LG | ARUM160LTE5.EWGBLEU | Installation guide | LG ARUM120LTE5.EWGBLEU Owner's manual

LG ARUM120LTE5.EWGBLEU Owner's manual
1,MFL67221433,영어 2017. 7. 5. 오전 10:30 페이지 1
ENGLISH ITALIANO ESPAÑOL FRANÇAIS
INSTALLATION MANUAL
DEUTSCH
AIR
CONDITIONER
POLSKI
For Heat Pump / Heat Recovery system
Original instruction
www.lg.com
LIMBA ROMÂNĂ
[Representative] LG Electronics Inc. EU Representative : LG Electronics European Shared Service Center B.V.
Krijgsman 1, 1186 DM Amstelveen, The Netherlands
[Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-gu, Changwon-si,
Gyeongsangnam-do, KOREA
P/NO : MFL67221433
ČEŠTINA ΕΛΛΗΝΙΚΆ NEDERLANDS
Please read this installation manual completely before installing the product.
Installation work must be performed in accordance with the national wiring
standards by authorized personnel only.
Please retain this installation manual for future reference after reading it
thoroughly.
1,MFL67221433,영어 2017. 7. 5. 오전 10:30 페이지 2
2
ENGLISH
TIPS FOR SAVING ENERGY
Here are some tips that will help you minimize the power consumption
when you use the air conditioner. You can use your air conditioner
more efficiently by referring to the instructions below:
• Do not cool excessively indoors. This may be harmful for your health
and may consume more electricity.
• Block sunlight with blinds or curtains while you are operating the air
conditioner.
• Keep doors or windows closed tightly while you are operating the air
conditioner.
• Adjust the direction of the air flow vertically or horizontally to circulate
indoor air.
• Speed up the fan to cool or warm indoor air quickly, in a short period
of time.
• Open windows regularly for ventilation as the indoor air quality may
deteriorate if the air conditioner is used for many hours.
• Clean the air filter once every 2 weeks. Dust and impurities collected
in the air filter may block the air flow or weaken the cooling / dehumidifying functions.
! WARNING
• Installation or repairs made by unqualified
persons can result in hazards to you and
others.
• The information contained in the manual
is intended for use by a qualified service
technician familiar with safety procedures
and equipped with the proper tools and
test instruments.
• Failure to carefully read and follow all instructions in this manual can result in
equipment malfunction, property damage,
personal injury and/or death.
For your records
Staple your receipt to this page in case you need it to prove the date of
purchase or for warranty purposes. Write the model number and the serial number here:
Model number :
Serial number :
You can find them on a label on the side of each unit.
Dealer’s name :
Date of purchase :
IMPORTANT SAFETY INSTRUCTIONS
READ ALL INSTRUCTIONS BEFORE
USING THE APPLIANCE.
Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product
! WARNING
It can result in serious injury or death when
the directions are ignored
! CAUTION
It can result in minor injury or product damage when the directions are ignored
Installation
• Have all electric work done by a licensed
electrician according to "Electric Facility
Engineering Standard" and "Interior Wire
Regulations" and the instructions given in
this manual and always use a special circuit.
- If the power source capacity is inadequate or electric work is performed improperly, electric shock or fire may
result.
• Ask the dealer or an authorized technician
to install the air conditioner.
- Improper installation by the user may result in water leakage, electric shock, or
fire.
• Always ground the product.
- There is risk of fire or electric shock.
• Always intstall a dedicated circuit and
breaker.
- Improper wiring or installation may
cause fire or electric shock.
• For re-installation of the installed product,
always contact a dealer or an Authorized
Service Center.
- There is risk of fire, electric shock, explosion, or injury.
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• Do not store or use flammable gas or
combustibles near the air conditioner.
- There is risk of fire or failure of product.
• Use the correctly rated breaker or fuse.
- There is risk of fire or electric shock.
• Prepare for strong wind or earthquake
and install the unit at the specified place.
- Improper installation may cause the unit
to topple and result in injury.
• Do not install the product on a defective
installation stand.
- It may cause injury, accident, or damage
to the product.
• Use a vacuum pump or Inert(nitrogen)
gas when doing leakage test or air purge.
Do not compress air or Oxygen and do
not use Flammable gases. Otherwise, it
may cause fire or explosion.
