.8
50.8
50.8
47.4
45.1
44.6
46.5
46.5
46.5
46.5
46.5
46.5
46.5
46.5
46.5
46.5
46.5
46.5
46.5
46.5
46.5
46.5
46.5
41.5
39.2
38.8
61
PI
2.77
2.80
2.83
2.86
2.93
2.96
3.04
3.10
3.23
3.34
3.61
3.97
4.28
4.96
5.33
5.73
6.15
6.51
6.63
6.70
2.52
2.55
2.58
2.61
2.67
2.70
2.77
2.83
2.95
3.01
3.34
3.53
3.81
4.40
4.73
5.08
5.45
5.99
6.41
6.47
2.26
2.29
2.32
2.35
2.41
2.44
2.51
2.56
2.67
2.73
2.84
3.12
3.36
3.88
4.16
4.47
4.79
5.36
5.78
5.83
MBh
62.2
62.2
62.2
62.2
62.2
62.2
62.2
62.2
62.2
62.2
62.2
62.2
61.0
59.3
58.1
57.6
56.4
52.9
49.4
48.9
57.7
57.7
57.7
57.7
57.7
57.7
57.7
57.7
57.7
57.7
57.1
57.7
57.7
57.7
57.1
56.5
55.4
50.8
46.8
46.3
52.7
52.7
52.7
52.7
52.7
52.7
52.7
52.7
52.7
52.7
52.7
52.7
52.7
52.7
52.7
52.7
52.7
48.8
44.8
44.3
64
Indoor Air Temperature (°F) WB
67
70
PI
MBh
PI
MBh
PI
3.26
3.29
3.32
3.35
3.41
3.44
3.51
3.58
3.74
4.02
4.35
4.80
5.05
5.51
5.75
5.98
6.22
6.75
7.00
7.06
2.94
2.97
3.00
3.03
3.09
3.12
3.20
3.27
3.41
3.57
4.01
4.25
4.58
5.31
5.71
5.94
6.18
6.53
6.95
7.01
2.68
2.71
2.74
2.77
2.83
2.86
2.89
2.96
3.08
3.15
3.39
3.74
4.02
4.66
5.01
5.38
5.77
6.31
7.32
7.39
69.2
69.2
69.2
69.2
69.2
69.2
69.2
69.2
66.9
65.7
65.1
63.9
62.8
60.5
59.9
58.1
57.6
54.6
51.2
50.6
63.9
63.9
63.9
63.9
63.9
63.9
63.9
63.9
63.9
63.9
63.3
62.8
61.7
59.4
58.8
57.1
56.5
53.7
50.2
49.7
58.8
58.8
58.8
58.8
58.8
58.8
58.8
58.8
58.8
58.8
58.8
58.8
58.8
58.8
57.7
56.0
55.5
52.7
49.3
48.8
Capacity rated using ISO 5151—Test Rating Standard for Non-Ducted Heat Pumps.
Cooling mode stable operation is ensured when the outdoor ambient dry-bulb temperature is between 23°F and 115°F.
Rapid cooling operation is stable at indoor temperatures up to 80°F DB.
Power Input (PI) in kW and includes compressor(s) and outdoor fan motor(s).
Rated with an equivalent piping length of 24.6 ft. and no change in elevation between the indoor and outdoor unit.
MBh = Net Capacity
R410A, 60 Hz
32
|
PERFORMANCE DATA
3.74
3.77
3.80
3.83
3.89
3.92
3.97
3.99
4.11
4.34
4.57
4.86
5.09
5.56
5.80
6.03
6.27
7.24
7.78
7.85
3.42
3.45
3.48
3.51
3.57
3.60
3.64
3.72
3.88
4.21
4.72
4.83
5.06
5.53
5.76
5.99
6.23
7.19
7.73
7.80
3.04
3.07
3.10
3.13
3.19
3.22
3.29
3.36
3.51
3.70
4.00
4.41
4.75
5.49
5.72
5.95
6.19
7.15
7.68
7.75
71.5
71.5
71.5
71.5
71.5
71.5
71.5
70.3
68.6
67.4
66.3
65.1
63.9
62.2
61.0
59.9
59.3
55.8
52.3
51.8
70.2
70.2
70.2
70.2
70.2
70.2
70.2
69.1
67.4
66.2
64.4
63.9
62.8
61.1
59.9
58.8
58.2
54.8
51.4
50.8
65.0
65.0
65.0
65.0
65.0
65.0
65.0
65.0
65.0
65.0
63.9
62.8
61.6
60.0
58.8
57.7
56.6
53.8
50.4
49.9
3.62
3.65
3.68
3.71
3.77
3.80
3.88
3.89
4.14
4.37
4.61
4.90
5.14
5.61
5.85
6.09
6.33
7.54
8.02
8.10
3.72
3.75
3.78
3.81
3.87
3.90
3.95
3.97
4.12
4.35
4.76
4.87
5.10
5.57
5.81
6.04
6.29
7.49
7.97
8.04
3.45
3.48
3.51
3.54
3.60
3.63
3.69
3.78
3.97
4.30
4.55
4.84
5.07
5.54
5.76
6.00
6.23
7.44
7.92
7.99
MBh
72.1
72.1
72.1
72.1
72.1
72.1
72.1
71.5
69.2
68.0
67.4
66.3
65.1
62.8
62.2
61.0
59.9
57.6
55.8
55.2
70.8
70.8
70.8
70.8
70.8
70.8
70.8
70.2
67.9
67.4
65.6
65.1
63.9
61.7
61.1
59.9
58.8
56.5
54.8
54.3
68.9
68.9
68.9
68.9
68.9
68.9
68.9
68.9
66.7
65.6
65.0
63.3
62.8
60.5
59.4
58.8
57.7
55.5
53.8
53.2
73
PI
3.53
3.56
3.59
3.62
3.71
3.74
3.78
3.79
4.16
4.40
4.63
4.93
5.16
5.64
5.88
6.13
6.36
7.66
8.32
8.40
3.69
3.72
3.75
3.78
3.84
3.87
3.88
3.89
4.14
4.37
4.78
4.89
5.13
5.60
5.84
6.08
6.32
7.61
8.27
8.35
3.75
3.78
3.81
3.84
3.90
3.93
3.97
3.98
4.11
4.34
4.57
4.86
5.09
5.56
5.80
6.03
6.27
7.56
8.22
8.29
MBh
73.8
73.8
73.8
73.8
73.8
73.8
73.8
72.7
70.9
69.8
68.6
67.4
66.3
64.5
63.4
62.8
61.6
58.7
57.0
56.4
72.5
72.5
72.5
72.5
72.5
72.5
72.5
71.4
69.1
68.5
66.7
66.2
65.1
63.4
62.2
61.1
59.9
57.7
55.9
55.4
71.2
71.2
71.2
71.2
71.2
71.2
71.2
70.1
67.8
67.2
66.1
65.0
63.9
61.6
61.1
60.0
58.8
56.6
54.9
54.3
76
PI
3.44
3.47
3.50
3.53
3.59
3.62
3.69
3.72
4.19
4.43
4.66
4.96
5.20
5.69
5.93
6.18
6.42
7.78
8.50
8.58
3.54
3.57
3.60
3.63
3.69
3.72
3.78
3.79
4.16
4.40
4.81
4.93
5.17
5.64
5.88
6.13
6.36
7.73
8.45
8.53
3.63
3.66
3.69
3.72
3.78
3.81
3.88
3.89
4.14
4.37
4.60
4.89
5.13
5.60
5.83
6.08
6.32
7.68
8.40
8.47
Due to differences in test method and procedures, capacity data values provided in
these tables may differ from certified performance information published by AHRI or
other standardized testing agencies. AHRI testing protocol sets the volume of air
flowing over the coil at 444 CFM/ton and limits the number of indoor units connected to
the system being tested. LG conducts capacity tests using airflow rates and limits the
number of indoor units per system as stated in Table 4 (a and b) on pages 17–18,
Table 5 on page 19, and Table 14 on page 56.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PERFORMANCE DATA
Cooling Capacity—4.4 Ton
Table 14b: ARUN053GS2 Heat Pump—Nominal Cooling Capacity
Combination
Ratio (%)
100
80
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
MBh
34.9
34.9
34.9
34.9
34.9
34.9
34.9
34.9
34.9
34.9
34.9
34.9
34.9
34.9
34.9
34.9
34.9
34.9
33.9
33.5
31.4
31.4
31.4
31.4
31.4
31.4
31.4
31.4
31.4
31.4
31.4
31.4
31.4
31.4
31.4
31.4
31.4
31.4
31.4
31.4
27.9
27.9
27.9
27.9
27.9
27.9
27.9
27.9
27.9
27.9
27.9
27.9
27.9
27.9
27.9
27.9
27.9
27.9
27.9
27.9
57
PI
1.38
1.43
1.49
1.54
1.65
1.71
1.82
1.86
1.93
1.97
2.01
2.11
2.26
2.60
2.78
2.97
3.18
3.58
3.97
4.00
1.32
1.37
1.41
1.46
1.55
1.60
1.63
1.67
1.73
1.76
1.80
1.85
1.98
2.27
2.43
2.59
2.77
3.01
3.06
3.08
1.15
1.19
1.23
1.27
1.35
1.39
1.45
1.47
1.53
1.56
1.60
1.63
1.72
1.96
2.10
2.24
2.39
2.58
2.62
2.64
MBh
42.3
42.3
42.3
42.3
42.3
42.3
42.3
42.3
42.3
42.3
42.3
42.3
42.3
42.3
42.3
42.3
42.3
40.2
38.1
37.7
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
33.9
33.9
33.9
33.9
33.9
33.9
33.9
33.9
33.9
33.9
33.9
33.9
33.9
33.9
33.9
33.9
33.9
33.9
33.9
33.9
61
PI
1.82
1.87
1.93
1.98
2.09
2.15
2.25
2.30
2.40
2.45
2.50
2.73
2.94
3.39
3.64
3.90
4.17
4.85
5.23
5.28
1.65
1.70
1.74
1.79
1.88
1.93
2.01
2.05
2.13
2.17
2.22
2.37
2.55
2.93
3.14
3.36
3.60
3.91
3.96
3.99
1.47
1.51
1.55
1.59
1.67
1.71
1.77
1.80
1.87
1.91
1.95
2.03
2.19
2.51
2.68
2.87
3.07
3.34
3.38
3.41
MBh
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
45.5
42.3
41.9
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.8
42.4
41.9
41.9
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
38.1
64
Indoor Air Temperature (°F) WB
67
70
PI
MBh
PI
MBh
PI
2.09
2.15
2.20
2.26
2.37
2.48
2.59
2.65
2.76
2.82
2.96
3.25
3.50
4.05
4.35
4.66
5.01
5.73
6.67
6.73
1.98
2.02
2.07
2.12
2.21
2.26
2.30
2.35
2.45
2.50
2.56
2.81
3.02
3.48
3.74
4.00
4.29
4.66
4.71
4.75
1.75
1.79
1.83
1.87
1.95
1.99
2.02
2.07
2.15
2.19
2.24
2.40
2.57
2.96
3.17
3.40
3.64
3.93
3.97
4.01
52.9
52.9
52.9
52.9
52.9
52.9
52.9
52.9
52.9
52.9
52.9
52.9
52.9
52.9
52.9
52.9
52.9
50.8
47.6
47.1
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.6
47.1
46.7
46.7
42.3
42.3
42.3
42.3
42.3
42.3
42.3
42.3
42.3
42.3
42.3
42.3
42.3
42.3
42.3
42.3
42.3
42.3
42.3
42.3
Capacity rated using ISO 5151—Test Rating Standard for Non-Ducted Heat Pumps.
Cooling mode stable operation is ensured when the outdoor ambient dry-bulb temperature is between 23°F and 115°F.
Rapid cooling operation is stable at indoor temperatures up to 80°F DB.
Power Input (PI) in kW and includes compressor(s) and outdoor fan motor(s).
Rated with an equivalent piping length of 24.6 ft. and no change in elevation between the indoor and outdoor unit.
MBh = Net Capacity
R410A, 60 Hz
2.20
2.31
2.42
2.53
2.76
2.87
2.95
3.01
3.14
3.21
3.48
3.83
4.12
4.77
5.13
5.51
5.92
6.61
7.11
7.17
2.26
2.31
2.35
2.40
2.50
2.54
2.61
2.66
2.78
2.84
2.99
3.28
3.53
4.09
4.39
4.71
5.05
5.46
5.51
5.56
2.03
2.07
2.11
2.14
2.22
2.26
2.29
2.33
2.43
2.48
2.54
2.78
2.99
3.45
3.71
3.97
4.25
4.61
4.65
4.69
59.2
59.2
59.2
59.2
59.2
59.2
59.2
59.2
59.2
59.2
59.2
59.2
59.2
58.7
57.7
56.6
55.5
51.8
48.7
48.2
53.3
53.3
53.3
53.3
53.3
53.3
53.3
53.3
53.3
53.3
53.3
53.3
53.3
53.3
53.3
53.3
53.3
52.4
50.0
50.0
47.4
47.4
47.4
47.4
47.4
47.4
47.4
47.4
47.4
47.4
47.4
47.4
47.4
47.4
47.4
47.4
47.4
47.4
47.4
47.4
2.87
2.92
2.98
3.03
3.14
3.20
3.31
3.38
3.53
3.72
4.03
4.44
4.79
5.49
5.73
5.95
6.19
6.78
7.22
7.28
2.59
2.64
2.68
2.73
2.83
2.87
2.93
2.99
3.12
3.19
3.45
3.79
4.09
4.73
5.09
5.47
5.77
6.30
6.36
6.41
2.26
2.30
2.34
2.38
2.46
2.50
2.56
2.61
2.73
2.78
2.91
3.20
3.44
3.98
4.28
4.59
4.92
5.32
5.36
5.41
MBh
63.0
63.0
63.0
63.0
63.0
63.0
63.0
63.0
63.0
63.0
63.0
62.4
61.4
59.2
58.2
57.7
56.6
54.5
51.8
51.3
56.7
56.7
56.7
56.7
56.7
56.7
56.7
56.7
56.7
56.7
56.7
56.7
56.7
56.7
56.7
56.2
55.2
53.3
52.4
52.4
50.4
50.4
50.4
50.4
50.4
50.4
50.4
50.4
50.4
50.4
50.4
50.4
50.4
50.4
50.4
50.4
50.4
50.4
50.4
50.4
73
PI
3.09
3.14
3.20
3.25
3.36
3.42
3.55
3.63
3.79
4.09
4.42
4.82
5.05
5.52
5.75
5.99
6.22
6.89
7.49
7.56
2.83
2.87
2.92
2.97
3.06
3.11
3.15
3.21
3.35
3.49
3.78
4.16
4.48
5.20
5.59
5.94
6.17
6.42
6.45
6.51
2.46
2.50
2.54
2.58
2.66
2.70
2.75
2.80
2.92
2.99
3.18
3.50
3.77
4.36
4.68
5.03
5.39
5.84
5.88
5.93
MBh
68.2
68.2
68.2
68.2
68.2
68.2
68.2
68.2
66.7
65.6
64.5
63.5
62.4
60.3
59.2
58.7
57.7
55.5
54.0
53.4
61.4
61.4
61.4
61.4
61.4
61.4
61.4
61.4
61.4
61.4
61.4
61.4
60.9
59.0
58.1
57.1
56.2
54.3
53.3
53.3
54.6
54.6
54.6
54.6
54.6
54.6
54.6
54.6
54.6
54.6
54.6
54.6
54.6
54.6
54.6
54.6
54.6
53.7
53.7
53.7
76
PI
3.53
3.58
3.64
3.69
3.80
3.86
3.93
4.00
4.11
4.33
4.56
4.86
5.08
5.55
5.79
6.02
6.27
7.11
7.66
7.73
3.16
3.20
3.25
3.30
3.39
3.44
3.48
3.55
3.71
3.97
4.30
4.73
5.05
5.51
5.75
5.97
6.21
6.42
6.45
6.51
2.74
2.78
2.82
2.86
2.94
2.98
3.03
3.10
3.23
3.33
3.60
3.97
4.27
4.95
5.33
5.72
6.14
6.47
6.51
6.57
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
90
Outdoor
Air Temp
(°F) DB
Due to differences in test method and procedures, capacity data values provided in
these tables may differ from certified performance information published by AHRI or
other standardized testing agencies. AHRI testing protocol sets the volume of air
flowing over the coil at 444 CFM/ton and limits the number of indoor units connected to
the system being tested. LG conducts capacity tests using airflow rates and limits the
number of indoor units per system as stated in Table 4 (a and b) on pages 17–18,
Table 5 on page 19, and Table 14 on page 56.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PERFORMANCE DATA
|
33
PERFORMANCE DATA
Cooling Capacity—4.4 Ton
Table 14c: ARUN053GS2 Heat Pump—Nominal Cooling Capacity
Combination
Ratio (%)
Performance Data
70
60
50
Outdoor
Air Temp
(°F) DB
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
23
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
MBh
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
24.4
20.9
20.9
20.9
20.9
20.9
20.9
20.9
20.9
20.9
20.9
20.9
20.9
20.9
20.9
20.9
20.9
20.9
20.9
20.9
20.9
17.5
17.5
17.5
17.5
17.5
17.5
17.5
17.5
17.5
17.5
17.5
17.5
17.5
17.5
17.5
17.5
17.5
17.5
17.5
17.5
57
PI
1.06
1.09
1.12
1.15
1.22
1.25
1.28
1.30
1.35
1.37
1.40
1.43
1.48
1.68
1.80
1.91
2.04
2.21
2.24
2.26
0.89
0.91
0.94
0.99
1.02
1.02
1.04
1.06
1.10
1.12
1.14
1.17
1.21
1.47
1.47
1.56
1.66
1.80
1.83
1.85
0.69
0.71
0.73
0.75
0.79
0.81
0.83
0.85
0.88
0.89
0.91
0.93
0.96
1.17
1.17
1.24
1.33
1.44
1.46
1.47
MBh
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
25.4
25.4
25.4
25.4
25.4
25.4
25.4
25.4
25.4
25.4
25.4
25.4
25.4
25.4
25.4
25.4
25.4
25.4
25.4
25.4
21.2
21.2
21.2
21.2
21.2
21.2
21.2
21.2
21.2
21.2
21.2
21.2
21.2
21.2
21.2
21.2
21.2
21.2
21.2
21.2
61
PI
1.32
1.35
1.39
1.42
1.48
1.52
1.54
1.57
1.63
1.67
1.70
1.74
1.85
2.12
2.27
2.42
2.58
2.77
2.80
2.82
1.10
1.13
1.16
1.21
1.24
1.24
1.26
1.28
1.33
1.36
1.38
1.42
1.51
1.85
1.85
1.97
2.10
2.26
2.28
2.30
0.86
0.88
0.90
0.92
0.96
0.99
1.00
1.02
1.06
1.08
1.10
1.13
1.20
1.47
1.47
1.57
1.68
1.80
1.82
1.84
MBh
33.3
33.3
33.3
33.3
33.3
33.3
33.3
33.3
33.3
33.3
33.3
33.3
33.3
33.3
33.3
33.3
33.3
33.3
33.3
33.3
28.6
28.6
28.6
28.6
28.6
28.6
28.6
28.6
28.6
28.6
28.6
28.6
28.6
28.6
28.6
28.6
28.6
28.6
28.6
28.6
23.8
23.8
23.8
23.8
23.8
23.8
23.8
23.8
23.8
23.8
23.8
23.8
23.8
23.8
23.8
23.8
23.8
23.8
23.8
23.8
64
Indoor Air Temperature (°F) WB
67
70
PI
MBh
PI
MBh
PI
1.52
1.55
1.58
1.62
1.68
1.72
1.75
1.79
1.86
1.89
1.94
2.01
2.16
2.48
2.66
2.84
3.04
3.27
3.30
3.33
1.26
1.29
1.32
1.37
1.40
1.40
1.43
1.46
1.51
1.54
1.58
1.64
1.76
2.16
2.16
2.31
2.48
2.66
2.69
2.71
0.99
1.01
1.03
1.05
1.09
1.11
1.14
1.16
1.21
1.23
1.26
1.31
1.40
1.73
1.73
1.85
1.97
2.12
2.14
2.16
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
37.0
31.7
31.7
31.7
31.7
31.7
31.7
31.7
31.7
31.7
31.7
31.7
31.7
31.7
31.7
31.7
31.7
31.7
31.7
31.7
31.7
26.5
26.5
26.5
26.5
26.5
26.5
26.5
26.5
26.5
26.5
26.5
26.5
26.5
26.5
26.5
26.5
26.5
26.5
26.5
26.5
Capacity rated using ISO 5151—Test Rating Standard for Non-Ducted Heat Pumps.
Cooling mode stable operation is ensured when the outdoor ambient dry-bulb temperature is between 23°F and 115°F.
Rapid cooling operation is stable at indoor temperatures up to 80°F DB.
Power Input (PI) in kW and includes compressor(s) and outdoor fan motor(s).
Rated with an equivalent piping length of 24.6 ft. and no change in elevation between the indoor and outdoor unit.
MBh = Net Capacity
R410A, 60 Hz
34
|
PERFORMANCE DATA
1.75
1.78
1.81
1.85
1.91
1.95
1.98
2.01
2.10
2.14
2.19
2.33
2.50
2.87
3.08
3.30
3.53
3.79
3.83
3.86
1.45
1.48
1.51
1.56
1.59
1.59
1.61
1.64
1.71
1.75
1.78
1.90
2.04
2.51
2.51
2.69
2.87
3.09
3.12
3.15
1.14
1.16
1.18
1.20
1.24
1.26
1.28
1.31
1.36
1.39
1.42
1.51
1.62
2.00
2.00
2.14
2.29
2.46
2.49
2.51
41.5
41.5
41.5
41.5
41.5
41.5
41.5
41.5
41.5
41.5
41.5
41.5
41.5
41.5
41.5
41.5
41.5
41.5
41.5
41.5
35.5
35.5
35.5
35.5
35.5
35.5
35.5
35.5
35.5
35.5
35.5
35.5
35.5
35.5
35.5
35.5
35.5
35.5
35.5
35.5
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
29.6
1.98
2.01
2.04
2.08
2.14
2.18
2.21
2.25
2.35
2.39
2.45
2.66
2.86
3.29
3.53
3.79
4.05
4.39
4.42
4.46
1.64
1.67
1.69
1.75
1.77
1.77
1.80
1.83
1.91
1.95
1.99
2.16
2.33
2.88
2.88
3.09
3.30
3.57
3.60
3.63
1.29
1.31
1.33
1.35
1.39
1.41
1.43
1.46
1.52
1.55
1.59
1.73
1.86
2.30
2.30
2.46
2.63
2.85
2.87
2.90
MBh
44.1
44.1
44.1
44.1
44.1
44.1
44.1
44.1
44.1
44.1
44.1
44.1
44.1
44.1
44.1
44.1
44.1
44.1
44.1
44.1
37.8
37.8
37.8
37.8
37.8
37.8
37.8
37.8
37.8
37.8
37.8
37.8
37.8
37.8
37.8
37.8
37.8
37.8
37.8
37.8
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
73
PI
2.11
2.14
2.18
2.21
2.28
2.31
2.36
2.41
2.51
2.57
2.63
2.89
3.11
3.59
3.85
4.13
4.43
4.78
4.82
4.86
1.75
1.77
1.80
1.85
1.88
1.88
1.92
1.96
2.05
2.09
2.14
2.36
2.54
3.14
3.14
3.37
3.61
3.90
3.92
3.63
1.37
1.39
1.41
1.44
1.48
1.50
1.53
1.56
1.63
1.67
1.71
1.88
2.02
2.50
2.50
2.68
2.88
3.11
3.13
2.90
MBh
47.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
47.8
40.9
40.9
40.9
40.9
40.9
40.9
40.9
40.9
40.9
40.9
40.9
40.9
40.9
40.9
40.9
40.9
40.9
40.9
40.9
40.9
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
34.1
76
PI
2.37
2.41
2.44
2.47
2.54
2.57
2.60
2.66
2.77
2.83
2.97
3.27
3.51
4.06
4.36
4.68
5.02
5.41
5.44
5.49
1.96
1.99
2.02
2.07
2.10
2.10
2.12
2.16
2.26
2.30
2.42
2.66
2.86
3.55
3.55
3.82
4.09
4.41
4.43
4.47
1.54
1.56
1.59
1.61
1.65
1.67
1.69
1.73
1.80
1.84
1.93
2.12
2.28
2.83
2.83
3.04
3.26
3.51
3.54
3.57
Due to differences in test method and procedures, capacity data values provided in
these tables may differ from certified performance information published by AHRI or
other standardized testing agencies. AHRI testing protocol sets the volume of air
flowing over the coil at 444 CFM/ton and limits the number of indoor units connected to
the system being tested. LG conducts capacity tests using airflow rates and limits the
number of indoor units per system as stated in Table 4 (a and b) on pages 17–18,
Table 5 on page 19, and Table 14 on page 56.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PERFORMANCE DATA
Heating Capacity—3.0 Ton
Table 15a: ARUN036GS2 Heat Pump—Nominal Heating Capacity
Combination
Ratio (%)
130
110
Indoor Air Temperature (°F) DB
59
61
64
67
70
73
76
80
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
31.0
3.79
31.0
3.81
31.0
3.84
31.0
3.88
31.0
3.88
31.0
3.88
31.0
3.91
31.0
3.95
-4
-4.4
0
-0.4
32.6
3.85
32.1
3.85
31.5
3.85
31.5
3.88
31.5
3.88
31.5
3.91
31.5
3.91
31.5
3.91
5.0
4.5
35.2
3.85
35.2
3.88
35.2
3.91
35.2
3.91
35.2
3.95
35.2
3.95
35.2
3.98
35.2
4.01
3.98
10.0
9.0
36.8
3.91
36.8
3.91
36.8
3.91
36.8
3.95
36.8
3.95
36.8
3.98
36.8
3.98
36.8
15.0
14.0
39.9
3.95
39.9
3.95
39.9
3.95
39.3
3.98
39.3
3.98
39.3
4.01
39.3
4.01
39.3
4.01
20.0
19.0
41.5
3.98
41.5
3.98
41.5
3.98
41.5
4.01
41.5
4.01
41.5
4.01
41.5
4.05
41.5
4.08
25.0
23.0
44.7
4.00
44.7
4.00
44.7
4.00
44.7
4.04
44.7
4.04
44.7
4.08
44.7
4.08
44.7
4.08
30.0
28.0
45.6
4.04
45.6
4.04
45.6
4.04
45.6
4.08
45.6
4.08
45.6
4.12
45.6
4.12
45.6
4.12
35.0
32.0
47.8
4.08
47.8
4.08
47.8
4.08
47.8
4.12
47.8
4.12
47.8
4.16
47.8
4.08
47.8
4.00
40.0
36.0
49.9
4.04
49.9
4.08
49.9
4.12
49.9
4.16
49.9
4.16
49.9
4.08
49.9
3.96
49.9
3.84
45.0
41.0
52.5
4.08
51.9
4.12
51.4
4.16
51.4
4.06
51.4
4.04
51.4
3.96
51.4
3.79
51.4
3.64
47.0
43.0
54.1
4.24
53.5
4.20
53.0
4.16
53.0
4.12
52.5
4.08
53.0
3.79
52.5
3.67
51.9
3.55
50.0
46.0
55.1
4.21
55.1
4.08
55.1
3.96
55.1
3.79
55.1
3.75
55.1
3.67
52.5
3.51
50.0
3.35
55.0
51.0
56.7
4.13
56.7
3.96
56.7
3.79
56.7
3.67
56.7
3.63
55.7
3.51
52.5
3.39
49.6
3.27
60.0
56.0
60.4
3.92
59.8
3.79
59.3
3.67
59.3
3.51
57.7
3.47
55.7
3.39
52.5
3.26
49.6
3.15
-4
-4.4
30.2
3.76
30.2
3.78
30.2
3.80
30.2
3.84
30.2
3.84
30.2
3.85
30.2
3.88
30.2
3.91
0
-0.4
31.8
3.82
30.7
3.82
29.7
3.82
29.7
3.85
29.7
3.85
29.7
3.88
29.7
3.88
29.7
3.88
5.0
4.5
34.7
3.82
33.7
3.85
33.2
3.88
33.2
3.88
33.2
3.91
33.2
3.91
32.8
3.95
32.3
3.98
10.0
9.0
36.7
3.88
35.7
3.88
34.7
3.88
34.7
3.91
34.7
3.91
34.7
3.95
34.7
3.95
34.7
3.95
15.0
14.0
37.2
3.88
37.2
3.92
37.2
3.92
37.2
3.92
37.2
3.97
37.2
3.97
37.2
3.97
37.2
3.97
20.0
19.0
39.1
3.88
39.1
3.91
39.1
3.95
39.1
3.95
39.1
3.98
39.1
3.98
39.1
4.01
39.1
4.05
25.0
23.0
42.1
3.97
42.1
3.97
42.1
3.97
42.1
4.01
42.1
4.01
42.1
4.05
42.1
4.05
42.1
4.05
30.0
28.0
43.1
4.01
43.1
4.01
43.1
4.01
43.1
4.05
43.1
4.05
43.1
4.09
43.1
4.09
43.1
4.09
35.0
32.0
45.1
4.05
45.1
4.05
45.1
4.05
45.1
4.09
45.1
4.09
45.1
4.13
45.1
4.05
45.1
3.97
40.0
36.0
47.1
4.01
47.1
4.05
47.1
4.09
47.1
4.13
47.1
4.13
47.1
4.05
47.1
3.92
47.1
3.81
45.0
41.0
49.6
4.05
49.1
4.09
48.6
4.13
48.6
4.17
48.6
4.09
48.6
3.92
48.6
3.76
48.6
3.61
47.0
43.0
51.0
4.21
50.6
4.13
50.1
4.05
50.1
3.92
49.6
4.05
50.1
3.76
49.6
3.64
49.1
3.52
50.0
46.0
52.0
4.17
52.0
4.05
52.0
3.92
52.0
3.76
52.0
3.72
52.0
3.64
49.6
3.48
47.2
3.32
55.0
51.0
53.5
4.09
53.5
3.92
53.5
3.76
53.5
3.64
53.5
3.60
52.5
3.48
49.6
3.36
46.7
3.24
60.0
56.0
57.0
3.89
56.5
3.76
56.0
3.64
56.0
3.48
54.5
3.44
52.5
3.36
49.6
3.24
46.7
3.12
-4
-4.4
29.1
3.54
28.6
3.56
28.2
3.58
28.2
3.62
28.2
3.62
28.2
3.62
28.2
3.65
28.2
3.68
0
-0.4
29.1
3.59
29.1
3.59
29.1
3.59
29.1
3.62
29.1
3.62
29.1
3.65
28.6
3.65
28.2
3.65
5.0
4.5
32.4
3.59
32.4
3.62
32.4
3.65
32.4
3.65
32.4
3.68
32.4
3.68
32.4
3.72
32.4
3.75
3.72
10.0
9.0
34.2
3.65
34.2
3.65
34.2
3.65
34.2
3.68
34.2
3.68
34.2
3.72
33.7
3.72
33.2
15.0
14.0
36.5
3.68
36.5
3.68
36.5
3.68
36.5
3.72
36.5
3.69
36.5
3.75
36.5
3.75
36.5
3.75
20.0
19.0
38.4
3.72
38.4
3.72
38.4
3.72
38.4
3.75
38.4
3.66
38.4
3.75
38.4
3.78
38.4
3.81
25.0
23.0
40.2
3.73
40.2
3.73
40.2
3.73
40.2
3.73
40.2
3.77
40.2
3.81
40.2
3.81
40.2
3.81
30.0
28.0
41.1
3.77
41.1
3.77
41.1
3.77
41.1
3.81
41.1
3.81
41.1
3.85
41.1
3.85
41.1
3.85
35.0
32.0
42.0
3.81
42.0
3.81
42.0
3.81
42.0
3.85
42.0
3.85
42.0
3.88
41.6
3.81
41.1
3.73
40.0
36.0
43.9
3.77
43.9
3.81
43.9
3.85
43.9
3.88
43.5
3.88
43.5
3.81
42.5
3.69
41.6
3.58
45.0
41.0
46.2
3.81
45.7
3.85
45.2
3.88
45.2
3.85
45.2
3.85
44.9
3.69
42.5
3.54
40.3
3.40
47.0
43.0
46.6
3.96
46.6
3.88
46.6
3.81
46.6
3.69
46.2
3.81
44.9
3.54
42.5
3.43
40.3
3.32
50.0
46.0
48.5
3.93
48.5
3.81
48.5
3.69
48.5
3.54
46.6
3.50
44.9
3.43
42.5
3.27
40.3
3.13
55.0
51.0
49.9
3.85
49.9
3.69
49.9
3.54
48.5
3.43
46.6
3.39
44.9
3.27
42.5
3.16
40.3
3.05
60.0
56.0
54.6
3.66
52.6
3.54
50.9
3.43
48.5
3.27
47.6
3.24
44.9
3.17
42.5
3.05
40.3
2.93
Capacity rated using ISO 5151—Test Rating Standard for Non-Ducted Heat Pumps.
