LG | LUU188HV | Engineering Manual | LG LUU188HV Engineering Manual

SINGLE-ZONE
VERTICAL AIR HANDLING UNIT
ENGINEERING MANUAL
Single-Zone Vertical Air Handling Unit System
18,000 - 48,000 Btu/h
LV180HV4 (18,000 Btu/h)
LV240HV4 (24,000 Btu/h)
LV360HV4 (36,000 Btu/h)
LV420HV (42,000 Btu/h)
LV480HV (48,000 Btu/h)
PROPRIETARY DATA NOTICE
This document, as well as all reports, illustrations, data, information,
and other materials are the property of LG Electronics U.S.A., Inc., and are
disclosed by LG Electronics U.S.A., Inc. only in confidence.
This document is for design purposes only.
A summary list of safety precautions is on page 3.
For more technical materials such as submittals, catalogs, installation,
owner’s, and service manuals, visit www.lghvac.com.
For continual product development, LG Electronics U.S.A., Inc., reserves the right to change specifications without notice.
© LG Electronics U.S.A., Inc.
TABLE OF CONTENTS
Unit Nomenclature...........................................................................................................................................................................................................4
LG Air Conditioner Technical Solution (LATS)..........................................................................................................................................................5-6
Vertical Air Handling Unit Product Data...................................................................................................................................................................7-50
Mechanical Specifications ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������� 8-9
General Data ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������� 10-12
Electrical Data ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������ 13
Functions, Controls, and Options �������������������������������������������������������������������������������������������������������������������������������������������������������������������������� 14-15
Dimensions ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������ 16-19
Acoustic Data �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������� 20-30
Refrigerant Flow Diagrams ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������ 31-32
Wiring Diagrams, Dip Switch Settings ������������������������������������������������������������������������������������������������������������������������������������������������������������������� 33-37
Electrical Connections ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������� 38-42
External Static Pressure and Air Flow Ranges ������������������������������������������������������������������������������������������������������������������������������������������������������ 43-47
Accessories ����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������� 48-50
Vertical Air Handling Unit Application Guidelines................................................................................................................................................. 70-81
Placement Considerations������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������� 71-74
Clearances ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������ 75-77
Installing Outdoor Unit Indoors ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������ 78-79
Refrigerant Piping Design�������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������� 80-81
TABLE OF SYMBOLS
DANGER
This symbol indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury.
WARNING
This symbol indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
CAUTION
This symbol indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury.
Note:
This symbol indicates situations that may result in equipment or property damage accidents only.
This symbol indicates an action that must not be performed.
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
|
3
Introduction
Vertical Air Handling Unit Performance Data--------------------------------------------------------------------------------------------------------------------------------51-69
Cooling Capacity Data ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������� 52-56
Heating Capacity Data������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������� 57-61
Maximum Heating Capacity Data �������������������������������������������������������������������������������������������������������������������������������������������������������������������������� 62-66
Equipment Selection Procedure ���������������������������������������������������������������������������������������������������������������������������������������������������������������������������� 67-69
UNIT NOMENCLATURE
Indoor Units and Outdoor Units
L
V
N
180
H
Single Zone Vertical Air Handling Unit Engineering Manual
L = LG
Frame Type:
A: Art Cool™
S: Standard
C: Four-Way Ceiling-Cassette
D: Ceiling-Concealed Duct (Low Static)
H: Ceiling-Concealed Duct (High Static)
V: Vertical-Horizontal Air Handling
N: Indoor Unit
U: Outdoor Unit
No N or U: System
Nominal Capacity
(Nominal cooling capacity in Btu/h):
18 = 18,000
48 = 48,000
24 = 24,000
36 = 36,000
42 = 42,000
System Type:
H = Heat Pump
Style:
SV = High Efficiency Inverter
VP = Gallery
YV = Premier
EV = Mega
V = Standard Inverter
T = Thermostat Compatible
Generation:
4
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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.
V
4
LG AIR CONDITIONER
TECHNICAL SOLUTION (LATS)
LG Air Conditioner Technical Solution (LATS) Software
A properly designed and installed refrigerant piping system is critical to the optimal performance of LG air-conditioning systems. To assist
engineers, LG offers, free of charge, LG Air Conditioner Technical Solution (LATS) software—a total design solution for LG air conditioning
systems. Contact your LG Rep for the best software program for your application.
To reduce the risk of designing an improper applied system or one that will not operate correctly, LG requires that LATS software be used on all projects.
Formats
LATS is available to LG customers in three user interfaces: LATS HVAC, LATS CAD2, and LATS Revit. All three LATS formats are available
through www.myLGHVAC.com, or contact an LG Sales Representative.
LATS HVAC is a Windows®-based application that aids engineers in designing LG Variable Refrigerant Flow (VRF), Multi F / Multi F MAX,
Single-Zone, and Energy Recovery Ventilator (ERV) systems.
*Windows® is a registered mark of Microsoft® Corporation.
Figure 1:Example of LATS CAD2.
Introduction
LATS CAD2 combines the LG LATS program with AutoCAD®
software**. It permits engineers to layout and validate LG Multi V
Variable Refrigerant Flow (VRF), Multi F / Multi F MAX, Single-Zone,
and Energy Recovery Ventilator (ERV) systems directly into CAD
drawings.
LATS Revit integrates the LG LATS program with Revit® software**.
It permits engineers to layout and validate Multi V VRF systems
directly into Revit drawings.
**AutoCAD® and Revit® are both registered marks of Autodesk, Inc.
Features
All LG product design criteria have been loaded into the program,
making LATS simple to use: double click or drag and drop the component choices. Build systems in Tree Mode where the refrigerant
system can be viewed. Switch to a Schematic diagram to see the
electrical and communications wiring.
LATS software permits the user to input region data, indoor and outdoor design temperatures, modify humidity default values, zoning, specify
type and size of outdoor units and indoor units, and input air flow and external static pressure (ESP) for ducted indoor units.
The program can also:
• Import building loads from a separate Excel file.
• Present options for outdoor unit auto selection.
• Automatically calculate component capacity based on design
conditions for the chosen region.
• Verify if the height differences between the various system
components are within system limits.
• Provide the correct size of each refrigerant piping segment and LG
Y-Branches and Headers.
• Adjust overall piping system length when elbows are added.
• Check for component piping limitations and flag if any parameters
are broken.
• Factor operation and capacity for defrost operation.
• Calculate refrigerant charge, noting any additional trim charge.
• Suggest accessories for indoor units and outdoor units.
• Run system simulation.
Features depend on which LATS program is being used, and the type of system being designed.
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
|
5
LG AIR CONDITIONER
TECHNICAL SOLUTION (LATS)
LATS Generates a Complete Project Report
LATS software also generates a report containing project design parameters, cooling and heating design data, system component performance, and capacity data. The report includes system combination ratio and refrigerant charge calculations; and provides detailed bill of
material, including outdoor units, indoor units, control devices, accessories, refrigerant pipe sizes segregated by building, by system, by pipe
size, and by pipe segments. LATS can generate an Excel GERP report that can imported into the LG SOPS pricing and ordering system.
Single Zone Vertical Air Handling Unit Engineering Manual
Proper Design to Install Procedure
LG encourages a two report design-to-install-procedure. After the
design engineer determines building / zone loads and other details,
the engineer opens the LATS program and inputs the project’s information. When the design is complete, the “Auto Piping” and “System
Check” functions must be used to verify piping sizes, limitations, and
if any design errors are present. If errors are found, engineers must
adjust the design, and run Auto Piping and System Check again.
When the design passes the checks, then the engineer prints out
a project “Shop Drawing” (LATS Tree Diagram) and provides it to
the installing contractor. The contractor must follow the LATS Tree
Diagram when building the piping system, but oftentimes the design
changes on the building site:
•
•
•
•
Figure 2:Example of a LATS Tree Diagram.
Architect has changed location and/or purpose of room(s).
Outdoor unit cannot be placed where originally intended.
Structural elements prevent routing the piping as planned.
Air conditioning system conflicts with other building systems (plumbing, gas lines, etc.).
The contractor must mark any deviation from the design on the Shop Drawing, including as-built straight lines and elbows. This “Mark Up”
drawing must be returned to the design engineer or Rep, who must input contractor changes into the LATS file. (Copy the original LATS software file, save and rename as a separate file, and modify all piping lengths by double-clicking on each length and editing information.) Like
the shop drawing, the Auto Piping and System Check must also be run on this new “As Built” drawing. The design engineer or Rep must then
provide the final As Built file to the contractor. The Mark Up version must be compared to the As Built version for the following:
• Differences in pipe diameter(s). If incorrect diameters have been installed, the piping must be changed out. If pipe diameters have changed,
check to see if Y-Branches will also need to be changed.
• Changes to outdoor unit and indoor unit capacities. Capacities changes may impact line length changes.
• Additional refrigerant charge quantity (“Trim Charge”). Trim charge will change if piping lengths and diameters change. The As Built version
must reflect installed piping lengths to ensure correct trim charge.
All documents submitted by the contractor, as well as the Shop Drawing and the As Built Drawing files must be provided for commissioning
purposes. Model and serial numbers for all system components must also be submitted. If the steps previously detailed are not followed, and
all documents are not provided to the LG Commissioner, the project runs the risk of not being commissioned and voiding any limited warranty
LG offers on the equipment.
6
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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.
VERTICAL AIR HANDLING
UNIT PRODUCT DATA
“Mechanical Specifications” on page 8
“General Data” on page 10
“Electrical Data” on page 13
“Functions, Controls, and Options”on page 14
“Dimensions” on page 16
“Acoustic Data” on page 20
“Refrigerant Flow Diagrams” on page 31
“Wiring Diagrams” on page 33
“Electrical Connections” on page 38
“External Static Pressure and Airflow Ranges” on page 43
“Accessories” on page 48
MECHANICAL SPECIFICATIONS
Single Zone Vertical Air Handling Unit Engineering Manual
Casing
Air Filter
The unit is designed to operate in vertical up flow, down flow (requires conversion kit sold separately), horizontal left, and horizontal
right configurations.
Supply air exits from the top and return air enters from the bottom for
a vertical up flow configuration. Return air opening is from the top for
the vertical down flow configuration. Return air opening is from right
end or left end when in horizontal configuration.
The airflow circulation of the supply air and return air is reversed in
a vertical down flow configuration. Return air plenum sub-base is
to be field provided. Supply air opening has a male flange for duct
connection.
The unit case is made of 22-gauge coated metal and the external
surfaces are finished with a high gloss baked enamel finish. Finish
color is “morning fog” (medium beige). Cold surfaces are galvanized
steel.
The cold surfaces of the case are internally insulated with ½ inch
foil faced, polystyrene fiber insulation. The inside surface of the fan
assembly door access panel is treated with ½ inch polystyrene fiber
insulation, encapsulated on both sides, and sealed along the edges
with a reinforced foil-faced covering to prevent deterioration caused
by panel removal.
All access panels are provided with gasket seals to minimize air
leakage. The unit case is designed to accept an internal, optional,
LG electric strip heater. The unit bears the ETL label. Unit breaker,
fuses, and / or disconnect are provided by others.
Fan Assembly and Control
The indoor unit has an integral fan assembly consisting of a
galvanized steel housing and a forward-curved fan wheel. The direct
drive fan/motor assembly is mounted on rubber grommets isolating the rotating assembly from the fan housing. The fan motor is a
Brushless Digitally-Controlled design (BLDC), having permanently
lubricated and sealed ball bearings. The fan motor includes thermal,
overcurrent and low RPM protection. The fan/motor assembly is
mounted on vibration attenuating rubber grommets. The fan impeller is statically and dynamically balanced. Fan speed is controlled
using a microprocessor-based direct digital control algorithm that
provides a minimum of a high fan speed in cooling thermal ON and
low fan speed in cooling thermal OFF, high fan speed in heating
thermal ON and fan off in heating thermal OFF. The fan speeds can
be field adjusted between low, medium, and high speeds and DIP
switch settings will allow the fan to run constantly during defrost or
oil return modes. Each setting can be field adjusted from the factory
setting (RPM/ESP). The setting provides delivery of the high speed
air volume against an external static pressure of up to 0.70″ in-wg
(NJ frame - 18k and 24k), and 1.00″ in-wg (NK frame - 36k, 42k, and
48k).
8
| PRODUCT DATA
The unit comes with a filter rack sized to
hold a fieldprovided 16” x 20” x 1” (NJ frame) or
24” x 20” x 1” (NK frame) filter cartridge.
The filter rack is equipped with guides
that keep the filter centered in the rack.
Filter service access is from the front of
the unit without removing the coil or fan
area access panels. Filter access door is
provided with thumb screws that can be
removed.
Figure 3: Vertical Air
Handling Indoor Unit.
Optional Auxiliary Electric Heat
Module(s)
LG optional electric heat modules are designed for field installation in the reheat
position. The electric heat module is
provided with heating elements, contactors, relays, high
temperature safety switch, and interconnecting control wiring
harness with a quick connect plug for easy connection to the air
handling unit control board. Auxiliary heat modules are available in
nominal capacities of 3, 5, 8, 10, 15, and 20 kW. Heating elements
are powered from a field provided separate power source. 3kW
through 10 kW modules are powered from a single power wire.
The 15kW and 20 kW modules are powered from two power wires.
Heating module breakers, fuses, and / or disconnects are to be field
provided.
The optional electric heater when used with the provided simple
controller or a 3rd party thermostat (via dry contact connection),
will have automatic heating operation based on the internal logic. If
manual heater operation is intended, an LG Programmable controller
is required.
Microprocessor Control
The indoor unit is provided with an integrated control panel with
built-in dry contact to communicate with the outdoor unit. All unit operation parameters are stored in non-volatile memory resident on the
unit microprocessor. The microprocessor controls space temperature
through using the value provided by temperature sensors within the
indoor unit. A field-supplied communication cable must be installed to
connect the indoor unit(s) to the 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.
MECHANICAL SPECIFICATIONS
Controls
The indoor unit is supplied with an LG wired controller. Communication cable from the outdoor unit to the indoor unit must be a
minimum of 18 AWG, four (4) conductor, shielded or unshielded
(if shielded, must be grounded to chassis at ODU only) and must
comply with applicable local and national codes.
Condensate
The unit is designed for gravity draining of condensate.
Condensate Drain Pan
The condensate drain pan is constructed of HIPS (high impact
polystyrene resin).
Coil
The indoor unit coil is constructed with grooved design copper tubes
with slit coil fins, 3 rows, 18 fins per inch.
•
•
•
•
•
•
•
•
•
•
Product Data
Controls Features
Inverter (Variable speed fan)
Child lock function
Auto changeover
Auto restart operation
Dehumidifying function
Two thermistor control
Group control
External static pressure control
Self-diagnostics function
Wired thermostat included
Vertical Down Flow Configuration
NJ and NK frames come factory configured for vertical up flow.
Down flow configuration requires a conversion kit sold separately
(model numbers: PNDFJ0 for NJ frame and PNDFK0 for NK frame).
The kit contains support brackets for the evaporator coil/drain pan
subassembly, addition screws, and a replace front panel to accommodate the coil and drain connections for down flow configuration.
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
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9
GENERAL DATA
Pairing Table
Table 1: Single Zone Vertical Air Handling Unit Pairing Table
Single Zone Vertical Air Handling Unit Engineering Manual
Outdoor Unit Model
LUU188HV
LUU248HV
Indoor Unit Model
LVN180HV4, LVN240HV4 (NJ frame)
Remote Controller
PQRCVCL0QW (LG supplied, wired)
PQWRHQ0FDB (Optional, wireless)
LUU368HV
LUU428HV
LUU488HV
LVN360HV4, LVN420HV, LVN480HV
(NK frame)
PQRCVCL0QW (LG supplied, wired)
PQWRHQ0FDB (Optional, wireless)
10
| 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 / SPECIFICATIONS
Table 2: Vertical Air Handling Unit General Data.
Type
Vertical Air Handling Unit
System (Model) (Indoor Unit / Outdoor
Unit)
LV180HV4
(LVN180HV4/
LUU188HV)
LV240HV4
(LVN240HV4/
LUU248HV)
LV360HV4
(LVN360HV4/
LUU368HV)
LV420HV
(LVN420HV/
LUU428HV)
LV480HV
(LVN480HV/
LUU488HV)
Cooling Capacity (Min/Rated/Max)
(Btu/h)
8,000 ~ 18,000 ~
24,000
9,000 ~ 24,000 ~
28,000
14,000 ~ 36,000 ~ 17,000 ~ 42,000 ~
44,000
48,000
18,000 ~ 48,000 ~
53,000
Cooling Power Input1 (kW)
0.65 ~ 1.35 ~ 2.70 0.70 ~ 1.92 ~ 3.20 1.25 ~ 2.88 ~ 4.80 1.35 ~ 3.80 ~ 5.30
1.40 ~ 4.80 ~ 6.00
EER
13.33
12.50
12.50
11.05
10.00
SEER
19.0
18.0
18.0
17.0
16.5
Heating Capacity (Min/Rated/Max)
(Btu/h)
9,000 ~ 20,000 ~
23,000
10,000 ~ 27,000 ~ 15,000 ~ 40,000 ~ 18,000 ~ 47,000 ~
30,000
47,000
55,000
19,000 ~ 56,000 ~
60,000
Heating Power Input1 (kW)
0.65 ~ 1.60 ~ 2.10 0.75 ~ 2.26 ~ 2.80 1.35 ~ 3.39 ~ 5.05 1.45 ~ 4.00 ~ 5.65
1.50 ~ 5.10 ~ 6.20
COP
3.66
3.50
3.46
3.44
3.22
HSPF
9.5
10.0
10.0
10.0
9.5
Outdoor 17°F) (WB)/Indoor 70°F (DB)
18,000
22,000
32,000
37,000
40,000
Outdoor 5°F(WB)/Indoor 70°F (DB)
16,000
20,000
30,000
32,000
34,000
Power Input [W] @ Outdoor 5°F (WB)
2,500
3,200
4,400
4,800
5,250
Outdoor -4 °F(WB)/Indoor 70°F (DB)
11,000
15,000
22,000
24,000
26,000
-4 - 64
-4 - 64
Power Supply V, Ø, Hz
Product Data
Maximum Heating Capacity (Btu/h)
208-230 / 1 / 60
Outdoor Unit Operating Range
Cooling (°F DB)
5 - 118
Optional Wind Baffle Cooling (°F DB)
Yes (-4)
Heating (°F WB)
-4 - 64
-4 - 64
-4 - 64
Indoor Unit Operating Range
Cooling (°F WB)
57 - 77
Heating (°F DB)
59 - 81
Indoor Temperature Setting Range
Cooling (°F DB)
65 - 86
Heating (°F WB)
61 - 86
EEV: Electronic Expansion Valve, IDU: Indoor Unit, ODU: Outdoor Unit. This unit comes
with a dry helium charge.
This data is rated 0 ft above sea level, with 24.6 ft of refrigerant line per indoor unit and a 0
ft level difference between outdoor and indoor units.
2 All communication / connection (power) cable from the outdoor unit to the indoor unit
are field supplied and is to be a minimum four-conductor, 18 AWG, stranded, shielded or
unshielded (if shielded, it must be grounded to the chassis of ODU only), and must comply
with applicable local and national codes.
Cooling capacity rating obtained with air entering the indoor coil at 80ºF dry bulb (DB) and
67ºF wet bulb (WB); and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet
bulb (WB).
3 Take appropriate actions at the end of HVAC equipment life to recover, recycle, reclaim or
destroy R410A refrigerant according to applicable regulations (40 CFR Part 82, Subpart F)
under section 608 of CAA.
Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and
60ºF wet bulb (WB); and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet
bulb (WB).
4 Sound pressure levels are tested in an anechoic chamber under ISO Standard 3745 and
are the same in both cooling and heating mode. These values can increase due to ambient
conditions during operation.