- There is the risk of death, injury, fire or
explosion.
• When installing and moving the air conditioner to another site, do not charge it
with a different refrigerant from the refrigerant specified on the unit.
- If a different refrigerant or air is mixed
with the original refrigerant, the refrigerant cycle may malfunction and the unit
may be damaged.
• Do not reconstruct to change the settings
of the protection devices.
- If the pressure switch, thermal switch,
or other protection device is shorted and
operated forcibly, or parts other than
those specified by LGE are used, fire or
explosion may result.
• Ventilate before operating air conditioner
when gas leaked out.
- It may cause explosion, fire, and burn.
• Securely install the cover of control box
and the panel.
- If the cover and panel are not installed
securely, dust or water may enter the
outdoor unit and fire or electric shock
may result.
• If the air conditioner is installed in a small
room, measures must be taken to prevent the refrigerant concentration from
exceeding the safety limit when the refrigerant leaks.
- Consult the dealer regarding the appropriate measures to prevent the safety
limit from being exceeded. Should the
refrigerant leak and cause the safety
limit to be exceeded, harzards due to
lack of oxygen in the room could result.
Operation
• Do not damage or use an unspecified
power cord.
- There is risk of fire, electric shock, explosion, or injury.
• Use a dedicated outlet for this appliance.
- There is risk of fire or electrical shock.
• Be cautious that water could not enter
the product.
- There is risk of fire, electric shock, or
product damage.
• Do not touch the power switch with wet
hands.
- There is risk of fire, electric shock, explosion, or injury.
• When the product is soaked (flooded or
submerged), contact an Authorized Service Center.
- There is risk of fire or electric shock.
ENGLISH
• Do not install, remove, or re-install the
unit by yourself (customer).
- There is risk of fire, electric shock, explosion, or injury.
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ENGLISH
• Be cautious not to touch the sharp edges
when installing.
- It may cause injury.
• Take care to ensure that nobody could
step on or fall onto the outdoor unit.
- This could result in personal injury and
product damage.
• Do not open the inlet grille of the product
during operation. (Do not touch the electrostatic filter, if the unit is so equipped.)
- There is risk of physical injury, electric
shock, or product failure.
! CAUTION
Installation
• Always check for gas (refrigerant) leakage
after installation or repair of product.
- Low refrigerant levels may cause failure
of product.
• Do not install the product where the
noise or hot air from the outdoor unit
could damage the neighborhoods.
- It may cause a problem for your neighbors.
• Keep level even when installing the product.
- To avoid vibration or water leakage.
• Do not install the unit where combustible
gas may leak.
- If the gas leaks and accumulates around
the unit, an explosion may result.
• Use power cables of sufficient current
carrying capacity and rating.
- Cables that are too small may leak, generate heat, and cause a fire.
• Do not use the product for special purposes, such as preserving foods, works
of art, etc. It is a consumer air conditioner, not a precision refrigeration system.
- There is risk of damage or loss of property.
• Keep the unit away from children. The
heat exchanger is very sharp.
- It can cause the injury, such as cutting
the finger. Also the damaged fin may result in degradation of capacity.
• When installting the unit in a hospital,
communication station, or similar place,
provide sufficient protection against
noise.
- The inverter equipment, private power
generator, high-frequency medical
equipment, or radio communication
equipment may cause the air conditioner
to operate erroneously, or fail to operate. On the other hand, the air conditioner may affect such equipment by
creating noise that disturbs medical
treatment or image broadcasting.
• Do not install the product where it is exposed to sea wind (salt spray) directly.
- It may cause corrosion on the product.
Corrosion, particularly on the condenser
and evaporator fins, could cause product
malfunction or inefficient operation.
Operation
• Do not use the air conditioner in special
environments.
- Oil, steam, sulfuric smoke, etc. can significantly reduce the performance of the
air conditioner or damage its parts.
• Do not block the inlet or outlet.
- It may cause failure of appliance or accident.
• Make the connections securely so that
the outside force of the cable may not be
applied to the terminals.
- Inadequate connection and fastening
may generate heat and cause a fire.
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• Install and insulate the drain hose to ensure that water is drained away properly
based on the installation manual.
- A bad connection may cause water leakage.
• Be very careful about product transportation.
- Only one person should not carry the
product if it weighs more than 20 kg.