Heating mode stable operation is ensured when the outdoor ambient wet-bulb temperature is between -4°F and 60°F.
Power Input (PI) in kW and includes compressor(s) and outdoor fan motor(s).
Rated with an equivalent piping length of 24.6 ft. and no change in elevation between the indoor and outdoor unit.
MBh = Net Capacity
R410A, 60 Hz
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
120
Outdoor Air
Temp
(°F)
DB
WB
Due to differences in test method and procedures, capacity data values provided in these
tables may differ from certified performance information published by AHRI or other
standardized testing agencies. AHRI testing protocol sets the volume of air flowing over
the coil at 444 CFM/ton and limits the number of indoor units connected to the system
being tested. LG conducts capacity tests using airflow rates and limits the number of
indoor units per system as stated in Table 4 (a and b) on pages 17–18, Table 5 on
page 19, and Table 14 on page 56.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PERFORMANCE DATA
|
35
PERFORMANCE DATA
Heating Capacity—3.0 Ton
Table 15b: ARUN036GS2 Heat Pump—Nominal Heating Capacity
Combination
Ratio (%)
Performance Data
100
90
80
Outdoor Air
Temp
(°F)
DB
WB
Indoor Air Temperature (°F) DB
59
61
64
67
|
73
76
80
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
-4
-4.4
28.1
3.98
28.1
4.08
28.1
4.18
28.1
4.22
27.7
4.25
27.7
4.25
27.7
4.25
27.7
4.25
0
-0.4
29.0
4.15
29.0
4.18
29.0
4.22
29.0
4.25
29.0
4.28
28.5
4.28
28.5
4.28
28.5
4.28
5.0
4.5
32.8
4.22
32.4
4.25
32.0
4.28
32.0
4.32
32.0
4.35
32.0
4.35
32.0
4.39
32.0
4.42
10.0
9.0
34.0
4.28
34.0
4.32
34.0
4.35
33.6
4.35
33.6
4.39
33.6
4.39
33.6
4.25
33.6
4.12
15.0
14.0
36.1
4.39
36.1
4.35
36.1
4.32
36.1
4.32
36.1
4.28
36.1
4.22
35.7
4.05
35.3
3.88
20.0
19.0
38.3
4.39
38.3
4.32
38.3
4.25
38.3
4.15
37.3
4.05
37.3
3.91
36.8
3.88
36.2
3.84
25.0
23.0
39.9
4.43
39.9
4.22
39.9
4.01
39.9
3.88
39.9
3.77
39.0
3.71
38.7
3.67
38.3
3.64
30.0
28.0
40.7
4.12
40.7
4.01
40.7
3.91
40.7
3.74
40.7
3.71
39.9
3.67
38.7
3.64
37.4
3.60
35.0
32.0
42.0
4.12
42.0
3.94
42.0
3.77
42.0
3.64
41.6
3.64
40.7
3.60
38.7
3.40
36.7
3.21
40.0
36.0
43.7
4.02
43.7
3.88
43.7
3.74
43.7
3.57
42.0
3.47
40.7
3.40
38.7
3.20
36.7
3.00
45.0
41.0
45.3
3.95
45.3
3.81
45.3
3.67
44.1
3.40
42.0
3.26
40.7
3.16
38.7
2.89
36.7
2.64
47.0
43.0
47.0
3.96
46.6
3.74
46.2
3.54
44.1
3.26
42.0
3.40
40.7
3.03
38.7
2.79
36.7
2.57
50.0
46.0
50.5
3.75
48.3
3.57
46.2
3.40
44.1
3.06
42.0
3.03
40.7
2.92
38.7
2.69
36.7
2.47
55.0
51.0
51.3
3.54
48.7
3.40
46.2
3.26
44.1
2.89
42.0
2.92
40.7
2.82
38.7
2.62
36.7
2.43
60.0
56.0
51.3
3.51
48.7
3.33
46.2
3.16
44.1
2.79
42.0
2.82
40.7
2.72
38.7
2.52
36.7
2.33
-4
-4.4
27.5
3.86
27.3
3.92
27.0
3.98
27.0
4.04
27.0
4.13
27.0
4.19
27.0
4.22
27.0
4.22
0
-0.4
28.3
3.92
28.1
3.98
27.8
4.04
27.8
4.07
27.8
4.16
27.8
4.20
27.8
4.28
27.8
4.25
5.0
4.5
31.3
3.98
31.3
4.04
31.3
4.10
31.3
4.13
31.3
4.19
31.0
4.22
31.0
4.31
31.0
4.40
10.0
9.0
33.3
4.07
33.0
4.10
32.9
4.13
32.9
4.16
32.9
4.22
32.9
4.25
32.6
4.13
32.3
4.01
15.0
14.0
35.4
3.89
35.4
3.80
35.4
3.71
35.2
3.65
35.2
3.53
35.2
3.47
33.0
3.74
31.1
4.03
20.0
19.0
37.3
3.65
37.3
3.59
37.3
3.53
37.3
3.47
36.5
3.32
35.9
3.29
34.4
3.29
33.0
3.29
25.0
23.0
39.7
3.66
39.7
3.47
39.7
3.29
39.0
3.23
37.8
3.20
36.7
3.20
34.8
3.11
33.0
3.02
30.0
28.0
41.6
3.70
41.6
3.44
41.6
3.20
39.7
3.14
37.8
3.11
36.7
3.11
34.8
3.05
33.0
2.99
35.0
32.0
42.3
3.74
42.0
3.41
41.6
3.11
39.7
3.08
37.8
3.05
36.7
3.05
34.8
2.99
33.0
2.93
40.0
36.0
45.4
3.71
43.5
3.38
41.6
3.08
39.7
3.05
37.8
3.02
36.7
2.99
34.8
2.96
33.0
2.93
45.0
41.0
46.2
3.68
43.9
3.35
41.6
3.05
39.7
3.02
37.8
3.01
36.7
2.96
34.8
2.90
33.0
2.84
47.0
43.0
46.2
3.54
43.9
3.32
41.6
3.11
39.7
2.87
37.8
2.99
36.7
2.66
34.8
2.45
33.0
2.26
50.0
46.0
46.2
3.43
43.9
3.20
41.6
2.99
39.7
2.78
37.8
2.69
36.7
2.57
34.8
2.39
33.0
2.23
55.0
51.0
46.2
3.31
43.9
3.08
41.6
2.87
39.7
2.69
37.8
2.57
36.7
2.48
34.8
2.30
33.0
2.14
60.0
56.0
46.2
3.22
43.9
2.99
41.6
2.78
39.7
2.60
37.8
2.51
36.7
2.42
34.8
2.24
33.0
2.08
-4
-4.4
27.5
3.40
27.0
3.46
26.6
3.51
26.6
3.56
26.6
3.61
26.6
3.67
26.6
3.69
26.6
3.72
0
-0.4
27.8
3.46
27.8
3.51
27.8
3.56
27.8
3.59
27.8
3.67
27.8
3.69
27.5
3.72
27.3
3.74
5.0
4.5
30.6
3.53
30.6
3.56
30.6
3.59
29.9
3.61
29.9
3.67
29.9
3.69
29.9
3.53
29.9
3.38
10.0
9.0
32.9
3.35
32.9
3.40
32.9
3.46
32.9
3.59
32.6
3.67
31.6
3.69
30.9
3.38
30.3
3.09
15.0
14.0
35.2
3.27
35.2
3.14
35.2
3.09
35.3
3.04
33.6
2.98
32.6
2.96
30.9
2.93
29.3
2.91
20.0
19.0
36.6
3.22
36.3
3.09
36.3
2.97
35.3
2.92
33.6
2.90
32.6
2.88
30.9
2.83
29.3
2.79
25.0
23.0
39.3
3.20
37.7
3.04
37.0
2.88
35.3
2.83
33.6
2.80
32.6
2.80
30.9
2.75
29.3
2.70
30.0
28.0
41.1
3.21
39.0
3.01
37.0
2.83
35.3
2.78
33.6
2.75
32.6
2.72
30.9
2.67
29.3
2.62
35.0
32.0
41.1
3.18
39.0
2.98
37.0
2.80
35.3
2.70
33.6
2.67
32.6
2.67
30.9
2.62
29.3
2.57
40.0
36.0
41.1
3.15
39.0
2.96
37.0
2.78
35.3
2.67
33.6
2.64
32.6
2.62
30.9
2.57
29.3
2.51
45.0
41.0
41.1
3.13
39.0
2.93
37.0
2.75
35.3
2.64
33.6
2.63
32.6
2.57
30.9
2.54
29.3
2.51
47.0
43.0
41.1
3.10
39.0
2.91
37.0
2.72
35.3
2.51
33.6
2.62
32.6
2.36
30.9
2.17
29.3
2.00
50.0
46.0
41.1
3.00
39.0
2.80
37.0
2.62
35.3
2.43
33.6
2.36
32.6
2.28
30.9
2.09
29.3
1.93
55.0
51.0
41.1
2.86
39.0
2.70
37.0
2.54
35.3
2.36
33.6
2.28
32.6
2.20
30.9
2.04
29.3
1.90
60.0
56.0
41.1
2.82
39.0
2.62
37.0
2.43
35.3
2.28
33.6
2.20
32.6
2.12
30.9
1.96
29.3
1.82
Capacity rated using ISO 5151—Test Rating Standard for Non-Ducted Heat Pumps.
Heating mode stable operation is ensured when the outdoor ambient wet-bulb temperature is between -4°F and 60°F.
Power Input (PI) in kW and includes compressor(s) and outdoor fan motor(s).
Rated with an equivalent piping length of 24.6 ft. and no change in elevation between the indoor and outdoor unit.
MBh = Net Capacity
R410A, 60 Hz
36
70
MBh
PERFORMANCE DATA
Due to differences in test method and procedures, capacity data values provided in these
tables may differ from certified performance information published by AHRI or other
standardized testing agencies. AHRI testing protocol sets the volume of air flowing over
the coil at 444 CFM/ton and limits the number of indoor units connected to the system
being tested. LG conducts capacity tests using airflow rates and limits the number of
indoor units per system as stated in Table 4 (a and b) on pages 17–18, Table 5 on
page 19, and Table 14 on page 56.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PERFORMANCE DATA
Heating Capacity—3.0 Ton
Table 15c: ARUN036GS2 Heat Pump—Nominal Heating Capacity
Combination
Ratio (%)
70
50
Indoor Air Temperature (°F) DB
59
61
64
67
70
73
76
80
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
-4
-4.4
26.2
3.39
26.2
3.39
25.9
3.42
25.9
3.46
25.9
3.42
25.9
3.39
25.0
3.45
23.2
3.36
0
-0.4
27.0
3.44
27.0
3.42
27.0
3.46
26.8
3.49
26.8
3.49
26.8
3.42
25.3
3.50
23.5
3.38
5.0
4.5
30.3
3.44
30.3
3.37
30.0
3.51
29.1
3.46
28.8
3.46
27.6
3.42
26.5
3.23
25.4
3.06
10.0
9.0
32.4
3.33
32.9
3.12
31.5
3.12
30.9
3.37
29.4
3.37
28.5
3.31
27.0
3.04
25.7
2.79
15.0
14.0
34.7
3.23
33.8
3.08
32.4
3.08
30.9
3.17
29.4
3.15
28.5
3.03
27.0
2.79
25.7
2.57
20.0
19.0
36.0
3.19
34.1
3.05
32.4
3.05
30.9
3.07
29.4
2.96
28.5
2.84
27.0
2.62
25.7
2.42
25.0
23.0
36.0
3.17
34.1
3.03
32.4
2.96
30.9
2.78
29.4
2.69
28.5
2.60
27.0
2.39
25.7
2.20
30.0
28.0
36.0
3.14
34.1
2.98
32.4
2.80
30.9
2.60
29.4
2.51
28.5
2.41
27.0
2.23
25.7
2.06
35.0
32.0
35.9
2.96
34.1
2.80
32.4
2.64
30.9
2.46
29.4
2.44
28.5
2.28
27.0
2.12
25.7
1.97
40.0
36.0
36.0
2.91
34.1
2.71
32.4
2.53
30.9
2.37
29.4
2.35
28.5
2.19
27.0
2.03
25.7
1.88
45.0
41.0
36.0
2.77
34.1
2.60
32.4
2.44
30.9
2.35
29.4
2.30
28.5
2.12
27.0
1.96
25.7
1.81
47.0
43.0
36.0
2.68
34.1
2.51
32.4
2.35
30.9
2.21
29.4
2.28
28.5
2.05
27.0
1.91
25.7
1.79
50.0
46.0
36.0
2.61
34.1
2.44
32.4
2.28
30.9
2.14
29.4
2.05
28.5
1.98
27.0
1.85
25.7
1.72
55.0
51.0
36.0
2.49
34.1
2.35
32.4
2.21
30.9
2.07
29.4
1.98
28.5
1.91
27.0
1.78
25.7
1.65
60.0
56.0
36.0
2.42
34.1
2.28
32.4
2.14
30.9
2.00
29.4
1.94
28.5
1.87
27.0
1.73
25.7
1.60
-4
-4.4
26.0
3.08
26.0
3.10
25.7
3.12
26.2
3.14
25.2
3.16
24.5
3.49
23.2
3.21
22.0
2.95
0
-0.4
27.0
3.37
27.0
3.39
26.8
3.41
26.5
3.16
25.2
3.18
24.5
3.37
23.2
3.09
22.0
2.84
5.0
4.5
30.2
3.41
29.2
3.58
27.7
3.43
26.5
3.18
25.2
3.06
24.5
2.94
23.2
2.71
22.0
2.50
10.0
9.0
30.8
3.31
29.2
3.45
27.7
3.22
26.5
2.99
25.2
2.88
24.5
2.77
23.2
2.56
22.0
2.36
15.0
14.0
30.8
3.22
29.2
3.16
27.7
2.95
26.5
2.75
25.2
2.65
24.5
2.55
23.2
2.36
22.0
2.17
20.0
19.0
30.8
3.17
29.2
2.96
27.7
2.77
26.5
2.58
25.2
2.49
24.5
2.40
23.2
2.22
22.0
2.05
25.0
23.0
30.8
2.88
29.2
2.69
27.7
2.52
26.5
2.36
25.2
2.27
24.5
2.19
23.2
2.03
22.0
1.89
30.0
28.0
30.8
2.68
29.2
2.52
27.7
2.36
26.5
2.21
25.2
2.13
24.5
2.05
23.2
1.90
22.0
1.76
35.0
32.0
30.8
2.51
29.2
2.36
27.7
2.23
26.5
2.07
25.2
2.05
24.5
1.94
23.2
1.80
22.0
1.68
40.0
36.0
30.8
2.43
29.2
2.29
27.7
2.15
26.5
2.02
25.2
2.00
24.5
1.88
23.2
1.74
22.0
1.62
45.0
41.0
30.8
2.35
29.2
2.21
27.7
2.07
26.5
1.98
25.2
1.96
24.5
1.80
23.2
1.69
22.0
1.58
47.0
43.0
30.8
2.28
29.2
2.13
27.7
2.00
26.5
1.86
25.2
1.94
24.5
1.74
23.2
1.63
22.0
1.52
50.0
46.0
30.8
2.18
29.2
2.05
27.7
1.94
26.5
1.82
25.2
1.76
24.5
1.71
23.2
1.59
22.0
1.48
55.0
51.0
30.8
2.12
29.2
2.00
27.7
1.88
26.5
1.76
25.2
1.71
24.5
1.65
23.2
1.53
22.0
1.42
60.0
56.0
30.8
2.06
29.2
1.94
27.7
1.82
26.5
1.71
25.2
1.65
24.5
1.59
23.2
1.49
22.0
1.40
-4
-4.4
25.7
3.04
24.4
3.04
23.1
3.02
22.0
3.02
21.0
2.91
20.4
2.80
19.3
2.58
18.3
2.38
0
-0.4
25.7
3.20
24.4
3.36
23.1
3.14
22.0
2.92
21.0
2.81
20.4
2.70
19.3
2.49
18.3
2.30
5.0
4.5
25.7
3.14
24.4
2.94
23.1
2.75
22.0
2.56
21.0
2.47
20.4
2.38
19.3
2.20
18.3
2.03
10.0
9.0
25.7
2.96
24.4
2.77
23.1
2.59
22.0
2.42
21.0
2.33
20.4
2.25
19.3
2.08
18.3
1.92
15.0
14.0
25.7
2.72
24.4
2.55
23.1
2.39
22.0
2.23
21.0
2.15
20.4
2.07
19.3
1.92
18.3
1.78
20.0
19.0
25.7
2.34
24.4
2.39
23.1
2.25
22.0
2.10
21.0
2.03
20.4
1.96
19.3
1.82
18.3
1.69
25.0
23.0
25.7
2.34
24.4
2.19
23.1
2.05
22.0
1.92
21.0
1.85
20.4
1.79
19.3
1.66
18.3
1.54
30.0
28.0
25.7
2.16
24.4
2.05
23.1
1.93
22.0
1.81
21.0
1.74
20.4
1.69
19.3
1.57
18.3
1.45
35.0
32.0
25.7
2.05
24.4
1.93
23.1
1.82
22.0
1.71
21.0
1.68
20.4
1.60
19.3
1.49
18.3
1.38
40.0
36.0
25.7
1.99
24.4
1.87
23.1
1.76
22.0
1.65
21.0
1.63
20.4
1.55
19.3
1.44
18.3
1.33
45.0
41.0
25.7
1.92
24.4
1.81
23.1
1.69
22.0
1.61
21.0
1.61
20.4
1.50
19.3
1.41
18.3
1.32
47.0
43.0
25.7
1.84
24.4
1.74
23.1
1.65
22.0
1.55
21.0
1.60
20.4
1.45
19.3
1.36
18.3
1.27
50.0
46.0
25.7
1.80
24.4
1.69
23.1
1.60
22.0
1.50
21.0
1.45
20.4
1.41
19.3
1.33
18.3
1.25
55.0
51.0
25.7
1.75
24.4
1.65
23.1
1.55
22.0
1.45
21.0
1.42
20.4
1.37
19.3
1.28
18.3
1.19
60.0
56.0
25.7
1.70
24.4
1.60
23.1
1.50
22.0
1.42
21.0
1.37
20.4
1.33
19.3
1.25
18.3
1.17
Capacity rated using ISO 5151—Test Rating Standard for Non-Ducted Heat Pumps.
Heating mode stable operation is ensured when the outdoor ambient wet-bulb temperature is between -4°F and 60°F.
Power Input (PI) in kW and includes compressor(s) and outdoor fan motor(s).
Rated with an equivalent piping length of 24.6 ft. and no change in elevation between the indoor and outdoor unit.
MBh = Net Capacity
R410A, 60 Hz
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
60
Outdoor Air
Temp
(°F)
DB
WB
Due to differences in test method and procedures, capacity data values provided in these
tables may differ from certified performance information published by AHRI or other
standardized testing agencies. AHRI testing protocol sets the volume of air flowing over
the coil at 444 CFM/ton and limits the number of indoor units connected to the system
being tested. LG conducts capacity tests using airflow rates and limits the number of
indoor units per system as stated in Table 4 (a and b) on pages 17–18, Table 5 on
page 19, and Table 14 on page 56.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PERFORMANCE DATA
|
37
PERFORMANCE DATA
Heating Capacity— 4.0 Ton
Table 16a: ARUN047GS2 Heat Pump—Nominal Heating Capacity
Combination
Ratio (%)
Performance Data
130
120
110
Outdoor Air
Temp
(°F)
DB
WB
Indoor Air Temperature (°F) DB
59
61
64
67
|
73
76c
80
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
39.8
4.79
39.8
4.82
39.8
4.86
39.8
4.91
39.8
4.91
39.8
4.91
39.8
4.95
39.8
5.00
-4
-4.4
0
-0.4
41.9
4.87
41.2
4.87
40.5
4.87
40.5
4.91
40.5
4.91
40.5
4.95
40.5
4.95
40.5
4.95
5.0
4.5
45.3
4.87
45.3
4.91
45.3
4.95
45.3
4.95
45.3
5.00
45.3
5.00
45.3
5.03
45.3
5.07
10.0
9.0
47.3
4.95
47.3
4.95
47.3
4.95
47.3
5.00
47.3
5.00
47.3
5.03
47.3
5.03
47.3
5.03
15.0
14.0
51.3
5.00
51.3
5.00
51.3
5.00
50.6
5.03
50.6
5.03
50.6
5.07
50.6
5.07
50.6
5.07
20.0
19.0
53.4
5.03
53.4
5.03
53.4
5.03
53.4
5.07
53.4
5.07
53.4
5.07
53.4
5.12
53.4
5.16
25.0
23.0
57.4
5.06
57.4
5.06
57.4
5.06
57.4
5.11
57.4
5.11
57.4
5.16
57.4
5.16
57.4
5.16
30.0
28.0
58.7
5.11
58.7
5.11
58.7
5.11
58.7
5.16
58.7
5.16
58.7
5.21
58.7
5.21
58.7
5.21
35.0
32.0
61.5
5.16
61.5
5.16
61.5
5.16
61.5
5.21
61.5
5.21
61.5
5.26
61.5
5.16
61.5
5.06
40.0
36.0
64.1
5.11
64.1
5.16
64.1
5.21
64.1
5.26
64.1
5.26
64.1
5.16
64.1
5.01
64.1
4.86
45.0
41.0
67.5
5.16
66.8
5.21
66.1
5.26
66.1
5.13
66.1
5.11
66.1
5.01
66.1
4.79
66.1
4.60
47.0
43.0
69.6
5.36
68.8
5.31
68.2
5.26
68.2
5.21
67.5
5.16
68.2
4.79
67.5
4.64
66.8
4.49
50.0
46.0
70.8
5.32
70.8
5.16
70.8
5.01
70.8
4.79
70.8
4.74
70.8
4.64
67.5
4.44
64.2
4.24
55.0
51.0
72.8
5.22
72.8
5.01
72.8
4.79
72.8
4.64
72.8
4.59
71.6
4.44
67.5
4.29
63.7
4.14
60.0
56.0
77.6
4.96
76.9
4.79
76.3
4.64
76.3
4.44
74.2
4.39
71.6
4.29
67.5
4.12
63.7
3.98
-4
-4.4
38.8
4.76
38.8
4.78
38.8
4.81
38.8
4.86
38.8
4.86
38.8
4.87
38.8
4.91
38.8
4.95
0
-0.4
40.8
4.83
39.5
4.83
38.2
4.83
38.2
4.87
38.2
4.87
38.2
4.91
38.2
4.91
38.2
4.91
5.0
4.5
44.6
4.83
43.4
4.87
42.7
4.91
42.7
4.91
42.7
4.95
42.7
4.95
42.1
5.00
41.5
5.03
10.0
9.0
47.2
4.91
45.9
4.91
44.6
4.91
44.6
4.95
44.6
4.95
44.6
5.00
44.6
5.00
44.6
5.00
5.02
15.0
14.0
47.8
4.91
47.8
4.96
47.8
4.96
47.8
4.96
47.8
5.02
47.8
5.02
47.8
5.02
47.8
20.0
19.0
50.3
4.91
50.3
4.95
50.3
5.00
50.3
5.00
50.3
5.03
50.3
5.03
50.3
5.07
50.3
5.12
25.0
23.0
54.1
5.02
54.1
5.02
54.1
5.02
54.1
5.07
54.1
5.07
54.1
5.12
54.1
5.12
54.1
5.12
30.0
28.0
55.4
5.07
55.4
5.07
55.4
5.07
55.4
5.12
55.4
5.12
55.4
5.17
55.4
5.17
55.4
5.17
35.0
32.0
58.0
5.12
58.0
5.12
58.0
5.12
58.0
5.17
58.0
5.17
58.0
5.22
58.0
5.12
58.0
5.02
40.0
36.0
60.6
5.07
60.6
5.12
60.6
5.17
60.6
5.22
60.6
5.22
60.6
5.12
60.6
4.96
60.6
4.82
45.0
41.0
63.7
5.12
63.1
5.17
62.5
5.22
62.5
5.27
62.5
5.17
62.5
4.96
62.5
4.76
62.5
4.57
47.0
43.0
65.6
5.32
65.0
5.22
64.4
5.12
64.4
4.96
63.7
5.12
64.4
4.76
63.7
4.60
63.1
4.45
50.0
46.0
66.9
5.27
66.9
5.12
66.9
4.96
66.9
4.76
66.9
4.70
66.9
4.60
63.7
4.40
60.7
4.20
55.0
51.0
68.8
5.17
68.8
4.96
68.8
4.76
68.8
4.60
68.8
4.55
67.5
4.40
63.7
4.25
60.1
4.10
60.0
56.0
73.2
4.92
72.6
4.76
72.0
4.60
72.0
4.40
70.1
4.35
67.5
4.25
63.7
4.10
60.1
3.95
-4
-4.4
37.4
4.48
36.8
4.50
36.3
4.53
36.3
4.58
36.3
4.58
36.3
4.58
36.3
4.62
36.3
4.65
0
-0.4
37.4
4.54
37.4
4.54
37.4
4.54
37.4
4.58
37.4
4.58
37.4
4.62
36.8
4.62
36.3
4.62
5.0
4.5
41.6
4.54
41.6
4.58
41.6
4.62
41.6
4.62
41.6
4.65
41.6
4.65
41.6
4.70
41.6
4.74
10.0
9.0
44.0
4.62
44.0
4.62
44.0
4.62
44.0
4.65
44.0
4.65
44.0
4.70
43.4
4.70
42.7
4.70
15.0
14.0
46.9
4.65
46.9
4.65
46.9
4.65
46.9
4.70
46.9
4.67
46.9
4.74
46.9
4.74
46.9
4.74
20.0
19.0
49.3
4.70
49.3
4.70
49.3
4.70
49.3
4.74
49.3
4.63
49.3
4.74
49.3
4.78
49.3
4.82
25.0
23.0
51.7
4.72
51.7
4.72
51.7
4.72
51.7
4.72
51.7
4.77
51.7
4.82
51.7
4.82
51.7
4.82
30.0
28.0
52.9
4.77
52.9
4.77
52.9
4.77
52.9
4.82
52.9
4.82
52.9
4.87
52.9
4.87
52.9
4.87
35.0
32.0
54.0
4.82
54.0
4.82
54.0
4.82
54.0
4.87
54.0
4.87
54.0
4.91
53.5
4.82
52.9
4.72
40.0
36.0
56.4
4.77
56.4
4.82
56.4
4.87
56.4
4.91
55.9
4.91
55.9
4.82
54.6
4.67
53.5
4.53
45.0
41.0
59.4
4.82
58.8
4.87
58.2
4.91
58.2
4.87
58.2
4.87
57.7
4.67
54.6
4.48
51.9
4.30
47.0
43.0
59.9
5.01
59.9
4.91
59.9
4.82
59.9
4.67
59.4
4.82
57.7
4.48
54.6
4.34
51.9
4.20
50.0
46.0
62.3
4.97
62.3
4.82
62.3
4.67
62.3
4.48
59.9
4.43
57.7
4.34
54.6
4.14
51.9
3.96
55.0
51.0
64.1
4.87
64.1
4.67
64.1
4.48
62.3
4.34
59.9
4.29
57.7
4.14
54.6
4.00
51.9
3.86
60.0
56.0
70.2
4.63
67.7
4.48
65.4
4.34
62.3
4.14
61.2
4.10
57.7
4.01
54.6
3.86
51.9
3.71
Capacity rated using ISO 5151—Test Rating Standard for Non-Ducted Heat Pumps.
Heating mode stable operation is ensured when the outdoor ambient wet-bulb temperature is between -4°F and 60°F.
Power Input (PI) in kW and includes compressor(s) and outdoor fan motor(s).
Rated with an equivalent piping length of 24.6 ft. and no change in elevation between the indoor and outdoor unit.