1 Power Input is rated at high speed.
5 Piping lengths are equivalent.
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
|
11
GENERAL DATA / SPECIFICATIONS
Table 3: Vertical Air Handling Unit General Data, continued.
Type
Vertical Air Handling Unit
System (Model) (Indoor Unit / Outdoor
Unit)
LV180HV4
(LVN180HV4/
LUU188HV)
LV240HV4
(LVN240HV4/
LUU248HV)
LV360HV4
(LVN360HV4/
LUU368HV)
LV420HV
(LVN420HV/
LUU428HV)
LV480HV
(LVN480HV/
LUU488HV)
Unit Data
Single Zone Vertical Air Handling Unit Engineering Manual
Refrigerant Type3
R410A
Additional Refrigerant Charge (oz./ft.)
0.43
Refrigerant Control
EEV
Indoor Unit Sound Pressure Level (dB(A))
(H/M/L)4
42 / 42 / 41
43 / 42 / 41
45 / 44 / 43
48 / 45 / 44
49 / 48 / 44
Outdoor Unit Sound Pressure Level
(dB(A)) (Cool/Heat)4
48 / 52
48 / 52
52 / 54
52 / 54
52 / 54
Indoor Unit Net / Shipping Weight (lbs.)
129 / 140
129 / 140
165 / 188
165 / 188
165 / 188
Outdoor Unit Net / Shipping Weight (lbs.)
129 / 141
129 / 141
203 / 232
203 / 232
203 / 232
3 x 10
3 x 10
Power Wiring / Communications Cable
(No. x AWG)2
4 x 18
3 x 12
Power Supply (No. x AWG)
3 x 12
3 x 10
Compressor (Type x Qty.)
Twin Rotary x 1
Dehumidification Rate (pts./hr.)
2
2.5
3.4
Propeller x 1
Propeller x 1
Propeller x 2
4.3
5.2
Propeller x 2
Propeller x 2
Fan
Indoor Unit Type x Qty.
Sirocco x 1
Outdoor Unit Type x Qty.
Motor / Drive
Brushless Digitally Controller / Direct
Airflow Rate
Indoor Unit (H / M / L [CFM])
640 / 580 / 480
710 / 640 / 480 1,100 / 1,000 / 900
1,260 / 1,100 / 1,000
1,400 / 1,260 /
1,000
Outdoor Unit (CFM)
2,048
2,048
1,942 x 2
1,942 x 2
1,942 x 2
Factory Set (High) External Static Pressure
(in.wg)
0.3
Piping
Liquid (in.)
3/8
Vapor (in.)
5/8
Indoor Unit Condensate Drain I.D. (in.)
Primary & Secondary: 3/4 FPT
Minimum / Maximum Pipe Length (ft.)5
6.6 / 164
6.6 / 164
6.6 / 246
6.6 / 246
Piping Length (no additional refrigerant, ft.)
24.6
Maximum Elevation Difference (ft.)
98.4
EEV: Electronic Expansion Valve, IDU: Indoor Unit, ODU: Outdoor Unit. This unit comes with a
dry helium charge.
This data is rated 0 ft above sea level, with 24.6 ft of refrigerant line per indoor unit and a 0 ft
level difference between outdoor and indoor units.
Cooling capacity rating obtained with air entering the indoor coil at 80ºF dry bulb (DB) and 67ºF
wet bulb (WB); and outdoor ambient conditions of 95ºF dry bulb (DB) and 75ºF wet bulb (WB).
Heating capacity rating obtained with air entering the indoor unit at 70ºF dry bulb (DB) and 60ºF
wet bulb (WB); and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
1 Power Input is rated at high speed.
2 All communication / connection (power) cable from the outdoor unit to the indoor unit
12
| PRODUCT DATA
6.6 / 246
are field supplied and is to be a minimum four-conductor, 18 AWG, stranded, shielded or
unshielded (if shielded, it must be grounded to the chassis of ODU only), and must comply
with applicable local and national codes.
3 Take appropriate actions at the end of HVAC equipment life to recover, recycle, reclaim or
destroy R410A refrigerant according to applicable regulations (40 CFR Part 82, Subpart F) under
section 608 of CAA.
4 Sound pressure levels are tested in an anechoic chamber under ISO Standard 3745 and
are the same in both cooling and heating mode. These values can increase due to ambient
conditions during operation.
5 Piping lengths are equivalent.
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.
ELECTRICAL DATA
Electrical Data
Table 4: Vertical Air Handling Unit ODU Electrical Data.
Nominal
Tons
Model
Name
1.5
LUU188HV
2.0
LUU248HV
3.0
Unit
Hz
Volts
60
208/230
Power Supply
Compressor Condenser Fan Motor(s)
Motor RLA
(Cooling) Condenser Condenser
Fan QuanFan
tity.
Motor FLA
MCA
MOP
20
30
1
13.5
1
1.6
20
30
1
13.5
1
1.6
LUU368HV
32
40
1
21.0
2
1.6 x 2
3.5
LUU428HV
32
40
1
21.0
2
1.6 x 2
4.0
LUU488HV
32
40
1
21.0
2
1.6 x 2
Voltage tolerance is ±10%.
Maximum allowable voltage unbalance is 2%.
RLA = Rated Load Amps.
Voltage
Range
Compressor
Quantity
Min.: 187
Max.: 253
MCA = Minimum Circuit Ampacity.
Maximum Overcurrent Protection (MOP) is calculated as follows:
(Largest motor FLA x 2.25) + (Sum of other motor FLA) rounded
down to the nearest standard fuse size.
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.
PRODUCT DATA
|
13
FUNCTIONS, CONTROLS, AND OPTIONS
Indoor Unit
Functions, Controls, and Options for LVN180HV4, LVN240HV4, LVN360HV4,
LVN420HV, LVN480HV
Table 5: Indoor Unit—Functions, Controls and Options.
Airflow
Operation
Controllers
Single Zone Vertical Air Handling Unit Engineering Manual
Indoor Unit Type
Air Supply Outlet
Airflow steps (fan/cool/heat)
Washable anti-fungal1
Drain pump
E.S.P Control
Hot Start
Self diagnostics
Soft Dry (dehumidification)
Auto changeover
Auto restart
Child lock
Group control – Requires the use of one Group Control Cable
Kit* (PZCWRCG3) for every additional indoor unit
Sleep mode
Timer (on/off)
Weekly schedule
Two thermistor control
7-Day programmable controller
Simple wired remote controller
Wireless LCD remote control
Dry contact
Dry contact (temperature setting)
Central control (LGAP)
1
Primary washable filters.
2
Requires wired zone controller.
Vertical Air Handling Unit
1
3/3/3
X
X
√
√
√
√
√
√
o
o
√
√
√
o
o
√
o2
√
X
√
√ = Standard feature
o = Unit option
X = Not Available
* = Group Control can limit functions and features
14
| 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.
FUNCTIONS, CONTROLS, AND OPTIONS
Outdoor Unit
Functions, Controls, and Options for LUU188HV, LUU248HV, LUU368HV,
LUU428HV, LUU488HV
Table 6: Outdoor Unit—Functions, Controls and Options.
Outdoor Unit
Central
Controller
Remote
Controller
Integration
Solution
Functions
LUU188HV
LUU248HV
LUU368HV
LUU428HV
LUU488HV
Defrost / Deicing
O
O
O
O
O
High pressure sensor
O
O
O
O
O
Phase protection
X
X
X
X
X
Restart delay (3-minutes)
O
O
O
O
O
Self diagnosis
O
O
O
O
O
Soft start
O
O
O
O
O
Night Quiet Operation
O
O
O
O
O
Mode Lock
O
O
O
O
O
Pump Down (Forced Cooling
Operation)
O
O
O
O
O
Network solution (LGAP)
O
O
O
O
O
AC Smart IV
PACS4B000
PACS4B000
PACS4B000
PACS4B000
PACS4B000
ACP IV
PACP4B000
PACP4B000
PACP4B000
PACP4B000
PACP4B000
PI485
PMNFP14A1
PMNFP14A1
PMNFP14A1
PMNFP14A1
PMNFP14A1
MultiSITE CRC1
PREMTBVC0
PREMTBVC0
PREMTBVC0
PREMTBVC0
PREMTBVC0
MultiSITE CRC1+
PREMTBVC1
PREMTBVC1
PREMTBVC1
PREMTBVC1
PREMTBVC1
MultiSITE
Communications Manager
PBACNBTR0A
PBACNBTR0A
PBACNBTR0A
PBACNBTR0A
PBACNBTR0A
Product Data
Convenience
Reliability
Category
√ = Standard feature
o = Unit option
X = Not Available
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
OUTDOOR UNIT DIMENSIONS
LUU188HV, LUU248HV
Dimensions for LUU188HV, LUU248HV
Single Zone Vertical Air Handling Unit Engineering Manual
Figure 4: LUU188HV, LUU248HV Unit Dimensions.
16
| 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.
OUTDOOR UNIT DIMENSIONS
LUU368HV, LUU428HV, LUU488HV
Dimensions for LUU368HV, LUU428HV, LUU488HV
Figure 5: LUU368HV, LUU428HV, LUU488HV Unit Dimensions.
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.
PRODUCT DATA
|
17
INDOOR UNIT DIMENSIONS
LVN180HV4, LVN240HV4
Dimensions for LVN180HV4, LVN240HV4 (NJ frame)
Figure 6: LVN180HV4, LVN240HV4 Indoor Unit Dimensions.
48-11/16
21-1/4
1-5/8
18
SIDE VIEW
7/8” Wiring
knockouts
1-15/16
17
7/8” Wiring
knockouts
2-1/8
18
2-1/16
1-9/16
1-9/16
12-1/8
1-15/16
TOP VIEW
Liquid pipe
48-11/16
21-1/4
1-11/16” Wiring
knockouts
49-5/16
Vapor pipe
2-9/16
9-15/16
13
FRONT VIEW
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.
1-9/16
Unit: inches
Note: All measurements
have a tolerance of ±1/4 in.
| PRODUCT DATA
4-11/16
Drain connection
for horizontal left
application
BOTTOM VIEW
18
Drain connection
for horizontal right
application
1-1/2
Return Air
opening
14-5/16
Single Zone Vertical Air Handling Unit Engineering Manual
Supply Air
opening
INDOOR UNIT DIMENSIONS
LVN360HV4, LVN420HV, LVN480HV
Dimensions for LVN360HV4, LVN420HV, LVN480HV (NK frame)
Figure 7: LVN360HV4, LVN420HV, LVN480HV Indoor Unit Dimensions.
Supply Air
opening
55-3/16
7/8” Wiring
knockouts
SIDE VIEW
1-15/16
7/8” Wiring
knockouts
2-3/16
24
25
2-1/16
Product Data
1-9/16
1-9/16
1-5/8
25
21-1/4
21-1/4
55-3/16
55-13/16
12-1/8
Liquid pipe
1-11/16” Wiring
knockouts
2-9/16
Vapor pipe
16-15/16
1-9/16
Unit: inches
Note: All measurements
have a tolerance of ±1/4 in.
Drain connection
for upflow application
4-11/16
Drain connection
for horizontal left
application
1-1/2
14-1/4
Return Air
opening
Drain connection
for horizontal right
application
20
FRONT VIEW
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
ACOUSTIC DATA
Indoor Units
Indoor Unit Sound Pressure Measurement
• Measurements are taken 3.3 ft away from the front of the unit.
• Sound pressure levels are measured in dB(A) with a tolerance of ±3.
• Sound pressure levels are tested in an anechoic chamber under ISO
Standard 3745.
Operating Conditions:
• Power source: 220V/60 Hz
• Sound level will vary depending on a range of factors including the
construction (acoustic absorption coefficient) of a particular room in
which the unit was installed.
Figure 8: Sound Pressure Measurement Location.
3.3ft
Single Zone Vertical Air Handling Unit Engineering Manual
Microphone
3.3ft
Indoor Unit Sound Pressure Levels
Table 7: Vertical Air Handling Unit Indoor Unit Sound Pressure Levels.
Model
Sound Pressure Levels dB(A)
High Fan Speed
Medium Fan Speed
Low Fan Speed
LVN180HV4
42
42
41
LVN240HV4
43
42
41
LVN360HV4
45
44
43
LVN420HV
48
45
44
LVN480HV
49
48
44
NJ Frames
NK Frames
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.
ACOUSTIC DATA
Indoor Units
LVN180HV4, LVN240HV4 Sound Pressure Diagrams
Figure 9: LVN180HV4 and LVN240HV4 Sound Pressure Level Diagrams.
LVN180HV4
LVN240HV4
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.
PRODUCT DATA
|
21
ACOUSTIC DATA
Indoor Units
LVN360HV4, LVN420HV Sound Pressure Diagrams
Figure 10: LVN360HV4 and LVN420HV Sound Pressure Level Diagrams.
LVN420HV
Single Zone Vertical Air Handling Unit Engineering Manual
LVN360HV4
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.
INDOOR ACOUSTIC DATA
Indoor Units
LVN480HV Sound Pressure Diagrams
Figure 11: LVN480HV Sound Pressure Level Diagrams.
LVN480HV
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.
PRODUCT DATA
|
23
ACOUSTIC DATA
Indoor Units
Sound Power Levels
Table 8: Vertical Air Handling Unit Sound Power Levels.
Indoor Unit Model
Sound Power Levels dB(A)
High Fan Speed
Single Zone Vertical Air Handling Unit Engineering Manual
NJ Frames
LVN180HV4
59
LVN240HV4
60
NK Frames
LVN360HV4
61
LVN420HV
61
LVN480HV
62
• Data is valid under diffuse field conditions.
• Data is valid under nominal operating conditions.
• Sound power level is measured using rated conditions, and
tested in a reverberation room per ISO 3741 standards.
• Sound level will vary depending on a range of factors such as
construction (acoustic absorption coefficient) of particular area
in which the equipment is installed.
• Reference acoustic intensity: 0dB = 10E-6μW/m2
Sound Power Level Diagrams for LVN180HV4 and LVN240HV4
Figure 12: LVN180HV4 and LVN240HV4 Sound Power Level Diagrams.
LVN180HV4
24
| PRODUCT DATA
LVN240HV4
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.
ACOUSTIC DATA
Indoor Units
Sound Power Level Diagrams for LVN360HV4 and LVN420HV
Figure 13: LVN360HV4 and LVN420HV Sound Power Level Diagrams.
LVN360HV4
LVN420HV
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.
PRODUCT DATA
|
25
ACOUSTIC DATA
Indoor Units
Sound Power Level Diagram for LVN480HV
Figure 14: LVN480HV Sound Power Level Diagram.
Single Zone Vertical Air Handling Unit Engineering Manual
LVN480HV
26
| 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.
ACOUSTIC DATA
Outdoor Units
Outdoor Unit Sound Pressure Level Measurement
Figure 15: Vertical Air Handling Unit Outdoor Unit Sound Pressure Level
Measurement Location.
• Measurements taken with no attenuation and units operating at full
load normal operating condition.
• Sound level will vary depending on a range of factors such as construction (acoustic absorption coefficient) of particular area in which
the equipment is installed.
• Sound power levels are measured in dB(A)±3.
• Tested in anechoic chamber per ISO Standard 3745.
4.9 ft.
D
3.3 ft.
Product Data
Outdoor Unit Sound Pressure Levels
Table 9: Vertical Air Handling Unit Outdoor Unit Sound Pressure Levels (dB[A]).
Outdoor Unit Model
Sound Pressure Level [dB(A)]
Cooling
Heating
LUU188HV
48
52
LUU248HV
48
52
LUU368HV
52
54
LUU428HV
52
54
LUU488HV
52
54
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
|
27
ACOUSTIC DATA
Outdoor Units
Outdoor Unit Sound Pressure Diagrams
Figure 16: LUU188HV , LUU248HV Sound Pressure Level
Diagram.
LUU188HV , LUU248HV
LUU368HV, LUU428HV, LUU488HV
▲ Cooling
Heating
80
▲ Cooling
Heating
NC-65
60
NC-60
NC-55
50
NC-50
NC-45
40
NC-40
NC-35
30
NC-30
NC-25
20
10
Approximate
Hearing
Threshold
63
125
| PRODUCT DATA
70
NC-15
250
500
1000
2000
4000
8000
NC-65
60
NC-60
NC-55
50
NC-50
NC-45
40
NC-40
NC-35
30
NC-30
NC-25
20
Approximate
Hearing
Threshold
NC-20
Octave Band Center Frequency (Hz)
28
Octave Band Sound Pressure Level (0dB = 20μPa)
70
Octave Band Sound Pressure Level (0dB = 20μPa)
Single Zone Vertical Air Handling Unit Engineering Manual
80
Figure 17: LUU368HV, LUU428HV, LUU488HV Sound Pressure Level Diagram.
10
63
NC-20
NC-15
125
250
500
1000
2000
4000
Octave Band Center Frequency (Hz)
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.
8000
ACOUSTIC DATA
Outdoor Units
Outdoor Unit Sound Power Levels
Table 10: Vertical Air Handling Unit ODU Sound Power Levels.
Outdoor Unit Model
Sound Power Levels dB(A)
Max
LUU188HV
67
LUU248HV
68
LUU368HV
66
LUU428HV
67
LUU488HV
68
Sound Power Level Diagrams for LUU188HV, LUU248HV
Figure 18: LUU188HV , LUU248HV Sound Power Level Diagrams.
LUU248HV
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
LUU188HV
PRODUCT DATA
|
29
ACOUSTIC DATA
Outdoor Units
Sound Power Level Diagrams for LUU368HV, LUU428HV, LUU488HV
Figure 19: LUU368HV , LUU428HV, LUU488HV Sound Power Level Diagrams.
LUU428HV
Single Zone Vertical Air Handling Unit Engineering Manual
LUU368HV
30
| 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.
LUU488HV
REFRIGERANT FLOW DIAGRAM
Indoor Units
Refrigerant Flow Diagrams for LVN180HV4, LVN240HV4, LVN360HV4, LVN420HV, LVN480HV
Figure 20: Indoor Unit Refrigerant Flow Diagrams.
Product Data
Table 11: NJ, NK Frame Refrigerant Pipe Connection Port Diameters.
Indoor Unit Model
Liquid (inch)
Vapor (inch)
3/8
5/8
3/8
5/8
NJ Frames
LVN180HV4
LVN240HV4
NK Frames
LVN360HV4
LVN420HV
LVN480HV
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
|
31
REFRIGERANT FLOW DIAGRAM
Outdoor Units
Refrigerant Flow Diagrams for LUU188HV, LUU248HV, LUU368HV, LUU428HV,
LUU488HV
Figure 21: LUU188HV, LUU248HV, LUU368HV, LUU428HV, LUU488HV Refrigerant Flow Diagrams.
CN-TH2
Single Zone Vertical Air Handling Unit Engineering Manual
Refrigerant Flow
Outdoor Ambient Air
Temperature
Thermistor
CN-TH2
Condenser Out
Temperature
Thermistor
Cooling
Heating
Condensing
Temperature
Thermistor
Ø3/8
Flare Connection
M
Strainer
Liquid Side
Piping
Vapor Side
Piping
Strainer
SVC
M
36k/42k model only
Electronic
Expansion Valve
High Pressure
Sensor
SVC
4 way
Valve
Ø5/8
Flare Connection
Discharge
Temperature
Thermistor
Accumulator
CN-TH3
CN-TH3
Fusible
Plug
Suction
Temperature
Thermistor
Inverter
Compressor
Table 12: Vertical Air Handling Unit ODU LUU188~488HV Thermistor Details.
PCB Connector
Description (Based on Cooling Mode)
Suction Temperature Thermistor
Discharge Temperature Thermistor
Condenser Outlet Temperature Thermistor
Outdoor Ambient Air Temperature Thermistor
Condenser Inlet Temperature Thermistor
32
| PRODUCT DATA
CN-TH3
CN-TH3
CN-TH2
CN-TH2
CN-TH4
CN-TH4
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.