- Some products use PP bands for packaging. Do not use any PP bands for a
means of transportation. It is dangerous.
- Do not touch the heat exchanger fins.
Doing so may cut your fingers.
- When transporting the outdoor unit, suspending it at the specified positions on
the unit base. Also support the outdoor
unit at four points so that it cannot slip
sideways.
• Safely dispose of the packing materials.
- Packing materials, such as nails and
other metal or wooden parts, may cause
stabs or other injuries.
- Tear apart and throw away plastic packaging bags so that children may not play
with them. If children play with a plastic
bag which was not torn apart, they face
the risk of suffocation.
• Turn on the power at least 6 hours before
starting operation.
- Starting operation immediately after
turning on the main power switch can
result in severe damage to internal
parts. Keep the power switch turned on
during the operational season.
• Do not touch any of the refrigerant piping
during and after operation.
- It can cause a burn or frostbite.
• Do not operate the air conditioner with
the panels or guards removed.
- Rotating, hot, or high-voltage parts can
cause injuries.
• Do not directly turn off the main power
switch after stopping operation.
- Wait at least 5 minutes before turning
off the main power switch. Otherwise it
may result in water leakage or other
problems.
• Auto-addressing should be done in condition of connecting the power of all indoor
and outdoour units. Auto-addressing
should also be done in case of changing
the indoor unit PCB.
• Use a firm stool or ladder when cleaning
or maintaining the air conditioner.
- Be careful and avoid personal injury.
• Do not insert hands or other objects
through the air inlet or outlet while the air
conditioner is plugged in.
- There are sharp and moving parts that
could cause personal injury.
ENGLISH
• Be sure the installation area does not deteriorate with age.
- If the base collapses, the air conditioner
could fall with it, causing property damage, product failure, or personal injury.
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ENGLISH
TABLE OF CONTENTS
2
2
7
7
7
7
9
TIPS FOR SAVING ENERGY
IMPORTANT SAFETY INSTRUCTIONS
INSTALLATION PROCESS
OUTDOOR UNITS INFORMATION
ALTERNATIVE REFRIGERANT R410A
SELECT THE BEST LOCATION
INSTALLATION SPACE
9
Individual Installation
46
47
47
47
47
48
48
48
48
49
49
49
49
50
53 CAUTION FOR REFRIGERANT LEAK
9 LIFTING METHOD
10 INSTALLATION
53
53
10
10
10
12
54
54
The location of the Anchor bolts
Foundation for Installation
Preparation of Piping
Plumbing materials and storage methods
13 REFRIGERANT PIPING INSTALLATION
13
13
14
15
15
15
16
16
16
17
Precautions on Pipe connection / Valve operation
Connection of Outdoor units
Caution
Precautions on Pipe connection / Valve operation
Connection of Outdoor units
Installation procedure for HR unit
Installation of Outdoor Unit, HR Unit, Indoor Unit Refrigerant
Pipe
Type of HR Unit
Installation of Zoning Control
Caution
18 PIPE CONNECTIONS BETWEEN INDOOR
AND OUTDOOR UNIT
18
18
19
20
20
21
22
26
28
28
29
30
31
Preparation Work
Pipe Drawing Out during Single / Series connection
Refrigerant piping system
Preparation Work
Pipe Drawing Out during Single / Series connection
Refrigerant piping system
Pipe Connection Method between outdoor unit/indoor unit
Branch pipe Fitting
Distribution Method
Vacuum Mode
Leak Test and Vacuum drying
Refrigerant charging
Thermal insulation of refrigerant piping
32 ELECTRICAL WIRING
32
34
34
35
35
35
37
38
40
40
41
42
42
42
43
43
43
43
43
44
45
45
45
45
46
46
46
Caution
Control box and connecting position of wiring
Communication and Power Cables
Wiring of main power supply and equipment capacity
Point for attention regarding quality of the public electric power
supply
Field Wiring
Checking the setting of outdoor units
Switch for setup of HR Unit
Automatic Addressing
The Procedure of Automatic Addressing
Flow chart of auto pipe detection process
Flow chart of manual addressing for pipe detection
Example of manual valve addressing (Non-Zoning setting)
Example of manual valve addressing (Zoning setting)
Example of checking valve address
Identification of Manual Valve ID (Address)
Method of checking the pipe detection result at outdoor unit
Setting method of Master indoor unit in zoning
Group Number setting
Cool & Heat selector
High Static Pressure Compensation mode
Night Low Noise Function
Overall defrost mode
Setting the ODU address
Snow removal & rapid defrost
Setting Capacity Up Airflow Adjusting for IDU (Heating)
Target pressure adjusting
Low Ambient Kit
High Efficiency Mode (Cooling Operation)
Auto Dust Removal Mode
Compressor Max. Frequency Limit
ODU Fan Max. RPM Limit
SLC (Smart Load Control)
Humidity Reference
Central Control Connection at Indoor Unit side
Compressor Input Current Limit
Power Consumption Display on wired remote controller
Overall Defrost Operating in Low temperature (Heating)
Base pan Heater operation
Comfort Cooling operation
Self-Diagnosis Function
Introduction
Checking procedure of limiting concentration
54 INSTALLATION GUIDE AT THE SEASIDE
Model Designation
Airborne Noise Emission
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Determination of division work
Preparation of contract drawings
Sleeve and insert work
Indicate clearly who will be responsible for switch setting.