MBh = Net Capacity
R410A, 60 Hz
38
70
PERFORMANCE DATA
Due to differences in test method and procedures, capacity data values provided in these
tables may differ from certified performance information published by AHRI or other
standardized testing agencies. AHRI testing protocol sets the volume of air flowing over
the coil at 444 CFM/ton and limits the number of indoor units connected to the system
being tested. LG conducts capacity tests using airflow rates and limits the number of
indoor units per system as stated in Table 4 (a and b) on pages 17–18, Table 5 on
page 19, and Table 14 on page 56.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PERFORMANCE DATA
Heating Capacity—4.0 Ton
Table 16b: ARUN047GS2 Heat Pump—Nominal Heating Capacity
Combination
Ratio (%)
100
80
Indoor Air Temperature (°F) DB
59
61
64
67
70
73
76
80
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
36.2
5.03
36.2
5.16
36.2
5.29
36.2
5.34
35.7
5.38
35.7
5.38
35.7
5.38
35.7
5.38
-4
-4.4
0
-0.4
37.3
5.25
37.3
5.29
37.3
5.34
37.3
5.38
37.3
5.41
36.7
5.41
36.7
5.41
36.7
5.41
5.0
4.5
42.1
5.34
41.6
5.38
41.1
5.41
41.1
5.46
41.1
5.50
41.1
5.50
41.1
5.55
41.1
5.59
10.0
9.0
43.8
5.41
43.8
5.46
43.8
5.50
43.3
5.50
43.3
5.55
43.3
5.55
43.3
5.38
43.3
5.21
15.0
14.0
46.4
5.55
46.4
5.50
46.4
5.46
46.4
5.46
46.4
5.41
46.4
5.34
45.9
5.12
45.4
4.91
20.0
19.0
49.2
5.55
49.2
5.46
49.2
5.38
49.2
5.25
47.9
5.12
47.9
4.95
47.3
4.91
46.5
4.86
25.0
23.0
51.3
5.60
51.3
5.34
51.3
5.07
51.3
4.91
51.3
4.77
50.2
4.69
49.7
4.64
49.2
4.60
30.0
28.0
52.4
5.21
52.4
5.07
52.4
4.95
52.4
4.73
52.4
4.69
51.3
4.64
49.7
4.60
48.1
4.55
35.0
32.0
54.0
5.21
54.0
4.98
54.0
4.77
54.0
4.60
53.5
4.60
52.4
4.55
49.7
4.30
47.2
4.06
40.0
36.0
56.1
5.08
56.1
4.91
56.1
4.73
56.1
4.52
54.0
4.39
52.4
4.30
49.7
4.05
47.2
3.79
45.0
41.0
58.3
5.00
58.3
4.82
58.3
4.64
56.7
4.30
54.0
4.12
52.4
4.00
49.7
3.66
47.2
3.34
47.0
43.0
60.4
5.01
59.9
4.73
59.4
4.48
56.7
4.12
54.0
4.30
52.4
3.83
49.7
3.53
47.2
3.25
50.0
46.0
64.9
4.74
62.1
4.52
59.4
4.30
56.7
3.87
54.0
3.83
52.4
3.69
49.7
3.40
47.2
3.12
55.0
51.0
66.0
4.48
62.6
4.30
59.4
4.12
56.7
3.66
54.0
3.69
52.4
3.57
49.7
3.31
47.2
3.07
60.0
56.0
66.0
4.44
62.6
4.21
59.4
4.00
56.7
3.53
54.0
3.57
52.4
3.44
49.7
3.19
47.2
2.95
-4
-4.4
35.4
4.88
35.2
4.96
34.8
5.03
34.8
5.11
34.8
5.22
34.8
5.30
34.8
5.34
34.8
5.34
0
-0.4
36.4
4.96
36.2
5.03
35.8
5.11
35.8
5.15
35.8
5.26
35.8
5.31
35.8
5.41
35.8
5.38
5.0
4.5
40.2
5.03
40.2
5.11
40.2
5.19
40.2
5.22
40.2
5.30
39.8
5.34
39.8
5.45
39.8
5.56
10.0
9.0
42.9
5.15
42.5
5.19
42.2
5.22
42.2
5.26
42.2
5.34
42.2
5.38
41.9
5.22
41.5
5.07
5.10
15.0
14.0
45.5
4.92
45.5
4.81
45.5
4.69
45.3
4.62
45.3
4.46
45.3
4.39
42.5
4.73
40.0
20.0
19.0
47.9
4.62
47.9
4.54
47.9
4.46
47.9
4.39
46.9
4.20
46.2
4.16
44.3
4.16
42.4
4.16
25.0
23.0
51.1
4.63
51.1
4.39
51.1
4.16
50.1
4.09
48.6
4.05
47.2
4.05
44.8
3.93
42.4
3.82
30.0
28.0
53.5
4.68
53.5
4.35
53.5
4.05
51.1
3.97
48.6
3.93
47.2
3.93
44.8
3.86
42.4
3.78
35.0
32.0
54.4
4.73
54.0
4.31
53.5
3.93
51.1
3.90
48.6
3.86
47.2
3.86
44.8
3.78
42.4
3.71
40.0
36.0
58.4
4.69
55.9
4.27
53.5
3.90
51.1
3.86
48.6
3.82
47.2
3.78
44.8
3.74
42.4
3.71
45.0
41.0
59.4
4.65
56.4
4.24
53.5
3.86
51.1
3.82
48.6
3.81
47.2
3.74
44.8
3.67
42.4
3.59
47.0
43.0
59.4
4.48
56.4
4.20
53.5
3.93
51.1
3.63
48.6
3.78
47.2
3.36
44.8
3.10
42.4
2.86
50.0
46.0
59.4
4.34
56.4
4.05
53.5
3.78
51.1
3.52
48.6
3.40
47.2
3.25
44.8
3.02
42.4
2.82
55.0
51.0
59.4
4.19
56.4
3.90
53.5
3.63
51.1
3.40
48.6
3.25
47.2
3.14
44.8
2.91
42.4
2.71
60.0
56.0
59.4
4.07
56.4
3.78
53.5
3.52
51.1
3.29
48.6
3.17
47.2
3.06
44.8
2.83
42.4
2.63
-4
-4.4
35.4
4.30
34.8
4.38
34.1
4.44
34.1
4.50
34.1
4.57
34.1
4.64
34.1
4.67
34.1
4.70
0
-0.4
35.8
4.38
35.8
4.44
35.8
4.50
35.8
4.54
35.8
4.64
35.8
4.67
35.4
4.70
35.2
4.73
5.0
4.5
39.3
4.46
39.3
4.50
39.3
4.54
38.4
4.57
38.4
4.64
38.4
4.67
38.4
4.46
38.4
4.27
10.0
9.0
42.2
4.24
42.2
4.30
42.2
4.38
42.2
4.54
41.9
4.64
40.6
4.67
39.7
4.27
39.0
3.91
15.0
14.0
45.3
4.14
45.3
3.97
45.3
3.91
45.4
3.84
43.3
3.77
41.9
3.74
39.7
3.71
37.7
3.68
20.0
19.0
47.0
4.07
46.7
3.91
46.7
3.76
45.4
3.69
43.3
3.67
41.9
3.64
39.7
3.58
37.7
3.53
25.0
23.0
50.6
4.05
48.4
3.84
47.6
3.64
45.4
3.58
43.3
3.54
41.9
3.54
39.7
3.48
37.7
3.41
30.0
28.0
52.9
4.06
50.1
3.81
47.6
3.58
45.4
3.52
43.3
3.48
41.9
3.44
39.7
3.38
37.7
3.31
35.0
32.0
52.9
4.02
50.1
3.77
47.6
3.54
45.4
3.41
43.3
3.38
41.9
3.38
39.7
3.31
37.7
3.25
40.0
36.0
52.9
3.98
50.1
3.74
47.6
3.52
45.4
3.38
43.3
3.34
41.9
3.31
39.7
3.25
37.7
3.17
45.0
41.0
52.9
3.96
50.1
3.71
47.6
3.48
45.4
3.34
43.3
3.33
41.9
3.25
39.7
3.21
37.7
3.17
47.0
43.0
52.9
3.92
50.1
3.68
47.6
3.44
45.4
3.17
43.3
3.31
41.9
2.98
39.7
2.74
37.7
2.53
50.0
46.0
52.9
3.79
50.1
3.54
47.6
3.31
45.4
3.07
43.3
2.98
41.9
2.88
39.7
2.64
37.7
2.44
55.0
51.0
52.9
3.62
50.1
3.41
47.6
3.21
45.4
2.98
43.3
2.88
41.9
2.78
39.7
2.58
37.7
2.40
60.0
56.0
52.9
3.57
50.1
3.31
47.6
3.07
45.4
2.88
43.3
2.78
41.9
2.68
39.7
2.48
37.7
2.30
Capacity rated using ISO 5151—Test Rating Standard for Non-Ducted Heat Pumps.
Heating mode stable operation is ensured when the outdoor ambient wet-bulb temperature is between -4°F and 60°F.
Power Input (PI) in kW and includes compressor(s) and outdoor fan motor(s).
Rated with an equivalent piping length of 24.6 ft. and no change in elevation between the indoor and outdoor unit.
MBh = Net Capacity
R410A, 60 Hz
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
90
Outdoor Air
Temp
(°F)
DB
WB
Due to differences in test method and procedures, capacity data values provided in these
tables may differ from certified performance information published by AHRI or other
standardized testing agencies. AHRI testing protocol sets the volume of air flowing over
the coil at 444 CFM/ton and limits the number of indoor units connected to the system
being tested. LG conducts capacity tests using airflow rates and limits the number of
indoor units per system as stated in Table 4 (a and b) on pages 17–18, Table 5 on
page 19, and Table 14 on page 56.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PERFORMANCE DATA
|
39
PERFORMANCE DATA
Heating Capacity—4.0 Ton
Table 16c: ARUN047GS2 Heat Pump—Nominal Heating Capacity
Combination
Ratio (%)
Performance Data
70
60
50
Outdoor Air
Temp
(°F) DB
DB WB
Indoor Air Temperature (°F) DB
59
61
64
67
|
73
76
80
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
33.6
4.29
33.6
4.29
33.3
4.33
33.3
4.38
33.3
4.33
33.3
4.29
32.1
4.36
29.8
4.25
-4
-4.4
0
-0.4
34.8
4.35
34.8
4.33
34.8
4.38
34.4
4.41
34.4
4.41
34.4
4.33
32.5
4.43
30.2
4.27
5.0
4.5
39.0
4.35
39.0
4.26
38.6
4.44
37.4
4.38
37.1
4.38
35.5
4.33
34.0
4.09
32.6
3.87
10.0
9.0
41.6
4.21
42.2
3.95
40.5
3.95
39.7
4.26
37.8
4.26
36.7
4.19
34.8
3.84
33.0
3.53
15.0
14.0
44.6
4.09
43.5
3.90
41.6
3.90
39.7
4.01
37.8
3.98
36.7
3.83
34.8
3.53
33.0
3.25
20.0
19.0
46.3
4.03
43.9
3.86
41.6
3.86
39.7
3.88
37.8
3.74
36.7
3.59
34.8
3.31
33.0
3.06
25.0
23.0
46.3
4.01
43.9
3.83
41.6
3.74
39.7
3.52
37.8
3.40
36.7
3.29
34.8
3.02
33.0
2.78
30.0
28.0
46.3
3.97
43.9
3.77
41.6
3.54
39.7
3.29
37.8
3.17
36.7
3.05
34.8
2.82
33.0
2.61
35.0
32.0
46.2
3.74
43.9
3.54
41.6
3.34
39.7
3.11
37.8
3.09
36.7
2.88
34.8
2.68
33.0
2.49
40.0
36.0
46.3
3.68
43.9
3.43
41.6
3.20
39.7
3.00
37.8
2.97
36.7
2.77
34.8
2.57
33.0
2.38
45.0
41.0
46.3
3.50
43.9
3.29
41.6
3.09
39.7
2.97
37.8
2.91
36.7
2.68
34.8
2.48
33.0
2.29
47.0
43.0
46.3
3.39
43.9
3.17
41.6
2.97
39.7
2.80
37.8
2.88
36.7
2.59
34.8
2.42
33.0
2.26
50.0
46.0
46.3
3.30
43.9
3.09
41.6
2.88
39.7
2.71
37.8
2.59
36.7
2.50
34.8
2.34
33.0
2.18
55.0
51.0
46.3
3.15
43.9
2.97
41.6
2.80
39.7
2.62
37.8
2.50
36.7
2.42
34.8
2.25
33.0
2.09
60.0
56.0
46.3
3.06
43.9
2.88
41.6
2.71
39.7
2.53
37.8
2.45
36.7
2.37
34.8
2.19
33.0
2.02
-4
-4.4
33.4
3.90
33.4
3.92
33.0
3.95
33.6
3.97
32.4
4.00
31.5
4.41
29.8
4.06
28.3
3.73
0
-0.4
34.7
4.26
34.7
4.29
34.4
4.31
34.0
4.00
32.4
4.02
31.5
4.26
29.8
3.91
28.3
3.59
5.0
4.5
38.8
4.31
37.6
4.53
35.7
4.34
34.0
4.02
32.4
3.87
31.5
3.72
29.8
3.43
28.3
3.16
10.0
9.0
39.6
4.19
37.6
4.36
35.7
4.07
34.0
3.78
32.4
3.64
31.5
3.50
29.8
3.24
28.3
2.98
2.74
15.0
14.0
39.6
4.07
37.6
4.00
35.7
3.73
34.0
3.48
32.4
3.35
31.5
3.23
29.8
2.98
28.3
20.0
19.0
39.6
4.01
37.6
3.74
35.7
3.50
34.0
3.26
32.4
3.15
31.5
3.04
29.8
2.81
28.3
2.59
25.0
23.0
39.6
3.64
37.6
3.40
35.7
3.19
34.0
2.98
32.4
2.87
31.5
2.77
29.8
2.57
28.3
2.39
30.0
28.0
39.6
3.39
37.6
3.19
35.7
2.98
34.0
2.80
32.4
2.69
31.5
2.59
29.8
2.40
28.3
2.23
35.0
32.0
39.6
3.17
37.6
2.98
35.7
2.82
34.0
2.62
32.4
2.59
31.5
2.45
29.8
2.28
28.3
2.12
40.0
36.0
39.6
3.07
37.6
2.90
35.7
2.72
34.0
2.55
32.4
2.53
31.5
2.38
29.8
2.20
28.3
2.05
45.0
41.0
39.6
2.97
37.6
2.80
35.7
2.62
34.0
2.50
32.4
2.48
31.5
2.28
29.8
2.14
28.3
2.00
47.0
43.0
39.6
2.88
37.6
2.69
35.7
2.53
34.0
2.35
32.4
2.45
31.5
2.20
29.8
2.06
28.3
1.92
50.0
46.0
39.6
2.76
37.6
2.59
35.7
2.45
34.0
2.30
32.4
2.23
31.5
2.16
29.8
2.01
28.3
1.87
55.0
51.0
39.6
2.68
37.6
2.53
35.7
2.38
34.0
2.23
32.4
2.16
31.5
2.09
29.8
1.94
28.3
1.80
60.0
56.0
39.6
2.61
37.6
2.45
35.7
2.30
34.0
2.16
32.4
2.09
31.5
2.01
29.8
1.88
28.3
1.77
-4
-4.4
33.0
3.84
31.4
3.84
29.7
3.82
28.3
3.82
27.1
3.68
26.2
3.54
24.8
3.26
23.5
3.01
0
-0.4
33.0
4.05
31.4
4.25
29.7
3.97
28.3
3.69
27.1
3.55
26.2
3.41
24.8
3.15
23.5
2.91
5.0
4.5
33.0
3.97
31.4
3.72
29.7
3.48
28.3
3.24
27.1
3.12
26.2
3.01
24.8
2.78
23.5
2.57
10.0
9.0
33.0
3.74
31.4
3.50
29.7
3.28
28.3
3.06
27.1
2.95
26.2
2.85
24.8
2.63
23.5
2.43
15.0
14.0
33.0
3.44
31.4
3.23
29.7
3.02
28.3
2.82
27.1
2.72
26.2
2.62
24.8
2.43
23.5
2.25
20.0
19.0
33.0
2.96
31.4
3.02
29.7
2.85
28.3
2.66
27.1
2.57
26.2
2.48
24.8
2.30
23.5
2.14
25.0
23.0
33.0
2.96
31.4
2.77
29.7
2.59
28.3
2.43
27.1
2.34
26.2
2.26
24.8
2.10
23.5
1.95
30.0
28.0
33.0
2.73
31.4
2.59
29.7
2.44
28.3
2.29
27.1
2.20
26.2
2.14
24.8
1.99
23.5
1.83
35.0
32.0
33.0
2.59
31.4
2.44
29.7
2.30
28.3
2.16
27.1
2.12
26.2
2.02
24.8
1.88
23.5
1.75
40.0
36.0
33.0
2.52
31.4
2.37
29.7
2.23
28.3
2.09
27.1
2.06
26.2
1.96
24.8
1.82
23.5
1.68
45.0
41.0
33.0
2.43
31.4
2.29
29.7
2.14
28.3
2.04
27.1
2.04
26.2
1.90
24.8
1.78
23.5
1.67
47.0
43.0
33.0
2.33
31.4
2.20
29.7
2.09
28.3
1.96
27.1
2.02
26.2
1.83
24.8
1.72
23.5
1.61
50.0
46.0
33.0
2.28
31.4
2.14
29.7
2.02
28.3
1.90
27.1
1.83
26.2
1.78
24.8
1.68
23.5
1.58
55.0
51.0
33.0
2.21
31.4
2.09
29.7
1.96
28.3
1.83
27.1
1.80
26.2
1.73
24.8
1.62
23.5
1.51
60.0
56.0
33.0
2.15
31.4
2.02
29.7
1.90
28.3
1.80
27.1
1.73
26.2
1.68
24.8
1.58
23.5
1.48
Capacity rated using ISO 5151—Test Rating Standard for Non-Ducted Heat Pumps.
Heating mode stable operation is ensured when the outdoor ambient wet-bulb temperature is between -4°F and 60°F.
Power Input (PI) in kW and includes compressor(s) and outdoor fan motor(s).
Rated with an equivalent piping length of 24.6 ft. and no change in elevation between the indoor and outdoor unit.
MBh = Net Capacity
R410A, 60 Hz
40
70
PERFORMANCE DATA
Due to differences in test method and procedures, capacity data values provided in these
tables may differ from certified performance information published by AHRI or other
standardized testing agencies. AHRI testing protocol sets the volume of air flowing over
the coil at 444 CFM/ton and limits the number of indoor units connected to the system
being tested. LG conducts capacity tests using airflow rates and limits the number of
indoor units per system as stated in Table 4 (a and b) on pages 17–18, Table 5 on
page 19, and Table 14 on page 56.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PERFORMANCE DATA
Heating Capacity — 4.4 Ton
Table 17a: ARUN053GS2 Heat Pump—Nominal Heating Capacity
Combination
Ratio (%)
130
110
Indoor Air Temperature (°F) DB
59
61
64
67
70
73
76
80
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
-4
-4.4
45.0
6.24
45.0
6.28
45.0
6.32
45.0
6.39
45.0
6.39
45.0
6.39
45.0
6.44
45.0
6.51
0
-0.4
47.3
6.34
46.6
6.34
45.7
6.34
45.7
6.39
45.7
6.39
45.7
6.44
45.7
6.44
45.7
6.44
5.0
4.5
51.1
6.34
51.1
6.39
51.1
6.44
51.1
6.44
51.1
6.51
51.1
6.51
51.1
6.56
51.1
6.60
10.0
9.0
53.4
6.44
53.4
6.44
53.4
6.44
53.4
6.51
53.4
6.51
53.4
6.56
53.4
6.56
53.4
6.56
15.0
14.0
58.0
6.51
58.0
6.51
58.0
6.51
57.1
6.56
57.1
6.56
57.1
6.60
57.1
6.60
57.1
6.60
20.0
19.0
60.3
6.56
60.3
6.56
60.3
6.56
60.3
6.60
60.3
6.60
60.3
6.60
60.3
6.67
60.3
6.72
25.0
23.0
64.9
6.59
64.9
6.59
64.9
6.59
64.9
6.65
64.9
6.65
64.9
6.72
64.9
6.72
64.9
6.72
30.0
28.0
66.3
6.65
66.3
6.65
66.3
6.65
66.3
6.72
66.3
6.72
66.3
6.79
66.3
6.79
66.3
6.79
35.0
32.0
69.4
6.72
69.4
6.72
69.4
6.72
69.4
6.79
69.4
6.79
69.4
6.85
69.4
6.72
69.4
6.59
40.0
36.0
72.4
6.65
72.4
6.72
72.4
6.79
72.4
6.85
72.4
6.85
72.4
6.72
72.4
6.52
72.4
6.32
45.0
41.0
76.3
6.72
75.4
6.79
74.7
6.85
74.7
6.69
74.7
6.65
74.7
6.52
74.7
6.24
74.7
6.00
47.0
43.0
78.6
6.98
77.7
6.92
77.0
6.85
77.0
6.79
76.3
6.72
77.0
6.24
76.3
6.04
75.4
5.85
50.0
46.0
80.0
6.93
80.0
6.72
80.0
6.52
80.0
6.24
80.0
6.18
80.0
6.04
76.3
5.78
72.6
5.52
55.0
51.0
82.3
6.80
82.3
6.52
82.3
6.24
82.3
6.04
82.3
5.98
80.9
5.78
76.3
5.58
72.0
5.39
60.0
56.0
87.7
6.46
86.9
6.24
86.1
6.04
86.1
5.78
83.9
5.72
80.9
5.58
76.3
5.37
72.0
5.19
-4
-4.4
43.9
6.19
43.9
6.23
43.9
6.26
43.9
6.32
43.9
6.32
43.9
6.34
43.9
6.39
43.9
6.44
0
-0.4
46.1
6.29
44.6
6.29
43.1
6.29
43.1
6.34
43.1
6.34
43.1
6.39
43.1
6.39
43.1
6.39
5.0
4.5
50.4
6.29
49.0
6.34
48.3
6.39
48.3
6.39
48.3
6.44
48.3
6.44
47.6
6.51
46.9
6.56
10.0
9.0
53.3
6.39
51.9
6.39
50.4
6.39
50.4
6.44
50.4
6.44
50.4
6.51
50.4
6.51
50.4
6.51
15.0
14.0
54.0
6.39
54.0
6.46
54.0
6.46
54.0
6.46
54.0
6.54
54.0
6.54
54.0
6.54
54.0
6.54
20.0
19.0
56.9
6.39
56.9
6.44
56.9
6.51
56.9
6.51
56.9
6.56
56.9
6.56
56.9
6.60
56.9
6.67
25.0
23.0
61.1
6.54
61.1
6.54
61.1
6.54
61.1
6.60
61.1
6.60
61.1
6.67
61.1
6.67
61.1
6.67
30.0
28.0
62.6
6.60
62.6
6.60
62.6
6.60
62.6
6.67
62.6
6.67
62.6
6.74
62.6
6.74
62.6
6.74
35.0
32.0
65.6
6.67
65.6
6.67
65.6
6.67
65.6
6.74
65.6
6.74
65.6
6.80
65.6
6.67
65.6
6.54
40.0
36.0
68.4
6.60
68.4
6.67
68.4
6.74
68.4
6.80
68.4
6.80
68.4
6.67
68.4
6.46
68.4
6.28
45.0
41.0
72.0
6.67
71.3
6.74
70.6
6.80
70.6
6.87
70.6
6.74
70.6
6.46
70.6
6.19
70.6
5.95
47.0
43.0
74.1
6.93
73.4
6.80
72.7
6.67
72.7
6.46
72.0
6.67
72.7
6.19
72.0
6.00
71.3
5.80
50.0
46.0
75.6
6.87
75.6
6.67
75.6
6.46
75.6
6.19
75.6
6.13
75.6
6.00
72.0
5.73
68.6
5.47
55.0
51.0
77.7
6.74
77.7
6.46
77.7
6.19
77.7
6.00
77.7
5.93
76.3
5.73
72.0
5.53
67.9
5.34
60.0
56.0
82.7
6.41
82.0
6.19
81.3
6.00
81.3
5.73
79.1
5.67
76.3
5.53
72.0
5.34
67.9
5.14
-4
-4.4
42.3
5.83
41.6
5.86
41.0
5.90
41.0
5.96
41.0
5.96
41.0
5.96
41.0
6.01
41.0
6.06
0
-0.4
42.3
5.91
42.3
5.91
42.3
5.91
42.3
5.96
42.3
5.96
42.3
6.01
41.6
6.01
41.0
6.01
5.0
4.5
47.0
5.91
47.0
5.96
47.0
6.01
47.0
6.01
47.0
6.06
47.0
6.06
47.0
6.13
47.0
6.18
10.0
9.0
49.7
6.01
49.7
6.01
49.7
6.01
49.7
6.06
49.7
6.06
49.7
6.13
49.0
6.13
48.3
6.13
15.0
14.0
53.0
6.06
53.0
6.06
53.0
6.06
53.0
6.13
53.0
6.08
53.0
6.18
53.0
6.18
53.0
6.18
20.0
19.0
55.7
6.13
55.7
6.13
55.7
6.13
55.7
6.18
55.7
6.03
55.7
6.18
55.7
6.23
55.7
6.28
25.0
23.0
58.4
6.14
58.4
6.14
58.4
6.14
58.4
6.14
58.4
6.21
58.4
6.28
58.4
6.28
58.4
6.28
30.0
28.0
59.7
6.21
59.7
6.21
59.7
6.21
59.7
6.28
59.7
6.28
59.7
6.34
59.7
6.34
59.7
6.34
35.0
32.0
61.0
6.28
61.0
6.28
61.0
6.28
61.0
6.34
61.0
6.34
61.0
6.39
60.4
6.28
59.7
6.14
40.0
36.0
63.7
6.21
63.7
6.28
63.7
6.34
63.7
6.39
63.1
6.39
63.1
6.28
61.7
6.08
60.4
5.90
45.0
41.0
67.1
6.28
66.4
6.34
65.7
6.39
65.7
6.34
65.7
6.34
65.1
6.08
61.7
5.83
58.6
5.60
47.0
43.0
67.7
6.52
67.7
6.39
67.7
6.28
67.7
6.08
67.1
6.28
65.1
5.83
61.7
5.65
58.6
5.47
50.0
46.0
70.4
6.47
70.4
6.28
70.4
6.08
70.4
5.83
67.7
5.76
65.1
5.65
61.7
5.39
58.6
5.16
55.0
51.0
72.4
6.34
72.4
6.08
72.4
5.83
70.4
5.65
67.7
5.58
65.1
5.39
61.7
5.20
58.6
5.02
60.0
56.0
79.3
6.03
76.4
5.83
73.9
5.65
70.4
5.39
69.1
5.34
65.1
5.22
61.7
5.02
58.6
4.83
Capacity rated using ISO 5151—Test Rating Standard for Non-Ducted Heat Pumps.
Heating mode stable operation is ensured when the outdoor ambient wet-bulb temperature is between -4°F and 60°F.
Power Input (PI) in kW and includes compressor(s) and outdoor fan motor(s).
Rated with an equivalent piping length of 24.6 ft. and no change in elevation between the indoor and outdoor unit.
MBh = Net Capacity
R410A, 60 Hz
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
120
Outdoor Air
Temp
(°F) DB
DB
WB
Due to differences in test method and procedures, capacity data values provided in these
tables may differ from certified performance information published by AHRI or other
standardized testing agencies. AHRI testing protocol sets the volume of air flowing over
the coil at 444 CFM/ton and limits the number of indoor units connected to the system
being tested. LG conducts capacity tests using airflow rates and limits the number of
indoor units per system as stated in Table 4 (a and b) on pages 17–18, Table 5 on
page 19, and Table 14 on page 56.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PERFORMANCE DATA
|
41
PERFORMANCE DATA
Heating Capacity—4.4 Ton
Table 17b: ARUN053GS2 Heat Pump—Nominal Heating Capacity
Combination
Ratio (%)
Performance Data
100
90
80
Outdoor Air
Temp
(°F)
DB
WB
Indoor Air Temperature (°F) DB
59
61
64
67
|
73
76
80
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
40.9
6.56
40.9
6.72
40.9
6.88
40.9
6.95
40.3
7.00
40.3
7.00
40.3
7.00
40.3
7.00
-4
-4.4
0
-0.4
42.1
6.84
42.1
6.88
42.1
6.95
42.1
7.00
42.1
7.05
41.4
7.05
41.4
7.05
41.4
7.05
5.0
4.5
47.6
6.95
47.0
7.00
46.4
7.05
46.4
7.12
46.4
7.16
46.4
7.16
46.4
7.23
46.4
7.28
10.0
9.0
49.4
7.05
49.4
7.12
49.4
7.16
48.9
7.16
48.9
7.23
48.9
7.23
48.9
7.00
48.9
6.79
15.0
14.0
52.4
7.23
52.4
7.16
52.4
7.12
52.4
7.12
52.4
7.05
52.4
6.95
51.9
6.67
51.3
6.39
20.0
19.0
55.6
7.23
55.6
7.12
55.6
7.00
55.6
6.84
54.1
6.67
54.1
6.44
53.4
6.39
52.6
6.32
25.0
23.0
58.0
7.30
58.0
6.95
58.0
6.60
58.0
6.39
58.0
6.21
56.7
6.11
56.1
6.04
55.6
6.00
30.0
28.0
59.1
6.79
59.1
6.60
59.1
6.44
59.1
6.16
59.1
6.11
58.0
6.04
56.1
6.00
54.3
5.93
35.0
32.0
61.0
6.79
61.0
6.49
61.0
6.21
61.0
6.00
60.4
6.00
59.1
5.93
56.1
5.60
53.3
5.29
40.0
36.0
63.4
6.62
63.4
6.39
63.4
6.16
63.4
5.88
61.0
5.72
59.1
5.60
56.1
5.27
53.3
4.94
45.0
41.0
65.9
6.51
65.9
6.28
65.9
6.04
64.0
5.60
61.0
5.37
59.1
5.20
56.1
4.76
53.3
4.35
47.0
43.0
68.3
6.52
67.7
6.16
67.1
5.83
64.0
5.37
61.0
5.60
59.1
4.99
56.1
4.60
53.3
4.23
50.0
46.0
73.3
6.18
70.1
5.88
67.1
5.60
64.0
5.04
61.0
4.99
59.1
4.81
56.1
4.43
53.3
4.07
55.0
51.0
74.6
5.83
70.7
5.60
67.1
5.37
64.0
4.76
61.0
4.81
59.1
4.64
56.1
4.32
53.3
4.00
60.0
56.0
74.6
5.78
70.7
5.48
67.1
5.20
64.0
4.60
61.0
4.64
59.1
4.48
56.1
4.15
53.3
3.84
-4
-4.4
40.0
6.36
39.7
6.46
39.3
6.56
39.3
6.65
39.3
6.80
39.3
6.90
39.3
6.95
39.3
6.95
0
-0.4
41.1
6.46
40.9
6.56
40.4
6.65
40.4
6.70
40.4
6.85
40.4
6.92
40.4
7.05
40.4
7.00
5.0
4.5
45.4
6.56
45.4
6.65
45.4
6.75
45.4
6.80
45.4
6.90
45.0
6.95
45.0
7.10
45.0
7.25
10.0
9.0
48.4
6.70
48.0
6.75
47.7
6.80
47.7
6.85
47.7
6.95
47.7
7.00
47.3
6.80
46.9
6.60
6.64
15.0
14.0
51.4
6.41
51.4
6.26
51.4
6.11
51.1
6.01
51.1
5.81
51.1
5.72
48.0
6.16
45.1
20.0
19.0
54.1
6.01
54.1
5.91
54.1
5.81
54.1
5.72
53.0
5.47
52.1
5.42
50.0
5.42
47.9
5.42
25.0
23.0
57.7
6.03
57.7
5.72
57.7
5.42
56.6
5.32
54.9
5.27
53.3
5.27
50.6
5.12
47.9
4.97
30.0
28.0
60.4
6.09
60.4
5.67
60.4
5.27
57.7
5.17
54.9
5.12
53.3
5.12
50.6
5.02
47.9
4.92
35.0
32.0
61.4
6.16
61.0
5.62
60.4
5.12
57.7
5.07
54.9
5.02
53.3
5.02
50.6
4.92
47.9
4.83
40.0
36.0
66.0
6.11
63.1
5.57
60.4
5.07
57.7
5.02
54.9
4.97
53.3
4.92
50.6
4.88
47.9
4.83
45.0
41.0
67.1
6.06
63.7
5.52
60.4
5.02
57.7
4.97
54.9
4.96
53.3
4.88
50.6
4.78
47.9
4.68
47.0
43.0
67.1
5.83
63.7
5.47
60.4
5.12
57.7
4.73
54.9
4.92
53.3
4.38
50.6
4.04
47.9
3.72
50.0
46.0
67.1
5.65
63.7
5.27
60.4
4.92
57.7
4.58
54.9
4.43
53.3
4.23
50.6
3.94
47.9
3.67
55.0
51.0
67.1
5.45
63.7
5.07
60.4
4.73
57.7
4.43
54.9
4.23
53.3
4.08
50.6
3.79
47.9
3.52
60.0
56.0
67.1
5.30
63.7
4.92
60.4
4.58
57.7
4.28
54.9
4.13
53.3
3.99
50.6
3.69
47.9
3.43
-4
-4.4
40.0
5.60
39.3
5.70
38.6
5.78
38.6
5.86
38.6
5.95
38.6
6.04
38.6
6.08
38.6
6.13
0
-0.4
40.4
5.70
40.4
5.78
40.4
5.86
40.4
5.91
40.4
6.04
40.4
6.08
40.0
6.13
39.7
6.16
5.0
4.5
44.4
5.81
44.4
5.86
44.4
5.91
43.4
5.95
43.4
6.04
43.4
6.08
43.4
5.81
43.4
5.57
10.0
9.0
47.7
5.52
47.7
5.60
47.7
5.70
47.7
5.91
47.3
6.04
45.9
6.08
44.9
5.57
44.0
5.09
15.0
14.0
51.1
5.39
51.1
5.17
51.1
5.09
51.3
5.01
48.9
4.91
47.3
4.88
44.9
4.83
42.6
4.79
20.0
19.0
53.1
5.30
52.7
5.09
52.7
4.89
51.3
4.81
48.9
4.78
47.3
4.74
44.9
4.66
42.6
4.60
25.0
23.0
57.1
5.27
54.7
5.01
53.7
4.74
51.3
4.66
48.9
4.61
47.3
4.61
44.9
4.53
42.6
4.45
30.0
28.0
59.7
5.29
56.6
4.96
53.7
4.66
51.3
4.58
48.9
4.53
47.3
4.48
44.9
4.40
42.6
4.32
35.0
32.0
59.7
5.24
56.6
4.91
53.7
4.61
51.3
4.45
48.9
4.40
47.3
4.40
44.9
4.32
42.6
4.23
40.0
36.0
59.7
5.19
56.6
4.88
53.7
4.58
51.3
4.40
48.9
4.35
47.3
4.32
44.9
4.23
42.6
4.13
45.0
41.0
59.7
5.16
56.6
4.83
53.7
4.53
51.3
4.35
48.9
4.33
47.3
4.23
44.9
4.18
42.6
4.13
47.0
43.0
59.7
5.11
56.6
4.79
53.7
4.48
51.3
4.13
48.9
4.32
47.3
3.89
44.9
3.57
42.6
3.29
50.0
46.0
59.7
4.94
56.6
4.61
53.7
4.32
51.3
4.00
48.9
3.89
47.3
3.76
44.9
3.44
42.6
3.18
55.0
51.0
59.7
4.71
56.6
4.45
53.7
4.18
51.3
3.89
48.9
3.76
47.3
3.62
44.9
3.36
42.6
3.13
60.0
56.0
59.7
4.64
56.6
4.32
53.7
4.00
51.3
3.76
48.9
3.62
47.3
3.49
44.9
3.23
42.6
3.00
Capacity rated using ISO 5151—Test Rating Standard for Non-Ducted Heat Pumps.