INDOOR UNIT WIRING DIAGRAM
LVN180HV4, LVN240HV4, LVN360HV4, LVN420HV, LVN480HV
Figure 22: Indoor Unit Wiring Diagrams.
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.
PRODUCT DATA
|
33
OUTDOOR UNIT WIRING DIAGRAM
LUU188HV, LUU248HV
Single Zone Vertical Air Handling Unit Engineering Manual
Figure 23: Outdoor Unit LUU188HV, LUU248HV Wiring Diagrams.
34
| 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.
OUTDOOR UNIT WIRING DIAGRAM
LUU368HV, LUU428HV, LUU488HV
Figure 24: Outdoor Unit LUU368HV, LUU428HV, LUU488HV Wiring Diagrams.
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.
PRODUCT DATA
|
35
ELECTRICAL WIRING
NJ/NK Frame Wiring Diagram Legend
Table 13: NJ/NK Frame Wiring Diagram Legend.
Single Zone Vertical Air Handling Unit Engineering Manual
Terminal
Purpose
Function
CN-POWER
AC Power supply
AC Power line
CN-MOTOR1
Fan motor output
Motor output of BLDC
CN_OUT
Heater
Connection for heater
CN-D/PUMP
Drain pump output
AC output for drain pump
CN-FLOAT
Float switch input
Float switch sensing
CN-ZONE
Zone controller
Zone controller connection
CN-OPTION
Optional PCB EPROM
Option PCB connection
CN-EXT
External ON / OFF controller
External ON / OFF controller connection
CN-DISPLAY
Display
Display of indoor status
CN-CC
Dry contact
Dry Contact connection
CN-PIPE/OUT (RD)
Discharge pipe sensor
Pipe out thermistor
CN-LEAK (VI)
Refrigerant leak detector
Refrigerant leak detector connection
CN-PIPE/IN (WH)
Suction pipe sensor
Pipe in thermistor
CN-REMO (GN)
Wired remote controller
Wired remote control connection
CN-ROOM (YL)
Room sensor
Room air thermistor
CN-DAMPER
Damper Controller
Damper connection
CN-AIRC
Air Cleaner
Air Cleaner connection
CN-WF
Wifi
Wifi Module connection
36
| 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.
ELECTRICAL WIRING
Dip Switch Settings
Dip Switch Settings for Indoor Unit PCB
Table 14: NJ/NK Frame DIP Switch Settings.
Dip
Switch
Function
Off
On
Description
COMMUNICATION
Off (default)
_
_
SW2
CYCLE
Off (default)
_
_
SW3
GROUP CONTROL
Master
Slave
Group control setting using 7-Day Programmable Controller; selects Master/
Slave on each indoor unit.
SW4
DRY CONTACT
MODE
Variable
Auto
Sets operation mode for optional Dry Contact accessory.
1. Variable: Auto or Manual Mode can be set through 7-Day Programmable
Controller or Wireless Remote Controller (factory default setting is Auto if
there is no setting).
2. Auto: For Dry Contact, it is always Auto mode.
SW5
CONTINUOUS FAN
Off
On
Selects continuous fan for ducted indoor units.
1. On: Indoor unit fan will always operate at a set fan speed, except when the
system is off, or the outdoor unit is in defrost mode (when the outdoor unit is
in defrost mode, the fan will operate at super low fan speed).
2. Off: Indoor unit fan speed can be changed by on / off.
SW6
HEATER INTERLOCK
Off
On
Selects heater interlock function for Vertical Air Handling units.
1. On: Automatic (heater will automatically operate during heating mode).
2. Off: Manual (heater needs to be manually turned on during heating mode).
SW7
Off
SW8
Off
To operate the indoor unit without Internal Electric Heater, Dip switch 1, 2, 6, 8 must be set OFF.
To operate the indoor unit with Internal Electric heater, Dip switch 6 must be set ON.
• SW6 ON: Automatic Heater operation: Heater operates automatically.
• SW6 OFF: Manual Heater operation: Owner’s involvement is required for on/off operation.
If you operate the indoor unit with Internal Electric heater with Dip switch 5, note the following:
• SW5 ON: Fan operates continuously. During defrosting or oil return operation, uninterrupted heating can be attained, as a result of continuous heater and fan operation.
• SW5 OFF: Fan discontinuous operation. There would be reduction in heating capacity while defrosting or oil return operation.
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
|
37
Product Data
SW1
ELECTRICAL CONNECTIONS
Single Zone Vertical Air Handling Unit Engineering Manual
General Power Wiring / Communications Cable Guidelines
•
•
•
•
•
•
•
•
Follow manufacturer’s circuit diagrams displayed on the inside of the control box cover.
Have a separate power supply for the indoor units.
Provide a circuit breaker switch between the power source and the indoor unit.
Confirm power source specifications.
Properly ground the outdoor unit and the indoor unit per NEC and local codes.
Connect the wiring firmly so that the wires cannot be easily pulled out.
Confirm that the electrical capacity is sufficient.
Power supply to the outdoor unit must be selected based on NEC and local codes. Maximum allowable voltage fluctuation ±10% or nameplate rated value.
• It is recommended that a circuit breaker is installed, especially if conditions could become wet or moist.
• Include a disconnect in the power wiring system. Add an air gap contact separation of at least 1/8 inch in each active (phase) conductor.
• Any openings where the field wiring enters the cabinet must be completely sealed.
Do not install power wiring to the outdoor unit and the communication / connection (power) cable to the indoor unit in the same conduit.
Use separate conduits.
Power Wiring / Communications Cable Specifications
• Power wiring to the outdoor unit must be solid or stranded, and must comply with the applicable local and national electric codes.
• Communication cable from the outdoor unit to the indoor unit must be a minimum of 18 AWG, four (4) conductor, shielded or unshielded (if
shielded, must be grounded to chassis at ODU only) and must comply with applicable local and national codes.
• Communication cable from indoor unit to remote controller(s) is to be 22 AWG, 3-conductor, twisted, stranded, unshielded. Wiring must
comply with all applicable local and national codes.
• Terminal screws may become loose during transport. Properly tighten the terminal connections during installation or risk electric shock,
physical injury, or death.
• Loose wiring may cause unit to malfunction, overheat, and catch fire, resulting in severe injury or death.
• Terminal screws may loosen during transport. Properly tighten the terminal connections during installation or risk equipment malfunction or
property damage.
• Loose wiring may cause unit malfunction, the wires to burnout or the terminal to overheat and catch fire. There is a risk of equipment malfunction or property damage.
A voltage drop may cause the following problems:
• Magnetic switch vibration, fuse breaks, or disturbance to the normal function of an overload protection device.
• Compressor will not receive the proper starting current.
38
| 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.
ELECTRICAL CONNECTIONS
Figure 25: LV180HV4 and LV240HV4 General Power/Communications System Schematic.
Power Supply
Circuit Breaker
Outdoor Unit
Product Data
Ground Wiring
Indoor Unit
Figure 26: LV360HV4, LV480HV, and LV488HV General Power/Communications System Schematic.
Power Supply
Circuit Breaker
Ground Wiring
Outdoor Unit
Indoor Unit
• Secure the separate wires in the control box panel using zip ties.
• Secure wiring with accessory clamps so that it does not touch the piping.
• Use a conduit for the communications cable / power wiring from the outdoor unit to the indoor units.
• Make sure the communications cable / power wiring from the outdoor units to the indoor units, and the power wiring to the outdoor unit are
separate, otherwise, the outdoor unit operation may be affected by electrical noise and will malfunction or fail.
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
|
39
ELECTRICAL CONNECTIONS
Connecting the Power Wiring and Communications Cable
Figure 27: Connecting the Power Wiring and Communications Cable.
2. Knockout the access holes for the wiring. Insert the power wiring/
communications cable from the outdoor unit through the conduits,
pass the conduits through the designated access holes, and
then insert the conduits into the control box. To prevent electromagnetic interference and product malfunction, leave a space
between the power wiring and communications cable outside of
the indoor unit.
Top Front
Panel
Control
Box Cover
3. Connect the power wiring and communications cables to the
appropriate terminals on the indoor unit control board. Verify
that the color and terminal numbers from the outdoor unit wiring
match the color and terminal numbers on the indoor unit.
4. Fill in any gaps around the conduit access holes with sealant to
prevent foreign particles from entering the indoor unit.
Access Holes
for Wiring
Nut
Conduit
Mounting Plate
1/2-inch Conduit
Connection Cable
Communications Cable
Figure 28: Indoor Unit to Outdoor Unit Power Wiring / Communications Cable
Connections.
Indoor Unit Terminal Block
3
| PRODUCT DATA
Outdoor Unit Terminal Block
3
GND
GRN /
YLW
RD
40
GND
BL
1(L1 ) 2 (L2)
BR
Single Zone Vertical Air Handling Unit Engineering Manual
1. To access the terminal block, first unscrew the top front panel,
and then unscrew the cover from the control box.
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.
ELECTRICAL CONNECTIONS
Controller Options
Vertical Air Handling indoor units include LG-supplied wired controller (PQRCVCL0QW), but other
optional LG-supplied wired controllers are available. The wireless handheld controller (Model No.
PQWRHQ0FDB) is also an optional accessory with use of the wired controller.
•
•
•
•
•
Figure 30: PQRCVCL0QW Wired
Controller.
Operation Display
Panel
Operation Display Panel: Displays operation conditions.
Temperature Control Button: Sets desired temperature.
Fan Speed Button: Sets desired fan speed.
On / Off Button: Turns system operation on and off.
Mode Selection Check Button: Selects the operation mode: Cooling, Heating, Auto, Dry
(Dehumidification), or Fan.
Temperature Control
Button
Fan Speed Button
On/Off Button
FA N
SPEED
TEMP
OPER
MODE
Mode Selection
Check Button
Each function will display on the LED for about three (3) seconds when the power is first cycled on.
Wired Controller Connections
2. Field-supplied controller cable that connects to the indoor unit terminal block (must be at least UL2547 or UL1007, and at least FT-6 rated
if local electric and building codes require plenum cable usage). Communication cable from indoor unit to remote controller(s) is to be 22
AWG, 3-conductor, twisted, stranded, unshielded. Wiring must comply with all applicable local and national codes.
Figure 29: PZCWRC1 LG Wired Remote Extension Cable.
Verify the connectors are properly inserted.
C/BOX Cable (Plug type)
FAN
SPEED
TEMP
OPER
MODE
Extension cable
To Indoor Unit
CN-REMO
Terminal
Figure 31: Wired Controller Connection on the Indoor Unit Terminal Block.
CN-REMO
Indoor Unit Terminal Block
1(L1 ) 2 (L2)
3
GND
indoor unit terminal blocks.
3 or S
GND
GRN /
YLW
RD
BK
12V
Power Ground
BL
RD
BR
YL
Comm.
OutdoorWhen
Unit using
Terminal
Block or controller cable, make sure to connect the
field-supplied
Branch Distribution
Unit Terminal
Block wire), red to red (12V power wire), and
yellow to yellow
(communications
(Multi black
F MAX
Systems
Only)
to black
(ground
wire) terminals from the remote controller to the
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
|
41
Product Data
Controllers can connect to the indoor unit in one of two different ways.
1. LG Wired Remote Extension Cable with Molex plug (PZCWRC1; sold separately) that connects to the CN-REMO terminal on the indoor
unit PCB.
ELECTRICAL CONNECTIONS
Wired Controller Placement
Figure 32: Proper Location for the Wired Controller.
Single Zone Vertical Air Handling Unit Engineering Manual
Wired controllers include a sensor to detect room temperature. To maintain
comfort levels in the conditioned space, the wired controller must be installed in
a location away from direct sunlight, high humidity, and where it could be directly
exposed to cold air. Controller must be installed four (4) to five (5) feet above the
floor where its LED display can be read easily, in an area with good air circulation, and where it can detect an average room temperature.
•
•
•
•
•
Do not install the wired controller near or in:
Drafts or dead spots behind doors and in corners
Hot or cold air from ducts
Radiant heat from the sun or appliances
Concealed pipes and chimneys
An area where temperatures are uncontrolled, such as an outside wall
Hanging the Wired Controller
1. The controller wiring / cable can be installed in one of three directions: top,
back, or on the right side. If top or right side installation is desired, remove
cable guide grooves on the controller, and then position wiring / cable on
applicable side.
NO
ot e
Cont
TEMP
Remote Controlle r
NO
4 to 5 feet
above the floor
TEMP
Rem
roller
NO
Figure 33: Removing the Cable Guide Grooves.
Top
Top
Back
2. Choose and mark the area of installation, and then screw the wall plate into
place (using the provided parts). Install the controller wall plate to fit the electrical box if one is present. Ensure that no gaps exist between the wall plate
and the wall itself.
3. Arrange wiring / cables so as not to interfere with the controller circuitry.
Position the wired controller on the wall plate. Snap into place by pressing the
bottom part of the wired controller onto the wall plate. Make sure that no gaps
exist between the wired controller and the wall plate on all sides.
YES
TEMP
Remote Controlle r
Figure 34: Attaching the
Wall Plate.
4. To remove wired controller from the wall plate, insert a screwdriver into the
two holes at the bottom. Twist screwdriver to release controller.
Do not
damage the controller components when removing.
Right
Side
Right
Side
Figure 35: Installing /
Removing the Controller.
Installing the Controller
Wall
Removing the Controller
Wall
Assigning the Thermistor for Temperature Detection
Wall
Wall
Each indoor unit includes a return air thermistor assigned to sense the temperature. If a wired controller is installed, there is a choice of
sensing temperature with either the indoor unit return air thermistor or the thermistor in the wired controller. It is also an option to set both
thermistors to sense temperature so that indoor unit bases its operation on the first thermistor to reach the designated temperature differential. For applicable indoor units, an optional Remote Temperature Sensor can be used in lieu of the return air thermistor—either alone or in
conjunction with a wired controller thermistor as previously described.
42
| 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.
EXTERNAL STATIC PRESSURE AND AIRFLOW RANGES
External Static Pressure (ESP) Setting Values (NJ frame)
Figure 36: ESP Setting Values (NJ frame).
Product Data
External Static Pressure Setting Values (NK frame)
Figure 37: ESP Setting Values (NK frame).
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
|
43
EXTERNAL STATIC PRESSURE AND AIRFLOW RANGES
NJ, NK Frames
IDU External Static Pressure Setting Values
LVN180HV4 and LVN240HV4 (NJ Frame)
Table 15: Vertical Air Handling Unit NJ Frame Indoor Unit External Static Pressure and Air Flow Tables.
Single Zone Vertical Air Handling Unit Engineering Manual
Static Pressure (in. wg)
Model No. / Nominal Capacity
of System (Btu/h)
0.1
0.2
0.3
Airflow Rate / CFM
LVN180HV4/
18,000
LVN240HV4/
24,000
0.4
0.5
Setting Value (in. WG)
0.6
0.7
1
High
640
63
67
75
81
88
91
95
Mid
580
57
63
69
77
84
89
93
Low
480
51
59
65
73
80
87
91
High
710
67
71
79
85
92
94
97
Mid
640
63
67
75
81
88
91
95
Low
480
51
59
65
73
80
87
91
IDU External Static Pressure Setting Values
LVN360HV4, LVN420HV, LVN480HV (NK Frame)
Table 16: Vertical Air Handling Unit NK Frame Indoor Unit External Static Pressure and Air Flow Tables.
Static Pressure (in. wg)
Model No. / Nominal Capacity
of System (Btu/h)
LVN360HV4/
36,000
LVN420HV/
42,000
LVN480HV/
48,000
0.1
0.2
0.3
0.4
Airflow Rate / CFM
0.5
0.6
Setting Value (in. WG)
0.7
0.8
0.9
1
112
_
1
High
1,100
65
71
79
86
92
96
102
106
Mid
1,000
61
67
75
82
88
94
100
104
110
116*
Low
900
57
63
71
78
84
92
98
102
108
114
High
1,260
70
77
83
90
96
98
104
108
116*
_
Mid
1,100
65
71
79
86
92
96
102
106
114
_
Low
1,000
61
67
75
82
88
94
100
104
112
116*
High
1,400
77
82
87
94
100
102
106
110
116*
_
Mid
1,260
70
77
83
90
96
98
104
108
114
116*
Low
1,000
61
67
75
82
88
94
100
104
112
116*
1 Unless otherwise noted, vertical air handling units are UL listed up to 0.5 in. wg total
static pressure, including coil, case, duct work pressure drop, air filter, and largest kW size
heater. Internal static pressure includes coil and case only.
Factory default status is 0.3 in wg.
Factory default is high static pressure.
* Airflow rate (CFM) decreases by 3% per 0.1 in. wg.
• If the ESP is set incorrectly, the air conditioning may malfunction.
• To get the desired air flow and external static pressure combination, use the setting value from the table. Using a setting value other than the values
listed in the table will not provide the desired combination.
44
| 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.
EXTERNAL STATIC PRESSURE AND AIRFLOW RANGES
Air Filter Static Pressure Drop Factors
Table 17: Air Filter Static Pressure Drop Factors.
Capacity (kBtu/h [tons])
Flow Rate (CFM)
Static Pressure Drop (in wg)
18 (1.5)
24 (2.0)
High (640)
-0.04
Middle(580)
-0.04
Low (480)
-0.04
High (710)
-0.04
Middle(640)
-0.04
Low (480)
-0.04
High (1100)
-0.08
Middle(1000)
-0.08
Low (900)
-0.08
High (1260)
-0.09
Middle(1100)
-0.08
36 (3.0)
42 (3.5)
-0.08
-0.09
Middle(1260)
-0.09
Low (1000)
-0.08
Product Data
Low (1000)
High (1400)
48 (4.0)
If the air filter has been installed, the ESP value has to be set.
For every increase in static pressure by 0.01 in. wg, the ESP value must be increased
by 1.
Minimum Airflow by Heater Capacity
Table 18: Minimum Airflow by Heater Capacity.
Capacity (kBtu/h [tons])
Heater Capacity (kW)
3, 5
8, 10
15
20
18 (1.5)
480
480
Not available
Not available
24 (2.0)
480
480
Not available
Not available
36 (3.0)
900
900
900
900
42 (3.5)
1000
1000
1000
1000
48 (4.0)
1000
1000
1000
1000
Airflow rates in the table above are listed in CFM.
Do not operate with less than the minimum airflow. If an airflow is used below the minimum, there is a risk of fire, which may
lead to physical injury or death.
Do not operate with less than the minimum airflow. If an airflow is used
below the minimum, there is a risk of damage to the product.
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
|
45
EXTERNAL STATIC PRESSURE AND AIRFLOW RANGES
Electric Heater Static Pressure Drop Factors
Single Zone Vertical Air Handling Unit Engineering Manual
Table 19: Electric Heater Static Pressure Drop Factors.
Heater Capacity (kW)
Static Pressure Drop (in. wg)
0
0
3, 5
-0.01
8, 10
-0.02
15
-0.03
20
-0.04
in wg = inch water gauge
If the electric heater has been installed, then the ESP value has to be set.
For every increase in static pressure by 0.01 in wg, the ESP value must be increased by 1.
If the ESP setting value is inappropriate, the provided safety device will turn the heater off
according to the airflow.
Down Flow (optional) Static Pressure Drop Factors
Table 20: Down Flow Static Pressure Drop Factors.
Capacity (kBtu/h [tons])
Flow Rate (CFM)
Static Pressure Drop (in wg)
18 (1.5)
High (640)
-0.04
Middle(580)
-0.04
24 (2.0)
36 (3.0)
42 (3.5)
48 (4.0)
Low (480)
-0.04
High (710)
-0.04
Middle(640)
-0.04
Low (480)
-0.04
High (1100)
-0.09
Middle(1000)
-0.09
Low (900)
-0.09
High (1260)
-0.09
Middle(1100)
-0.09
Low (1000)
-0.09
High (1400)
-0.09
Middle(1260)
-0.09
Low (1000)
-0.09
If the air filter has been installed, the ESP value has to be set.