Make connection clearly between outdoor, indoor,
remote controller and option.
Take account of gradient
of drain piping
Outdoor unit foundation work
The foundation must be level even
Installation of indoor unit
Check model name to
make sure the fitting
is made correctly
Special attention to dryness,
cleanness and tightness
Drain pipe work
Adjust to downward gradient
Duct work
Make sure airflow is sufficient
Heat insulation work
Electrical work
(connection circuits and drive circuits)
Make sure no gaps are left where
the insulating materials are joined
Multiple core cable must not be used.
(suitable cable should be selected)
Airtight test
In the final check for 24hours at 3.8MPa (38.7 kgf/cm2)[551.1psi]
there must be no drop in pressure.
Vacuum drying
The vacuum pump used must have a capacity of reaching at least
5 torr, more than 1 hour
Additional charge of refrigerant
Recharge correctly as calculated in this manual. and record the
amount of added refrigerant
Fit facing panels
Make sure there are no gaps left between the facing materials
used on the ceiling
Automatic addressing of indoor unit
Test run adjustment
Transfer to customer with explanation
! CAUTION
Combination Ratio(50~200%)
Outdoor Number
Single outdoor units
Double outdoor units
Triple outdoor units
Over the triple unit
Connection Ratio
200%
160%
130%
130%
Installation of outdoor unit
Avoid short circuits and ensure
sufficient space is allowed for service
Refrigerant piping work
OUTDOOR UNITS INFORMATION
Refer to automatic addressing flowchart
Preheat the crank case with the electrical heater for more than 6 hours.
Run each indoor unit in turn to make sure the pipe work
has been fitted correctly
Explain the use of the system as clearly as possible to your customer and
make sure all relevant documentation is in order
! CAUTION
• The above list indicates the order in which the individual work
operations are normally carried out but this order may be varied
where local conditions warrants such change.
• The thickness of the piping should comply with the relevant
local and national regulations for the designed pressure 3.8 MPa
(551.1 psi).
• Since R410A is a mixed refrigerant, the required additional refrigerant must be charged in its liquid state.(If the refrigerant is
charged in its gaseous state, its composition changes and the
system will not work properly.)
Notes : * We can guarantee the operation only within 130%
combination. If you want to connect more than 130%
combination, please contact us and discuss the requirement like below.
• If the operation of indoor unit is more than 130%, the airflow is
operated as low in the all indoor units.
ALTERNATIVE REFRIGERANT R410A
The refrigerant R410A has the property of higher operating pressure in
comparison with R22.
Therefore, all materials have the characteristics of higher resisting
pressure than R22 ones and this characteristic should also be considered during the installation.
R410A is an azeotrope of R32 and R125 mixed at 50:50, so the ozone
depletion potential (ODP) of R410A is 0.
! CAUTION
• The wall thickness of the piping should comply with the relevant
local and national regulations for the designed pressure 3.8MPa
[551.1psi]
• Since R410A is a mixed refrigerant, the required additional refrigerant must be charged in its liquid state.
If the refrigerant is charged in its gaseous state, its composition
changes and the system will not work properly.
• Do not place the refrigerant container under the direct rays of
the sun to prevent it from exploding.