Heating mode stable operation is ensured when the outdoor ambient wet-bulb temperature is between -4°F and 60°F.
Power Input (PI) in kW and includes compressor(s) and outdoor fan motor(s).
Rated with an equivalent piping length of 24.6 ft. and no change in elevation between the indoor and outdoor unit.
MBh = Net Capacity
R410A, 60 Hz
42
70
PERFORMANCE DATA
Due to differences in test method and procedures, capacity data values provided in these
tables may differ from certified performance information published by AHRI or other
standardized testing agencies. AHRI testing protocol sets the volume of air flowing over
the coil at 444 CFM/ton and limits the number of indoor units connected to the system
being tested. LG conducts capacity tests using airflow rates and limits the number of
indoor units per system as stated in Table 4 (a and b) on pages 17–18, Table 5 on
page 19, and Table 14 on page 56.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PERFORMANCE DATA
Heating Capacity—4.4 Ton
Table 17c: ARUN053GS2 Heat Pump—Nominal Heating Capacity
Combination
Ratio (%)
70
50
Indoor Air Temperature (°F) DB
59
61
64
67
70
73
76
80
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
MBh
PI
38.0
5.58
38.0
5.58
37.6
5.63
37.6
5.70
37.6
5.63
37.6
5.58
36.3
5.68
33.7
5.53
-4
-4.4
0
-0.4
39.3
5.67
39.3
5.63
39.3
5.70
38.9
5.75
38.9
5.75
38.9
5.63
36.7
5.76
34.1
5.57
5.0
4.5
44.0
5.67
44.0
5.55
43.6
5.78
42.3
5.70
41.9
5.70
40.1
5.63
38.4
5.32
36.9
5.04
10.0
9.0
47.0
5.48
47.7
5.14
45.7
5.14
44.9
5.55
42.7
5.55
41.4
5.45
39.3
5.01
37.3
4.60
15.0
14.0
50.4
5.32
49.1
5.07
47.0
5.07
44.9
5.22
42.7
5.19
41.4
4.99
39.3
4.60
37.3
4.23
20.0
19.0
52.3
5.25
49.6
5.02
47.0
5.02
44.9
5.06
42.7
4.88
41.4
4.68
39.3
4.32
37.3
3.99
25.0
23.0
52.3
5.22
49.6
4.99
47.0
4.88
44.9
4.58
42.7
4.43
41.4
4.28
39.3
3.94
37.3
3.62
30.0
28.0
52.3
5.17
49.6
4.91
47.0
4.61
44.9
4.28
42.7
4.13
41.4
3.97
39.3
3.67
37.3
3.39
35.0
32.0
52.1
4.88
49.6
4.61
47.0
4.35
44.9
4.05
42.7
4.02
41.4
3.76
39.3
3.49
37.3
3.24
40.0
36.0
52.3
4.79
49.6
4.46
47.0
4.17
44.9
3.90
42.7
3.87
41.4
3.61
39.3
3.34
37.3
3.10
45.0
41.0
52.3
4.56
49.6
4.28
47.0
4.02
44.9
3.87
42.7
3.79
41.4
3.49
39.3
3.23
37.3
2.98
47.0
43.0
52.3
4.41
49.6
4.13
47.0
3.87
44.9
3.64
42.7
3.76
41.4
3.38
39.3
3.15
37.3
2.95
50.0
46.0
52.3
4.30
49.6
4.02
47.0
3.76
44.9
3.52
42.7
3.38
41.4
3.26
39.3
3.05
37.3
2.83
55.0
51.0
52.3
4.10
49.6
3.87
47.0
3.64
44.9
3.41
42.7
3.26
41.4
3.15
39.3
2.93
37.3
2.72
60.0
56.0
52.3
3.99
49.6
3.76
47.0
3.52
44.9
3.29
42.7
3.20
41.4
3.08
39.3
2.85
37.3
2.64
-4
-4.4
37.7
5.07
37.7
5.11
37.3
5.14
38.0
5.17
36.6
5.20
35.6
5.75
33.7
5.29
32.0
4.86
0
-0.4
39.1
5.55
39.1
5.58
38.9
5.62
38.4
5.20
36.6
5.24
35.6
5.55
33.7
5.09
32.0
4.68
5.0
4.5
43.9
5.62
42.4
5.90
40.3
5.65
38.4
5.24
36.6
5.04
35.6
4.84
33.7
4.46
32.0
4.12
10.0
9.0
44.7
5.45
42.4
5.68
40.3
5.30
38.4
4.92
36.6
4.74
35.6
4.56
33.7
4.22
32.0
3.89
15.0
14.0
44.7
5.30
42.4
5.20
40.3
4.86
38.4
4.53
36.6
4.36
35.6
4.20
33.7
3.89
32.0
3.57
20.0
19.0
44.7
5.22
42.4
4.88
40.3
4.56
38.4
4.25
36.6
4.10
35.6
3.95
33.7
3.66
32.0
3.38
25.0
23.0
44.7
4.74
42.4
4.43
40.3
4.15
38.4
3.89
36.6
3.74
35.6
3.61
33.7
3.34
32.0
3.11
30.0
28.0
44.7
4.41
42.4
4.15
40.3
3.89
38.4
3.64
36.6
3.51
35.6
3.38
33.7
3.13
32.0
2.90
35.0
32.0
44.7
4.13
42.4
3.89
40.3
3.67
38.4
3.41
36.6
3.38
35.6
3.20
33.7
2.96
32.0
2.77
40.0
36.0
44.7
4.00
42.4
3.77
40.3
3.54
38.4
3.33
36.6
3.29
35.6
3.10
33.7
2.87
32.0
2.67
45.0
41.0
44.7
3.87
42.4
3.64
40.3
3.41
38.4
3.26
36.6
3.23
35.6
2.96
33.7
2.78
32.0
2.60
47.0
43.0
44.7
3.76
42.4
3.51
40.3
3.29
38.4
3.06
36.6
3.20
35.6
2.87
33.7
2.68
32.0
2.50
50.0
46.0
44.7
3.59
42.4
3.38
40.3
3.20
38.4
3.00
36.6
2.90
35.6
2.82
33.7
2.62
32.0
2.44
55.0
51.0
44.7
3.49
42.4
3.29
40.3
3.10
38.4
2.90
36.6
2.82
35.6
2.72
33.7
2.52
32.0
2.34
60.0
56.0
44.7
3.39
42.4
3.20
40.3
3.00
38.4
2.82
36.6
2.72
35.6
2.62
33.7
2.45
32.0
2.31
-4
-4.4
37.3
5.01
35.4
5.01
33.6
4.97
32.0
4.97
30.6
4.79
29.6
4.61
28.0
4.25
26.6
3.92
0
-0.4
37.3
5.27
35.4
5.53
33.6
5.17
32.0
4.81
30.6
4.63
29.6
4.45
28.0
4.10
26.6
3.79
5.0
4.5
37.3
5.17
35.4
4.84
33.6
4.53
32.0
4.22
30.6
4.07
29.6
3.92
28.0
3.62
26.6
3.34
10.0
9.0
37.3
4.88
35.4
4.56
33.6
4.27
32.0
3.99
30.6
3.84
29.6
3.71
28.0
3.43
26.6
3.16
15.0
14.0
37.3
4.48
35.4
4.20
33.6
3.94
32.0
3.67
30.6
3.54
29.6
3.41
28.0
3.16
26.6
2.93
20.0
19.0
37.3
3.85
35.4
3.94
33.6
3.71
32.0
3.46
30.6
3.34
29.6
3.23
28.0
3.00
26.6
2.78
25.0
23.0
37.3
3.85
35.4
3.61
33.6
3.38
32.0
3.16
30.6
3.05
29.6
2.95
28.0
2.73
26.6
2.54
30.0
28.0
37.3
3.56
35.4
3.38
33.6
3.18
32.0
2.98
30.6
2.87
29.6
2.78
28.0
2.59
26.6
2.39
35.0
32.0
37.3
3.38
35.4
3.18
33.6
3.00
32.0
2.82
30.6
2.77
29.6
2.64
28.0
2.45
26.6
2.27
40.0
36.0
37.3
3.28
35.4
3.08
33.6
2.90
32.0
2.72
30.6
2.68
29.6
2.55
28.0
2.37
26.6
2.19
45.0
41.0
37.3
3.16
35.4
2.98
33.6
2.78
32.0
2.65
30.6
2.65
29.6
2.47
28.0
2.32
26.6
2.17
47.0
43.0
37.3
3.03
35.4
2.87
33.6
2.72
32.0
2.55
30.6
2.64
29.6
2.39
28.0
2.24
26.6
2.09
50.0
46.0
37.3
2.96
35.4
2.78
33.6
2.64
32.0
2.47
30.6
2.39
29.6
2.32
28.0
2.19
26.6
2.06
55.0
51.0
37.3
2.88
35.4
2.72
33.6
2.55
32.0
2.39
30.6
2.34
29.6
2.26
28.0
2.11
26.6
1.96
60.0
56.0
37.3
2.80
35.4
2.64
33.6
2.47
32.0
2.34
30.6
2.26
29.6
2.19
28.0
2.06
26.6
1.93
Capacity rated using ISO 5151—Test Rating Standard for Non-Ducted Heat Pumps.
Heating mode stable operation is ensured when the outdoor ambient wet-bulb temperature is between -4°F and 60°F.
Power Input (PI) in kW and includes compressor(s) and outdoor fan motor(s).
Rated with an equivalent piping length of 24.6 ft. and no change in elevation between the indoor and outdoor unit.
MBh = Net Capacity
R410A, 60 Hz
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
60
Outdoor Air
Temp
(°F)
DB
WB
Due to differences in test method and procedures, capacity data values provided in these
tables may differ from certified performance information published by AHRI or other
standardized testing agencies. AHRI testing protocol sets the volume of air flowing over
the coil at 444 CFM/ton and limits the number of indoor units connected to the system
being tested. LG conducts capacity tests using airflow rates and limits the number of
indoor units per system as stated in Table 4 (a and b) on pages 17–18, Table 5 on
page 19, and Table 14 on page 56.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PERFORMANCE DATA
|
43
UNIT REFRIGERANT FLOW DIAGRAMS
Cooling Cycle Diagram
Figure 7: Cooling Cycle Flow Diagram—ARUN 036, 047, 053
Airflow
Airflow
T2
T3
T2
T3
T1
T1
Airflow
Airflow
Indoor Unit “A”
DC
Indoor Unit “B”
Fan
Fan
T5
Performance Data
T4
DC
T1
Space Temperature
Sensor
T2
IDU Refrigerant Entering
Temperature Sensor
T3
IDU Refrigerant Leaving
Temperature Sensor
T4
Outdoor Ambient
Temperature Sensor
T5
Coil Pipe Temperature
Sensor
T6
Suction Temperature
Sensor
T7
Compressor Discharge
Temperature Sensor
T8
Pipe Temperature Sensor
T9
Sub Cooler Outlet
Temperature Sensor
T10
Sub Cooler Inlet
Temperature Sensor
P1
Low Pressure Sensor
P2
High Pressure Cutout
P3
High Pressure Sensor
High Temp High
Pressure Vapor
Charging
Port
Charging
Port
P3
High Temp High
Pressure Liquid
Low Temp Low
Pressure Vapor
Solenoid (Hot Gas) Valve
Solenoid (Bypass) Valve
T6
Oil
Separator
Service Valve
P1
P2
Flow Regulator
Field Piping Connection
T7
Inverter
Comp.
4-Way Valve
Accumulator
Electronic Expansion
Valve (EEV)
Temperature Sensor
T9
Strainer
Low Pressure Sensor
Sub Cooler
T8
Pressure Switch
T10
Y-Branch
Sub Cooler EEV
High Pressure Sensor
Outdoor Unit
Coil
IDU Fan
44
|
PERFORMANCE DATA
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
UNIT REFRIGERANT FLOW DIAGRAMS
Heating Cycle Diagram
Figure 8: Heating Cycle Flow Diagram—ARUN 036, 047, 053
Airflow
Airflow
T2
T3
T2
T3
Indoor Unit “A”
T2
IDU Refrigerant Entering
Temperature Sensor
T3
IDU Refrigerant Leaving
Temperature Sensor
T4
Outdoor Ambient
Temperature Sensor
T5
Coil Pipe Temperature
Sensor
Fan
DC
Indoor Unit “B”
T6
Suction Temperature
Sensor
T7
Compressor Discharge
Temperature Sensor
T8
Pipe Temperature Sensor
T9
Fan
Sub Cooler Outlet
Temperature Sensor
T10
Sub Cooler Inlet
Temperature Sensor
T5
P1
Low Pressure Sensor
P2
High Pressure Cutout
P3
High Pressure Sensor
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
T4
Space Temperature
Sensor
Airflow
T1
Airflow
T1
DC
T1
High Temp High
Pressure Vapor
Charging
Port
Charging
Port
P3
High Temp High
Pressure Liquid
Low Temp Low
Pressure Vapor
Solenoid (Hot Gas) Valve
Solenoid (Bypass) Valve
Service Valve
T6
Oil
Separator
Flow Regulator
P1
P2
Field Piping Connection
4-Way Valve
T7
Electronic Expansion
Valve (EEV)
Inverter
Comp.
Accumulator
Temperature Sensor
Strainer
Pressure Sensor
T9
Pressure Switch
Sub Cooler
T8
Y-Branch
T10
High Pressure Sensor
Sub Cooler EEV
Outdoor Unit
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
IDU Coil
IDU Fan
PERFORMANCE DATA
|
45
OUTDOOR WIRING DIAGRAM
Symbol
Figure 9: Outdoor Unit Wiring Diagram
W
Fan A
U
V
Fan B
U
W V
Red
CN-POWER (Black)
Black
Yellow
CN(N)
CN-UVW
(White)
CN-MOTOR2
(Blue)
CN-MOTOR1
(White)
Inverter Board
CN-MAIN (Red)
Red
Black
CN-LGMV (White)
Red
Black
CN(L)
CN-FLASH WRITER (White)
REACTOR1
Performance Data
EEV
Blue
CN43
REACTOR1
EEV
Black
Black
CN44
CN40
CN38
Red
CN29
SW01S
Error Code
Display
SW02B
SW01B
CN05
L2
N2
SW02V
CN-INVERTER
CN04
CN41
CN17
Noise Filter
CN16
SW01V
CN15
L1
N1
CN14
SV
CN13
Thermister Connections(TH)
CN11
TH_SC_OUT
TH_SC_IN
TH_SC_L
CN33
CN10
4-WAY
CN27
CN32
CN30
Green/Yellow
Black
TH_DISCHARGE-A
TH_HEX1
CN34
TH_HEX2
CN09
Red
FUSE
250V 35A
L
TH_AIR
CN35
TH_SUCTION
TH_DISCHARGE-B
N
1Ø 208/230V 60Hz
T
N CN08
R
SODU SODU
IDU A IDU B
INTERNET DRY1 DRY2 GND
12V
CN1
Black
See Figure 61
See Figure 61
on page 75
Red
TO
INDOOR
UNITS
INDOOR
UNIT(S)
See Figure
See
Figure6060
on page 75
Color Legend
1 1
46
|
Parenthesis ()
Socket Color
No Parenthesis
Wire Color
G
Connection for flashing system EPROM
CN05
Connection for LGMV Service Tool
CN08
Power to main board
CN09
4-way reversing valve
CN10
Inverter compressor crank case heater-A
CN11
Not Used
CN13
Hot gas bypass valve solenoid
CN 14
Not Used
CN15
Not Used
CN16
Not Used
CN17
Not Used
CN27
Not Used
CN29
Communication with inverter board
CN30
High pressure sensor
CN32
Low pressure sensor
CN33
Subcooler outlet pipe thermistor (TH-SC_OUT)
CN33
Subcooler inlet pipe thermistor (SC_IN)
CN33
Subcooler liquid pipe thermistor (SC_L)
CN34
Compressor pipe thermistor (DISCHARGE-A)
CN34
Outdoor unit pipe thermistor 1 (HEX1)
CN34
Outdoor unit pipe thermistor 2 (HEX2)
CN35
Outdoor air thermistor (AIR)
CN35
Suction pipe thermistor (SUCTION)
CN35
High pressure sensor (DISCHARGE-B)
CN38
Electric expansion valve (Outdoor Coil)
CN40
Electric expansion valve (Subcooler)
CN41
Terminal for PI45 card connection
CN43
Not Used
CN44
Inverter compressor head pressure switch
CN-FLASHWRITER
Connection for flashing inverter board EPROM
CN-INVERTER
AC power to inverter
CN-LGMV
Connection for LGMV service tool
CN-MAIN
Communication with main microprocessor
CN-MOTOR1
Communication/power connection for motor1
CN-MOTOR2
Communication/power connection for motor2
CN-POWER
AC power from noise filter
CN-UVW
Power to Inverter Compressor
SW01S
Control system reset button
SW02V
Auto Address button
SW01V
DATACONFIRM
Reactor—Power conditioner to minimizes transient noise from the power source from entering the outdoor unit.
PERFORMANCE DATA
Description
CN04
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
L
Line (+) power connection 208–230/60/1
N
Neutral (-) power connection 208–230/60/1
Ground
SYSTEM ENGINEERING
"Building Ventilation" on page 48
"Equipment Selection Procedure" on page 51
"Placement Considerations" on page 58
"Clearance Requirements" on page 59
"LATS Multi V Pipe System Design Tool" on page 61
"Pipe Design Parameters" on page 62
"Pipe Layout Procedure" on page 63
"Piping Design Guide" on page 66
"Jobsite Connections" on page 77
"Mini Refrigerant Charge" on page 79
BUILDING VENTILATION
ASHRAE 62.1 and local codes specify the minimum volume of outdoor air that must be provided to an occupied space. Outdoor air is
required to minimize adverse health effects, and it provides acceptable indoor air quality for human occupants. The five methods that can be
used with Multi V systems to meet the requirements are summarized here.
Note:
Although we believe that building these ventilation methods have been portrayed accurately, none of the methods have been
tested, verified, or evaluated by LG Electronics, USA, Inc. In all cases, the designer, installer, and contractor should understand if the suggested method is used, it is used at their own risk. LG Electronics USA, Inc. takes no responsibility and offers
no warranty, expressed or implied, of merchantability or fitness of purpose if this method fails to perform as stated or intended.
For a complete copy of Standard 62.1-2010, refer to the American Standard of Heating and Air Conditioning Engineers
(ASHRAE) website at www.ashrae.org.
System Engineering
For more information on how to properly size a ventilation air pretreatment system, refer to the article, "Selecting DOAS Equipment with Reserve Capacity" by John Murphy, published in the ASHRAE Journal, April 2010.
Method 1: Decoupled Dedicated Outdoor Air (DDOAS)
Provide a separate, dedicated outdoor-air system designed to filter, condition, and dehumidify ventilation air and deliver it directly to the conditioned space through a separate register or grille. This approach requires a separate independent ventilation duct system not associated with
the Multi V system.
Note:
Advantages:
Disadvantages:
In all installations, LG
recommends using
the DDOAS method.
Does not add additional heating or cooling loads to indoor units.
May be used with a full lineup of the indoor units.
If the outdoor air unit fails, the resulting untreated air will be readily noticed by
the occupants.
The outdoor air unit may supply neutral air to the occupied space even when the
Multi V indoor unit fan changes speed or cycles on and off. DDOAS controls do
not have to be interlocked with the Multi V system.
In lieu of installing localized smaller outside air treatment equipment throughout
the building, this method centralizes the ventilation outside air source making
service and filter changes easier and less disruptive for the building occupants.
Indoor unit operation and performance will not be affected by the condition of
outdoor air.
Third-party demand control ventilation controls are more readily accommodated.
Ceiling space is required
to accommodate ductwork
between the centralized
outdoor air unit and ceiling
diffusers.
Ceiling
Ceiling Diffuser
Diffuser
Multi
Multi V
V Ceiling
Ceiling CasCassette
sette Indoor
Indoor Unit
Unit
Outdoor Air
Outdoor
Air
Unit/ERV
Unit/ERV
48
|
SYSTEM ENGINEERING
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
BUILDING VENTILATION
Method 2: Unconditioned Outdoor Air (Non-Ducted, Natural Ventilation)
Natural ventilation devices, such as operable windows or louvers may be used to ventilate the building when local code permits. The open
area of a window or the free area of a louver must meet the minimum percentage of the net occupied floor area.
Advantages:
Disadvantages:
None
Occupants control the
volume of the ventilation air manually.
Useful for historic buildings that have no ceiling space available for
outdoor air ductwork.
May be used with the
full lineup of Multi V
indoor units.
In some locations, it may be difficult to control humidity levels when
windows are open.
Thermal comfort levels may be substandard when windows are open.
Indoor units may have to be oversized to account for the added heating and cooling loads when windows are open.
Provides outdoor air to perimeter spaces only. Additional mechanical
ventilation system may be required to satisfy requirements for interior
spaces.
Outdoor air loads may be difficult to calculate since the quantity of
outdoor air is not regulated.
May affect indoor unit proper operation when open.
Method 3: Unconditioned Outdoor Air Ducted to Indoor Units
Untreated outdoor air is channeled through a duct system that is piped to the return air duct on concealed indoor units or to the chassis of
1-way and 4-way cassettes.
Note:
Outside air may flow
backward through the
return air-filter grille
when the indoor unit fan
speed slows or stops in
response to changes in
the space load. This may
result in captured particulate on the filter media
being blown back into the
conditioned space.
Advantages:
Disadvantages:
May require less ductwork if
indoor units are placed near
outdoor walls or roof deck.
Controls must be interlocked to
shut off the outdoor air supply fan
when the space is unoccupied.
Third-party demand-control ventilation controls may be installed
in order to regulate outdoor intake
based on the CO2 levels of the
occupied space.
Fan(s) will be required to push outdoor air to the indoor unit. Indoor
units are engineered for low sound levels and are not designed to
overcome the added static pressure caused by the outdoor air source
ductwork.
Ventilation air must be pre-filtered before mixing with the return air
stream. LG indoor cassette models are configured to introduce the
ventilation air downstream of the return air filter media.
Ducted, 1-way and 4-way cassette models are the only indoor units that
accept the connection of an outdoor air duct to the unit case.
Mixed air conditions must be between a minimum of 59°F DB while
operating in Heating mode and a maximum of 76°F WB while operating
in Cooling mode. Depending on the ventilation air volume requirement,
the location choices are limited where untreated outside air may be
introduced to the building using this method.
Larger indoor units may be required to satisfy for additional outdoor air.
Motorized dampers may be required to prevent outdoor air flow through
the indoor unit when the indoor unit is not operating.
An LG Dry Contact adapter may be necessary to interlock the motorized
damper with the indoor unit.
While operating in Heating mode, the untreated outdoor air may delay
the start of the indoor unit fan impacting building comfort.
In most cases, in lieu of using the factory mounted return-air thermistor
on indoor units, a remote wall temperature sensor or zone controller will
be needed for each indoor unit to provide an accurate reading of the
conditioned area temperature.
Indoor Unit
OA Wall Cap
Damper
Flange
(O.D. 6")
Inline Fan
Ventilation
Kit
Inline Fan
Front Panel
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SYSTEM ENGINEERING
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49
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
Note:
BUILDING VENTILATION
Method 4: Unconditioned Outdoor Air (Non-Ducted, Fan Assisted Ventilation)
When approved by local codes, the fan assisted ventilation method uses exhaust fans to remove air from the building, and outdoor air is
drawn into occupied spaces through a wall louver or gravity roof intake hood. Supply fans can also be used to push the outdoor air into the
space and building positive pressure will vent the exhaust air through louvers or roof-mounted exhaust hoods. Outdoor air is neither cooled
nor heated before entering the building.
Note:
Advantages:
Disadvantages:
This may result in
loss of building pressurization control,
increasing infiltration
loads with adverse
effects.
Outdoor air may be manually controlled by the occupant or automatic
controls may be installed to open/close outdoor air dampers or to turn on/
off ventilation fans.
Useful for large open spaces like warehouses, garages, and workshops.
Outdoor air volume is a known quantity. Air loads may be easier to calculate since fans will regulate the amount of outdoor air.
May be used with a full lineup of Multi V indoor units.
In some locations of the country,
it may be difficult to control
humidity levels while outdoor air
louvers/hoods are opened.
Thermal comfort levels may
be substandard when louvers/
hoods are opened.
Indoor units may have to be
oversized to account for the
added heating/cooling loads
when louvers/hoods are open.
Hot, cold, and/or humid areas
may be present if the outdoor air
is not evenly distributed to the
different spaces.
System Engineering
Roof Fan
OA Wall
Louver
Damper
Method 5: Coupled Dedicated Outdoor Air (CDOAS)
A separate, dedicated outdoor air system delivers air directly to a Multi V indoor unit or to the return air duct system. After mixing with the
return air stream, ventilation air passes through the indoor unit and into the conditioned space. The pretreatment system is capable of filtering, conditioning, and dehumidifying outdoor air to room neutral conditions.
Note:
Advantage:
Disadvantages:
Outside air may flow
backward through the
return air-filter grille
when the indoor unit
fan speed is reduced
or stops when the
space load is satisfied. This may result
in captured particulate on the filter media being blown back
into the conditioned
space.
Separate ceiling registers
or grilles for introduction
of the outside air to the
conditioned space may be
avoided.
Ducted, 1-way and 4-way cassette indoor units are the only models designed for direct connection of an outside air duct.
The building occupant may not notice the outdoor air pretreatment system
has malfunctioned until the unconditioned outdoor air exceeds the indoor
unit mixed air limits of 59°F DB for heating and 76°F WB for cooling.
If the coil entering air condition limitation is exceeded, the indoor unit may
malfunction and prevent the indoor unit from operating.
If the outdoor air unit cooling or heating system fails, the malfunction may
be masked by the indoor unit ramping up operating parameters to compensate for the failure.
Motorized dampers may be required to prevent outdoor air from entering
the indoor unit while the indoor unit has cycled off.
An LG Dry Contact adapter is necessary to interlock the motorized damper
with the indoor unit fan operation.
In lieu of using the factory mounted return-air thermistor, a remote wall
temperature sensor or zone controller may be required to provide an accurate conditioned space temperature reading.
Indoor Unit
Indoor Unit
Flange (O.D. 6")
Flange (O.D. 6")Ventilation
Ventilation Kit Front
Front Panel
Outdoor Air
Unit/ERV
50
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SYSTEM ENGINEERING
Panel
Kit
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EQUIPMENT SELECTION PROCEDURE
ARUN 036, 047, 053
Always use LATS Multi V Software
To properly select and size Multi V system components, follow
these guidelines:
•
•
•
•
•
Zone the building
Determine the ventilation method
Select the indoor unit(s)
Select the outdoor unit
System sizing checks
-- Calculate the Corrected Capacity Ratio (CCR)
-- Determine the system Combination Ratio (CR)
-- Determine the Running (indoor) Unit Ratio (RUR)
When using the LATS Multi V software, the default indoor design
day conditions of 80.6°F DB / 67°F WB in cooling mode and 68°F
DB / 56.7°F WB in heating mode may be adjusted to reflect the designer's preferred indoor room design temperature. These indoor
room temperature values are the room thermostat setpoints and
should not be confused with entering coil conditions.
Note: Data provided in the LATS tree mode diagram or
report file is not valid unless the Auto-Piping and System
Check routines are run without errors. Errors will be
reported immediately in pop-up dialog boxes or red lines
surrounding indoor unit(s) and/or along pipe segments.
If errors are indicated, modify the pipe system design
and re-run LATS.
Zone the Building
Multi V Mini Heat Pump is a two-pipe heat pump system that can
cool or heat, but not both simultaneously. Therefore, the designer
should combine spaces with similar load profiles located near or
adjacent to each other into “thermal zones.” Calculate the peak
cooling and heating loads for each thermal zone.
Determine the Ventilation Method
Decide how ventilation air will be introduced to each space. Add
ventilation load(s) to the appropriate indoor unit(s) design cooling and heating loads only if the ventilation air treatment system
does not provide room neutral air. Some models of Multi V indoor
units are factory provided with or have accessories available that
accommodate the direct connection of ventilation ductwork to
the unit. However, there are product limitations and additional
considerations that may need to be understood when using direct
connection accessories. For more information, contact your LG
applied equipment representative. Go to www.LG-VRF.com to find
your representative and technical product information.
room neutral, ventilation air directly to the space. When
pretreated, ventilation air is provided, remember to deduct the ventilation airload(s) from the total load before
sizing the indoor unit(s). Local codes or other professional design guidelines, such as ASHRAE 62.1, will dictate
the volume of ventilation air required.
It may be prudent to oversize the dedicated outdoor air
system considering there will be a few days of the year
when weather conditions exceed the design day conditions. This will minimize the possibility of ventilation air
conditions causing the indoor unit's entering air temperature to fall outside the approved design temperature
range. For more information on how to properly size a
ventilation air pretreatment system, refer to the article,
"Selecting DOAS Equipment with Reserve Capacity" by
John Murphy, published in the ASHRAE Journal, April
2010.
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
The following procedure should not replace LG’s LATS Multi V
complimentary selection software, but should instead be used in
conjunction with it. Contact your LG representative to obtain a
copy of the software and the user’s manual.
Note: In all cases, LG recommends ducting pretreated,
Select the Indoor Unit(s)
Determine how many indoor units will be required. Refer to Table
1a to obtain the maximum number of indoor units allowed on a
system. If an indoor unit will serve more than one space (i.e.
ducted indoor unit or cassette equipped with up to two side branch
ducts), combine the space and ventilation loads for all rooms
served. If the quantity of indoor units exceeds the maximum
allowed for the outdoor model selected, consider increasing the
size of the outdoor unit or split the indoor units into two groups
served by separate outdoor units.
Calculate the entering mixed air conditions for each indoor unit.
The mixed-air temperature must be between 57°F and 76°F WB in
Cooling mode and between 59°F and 80°F DB in Heating mode.
Note: When the indoor unit entering air temperature
is outside the cataloged operational limits, the system
may continue to operate properly; however, operational
abnormalities may occur. These include coil frosting, low
or high suction temperature, low or high head pressure,
low heating discharge temperature, or complete system
shutdown.