For every increase in static pressure by 0.01 in. wc, the ESP value must be increased by
1.
46
| 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.
EXTERNAL STATIC PRESSURE AND AIRFLOW RANGES
Down Flow - Air Filter (optional) Static Pressure Drop Factors
Table 21: Down Flow - Air Filter Static Pressure Drop Factors.
Capacity (kBtu/h [tons])
Flow Rate (CFM)
Static Pressure Drop (in wg)
18 (1.5)
High (640)
-0.04
Middle(580)
-0.04
24 (2.0)
36 (3.0)
42 (3.5)
-0.04
-0.04
Middle(640)
-0.04
Low (480)
-0.04
High (1100)
-0.06
Middle(1000)
-0.06
Low (900)
-0.06
High (1260)
-0.07
Middle(1100)
-0.06
Low (1000)
-0.06
High (1400)
-0.07
Middle(1260)
-0.07
Low (1000)
-0.06
Product Data
48 (4.0)
Low (480)
High (710)
If the air filter has been installed, the ESP value has to be set.
For every increase in static pressure by 0.01 in. wc, the ESP value must be increased by
1.
Down Flow - Internal Electric Heater Static Pressure Drop Factors
Table 22: Internal Electric Heater Static Pressure Drop Factors.
Heater Capacity (kW)
Static Pressure Drop (in. wg)
0
0
3, 5
-0.01
8, 10
-0.01
15
-0.01
20
-0.01
in. wc = inch water column, inAq
If the internal electric heater has been installed, then the ESP value has to be set.
For every increase in static pressure by 0.01 in WC, the ESP value must be increased by
1.
If the ESP setting value is inappropriate, the provided safety device will turn the heater off
according to the airflow.
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
|
47
ACCESSORIES
Electric Heater
Single Zone Vertical Air Handling Unit Engineering Manual
Table 23: Electric Heater Capacities for Vertical Air Handling Units.
Accessory
Model Number
3kW Electric Heater
ANEH033B1
5kW Electric Heater
ANEH053B1
8kW Electric Heater
ANEH083B2
10kW Electric Heater
ANEH103B2
15kW Electric Heater
ANEH153B2
20kW Electric Heater
ANEH203B2
Figure 38: Electric Heater.
Example: 5kW Capacity Heater
Bracket
Bi metal
Heater Coil
Terminal Block
Relay
Heater Cable
Image shown above may vary depending on model capacity.
48
| PRODUCT DATA
Due to our policy of continuous product innovation, some specifications may change without notification.
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ACCESSORIES
Electric Heater, continued
Table 24: Electric Heater Capacities.
Indoor Unit Model No. / Capacity (MBh)
Model Number / Heater Capacity
ANEH033B1
(3kW)
ANEH053B1
(5kW)
ANEH083B2
(8kW)
ANEH103B2
(10kW)
ANEH153B2
(15kW)
ANEH203B2
(20kW)
LVN180HV4 (18)
√
√
√
√
X
X
LVN240HV4 (24)
√
√
√
√
X
X
LVN360HV4 (36)
√
√
√
√
√
√
LVN420HV (42)
√
√
√
√
√
√
LVN480HV (48)
√
√
√
√
√
√
√ = Standard feature
X = Not Available
Product Data
Drain Pan Heater
Figure 39: Drain Pan Heater.
Table 25: Drain Pan Heater Capacities.
IDU
ODU
Heater kW
Accessory Model
Note
LVN180HV4
LUU188HV
120 W
PQSH1200
Optional
LVN240HV4
LUU248HV
120 W
PQSH1200
Optional
LVN360HV4
LUU368HV
120 W
PQSH1200
Optional
LVN420HV
LUU428HV
120 W
PQSH1200
Optional
LVN480HV
LUU488HV
120 W
PQSH1200
Optional
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
|
49
ACCESSORIES
Single Zone Vertical Air Handling Unit Engineering Manual
LG Monitoring View (LGMV) Diagnostic Software and Cable
LGMV software allows the service technician or commissioning agent to connect a computer USB port
to the outdoor unit main printed circuit board (PCB) using an accessory cable without the need for a
separate interface device. The main screen for LGMV allows user to view the following real time data on
one screen:
• Actual inverter compressor speed
temperature
• Software
version
• Target inverter compressor speed
• Front outdoor coil pipe temperature
•
Installer
• Actual outdoor fan speed
• Back outdoor coil pipe temperature
name
• Target outdoor unit fan speed
• Liquid line pipe temperature
•
Model no.
• Actual superheat
• Subcooler inlet temperature
of outdoor units
• Target superheat
• Subcooler outlet temperature
• Site name
• Actual subcooler circuit superheat
• Average indoor unit (IDU) pipe temperature
• Total number of connected indoor units
• Target subcooler circuit superheat
• Inverter compressor operation indicator
• Communication indicator lights
light
• Main EEV position
• Indoor unit capacity
• Four-way reversing valve operation
• Subcooling EEV position
• Indoor unit operating mode
indicator
light
• Inverter compressor current transducer
• Indoor unit fan speed
•
Pressure
graph
showing
actual
low
presvalue
sure
and
actual
high
pressure
levels
• Indoor unit EEV position
• Outdoor air temperature
•
Error
code
display
• Indoor unit room temperature
• Actual high pressure/saturation temperature
•
Operating
mode
indicator
• Indoor unit inlet pipe temperature
• Actual low pressure/saturation temperature
•
Target
high
pressure
• Indoor unit outlet pipe temperature
• Suction temperature
•
Target
low
pressure
• Indoor unit error code
• Inverter compressor discharge temperature
•
PCB
(printed
circuit
board)
version
• Constant speed compressor discharge
Figure 40: Sample Cycleview.
Additional screens can be accessed by tabs on the main screen:
1. Cycleview: Graphic of internal components including:
• Compressors showing actual speeds
• Temperature and pressure sensors
• EEVs
• Four-way reversing valve
• Indoor Units
• Outdoor fans showing status and speeds
• Liquid injection valves
2. Graph: Full screen graph of actual high and low pressures and high and low pressure limits. A
sliding bar enables user to go back in time and view data.
3. Control IDU: Enables user to turn on all IDU’s default setpoints of 86°F in heat mode or 64°F in
cool mode.
4. Setting: Converts metric values to imperial values.
5. Making Data: Recording of real time data to a separate file created to be stored on the user’s computer.
6. Loading Data: Recorded data from a saved “.CSV” file can be loaded to create an LGMV session.
7. Electrical Data: The lower half of main screen is changed to show the following:
• Inverter compressor
• Constant compressor
- Amps
- Current transducer value
- Volts
- Phase
- Power Hz
- Inverter control board fan Hz
In lieu of connecting to the outdoor unit, user has the option to connect to the indoor unit with the use of a USB to RS-485 connector kit.
When connected through the indoor unit, user will not be able to record data.
This software can be used to both commission new systems and troubleshoot existing systems. LGMV data can be recorded to a “.CSV” file
and emailed to an LG representative to assist with diagnostic evaluations.
Recommended Minimum PC Configuration:
• CPU: Pentium® IV 1.6 GHz
• Operating System: Windows® NT/2000/XP/Vista
• Main Memory: 256 MB
• Hard Disk: 600 MB when operating
• Web Browser: Internet Explorer® 5.0
LGMV is available in different formats, including Mobile LGMV, which is a app for use on wireless devices. Contact your LG
Sales Representative for more information.
50
| 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.
VERTICAL AIR HANDLING
UNIT PERFORMANCE
DATA
“Cooling Capacity Data” on page 52
“Heating Capacity Data” on page 57
“Maximum Heating Capacity Data” on page 62
“Equipment Selection Procedure” on page 67
PERFORMANCE DATA
Cooling Capacity Tables
Cooling Capacity Table for LV180HV4 (LUU188HV + LVN180HV4)
Table 26: Cooling Capacity Table for LUU188HV + LVN180HV4.
TC
SHC
PI
TC
SHC
PI
-4
17.70
12.85
0.80
18.80
13.58
0.83
0
17.69
12.93
0.81
18.79
13.66
5
17.67
13.04
0.82
18.77
13.77
10
17.66
13.14
0.83
18.76
15
17.65
13.25
0.84
20
17.63
13.35
0.86
25
17.62
13.45
30
17.60
35
17.59
40
Single Zone Vertical Air Handling Unit Engineering Manual
Outdoor
Air
Temp.
(°F DB)
Indoor Air Temp. °F DB / °F WB
68 / 57
72 / 61
77 / 64
TC
SHC
86 / 72
TC
SHC
PI
19.89 13.14
0.86
20.69
13.42
0.87
0.84
19.88 13.22
0.87
20.68
13.50
0.85
19.87 13.34
0.88
20.66
13.62
13.88
0.86
19.85 13.44
0.89
20.64
18.74
13.99
0.88
19.84 13.55
0.91
18.73
14.10
0.89
19.82 13.65
0.92
0.87
18.71
14.21
0.90
19.81 13.76
13.56
0.88
18.70
14.32
0.91
13.66
0.89
18.68
14.43
0.93
17.58
13.76
0.91
18.67
14.54
45
17.56
13.87
0.92
18.66
50
17.55
13.97
0.93
18.64
55
17.54
14.07
0.94
60
17.52
14.17
0.95
65
17.51
14.27
70
17.50
75
17.08
80
TC
SHC
PI
22.09 13.53
0.88
23.19
13.79
0.90
0.88
22.08 13.61
0.89
23.18
13.87
0.91
0.89
22.06 13.73
0.91
23.16
13.99
0.93
13.73
0.90
22.05 13.84
0.92
23.14
14.10
0.94
20.63
13.83
0.92
22.03 13.95
0.94
23.12
14.22
0.95
20.61
13.94
0.93
22.01 14.06
0.95
23.11
14.33
0.97
0.93
20.60
14.05
0.94
22.00 14.17
0.96
23.09
14.44
0.98
19.79 13.87
0.95
20.58
14.16
0.96
21.98 14.28
0.98
23.07
14.55
1.00
19.78 13.97
0.96
20.57
14.27
0.97
21.96 14.39
0.99
23.05
14.66
1.01
0.94
19.76 14.08
0.97
20.55
14.37
0.98
21.94 14.49
1.00
23.04
14.77
1.02
14.65
0.95
19.75 14.18
0.99
20.53
14.48
1.00
21.93 14.60
1.02
23.02
14.88
1.04
14.75
0.96
19.73 14.29
1.00
20.52
14.59
1.01
21.91 14.71
1.03
23.00
14.99
1.05
18.63
14.86
0.98
19.72 14.39
1.01
20.50
14.69
1.02
21.89 14.82
1.04
22.98
15.10
1.06
18.61
14.97
0.99
19.70 14.50
1.03
20.49
14.80
1.04
21.88 14.93
1.06
22.97
15.21
1.08
0.97
18.60
15.08
1.00
19.69 14.60
1.04
20.47
14.91
1.05
21.86 15.03
1.07
22.95
15.32
1.09
14.38
0.98
18.58
15.19
1.01
19.67 14.70
1.05
20.46
15.01
1.06
21.84 15.14
1.08
22.93
15.43
1.10
14.14
1.03
18.16
14.96
1.07
19.24 14.50
1.11
20.03
14.81
1.12
21.41 14.96
1.14
22.50
15.25
1.16
16.66
13.90
1.08
17.74
14.72
1.12
18.82 14.29
1.16
19.60
14.61
1.18
20.98 14.77
1.20
22.06
15.07
1.22
85
16.24
13.64
1.14
17.32
14.47
1.18
18.40 14.06
1.22
19.17
14.39
1.24
20.55 14.57
1.26
21.63
14.88
1.28
90
15.82
13.39
1.19
16.90
14.22
1.23
17.97 13.84
1.28
18.75
14.17
1.29
20.12 14.36
1.32
21.20
14.69
1.34
95
15.37
13.25
1.24
16.44
14.09
1.29
17.51 13.73
1.33
18.00
13.86
1.35
19.65 14.29
1.38
20.72
14.62
1.40
100
14.99
12.89
1.30
16.06
13.74
1.34
17.13 13.40
1.39
17.77
13.65
1.41
19.28 13.98
1.43
20.35
14.32
1.46
105
14.62
12.54
1.35
15.69
13.38
1.40
16.76 13.08
1.45
17.53
13.43
1.46
18.90 13.67
1.49
19.97
14.02
1.52
110
14.24
12.11
1.40
15.32
12.95
1.45
16.39 12.67
1.50
17.16
13.03
1.52
18.53 13.29
1.55
19.60
13.64
1.58
115
13.87
11.75
1.45
14.94
12.58
1.51
16.01 12.34
1.56
16.79
12.70
1.58
18.15 12.97
1.61
19.22
13.33
1.64
118
13.65
11.66
1.49
14.72
12.51
1.54
15.79 12.27
1.60
16.56
12.64
1.61
17.93 12.92
1.64
19.00
13.29
1.68
122
13.57
11.63
1.53
14.64
12.48
1.58
15.71 12.25
1.64
16.49
12.62
1.66
17.85 12.91
1.69
18.92
13.28
1.72
| PRODUCT DATA
TC
SHC
90 / 75
PI
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC: Total Capacity
(kBtu/h)
SHC: Sensible Capacity (kBtu/h) PI: Power Input (kW) (includes compressor, indoor fan
motor and outdoor fan motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Cooling operating range with the Low Ambient Baffle Kit (sold separately) is -4°F to
+122°F.
3. Grey shading indicates reference data. When operating the unit at this temperature,
these values can be different by discontinuous operation.
4. Direct interpolation is permissible.
Do not extrapolate.
52
80 / 67
PI
Nominal capacity as rated: 0 ft. above sea level with 25 ft. of refrigerant piping.
0 ft. level difference between outdoor and indoor units.
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).
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 Tables
Cooling Capacity Table for LV240HV4 (LUU248HV + LVN240HV4)
Table 27: Cooling Capacity Table for LUU248HV + LVN240HV4.
Outdoor Air
Temp.
(°F DB)
Indoor Air Temp. °F DB / °F WB
TC
SHC
PI
TC
SHC
PI
TC
SHC
PI
TC
SHC
PI
TC
SHC
PI
TC
SHC
PI
-4
23.60
17.36
1.14
25.06
18.34
1.18
26.53
17.75
1.22
27.58
18.13
1.23
29.46
18.28
1.26
30.92
18.63
1.28
0
23.58
17.46
1.15
25.05
18.44
1.19
26.51
17.86
1.23
27.57
18.23
1.25
29.44
18.39
1.27
30.91
18.74
1.30
5
23.56
17.61
1.17
25.03
18.60
1.21
26.49
18.01
1.25
27.55
18.39
1.27
29.42
18.55
1.29
30.88
18.90
1.32
10
23.55
17.75
1.18
25.01
18.75
1.23
26.47
18.16
1.27
27.53
18.54
1.29
29.39
18.70
1.31
30.86
19.05
1.34
15
23.53
17.89
1.20
24.99
18.90
1.25
26.45
18.30
1.29
27.50
18.69
1.31
29.37
18.84
1.33
30.83
19.20
1.36
20
23.51
18.03
1.22
24.97
19.05
1.26
26.43
18.44
1.31
27.48
18.83
1.32
29.35
18.99
1.35
30.81
19.35
1.38
25
23.49
18.17
1.24
24.95
19.20
1.28
26.41
18.59
1.33
27.46
18.98
1.34
29.33
19.14
1.37
30.79
19.50
1.40
30
23.47
18.31
1.25
24.93
19.34
1.30
26.39
18.73
1.35
27.44
19.12
1.36
29.30
19.28
1.39
30.76
19.65
1.42
35
23.46
18.45
1.27
24.91
19.49
1.32
26.37
18.87
1.37
27.42
19.27
1.38
29.28
19.43
1.41
30.74
19.80
1.43
40
23.44
18.59
1.29
24.89
19.64
1.33
26.35
19.01
1.38
27.40
19.41
1.40
29.26
19.58
1.43
30.72
19.95
1.45
45
23.42
18.73
1.31
24.87
19.78
1.35
26.33
19.15
1.40
27.38
19.56
1.42
29.24
19.72
1.44
30.69
20.10
1.47
50
23.40
18.87
1.32
24.85
19.93
1.37
26.31
19.30
1.42
27.36
19.70
1.44
29.21
19.87
1.46
30.67
20.24
1.49
55
23.38
19.00
1.34
24.84
20.07
1.39
26.29
19.44
1.44
27.34
19.85
1.46
29.19
20.01
1.48
30.64
20.39
1.51
60
23.37
19.14
1.36
24.82
20.22
1.41
26.27
19.58
1.46
27.32
19.99
1.47
29.17
20.16
1.50
30.62
20.54
1.53
65
23.35
19.28
1.37
24.80
20.37
1.42
26.25
19.72
1.48
27.29
20.13
1.49
29.15
20.30
1.52
30.60
20.69
1.55
70
23.33
19.42
1.39
24.78
20.51
1.44
26.23
19.86
1.49
27.27
20.28
1.51
29.13
20.45
1.54
30.57
20.84
1.57
75
22.77
19.10
1.47
24.21
20.20
1.52
25.66
19.58
1.58
26.70
20.01
1.59
28.55
20.20
1.62
29.99
20.60
1.66
80
22.21
18.77
1.54
23.65
19.88
1.60
25.09
19.30
1.66
26.13
19.73
1.68
27.97
19.95
1.71
29.42
20.36
1.74
85
21.65
18.43
1.62
23.09
19.55
1.68
24.53
18.99
1.74
25.57
19.44
1.76
27.40
19.68
1.79
28.84
20.10
1.83
90
21.09
18.08
1.69
22.53
19.21
1.75
23.96
18.69
1.82
25.00
19.14
1.84
26.83
19.40
1.87
28.27
19.84
1.91
95
20.49
17.89
1.77
21.92
19.03
1.83
23.35
18.55
1.90
24.00
18.72
1.92
26.20
19.30
1.96
27.63
19.75
2.00
100
19.99
17.41
1.84
21.42
18.55
1.91
22.85
18.10
1.98
23.69
18.43
2.00
25.70
18.88
2.04
27.13
19.35
2.08
105
19.49
16.93
1.92
20.92
18.07
1.99
22.35
17.66
2.06
23.38
18.14
2.08
25.20
18.47
2.12
26.63
18.94
2.16
110
18.99
16.35
1.99
20.42
17.49
2.06
21.85
17.12
2.14
22.88
17.60
2.16
24.70
17.94
2.21
26.13
18.42
2.25
115
18.49
15.86
2.07
19.92
17.00
2.14
21.35
16.66
2.22
22.38
17.15
2.25
24.20
17.51
2.29
25.63
18.00
2.33
118
18.19
15.75
2.11
19.62
16.89
2.19
21.05
16.58
2.27
22.08
17.07
2.30
23.90
17.46
2.34
25.33
17.96
2.39
122
18.10
15.71
2.17
19.52
16.86
2.25
20.95
16.55
2.33
21.98
17.05
2.36
23.81
17.44
2.40
25.23
17.94
2.45
68 / 57
72 / 61
77 / 64
86 / 72
90 / 75
Product Data
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC: Total Capacity
(kBtu/h)
SHC: Sensible Capacity (kBtu/h) PI: Power Input (kW) (includes compressor, indoor fan
motor and outdoor fan motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Cooling operating range with the Low Ambient Baffle Kit (sold separately) is -4°F to
+122°F.
3. Grey shading indicates reference data. When operating the unit at this temperature,
these values can be different by discontinuous operation.
4. Direct interpolation is permissible.
Do not extrapolate.
80 / 67
Nominal capacity as rated: 0 ft. above sea level with 25 ft. of refrigerant piping.