• For high-pressure refrigerant, any unapproved pipe must not be
used.
• Do not heat pipes more than necessary to prevent them from
softening.
• Be careful not to install wrongly to minimize economic loss because it is expensive in comparison with R22.
SELECT THE BEST LOCATION
Select space for installing outdoor unit, which will meet the following
conditions:
• No direct thermal radiation from other heat sources
• No possibility of annoying neighbors due to noise of unit
• No exposition to strong wind
• With strength which bears weight of unit
• Note that drain flows out of unit when heating
• Because of the possibility of fire, do not install unit to the space
where generation, inflow, stagnation, and leakage of combustible gas
is expected.
ENGLISH
INSTALLATION PROCESS
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• Do not use unit under any special environment where oil, steam and
sulfuric gas exist.
More than 100 (3-15/16)
(Servicing space)
• It is recommended to fence round the outdoor unit in order to prevent any person or animal from accessing the outdoor unit.
• If installation site is area of heavy snowfall, then the following directions should be observed.
- Make the foundation as high as possible.
- Fit a snow protection hood.
More than
300 (11-13/16)
More than
300 (11-13/16)
(Servicing space)
(Servicing space)
• Select installation location considering following conditions to avoid
bad condition when additionally performing defrost operation.
- Install the outdoor unit at a place well ventilated and having a lot of
sunshine in case of installing the product at a place With a high humidity in winter (near beach, coast, lake, etc.)
(Ex : Rooftop where there is always sunshine.)
More than 100 (3-15/16)
(Servicing space)
More than
300 (11-13/16)
124 (4-7/8)
61
(2-13/32)
419 (16-1/2)
345 (13-19/32)
137
(5-13/32)
Description
Part Name
PRHR042, PRHR042A
PRHR022, PRHR022A
PRHR032, PRHR032A
1
Low pressure Gas
Ø28.58 (1-1/8) Brazpipe connection port ing connection
Ø22.2 (7/8) Brazing
connection
2
High pressure Gas
Ø22.2 (7/8) Brazing
pipe connection port connection
Ø19.05 (3/4) Brazing
connection
3
Liquid pipe connection port
2
Ø15.88 (5/8) Brazing
connection (PRHR042,
PRHR042A)
Ø9.52 (3/8) Brazing
connection
Ø12.7 (1/2) Brazing
connection (PRHR032,
PRHR032A)
3
450 (17-23/32)
5
[Unit: mm(inch)]
481 (18-15/16)
Inspection door
(servicing space)
4
128 (5-1/32)
6
No.
1
(Servicing space)
(Servicing space)
Select installation location of the HR unit suitable for following conditions
- Avoid a place where rain may enter since the HR unit is for indoor.
- Sufficient service space must be obtained.
- Refrigerant pipe must not exceed limited length.
- Avoid a place subject to a strong radiation heat from other heat
source.
- Avoid a place where oil spattering, vapor spray or high frequency
electric noise is expected.
- Install the unit at a place in which it is not affected by operation noise.
(Installation within cell such as meeting room etc. may disturb business due to noise.)
- Place where refrigerant piping, drain piping and electrical wiring
works are easy.
7
More than
450 (17-23/32)
30
60
(1-3/16) (2-3/8)
For Heat Recovery Installation
4
Indoor unit Gas pipe Ø15.88 (5/8) Brazing Ø15.88 (5/8) Brazing
connection port
connection
connection
5
Indoor unit Liquid
Ø9.52 (3/8) Brazing
pipe connection port connection
Ø9.52 (3/8) Brazing
connection
6 Control box
-
-
7 Hanger metal
M10 or M8
M10 or M8
450 (17-23/32)
182
(7-5/32)
218 (8-19/32)
ENGLISH
• Avoid unit installation in a place where acidic solution and spray (sulfur) are often used.
174
(6-27/32)
453 (17-27/32)
174
(6-27/32)
More than 100 (3-15/16)
(Servicing space)
!
NOTE
• Be sure to install the inspection door at the control box side.
• If reducers are used, servicing space must be increased equal to
reducer's dimension.
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Individual Installation
During the installation of the unit, consider service, inlet, and outlet
acquire the minimum space as shown in the figures below.