To calculate the indoor unit entering mixed air temperature:
MAT =
(RAT x %RA) + (OAT x %OA)
100
Where
MAT = Mixed air temperature
RAT = Return air temperature
OAT = Outdoor air temperature
%RA = Percentage of return air
%OA = Percentage of outdoor air
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SYSTEM ENGINEERING
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51
EQUIPMENT SELECTION PROCEDURE
ARUN 036, 047, 053
Note: Avoid over-sizing indoor units in an attempt to
increase the room air recirculation rate. VRF systems are
designed for minimum airflow over the coil to maximize
latent capacity while cooling, maintain a comfortable,
consistent discharge air temperature while heating, and
minimize fan motor power consumption.
To properly size indoor unit(s), begin by referring to the output report
provided by LG’s LATS Multi V software and note the appropriate
corrected cooling and heating capacity for each indoor unit for the
cooling and heating design days.
System Engineering
In LATS, the corrected cooling capacity is different from the
nominal cooling capacity because the corrected capacity includes
changes in unit performance after considering refrigerant line pressure drop, the system's Combination Ratio (CR), and the effect
design ambient operating conditions has on the indoor unit's cooling
capability.
The building sensible cooling load is typically the critical load to
satisfy. In coastal areas or humid applications, such as high occupancy spaces, both the latent and sensible cooling loads should be
considered. In areas where the cooling and heating loads are similar
or the heating load may exceed the total cooling load, the designer
should verify the indoor unit selection satisfies both the heating and
cooling requirements.
Check the indoor unit's cooling capacity. If the system is installed
at a significant elevation above sea level, it may be appropriate to
adjust the cooling capacity for changes in air density. Apply the
appropriate altitude correction factor for the building’s location to the
outdoor and indoor units.
After applying the factor, verify the sensible (and total) corrected
cooling capacity for each indoor unit is at least equal to the sum of
the appropriate cooling design day space load(s) (plus ventilation
load(s) if applicable) for the space(s) served by the indoor unit.
Next, check the indoor unit heating capacity. Begin by finding the
corrected heating capacity detailed in the LATS report for each indoor unit. The corrected heating capacity is again different from the
nominal heating capacity because the corrected capacity includes
changes in unit performance after considering refrigerant line pressure drop and design ambient operating conditions on the indoor
unit's heating capability. If the system is installed at a significant
elevation above sea level, adjust the heating capacity for changes
in air density. Apply the appropriate altitude correction factor for the
building’s location. Multiply the corrected heating capacity detailed
in the LATS report for each indoor unit by the altitude correction factor selected.
Verify that the actual corrected heating capacity for each indoor unit
is at least equal to the sum of the appropriate heating design day
building load (plus the ventilation loads if applicable) for all spaces
served by the indoor unit.
52
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SYSTEM ENGINEERING
Select the Outdoor Unit
Table 18: Cataloged Ambient Air Operating Temperature Range
Multi V Mini
Cooling Mode (°F DB)
Heating Mode (°F WB)
23 – 115
(-4) – 60
Note:
Multi V Mini outdoor unit(s) may have to operate in
weather conditions more extreme than a typical design day.
Design days are the days of the year that either cooling or
heating capacity is needed the most. In light of this, it may
be prudent to size the outdoor unit considering the anticipated worst weather day conditions to ensure adequate
capacity year round.
Begin the selection of the outdoor unit by selecting a size that meets
the cooling capacity requirement. Then verify the selected unit
meets the heating capacity requirement. Find the appropriate capacity table on pages 26–39 for the outdoor unit chosen. Locate the
outdoor unit cooling and heating capacity values at the specified
ambient design conditions.
When design outdoor ambient conditions are outside the cataloged
air-cooled outdoor unit operating range, the net refrigeration effect
(capacity) delivered to the indoor units cannot be guaranteed. Under
these conditions, the possibility exists that the liquid injection valve
or hot gas bypass valve in the outdoor unit may be open. When
open, the outdoor unit will sacrifice capacity to maintain operational
stability. As a result, the outdoor unit’s net refrigeration effect available for use by the indoor units will be slightly reduced under certain
extreme ambient air conditions.
Additionally, when the designer provides the LATS software with
outdoor ambient air design conditions that are above or below the
cataloged operational temperature range, the software will override
the designers specified conditions and size the indoor and outdoor
units and pipe system using the maximum or minimum cataloged
ambient air operating temperature.
Also, it is important to know that the report generated by LATS (.xls
format) will reflect the outdoor ambient air conditions the designer
provides, but the indoor and outdoor unit(s) cooling and heating corrected capacities calculated and shown in the report will be based on
the cataloged ambient air operating temperature limits of -4°F for the
heating design day and 115°F for the cooling design day. On these
projects, the designer must manually estimate the corrected cooling
and heating capacity of the outdoor unit when specified ambient
conditions are outside the cataloged range.
Note: To roughly estimate outdoor unit capacity at condi-
tions outside the cataloged ambient air operating temperature range, manually extrapolate performance information provided in the appropriate outdoor unit engineering
manual.
In lieu of designing for extreme weather conditions beyond the
cataloged temperature range, consider limiting the maximum and/
or minimum temperature of the air around the Multi V Mini outdoor
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EQUIPMENT SELECTION PROCEDURE
ARUN 036, 047, 053
After selecting an outdoor unit model and the outdoor unit's corrected cooling and heating capacity has been determined, there may
be additional capacity correction factors to consider.
In Cooling mode, two correction factors may apply—one for the elevation difference between the outdoor unit and the indoor unit(s) and
a second for the altitude above sea level. If the corrected cooling
capacity was manually calculated, apply the appropriate elevation
difference factor found in either Table 15 or Table 16 on page 56
(choice of table depends on the architecture of the system design).
Multiply the manually calculated outdoor unit corrected cooling capacity by the elevation difference correction factor. If the corrected
cooling capacity was derived from the LATS report, this elevation
difference correction factor was already applied to the system design
by LATS and no action will need to be taken.
If the system is installed at a significant elevation above sea level,
the outdoor unit capacity will be affected by air density. Apply the
appropriate altitude correction factor for the building’s location to
the outdoor unit capacity. The result is the actual corrected cooling
capacity of the outdoor unit after all potential correction factors are
considered.
After applying the appropriate cooling correction factors to the
outdoor unit, verify the actual cooling capacity is at least equal to the
total building load (considering building diversity, if applicable).
Next, determine the outdoor unit’s actual corrected heating capacity.
Two correction factors may apply—one for operating the outdoor unit
with frost on the coil, and one for altitude above sea level. The impact of frost accumulation on the outdoor unit coil can be calculated
by LATS or manually by the system designer. In certain weather
conditions, frost may form and accumulate on the air-cooled outdoor
unit coil at design day conditions. If design day conditions are below
the dew-point of the surrounding air, frost is less likely to form on the
coil and a frost accumulation correction factor may not need to be
When frost does accumulate on the outdoor unit coil, the outdoor
unit capacity is affected and a defrost algorithm will start automatically. The timing between defrost periods is determined by the
system's ability to achieve a target head pressure value. If frost
accumulation is expected to occur at or near the winter design
day conditions, LATS will automatically apply a frost accumulation
factor if the check box labeled “Defrost Factor” in the outdoor unit
selection dialog box is marked. The dialog box can be accessed by
double-clicking on the outdoor unit image. If checked, the corrected
outdoor unit capacity provided by the LATS report and displayed
on the tree mode piping diagram will be automatically adjusted for
outdoor unit coil frost accumulation.
To manually apply the frost accumulation factor, multiply the outdoor
unit’s manually calculated heating capacity or corrected heating
capacity reported in LATS (verify the "Defrost Factor" check box was
not marked) by the appropriate frost accumulation factor found in
Table 21.
If the Multi V Mini system will be installed at a significant elevation
above sea level, apply the frost accumulation factor (if necessary) to
the corrected Heating capacity, and then multiply the resultant by the
appropriate altitude correction factor.
After applying the appropriate heating correction factors, verify the
outdoor unit actual corrected heating capacity is at least equal to the
sum of the peak heating loads for all spaces and/or thermal zones
served by the system.
System Sizing Checks
Calculate the Corrected Capacity Ratio (CCR)
The system’s CCR is defined as the building total load divided by the
outdoor unit corrected capacity after all applicable correction factors
are applied. Calculate this ratio for both the cooling and heating
design days.
CCR%(Clg) =
CCR%(Htg) =
(
(
Total Cooling Block Load
Actual Corrected Outdoor
Unit Cooling Capacity
Heating Peak Load
Actual Corrected Outdoor
Unit Heating Capacity
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x 100 ≤ 100%
x 100 ≤ 100%
SYSTEM ENGINEERING
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53
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
Limit the surrounding outdoor unit air temperature by providing a
ventilated equipment enclosure equipped with an auxiliary heat
source. On heating days, the auxiliary heat source will provide the
building engineer the ability to temper and control the minimum air
temperature surrounding the outdoor unit(s). On extremely cold
days, it may be more advantageous to operate the auxiliary heating equipment and limit the minimum ambient temperature in the
enclosure in lieu of investing additional capital to install an extremely
over-sized and de-rated Multi V outdoor unit. The enclosure also
eliminates the potential operational problems caused by snow and
ice. During the cooling season, the outdoor unit(s) will be protected
from the adverse effects of direct sunlight.
considered.
(
(
unit or consider a Multi V water-cooled alternative. These strategies
are common on air-cooled projects in northern climates to eliminate
“extreme” over-sizing of the outdoor unit(s).
EQUIPMENT SELECTION PROCEDURE
ARUN 036, 047, 053
System Engineering
The outdoor unit selected should be large enough to offset the total
cooling block load for all spaces served by the VRF system during
the peak cooling load hour on the cooling design day (account for the
ventilation air's cooling total load if ventilation air is not pretreated to
room neutral conditions). Therefore, the corrected cooling capacity
ratio (CCR%(clg)) should never exceed 100%. If the corrected cooling
capacity ratio exceeds 100% (plus building diversity if considered),
increase the size of the outdoor unit or change the system design
by moving some of the building load and associated indoor unit(s) to
another Multi V system.
The outdoor unit should also be large enough to offset the sum of the
building’s space heating loads without considering building diversity. In the heating season, it is typical that all spaces served by the
system will peak simultaneously in the early morning, thus building
diversity should never be considered. If the corrected heating capacity ratio (CCR%(htg)) exceeds 100%, increase the size of the outdoor
unit , enclose the outdoor unit and provide control of the surrounding
air conditions, or change the system design by moving some of the
building load to another Multi V system.
Understanding the Combination Ratio (CR)
When first introduced to Variable Refrigerant Flow (VRF) technology,
the designer often compares the system components with those of
a traditional split-system. The VRF outdoor unit(s) is compared to a
commercial split-system condensing units. Indoor units are compared with traditional fan coils and other forms of commercial and/
or residential air moving products. The significant difference being
a traditional heat pump system is comprised of a single air handler
with a single condensing unit in a “one to one” relationship. A VRF
system typically is comprised of a single frame unit (or multi-frame
outdoor unit operating as a single unit) piped to numerous indoor
units forming a “one to many” relationship between the outdoor and
indoor units. With the introduction of the one to many relationship
between VRF system ODU and IDU’s, VRF manufacturer’s introduced a new component relationship concept known as Combination
Ratio (CR) to the industry.
Calculating the operating saturated suction temperature of a traditional split-system serves the same purpose as calculating the CR.
Both calculations prevent mismatching system components.
Properly Matching Traditional Commercial Split-System Components
To properly match a traditional split-system (or split-system heat
pump) condensing unit with an air handler equipped with a direct
expansion coil, the designer would generate a refrigeration system
cross plot diagram to reveal the system’s balance point.
To generate a refrigeration system cross plot diagram, the manufacturer’s computerized evaporator coil selection program is used to
generate a graphical representation of the evaporator performance
at indoor design conditions. To generate the graph, the physical
54
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SYSTEM ENGINEERING
characteristics of the evaporator coil design are entered into the
selection program and frozen. The designer will typically run the program a minimum of three times, each time making a selection with a
different specified evaporator coil capacity. One selection condition
will be done using the engineer’s outdoor unit scheduled capacity,
one at a higher and finally one at a lower capacity value.
The program will return the corresponding evaporator saturated
suction temperature (SST) for each capacity specification. Each
evaporator performance data point (MBh vs. SST) is subsequently
plotted on the outdoor unit’s capacity performance chart. A line
is drawn between the plotted points. The drawn line depicts the
evaporator coils capacity at various saturated suction temperatures.
The condensing unit’s capacity performance lines are provided by
the outdoor unit manufacturer and are graphical representations of
the unit’s performance at various ambient air temperatures. The
system’s balance point and operating saturated suction temperature
is where the evaporator capacity performance line crosses the appropriate condensing unit capacity performance line. The designer
then identifies the system capacity and operating saturated suction
temperatures at the balance point.
If the evaporator coil is too large or the condensing unit is too small,
the system’s operating saturated suction temperature will be too high
to adequately cool the compressor. If the evaporator coil is too small
or the condensing unit is too large, the system’s operating saturated
suction temperature will be too low and the possibility of slugging the
compressor with liquid refrigerant exists. Therefore, if a split system
is designed using mismatched components where there is an excessive difference in the heat transfer surface area of the evaporator coil
relative to the condenser coil, the longevity of the system’s compressor will be at risk.
Properly Matching VRF System Components
The same refrigeration theory and component matching verification
applies to VRF systems. However, instead of the designer calculating the system’s saturated suction operating temperature to verify a
proper size match between the evaporator and condenser coils, VRF
system designers must calculate and check the system ’s CR. If the
system’s CR is greater than 130%, the combined heat transfer surface area of all connected indoor units will be greater than the heat
transfer surface of the outdoor unit(s), which under certain operating
conditions, may raise the saturated suction operating temperature to
an unacceptable level and result in a VRF system malfunction. If the
system’s CR is less than 50%, the combined heat transfer surface
area of all connected indoor units is much less than the heat transfer
surface of the outdoor unit(s). Under certain operating conditions,
this may lower the saturated suction operating temperature to an
unacceptable level, and result in a VRF system malfunction.
Compressor technology, system operational limitations, and the
physical characteristics of R-410a refrigerant are very similar for
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EQUIPMENT SELECTION PROCEDURE
ARUN 036, 047, 053
all VRF systems. Manufacturers of VRF equipment set acceptable
system design CR parameters. LG limits the CR of a Multi V system
to be between 50% and 130%. Even though a VRF manufacturer
designs a system with what could be perceived as an excessive CR,
the system’s operating saturated suction temperature must be maintained in a similar operating temperature range as a VRF system designed with a CR between 50% and 130%. In general, compressor
failures caused by excessive component mismatch are typically not
revealed until the VRF system has operated for a substantial period
of time. If a failure occurs, it will likely occur at peak load conditions.
How to Determine the System CR
For example,
If the CR falls below 50%, select a smaller outdoor unit or consider
adding more or larger indoor unit(s) to the system. This situation
is common on multi-phase projects where the design calls for the
majority of indoor units to be added to the system at a later date. To
raise the CR above the minimum 50% requirement:
1. Consider adding additional indoor units on the first phase.
2. Design two smaller systems in lieu of a single larger system.
Connect all “first phase” indoor units to the outdoor unit being
installed on the first phase and delay the installation of the additional outdoor unit until a later date.
To avoid the potential of designing a system that may operate with
an excessively high (or low) saturated suction temperature leading to
premature compressor failure, do the following:
1. Design conservatively.
2. Verify the system’s CR is between 50% and 130%.
If a VRF system has an outdoor unit with a nominal capacity of C
and four indoor units having nominal capacity ratings of W, X, Y, and
Z respectively, the CR would be determined as follows:
W+X+Y+Z
x 100
CR% =
C
(
(
Note:
Multi V systems will not start, operate, nor can they
be commissioned if the CR is outside the allowable 50% to
130% range.
If the CR is over 100%, the designer is under-sizing the outdoor unit
relative to the combined nominal capacity of the connected indoor
units. In some applications, under-sizing of the outdoor unit is prudent as it reduces the initial equipment investment and will properly
perform as long as the designer:
1. Knows the indoor unit(s) is oversized relative to the actual load(s) in
the spaces served.
2. Knows the space loads will peak at different times of the day (i.e.
building has "load diversity").
In some designs, over-sized indoor units may be unavoidable in
cases where the smallest size indoor unit available from LG is larger
than what is necessary to satisfy the space load. This scenario may
occur when an indoor unit selection one size down from the selected
unit is slightly short of fulfilling the design load requirements and the
designer must choose the next largest size unit.
Note:
If the outdoor unit is properly sized to offset the building’s total cooling block load and the system's CR is above
130%, indoor units are likely oversized. In applications where
all indoor units are “right-sized” and there is no building diversity, the system’s CR will likely be ≤100%.
If the CR is above 130%, review the indoor unit choices and downsize indoor units, or select a larger outdoor unit. Consider moving
indoor units to another Multi V, Flex-Multi, or single-split system if the
Due to our policy of continuous product innovation, some specifications may change without notification.
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SYSTEM ENGINEERING
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55
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
The system's CR is determined by comparing the nominal capacity
of all connected indoor units with the nominal capacity of the outdoor
unit serving them. Locate nominal capacity information for indoor
and outdoor units in the General Data tables of their respective
engineering manuals.
outdoor unit size cannot be increased.
EQUIPMENT SELECTION PROCEDURE
ARUN 036, 047, 053
Table 19: Outdoor Unit Cooling Capacity Correction Factor - Indoor Units above Outdoor Unit
Equivalent Pipe Length in Feet (ELF)*
Elevation Differences (ft)
25
33
66
98
131
164
197
230
263
295
328
0
1.00
0.99
0.97
0.95
0.93
0.91
0.88
0.87
0.85
0.83
0.83
0.82
25
1.00
0.99
0.97
0.95
0.93
0.91
0.88
0.87
0.85
0.83
0.83
0.82
33
0.99
66
≥ 361
0.97
0.95
0.93
0.91
0.88
0.86
0.85
0.83
0.82
0.82
0.96
0.95
0.93
0.9
0.88
0.86
0.85
0.83
0.82
0.82
98
0.94
131
0.92
0.9
0.88
0.86
0.84
0.83
0.82
0.82
0.92
0.9
0.88
0.86
0.84
0.83
0.82
0.82
0.9
0.88
0.86
0.84
0.83
0.82
0.82
≥ 361
164
* ELF = Equivalent Pipe Length in Feet—Sum of the actual pipe length plus allocations for pressure drop through elbows, valves, and other fittings in equivalent length.
Table 20: Outdoor Unit Cooling Correction Factor - Outdoor Unit above Indoor Units
System Engineering
Equivalent Pipe Length in Feet (ELF)*
Elevation Differences (ft)
25
33
66
98
131
164
197
230
263
295
328
0
1.00
0.99
0.97
0.95
0.93
0.91
0.9
0.87
0.88
0.84
0.86
0.84
25
1.00
0.99
0.97
0.95
0.93
0.91
0.9
0.87
0.88
0.84
0.86
0.84
0.99
0.98
0.95
0.93
0.91
0.9
0.88
0.88
0.84
0.86
0.84
33
66
0.98
98
0.95
0.93
0.91
0.9
0.88
0.88
0.84
0.86
0.84
0.96
0.93
0.91
0.9
0.88
0.89
0.84
0.86
0.84
0.93
0.91
0.9
0.88
0.89
0.84
0.86
0.84
131
* ELF = Equivalent Pipe Length in Feet—Sum of the actual pipe length plus allocations for pressure drop through elbows, valves, and other fittings in equivalent length.
Table 21: Outdoor Unit Frost Accumulation Factor (Heating)
Entering DB (ºF)
19.4
23.0
26.6
32.0
37.4
41.0
44.6
De-rate Factor
0.98
0.95
0.93
0.86
0.93
0.96
1.0
At 85% outdoor air relative humidity.
The frost accumulation factor does not account for effects of snow accumulation restricting airflow through the outdoor unit coil.
56
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SYSTEM ENGINEERING
Due to our policy of continuous product innovation, some specifications may change without notification.
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PLACEMENT CONSIDERATIONS
Outdoor Unit Minimum Clearance
General Mounting
Securely attach the outdoor unit to a condenser pad, base rails, or other approved mounting platform that has been securely anchored to the
ground or building structure. Refer to Figures 10 through 13, and follow the applicable local code for clearance, mounting, anchor, and vibration attenuation requirements set fourth by the structural engineer.
Figure 10: Outdoor Unit—Mounting and Service Clearances (Plan View)1
24-3/8
Bolt Diameter - 1/2” (typical of 4)
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
14-3/8
12” Min.
Maintenance
Clearance
Compressor and
control component
access
24” Min. Maintenance Clearance
Figure 11: Outdoor Unit—Mounting and Service
Clearances (Elevation View)
See Figure 13
See Figure 12
LG
Base pan drain holes (Typical of 5)
Figure 12: Mounting Method #12
Anti-vibration
materials
Concrete
base
3Ó
3”3”
Minimum
3 thread ridges
Figure 13: Mounting Method #22
Spring washer
Frame
Nut
I-Beam
Anti-vibration
Anti-vibration
Anti-vibration
material
material
material
Concrete
base
3”
Min. 8”
4”
4”
Anchor Bolt
Anchor Bolt
Note:
1. Minimum airflow clearance specifications are based on a single unit installation without obstructions. Refer to "Clearance Requirements" on page 59 for specific airflow clearance requirements when obstructions are present.
2. All referenced materials are to be field-supplied.
3. Images are not to scale. All dimensions ±0.25 inches.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
SYSTEM ENGINEERING
|
57
PLACEMENT CONSIDERATIONS
The Multi V Mini outdoor unit is designed to operate properly in
a wide range of environmental conditions, but correct placement
of the outdoor unit is essential for maximizing unit performance.
Consider the following factors.
System Engineering
Wind Protection
If the outdoor unit is located
on a roof, position it with
the compressor end (no coil
surface) in the direction of the
prevailing wind as shown in
Figure 14. In cooler climates,
it may be beneficial to position
the unit in direct sunlight to assist with defrost operations.
Figure 14
If the outdoor unit is not located
on a roof, it would be best to
place it on the leeward side
of the building or in a location where the unit will not be
exposed to constant wind as
shown in Figure 15.
Figure 15
Prevailing Winds
on the fan blade or discharge grille.
Ambient Air Conditions
Prevailing
Winds
Wall or other wind break
Mounting Platform
The underlying structure or foundation must be designed to support
the weight of the unit. Unit weight is listed on the"Cut-sheet" on
page 82. Avoid placing the unit in a low lying area where water
may accumulate.
Tie-Downs and Wind Restraints
The strength of the Multi V Mini chassis is adequate to be used
with field-provided wind restraint tie-downs. The overall tie-down
configuration must be approved by a local professional engineer.
Always refer to local code when designing a wind restraint system.
|
SYSTEM ENGINEERING
In climates that experience snow buildup, place the unit on a raised
platform to ensure proper outdoor unit coil airflow. The raised support
platform must be high enough to allow the unit to remain above the
anticipated snow accumulation level (consider snow drifts). Design
the mounting base to prevent snow accumulation on the platform in
front or back of the unit case. If necessary, use inlet and discharge
duct or a snow hood to prevent snow or ice from accumulating on
the coil, fan blades, and fan guards. Best practice prevents snow
from accumulating on top of the unit as well. When the system is
commissioned, adjust the DIP switch for “snow throw” operation if a
snow hood is not used. In all cases, the outdoor unit supply and/or
discharge duct work or hood must be designed to have a combined air
pressure drop rating that does not exceed 0.16 in-wg.
Note: Snow throw mode does not prevent ice from forming
Figure 16
If placement exposes the unit to
constant wind activity, construct a
wind break in front of the unit as
shown in Figure 16. Follow the
Prevailing
placement guidelines set forth
in "Clearance Requirements" on Winds
page 59.
58
Dealing with Snow and Ice
Do not place the unit in a corrosive environment. Avoid exposing
the outdoor unit to steam, combustible gases, chimneys, steam relief
ports, other air conditioning units, kitchen vents, plumbing vents,
discharge from boiler stacks, and other sources of extreme temperature, gases, or substances that may degrade performance or cause
damage to the unit. When installing multiple outdoor units, avoid
placing the units where discharge air from the front of one outdoor unit
is blown into the back side of an adjacent unit.
Electromagnetic Waves
Do not expose the unit to electromagnetic waves from equipment
including, but not limited to generators, MRI equipment, or other
equipment that emits electromagnetic waves.
The control system may be affected by electromagnetic waves, which
may result in abnormal system operation. Also, the inverter components in these units may generate electromagnetic noise. Therefore,
ensure that there is enough distance between the outdoor unit and
any computer, stereo, and other electronic equipment. In weak electrical wave areas, ensure there is at least 9.8 feet between indoor unit
remote controllers and other electrical devices. Insert power cables
and other wires into separate conduits.
Handling Outdoor Unit Condensate
While operating in the Heating mode, the surface temperature of the
outdoor coil may drop below the dew-point of the surrounding air.
Moisture may condense on the coil fins and subsequently drain onto
the surface of the surrounding area from the bottom of the unit case.
If the designer chooses to control the flow of condensate from the
outdoor unit, install a field-provided drain pan under the unit and pipe
the condensate to a nearby drain. Mount the unit in the pan on rails
or isolation pads. If the unit will be operating near or below freezing
with a condensate drain pan installed, consider installing heat tape
in the bottom of the outdoor unit drain pan and along the condensate
drain line.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
CLEARANCE REQUIREMENTS
Outdoor Unit Minimum Clearance
Clearance Requirements—General
Legend:
Proper airflow through the outdoor unit coil is critical for proper unit operation. Figures 17 through 32
illustrate minimum space requirements for various installation scenarios for the ARUN036GS2 (3.0 ton),
ARUN047GS2 (4.0 ton), and ARUN053GS2 (4.4 ton). Use the hot isle/cold isle (back to back or face to
face) approach when placing multiple units in close proximity to each other. Outdoor unit fans draw air
from the back of the unit and discharges out the front.
LR = Rear wall height
LF = Front wall height
H = Unit height
Note:
Figure 19: Single Unit—high rear wall with
or without high side walls
Figure 17: Single Unit—high front wall
with building overhang and no side walls
n.
Mi
Figure 18: Single Unit—high rear wall
and low front wall with no side walls
"
20
Figure 20: Single Unit—high rear and
front walls with no side walls
Figure 21: Side by Side—high rear and
side walls
w
flo
Air
Figure 22: Single Unit—high rear and side
walls with building overhang
20"
"
. 20
Min
Max
20”
Min 40”
x
Ma
Figure 24: Single Unit—high rear
wall and low front wall with building
overhang and no side walls
Figure 23: Single Unit— high front and
rear walls with building overhang and
no side walls
Min
. 6"
flow Min
Air
. 6"
.
Min
H
L
Min. 40"
L ≤H
6"
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
w
flo
Air
Min
40”
Min
SYSTEM ENGINEERING
12”
|
59
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
Installation clearances must comply
with local building codes.
All figures not to scale.
Never place multiple units facing back
to front or front to back as shown below.
High and low system pressure problems
may occur.
CLEARANCE REQUIREMENTS
Outdoor Unit Minimum Clearance
Figure 25: Side by Side—high rear
and side walls with building overhang
Legend:
Figure 26: Side by Side—high rear and
front walls with building overhang
0”
LR = Rear wall height
LF = Front wall height
H = Unit height
2
Max
(1
Min 40”
Note:
Installation clearances must
comply with local building
codes.
Min
40”
flow
Air
Figure 27: Single Row Units—high rear
wall and low front wall with no side walls or
overhang
Min
4”
Min
Min
40”
12”
100
(3
or m-15/1
ore 6)
Figure 29: Side by Side—high rear wall
and low front wall with no side walls
Figure 28: Side by Side—high front
wall with building overhang and no
side or rear walls
s
r les
8) o
-5/
0(19
/4)
9-1 e
3
(
0 or
100 or m
50
1000 (39-1/4)
or more
w
flo
Air
100
(3
or m-15/1
ore 6)
Figure 30: Double Row Units—low rear and
front walls with no side walls or overhang
4)
-1/
(39 ore
0
0
10 or m
Figure 31: Side by Side—high front and
rear walls with no side walls
Figure 32: Side by Side—high rear
wall and low front wall with building
overhang and no side walls
)
5/8
(19500 r less
o
L ≤H
1000 (39-1/4)
or more
w
flo
Air
w
rflo
H
Ai
w
flo
Air
L
System Engineering
All figures not to scale.
less
1000 (39-1/4)
or more
500
) or
/8
9-5
100
(3or m 15/16)
ore
When installed in predominately cold climates:
)
7/8
(11300 r more
)
o
0(59
150 more
or
• Install a field-provided snow hood to keep out snow and rain.
• Ensure the outdoor unit is installed to avoid direct contact with snow. If the unit is installed in a snowy area, attach a fieldprovided snow hood over the coil inlet and/or outlet. If snow accumulated and freezes on the fan inlet and/or outlet, the
system may malfunction.
• Install the outdoor unit at least 19-3/4 inches higher than the average annual snowfall.
• The height of the mounting base must be more than 2 times the average annual snowfall.
• The width of the mounting base must not exceed the width of the unit. Snow may accumulate if the width of the frame is
wider than that of the unit.
• Make sure the fan inlet and the fan discharge of the outdoor unit are facing away from the seasonal wind.
60
|
SYSTEM ENGINEERING
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LATS MULTI V PIPE SYSTEM DESIGN TOOL
LATS Multi V
LATS Multi V is a Windows-based application that assists the
engineer in the design of the refrigeration distribution pipe system,
verifies the design complies with most pipe design limitations, applies selected capacity correction factors, and calculates the system
refrigerant charge.
Adjusting LATS Multi V Output for Altitude
When a system is installed at elevations significantly above sea
level, the designer must also consider the impact air density has on
the capacity of the indoor and outdoor units. An altitude correction
factor must be manually applied to the indoor and outdoor unit data
provided in the LATS report or tree diagram. Refer to the "Select the
Outdoor Unit" procedure on page 52 for more information.
Design Choices
LATS Multi V is flexible, offering the HVAC system engineer a choice
of two design methods:
1. Using the CAD mode, the refrigerant pipe design and layout
work is performed concurrently. Simply import a copy of a plan
view drawing (.dwg format) for each floor of the structure into
LATS Multi V. Select and place system components on the floor
plan drawing(s), and draft interconnecting pipe between system
components and riser pipe segments between floors. Once the
layout is complete, use the export feature to create a file (.dxf format) that can subsequently be imported into the building design
drawings.
In either case, LATS Multi V generates a report file (.xls format)
containing project design parameters, cooling and heating design
day system component performance, and capacity data. The report
calculates the system CR, calculates the system refrigerant charge,
and provides detailed bill of material information including a list of
Multi V outdoor units, indoor units, control devices, accessories,
and refrigerant pipe sizes segregated by building, by system, by
pipe size, and by pipe segments.
CAD mode
• Imports the building’s architectural CAD drawing (.dwg format)
• Imports building loads from an external file (.xls format)
• Lays out refrigerant piping directly onto an overlay of the building
drawing
• Assigns room loads to indoor units
• Automatically calculates pipe segment lengths based on drawing
layout
• Creates an export image file for import to the building drawing set
(.dxf format)
• Generates a system engineering report (.xls format)
Tree mode
• Imports building loads from an external file (.xls format)
• Selects system component using an easy drag and drop process
• Automatically analyzes and checks the design complies with
most piping design limitations
• Assigns room loads to indoor units
• Sizes refrigerant piping
• Generates a system engineering report (.xls format)
• Generates a picture of the piping tree diagram (.dxf format)
Figure 33: Screenshot of LATS Pipe System Design Tool Displaying
a Tree Mode Piping Diagram
Note: On multiple story buildings, all floor drawings must
have the same reference point relative to each other.
2. Using the TREE mode, the engineer can quickly create a one-line
schematic drawing of the Multi V system and create an export file
of the tree diagram in .dxf format. Integration of the engineered
pipe system layout into the building drawings is done at a later
date by the drafts person using standard drafting software tools.
Due to our policy of continuous product innovation, some specifications may change without notification.