0 ft. level difference between outdoor and indoor units.
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).
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
|
53
PERFORMANCE DATA
Cooling Capacity Tables
Cooling Capacity Table for LV360HV4 (LUU368HV + LVN360HV4)
Table 28: Cooling Capacity Table for LUU368HV + LVN360HV4.
TC
SHC
PI
-4
35.39
26.37
1.70
0
35.37
26.52
1.72
5
35.34
26.76
10
35.32
15
35.29
20
Single Zone Vertical Air Handling Unit Engineering Manual
Outdoor
Air
Temp.
(°F DB)
Indoor Air Temp. °F DB / °F WB
68 / 57
72 / 61
TC
SHC
77 / 64
86 / 72
90 / 75
TC
SHC
PI
TC
SHC
PI
TC
SHC
PI
TC
SHC
PI
37.59 27.86
1.77
39.79
26.97
1.83
41.38
27.54
1.85
44.19
27.77
1.89
46.38
28.30
1.92
37.57 28.02
1.79
39.77
27.13
1.85
41.35
27.70
1.87
44.16
27.94
1.91
46.36
28.46
1.95
1.75
37.54 28.26
1.81
39.73
27.37
1.88
41.32
27.94
1.90
44.12
28.18
1.94
46.32
28.71
1.98
26.97
1.78
37.51 28.49
1.84
39.70
27.58
1.91
41.29
28.16
1.93
44.09
28.40
1.97
46.28
28.94
2.01
27.18
1.80
37.48 28.71
1.87
39.67
27.80
1.94
41.26
28.39
1.96
44.06
28.63
2.00
46.25
29.17
2.04
35.26
27.39
1.83
37.45 28.94
1.89
39.64
28.02
1.96
41.23
28.61
1.99
44.02
28.85
2.02
46.21
29.40
2.06
25
35.24
27.61
1.85
37.43 29.16
1.92
39.61
28.24
1.99
41.19
28.83
2.01
43.99
29.07
2.05
46.18
29.62
2.09
30
35.21
27.82
1.88
37.40 29.39
1.95
39.58
28.45
2.02
41.16
29.05
2.04
43.96
29.30
2.08
46.14
29.85
2.12
35
35.18
28.03
1.91
37.37 29.61
1.98
39.55
28.67
2.05
41.13
29.27
2.07
43.92
29.52
2.11
46.11
30.08
2.15
40
35.16
28.24
1.93
37.34 29.83
2.00
39.52
28.88
2.08
41.10
29.49
2.10
43.89
29.74
2.14
46.07
30.30
2.18
45
35.13
28.45
1.96
37.31 30.05
2.03
39.49
29.10
2.10
41.07
29.71
2.13
43.86
29.96
2.17
46.04
30.53
2.21
50
35.10
28.66
1.98
37.28 30.28
2.06
39.46
29.32
2.13
41.04
29.93
2.16
43.82
30.19
2.20
46.00
30.76
2.24
55
35.08
28.87
2.01
37.25 30.50
2.08
39.43
29.53
2.16
41.01
30.15
2.18
43.79
30.41
2.22
45.97
30.98
2.27
60
35.05
29.08
2.04
37.23 30.72
2.11
39.40
29.74
2.19
40.97
30.37
2.21
43.76
30.63
2.25
45.93
31.21
2.30
65
35.02
29.29
2.06
37.20 30.94
2.14
39.37
29.96
2.21
40.94
30.59
2.24
43.72
30.85
2.28
45.90
31.43
2.33
70
34.99
29.50
2.09
37.17 31.16
2.16
39.34
30.17
2.24
40.91
30.81
2.27
43.69
31.07
2.31
45.86
31.66
2.36
75
34.15
29.01
2.20
36.32 30.69
2.28
38.49
29.75
2.36
40.05
30.40
2.39
42.82
30.69
2.44
44.99
31.30
2.48
80
33.31
28.52
2.31
35.47 30.20
2.40
37.64
29.31
2.48
39.20
29.98
2.51
41.96
30.30
2.56
44.12
30.93
2.61
85
32.48
28.00
2.42
34.63 29.70
2.51
36.79
28.86
2.61
38.35
29.53
2.64
41.10
29.89
2.68
43.26
30.54
2.74
90
31.64
27.47
2.54
33.79 29.18
2.63
35.94
28.39
2.73
37.50
29.08
2.76
40.25
29.48
2.81
42.40
30.14
2.87
95
30.74
27.18
2.65
32.88 28.92
2.75
35.02
28.17
2.85
36.00
28.44
2.88
39.30
29.32
2.93
41.44
30.01
2.99
100
29.99
26.45
2.76
32.13 28.19
2.86
34.27
27.50
2.97
35.53
28.00
3.00
38.55
28.69
3.06
40.69
29.39
3.12
105
29.24
25.72
2.88
31.38 27.46
2.98
33.52
26.83
3.09
35.07
27.56
3.12
37.80
28.06
3.18
39.94
28.78
3.25
110
28.49
24.84
2.99
30.63 26.57
3.10
32.77
26.00
3.21
34.32
26.74
3.25
37.05
27.26
3.31
39.20
27.99
3.37
115
27.74
24.10
3.10
29.88 25.82
3.21
32.02
25.31
3.33
33.57
26.05
3.37
36.31
26.61
3.43
38.45
27.35
3.50
118
27.29
23.93
3.17
29.43 25.66
3.28
31.57
25.19
3.40
33.12
25.94
3.44
35.86
26.52
3.51
38.00
27.28
3.58
122
27.14
23.87
3.26
29.28 25.61
3.38
31.43
25.14
3.50
32.97
25.90
3.54
35.71
26.49
3.61
37.85
27.25
3.68
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC: Total Capacity
(kBtu/h)
SHC: Sensible Capacity (kBtu/h) PI: Power Input (kW) (includes compressor, indoor fan
motor and outdoor fan motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Cooling operating range with the Low Ambient Baffle Kit (sold separately) is -4°F to
+122°F.
3. Grey shading indicates reference data. When operating the unit at this temperature,
these values can be different by discontinuous operation.
4. Direct interpolation is permissible.
Do not extrapolate.
54
80 / 67
PI
| PRODUCT DATA
Nominal capacity as rated: 0 ft. above sea level with 25 ft. of refrigerant piping.
0 ft. level difference between outdoor and indoor units.
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).
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 Tables
Cooling Capacity Table for LV420HV (LUU428HV + LVN420HV)
Table 29: Cooling Capacity Table for LUU428HV + LVN420HV.
Outdoor
Air
Temp.
(°F DB)
Indoor Air Temp. °F DB / °F WB
TC
SHC
PI
TC
SHC
PI
TC
SHC
-4
41.29
29.99
2.25
43.86
31.68
2.33
46.42
30.67
2.42 48.27
31.32
0
41.27
30.16
2.27
43.83
31.86
2.36
46.40
30.85
2.44 48.25
31.50
68 / 57
72 / 61
77 / 64
80 / 67
PI
TC
SHC
86 / 72
PI
TC
SHC
90 / 75
PI
TC
SHC
PI
2.44 51.55 31.58 2.49
54.11
32.18
2.54
2.47 51.52 31.77 2.52
54.08
32.37
2.57
41.24
30.42
2.31
43.80
32.14
2.39
46.36
31.12
2.48 48.21
31.77
2.51 51.48 32.04 2.56
54.04
32.65
2.61
41.20
30.67
2.34
43.76
32.39
2.43
46.32
31.37
2.52 48.17
32.03
2.55 51.44 32.30 2.59
54.00
32.91
2.65
15
41.17
30.91
2.38
43.73
32.65
2.46
46.29
31.61
2.55 48.13
32.28
2.58 51.40 32.55 2.63
53.96
33.17
2.69
20
41.14
31.15
2.41
43.70
32.91
2.50
46.25
31.86
2.59 48.10
32.53
2.62 51.36 32.81 2.67
53.92
33.43
2.72
25
41.11
31.39
2.45
43.66
33.16
2.54
46.22
32.11
2.63 48.06
32.78
2.66 51.32 33.06 2.71
53.88
33.69
2.76
30
41.08
31.63
2.48
43.63
33.41
2.57
46.18
32.35
2.66 48.02
33.04
2.70 51.28 33.31 2.75
53.83
33.95
2.80
35
41.05
31.87
2.51
43.60
33.67
2.61
46.15
32.60
2.70 47.99
33.29
2.73 51.24 33.57 2.78
53.79
34.20
2.84
40
41.02
32.11
2.55
43.56
33.92
2.64
46.11
32.85
2.74 47.95
33.54
2.77 51.20 33.82 2.82
53.75
34.46
2.88
45
40.98
32.35
2.58
43.53
34.18
2.68
46.07
33.09
2.78 47.91
33.79
2.81 51.17 34.07 2.86
53.71
34.72
2.92
50
40.95
32.59
2.62
43.50
34.43
2.71
46.04
33.34
2.81 47.88
34.04
2.84 51.13 34.32 2.90
53.67
34.97
2.96
55
40.92
32.83
2.65
43.46
34.68
2.75
46.00
33.58
2.85 47.84
34.29
2.88 51.09 34.58 2.94
53.63
35.23
2.99
60
40.89
33.07
2.69
43.43
34.93
2.78
45.97
33.82
2.89 47.80
34.54
2.92 51.05 34.83 2.97
53.59
35.49
3.03
65
40.86
33.31
2.72
43.40
35.18
2.82
45.93
34.07
2.92 47.77
34.78
2.96 51.01 35.08 3.01
53.55
35.74
3.07
70
40.83
33.54
2.75
43.36
35.43
2.85
45.90
34.31
2.96 47.73
35.03
2.99 50.97 35.33 3.05
53.50
36.00
3.11
75
39.84
32.99
2.90
42.37
34.90
3.01
44.90
33.83
3.12 46.73
34.57
3.15 49.96 34.90 3.21
52.49
35.59
3.28
80
38.86
32.43
3.05
41.39
34.35
3.16
43.91
33.33
3.28 45.73
34.09
3.32 48.95 34.46 3.38
51.48
35.17
3.45
85
37.89
31.84
3.20
40.41
33.77
3.32
42.92
32.81
3.44 44.74
33.58
3.48 47.96 33.99 3.54
50.47
34.73
3.61
90
36.91
31.23
3.35
39.43
33.18
3.47
41.94
32.28
3.60 43.75
33.07
3.64 46.96 33.52 3.71
49.47
34.27
3.78
95
35.86
30.91
3.50
38.36
32.88
3.62
40.85
32.04
3.76 42.00
32.34
3.80 45.85 33.34 3.87
48.35
34.12
3.95
100
34.98
30.08
3.65
37.48
32.05
3.78
39.98
31.27
3.92 41.46
31.84
3.96 44.98 32.62 4.04
47.47
33.42
4.12
105
34.11
29.25
3.79
36.61
31.22
3.93
39.11
30.51
4.08 40.91
31.34
4.12 44.10 31.90 4.20
46.60
32.72
4.28
110
33.24
28.25
3.94
35.74
30.21
4.09
38.23
29.57
4.24 40.04
30.40
4.28 43.23 31.00 4.36
45.73
31.83
4.45
115
32.37
27.41
4.09
34.86
29.36
4.24
37.36
28.78
4.40 39.17
29.63
4.45 42.36 30.26 4.53
44.86
31.10
4.62
118
31.84
27.21
4.18
34.34
29.18
4.33
36.84
28.64
4.49 38.64
29.50
4.54 41.83 30.16 4.63
44.33
31.02
4.72
122
31.67
27.14
4.30
34.16
29.12
4.46
36.66
28.59
4.62 38.47
29.45
4.67 41.66 30.12 4.76
44.16
30.99
4.86
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC: Total Capacity
(kBtu/h)
SHC: Sensible Capacity (kBtu/h) PI: Power Input (kW) (includes compressor, indoor fan
motor and outdoor fan motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Cooling operating range with the Low Ambient Baffle Kit (sold separately) is -4°F to
+122°F.
3. Grey shading indicates reference data. When operating the unit at this temperature,
these values can be different by discontinuous operation.
4. Direct interpolation is permissible.
Do not extrapolate.
Product Data
5
10
Nominal capacity as rated: 0 ft. above sea level with 25 ft. of refrigerant piping.
0 ft. level difference between outdoor and indoor units.
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).
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
|
55
PERFORMANCE DATA
Cooling Capacity Tables
Cooling Capacity Table for LV480HV (LUU488HV + LVN480HV)
Table 30: Cooling Capacity Table for LUU488HV + LVN480HV.
TC
SHC
PI
TC
SHC
-4
47.19
33.83
2.84
50.12
35.73
0
47.16
34.02
2.87
50.09
5
47.13
34.32
2.92
50.05
10
47.09
34.59
2.96
15
47.05
34.87
20
47.02
35.14
25
46.98
30
46.95
35
Single Zone Vertical Air Handling Unit Engineering Manual
Outdoor
Air
Temp.
(°F DB)
Indoor Air Temp. °F DB / °F WB
68 / 57
72 / 61
77 / 64
PI
TC
86 / 72
90 / 75
PI
TC
SHC
PI
TC
SHC
PI
TC
SHC
PI
2.94 53.05
34.60
3.05
55.17
35.33
3.09
58.91
35.62
3.14
61.84
36.30
3.21
35.94
2.98 53.02
34.80
3.08
55.14
35.53
3.12
58.88
35.83
3.18
61.81
36.51
3.24
36.25
3.02 52.98
35.10
3.13
55.09
35.84
3.17
58.83
36.14
3.23
61.76
36.83
3.29
50.01
36.54
3.07 52.94
35.38
3.18
55.05
36.13
3.22
58.79
36.43
3.28
61.71
37.12
3.34
3.00
49.98
36.83
3.11
52.90
35.66
3.23
55.01
36.41
3.26
58.74
36.72
3.33
61.67
37.41
3.39
3.05
49.94
37.12
3.16 52.86
35.94
3.27
54.97
36.70
3.31
58.70
37.01
3.37
61.62
37.71
3.44
35.41
3.09
49.90
37.41
3.20 52.82
36.22
3.32
54.93
36.98
3.36
58.65
37.29
3.42
61.57
38.00
3.49
35.68
3.13
49.86
37.69
3.25 52.78
36.50
3.37
54.88
37.26
3.41
58.61
37.58
3.47
61.52
38.29
3.54
46.91
35.95
3.18
49.82
37.98
3.29 52.74
36.77
3.41
54.84
37.55
3.45
58.56
37.86
3.52
61.48
38.58
3.59
40
46.87
36.22
3.22
49.79
38.26
3.34 52.70
37.05
3.46
54.80
37.83
3.50
58.52
38.15
3.56
61.43
38.87
3.64
45
46.84
36.49
3.26
49.75
38.55
3.38 52.66
37.33
3.51
54.76
38.11
3.55
58.47
38.43
3.61
61.38
39.16
3.68
50
46.80
36.76
3.31
49.71
38.84
3.43 52.62
37.60
3.55
54.72
38.39
3.59
58.43
38.72
3.66
61.34
39.45
3.73
55
46.77
37.03
3.35
49.67
39.12
3.47 52.58
37.88
3.60
54.67
38.68
3.64
58.38
39.00
3.71
61.29
39.74
3.78
60
46.73
37.30
3.39
49.63
39.40
3.52 52.54
38.15
3.64
54.63
38.96
3.69
58.34
39.29
3.76
61.24
40.03
3.83
65
46.70
37.57
3.44
49.60
39.69
3.56 52.50
38.43
3.69
54.59
39.24
3.73
58.30
39.57
3.80
61.20
40.32
3.88
70
46.66
37.84
3.48
49.56
39.97
3.61 52.46
38.70
3.74
54.55
39.52
3.78
58.25
39.85
3.85
61.15
40.60
3.93
75
45.54
37.22
3.67
48.43
39.36
3.80 51.32
38.16
3.94
53.41
38.99
3.98
57.10
39.37
4.06
59.99
40.15
4.14
80
44.41
36.58
3.85
47.30
38.74
3.99 50.18
37.60
4.14
52.26
38.45
4.19
55.95
38.87
4.27
58.83
39.68
4.35
85
43.30
35.91
4.04
46.18
38.09
4.19 49.05
37.01
4.34
51.13
37.88
4.39
54.81
38.35
4.47
57.68
39.17
4.56
90
42.19
35.23
4.23
45.06
37.43
4.38 47.93
36.42
4.54
50.00
37.30
4.60
53.66
37.81
4.68
56.53
38.66
4.78
95
40.98
34.86
4.42
43.84
37.09
4.58 46.69
36.14
4.75
48.00
36.48
4.80
52.40
37.61
4.89
55.25
38.49
4.99
100
39.98
33.93
4.60
42.84
36.15
4.77 45.69
35.28
4.95
47.38
35.91
5.00
51.40
36.80
5.10
54.26
37.70
5.20
105
38.98
33.00
4.79
41.84
35.22
4.97 44.69
34.42
5.15
46.76
35.35
5.21
50.40
35.99
5.31
53.26
36.91
5.41
110
37.99
31.87
4.98
40.84
34.08
5.16 43.70
33.35
5.35
45.76
34.29
5.41
49.41
34.97
5.51
52.26
35.90
5.62
115
36.99
30.91
5.17
39.84
33.12
5.36 42.70
32.47
5.55
44.76
33.42
5.62
48.41
34.13
5.72
51.26
35.08
5.84
118
36.39
30.69
5.28
39.24
32.92
5.47 42.10
32.30
5.67
44.16
33.27
5.74
47.81
34.02
5.85
50.66
34.99
5.96
122
36.19
30.61
5.43
39.05
32.85
5.63 41.90
32.25
5.83
43.96
33.22
5.90
47.61
33.98
6.01
50.46
34.96
6.13
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC: Total Capacity
(kBtu/h)
SHC: Sensible Capacity (kBtu/h) PI: Power Input (kW) (includes compressor, indoor fan
motor and outdoor fan motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Cooling operating range with the Low Ambient Baffle Kit (sold separately) is -4°F to
+122°F.
3. Grey shading indicates reference data. When operating the unit at this temperature,
these values can be different by discontinuous operation.
4. Direct interpolation is permissible.
Do not extrapolate.
56
80 / 67
SHC
| PRODUCT DATA
Nominal capacity as rated: 0 ft. above sea level with 25 ft. of refrigerant piping.
0 ft. level difference between outdoor and indoor units.
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).
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 Tables
Heating Capacity Table for LV180HV4 (LUU188HV + LVN180HV4)
Table 31: Heating Capacity Table for LUU188HV + LVN180HV4.
Indoor Air Temp.: °FDB
Outdoor Air
Temp.
61.0
64.0
68.0
70.0
72.0
75.0
°F WB
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
-4
-4.4
7.66
1.26
7.08
1.31
7.05
1.32
6.97
1.33
6.90
1.34
6.59
1.39
0
-0.4
9.23
1.26
8.68
1.31
8.55
1.33
8.43
1.35
8.33
1.36
7.98
1.40
5
4.5
11.10
1.27
10.58
1.32
10.33
1.35
10.16
1.36
10.03
1.38
9.62
1.42
10
9
12.35
1.28
11.85
1.33
11.52
1.36
11.32
1.38
11.16
1.39
10.72
1.44
17
15
13.73
1.29
13.25
1.34
12.83
1.38
12.60
1.40
12.41
1.42
11.94
1.46
20
19
14.56
1.30
14.10
1.34
13.63
1.39
13.37
1.41
13.17
1.43
12.67
1.47
25
23
15.96
1.32
15.49
1.36
14.95
1.41
14.66
1.44
14.44
1.46
13.89
1.50
30
28
17.37
1.34
16.83
1.39
16.25
1.43
15.95
1.46
15.72
1.49
15.14
1.52
35
32
18.78
1.37
18.18
1.41
17.56
1.45
17.24
1.48
16.99
1.51
16.38
1.55
40
36
19.73
1.41
19.18
1.45
18.57
1.50
18.25
1.53
17.99
1.55
17.34
1.59
45
41
20.93
1.46
20.43
1.50
19.83
1.55
19.50
1.58
19.24
1.60
18.54
1.65
47
43
21.41
1.48
20.93
1.52
20.33
1.57
20.00
1.60
19.73
1.62
19.02
1.67
50
46
21.47
1.47
21.04
1.51
20.52
1.55
20.22
1.58
19.98
1.60
19.31
1.64
55
51
21.58
1.45
21.22
1.49
20.83
1.52
20.59
1.54
20.40
1.55
19.79
1.59
60
56
21.68
1.44
21.40
1.46
21.14
1.49
20.95
1.50
20.81
1.51
20.28
1.53
63
59
21.74
1.43
21.51
1.45
21.32
1.47
21.18
1.48
21.06
1.48
20.57
1.50
68
64
21.81
1.42
21.62
1.43
21.51
1.45
21.40
1.46
21.31
1.46
20.86
1.47
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC: Total
Capacity (kBtu/h)
PI: Power Input (kW) (includes compressor, indoor fan motor, and outdoor
fan motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Direct interpolation is permissible.