[Unit : mm (inch)]
Category
Installation Space
E
D
F
G
Front
E
D
H
H
F
Front
G
E
4 sides
are
walls
D
H
F
I
Front
Front
G
Front
Front
E
D
H
I
F
Front
Front
G
E
F
I
G
Front
E
Front
D
F
I
G
Front
E
Front
D
Front
Front
H
Front
H
F
I
Front
Front
E
Front
No limit for the
height of wall
D
Only 2
sides
are
walls
Case 2
(Side Space
≥49(13/14))
A≥10 (13/32)
B≥300 (11-13/16)
C≥10 (13/32)
D≥500 (19-11/16)
A≥50 (1-31/32)
B≥100 (3-15/16)
C≥50 (1-31/32)
D≥500(19-11/16)
A≥10 (13/32)
B≥300 (11-13/16)
C≥10 (13/32)
D≥500 (19-11/16)
E≥20 (25/32)
A≥50 (1-31/32)
B≥100 (3-15/16)
C≥50 (1-31/32)
D≥500 (19-11/16)
E≥100 (3-15/16)
A≥10 (13/32)
B≥300 (11-13/16)
C≥10 (13/32)
D≥500 (19-11/16)
E≥20 (25/32)
F≥600 (23-5/8)
A≥50 (1-31/32)
B≥100 (3-15/16)
C≥50 (1-31/32)
D≥500 (19-11/16)
E≥100 (3-15/16)
F≥500 (19-11/16)
LIFTING METHOD
A≥10 (13/32)
B≥300 (11-13/16)
C≥10 (13/32)
D≥300 (11-13/16)
E≥20 (25/32)
F≥500 (19-11/16)
A≥50 (1-31/32)
B≥100 (3-15/16)
C≥50 (1-31/32)
D≥100 (3-15/16)
E≥100 (3-15/16)
F≥500 (19-11/16)
• When carrying the suspended, unit pass the ropes under the unit and
use the two suspension points each at the front and rear.
• Always lift the unit with ropes attached at four points so that impact
is not applied to the unit.
• Attach the ropes to the unit at an angle of 40° or less.
A≥10 (13/32)
B≥500 (19-11/16)
C≥10 (13/32)
D≥500 (19-11/16)
F≥900 (35-7/16)
A≥50 (1-31/32)
B≥500 (19-11/16)
C≥50 (1-31/32)
D≥500 (19-11/16)
F≥600 (23-5/8)
A≥10 (13/32)
B≥500 (19-11/16)
C≥10 (13/32)
D≥500 (19-11/16)
E≥20 (25/32)
F≥1200 (47-1/4)
A≥50 (1-31/32)
B≥500 (19-11/16)
C≥50 (1-31/32)
D≥500 (19-11/16)
E≥100 (3-15/16)
F≥900 (35-7/16)
A≥10 (13/32)
B≥500 (19-11/16)
C≥10 (13/32)
D≥500 (19-11/16)
E≥20 (25/32)
F≥1800 (70-7/8)
A≥50 (1-31/32)
B≥500 (19-11/16)
C≥50 (1-31/32)
D≥500 (19-11/16)
E≥100 (3-15/16)
F≥1200 (47-1/4)
A≥10 (13/32)
B≥300 (11-13/16)
Front
E
D
No limit for the height of wall
H
H
A≥200 (7-7/8)
B≥300 (11-13/16)
E≥400 (15-3/4)
500
(19-11/16’’)
Front
h2
B
Inlet
side
45° or
more
500 500500500500
500500
50
(19-11/16’’)
(19-11/16’’)
(19-11/16’’)
(19-11/16’’)
(19-11/16’’)
(19-11/16’’)
(19-11/16’’)
A
1500 (59)
h1
Limitations
on the
height
of the
wall
(Refer
to 4
side
walls)
- The height of H frame must be more than 2 times the snowfall
and its width shall not exceed the width of the product. (If width
of the frame is wider than that of the product, snow may accumulate)
- Don't install the suction hole and discharge hole of the Outdoor
Unit facing the seasonal wind.
Locking points for
transportation ropes
Front
H
G
Case 1
(10(13/32)≤Side
Space≤49(13/14))
Front
D
Rear
to
Rear
Seasonal wind and cautions in winter
• Sufficient measures are required in a snow areas or severe cold
areas in winter so that product can be operated well.
• Get ready for seasonal wind or snow in winter even in other areas.