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SYSTEM ENGINEERING
|
61
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
The proper design and installation of the refrigerant piping system
is a critical element of the Multi V system. Multi V Mini requires two
pipes between system components—a liquid line and a vapor line.
A properly designed refrigerant piping system ensures that refrigerant is delivered to the evaporator coil’s electronic expansion valve
(EEV) in a pure liquid state free of gas bubbles. A proper design
also ensures a sufficient refrigerant gas flow rate in the vapor line
that eliminates the possibility of refrigeration oil from collecting in the
vapor line. The piping system can be engineered manually using the
procedure outlined in the "Pipe Layout Procedure" on page 63;
however, the preferred method is to design the system using LG’s
LATS Multi V software.
PIPE DESIGN PARAMETERS
Liquid Line Pipe Design Parameters
Device Connection Limitations
• Minimum number of connected indoor units per system = 1.
• Minimum number of operating indoor units per system = 1.
• Maximum number of indoor units on a system is:
Figure 34: Multi V Mini Pipe Configuration Limitations
a. If the outdoor unit is mounted below the indoor unit(s)
Total piping length cannot exceed 984 feet
Longest piping length after first branch
Max 131 feet
tween
be
ference
evel dif
L
ARUN036 = 6
ARUN047 = 8
ARUN053 = 9
d IDU’
IDU’ an
9 feet
Max 4
Outdoor
Unit
Table 22: Multi V Mini Liquid-Line Pipe-Design Parameters
System Engineering
Pipe Length*
Total System
984 ELF
Longest distance
from ODU to IDU
492 feet (Actual)
574 feet (Equivalent)
Distance between
fittings and IDUs
≥ 20” ELF
Minimum distance between IDU to
any Y-Branch
≤ 131 ELF
Maximum distance between first
Y-Branch to farthest IDU
p
b. If the outdoor unit is mounted above the indoor unit(s)
Total piping length cannot exceed 984 feet
131 feet
Minimum distance from IDU to
Y-Branch
Elevation
Longest
Max 49 iping length
2
Max 57 feet (Actual)
4 feet (E
quivale
nt)
Outdoor Unit
Level difference between
ODU’ and IDU’
3 feet
If ODU is above IDU
164 feet
If ODU is below IDU
131 feet
Between any two IDUs
Max 164 feet
U’ and
een ID
betw
ference
evel dif
49 feet
L
IDU = Indoor Unit
ODU = Outdoor Unit
All elevation limitations are measured in actual feet
ELF = Equivalent length of pipe in feet
* Limitations refer to the liquid line length (not the sum of the liquid and vapor)
IDU’
9 feet
Max 4
g length
pipin
Longest
after first
branch
et
x 131 fe
Ma
Actual pipe length—Actual physical length of a pipe
th
ping leng
Longest pi et (Actual)
Table 23: Field-Supplied Refrigerant Fittings—Liquid Line Equivalent Pipe Length
nt)
2 fe
Max 49 feet (Equivale
4
Max 57
Equivalent Pipe Length*
Copper Tubing Size (OD)
3/8
1/2
5/8
3/4
7/8
1-1/8
Standard 90 Elbow
0.6
0.9
1.3
1.6
1.9
2.5
Long Radius 90O Elbow
0.4
0.6
0.8
1.0
1.3
1.7
Street 90 Elbow
1.0
1.6
2.1
2.6
3.1
4.2
Standard 45 Elbow
0.3
0.5
0.7
0.8
1.0
1.3
Street 45 Elbow
0.5
0.8
1.1
1.4
1.6
2.2
Y-Branch
1.6
1.6
1.6
1.6
1.6
1.6
Header
3.3
3.3
3.3
3.3
3.3
3.3
O
O
O
O
Ball Valve
The equivalent length of a FULL port ball valve is the physical length of the valve. Ignore the valves and treat as straight pipe. A full port ball has the same bore
diameter as the connected pipe.
* Equivalent pipe length in feet—The sum of the actual pipe length plus allocations for pressure drop through elbows and valves located in the liquid line.
Values are calculated based on formula and factors from www.sporlanonline.com.
LG supplied Y-Branch and Header fittings must be used. Field-built Y-Branch and Header fittings are not permitted.
62
|
SYSTEM ENGINEERING
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PIPE LAYOUT PROCEDURE
Creating a Balanced Piping System
Balancing dampers, ball valves, orifices, circuit setters, or other
flow control devices cannot be used to modify or balance the flow of
refrigerant in a VRF piping system. Therefore, variable refrigerant
flow systems must be designed to be “self balanced.” Pipe sizing
considerations include pipe length, pipe segment pressure drop
relative to other pipe segments in the system, type and quantity of
elbows, bends present, fitting installation orientation, and indoor
unit elevation differences. Balanced liquid refrigerant distribution is
solely dependent on the designer choosing the correct pipe size for
each segment.
Handling Field Piping Changes
Any field changes, such as rerouting, shortening or lengthening a
pipe segment, adding or eliminating elbows and/or fittings, re-sizing,
adding, or eliminating indoor units, changing the mounting height, or
moving the location of a device or fitting during installation should be
done with caution and always verified in LATS Multi V before piping
supplies are purchased or installed. Doing so may have a positive
effect on job profit, eliminate rework, and may avoid unexpected
necessary pipe changes before commissioning.
Layout Procedure
When this procedure is complete, the liquid line working drawing
should contain the information for each pipe segment and others
entities depicted in Figure 35 on page 65.
1. Choose the location of the indoor units and draw them on the
building drawing.
2. Choose the location of all Y-Branch and Header fittings and add
them to the drawings. Verify that all fittings are positioned per
the guideline limitations set forth in "Y-Branch Kits" on page 66
and "Header Kits" on page 67.
3. Plan the route for interconnecting piping. Draw a one-line depiction of the pipe route chosen on the building drawings.
4. Calculate the actual length of each pipe segment and note it on
the drawing next to each segment.
5. Using the data obtained while selecting the system components
from the "Equipment Selection Procedure" on page 51, list
the nominal cooling capacity next to each indoor unit on the
drawing.
7. At the branch or pipe segment upstream of the farthest Y-Branch
or Header fitting from the outdoor unit, note the downstream
connected nominal capacity of all indoor units served by the
pipe segment. Record these values next to the segment on the
drawing. Repeat the same procedure for each branch and main
pipe segment woking your way up the liquid line back toward the
outdoor unit for each leg of the piping system. When completed,
all segments will be noted with the nominal capacity of the
downstream indoor units served by each segment.
8. Use Table 24 to select the correct pipe size for both the liquid
and vapor lines. Note the chosen line sizes next to each segment.
9. Size Y-Branch and Header fittings. Refer to Cut-Sheets for "YBranch Kits" on page 4 and "Header Kits" on page 5 to determine
the part number of each LG Y-Branch and/or Header based on
the connected downstream nominal capacity served. Record
the part number next to each fitting.
10.Calculate the equivalent pipe length in feet of the branch and
main pipe segments. Y-Branch and Header equivalent lengths
should be included with the upstream segment only. Use
equivalent pipe length data provided with purchased fittings. If
unavailable, use the data provided in Table 24. Y-Branch and
Header equivalent lengths are found in the Cut-Sheets on pages
4 and 85. Equivalent length values will be used to calculate the
system refrigerant charge.
11.Verify the actual and/or equivalent pipe length complies with the
limitations listed in Table 23. If the limitations are exceeded, either reroute the pipe or change the location of selected Y-Branch
fittings, Header fittings, and/or indoor unit locations so the design
conforms with all limitations.
12.Verify the manually sized pipe design is acceptable using LATS
Multi V. Using the LATS tree mode modeling option, enter the
actual pipe length of each pipe segment. Account for the additional pressure drop created by elbows by double-clicking on
the segment length text in LATS Multi V. In the dialog box, enter
the elbow count.
13.After entering all necessary information into LATS, click on the
"Auto Pipe" button on the left followed by the "System Check"
button located under the "Auto Pipe" button. If no dialog boxes
pop up indicating an error and none of the entities on the tree
mode diagram have a red box around or along them, the pipe
design is acceptable and the layout work is complete. If errors
were indicated, modify the pipe design as needed. For assistance, contact the applied product representative in your area.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
SYSTEM ENGINEERING
|
63
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
It is imperative the designer avoids creating excessive pressure
drop. In the liquid line, the pipe system must be designed in a
manner that avoids the creation of unwanted vapor. When liquid refrigerant is subjected to excessive pressure drop, the refrigerant will
change state and “flash” to vapor. If vapor bubbles form in a stream
of liquid refrigerant before reaching the electronic expansion valve
(EEV), loss of system temperature control and EEV valve damage
may occur.
6. Starting at the runout segment servicing the indoor unit located
farthest from the outdoor unit, note the connected nominal
capacity of the indoor unit served by the pipe segment. Record
these values next to each segment on the drawing.
PIPE LAYOUT PROCEDURE
Table 24: Pipe Segment Sizing— All pipe dimensions are inches OD
Model
Branch and Run-Out Segments2,3
Main Pipe Segment1
< 295 feet equivalent
≥ 295 feet equivalent
≤ 19.1 MBh
downstream capacity
> 19.1 MBh < 54.6 MBh
downstream capacity
≥ 54.6 MBh ≤ 68.9 MBh
downstream capacity
Liquid
Vapor
Liquid
Vapor
Liquid
Vapor
Liquid
Vapor
Liquid
Vapor
ARUN036GS2
3/8
5/8
3/8
3/4
1/4
1/2
3/8
5/8
–
–
ARUN047GS2
3/8
5/8
3/8
3/4
1/4
1/2
3/8
5/8
–
–
ARUN053GS2
3/8
3/4
3/8
3/4
3/8
3/4
3/8
3/4
3/8
3/4
System Engineering
1. Select the equivalent length of the longest pipe run between the outdoor unit and the furthest indoor unit.
2. Capacity (MBh) = The sum of the nominal capacity of all connected indoor units served by the pipe segment.
3. If the sum of the nominal cooling capacity of all connected indoor units served by a branch or run-out segment is greater than the capacity of the outdoor unit, size the pipe segment based on the
outdoor unit nominal capacity.
64
|
SYSTEM ENGINEERING
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PIPE LAYOUT PROCEDURE
Figure 35: Typical System Drawing Showing a Liquid Line Layout
Main—The pipe segment between the outdoor unit and the first Y-Branch or Header kit
Branch—A segment of pipe between two
Y-Branches or a Y-Branch and a Header kit
Run-out—The segment of pipe connecting
an indoor unit to a Y-Branch or Header kit
ARNU073TEC2
Recessed Ceiling
4-Way Cassette
Cooling: 7.5 MBh
Heating: 8.5 MBh
Future IDU (to be installed later)
—Full Port Ball Valve
(Install on both liquid and vapor lines)
Run-out R1
Linear distance: 35 feet
Equivalent length: <<XX feet>>
Segment cooling cap: 7.5 MBh
Cap here
Branch segment B2.2
Linear distance: 24 feet
Equivalent length: <<XX feet>>
Segment cooling cap: 30.0 MBh
ARNU073TEC2
Recessed Ceiling
4-Way Cassette
Cooling: 7.5 MBh
Heating: 8.5 MBh
Branch segment B2.4
Linear distance: 24 feet
Equivalent length: <<XX feet>>
Segment cooling cap: 15.0 MBh
Run-out R2
Linear distance: 20 feet
Equivalent length: <<XX feet>>
Segment cooling cap: 7.5 MBh
Run-out R6
Linear distance: 18 feet
Equivalent length: <<XX feet>>
Segment cooling cap: 7.5 MBh
Main pipe segment M1
Linear distance: 18 feet
Equivalent length: <<XX feet>>
Segment cooling cap: 60.0 MBh
Run-out R10
Linear Distance: 8.5 feet
Equivalent Length: 9.7 feet
Segment Cooling Cap: 7.5 MBh
Run-out R6
Linear distance: 18 feet
Equivalent length: <<XX feet>>
Segment cooling cap: 7.5 MBh
Run-out R8
Linear distance: 18 feet
Equivalent length: <<XX feet>>
Segment cooling cap: 7.5 MBh
ARNU073SEL2
High Wall
Surface Mount
Cooling: 7.5 MBh
Heating: 8.5 MBh
Multi V Mini
ARUN047GS2
Cooling: 47.8 MBh
Heating: 54.6 MBh
Combination Ratio: 125%
Run-out R3
Linear distance: 35 feet
Equivalent length: <<XX feet>>
Segment cooling cap: 7.5 MBh
ARNU073B1G2
Recessed Ceiling
Low Static Discharge
Cooling: 7.5 MBh
Heating: 8.5 MBh
Run-out R9
Linear Distance: 14 feet
Equivalent Length: 14.4 feet
Segment Cooling Cap: 7.5 MBh
ARNU073TEC2
Recessed Ceiling
4-Way Cassette
Cooling: 7.5 MBh
Heating: 8.5 MBh
ARNU073CEA2
Cased - Floor Mount
4-Way Cassette
Cooling: 7.5 MBh
Heating: 8.5 MBh
ARNU073CEA2
Cased - Floor Mount
4-Way Cassette
Cooling: 7.5 MBh
Heating: 8.5 MBh
Table 25: Pipe Segment Sizes
Segment Tag
M1
B1.1
B2.1
B2.2
B2.3
B2.4
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
Liquid Line Dia. OD (in)
3/8
3/8
3/8
3/8
3/8
1/4
1/4
1/4
1/4
1/4
1/4
1/4
1/4
1/4
1/4
1/4
Vapor Line Dia. OD (in)
3/4
5/8
5/8
5/8
5/8
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
All sizes are internal diameter in inches.
M = Main pipe segment, B = Branch pipe segment, R = Run-out pipe segment
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
SYSTEM ENGINEERING
|
65
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
Branch segment B2.3
Linear distance: 24 feet
Equivalent length: <<XX feet>>
Segment cooling cap: 22.5 MBh
Branch segment B2.1
Linear distance: 24 feet
Equivalent length: <<XX feet>>
Segment cooling cap: 37.5 MBh
Branch segment B1.1
Linear distance: 18 feet
Equivalent length: <<XX feet>>
Segment cooling cap: 22.5 MBh
ARNU073TEC2
Recessed Ceiling
4-Way Cassette
Cooling: 7.5 MBh
Heating: 8.5 MBh
PIPING DESIGN GUIDE
LG Engineered Y-Branch and Header Kits
General:
The Y-Branch and Header kits are used to join one pipe segment to two or more segments. See Cut-Sheets: "Y-Branch Kits" on page 80
and "Header Kits" on page 81 for sizes and dimensions.
LG Y-Branch kits consists of:
• Two Y-Branches (one liquid line, one vapor line) • Two Headers (one liquid line, one vapor line)
• Reducer fittings as applicable
• Reducer fittings as applicable
• Molded clam-shell type insulation covers
• Molded clam-shell type insulation covers
Y-Branch Kits
Note:
Only LG supplied Y-Branch The pipe coming from the outdoor unit should
and Header fittings can be used
always connect to the single port end of the
to join one pipe segment to two or Y-Branch as shown in Figure 37.
more segments.
System Engineering
LG Y-Branch and Header kits
are precision engineered devices
designed to evenly divide the flow
of refrigerant. Third-party or field
fabricated Tee’s, Y-fittings, Headers, or other branch fittings are not
qualified for use with LG Multi V
systems. The only field-provided
fittings allowed in a Multi V piping
system are 45° and 90° elbows
and full-port ball valves.
There is no limitation on the
number of Y-Branches that can
be installed, but there is a limitation on the number of indoor units
connected to a single outdoor unit.
See Table 1a on page 14.
Avoid installing Y-Branches backwards as shown in Figure 36. Refrigerant flow cannot make U-turns
through Y-Branches.
Figure 36: Connecting Y-Branch Kits
xt
ne
To
nit
ru
oo
ind
To
LG Header kits consists of:
h
nc
bra
Y-Branches may be installed in a horizontal
or vertical configuration. When installed
in the horizontal configuration, position the
fitting so the take-off leg shares the same
horizontal plane as the straight-thru leg ±10°
as shown in Figure 38c. When installed in
a vertical configuration, position the fitting
so the straight-thru leg is ±3° of plum. See
Figure 38 (a and b).
The first Y-Branch kit must be located at
least 3 feet from the outdoor unit. Provide a
minimum of 20 inches between a branch fitting and any other fitting or indoor unit piped
in series to avoid generating refrigerant flow
noise into the system.
5. Install field-provided insulation on the 3
pipes first.
6. Peel the adhesive glue protector slip and
install the clam-shell jacket over the fitting.
Figure 37: Y-Branch Connections
To ODU
To IDU
Figure 38: Y-Branch insulation alignment
specification
b.Vertical Down
a. Vertical Up
Configuration
Configuration
-3°
+3°
-3°
|
SYSTEM ENGINEERING
+3°
It is recommended that when a Y-Branch is
located in a pipe chase or other concealed
space, access doors should be provided for
access and inspection.
See "Refrigerant Pipe System Insulation"
on page 76 for pipe system insulation
information.
Y-Branch Insulation
Each Y-Branch kit comes with two clam-shell
type peel and stick insulation jackets molded to
fit the Y-Branch fittings as shown in Figure 39—
one for the liquid line, one for the vapor line.
1. Check the fit of the Y-Branch clam-shell insulation jacket after the Y-Branch is installed.
2. Verify there will be no exposed pipe between
the end of the Y-Branch, jacket, and adjacent
pipe insulation.
3. Mark the pipe where the insulation jacket ends.
4. Remove the jacket.
c.Horizontal Configuration End View
Straight Through Leg
Branch Leg
10°
Horizontal Plane
Y-Branch Inlet
-10°
Figure 39: Y-Branch insulation and pipe
detail
LG-Supplied Insulation Jacket
LG-Supplied Y-Branch Fitting
Field-Supplied Insulation
Field-Supplied Copper Pipe
66
To IDU
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Field-Supplied Insulation
PIPING DESIGN GUIDE
LG Engineered Y-Branch and Header Kits
Header Kits
Note: Y-Branches can be
installed upstream between the
Header and the outdoor unit,
but a Y-Branch cannot be installed between a Header and
an indoor unit.
All indoor units must be mounted at
an elevation below the Header fitting.
All indoor units connected to a single
Header fitting should be located with an
elevation difference between connected
indoor units that does not exceed 49
feet. If indoor units are located at an
elevation the same as or above the
Header fitting, do not use a Header.
Instead install a Y-Branch fitting between
the outdoor unit and the Header fitting
and connect the elevated indoor unit to
the Y-Branch.
Figure 40: Header Kit
Det
Largest IDU
Us
(Fig
D
rI
alle
Sm
ail A
41)
s
DU
I
ect
nn
Co
ure
Figure 41: Header Kit—Must be installed level with
no rotation
Header
Inlet Inlet
Header
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
To avoid the potential of
uneven refrigerant distribution through a Header fitting,
minimize the difference in
equivalent pipe length between
the Header fitting port and each
connected indoor unit.
Header kits are intended for use where
multiple indoor units are in close proximity to each other or where it would be
more economical to “home-run” the runout pipe segments back to a centralized
location. If connecting multiple indoor
units that are far apart, Y-Branches may
be more economical. See Tables 38 and
39 on page 4 for Header kit specifications and capacity.
Install Headers in a horizontal and level
position with the distribution ports of
the fitting in the same horizontal plane
as the straight-thru branch as shown in
Figure 41.
When connecting indoor units to a
Header, it is best practice to connect the
unit with the largest nominal capacity
to the port closest to the outdoor unit.
Then install the next largest indoor unit
to the next port working down to the
smallest indoor unit. Avoid skipping
ports. See Figure 40.
Detail
A—Figure
40—Header
FittingEnd
Installation
Header
Fitting
Installation
View
EndDetail
View A (Figure 15)
Header Insulation
Each Header kit comes with two
clam-shell type peel and stick insulation jackets molded to fit each Header
fitting—one for the liquid line and one
for the vapor line as shown in Figure
42. See "Refrigerant Pipe System Insulation" on page 76 for pipe system
insulation information.
Figure 42: Header Insulation and Pipe Detail
Field supplied copper pipe
Field supplied insulation
Field supplied copper pipe LG supplied header LG supplied insulation jacket
Due to our policy of continuous product innovation, some specifications may change without notification.
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SYSTEM ENGINEERING
|
67
PIPING DESIGN GUIDE
Engineering for Future Indoor Units
Commissioning in Stages
Begin with the end in mind to avoid system downtime, unnecessary costs, and the replacement of installed pipe segments when
adding subsequent indoor units and/or changing the location or
size of existing units after the system is initially designed and commissioned. Complete the following at the same time the initially
installed portion of the system is complete:
System Engineering
• Placement decisions for all future indoor units
• Piping plan for future piping
• Sizing of future pipe segments
In these applications, the future pipe design must be verified using
LG’s LATS Multi V software to confirm the pipe design complies
with LG’s design limitations after all future indoor unit additions
and planned pipe system changes are made. Install isolation ball
valves on the liquid and vapor lines near the Y-Branch or Header
on each leg where the future run-out piping and unit will be connected. If possible, avoid installing the pipe segment between the
ball valve and the location of the future indoor unit during the initial
phase of the project. Cap the future pipe segment 3 to 6 inches
from the ball valve discharge and open the valve before system
evacuation and charging. Close the valve after charging the
system. Doing so ensures that refrigeration oil will return to the
compressor sump and not be trapped in future-use pipe segments.
For example, refer to Figure 35 and review the drawing of the runout segment tagged R1. It is very important to verify the system’s
CR is at least 50% initially and that it does not exceed 130% after
all future indoor unit changes and/or additions are completed. See
"How to Determine the System Combination Ratio (CR)" on page
55 for more information. Verify the anticipated RUR is within the
limitations listed on page 55.
Field-Provided Isolation Valves
LG neither provides nor requires isolation ball valves on indoor
units for proper system operation. If isolation is desired, full-port
isolation ball valves with Schrader ports (positioned between valve
and indoor unit) rated for use with R410A refrigerant should be
used on the liquid and vapor lines. Position the valves so they are
easily accessible for service. If necessary, install drywall access
doors or removable ceiling panels. Position valves with 3 to 6
inches of pipe on either side. Position valves with adequate clearance for applying field insulation. If valves are not installed and
a single indoor unit needs to be removed or repaired, the entire
system must be shut down and evacuated. If isolation ball valves
are installed, the unaffected indoor units may be operated after
the control system is rebooted if the system CR (excluding the
disconnected unit) remains between 50% and 130%. See "How to
Determine the System Combination Ratio (CR)" on page 55.
Refrigerant Specialties
In-line refrigeration components, such as solenoid valves, filterdryers, sight glasses, tee fittings, and after-market refrigerant pipe
system accessories are prohibited and cannot be used with the
Multi V Mini. Sight-glasses, solenoid valves, and tee fittings may
cause gas bubbles to form in the liquid line. Over time, dryers
may deteriorate and introduce debris into the system.
Oil Traps
Oil traps are not permitted. The Multi V system is engineered with
redundant systems that ensure oil is properly returned to the compressor. The designer and installer should verify that the refrigerant piping system is free of oil traps. For instructions on routing
a pipe segment around an obstacle, see "Handling Obstacles" on
page 74.
Using Elbows
Third-party elbows are allowed as long as they are designed for
use with R410A refrigerant. The designer and installer should
use a minimum number of fittings since they must consider the
pressure drop each creates measured in equivalent length of pipe
in feet. When using the LATS Multi V software or when performing
manual calculations, the additional equivalent pipe length of all fittings must be accounted for in the respective segments. See Table
23 on page 62.
68
|
SYSTEM ENGINEERING
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
PIPING DESIGN GUIDE
Selecting Copper Tubing
Copper is the only approved refrigerant pipe material for use with
LG Multi V commercial air conditioning products. Hard-drawn or annealed copper tubing is acceptable, and the designer chooses which
one to use.
• Drawn temper ACR copper tubing is available in sizes 3/8 thru
1-1/8 inches (ASTM B 280, clean, dry, and capped).
• Annealed temper ACR copper tubing is available in sizes 1/4 thru
1-1/8 inches (ASTM B 280, clean, dry, and capped).
Choose the tube wall thickness to meet local codes, UL standards,
and it must be approved for an operating pressure of 551 psig. If
local codes do not specify wall thickness, LG suggests using tubing
sizes as specified in Table 26. When bending soft copper tubing, use the largest radius bends wherever possible to reduce the
equivalent length of installed pipe. Be sure no traps or sags are
present when rolling out and installing soft copper tubing.
Type
Seamless Phosphorous Deoxidized
Class
UNS C12200 DHP
Straight Lengths
H58 Temper
Coils
O60 Temper
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
Table 26: ACR Copper Tubing Material
Table 27: ACR Copper Tubing Dimensions/Physical Characteristics
Cubic ft. per
Linear ft.
Weight (lb/ft)
Nominal Wall
Thickness (in)
Annealed Temper
Cubic ft. per
Linear ft.
Weight (lb/ft)
Nominal Wall
Thickness (in)
Drawn Temper
Nominal Pipe
OD (in)
Actual
OD (in)
1/4
0.250
–
–
–
0.030
0.081
.00020
3/8
0.375
0.030
0.126
.00054
0.032
0.134
.00053
1/2
0.500
0.035
0.198
.00101
0.032
0.182
.00103
5/8
0.625
0.040
0.285
.00162
0.035
0.251
.00168
3/4
0.750
0.042
0.362
.00242
0.042
0.362
.00242
7/8
0.875
0.045
0.455
.00336
0.045
0.455
.00336
1-1/8
1.125
0.050
0.655
.00573
0.050
0.655
.00573
All dimensions provided are in accordance with ASTM B280.
Design pressure = 551 psig.
Annealed (soft) and drawn temper tubing is suitable for use with flared and brazed fittings.
Annealed tubing is available in 50 ft. coils.
The type of tubing selected for use in a particular application is determined by the internal fluid pressure
of the R410A refrigerant at the highest operating condition.
Source: The Copper Tube Handbook, 2010, Copper Development Association Inc., 260 Madison
Avenue, New York, NY 10016.
Due to our policy of continuous product innovation, some specifications may change without notification.
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SYSTEM ENGINEERING
|
69
PIPING DESIGN GUIDE
Copper Expansion and Contraction
Under normal operating conditions, the vapor pipe temperature of
a Multi V Mini system can vary as much as 280°F. With this large
variance in pipe temperature combined with a potential straight run
pipe of up to 492 feet and a segment length between fittings of up to
131 feet, the designer must consider pipe expansion and contraction
to avoid potential pipe and fitting fatigue failures.
System Engineering
Refrigerant pipe along with the insulation jacket form a cohesive
unit that expands and contracts together. During system operation,
thermal heat transfer occurs between the pipe and the surrounding
insulation.
If the pipe is mounted in free air space, no natural restriction to
movement is present if mounting clamps are properly spaced and
installed. When the refrigerant pipe is mounted underground in a
utility duct stacked among other pipes, natural restriction to linear
movement is present. In extreme cases, the restrictive force of
surface friction between insulating jackets could become so great
that natural expansion ceases and the pipe is “fixed” in place. In this
situation, opposing force caused by the change in refrigerant fluid/
vapor temperature can lead to pipe/fitting stress failure.
The refrigerant pipe support system must be engineered to allow free
expansion to occur. When a segment of pipe is mounted between
two fixed points, provisions must be provided to allow pipe expansion to naturally occur. The most common method is the inclusion
of expansion Loop or U-bends. See Figure 43 on page 72. Each
segment of pipe has a natural fixed point where no movement occurs. This fixed point is located at the center point of the segment
assuming the entire pipe is insulated in a similar fashion. The natural fixed point of the pipe segment is typically where the expansion
Loop or U-bend should be placed. Linear pipe expansion can be
calculated using the following formula:
LE = C x L x (Tr – Ta) x 12
Where
LE =
Anticipated linear tubing expansion (in.)
C
=
Constant (For copper = 9.2 x 10-6 in./in.°F)
L
=
Length of pipe (ft.)
Tr
=
Refrigerant pipe temperature (°F)
=
Ambient air temperature (°F)
12
=
Inches to feet conversion (12 in/ft.)
Ta
70
|
SYSTEM ENGINEERING
Refer to Table 28 and 29 for anticipated expansion distances for
copper pipe.
1. From Table 28, find the row corresponding with the actual length
of the straight pipe segment.
2. Estimate the minimum and maximum temperature of the pipe.
3. In the column showing the minimum pipe temperature, look up
the anticipated expansion distance. Do the same for the maximum pipe temperature.
4. Calculate the difference in the two expansion distance values.
The resultant will be the anticipated change in pipe length.
For example,
A Multi V Mini heat pump system is installed and the design shows
that there is a 260 feet straight segment of tubing between a YBranch and an indoor unit. In Heating mode, this pipe transports hot
gas vapor to the indoor units at 120°F. In Cooling mode, the same
tube is a suction line returning refrigerant vapor to the outdoor unit at
40°F. Look up the copper tubing expansion at each temperature and
calculate the difference.
Vapor Line
Transporting Hot Vapor: 260 ft. pipe at 120°F = 3.64 in.
Transporting Suction Vapor: 260 ft. pipe at 40°F = 1.04 in.
Anticipated change in length: 3.64 in. – 1.04 in. = 2.60 in.
Liquid Line
The liquid pipe temperature will not vary significantly. Only the direction of flow will change.
Creating an Expansion Joint
When creating an expansion joint, the joint height should be a
minimum of two times the joint width. Although different types of expansion arrangements are available, the data for correctly sizing an
expansion loop is provided. Use soft copper with long radius bends
on longer runs or long radius elbows for shorter pipe segments. Use
the anticipated linear expansion (LE) distance calculated, and look
up the Loop or U-bend minimum design dimensions. If you choose
other types of expansion joints, design per ASTM B-88 standards.