Do not extrapolate.
Nominal capacity as rated: 0 ft. above sea level with 25 ft. of refrigerant
piping.
Product Data
°F DB
0 ft. level difference between outdoor and indoor units.
Nominal heating capacity rating obtained with air entering the indoor
unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient
conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
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
|
57
PERFORMANCE DATA
Heating Capacity Tables
Heating Capacity Table for LV240HV4 (LUU248HV + LVN240HV4)
Table 32: Heating Capacity Table for LUU248HV + LVN240HV4.
Single Zone Vertical Air Handling Unit Engineering Manual
Outdoor Air
Temp.
Indoor Air Temp.: °FDB
61.0
64.0
68.0
70.0
72.0
75.0
°F DB
°F WB
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
-4
-4.4
12.73
1.64
11.85
1.71
11.74
1.73
11.60
1.74
11.48
1.75
10.98
1.81
0
-0.4
14.51
1.67
13.68
1.73
13.45
1.76
13.26
1.77
13.10
1.79
12.55
1.85
5
4.5
16.63
1.70
15.86
1.76
15.48
1.79
15.23
1.81
15.03
1.83
14.42
1.89
10
9
18.05
1.72
17.32
1.78
16.84
1.83
16.55
1.85
16.32
1.87
15.67
1.93
17
15
19.61
1.76
18.93
1.81
18.33
1.87
18.00
1.90
17.73
1.92
17.05
1.98
20
19
20.56
1.78
19.90
1.83
19.24
1.90
18.88
1.93
18.59
1.96
17.89
2.02
25
23
22.14
1.82
21.49
1.88
20.74
1.95
20.35
1.99
20.03
2.02
19.28
2.07
30
28
23.75
1.88
23.01
1.94
22.22
2.00
21.81
2.04
21.49
2.08
20.70
2.13
35
32
25.35
1.93
24.54
2.00
23.71
2.05
23.28
2.10
22.94
2.14
22.11
2.19
40
36
26.64
1.99
25.89
2.05
25.07
2.11
24.63
2.16
24.29
2.19
23.41
2.25
45
41
28.26
2.06
27.58
2.12
26.77
2.19
26.32
2.23
25.97
2.26
25.02
2.33
47
43
28.90
2.08
28.26
2.15
27.45
2.22
27.00
2.26
26.64
2.29
25.67
2.36
50
46
28.99
2.07
28.40
2.13
27.70
2.19
27.30
2.23
26.98
2.25
26.07
2.31
55
51
29.13
2.05
28.65
2.10
28.12
2.15
27.79
2.17
27.54
2.19
26.72
2.24
60
56
29.27
2.03
28.89
2.07
28.53
2.10
28.29
2.12
28.09
2.13
27.38
2.17
63
59
29.35
2.01
29.03
2.05
28.78
2.08
28.59
2.09
28.43
2.10
27.77
2.12
68
64
29.44
2.00
29.18
2.03
29.04
2.05
28.89
2.06
28.77
2.06
28.17
2.08
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC:
Total Capacity (kBtu/h)
PI: Power Input (kW) (includes compressor, indoor fan motor, and
outdoor fan motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Direct interpolation is permissible.
Do not extrapolate.
Nominal capacity as rated: 0 ft. above sea level with 25 ft. of refrigerant
piping.
58
| PRODUCT DATA
0 ft. level difference between outdoor and indoor units.
Nominal heating capacity rating obtained with air entering the indoor
unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
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 Tables
Heating Capacity Table for LV360HV4 (LUU368HV + LVN360HV4)
Table 33: Heating Capacity Table for LUU368HV + LVN360HV4.
Indoor Air Temp.: °FDB
Outdoor Air
Temp.
61.0
64.0
68.0
70.0
72.0
75.0
°F WB
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
-4
-4.4
16.28
2.30
15.09
2.39
15.00
2.41
14.82
2.43
14.68
2.44
14.02
2.53
0
-0.4
19.29
2.35
18.16
2.44
17.87
2.47
17.61
2.50
17.41
2.51
16.67
2.60
5
4.5
22.86
2.41
21.80
2.50
21.28
2.55
20.93
2.58
20.66
2.60
19.82
2.69
10
9
25.26
2.47
24.24
2.55
23.56
2.62
23.16
2.65
22.83
2.68
21.93
2.76
17
15
27.89
2.54
26.92
2.62
26.07
2.70
25.60
2.75
25.22
2.79
24.25
2.87
20
19
29.49
2.59
28.55
2.67
27.59
2.76
27.08
2.82
26.67
2.86
25.66
2.94
25
23
32.16
2.69
31.21
2.76
30.12
2.87
29.55
2.93
29.10
2.97
28.00
3.05
30
28
34.86
2.79
33.78
2.88
32.62
2.97
32.02
3.04
31.54
3.09
30.38
3.17
35
32
37.55
2.89
36.36
3.00
35.12
3.07
34.49
3.15
33.98
3.20
32.76
3.28
40
36
39.47
2.98
38.36
3.08
37.14
3.17
36.49
3.23
35.98
3.29
34.68
3.37
45
41
41.86
3.08
40.86
3.19
39.66
3.29
39.00
3.35
38.47
3.39
37.07
3.49
47
43
42.82
3.13
41.86
3.23
40.66
3.33
40.00
3.39
39.47
3.44
38.03
3.54
50
46
42.94
3.11
42.08
3.20
41.04
3.29
40.44
3.34
39.97
3.38
38.62
3.47
55
51
43.15
3.07
42.44
3.15
41.65
3.22
41.18
3.26
40.79
3.29
39.59
3.36
60
56
43.36
3.04
42.80
3.10
42.27
3.16
41.91
3.18
41.62
3.20
40.56
3.25
63
59
43.49
3.02
43.01
3.07
42.64
3.12
42.35
3.13
42.12
3.14
41.14
3.18
68
64
43.61
3.00
43.23
3.04
43.02
3.08
42.80
3.08
42.62
3.09
41.73
3.12
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC:
Total Capacity (kBtu/h)
PI: Power Input (kW) (includes compressor, indoor fan motor, and
outdoor fan motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Direct interpolation is permissible.
Do not extrapolate.
Nominal capacity as rated: 0 ft. above sea level with 25 ft. of refrigerant piping.
Product Data
°F DB
0 ft. level difference between outdoor and indoor units.
Nominal heating capacity rating obtained with air entering the indoor
unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
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
|
59
PERFORMANCE DATA
Heating Capacity Tables
Heating Capacity Table for LV420HV (LUU428HV + LVN420HV)
Table 34: Heating Capacity Table for LUU428HV + LVN420HV.
Indoor Air Temp.: °FDB
Single Zone Vertical Air Handling Unit Engineering Manual
Outdoor Air
Temp.
61.0
64.0
68.0
72.0
75.0
°F DB
°F WB
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
-4
-4.4
20.39
2.80
18.93
2.91
18.79
2.95
18.57
2.97
18.38
2.98
17.57
3.09
0
-0.4
23.74
2.85
22.37
2.96
22.00
3.01
21.68
3.04
21.43
3.06
20.53
3.17
5
4.5
27.73
2.92
26.44
3.02
25.81
3.08
25.39
3.12
25.05
3.15
24.04
3.25
10
9
30.40
2.97
29.17
3.08
28.36
3.15
27.87
3.20
27.48
3.23
26.40
3.33
17
15
33.34
3.05
32.18
3.15
31.16
3.25
30.60
3.30
30.15
3.34
28.99
3.44
20
19
35.12
3.10
34.00
3.20
32.86
3.31
32.25
3.37
31.77
3.42
30.56
3.51
25
23
38.10
3.20
36.97
3.29
35.69
3.41
35.01
3.48
34.47
3.54
33.17
3.63
30
28
41.12
3.31
39.84
3.41
38.47
3.52
37.77
3.60
37.20
3.66
35.84
3.75
35
32
44.13
3.41
42.72
3.54
41.27
3.63
40.53
3.71
39.93
3.78
38.49
3.87
40
36
46.38
3.51
45.07
3.64
43.64
3.74
42.88
3.82
42.28
3.88
40.74
3.98
45
41
49.19
3.64
48.01
3.76
46.60
3.88
45.82
3.95
45.20
4.00
43.56
4.12
47
43
50.31
3.69
49.19
3.81
47.78
3.93
47.00
4.00
46.38
4.05
44.69
4.18
50
46
50.46
3.67
49.44
3.77
48.22
3.88
47.52
3.94
46.96
3.99
45.37
4.10
55
51
50.70
3.63
49.86
3.72
48.94
3.80
48.38
3.85
47.93
3.88
46.51
3.97
60
56
50.95
3.59
50.29
3.66
49.67
3.72
49.24
3.75
48.90
3.77
47.65
3.83
63
59
51.10
3.56
50.54
3.62
50.10
3.68
49.76
3.69
49.49
3.71
48.34
3.75
68
64
51.25
3.54
50.80
3.59
50.54
3.63
50.29
3.64
50.08
3.65
49.03
3.68
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC:
Total Capacity (kBtu/h)
PI: Power Input (kW) (includes compressor, indoor fan motor, and
outdoor fan motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Direct interpolation is permissible.
Do not extrapolate.
Nominal capacity as rated: 0 ft. above sea level with 25 ft. of refrigerant
piping.
60
70.0
| PRODUCT DATA
0 ft. level difference between outdoor and indoor units.
Nominal heating capacity rating obtained with air entering the indoor
unit at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
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 Tables
Heating Capacity Table for LV480HV (LUU488HV + LVN480HV)
Table 35: Heating Capacity Table for LUU488HV + LVN480HV.
Indoor Air Temp.: °FDB
Outdoor Air
Temp.
61.0
64.0
68.0
70.0
72.0
75.0
°F WB
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
-4
-4.4
25.60
3.39
23.81
3.53
23.61
3.57
23.32
3.59
23.08
3.61
22.07
3.74
0
-0.4
29.41
3.47
27.72
3.61
27.25
3.66
26.86
3.69
26.55
3.72
25.43
3.85
5
4.5
33.94
3.57
32.37
3.70
31.59
3.78
31.08
3.82
30.67
3.86
29.43
3.99
10
9
36.97
3.67
35.48
3.79
34.49
3.89
33.90
3.94
33.42
3.98
32.11
4.11
17
15
40.31
3.79
38.91
3.91
37.68
4.03
37.00
4.10
36.45
4.15
35.05
4.27
20
19
42.33
3.87
40.98
3.99
39.62
4.13
38.88
4.21
38.29
4.27
36.84
4.38
25
23
45.72
4.02
44.37
4.14
42.83
4.29
42.02
4.38
41.37
4.45
39.81
4.57
30
28
49.15
4.19
47.63
4.33
45.99
4.46
45.15
4.56
44.48
4.64
42.84
4.75
35
32
52.58
4.35
50.90
4.51
49.17
4.62
48.29
4.73
47.58
4.82
45.86
4.94
40
36
55.26
4.48
53.70
4.64
51.99
4.77
51.09
4.87
50.37
4.95
48.55
5.08
45
41
58.60
4.64
57.20
4.79
55.52
4.94
54.60
5.03
53.86
5.11
51.90
5.25
47
43
59.94
4.70
58.60
4.86
56.93
5.01
56.00
5.10
55.26
5.17
53.25
5.32
50
46
60.12
4.67
58.91
4.81
57.45
4.95
56.62
5.03
55.95
5.09
54.06
5.22
55
51
60.41
4.62
59.41
4.74
58.31
4.85
57.65
4.91
57.11
4.95
55.42
5.06
60
56
60.71
4.57
59.92
4.66
59.18
4.75
58.67
4.78
58.27
4.81
56.78
4.89
63
59
60.88
4.54
60.22
4.62
59.70
4.69
59.29
4.71
58.96
4.73
57.59
4.79
68
64
61.06
4.52
60.52
4.57
60.22
4.63
59.91
4.64
59.67
4.65
58.42
4.69
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC: Total
Capacity (kBtu/h)
PI: Power Input (kW) (includes compressor, indoor fan motor, and outdoor
fan motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Direct interpolation is permissible.
Do not extrapolate.
Nominal capacity as rated: 0 ft. above sea level with 25 ft. of refrigerant
piping.
Product Data
°F DB
0 ft. level difference between outdoor and indoor units.
Nominal heating capacity rating obtained with air entering the indoor unit
at 70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry bulb (DB) and 43ºF wet bulb (WB).
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
|
61
PERFORMANCE DATA
Maximum Heating Capacity Tables
Maximum Heating Capacity Table for LV180HV4 (LUU188HV + LVN180HV4)
Table 36: Maximum Heating Capacity Table for LUU188HV + LVN180HV4.
Outdoor Air
Temp.
Single Zone Vertical Air Handling Unit Engineering Manual
°F DB
°F WB
Indoor Air Temp.: °FDB
61.0
TC
64.0
PI
68.0
TC
PI
PI
72.0
75.0
TC
PI
TC
PI
TC
PI
-4
-4.4
11.77
2.54
11.51
2.62
11.18
2.70
11.00
2.75
10.85
2.79
10.46
2.87
0
-0.4
14.15
2.43
13.84
2.51
13.44
2.59
13.22
2.64
13.05
2.67
12.57
2.76
5
4.5
17.13
2.31
16.74
2.38
16.27
2.46
16.00
2.50
15.79
2.53
15.21
2.61
10
9
18.04
2.20
17.64
2.27
17.14
2.34
16.86
2.38
16.63
2.42
16.03
2.49
17
15
19.61
2.13
18.93
2.19
18.33
2.26
18.00
2.30
17.73
2.33
17.05
2.40
20
19
19.93
2.06
19.30
2.13
18.65
2.20
18.31
2.24
18.03
2.27
17.34
2.34
25
23
20.47
1.97
19.87
2.03
19.18
2.10
18.81
2.14
18.52
2.18
17.83
2.24
30
28
21.04
1.88
20.38
1.94
19.68
2.00
19.32
2.05
19.03
2.08
18.33
2.13
35
32
21.59
1.79
20.91
1.86
20.19
1.90
19.83
1.95
19.54
1.98
18.83
2.03
40
36
22.69
1.84
22.06
1.91
21.35
1.96
20.98
2.00
20.69
2.04
19.94
2.09
45
41
24.07
1.91
23.49
1.97
22.80
2.04
22.42
2.07
22.12
2.10
21.32
2.16
47
43
24.62
1.94
24.07
2.00
23.38
2.06
23.00
2.10
22.69
2.13
21.87
2.19
50
46
24.69
1.92
24.19
1.98
23.60
2.04
23.25
2.07
22.98
2.09
22.20
2.15
55
51
24.81
1.90
24.40
1.95
23.95
2.00
23.68
2.02
23.46
2.04
22.76
2.08
60
56
24.93
1.88
24.61
1.92
24.31
1.96
24.10
1.97
23.93
1.98
23.32
2.01
63
59
25.01
1.87
24.73
1.90
24.52
1.93
24.35
1.94
24.22
1.95
23.65
1.97
68
64
25.08
1.86
24.86
1.88
24.73
1.91
24.61
1.91
24.51
1.91
23.99
1.93
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC: Total Capacity
(kBtu/h)
PI: Power Input (kW) (includes compressor, indoor fan motor, and outdoor fan
motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Direct interpolation is permissible.
Do not extrapolate.
Nominal capacity as rated: 0 ft. above sea level with 25 ft. of refrigerant piping.
62
70.0
TC
| PRODUCT DATA
0 ft. level difference between outdoor and indoor units.
Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF
dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry
bulb (DB) and 43ºF wet bulb (WB).
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
Maximum Heating Capacity Tables
Maximum Heating Capacity Table for LV240HV4 (LUU248HV + LVN240HV4)
Table 37: Maximum Heating Capacity Table for LUU248HV + LVN240HV4.
Outdoor Air
Temp.
Indoor Air Temp.: °FDB
61.0
64.0
68.0
70.0
72.0
75.0
°F WB
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
-4
-4.4
16.06
3.04
15.70
3.14
15.25
3.24
15.00
3.30
14.80
3.34
14.26
3.44
0
-0.4
18.43
3.00
18.02
3.10
17.51
3.20
17.22
3.25
16.99
3.30
16.37
3.40
5
4.5
21.41
2.95
20.93
3.05
20.33
3.15
20.00
3.20
19.73
3.24
19.02
3.34
10
9
22.33
2.84
21.83
2.94
21.20
3.03
20.86
3.08
20.58
3.13
19.83
3.22
17
15
23.97
2.77
23.13
2.86
22.41
2.95
22.00
3.00
21.68
3.04
20.84
3.13
20
19
24.66
2.70
23.87
2.78
23.07
2.88
22.64
2.93
22.30
2.98
21.45
3.06
25
23
25.81
2.59
25.05
2.67
24.18
2.77
23.72
2.82
23.35
2.87
22.47
2.94
30
28
26.99
2.49
26.15
2.57
25.26
2.65
24.79
2.71
24.42
2.76
23.52
2.83
35
32
28.17
2.39
27.27
2.48
26.34
2.54
25.87
2.60
25.49
2.65
24.57
2.71
40
36
29.60
2.46
28.77
2.55
27.85
2.62
27.37
2.67
26.98
2.72
26.01
2.79
45
41
31.40
2.55
30.65
2.63
29.74
2.71
29.25
2.76
28.85
2.80
27.81
2.88
47
43
32.11
2.58
31.40
2.67
30.50
2.75
30.00
2.80
29.60
2.84
28.52
2.92
50
46
32.21
2.57
31.56
2.64
30.78
2.72
30.33
2.76
29.97
2.79
28.96
2.87
55
51
32.36
2.54
31.83
2.60
31.24
2.66
30.88
2.69
30.59
2.72
29.69
2.78
60
56
32.52
2.51
32.10
2.56
31.70
2.61
31.43
2.63
31.22
2.64
30.42
2.68
63
59
32.62
2.50
32.26
2.54
31.98
2.57
31.76
2.59
31.59
2.60
30.85
2.63
68
64
32.71
2.48
32.42
2.51
32.26
2.54
32.10
2.55
31.96
2.55
31.30
2.57
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC: Total
Capacity (kBtu/h)
PI: Power Input (kW) (includes compressor, indoor fan motor, and outdoor fan
motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Direct interpolation is permissible.
Do not extrapolate.
Nominal capacity as rated: 0 ft. above sea level with 25 ft. of refrigerant piping.
Product Data
°F DB
0 ft. level difference between outdoor and indoor units.
Nominal heating capacity rating obtained with air entering the indoor unit at
70ºF dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of
47ºF dry bulb (DB) and 43ºF wet bulb (WB).