• Install a suction and discharge duct not to let in snow or rain.
• Install the outdoor unit In such a way that it should not come in contact with snow directly. If snow piles up and freezes on the air suction hole, the system may malfunction. If it is installed at snowy area,
attach the hood to the system.
• Install the outdoor unit at the higher installation console by 50 cm
(19.7 inch) than the average snowfall (annual average snowfall) if it is
installed at the area with much snowfall.
• Where snow accumulated on the upper part of the Outdoor Unit by
more than 10 cm (3.9 inch), always remove snow for operation.
Front
side
240
(9-1/2’’)
or more
50 (2) or more
• The height of the wall on the front side must
be 1500 mm (59 inch) or less.
• The height of the wall on the inlet side must
be 500 mm (19-11/16 inch) or less.
• There is no limit to the wall on the side.
• If the height of the walls on the front and the
side are higher than the limit, there must be
additional space on the front and the side.
- Additional Space on the front side by 1/2 of h1
- Additional Space on the inlet side by 1/2 of h2
- h1 = A(Actual height) - 1500 mm (59 inch)
- h2 = B(Actual height) - 500 mm (19-11/16 inch)
Forklift Carrying Hole
Forklift Carrying Guide
! CAUTION
Be very careful while carrying the product.
• Do not have only one person carry product if it is more than 20
kg (44lbs).
• PP bands are used to pack some products. Do not use them as
a mean for transportation because they are dangerous.
• Do not touch heat exchanger fins with your bare hands. Otherwise you may get a cut in your hands.
• Tear plastic packaging bag and scrap it so that children cannot
play with it. Otherwise plastic packaging bag may suffocate children to death.
• When carrying in Outdoor Unit, be sure to support it at four
points. Carrying in and lifting with 3-point support may make
Outdoor Unit unstable, resulting in a fall.
• Use 2 belts of at least 8 m (26.2 ft) long.
• Place extra cloth or boards in the locations where the casing
comes in contact with the sling to prevent damage.
• Hoist the unit making sure it is being lifted at its center of gravity.
ENGLISH
INSTALLATION SPACE
1,MFL67221433,영어 2017. 7. 5. 오전 10:30 페이지 10
10
Outdoor units
should not be
supported only by
the corner supports.
Ⓐ The corner part must be fixed firmly. Otherwise, the support for the
installation may be bent.
Ⓑ Get and use M10 Anchor bolt.
Ⓒ Put Cushion Pad between the outdoor unit and ground support for
the vibration protection in wide area.
Ⓓ Space for pipes and wiring (Pipes and wirings for bottom side)
Ⓔ H-beam support
Ⓕ Concrete support
m
00m
ast 1 inch)
e
l
m
t
A /16
00m
5
ast 1 inch)
(3-1
e
l
t
A /16
5
(3-1
75(2.95)
! WARNING
Center of the Unit
m
00m
ast 1 h)
At le /16 inc
5
(3-1
m
00m
ast 1 inch)
e
l
t
0mm
A /16
t 10
5
(3-1 At leas 6 inch)
1
5/
(3-1
200(7.87)
m
00m
ast 1 inch)
e
l
t
A /16
5
(3-1
200(7.87)
Unit : mm (inch)
100(3.94)
75(2.95)
• Install at places where it can endure the weight and vibration/noise
of the outdoor unit.
• The outdoor unit support blocks at the bottom shall have width of at
least 100 mm (3-15/16 inch) under the Unit’s legs before being fixed.
• The outdoor unit support blocks should have minimum height of
200 mm (7-7/8 inch).
• Anchor bolts must be inserted at least 75 mm (2-15/16 inch).
Center of the Unit
• Install where it can sufficiently support the weight of the outdoor unit.
If the support strength is not enough, the outdoor unit may drop
and hurt people.
• Install where the outdoor unit may not fall in strong wind or
earthquake.
If there is a fault in the supporting conditions, the outdoor unit
may fall and hurt people.
• Please take extra cautions on the supporting strength of the
ground, water outlet treatment(treatment of the water flowing
out of the outdoor unit in operation), and the passages of the
pipe and wiring, when making the ground support.
• Do not use tube or pipe for water outlet in the Base panel. Use
drainage instead for water outlet. The tube or pipe may freeze
and the water may not be drained.