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PIPING DESIGN GUIDE
Table 28: Linear Thermal Expansion of Copper Tubing in Inches
Fluid Temperature OF
35°
40°
45°
50°
55°
60°
65°
70°
75°
80°
85°
90°
95°
100°
105°
110°
115°
120°
125°
130°
10
0.04
0.04
0.05
0.06
0.06
0.07
0.08
0.08
0.09
0.09
0.10
0.10
0.11
0.11
0.11
0.12
0.13
0.14
0.15
0.15
20
0.08
0.08
0.10
0.12
0.13
0.14
0.15
0.16
0.17
0.18
0.19
0.20
0.21
0.22
0.22
0.23
0.26
0.28
0.29
0.30
30
0.12
0.12
0.15
0.18
0.20
0.21
0.23
0.24
0.26
0.27
0.29
0.30
0.32
0.33
0.32
0.35
0.39
0.42
0.44
0.45
40
0.16
0.16
0.20
0.24
0.26
0.28
0.30
0.32
0.34
0.36
0.38
0.40
0.42
0.44
0.43
0.46
0.52
0.56
0.58
0.60
50
0.20
0.20
0.25
0.30
0.33
0.35
0.38
0.40
0.43
0.45
0.48
0.50
0.53
0.55
0.54
0.58
0.65
0.70
0.73
0.75
60
0.24
0.24
0.30
0.36
0.39
0.42
0.45
0.48
0.51
0.54
0.57
0.60
0.63
0.66
0.65
0.69
0.78
0.84
0.87
0.90
70
0.28
0.28
0.35
0.42
0.46
0.49
0.53
0.56
0.60
0.63
0.67
0.70
0.74
0.77
0.76
0.81
0.91
0.98
1.02
1.05
80
0.32
0.32
0.40
0.48
0.52
0.56
0.60
0.64
0.68
0.72
0.76
0.80
0.84
0.88
0.86
0.92
1.04
1.12
1.16
1.20
90
0.36
0.36
0.45
0.54
0.59
0.63
0.68
0.72
0.77
0.81
0.86
0.90
0.95
0.99
0.97
1.04
1.17
1.26
1.31
1.35
100
0.40
0.40
0.50
0.60
0.65
0.70
0.75
0.80
0.85
0.90
0.95
1.00
1.05
1.10
1.08
1.15
1.30
1.40
1.45
1.50
120
0.48
0.48
0.60
0.72
0.78
0.84
0.90
0.96
1.02
1.08
1.14
1.20
1.26
1.32
1.30
1.38
1.56
1.68
1.74
1.80
140
0.56
0.56
0.70
0.84
0.91
0.98
1.05
1.12
1.19
1.26
1.33
1.40
1.47
1.54
1.51
1.61
1.82
1.96
2.03
2.10
160
0.64
0.64
0.80
0.96
1.04
1.12
1.20
1.28
1.36
1.44
1.52
1.60
1.68
1.76
1.73
1.84
2.08
2.24
2.32
2.40
180
0.72
0.72
0.90
1.08
1.17
1.26
1.35
1.44
1.53
1.62
1.71
1.80
1.89
1.98
1.94
2.07
2.34
2.52
2.61
2.70
200
0.80
0.80
1.00
1.20
1.30
1.40
1.50
1.60
1.70
1.80
1.90
2.00
2.10
2.20
2.16
2.30
2.60
2.80
2.90
3.00
220
0.88
0.88
1.10
1.32
1.43
1.54
1.65
1.76
1.87
1.98
2.09
2.20
2.31
2.42
2.38
2.53
2.86
3.08
3.19
3.30
240
0.96
0.96
1.20
1.44
1.56
1.68
1.80
1.92
2.04
2.16
2.28
2.40
2.52
2.64
2.59
2.76
3.12
3.36
3.48
3.60
260
1.04
1.04
1.30
1.56
1.69
1.82
1.95
2.08
2.21
2.34
2.47
2.60
2.73
2.86
2.81
2.99
3.38
3.64
3.77
3.90
280
1.12
1.12
1.40
1.68
1.82
1.96
2.10
2.24
2.38
2.52
2.66
2.80
2.94
3.08
3.02
3.22
3.64
3.92
4.06
4.20
300
1.20
1.20
1.50
1.80
1.95
2.10
2.25
2.40
2.55
2.70
2.85
3.00
3.15
3.30
3.24
3.45
3.90
4.20
4.35
4.50
320
1.28
1.28
1.60
1.92
2.08
2.24
2.40
2.56
2.72
2.88
3.04
3.20
3.36
3.52
3.46
3.68
4.16
4.48
4.64
4.80
340
1.36
1.36
1.70
2.04
2.21
2.38
2.55
2.72
2.89
3.06
3.23
3.40
3.57
3.74
3.67
3.91
4.42
4.76
4.93
5.10
360
1.44
1.44
1.80
2.16
2.34
2.52
2.70
2.88
3.06
3.24
3.42
3.60
3.78
3.96
3.89
4.14
4.68
5.04
5.22
5.40
380
1.52
1.52
1.90
2.28
2.47
2.66
2.85
3.04
3.23
3.42
3.61
3.80
3.99
4.18
4.10
4.37
4.94
5.32
5.51
5.70
400
1.60
1.60
2.00
2.40
2.60
2.80
3.00
3.20
3.40
3.60
3.80
4.00
4.20
4.40
4.32
4.60
5.20
5.60
5.80
6.00
420
1.68
1.68
2.10
2.52
2.73
2.94
3.15
3.36
3.57
3.78
3.99
4.20
4.41
4.62
4.54
4.83
5.46
5.88
6.09
6.30
440
1.76
1.76
2.20
2.64
2.86
3.08
3.30
3.52
3.74
3.96
4.18
4.40
4.62
4.84
4.75
5.06
5.72
6.16
6.38
6.60
460
1.84
1.84
2.30
2.76
2.99
3.22
3.45
3.68
3.91
4.14
4.37
4.60
4.83
5.06
4.97
5.29
5.98
6.44
6.67
6.90
480
1.92
1.92
2.40
2.88
3.12
3.36
3.60
3.84
4.08
4.32
4.56
4.80
5.04
5.28
5.18
5.52
6.24
6.72
6.96
7.20
500
2.00
2.00
2.50
3.00
3.25
3.50
3.75
4.00
4.25
4.50
4.75
5.00
5.25
5.50
5.40
5.75
6.50
7.00
7.25
7.50
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
Pipe
Length
Pipe length baseline temperature = 0°F
Pipe length in feet
The Engineers Toolbox (www.engineeringtoolbox.com)—Expansion of Carbon, Copper and Stainless Steel Pipe
Due to our policy of continuous product innovation, some specifications may change without notification.
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SYSTEM ENGINEERING
|
71
PIPING DESIGN GUIDE
Figure 43: Coiled Expansion Loops and Offsets
L
L
R
L
R
a. Large Tubing U-Bend (>3/4 in.)
b. Loop
c. Small Tubing U-Bend (<3/4 in.)
Table 29: Radii of Coiled Expansion Loops and Developed Lengths of Expansion Offsets
Anticipated Linear
Expansion (LE) (in)
System Engineering
1/2
1
1-1/2
2
2-1/2
3
3-1/2
4
Nominal Tube Size (OD) inches
1/4
3/8
1/2
3/4
1
1-1/4
1-1/2
1
R
6
7
8
9
11
12
13
L
2
38
44
50
59
67
74
80
R1
9
10
11
13
15
17
18
L
2
54
63
70
83
94
104
113
1
R
11
12
14
16
18
20
22
L
2
101
115
127
138
66
77
86
1
R
12
14
16
19
21
23
25
L
2
77
89
99
117
133
147
160
R1
14
16
18
21
24
26
29
L
2
86
99
111
131
149
165
179
R1
15
17
19
23
26
29
31
L
94
109
122
143
163
180
196
2
R
16
19
21
25
28
31
34
L2
102
117
131
155
176
195
212
1
R1
17
20
22
26
30
33
36
L
109
126
140
166
188
208
226
2
R = Centerline Minimum Radius (inches)
L = Centerline Length of Pipe
The Engineers Toolbox (www.engineeringtoolbox.com)—Expansion of Carbon, Copper and Stainless Steel Pipe
72
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SYSTEM ENGINEERING
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PIPING DESIGN GUIDE
Refrigerant Pipe Connections
Pipe Supports
Note: When routing field-provided tubing inside the out-
door unit case, take care to avoid vibration damage to the
tubing. Mount the tubing so it does not make contact with
the compressor, unit casing, terminal cover, or mounting
bolts. Allow room for field installation.
roperly insulate field-provided tubing inside the confines
P
of the unit casing.
Refer to Figure 44 for unit pipe connection options and
Table 27 for outdoor unit connection types.
• Straight segments up to 3/4 inch OD should be supported at
least every 5 feet or per local codes if more stringent.
• Straight segments of 1 inch OD and larger copper pipe should
be supported every 6 feet or per local codes if more stringent.
• A properly installed pipe system will have sufficient supports
to keep pipes from sagging during the life of the system. As
necessary, place supports closer for segments where potential
sagging could occur.
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
Figure 44: Outdoor Unit—Refrigerant Pipe Connections Options
A properly installed pipe system should be adequately supported to
avoid pipe sagging. Sagging pipes become oil traps that could lead
to equipment malfunction. Field-provided pipe supports should be
designed to meet local codes. If allowed by code, use fiber straps
or split-ring hangers suspended from the ceiling on all-thread rods.
Supports should never touch the pipe wall. Insulate the pipe first.
Place a second layer of insulation over the pipe insulation jacket to
prevent chafing and compression of the primary insulation within
the confines of the support pipe clamp. Pipe and insulation should
be allowed to move linearly as pipe temperature changes.
Wherever the pipe changes direction, place a hanger within 12
inches on one side and within 12 to 19 inches of the bend on the
other side as shown in Figure 45. Support piping at indoor units
as shown in Figure 46. Support Y-Branch and Header fittings as
shown in Figure 47 and Figure 48.
Figure 45: Typical Pipe Support—Change in Pipe Direction
Table 30: Outdoor Unit Refrigerant Pipe Connections
Model
Liquid Conn
(inches)
Type
Vapor Conn
(inches)
Type
ARUN036GS2
3/8
Braze
5/8
Braze
ARUN047GS2
3/8
Braze
5/8
Braze
ARUN053GS2
3/8
Braze
3/4
Braze
Max. 12”
Figure 46: Pipe Support at Indoor Unit
B
Max. 12"
A
~ 12” – 19”
~ 12” – 19”A+B
~12"–19"
Figure 47: Pipe Support at
Y-Branch Fitting A+B ~ 12” – 19”
Max. 12" Max. 12"
~ 12"–19"
Figure 48: Pipe Support at
Header
Max. 12"
A+B ~ 12” – 19”
Max. 12” Max. 12”
Max. 12"
Max. 12”
Max. 12”
Max. 12”
Max. 12"
Max. 12” Max. 12”
~ 12” – 19”
Max. 12”
A+B ~ 12” – 19”
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Max. 12” Max. 12”
SYSTEM ENGINEERING
|
73
PIPING DESIGN GUIDE
Routing / Protecting Refrigerant Pipe
Note:
Power cables and low voltage control wiring should be separated a minimum of 2 inches to avoid Electro-Magnetic Field
(EMF) effects on communications. See Figure 49 and Figure 50.
When placing multiple outdoor units in the same vicinity, a multiple tier pipe/cable tray similar to the one shown in Figure 50 may be a good
option. Position refrigerant pipe, power cables, and communication cables so they do not impede walking access to the unit or the removal of
service access panels. Best practice dictates that insulated piping and cables should be properly supported and protected from natural elements to prevent deterioration. Place pipes, cables, and wires in a cable/pipe tray equipped with a removable weather tight cover. Consider
"Copper Expansion and Contraction" on page 70.
The minimum size wall sleeve or utility conduit should be sized using the data in Table 28, local code, and NEC regulations. Size using the
most conservative data.
System Engineering
Figure 49: Single outdoor unit—suggested arrangement of
refrigerant pipe and cable
A
Power Cable
B
Liquid Line
C
Vapor Line
D
D
Control
Wire(s)
Control Wire(s)
A
Power
Cable
A Power Cable
B
Liquid Line
LiquidBLine
C
Vapor Line
D
Control Wire(s)
Minimum Spacing Required
Min.2"
(See Table 29)
Min.2"
A
B
E
C
C
A
Power Cable
E PowerCable
Cable
E Power
Control
Wiring
FF Control Wiring
F Control Wiring
Piping
Refrigerant
Piping
G Refrigerant
G
G Refrigerant Piping
Vapor Line
C
B
Figure 50: Multiple outdoor unit installation—suggested arrangement
of refrigerant pipe and cables using a multi-tier tray system
E
E
F
F
G
G
D
D
Min 2”
Minimum Spacing Required
(See Table 29)
Min.8"
Min.8"
Covered Pipe
& Cable Tray
Max.4"
Covered Pipe
& Cable Tray
Max.4"
Pipe rack with cover
Min.8"
Min.8"
Handling Obstacles
When an obstacle, such as an I-Beam or Concrete T, is in the path of the planned refrigerant pipe run, it is best practice to route the pipe
over the obstacle. If adequate space is not available to route the insulated pipe over the obstacle, route the pipe under the obstacle. In either case, it is imperative the horizontal section of pipe above or below the obstacle be a minimum of 3 times greater than the longest vertical
rise (or fall) distance.
Figure 51: Installing piping above and below an obstacle
3X
a. Above an obstacle
74
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SYSTEM ENGINEERING
b.Below an obstacle
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PIPING DESIGN GUIDE
Underground Refrigerant Piping
Refrigerant pipe installed underground should be routed inside
a vapor tight protective sleeve to prevent insulation deterioration
and water infiltration. Refrigerant pipe installed inside underground casing should be continuous without joints. Underground refrigerant pipe and conduit must be located at a level
below the frost line.
Table 31: Utility Conduit Sizes
Vapor Pipe
5/81 (2-1/82,5)
3/41 (2-1/42,5)
1/41 (1.03)
4
4
4
3/81 (1-1/83)
4
4
5
1/21 (1-1/24)
5
5
5
5/8 (1-5/8 )
5
5
5
3/4 (1-3/4 )
5
5
5
Liquid Pipe
1
4
1
4
2,5
1. OD Pipe diameter in inches.
2. Values in parenthesis () indicate OD of pipe with insulation jacket.
3. Diameter of pipe with insulation. Thickness of pipe insulation is typical. Actual required
thickness may vary based on surrounding ambient conditions and should be calculated and
specified by the design engineer.
4. Liquid line with 3/8" thick insulation.
5. Liquid line with 1/2" thick insulation.
Figure 52: Typical arrangement of refrigerant pipe and cable(s)
in a utility conduit
Power Cable
Vapor Line
Liquid Line
Min. spacing required
(See Table 31)
Pipe Sleeve
Min. to Gauge
Communication
Cable
If the lines are laid inside a multi-conduit chase, consider these
factors when grouping various elements together:
• Power lines (including power supply to air conditioner)
and communication cables must not be laid inside the
same conduit.
• In the same way, when grouping, power and communication cables should not be bunched together.
Table 32: Required Separation Between Power and Control Wiring
Current capacity of power line
Spacing
10A
11-7/8 inch
50A
19-5/8 inch
100A
39-1/4 inch
Exceed 100A
59 inches
100V or more
Based on a maximum 328 foot power cable. Increase spacing proportionally for cables beyond
328 feet.
If power is known to be dirty, the recommended spacing in the table should be increased.
Use only the pipe size selected by LATS Multi V software. See "LATS
Multi V" on page 61. Installing a different size than specified by LATS is
prohibited and may result in a system malfunction or failure to work at all.
Pipe Bends
Use long radius bends when bending soft copper. Refer to Table 28 on
page 72 for minimum radius specifications.
Pipe Sleeves and Wall Penetrations
LG requires that all pipe penetrations through walls and floors must be
properly insulated. Route pipe through a wall using an appropriately
sized wall sleeve. A properly sized sleeve prevents the compression of
refrigerant pipe insulation and allows the pipe to move freely within the
sleeve.
Figure 53: Typical pipe penetration
Sealant
Pipe Insulation
Wall Sleeve
Installation of Refrigerant Pipe/Brazing
Practices
1. LG indoor and outdoor units contain capillary tubes, orifices,
electronic controlled expansion valves, oil separators, and heat
exchangers that can easily become blocked if debris, such as copper
burrs, slag, and carbon dust is introduced to the pipe system during
installation. Keep the piping system free of contaminants. Filter
dryers cannot be used.
a.
b.
c.
d.
Store pipe stock in a dry place.
Keep stored pipe capped and clean.
Blow all pipe sections clean with dry nitrogen prior to assembly.
De-bur and clean all cuts before assembly.
2. Proper system operation depends on the installer using best practices and the utmost care while assembling the piping system.
a. Use adapters to assemble different sizes of pipe.
b. Do not use flux, soft solder, or anti-oxidant agents.
c. Use a tubing cutter. Do not use a hacksaw to cut pipe.
3. When brazing, always use a dry nitrogen purge and maintain a
steady flow while brazing.
4. When brazing, use a 15% silver phosphorous copper brazing alloy,
such as Stay-Silv 15, to avoid overheating and produce good flow.
5. P
rotect heat sensitive components while brazing. Use a wet rag or a
Cool Gel™ type product when located near brazing operations.
Due to our policy of continuous product innovation, some specifications may change without notification.
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SYSTEM ENGINEERING
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75
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
1/2 (2.0 )
1
No Pipe Size Substitutions
PIPING DESIGN GUIDE
Refrigerant Pipe System Insulation
The design engineer should perform calculations to determine if the
factory supplied insulation jackets have sufficient thickness to meet
local codes and avoid sweating at jobsite conditions. Technical data
on factory insulation can be found in the Cut Sheet section—"YBranch Kits" on page 84 and "Header Kits" on page 5. Add additional insulation if necessary. Check the fit of the insulation jacket
provided with the LG Y-Branch and Header kits after all pipes are
brazed to fittings. Mark all pipes at the point where the insulation
jacket ends. Remove the jacket. Install field-provided insulation
on pipes segments first. Then install the LG provided insulation
plugs on the ends of all unused Header ports. Then apply clamshell
insulation on jackets to Y-Branches and Header fittings. Peel the
adhesive glue protector strips from the insulation jacket and install
the clam-shell jacket over the fitting.
System Engineering
The liquid and vapor lines must be insulated separately. All refrigerant piping, including Y-Branch and Header fittings, field-provided
isolation ball valves, service valves, elbows, and other specialties
must be thoroughly insulated using a closed-cell insulation, such as
Armaflex or equivalent. All joints must be glued with no air gaps. Insulation material must fit snugly against the refrigeration pipe with no
air space between the pipe and insulation material. Insulation passing through pipe hangers, inside conduit and/or wall sleeves should
not be compressed. Protect insulation inside hangers and supports
with a second layer of insulation. All pipe insulation exposed to
direct sun light and/or deterioration producing elements should be
covered with a PVC or aluminum vapor barrier jacket, or alternatively
placed in a weather resistant enclosure, such as a pipe rack with a
top cover. See Figures 49 and 50 on page 74.
76
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SYSTEM ENGINEERING
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JOBSITE CONNECTIONS
ARUN 036, 047, 053
Figure 54: System
Control Board
Figure 55:
Communication
Ground Termination2
Figure 56: Power Wire Terminations
L1 = left
L2 = center
Earth Gnd = right
Power Wiring
Route control wiring and power wiring in separate conduits.
All wiring must conform to NEC and
local codes.
Unit disconnect and wiring is field
supplied.
Communication
Cables
Lightning Protection
Field-supplied where applicable.
Installed per local code.
Figure 58: Refrigerant Pipe
Connection Point1
Figure 59: Refrigerant
Pipe and Electrical
Knockouts
Fused Disconnect
provided by others
Note:
1. For detailed information, refer to "Dimensional Data and Weights" on page 3 and "Pipe and Electrical Connections" on page 4
for exact location of pipe and electrical connections.
2. Minimum 18 AWG, shielded, stranded, 2 conductor or size per local code (whichever is larger).
3. Refer to Table 2 on page 15 for full load ampere ratings. Size all wiring and field-provided components per local codes.
Due to our policy of continuous product innovation, some specifications may change without notification.
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SYSTEM ENGINEERING
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77
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
Figure 57:Communication
Cable Separated from Power
Wiring
See Figure 55, Figure 56, and
Figure 57.
See page 74 for all low voltage
wiring termination details.
JOBSITE CONNECTIONS
Low Voltage Wiring
Figure 60: Communications Wiring Terminals
A. Use 2-conductor stranded and shielded wire
with the shield grounded at the outdoor unit.
System Engineering
B. Connect the communications cable between indoor units using a daisy chain configura-
tion only. “Star” or “home run” control wiring connections involving soldering or wire caps are not permitted.
C. Minimum 18 AWG, 2 conductor stranded shielded copper cable only.
1
12V
ower source for selected
P
controllers
2
GND
Ground
3
DRY 2
4
DRY 1
Fan Only/Cool/Heat
Selector Switch or customer
supplied system shutdown
switch—See the "Controls"
section starting on page 83 for
more information
5
Internet A
6
Internet B
7
IDU-A
8
IDU-B
9
SODU-A
D. Provide separate conduits for control wiring and power wiring.
E. Power and communications cables must not be routed in the same conduit and must be routed in a manner that does not cause communication problems. For more
information, refer to Table 29 on page 75.
F. Connect outdoor unit terminal IDU-A to the odd numbered indoor unit terminal. Terminal “A” on the indoor units may be
tagged 3(A) or 5(A).
door unit terminal “B”. Terminal “B” on the indoor units may be tagged 3(B) or 5(B).
10 SODU-B
H. Maximum allowed length of indoor unit com-
munication cable is 984 feet.
Figure
V System—Daisy-Chain
CableWiring
Wiring
Figure61:
73Multi
– MultiV
System – Daisy-Chain Communications
Communications Cable
5A 6B
3A 4B
5A 6B
5A 6B
3A 4B
3A 4B
Note:
1.Communications cable shield is grounded at ODU only.
2.Maintain polarity throughout the communication network.
78
|
SYSTEM ENGINEERING
Indoor Unit(s)—
Communication Buss Connection—See Figure 61
Not used with Multi V Mini
G. Connect outdoor unit terminal IDU-B to in-
IDU-B
IDU-A
Central Control and Building Automation System
Communication Buss
Connection—Connect LG
Central Controller and/or
BMS gateway products
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MINI REFRIGERANT CHARGE
General
Consider refrigerant safety in all designs. Refer to "ASHRAE
Standards Summary" on page 88 for information on how to
meet the requirements of ASHRAE Standard 15 and 34.
To properly charge a Multi V Mini system, it is imperative to know
the “as-built” physical length of each segment of the liquid line.
The installer must also have an accurate count of the types and
sizes of refrigerant pipe fittings used to build the system’s liquid
line.
1. Make a copy of Table 30.
3. Calculate the total linear feet of liquid line tubing in the system.
Record the values using lines 1–3 in Table 30.
5. Group indoor units by size as indicated in the description fields
on lines 4–29 of Table 30. Record the quantity of units in each
group on the appropriate lines.
6. If the outdoor unit is a nominal 36k, record a negative 1.1 lbs
in the “Total” field on line 31.
Calculate the System Refrigerant Charge
7. Sum the Total column values on lines 1-31 and place in the
field labeled System Trim Charge.
8. If the value of the trim charge is positive, add refrigerant. If
negative, remove refrigerant.
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
2. Create an as-built drawing of the system’s liquid line or mark
up a tree mode piping diagram from LATS Multi V. Document
the linear feet of straight pipe and the quantity and type of
each fitting by pipe diameter.
4. Count the number of indoor units. Group them by model type
and nominal capacity.
9. Add the Outdoor Unit Factory Charge to the Trim Charge. This
is the System Charge. Record in the appropriate field.
Due to our policy of continuous product innovation, some specifications may change without notification.
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SYSTEM ENGINEERING
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79
MINI REFRIGERANT CHARGE
Refrigerant Charge—ARUN 036, 047, 053
Table 33: System Refrigerant Charge Calculator (lbs.)
Job Name_______________________________________
System Tag or ID____________________________________
Project Manager__________________________________
Date___________________________________________
System Engineering
Line #
Description
Chassis I.D.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Linear feet of 1/4" liquid line tubing2
Linear feet of 3/8" liquid line tubing2
Linear feet of 1/2" liquid line tubing2
Wall Mounted + Art Cool Mirror
Wall Mounted + Art Cool Mirror
1-Way Cassette
1-Way Cassette
2-Way Cassette
4-Way 2' x 2' Cassette
4-Way 2' x 2' Cassette
4-Way 2' x 2' Cassette
4-Way 3’ x 3’ Cassette
4-Way 3' x 3' Cassette
4-Way 3’ x 3’ Cassette
4-Way 3' x 3' Cassette
4-Way 3' x 3' Cassette
High Static Ducted
High Static Ducted
Low Static Ducted
Low Static Ducted
Low Static Ducted
Low Static Ducted Bottom Return
Low Static Ducted Bottom Return
Vertical / Horizontal Air Handling Unit
Vertical / Horizontal Air Handling Unit
Vertical / Horizontal Air Handling Unit
Ceiling Suspended
Convertible Surface Mount—Ceiling / Wall
Floor Standing
Floor Standing
31
Outdoor Unit Factory Refrigerant Charge (Choose One)
—
—
—
SB, SE
SC, S8
TU
TT
TL
TR
TR
TQ
TNA
TPC
TMA
TNC
TMC
BG
BR
L1
L2
L3
B3
B4
NJ
NJ
NK
VJ
VE
CE (U)
CF (U)
ARUN 036 ODU
ARUN 047 ODU
ARUN 053 ODU
Size
—
—
—
5k to 15k
18k to 24k
7k to 12k
18k to 24k
18k to 24k
5k to 7k
9k to 12k
15k to 18k
7k to 24k
24k to 28k
24k to 36k
36k
42k to 48k
7k to 42k
48k
7k to 9k
12k to 18k
24k
7k to 15k
18k to 24k
12k to 30k
36k
42k to 54k
18k to 24k
9k to 12k
7k to 15k
18k to 24k
Quantity
CF (Ref.)1
0.015
0.041
0.079
0.53
0.62
0.44
0.64
0.35
0.40
0.55
0.71
0.89
1.06
1.08
1.41
1.41
0.97
1.34
0.31
0.42
0.55
0.37
0.82
1.04
1.57
2.00
0.77
0.22
0.37
0.82
-1.1
0
0
Trim Charge (lbs.) (sum lines 1-30)
ODU Factory Charge ARUN 036, 047, 053
SYstem Charge, Total of Trim and Factory Chage (lbs.)
1.
2.
80
For charging purposes, consider only the liquid line, ignore the vapor line.
Maximum quantity of indoor units allowed:
ARUN 036 = 6
ARUN 047 = 8
ARUN 053 = 9
|
SYSTEM ENGINEERING
3.
4.
5.
If trim charge is negative, remove refrigerant.
If trim charge is positive, add refrigerant.
Take appropriate actions at the end of the equipment's
useful life to recover, recycle, reclaim, or destroy R410A
refrigerant according to applicable US EPA rules.
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Total (lbs.)
6.6
CUT SHEETS
"Dimensional Data and Weights" on page 82
"Pipe and Electrical Connections" on page 83
"Y-Branch Kits" on page 82
"Header Kits" on page 83
CUT-SHEET
Dimensional Data and Weights
Figure 62: Unit Dimensions
Table 34: Unit Weight Information (lbs)
W
L8
L9
Legend:
= Center of Gravity
L = Length Dimension
Model
Operating
Shipping
ARUN036GS2
234
258
Mounting Point Weights
D
Y
L7
X
L6
L2
Plan View
1
2
3
4
87
33
83
31
ARUN047GS2
234
258
87
33
83
31
ARUN053GS2
234
258
87
33
83
31
L10
L1
W (Width)
H
L5
Z
Front View
L4
L3
End View
H (Height)
54-1/4
D (Depth)
15-11/32
L1
1-1/4
L2
24-23/32
L3
15/16
L4
1-7/16
L5
1-9/16
L6
2-7/16
L7
1-9/16
L8
1-5/16
L9
6-9/16
L10
13-1/32
Center of Gravity
End View
Front View
X
See Pipe & Electrical Connections Cut Sheet
Figure 63: Maintenance and Air Flow Clearances
Note:
The arrows show the direction of airflow.
37-13/32
10-3/16
Y
6-11/16
Z
21-15/32
Image not to scale. All dimensions ± 0.25 inches.
Consult NEC for required electrical clearances.
Figure 63 depicts the minimum airflow clearance
data provided is for a single unit installation placed
in an open area without overhangs or near other
heat rejecting equipment. Refer to "Placement
Considerations" on page 57 or "Clearance Requirements" on page 59 for minimum requirements for complex installation scenarios.
24-3/8
Bolt Diameter - 1/2” (typical of 4)
14-3/8
12” Min.
Maintenance
Clearance
Power wiring cable size must comply with the applicable local and national code.
Must follow installation instructions in the applicable LG installation manual.
Compressor and
control component
access
Base pan drain holes (Typical of 5)
24” Min. Maintenance Clearance
82
|
CUT SHEET
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
CUT-SHEET
Pipe and Electrical Connections
Figure 64: 036, 047, 053 Piping
Options—Front/Side Connections
Figure 65: 036, 047, 053 Piping
Options—Rear Connections
Table 35: Outdoor Unit Pipe Connections (in.)
Liquid
Model
Conn
Type
Conn
Type
ARUN036GS2
3/8”
Braze
5/8”
Braze
ARUN047GS2
3/8”
Braze
5/8”
Braze
ARUN053GS2
3/8”
Braze
3/4”
Braze
Figure 68: 036, 047, 053
Side Connections
Figure 67: 036, 047, 053
Rear Connections
Figure 66: 036, 047, 053
Front Connections
Vapor
2
2
1
1
1
2
3
3
4
4
4
Table 36:Outdoor Unit Wiring Connections
H
G
F
ID
Description
Use
1
1.0” Knockout
2
1-1/4” Knockout
• Power or communications conduit
• Liquid line connection
3
4”x5” Cutout
4
4”x2” Cutout
3
Notes
2
• Bundled pipe connection
G
3
• Power and communications wiring
4
F
Figure 69: 036, 047, 053 Front Connection Detail
2
I
1
K
J
2
Use rubber or polymeric resin grommets.
I
1
1
H
• K
eep pests out.
G
3
Fill area around pipe bundle with spray foam and suitable weather tight cover.
F
4
• Gasket rough metal edges to protect pipe and wire chaffing.
Figure 71: 036, 047, 053
Side Connection Detail
4
Figure 70: 036, 047, 053 Rear Connection Detail
H
3
K
C
A
D
B
E
J
I
E
H
D
B
G
F
C
A
D
E
E
I
C
E
H
D
B
B
F
F
E
C
B
CH
G
G
A
I
D
D
A
C
B
A
L
M
A
Table 37: ARUN 036, 047, and 053 Piping and Electrical Connection Dimensions (in.)
A
B
C
D
E
F
G
H
I
J
K
L
M
Front
1.0
2-1/4
4-1/8
5-3/16
6-3/8
1.0
Rear
1.0
2.0
3-7/8
5-3/16
6-3/8
1.0
1-7/8
4-1/8
4-11/16
—
—
—
—
1-7/8
3-11/16
4-11/16
—
—
—
—
Side
1.0
2-1/4
4-1/8
5-3/16
6-3/8
1.0
1-7/8
4-1/8
4-11/16
6.0
11-7/16
3-7/8
5-7/8
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
CUT SHEET
|
83
CUT-SHEET
Y-Branch Kits
Figure 73:Figure
Reducer
parts (Table
37)
XX - Y-branch
dimensions
Figure
72: Y-Branch connectors (Table 35)
Figure XX - Y-branch and adapter connections
Outlet ports
7
8
10
Adapter (A)
9
10 11
Inlet ports
1 2 3
11
Nominal Capacity Range (Values expressed in BTUs)
A
10
B
Fitting Capacity
≤ 54,600 connected capacity
ARBLN03321
≤ 76,400 connected capacity
Values expressed in BTUs
11
C
D
Fitting Properties
E
4
5 6
Outlet ports
Material
Copper
Design Pressure
551 psig
Figure
XX - Y-branch
Figure
74: Y-Branch
connection dimensions
dimensions (Table 36)
Insulation Jacket Properties
Material
r (A)
11
Model
ARBLN1621
12
Polyolefin Foam
UL94 Flame Classification
A
A
HF-1
Density
B
B
1.84 lbm/ft3
Thermal Conductivity
C
C
D
D
.0208 Btuh/ft ºR
Thickness
0.5 Inches
E
E
Table 38: Y-Branch Connection Diameters (in-ID) (Reference Figure 72)
Model
Y-Branch Type
ARBLN01621
ARBLN03321
Port Identifier
1
2
3
4
5
6
7
8
9
Liquid
—
1/4
3/8
3/8
1/4
—
3/8
1/4
—
Vapor
—
5/8
1/2
1/2
5/8
—
1/2
5/8
—
Liquid
—
1/2
3/8
3/8
1/2
1/4
3/8
1/2
1/4
Vapor
1
7/8
3/4
5/8
3/4
1/2
5/8
3/4
1/2
ID = Inside Diameter
Table 39: Y-Branch Dimensions (in) (Reference Figure 74)
Model
Y-Branch Type
ARBLN01621
ARBLN03321
A
B
D
E
Liquid
2-29/32
6-9/16
8.0
C
11-1/16
11-1/2
Vapor
2-29/32
4-1/2
8.0
11-1/16
11-1/2
Liquid
2-29/32
4-1/2
8.0
12-5/8
13-1/16
Vapor
3-9/32
6-29/32
10-29/32
15-11/32
16-1/4
Table 40: Reducer Diameters (in) (Reference Figure 73)
Model
ARBLN01621
Qty/Kit
2
Reducer type
10
11
12
Length
Liquid
1/2 ID
3/8 OD
—
2-3/4
Vapor
3/4 ID
5/8 OD
—
2-3/4
Liquid
ARBLN03321
3
Port Identifier
Vapor
—
—
—
—
1-1/8 ID
1 OD
—
3-5/32
7/8 ID
3/4 OD
—
2-3/4
7/8 ID
3/4 OD
4-11/32
1 ID
The Y-Branch kits include a Polyolefin foam,
clam shell, peel and stick, insulation jacket for
each Y-Branch.