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
|
63
PERFORMANCE DATA
Maximum Heating Capacity Tables
Maximum Heating Capacity Table for LV360HV4 (LUU368HV + LVN360HV4)
Table 38: Maximum Heating Capacity Table for LUU368HV + LVN360HV4.
Single Zone Vertical Air Handling Unit Engineering Manual
Outdoor Air
Temp.
Indoor Air Temp.: °FDB
61.0
64.0
68.0
70.0
72.0
75.0
°F DB
°F WB
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
-4
-4.4
23.55
3.97
23.02
4.10
22.36
4.23
22.00
4.30
21.71
4.36
20.92
4.49
0
-0.4
27.35
4.01
26.74
4.14
25.98
4.27
25.55
4.35
25.22
4.41
24.30
4.54
5
4.5
32.11
4.06
31.40
4.19
30.50
4.33
30.00
4.40
29.60
4.46
28.52
4.59
10
9
33.03
4.11
32.29
4.25
31.37
4.38
30.86
4.46
30.45
4.52
29.34
4.65
17
15
34.86
4.16
33.65
4.29
32.59
4.43
32.00
4.50
31.53
4.56
30.32
4.69
20
19
36.39
4.17
35.23
4.30
34.05
4.45
33.42
4.53
32.92
4.60
31.66
4.72
25
23
38.95
4.21
37.79
4.33
36.48
4.49
35.79
4.58
35.24
4.66
33.91
4.78
30
28
41.54
4.26
40.25
4.40
38.87
4.53
38.16
4.63
37.59
4.71
36.20
4.83
35
32
44.13
4.31
42.72
4.46
41.27
4.58
40.53
4.69
39.93
4.77
38.49
4.89
40
36
46.38
4.44
45.07
4.59
43.64
4.72
42.88
4.82
42.28
4.90
40.74
5.03
45
41
49.19
4.59
48.01
4.75
46.60
4.89
45.82
4.98
45.20
5.06
43.56
5.20
47
43
50.31
4.66
49.19
4.81
47.78
4.96
47.00
5.05
46.38
5.12
44.69
5.27
50
46
50.46
4.63
49.44
4.77
48.22
4.90
47.52
4.98
46.96
5.04
45.37
5.17
55
51
50.70
4.58
49.86
4.69
48.94
4.80
48.38
4.86
47.93
4.90
46.51
5.01
60
56
50.95
4.53
50.29
4.62
49.67
4.70
49.24
4.74
48.90
4.77
47.65
4.84
63
59
51.10
4.50
50.54
4.57
50.10
4.64
49.76
4.66
49.49
4.68
48.34
4.74
68
64
51.25
4.47
50.80
4.53
50.54
4.58
50.29
4.59
50.08
4.60
49.03
4.64
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC: Total
Capacity (kBtu/h)
PI: Power Input (kW) (includes compressor, indoor fan motor, and outdoor fan
motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Direct interpolation is permissible.
Do not extrapolate.
Nominal capacity as rated: 0 ft. above sea level with 25 ft. of refrigerant piping.
64
| PRODUCT DATA
0 ft. level difference between outdoor and indoor units.
Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF
dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF
dry bulb (DB) and 43ºF wet bulb (WB).
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
Maximum Heating Capacity Tables
Maximum Heating Capacity Table for LV420HV (LUU428HV + LVN420HV)
Table 39: Maximum Heating Capacity Table for LUU428HV + LVN420HV.
Outdoor Air
Temp.
Indoor Air Temp.: °FDB
61.0
64.0
68.0
70.0
72.0
75.0
°F DB
°F WB
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
-4
-4.4
25.69
4.33
25.12
4.48
24.40
4.62
24.00
4.70
23.68
4.76
22.82
4.91
0
-0.4
29.50
4.37
28.84
4.52
28.01
4.66
27.56
4.74
27.19
4.81
26.20
4.95
4.5
34.25
4.43
33.49
4.57
32.53
4.72
32.00
4.80
31.57
4.87
30.43
5.01
9
36.55
4.53
35.73
4.68
34.71
4.83
34.14
4.92
33.69
4.98
32.46
5.13
17
15
40.31
4.62
38.91
4.77
37.68
4.92
37.00
5.00
36.45
5.07
35.05
5.21
20
19
42.18
4.64
40.83
4.78
39.47
4.95
38.74
5.04
38.15
5.11
36.70
5.26
25
23
45.31
4.69
43.96
4.82
42.44
5.01
41.63
5.11
40.99
5.19
39.45
5.33
30
28
48.47
4.76
46.97
4.91
45.36
5.06
44.53
5.18
43.86
5.26
42.25
5.40
35
32
51.64
4.82
49.99
4.99
48.29
5.12
47.42
5.24
46.73
5.34
45.04
5.47
40
36
54.27
4.96
52.74
5.14
51.06
5.28
50.18
5.39
49.47
5.48
47.68
5.62
45
41
57.56
5.14
56.18
5.31
54.53
5.48
53.62
5.58
52.90
5.66
50.98
5.82
47
43
58.87
5.21
57.56
5.38
55.91
5.55
55.00
5.65
54.27
5.73
52.30
5.90
50
46
59.05
5.18
57.86
5.33
56.42
5.49
55.61
5.57
54.95
5.64
53.10
5.79
55
51
59.33
5.12
58.35
5.25
57.27
5.37
56.62
5.43
56.09
5.48
54.43
5.60
60
56
59.62
5.07
58.85
5.17
58.12
5.26
57.63
5.30
57.23
5.33
55.76
5.41
63
59
59.80
5.03
59.14
5.12
58.63
5.19
58.23
5.22
57.91
5.24
56.56
5.30
68
64
59.97
5.00
59.44
5.07
59.15
5.13
58.84
5.14
58.60
5.15
57.38
5.19
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC: Total Capacity
(kBtu/h)
PI: Power Input (kW) (includes compressor, indoor fan motor, and outdoor fan
motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Direct interpolation is permissible.
Do not extrapolate.
Nominal capacity as rated: 0 ft. above sea level with 25 ft. of refrigerant piping.
Product Data
5
10
0 ft. level difference between outdoor and indoor units.
Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF
dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF dry
bulb (DB) and 43ºF wet bulb (WB).
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
|
65
PERFORMANCE DATA
Maximum Heating Capacity Tables
Maximum Heating Capacity Table for LV480HV (LUU488HV + LVN480HV)
Table 40: Maximum Heating Capacity Table for LUU488HV + LVN480HV.
Single Zone Vertical Air Handling Unit Engineering Manual
Outdoor Air
Temp.
Indoor Air Temp.: °FDB
61.0
64.0
68.0
70.0
72.0
75.0
°F DB
°F WB
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
TC
PI
-4
-4.4
27.83
4.71
27.21
4.86
26.43
5.02
26.00
5.10
25.65
5.17
24.72
5.33
0
-0.4
31.64
4.77
30.93
4.92
30.05
5.08
29.56
5.17
29.16
5.24
28.10
5.40
5
4.5
36.39
4.84
35.58
5.00
34.56
5.16
34.00
5.25
33.55
5.32
32.33
5.48
10
9
39.15
4.92
38.27
5.08
37.18
5.25
36.57
5.34
36.09
5.41
34.77
5.57
17
15
43.58
4.99
42.06
5.15
40.74
5.31
40.00
5.40
39.41
5.47
37.89
5.63
20
19
45.68
5.00
44.23
5.15
42.75
5.33
41.96
5.43
41.32
5.51
39.75
5.66
25
23
49.21
5.02
47.75
5.17
46.09
5.37
45.22
5.47
44.52
5.56
42.84
5.71
30
28
52.77
5.07
51.14
5.24
49.38
5.40
48.47
5.52
47.75
5.62
45.99
5.76
35
32
56.33
5.12
54.54
5.30
52.68
5.44
51.73
5.57
50.98
5.67
49.13
5.81
40
36
59.20
5.27
57.54
5.45
55.70
5.61
54.74
5.73
53.97
5.82
52.01
5.97
45
41
62.79
5.46
61.29
5.64
59.48
5.82
58.50
5.92
57.71
6.01
55.61
6.18
47
43
64.23
5.53
62.79
5.72
61.00
5.90
60.00
6.00
59.20
6.08
57.05
6.26
50
46
64.41
5.50
63.12
5.66
61.55
5.83
60.66
5.91
59.95
5.98
57.92
6.15
55
51
64.73
5.44
63.66
5.57
62.48
5.71
61.76
5.77
61.19
5.82
59.38
5.95
60
56
65.04
5.38
64.20
5.49
63.41
5.59
62.86
5.63
62.43
5.66
60.83
5.75
63
59
65.23
5.35
64.52
5.43
63.96
5.51
63.53
5.54
63.18
5.56
61.71
5.63
68
64
65.42
5.31
64.85
5.38
64.52
5.44
64.19
5.46
63.93
5.47
62.59
5.51
DB: Dry Bulb Temperature (°F) WB: Wet Bulb Temperature (°F) TC: Total
Capacity (kBtu/h)
PI: Power Input (kW) (includes compressor, indoor fan motor, and outdoor fan
motor)
1. All capacities are net, evaporator fan motor heat is deducted.
2. Direct interpolation is permissible.
Do not extrapolate.
Nominal capacity as rated: 0 ft. above sea level with 25 ft. of refrigerant piping.
66
| PRODUCT DATA
0 ft. level difference between outdoor and indoor units.
Nominal heating capacity rating obtained with air entering the indoor unit at 70ºF
dry bulb (DB) and 60ºF wet bulb (WB), and outdoor ambient conditions of 47ºF
dry bulb (DB) and 43ºF wet bulb (WB).
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.
EQUIPMENT SELECTION PROCEDURE
Correction Factors
Cooling / Heating Correction Factors
For Single Zone Vertical Air Handling Unit systems, calculate the equivalent length of the liquid line from the outdoor unit to the indoor unit.
Also, determine the elevation difference of the indoor unit above or below the outdoor unit. Find corresponding cooling or heating capacity
correction factors as shown below. Multiply the correction factors by the cooling or heating capacity obtained from the capacity table using
design conditions. The result is the NET cooling or heating capacity.
Refrigerant Line Length Derates
For air-cooled systems, a capacity correction factor may have to be applied to account for the length of the system’s refrigerant pipe. Rate of
change in capacity due to increased piping lengths is shown below.
Cooling Capacity Coefficient Factors
Table 41: Vertical Air Handling Unit Cooling Capacity Coefficient Factors.
Piping Length (ft.)
32.8
49.2
65.6
98.4
131.2
164
196.9
229.7
246
LUU188HV (18,000 Btu/h)
100
99.3
97.9
96.6
93.8
91.1
88.4
-
-
-
Rate of
LUU368HV (36,000 Btu/h)
Capacity
Change (%) LUU428HV (42,000 Btu/h)
LUU248HV (24,000 Btu/h)
100
99.3
97.9
96.6
93.8
91.1
88.4
-
-
-
100
99.3
97.9
96.6
93.8
91.1
88.4
85.6
82.9
81.5
100
99.3
97.9
96.6
93.8
91.1
88.4
85.6
82.9
81.5
LUU488HV (48,000 Btu/h)
100
99.3
97.9
96.6
93.8
91.1
88.4
85.6
82.9
81.5
Product Data
24.6
Heating Capacity Coefficient Factors
Table 42: Vertical Air Handling Unit Heating Capacity Coefficient Factors.
Piping Length (ft.)
Rate of
Capacity
Change (%)
24.6
32.8
49.2
65.6
98.4
131.2
164
196.9
229.7
246
LUU188HV (18,000
Btu/h)
100
99.3
97.9
96.6
93.8
91.1
88.4
-
-
-
LUU248HV (24,000
Btu/h)
100
99.3
97.9
96.6
93.8
91.1
88.4
-
-
-
LUU368HV (36,000
Btu/h)
100
99.7
99.2
98.7
97.7
96.6
95.6
94.6
93.5
93.0
LUU428HV (42,000
Btu/h)
100
99.7
99.2
98.7
97.7
96.6
95.6
94.6
93.5
93.0
LUU488HV (48,000
Btu/h)
100
99.7
99.2
98.7
97.7
96.6
95.6
94.6
93.5
93.0
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
|
67
EQUIPMENT SELECTION PROCEDURE
Correction Factors
Equivalent Piping Length for Piping Components
Table 43: Equivalent Piping Length for Elbows.
Component
Single Zone Vertical Air Handling Unit Engineering Manual
Elbow (ft.)
Size (Inches)
1/4
3/8
1/2
5/8
3/4
7/8
1
1-1/8
1-1/4
1-3/8
1-1/2
1-5/8
1-3/4
2-1/8
0.5
0.6
0.7
0.8
1.2
1.3
1.5
1.6
1.8
2.0
2.1
2.3
2.5
2.8
Altitude Correction Factor
The impact of air density must be considered on systems installed at a significant altitude above sea level, therefore, locally accepted
altitude correction factors must be applied.
Defrost Correction Factor for Heating Operation
The outdoor unit heating capacity may need to be adjusted for frost accumulation on air-cooled systems. If design day conditions are below
the dewpoint of the surrounding air, frost may not be a problem and no correction factor is needed. In certain weather conditions, however,
frost may form and accumulate on the air-cooled outdoor unit coil and impact the coils ability to transfer heat. If significant frost accumulates
on the outdoor unit coil, 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.
Capacity and AHRI ratings tables do not factor in capacity reduction when frost has accumulated on the condenser coil, nor during defrost
operation.
Integrated heating capacity values can be obtained using the formula: Table 44: Outdoor Unit Frost Accumulation Factor (Heating)1.
A=BxC
Entering DB (ºF)
Derate factor
19.4 23.0 26.6 32.0 37.4 41.0 44.6
0.98 0.95 0.93 0.86 0.93 0.96 1.0
Where:
1
At 85% outdoor air relative humidity.
A = Integrated Heating Capacity.
The frost accumulation factor does not account for effects of snow accumulation restricting airflow
through the outdoor unit coil.
B = Value found in the Capacity Table.
C = Correction Factor for Frost Accumulation Factor (from table at right).
There will be a temporary reduction in capacity when frost / ice accumulates on the outside surface of the outdoor unit heat exchanger. The level of
capacity reduction depends on a number of factors, for example, outdoor temperature (°F DB), relative humidity (RH), and the amount of frost present.
68
| 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.
EQUIPMENT SELECTION PROCEDURE
Check the Indoor and Outdoor Unit Selection(s)
Compare the corrected cooling and heating capacities to the load calculations. Is each capacity sufficient for the zone it serves?
For each indoor unit, the corrected capacity must be at least equal to the total of the cooling design load (plus ventilation load, if applicable)
for the space served by the indoor unit. For each indoor unit, the corrected capacity also must be at least equal to the total of the heating
design load (plus ventilation load, if applicable) for the space(s) and / or thermal zones served by the indoor unit.
The outdoor unit selected must be large enough to offset the total cooling load for all spaces it serves (account for ventilation air cooling
load if the ventilation air has not been pretreated to room neutral conditions). The outdoor unit must also be large enough to offset the total
heating load for all spaces it serves.
If the corrected heating capacity ratio exceeds 100%, reselect the equipment, or change the system design by moving some of the load to
another system.
System Sizing Check Formulas
1. Outdoor Unit Rated Capacity.
Qodu(rated) (From capacity tables).
2. Outdoor Unit Capacity at Ti, To Temperature.
Qodu(Ti, To) (From capacity tables).
F(Ti, To) = Qodu(Ti, To) / Qodu(rated)
F(length) for each piping length
5. Individual Indoor Unit Combination Capacity.
Qidu (combi) = Qodu(rated) x Qidu(rated) / Qidu(rated-total)
6. Individual Indoor Unit Actual Capacity.
Qidu (actual) = Qodu(combi) x F(Ti, To) x F(length, altitude)
Conclusions and Recommendations
• Understand the design safety factors.
• Reference load calculations for actual cooling and heating capacities (applies in 99% of applications – consider total load when latent load
is greater than 30%).
• Verify that the sensible load of the zone is satisfied.
• Use caution when sizing to meet listed capacity specifications for the scheduled manufacturer’s equipment.
If further system design assistance is needed, or you have a unique application you would like to discuss, contact your LG sales rep.
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
|
69
Product Data
3 Outdoor Unit Capacity Coefficient Factor.
4. Piping Correction Factor (From Capacity Coefficient
Factor Tables).
VERTICAL AIR HANDLING
UNIT APPLICATION
GUIDELINES
“Placement Considerations” on page 71
“Clearances” on page 75
“Installing Outdoor Units Indoors” on page 78
“Refrigerant Piping Design” on page 80
PLACEMENT CONSIDERATIONS
Indoor Unit
Selecting the Best Location for the
Indoor Unit
Figure 41: Recommended Clearances for Vertical Air Handling Unit IDU.
Dos
Minimum 14 inches
Front
Rear
0 inches
0 inches*
0 inches*
More than
23-5/8 inches
Don’ts
*When using top panel access holes
for power wiring / communications cable
• Avoid installing the unit near high-frequency generators.
Minimum 14 inches
• No obstacles must be present to prevent indoor unit air circulation.
• Do not install the unit near a doorway.
• Do not install the unit near a heat or steam source, or where considerable amounts of oil, iron powder, or flour are used. (These materials
may generate condensate, cause a reduction in heat exchanger efficiency, or the drain pump to malfunction. If this is a potential problem,
install a ventilation fan large enough to vent out these materials.)
The unit must not be installed where sulfuric acid and flammable or corrosive gases are generated, vented into, or stored. There is risk of fire,
explosion, and physical injury or death.
The unit may be damaged, may malfunction, and / or will not operate as designed if installed in any of the conditions listed.
Indoor units (IDUs) must not be placed in an environment where the IDUs may be exposed to harmful volatile organic compounds (VOCs) or in
environments where there is improper air make up or supply or inadequate ventilation. If there are concerns about VOCs in the environment where
the IDUs are installed, proper air make up or supply and/ or adequate ventilation must be provided. Additionally, in buildings where IDUs will be
exposed to VOCs, consider a factory-applied epoxy coating to the fan coils for each IDU.
If the unit is installed near a body of water, the installation parts are at risk of corroding. Appropriate anti-corrosion methods must be taken for the unit
and all installation parts.
Installing in an Area Exposed to Unconditioned Air
In some installation applications, areas (floors, walls) in some rooms may be
exposed to unconditioned air (room may be above or next to an unheated garage
or storeroom). To countermeasure:
• Verify that carpet is or will be installed (carpet may increase the temperature by
three [3] degrees).
• Add insulation between the floor joists.
• Install radiant heat or another type of heating system to the floor.
Figure 42: Installing Near a Heat or Steam Source.
Indoor Unit
Include enough
distance
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©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Install a ventilation fan
with sufficient capacity
Heat or steam source
APPLICATION
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71
Application Guidelines
• Place the unit where air circulation will not be blocked.
• Place the unit where drainage can be obtained easily and to
minimize the length of the condensate drain piping.
• Place the unit where noise prevention is taken into consideration.
• Place the unit in a location that can support the indoor unit
weight, and where the indoor unit can be level.
• The mounting floor must be strong and solid enough to prevent
the indoor unit from vibrating.
• Ensure there is sufficient maintenance and clearance space
(wall, ceiling, or other obstacles; see diagram for clearances).
• Locate the indoor unit in a location where it can be easily connected to the outdoor unit.
PLACEMENT CONSIDERATIONS
Outdoor Unit
Selecting the Best Location for the Outdoor Unit
Single Zone Vertical Air Handling Unit Engineering Manual
Do not install the unit in an area where combustible gas may generate, flow, stagnate, or leak. These conditions can cause a fire, resulting in
bodily injury or death.
•
Do not install the unit in a location where acidic solution and spray (sulfur) are often used as it can cause bodily injury or death.
•
Do not use the unit in environments where oil, steam, or sulfuric gas are present as it can cause bodily injury or death.