LG Y-Branch fittings must be used. Field-supplied branch fittings are not permitted.
Kit components must be kept free of debris and
dry before installation.
ID = Internal Diameter, OD = Outside Diameter
All dimensions in inches. Tolerance ± 0.25
inch.
84
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
|
CUT SHEET
Images are not to scale.
Must follow installation instructions in the applicable LG installation manual.
CUT-SHEET
Header Kits
Figure 75: 4-Port Header pipe connections
(See Table 39)
35
Figure 76: 4-Port Header dimensions
(See Table 38)
Nominal Capacity Range
7
4
6
A B
3
2
1
5
4
D
E
2
Port Capacity
≤ 54,600 per port
ARBL057
≤ 76,400 connected capacity
≤ 54,600 per port
ARBL104
≤ 160,400 connected capacity
≤ 76,400 per port
ARBL107
< 160,400 connected capacity
< 76,400 per port
Fitting Properties
F
G
Figure 78: 7-Port Header dimensions
(See Table 38)
Material
Copper
Design Pressure
551 psig
7
Insulation Jacket Properties
6
A B
1
Fitting Capacity
≤ 54,600 connected capacity
Values expressed in BTUs
C
Figure 77: 7-Port Header pipe connections
(See Table 39)
Model
ARBL054
Material
3
C
D
Polyolefin Foam
UL94 Flame Classification
E
F
G
HF-1
Density
H
I
1.84 lbm/ft3
Thermal Conductivity
J
.0208 Btuh/ft ºR
Thickness
0.5 Inches
Table 41: Header Dimensions (in)
Model
Header Type
A
B
C
D
E
F
G
H
I
J
ARBL054
(4 port)
Liquid
5-29/32
4-23/32
4-3/4
7
9-1/2
11-4/5
14-5/32
—
—
—
Vapor
5-29/32
4-23/32
4-3/4
7
9-1/2
11-4/5
14-5/32
—
—
—
ARBL057
(7 port)
Liquid
5-29/32
4-23/32
4-3/4
7
9-1/2
11-4/5
14-5/32
16-1/2
19
21-1/4
Vapor
5-29/32
4-23/32
4-3/4
7
9-1/2
11-4/5
14-5/32
16-1/2
19
21-1/4
ARBL104
(4 port)
Liquid
5-29/32
4-23/32
4-3/4
7
9-1/2
11-4/5
14-5/32
—
—
—
Vapor
5-29/32
4-23/32
6-3/10
8-3/5
11
13-2/5
15-23/32
—
—
—
ARBL107
(7 port)
Liquid
5-29/32
4-23/32
4-3/4
7
9-1/2
11-4/5
14-5/32
16-1/2
19
27-9/16
Vapor
5-29/32
4-23/32
6-3/10
8-3/5
11
13-2/5
15-23/32
18-1/10
20-1/2
22-27/32
Table 42: Header Connection Diameters (in)
Model
ARBL054
ARBL057
ARBL104
ARBL107
Header Type
Port Identifier
1
2
3
4
5
6
7
Liquid
—
3/8
1/2
3/8
1/4
1/4
3/8
Vapor
—
5/8
3/4
5/8
1/2
1/2
5/8
Liquid
—
3/8
1/2
3/8
1/4
1/2
5/8
Vapor
—
5/8
3/4
5/8
1/2
1/2
5/8
Liquid
—
3/8
1/2
3/8
1/4
1/4
3/8
Vapor
7/8
1
1-1/8
3/4
5/8
1/2
5/8
Liquid
—
3/8
1/2
3/8
1/4
1/4
3/8
Vapor
7/8
1
1-1/8
3/4
5/8
1/2
5/8
A Header is a pipe that serves as a central
connection for multiple runout pipe segments
terminating at indoor units.
All dimensions in inches Internal Diameter. Tolerance ± 0.25 inch.
Shipped with plugging tubes (1/4 inch : 2 each, 1/2
inch : 2 each); Shipped with Insulation for plugging
tube (4 pcs).
Shipped with plugging tubes (1/4 inch : 2 each, 1/2
inch : 2 each; 3/5 : 2 each); Shipped with Insulation for plugging tube (6 pcs).
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
All Headers are shipped with insulation (one each
for vapor and liquid pipes).
CUT SHEET
|
85
86
|
CUT SHEET
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
U.S. DESIGN
STANDARDS
"ASHRAE Standards Summary" on page 88
"Building Sustainability" on page 92
ASHRAE STANDARDS SUMMARY
ASHRAE Standard 15-2004 and ASHRAE Standard 34-2007
Members of the American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE) have collaborated to develop voluntary
standards to assist design professionals with:
•
•
•
•
Industry best practices to safely use refrigerants
Guidelines to properly ventilate commercial buildings using various technologies
Proper control of building temperature and relative humidity
Design building systems to minimize energy and water consumption
U.S. Design Standards
Table 43: ASHRAE Publications
Standard 15-2004
Safety Standard for Refrigeration Systems
Standard 34-2007
Designation and Safety Classification of Refrigerants
Standard 62.1-2010
Ventilation for Acceptable Indoor Air Quality
Note: We are providing a summary of the standards impacting the design of the Multi V system or the safety of building occupants. Refer to the ASHRAE Standards for detailed design information.
Designing for Refrigerant Safety with Multi V—ASHRAE Standards 15 and 34
Standards 15-2004 and 34-2007 were developed to educate the design community on the safe use of refrigerants in commercial buildings
and to address the classification of refrigerants. All Multi V systems use R410A refrigerant, which ASHRAE Standard 15-2004 and ASHRAE
Standard 34-2007 classify in Safety Group “A1” and rate it as “neither” in the toxicity category titled “highly toxic or toxic under code classification.” These are the same ratings given to refrigerants R22, R134A, and R407C and are the safest ratings given in the standards to any
refrigerant.
The displacement of oxygen in an occupied space could lead to occupant asphyxiation in the event of a catastrophic release of the entire
system’s refrigerant charge. The standard allows a Refrigerant Concentration Limit (RCL) of 0.025 lbs/ft3 for R410A in most applications
(refer to the standard for exceptions). The RCL rating indicates the allowable concentration (by weight) of refrigerant per cubic foot of room
volume to avoid escape-impairing effects, such as oxygen deprivation, flammability, and cardiac sensitization.
Note:
This designation does not indicate that R410A is non-toxic. With high enough concentration levels, all refrigerants can be
hazardous.
The standards are written to cover worst case scenarios and assume that the complete system charge is released into a confined space
over a short period of time. If a refrigerant leak occurs, the actual concentration level in the confined space is dependent on the quantity of
refrigerant in the equipment and the volume of air available for dispersion and dilution.
The total estimated charge of the refrigeration system is calculated by either LG’s LATS Multi V (see "LATS Multi V" on page 61) refrigerant piping design software or manually by following the procedure titled "Mini Refrigerant Charge" on page 76 and the "System Refrigerant
Charge Calculator" worksheet on page 80. To apply the standard, the designer must first determine the occupied space with the smallest
cubic volume served by the system.
*
American Society of Heating, Refrigeration and Air Conditioning Engineers, Inc. (ASHRAE) Standard 15. 2007. Atlanta, GA. ASHRAE, Inc. Section 7.3.
88
|
U.S. DESIGN STANDARDS
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
ASHRAE STANDARDS SUMMARY
ASHRAE Standard 15-2004 and ASHRAE Standard 34-2007
Calculate the volume of air in each occupied space using the following guidelines to determine the dimensions of each space:
Nonconnected Spaces
Where a refrigerating system or a part thereof is located in one or more enclosed occupied spaces that do not
connect through permanent openings or HVAC ducts. Where different stories and floor levels connect through
an open atrium or mezzanine arrangement, the volume used is determined by multiplying the floor area of the
lowest space by 8.25 feet.*
Ventilated Spaces
Where a refrigerating system or a part thereof is located within an air handler, an air distribution duct system,
or an occupied space served by a mechanical ventilation system, the entire air distribution system shall be
analyzed to determine the smallest volume area.*
Closure
Closures in the air distribution system shall be considered. If one or more spaces of several arranged in parallel can be closed off from the source of the refrigerant leak, the volume(s) shall not be used in the calculation.*
Plenums
The space above a suspended ceiling shall not be included in calculating the refrigerant quantity limit in the
system unless such space is part of the air supply or return system.*
Supply/Return Ducts
The volume of the supply and return ducts and plenums shall be included when calculating the refrigerant
quantity limit in the system.*
Follow these steps to calculate the potential refrigerant concentration level:
1.
2.
3.
4.
Measure the occupied space dimensions (in feet).
Calculate the cubic foot volume of air in the smallest occupied space.
Divide the refrigerant charge of the Multi V system serving the area (lbs) by the results of step 2.
If the calculation indicates that the potential refrigerant concentration level is higher than the allowed RCL, increase the cubic volume of the
smallest occupied space or modify the piping system design.
5. The allowable RCL limit for most applications must be equal to or less than 0.025 lbs/ft3. However, in special occupied spaces, such as
hospitals and nursing homes, where occupants may have limited mobility, the allowable RCL limit is cut in half. See ASHRAE Standard 342007 and local code for detailed information.*
RCL (lbs/ft3) =
System refrigerant charge (lbs)
Volume of smallest occupied space (ft3)
To determine the volume of an occupied space, the designer must determine which spaces are connected, not connected, or ventilated.
Refer to Standard 34-2007 for help.
If the calculated RCL is above the allowable limit, there are two primary methods used to lower the RCL:
1. Increase the volume of the occupied space.
2. Decrease the size of the refrigerant charge.
Per Standard 34-2007, acceptable methods used to increase the volume of an occupied space include:*
•
•
•
•
Install transfer ducts between rooms.
Undercut doors.
Include ventilation grilles in doors.
Include the area above the ceiling as part of the return or supply air path.
* Amercian Society of Heating, Refrigeration and Air Conditioning Engineers, Inc. (ASHRAE) 62.1-2010, sections 6.2 and 6.3
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
U.S DESIGN STANDARDS
|
89
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
Closure exceptions include smoke and fire dampers or combinations thereof that shut in an emergency and
are not associated with a refrigerant leak, and dampers where airflow is never reduced below 10% of its maximum with the fan running.
ASHRAE STANDARDS SUMMARY
ASHRAE Standard 62.1-2010
ASHRAE 62.1-2010—Ventilation for Acceptable Indoor Air Quality
Over the past twenty years, publications have documented that the occupant's well being, productivity, and comfort is significantly impacted
if the building is not properly ventilated. Providing proper ventilation air directly and significantly increases a building’s overall energy
consumption and operating costs. In an effort to reduce medical and legal costs as well as the cost associated with personnel turnover,
occupant companies and human resource personnel today consider the lease premium associated with tempering and cleaning ventilation
air relatively insignificant. Standard 62.1-2010 is known as the Indoor Air Quality (IAQ) Performance Standard. The standard documents
key strategies for maintaining minimum IAQ, including limiting the introduction of potential contaminants into the occupied areas originating
from indoor and outdoor sources. The standard also addresses the proper introduction of ventilation (outdoor) air into the building using two
methods:
U.S. Design Standards
1. The Ventilation Rate Procedure (VRP) is a prescriptive approach that sets minimum design requirements when sizing the building’s ventilation equipment including:
• Outdoor air quality requirements
• Treatment procedures used if the outdoor air is deemed contaminated
• Volume of outdoor air that must be introduced to the occupied areas of commercial, institutional, vehicular, industrial, and residential buildings
2. The IAQ compliance procedures:
The standard, under section 6.3, allows the designer to significantly reduce the ventilation air volume required using the VRP procedure
when high efficiency air filtration products designed to remove particulate and gas phase contaminates are specified. This procedure is
a performance-based design approach where the indoor air quality in the occupied areas is actively monitored using sensing devices.
When the IAQ falls below specified levels, the volume of outside air introduced into the building is modified.*
There are three methods used for ventilating buildings:
1. Mechanical “active” ventilation
2. Natural “passive” ventilation
3. Mixed-mode “active and passive” ventilation
The intent of this discussion is to provide guidance for the designer when applying active mechanical ventilation methods in conjunction with
Multi V variable refrigerant flow equipment. Multi V indoor units are designed for quiet operation and room air recirculation. Inherently, quiet
fans cannot produce a significant amount of static pressure. Thus, Multi V indoor units do not have the capability to “draw” ventilation air.
Ventilation air must be “pushed” to the indoor unit. In all designs, the outside air must be introduced using a separate fan that is specifically
designed for the task.
There are three methods to mechanically introduce outside air into individually occupied areas and rooms. When considering which method
to use, the designer should choose a design that minimizes potential maintenance costs and operational problems.
Method 1:
Decoupled Ventilation Air: This is the preferred method to use with all LG air conditioning products. From a common
outside air inlet, filter and pre-treat the air temperature to room neutral conditions, and duct the ventilation air to the ceiling
or wall registers in each breathing zone. Use this method when cost and operational problems are a priority. It can be
used in all applications and in conjunction with any type of Multi V indoor unit. When using Method 1 and the outside air
pre-treatment device experiences component failure due to filtering, heating, or cooling, the occupant will readily notice
the resulting untreated air and can notify the building engineer of the problem. More importantly, the failure is less likely to
impact the Multi V system.
USGBC. 2009. Green Building Design & Construction. Washington, DC. USGBC Staff. Page 535
* Amercian Society of Heating, Refrigeration and Air Conditioning Engineers, Inc. (ASHRAE) 62.1-2010, sections 6.2 and 6.3
90
|
U.S. DESIGN STANDARDS
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
ASHRAE STANDARDS SUMMARY
ASHRAE Standard 62.1-2010
Method 2:
Coupled Pre-Treated Ventilation Air: From a common outside air inlet, filter and pre-treat the air temperature to room neutral
conditions, and duct the ventilation air to the ceiling cassette or recessed-ducted Multi V indoor units. Multi V indoor units
are designed for quiet operation and room air recirculation. Inherently, quiet fans cannot produce a significant amount
of static pressure. Thus, Multi V indoor units do not have the capability to “draw” ventilation air. Ventilation air must be
“pushed” to the indoor unit. Also, in the event the ventilation air is outside the indoor unit design parameters and the return
and ventilation air streams fail to mix properly before entering the indoor unit coil, air stratification may occur causing erratic behavior of the Multi V indoor unit.
Method 3:
Introduce Untreated Ventilation Air: From an outside air opening, duct filtered, untreated ventilation air to Multi V indoor units.
This method can be employed in limited regions of the country where year round ambient conditions and air quality would
provide the indoor unit mixed air within LG’s published acceptable conditions. Refer to the "Building Ventilation" on page
48 for more information.
USGBC. 2009. Green Building Design & Construction. Washington, DC. USGBC Staff. Page 535
* Amercian Society of Heating, Refrigeration and Air Conditioning Engineers, Inc. (ASHRAE) 62.1-2010, sections 6.2 and 6.3
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
U.S DESIGN STANDARDS
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91
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
Operationally, the designer must consider many “what if” failure scenarios and understand the impact on building HVAC
system operations. Negative building pressure conditions may impact the indoor unit fan’s ability to pass the proper
amount of air over the indoor unit coil. This could occur if the ventilation system supply fan is disabled or ventilation dampers malfunction while the building exhaust fans continue to operate. In this case, the indoor unit coil may desperately need
air as negative static pressure builds at the inlet of the indoor unit. On the other hand, when using non-ducted indoor unit
models in conjunction with a constant flow of ventilation air and the Multi V indoor unit supply air volume is reduced below the
ventilation air volume (the space temperature is satisfied), the ventilation air may flow backwards through the filter media and
return air grille. Captured particulate from the filter media may discharge into the room.
BUILDING SUSTAINABILITY
USGBC—LEED Green Building Rating System
For decades, commercial building financial performance criteria influenced architects and engineers to focus on lowering the cost of construction. The trade-off for lower first-cost was higher energy consumption and poor indoor air quality. In recent years, with the advent of
exploding fossil fuel costs and record litigation settlements related to poor indoor air quality, many designers have responded by adopting a
new, more balanced design approach recognizing that designing with a long-term, sustainable perspective emphasizing first-cost, life-cycle
cost, and the impact the development has on the environment will increase the building’s value.
U.S. Design Standards
The American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE) and the U.S. Green Building Council (USGBC)
have been instrumental in developing and documenting voluntary best practice standards that provide the construction industry an all encompassing balanced approach for developing sustainable “green” buildings.
USGBC, a private organization, has developed holistic design standards for developing new
and retrofitting existing buildings known as LEED® — Leadership in Energy and Environmental
Design. The LEED Green Building Rating System is a voluntary, consensus-based program
for developing high-performance, sustainable buildings. Based on well-founded scientific
standards, LEED emphasizes state-of-the-art strategies for sustainable site development,
water and energy conservation, and a guide for selecting construction materials that are easily
renewable and manufactured to promote indoor environmental quality.
Table 44: LEED Green Building Certification Designations
LEED 2009 Rating
System
New Construction,
Core & Shell, and Schools1
Existing Buildings
Operations and Maintenance2
Commercial Interiors3
Certified
40–49 credits
40–49 credits
40–49 credits
Silver
50–59 credits
50–59 credits
50–59 credits
Gold
60–79 credits
60–79 credits
60–79 credits
Platinum
80 credits and above
80 credits and above
80 credits and above
Products Developed for LEED® Generation
The Multi V variable refrigerant flow air conditioning system delivers state-of-the-art energy efficient performance making it easier for the
design team to earn LEED certification. Choosing LG Multi V in lieu of traditional technologies, such as chillers and gas boilers, to heat and
cool the building can have a positive impact on the design team’s pursuit of the LEED credits listed in Table 44.
Note: Each LEED credit typically relates to numerous building design variables and building system parameters that, as
a whole, allows the credit to be earned. No one product, or product manufacturer, including LG products, can guarantee
credits.
References:
USGBC. 2009. Green Building Design & Construction. Washington, DC. USGBC Staff. Page 535
LEED® is a registered trademark of the U.S. Green Building Council.
1. LEED Reference Guide for Green Building Design and Construction—2009 Edition
2. LEED Reference Guide for Green Building Operations and Maintenance—2009 Edition
3. LEED Reference Guide for Green Interior Design and Construction—2009 Edition
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U.S. DESIGN STANDARDS
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
BUILDING SUSTAINABILITY
USGBC—LEED Green Building Rating System
Table 45: Potential LEED Credits using LG Multi V
Category
Point ID
WE
EA
Certification Paths
Point Description
NC
CS
K12
Cl
O&M
CR-4
–
–
0
1
1–2
PR-1
0
0
0
0
–
Basic building commissioning
EA
PR-3
0
0
0
0
0
Refrigerant has no CFC’s (R410A)
EA
CR-1
1–19
3–21
1–19
–
1–18
EA
CR-1.3
–
–
–
5–10
–
Optimize energy performance—HVAC
EA
CR-2
–
–
–
5
–
Enhanced commissioning
EA
CR-2.3
–
–
–
–
2
Exist bldg.—Ongoing commissioning
EA
CR-3
2
2
2
–
–
Enhanced commissioning
EA
CR-3.1
–
–
–
–
1
Perf. measurement—bldg. automation
EA
CR-3.2
–
–
–
–
1–2
EA
CR-4
2
2
1
–
–
Enhanced refrigerant management
EA
CR-5
–
–
–
–
1
Enhanced refrigerant management
EA
CR-3
–
–
–
2–5
–
Measure and verify—Tenant submetering
EA
CR-5.1
–
3
–
–
–
Measure and verify—Base building
EA
CR-5.2
–
3
–
–
–
Measure and verify—Tenant submetering
MR
CR-1.1
–
–
–
1
–
Tenant space—Long-term commitment
MR
CR-1
–
1–5
–
–
–
Maintain exterior walls, floor, roof
MR
CR-1.1
1–3
–
1–2
–
–
Maintain exterior walls, floor, roof
MR
CR-1.1
–
–
–
1–2
–
Maintain non-structural elements
MR
CR-1.2
1
–
1
–
–
Maintain non-structural elements
IEQ
PR-2
–
–
Yes
–
–
Minimum acoustical performance
IEQ
1.4
–
–
–
–
1
Reduce particulates—Occupied space
IEQ
1.5
–
–
–
–
1
Reduce particulates—Construction area
IEQ
3.1
–
–
–
1
–
Reduce particulates in air distribution
IEQ
CR-6
–
1
–
–
–
Controllability—Thermal comfort
IEQ
CR-6.2
1
–
1
1
–
Controllability—Thermal comfort
IEQ
CR-7
–
1
–
–
–
Thermal comfort design
IEQ
CR-7.1
1
–
1
1
–
Thermal comfort design
IEQ
CR-7.2
1
–
1
1
–
Thermal comfort verification
IEQ
CR-9
–
–
1
–
–
Enhanced acoustical performance
IEQ
CR-10
–
–
1
–
–
Mold prevention
ID
1–5
1–5
1–5
1–4
1–5
1–4
Process water reduction
Optimize energy performance
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
Perf. measurement—Sys. level metering
Innovations in design or operations
No credits offered on prerequisite requirements. However, before any credits can be earned, prerequisite requirements must be met.
Definitions:
CI = Commercial Interiors
EA = Energy and Atmosphere
K12 = Schools
PR = Prerequisite
CR = Credit
ID = Innovations in Design
MR = Materials and Resources
RP = Regional Priority
CS = Core and Shell
IEQ = Indoor Air Quality
NC = New Construction
WE = Water Efficiency
O&M = Existing Building Operations and Maintenance
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
U.S DESIGN STANDARDS
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93
U.S. Design Standards
94
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U.S. DESIGN STANDARDS
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
MECHANICAL
SPECIFICATIONS
"VRF Multi V™ Mini Air Source Units (036, 047, 053)" on page 96
MECHANICAL SPECIFICATIONS
VRF Multi V™ Mini Air Source Units—ARUN 036, 047, 053
VRF Multi V™ Mini Air Source Units
(036, 047, 053)
General
The LG Multi V Mini heat pump system consists of an outdoor
unit, one or more indoor units, integrated system controls, and
interconnecting field-provided refrigerant pipe containing various fittings including Y-Branch kits and Header kits supplied by
LG. LG components are manufactured in a facility that meets or
exceeds International Organization for Standardization (ISO) 9001
and 14001. The units are listed by Intertek (ETL) and bear the
ETL listed mark.
Casing
Specifications
The outdoor unit case is constructed from 22-gauge coated
metal. Exterior panels are cleaned and finished with a weather
resistant baked enamel finish. An easily removable front corner
panel is provided to allow access to major components and control
devices. Outdoor unit fans are covered with guards made of
heavy gauge, heavy duty polymeric resin. The outdoor unit coil is
protected with a heavy gauge steel wire guard finished with baked
enamel. Paint color is “warm gray.“
Refrigeration System
The refrigeration system consists of a single refrigeration circuit
and uses refrigerant R410A. The outdoor unit is provided with factory installed components, including a refrigerant strainer, check
valves, oil separator, accumulator, hot gas bypass valve, liquid
injection valve, 4-way reversing valve, electronic controlled expansion valve (EEV), high and low side charging ports, service valves,
and interconnecting piping. Also included is an integral subcooler
assembly consisting of a double spiral tube type heat exchanger
and EEV providing refrigerant subcooling modulation up to 23°F.
The unit comes factory charged with 6.6 pounds of refrigerant.
Refrigeration Oil Control
The refrigeration oil level in the compressor is maintained using
a two-stage oil control system. The compressor discharge port
is equipped with an oil filtering device designed to restrict oil
loss from the compressor. The high-pressure discharge vapor
leaves the compressor and immediately enters a centrifugal oil
separator that has no moving parts designed to extract oil from
the refrigerant gas stream. A gravity drain returns captured oil
back to the compressor sump. The outdoor unit microprocessor is
programmed to flush the refrigerant piping system for a minimum
period of three minutes after six hours of compressor operation.
Single Inverter/Compressor
The outdoor unit is equipped with one hermetic, digitally-con-
96
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SPECIFICATIONS
trolled, inverter driven, rotary compressor. The compressor is specifically designed for the refrigerant provided and is manufactured
by LG. The frequency inverter is designed by LG and is capable
of providing a modulation range from 25Hz–90Hz in Cooling mode
and 25Hz–100Hz in Heating mode. The compressor motor is suction gas-cooled and has an acceptable voltage range of ±10% of
nameplate voltage. The compressor is equipped with a crankcase
heater and back seated service valves.
External suction and discharge temperature and pressure sensors
are provided to protect the compressor from damage caused by
over/under temperature or over/under pressure conditions. The
compressor is provided with a positive displacement oil pump
providing sufficient oil film on all bearing surfaces across the entire
inverter modulation range. The compressor is factory charged
with Polyvinylether (PVE) refrigeration oil having no hygroscopic
properties. Compressor bearings are Teflon® coated. The
compressor is wrapped with a heat resistant, sound attenuating
blanket and mounted on rubber isolation grommets.
Outdoor Unit Coil
Outdoor unit coils are a minimum of two rows, 17 fins per inch,
and manufactured using copper tubes with mechanically bonded
aluminum louvered fins. Fin surfaces are coated with Gold-Fin™
corrosion resistant hydrophilic silica gel coating. Coils are pressure tested at a minimum of 551 psig.
Fans & Motors
Units are furnished with two direct-drive propeller fans providing
horizontal airflow from the rear and discharging from the front of
the unit. Fan blades are 20-½ inch diameter, balanced, and made
of durable Lupos (ABS) polymeric resin. Motors are designed to
operate between 430 and 700 RPM in Cooling mode and between 500 and 750 RPM in Heating mode. Both fans are driven
by digitally-controlled inverters that vary the fan speed. Motors
are brushless, digitally-controlled (BLDC) and have permanently
lubricated and sealed ball bearings. All outdoor unit fans are controlled by an inverter drive mounted near the main microprocessor.
The outdoor unit fan speed is controlled using an algorithm that
provides three pre-programmed fan speeds. DIP switch adjustable settings limit night time (off peak) fan speed to reduce fan
generated noise by up to 10 dB(A).
Outdoor Unit Controls
Outdoor units are factory wired with necessary electrical control
components, printed circuit boards, thermistors, sensors, terminal
blocks, and lugs for power wiring. The control wiring circuit is low
voltage and includes a control power transformer, fuses, and interconnecting wiring harness with plug connectors. Microprocessorbased algorithms provide component protection, soft-start capability, refrigeration system pressure and temperature control, defrost,
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
MECHANICAL SPECIFICATIONS
VRF Multi V™ Mini Air Source Units—ARUN 036, 047, 053
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
HEAT PUMP CONDENSING UNIT ENGINEERING MANUAL
and ambient control. The unit is designed to provide continuous
compressor operation from -4°F to 118°F. When the system is
started, the connected indoor units are automatically assigned an
electronic address by the outdoor unit’s microprocessor. Additionally, each indoor unit is capable of accepting a manual assignment
of a secondary electronic address that, if used, provides unit tag
identification when integrating with LG VNet control devices. While
operating in the Heating mode, the outdoor unit has a demandbased defrost control algorithm and a refrigeration system pumpdown cycle designed to store up to 6.6 lbs of the system refrigerant
charge in the outdoor unit. In Heating mode, a cooperative-control
algorithm automatically balances, in real-time, the distribution of
refrigerant to the indoor units when the system’s refrigerant mass
flow is insufficient to satisfy the demand of all indoor units when the
system is called on to operate outside the system design parameters. In 10-second intervals, the outdoor unit microprocessor will
record the last three minutes of system run-time data in non-volatile
memory. Upon unit malfunction, or a power outage that results in
a system shutdown, the stored system operational data may be retrieved and analyzed to assist in diagnosing a system malfunction.
The outdoor unit microprocessor is provided with a three-digit, LED
display that communicates active system information and/or malfunction codes. The microprocessor has an algorithm that actively
verifies the operational condition of system sensors and thermistors. A refrigerant auto-trim-charge algorithm assists the installer
with properly charging the system. A power conditioning circuit is
provided and designed to protect the unit’s inverter compressor and
outdoor unit fan motors from phase failure, phase reversal, sense
an under-voltage or over-voltage condition, and to prevent transmission of power irregularities to the supply power source. A snow
throw algorithm is provided designed to reduce snow buildup on the
discharge side louvers grille at regular intervals.
SPECIFICATIONS
|
97
ACRONYMS
Table 46: Table of Acronyms
%OA
Percentage Outdoor Air
IUCF
Indoor Unit Correction Factor
%RA
Percentage Return Air
KTL
Korea Testing Laboratory
ABS
Acrylonitrile Butadiene Styrene
LEED
Leadership in Energy and Environmental Design
AC
Air Conditioner
LGAP
LG Air Condtioner Protocol
ACP
Advanced Control Platform
MAT
Mixed Air Temperature
ARI
Air Conditioning and Refrigeration Institute
MBh
Thousands BTUs per hour
ASHRAE
American Society of Heating, Refrigeration, and Air
Conditioning Engineers
MCA
Maximum Circuit Ampacity
AHU
Air Handling Unit
MFS
Maximum Fuel Size
AWG
American Wire Gauge
MOP
Maximum Overcurrent Protection
BLDC
Brushless DC Motors
MR
Material Resources (LEED Related)
Btu/h
British Thermal Units/hour
NC
New Construction (LEED Related)
CCR
Corrected Capacity Ratio
CDOA
Coupled Dedicated Outdoor Air
NEC
Normally Closed
National Electrical Code
CFM
Cubic Feet per Minute
NO
Normally Open
CI
Commercial Interiors (LEED Related)
OAT
Outdoor Air Temperature
COP
Coefficient Of Performance
O&M
Existing Building Operations and Maintenance (LEED Related)
CR
Combination Ratio
ODU
Outdoor Unit
CS
Core and Shell (LEED Related)
OUCF
Outdoor Unit Correction Factor
DB
Dry Bulb
PDI
Power Distribution Integrator
dB(A)
Decibels with “A” frequency weighting
PI
Power Input
DDOAS
Decoupled Dedicated Outdoor Air
PR
Prerequisite (LEED Related)
DI
Digital Input
PTAC
Packaged Terminal Air Conditioner
DO
Digital Output
PVE
Polyvinyl Ether
EA
Energy and Atmosphere (LEED Related)
RAT
Return Air Temperature
EEV
Electronic Expansion Valve
RCL
Refrigerant Concentration Limit
ELF
Equivalent Length in Feet
RP
Regional Priority (LEED Related)
EPDM
Ethylene Propylene Diene M-Class Rubber
RUR
Running Unit Ratio
ESP
External Static Pressure
K12
Schools (LEED Related)
ETL
Electrical Testing Laboratories
USGBC
U.S. Green Building Council (LEED Related)
HACR
Heating, Air Conditioning, and Refrigeration
VAH
Vertical Air Handler
H/M/L
High/Medium/Low
VAV
Variable Air Volume
IAQ
Indoor Air Quality
VRF
Variable Refrigerant Flow
ID
Innovations in Design (LEED Related)
VRP
Ventilation Rate Procedure
IDU
Indoor Unit
WE
Water Efficiency (LEED Related)
IEQ
Indoor Air Quality (LEED Related)
LG Electronics
Commercial Air Conditioning Division
11405 Old Roswell Road
Alpharetta, Georgia 30009
www.lg-vrf.com
Document Number: EM_MultiVMini_5_­15
Supersedes: VRF-EM-BB-US-013E03
VRF-EM-BB-001-US-012M27
VRF-EM-BB-001-US-012D20
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