When deciding on a location to place the outdoor unit, be sure to choose an area where run-off from defrost will not accumulate and freeze on
sidewalks or driveways, which may create unsafe conditions. Properly install and insulate any drain hoses to prevent the hose from freezing,
cracking, leaking, and causing unsafe conditions from frozen condensate.
Install a fence to prevent vermin from crawling into the unit or unauthorized individuals from accessing it. Follow the placement guidelines set forth in
“Clearance Requirements”.
Select a location for installing the outdoor unit that will meet the following conditions:
• Where there is enough strength to bear the weight of the outdoor unit.
• A location that allows for optimum air flow and is easily accessible for inspection, maintenance, and service.
• Where piping between the outdoor unit and indoor unit(s) are within allowable limits.
• Include space for drainage to ensure condensate flows properly out of the unit when it is in heating mode. Avoid placing the outdoor unit in
a low-lying area where water could accumulate.
• If the outdoor unit is installed in a highly humid environment (near an ocean, lake, etc.), ensure that the site is well-ventilated and has a lot
of natural light (Example: Install on a rooftop).
Don’ts
• Where it will be subjected to direct thermal radiation from other heat sources, or an area that would expose the outdoor unit to heat or
steam like discharge from boiler stacks, chimneys, steam relief ports, other air conditioning units, kitchen vents, plumbing vents, and other
sources of extreme temperatures.
• Where high-frequency electrical noise / electromagnetic waves will not affect operation.
• Where operating sound from the unit will disturb inhabitants of surrounding buildings.
• Where the unit will be exposed to direct, strong winds.
• Where the discharge of one outdoor unit will blow into the inlet side of an adjacent unit (when installing multiple outdoor units).
The indoor unit may take longer to provide heat, or heating performance will be reduced in winter if the unit is installed:
1.In a narrow, shady location.
2.Near a location that has a lot of ground moisture.
3.In a highly humid environment.
4.In an area in which condensate does not drain properly.
72
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APPLICATION
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PLACEMENT CONSIDERATIONS
Outdoor Unit
Planning for Snow and Ice
To ensure the outdoor unit operates properly, certain measures are required in locations where there is a possibility of heavy snowfall or
severe windchill or cold:
1. Prepare for severe winter wind chills and heavy snowfall, even in areas of the country where these are unusual phenomena.
2. Position the outdoor unit so that its airflow fans are not buried by direct, heavy snowfall. If snow piles up and blocks the airflow, the
system may malfunction.
3. Remove any snow that has accumulated four (4) inches or more on the top of the outdoor unit.
4. In climates that may experience significant snow buildup, mount the outdoor unit on a raised, field-provided platform or stand. The raised
support platform must be high enough to allow the unit to remain above possible snow drifts, and must be higher than the maximum anticipated snowfall for the location.
5. Design the mounting base to prevent snow accumulation on the platform in front or back of the unit frame.
6. Provide a field fabricated snow protection hood to keep snow and ice and/or drifting snow from accumulating on the coil surfaces.
7. Install a hail guard kit and air guide accessories (sold separately) to prevent snow or rain from accumulating on the fan inlet / outlet guards.
8. Consider tie-down requirements in case of high winds or where required by local codes.
Choose an area where run-off from defrost mode will not accumulate and freeze on sidewalks or driveways. Properly install and insulate any drain
hoses to prevent the hose from freezing, cracking, leaking, and damaging the outdoor unit.
Tie-Downs, Wind Restraints, and
Lightning Protection
Figure 43: Lightning Protection Diagram.
Lightning rod
Lightning rod
Protection Angle (25˚~55˚)
Tie-Downs
• The strength of the roof must be checked before installing the
outdoor units.
• If the installation site is prone to high winds or earthquakes, when
installing on the wall or roof, securely anchor the mounting base
using a field-provided tie-down configuration approved by a local
professional engineer.
• The overall tie-down configuration must be approved by a local
professional engineer. Always refer to local code when using a
wind restraint system.
51.5m
feet
Always refer to local code when designing a wind restraint system.
Lightning Protection
• To protect the outdoor unit from lightning, place the unit within the
specified lightning safety zone.
Safe zone
Table 45: Safety Zone Specifications.
Building Height (feet)
66
98
148
197
Protection Angle (˚)
55
45
35
25
• Power cable and communication cable must be installed five (5)
feet away from lightning rod.
• A high-resistance ground system must be included to protect
against induced lightning or indirect strike.
Ground
If the building does not include lightning protection, the outdoor unit
may be damaged from a lightning strike. Inform the customer of this
possibility in advance.
Due to our policy of continuous product innovation, some specifications may change without notification.
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APPLICATION
|
73
Application Guidelines
When deciding on a location to place the outdoor unit, be sure to choose an area where run-off from defrost will not accumulate and freeze on sidewalks or driveways, which may create unsafe conditions.
PLACEMENT CONSIDERATIONS
Outdoor Unit
Single Zone Vertical Air Handling Unit Engineering Manual
Wind Protection
If the outdoor unit is placed on a roof, position it with the compressor
end (no coil surface) in the direction of the prevailing wind as shown
in the figure at right. In cooler climates, it may be beneficial to position the unit in direct sunlight to assist with defrost operations.
If the outdoor unit is not placed on a roof, place it on the leeward
side of the building or in a location where the unit will not be exposed to constant wind.
If placement exposes the unit to constant wind activity, construct a
wind break in front of the unit. Follow the placement guidelines set
forth in “Clearance Requirements”.
Figure 44: Prevailing Wind
Direction.
Prevailing Winds
Figure 45: Leeward Side of the
Building.
Prevailing
Winds
Figure 46: Wind Break.
Wall or Other Wind Break
Tie-Downs and Wind Restraints
The strength of the Vertical Air Handling Unit frames 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.
Prevailing Winds
Mounting Platform
The underlying structure or foundation must be designed to support the weight of the unit. Avoid placing
the unit in a low lying area where water may accumulate.
Oceanside Installation Precautions
Ocean winds may cause corrosion, particularly
on the condenser and evaporator fins, which, in
turn could cause product malfunction or inefficient
performance.
Figure 47: Oceanside Placement Using a Building as Shield, and Placement Using a
Windbreak.
Ocean winds
• Avoid installing the outdoor unit where it would
be directly exposed to ocean winds.
• Install the outdoor unit on the side of the building
opposite from direct ocean winds.
• Select a location with good drainage.
• Periodically clean dust or salt particles off of the
heat exchanger with water.
If the outdoor unit must be placed in a location
where it would be subjected to direct ocean winds,
install a concrete windbreaker strong enough to
block any winds. Windbreaker height and width
must be more than 150% of the outdoor unit, and
be installed at least 27-1/2 inches away from the
outdoor unit to allow for airflow.
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APPLICATION
Ocean winds
Windbreaker
Additional anti-corrosion treatment may
need to be applied to the outdoor unit at
oceanside locations.
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.
Ocean winds
CLEARANCES
Outdoor Unit
Minimum Clearance Requirements for Vertical Air Handling Unit ODUs
Proper clearance for the outdoor unit coil is critical for proper unit operation. When installing the outdoor unit, consider service, inlet and
outlet and minimum allowable space requirements as illustrated in the diagrams below and on the next few pages.
Minimum Clearance Requirements for LUU188HV, LUU248HV Outdoor Units
Specific clearance requirements in the diagram below are for 18,0000 Btu/h (LUU188HV),and 24,000 Btu/h (LUU248HV) systems. The following figure shows the overall minimum clearances that must be observed for safe operation and adequate airflow around the outdoor unit.
When placing the outdoor unit under an overhang, awning, sunroof or other “roof-like structure”, observe the clearance requirements (as
shown in Cases 1 and 2 for height in relation to the unit. This clearance ensures that heat radiation from the condenser is not restricted
around the unit.
Adhere to all clearance requirements if installing the unit on a roof. Be sure to level the unit and ensure that the unit is adequately anchored.
Consult local codes for rooftop mounting requirements.
To have successful service access to the outdoor unit, see the following figure for minimum spacing. When installing multiple outdoor units,
see Cases 4 and 5 for correct spacing requirements.
Application Guidelines
If the outdoor unit is installed between standard and minimum clearances, capacity decreases approximately 10%.
Figure 48: Outdoor Unit Service Access and Allowable Clearances Diagram.
Case 1
Case 2
ches
20 in
s
or les
Case 3
inch r less
1/16 inches o
02
G
G
A
D
D
B
C
C
Case 4
Case 5
Do not place the unit where animals
and/or plants will be in the path of the warm
air, or where the warm air and / or noise will
disturb neighbors.
D
F
B
E
B
Table 46: 24K Outdoor Unit Service Access and Allowable Clearances Diagram Legend.
Unit: Inch
A
B
C
Case 1
Case 2
Case 3
Case 4
Case 5
Standard
Minimum
Standard
Minimum
Standard
Minimum
Standard
Minimum
Standard
Minimum
12
4
-
24
10
24
10
20
14
20
14
-
D
D
12
4
12
4
12
4
12
4
E
24
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.
F
79
-
G
40
40
APPLICATION
|
75
CLEARANCES
Outdoor Unit
Minimum Clearance Requirements for LUU368HV, LUU428HV, LUU488HV Outdoor Units
• 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 immediately below here or
high and low system pressure problems may occur.
Figure 49: Improper Outdoor Unit Placement.
Legend
LR = Rear wall height
LF = Front wall height
H = Unit height
Figure 50: Proper Outdoor Unit Placement and Clearances.
Single Unit—High Front Wall with Building Overhang
and No Side Walls
Airflow
Single Unit—High Rear Wall and Low Front Wall
with No Side Walls
"
. 20
Max
LR < H
LF ≤ H
Min. 40"
Airflow
H
LF
LR
H
w
flo
Air
Figure 51: Proper Outdoor Unit Placement and Clearances, continued.
. 40
Min
"
. 4"
w
flo
Air
"
. 10
Min
Single Unit—High Rear and Front Walls with
No Side Walls
Single Unit—High Rear Wall with or
without High Side Walls
Min
"
. 20
Min
Side by Side—High Rear and Side Walls
LF ≥ H
H
Min.
4"
w
flo
Air
Min.
. 4"
Min
4"
Single Unit—High Rear and Side Walls with
Building Overhang
w
flo
Air
. 4"
Min
0"
40"
.2
Min
Min.
w
flo
Air
Single Unit—High Front and Rear Walls with
Building Overhang and No Side Walls
0"
Min.
Min.
Min.
4"
Single Unit—High Rear Wall and Low Front Wall
with Building Overhang and No Side Walls
"
. 20
"
Max
. 20
Max
.2
Max
4"
Min. 40"
LF
LF ≤ H
Min 40"
Min. 40"
Single Zone Vertical Air Handling Unit Engineering Manual
Figures below and on the next page illustrate clearance requirements for various installation scenarios for 38,000 Btu/h (LUU368HV), 42,000
Btu/h (LUU428HV), and 48,000 Btu/h (LUU488HV) outdoor units. Use the hot isle / cold isle 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. Place units back to back and face to
face.
H
Min.
6"
LF
w
flo
Air
Min.
76
|
4"
APPLICATION
. 6"
Min
w
flo
Air
w
flo
Air
Min.
20"
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"
. 12
"
. 40
Min
Min
12"
CLEARANCES
Outdoor Unit
Figure 52: Proper Outdoor Unit Placement and Clearances, continued.
Side by Side—High Rear and Side
Walls with Building Overhang
"
LR = Rear wall height
LF = Front wall height
H = Unit height
Min.
40"
Min.
4"
w
flo
Air
Min.
Min.
4"
12"
LR
w
flo
Air M
in. 4
Figure 53: Proper Outdoor Unit Placement and Clearances, continued.
Single Row Units—High Rear Wall and Low Front Wall with
No Side Walls or Overhang
Side by Side —High Front Wall with Building Overhang
and No Side or Rear Walls
M
"
LF ≤ H
Min. 40"
Min
Min.
8"
4"
LF
w
flo
Air
w
flo
Air
Double Row Units—Low Rear and Front Walls with No Side
Walls or Overhang
Min
. 4"
LR
. 4"
H
Min.
59"
Min
"
. 24
2"
"
M
19
in. 1
1
Min.
"
. 12
4"
Min
"
. 59
Min
"
Side by Side—High Rear Wall and Low Front Wall with Building
Overhang and No Side Walls
LF > H
Min
Min
. 40
Min
Side by Side—High Front and Rear Walls with No Side Walls
LR ≤ H
w
flo
Air
H
"
. 20
Max
LF ≤ H
Min. 40"
"
. 40
79"
Application Guidelines
w
flo
Air
Min.
Min.
"
. 12
Min
0"
in. 5
"
Side by Side—High Rear Wall and Low Front Wall with No Side Walls
. 20
Max
"
. 20
Max
LR < H
Min. 40"
. 20
Max
Legend
Side by Side—High Rear and Front Walls
with Building Overhang
Min. 40"
• Installation clearances must comply with local building codes.
• All figures not to scale.
H
H
LF
LF
w
flo
Air
Min
"
. 12
Min
4"
"
. 40
Min
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
4
"
"
. 12
"
. 59
Min
Min
APPLICATION
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77
INSTALLING OUTDOOR UNITS INDOORS
Single Zone Vertical Air Handling Unit Engineering Manual
Installing Outdoor Units Indoors
LG outdoor units are engineered to be mounted outdoors and include technology designed to minimize the negative effects of winter weather’s freezing rain, sleet, and snow. Some building projects, however, necessitate placing the HVAC outdoor units indoors:
• Lack of ground space.
• Lack of an appropriate outdoor location that meets system design requirements.
• When mounting on the roof is not an option due to a lack of roof space.
• Roof warranty will be voided if mechanical equipment is placed on the membrane.
• On retrofit projects, a former chiller / boiler / air handler equipment room, mechanical area, or penthouse already exists.
• Where a project has vertical, self-contained VAV air handlers on each floor (in lieu of a centralized mechanical room).
• To curtail the potential need for redundant zone heating devices such as wall-fin radiators or duct heaters.
• In extremely cold environments where there is a significant amount of run-time at temperatures well below freezing outside the outdoor unit
ambient air temperature range published in this engineering manual.
Benefits of Installing Outdoor Units Indoors
•
•
•
•
•
Shelters the outdoor unit from direct exposure to prevailing winds that decrease the heating capability of the outdoor unit.
Protects equipment from freezing precipitation and / or potential ice build-up that could hinder unit operation.
Maintains coil heat transfer efficiency by reducing the number of and shortening the cycle time for defrost operation.
Easier maintenance and servicing during inclement weather.
When mounted in a fully enclosed space, limiting the ambient air temperature may allow the system designer to eliminate oversizing the
outdoor unit to compensate for loss of capacity at low ambient temperatures.
• May also curtail the need to provide inefficient redundant zone heating devices such as wall-fin radiators and second-stage ancillary
heating devices.
Design Considerations Include:
•
•
•
•
Enclosure types and elements such as louvers, rain hoods, dampers and controls, heating methods and sizing of heating devices
Heating strategies
Duct design
Condensate handling
General Guidelines
• Follow ASHRAE 62.1 design guidelines.
• Depending on the project / application, a roof over the outdoor units in combination with a wind break may be all that is necessary.
• Consider the potential for snow accumulation near louvers / roof openings. Outside air intakes and discharge ducts/louvers must be engineered to clear anticipated snow accumulation levels by at least one (1) foot.
• In situations where operation is anticipated at temperatures of -13°F and lower, ancillary heat must be provided to heat the outdoor unit
coils to assure continuous compressor operation and heating.
It may be necessary to use an air guide accessory to prevent discharge air from short-cycling back to the coil inlet.
• Another option is to field manufacture ductwork and mount on top of the unit to encompass the outdoor unit fan discharge and connect to
the exterior discharge grille on the building.
• Avoid using a single duct on multi-fan units to prevent short cycling. Provide a dedicated duct for each outdoor unit fan discharge.
• Consider the direction of prevailing winds and opening placement. If possible, locate inlet openings upwind of discharge openings and other
exhaust outlets.
• When inlet and outlet openings are placed on the same wall, minimum distance between the two openings must be approximately three (3)
feet (minimum distance varies significantly with variations in outlet opening face velocity).
• If roof-mounted ventilation openings are used, strategically locate the inlet ventilation opening(s) upwind of the outlet opening(s).
• Discharge and supply ductwork must be designed to avoid weather related long periods of water entrainment and the potential for
microbial growth.
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APPLICATION
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INSTALLING OUTDOOR UNITS INDOORS
Provide a means to drain the condensate generated during heating mode and defrost cycle in addition to rainwater that infiltrates the inlet
louver enclosed area.
• Install a field-provided drain pan under the outdoor units and provide a path to a nearby floor drain.
• If the ambient air temperature is expected to drop below 32°F in the enclosure, heat the bottom surface of the pan, drain line, and floor
drain so that the condensate does not freeze before reaching the drain.
Allow for ventilation intake and exhaust air based on maximum outdoor unit fan capacity.
• Select the size, type and orientation of architectural louvers with adequate "net free area" face velocity to ensure the total external static
pressure from the outdoor unit fan does not exceed design limitations (see specification data tables).
•
No obstructions must be placed in front of the louver that could hamper the free flow (throw) of air.
• Roof top openings and / or discharge and supply louvers must be equipped with screens to prevent bird and insect infiltration.
As always, the best solution for each project balances acceptable heating performance (considering local weather conditions), capital costs,
life cycle energy consumption, and limitations set forth by local building codes.
Application Guidelines
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APPLICATION
|
79
REFRIGERANT PIPING DESIGN
Design Guideline Summary
Device Connection Limitations
A single-zone system consists of one outdoor unit and one indoor unit. One of the most critical elements of a single-zone system is the
refrigerant piping. The table below lists pipe length limits that must be followed in the design of a single-zone Vertical Air Handling Unit
refrigerant pipe system.
Table 47: Single-Zone Vertical Air Handling Unit Refrigerant Piping System Limitations.
Single Zone Vertical Air Handling Unit Engineering Manual
System Model Name
Pipe Length
(ELF = Equivalent
Length of Pipe in Feet)
LV180HV4, LV240HV4
LV360HV4, LV480HV, LV488HV
Longest total equivalent piping length
164 feet
246 feet
Shortest total equivalent piping length
Distance between fittings and indoor or
outdoor units
No additional refrigerant
If outdoor unit is above indoor unit
6.6 feet
6.6 feet
≥20 inches
≥20 inches
24.6 feet
98 feet
24.6 feet
98 feet
98 feet
98 feet
0.43
0.43
Elevation
(All Elevation Limitations are
If outdoor unit is below indoor unit
Measured in Actual Feet)
Additional Refrigerant Needed (oz/ft)
System Layout
Figure 54: Typical LV180HV4 and LV240HV4 System Layout.
Indoor Unit
Unit = Feet
Max. Length = A
Max. Elevation = B
164
164
A
A
98 B
B 98
Outdoor Unit
80
|
APPLICATION
Outdoor Unit
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.
REFRIGERANT PIPING DESIGN
Design Guideline Summary
System Layout
Figure 55: Typical LV360HV4, LV480HV and LV488HV System Layout.
Outdoor Unit
Indoor Unit
Unit = Feet
Max. Length = A
Max. Elevation = B
246
246
A
A
98 B
Outdoor Unit
Application Guidelines
B 98
Indoor Unit
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APPLICATION
|
81
20001747
ISO 9001: 2008
LG ELECTRONICS INC.
LG Electronics, U.S.A., Inc.
Air Conditioning Technologies
4300 North Point Parkway
Alpharetta, Georgia 30022
www.lghvac.com
LG Electronics Commercial Products Support
1-888-865-3026 USA
Follow the prompts for commercial A/C products.
EM_SZ_Vertical_Air_Handling_Unit_02_18
Supersedes: EM_SZ_Vertical_Air_Handling_Unit_12_17
EM_SZ_Vertical_Air_Handling_Unit_09_17
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