The location of the Anchor bolts
760 (29-29/32)
731 (28-25/32)
At least
At least
65 (2-9/16) 65 (2-9/16)
65
(2-9/16)
Unit : mm (inch)
65
(2-9/16)
ENGLISH
INSTALLATION
Chassis
A [mm (inch)]
B [mm (inch)]
UXA
UXB
930 (36-5/8)
1240 (47-1/4)
730 (28-3/4)
1040 (40-15/16)
Foundation for Installation
• Fix the unit tightly with bolts as shown below so that unit will not fall
down due to earthquake or gust.
• Use the H-beam support as a base support
• Noise and vibration may occur from the floor or wall since vibration is
transferred through the installation part depending on installation status. Thus, use anti-vibration materials (cushion pad) fully (The base
pad shall be more than 200 mm (7-7/8 inch)).
! CAUTION
• Be sure to remove the Pallet(Wood Support) of the bottom side
of the outdoor unit Base panel before fixing the bolt. It may
cause the unstable state of the outdoor settlement, and may
cause freezing of the heat exchanger resulting in abnormal operations.
• Be sure to remove the Pallet(Wood Support) of the bottom side
of the outdoor unit before welding. Not removing Pallet(Wood
Support) causes hazard of fire during welding.
Pallet(Wood Support)
- Remove before Installation
Preparation of Piping
Main cause of gas leakage is defect in flaring work. Carry out correct
flaring work in the following procedure.
Cut the pipes and the cable
- Use the accessory piping kit or the pipes purchased locally.
- Measure the distance between the indoor and the outdoor unit.
- Cut the pipes a little longer than measured distance.
- Cut the cable 1.5 m (4.92 ft) longer than the pipe length.
Pipe
Copper
tube
Reamer
90°
Slanted Uneven Rough
Point down
At least
200 (7.87)
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 11
11
"A"
1 Remove the cap and turn the valve counter clockwise with the
hexagon wrench.
2 Turn it until the shaft stops.
Handle
Bar
Opening shutoff valve
Do not apply excessive force to the shutoff valve. Doing so may
break the valve body, as the valve is not a backseat type. Always
use the special tool.
Bar
Yoke
Cone
3 Make sure to tighten the cap securely.
Copper pipe
Clamp handle
Red arrow mark
Closing shutoff valve
1 Remove the cap and turn the valve clockwise with the hexagon
Flaring work
- Carry out flaring work using flaring tool as shown below.
Pipe(mm(inch))
Indoor unit
[kW(Btu/h)]
Gas
Liquid
<5.6(19,100) Ø12.7 (1/2) Ø6.35 (1/4)
<16.0(54,600) Ø15.88 (5/8) Ø9.52 (3/8)
<22.4(76,400) Ø19.05 (3/4) Ø9.52 (3/8)
wrench.
‘A’(mm(inch))
Gas
Liquid
0.5~0.8 (0.02~0.03)
0~0.5 (0~0.02)
0.8~1.0 (0.03~0.04) 0.5~0.8 (0.02~0.03)
1.0~1.3 (0.04~0.05) 0.5~0.8 (0.02~0.03)
2 Securely tighten the valve until the shaft contacts the main body seal.
3 Make sure to tighten the cap securely.
* For the tightening torque, refer to the table on the below.
Tightening torque
Firmly hold copper tube in a bar(or die) as indicated dimension in the
table above.
Check
- Compare the flared work with figure below.
- If flare is noted to be defective, cut off the flared section and do flaring work again.
Shut
off
valve
size
(mm
(inch))
Tightening torque N.m (lbs.ft) (Turn clockwise to close)
Shaft
(valve body)
Closed
Opened
Ø6.35
(1/4)
6.0±0.6
Ø9.52 (4.4±0.4)
(3/8)
Smooth all round
Inside is shining without scratches.
Cap
Service
port
Hexagonal (Valve lid)
wrench
4 mm
(0.16 inch)
Ø12.7 10.0±1.0
(1/2) (7.4±0.7)
= Improper flaring =
Gas line
piping
Flare nut attached
to unit
16±2
(12±1.5)
17.6±2.0
(13.0±1.5)
38±4
(28±3.0)
20.0±2.0
(14.8±1.5)
55±6
(41±4.4)
-
Even length
all round
Ø15.88 12.0±1.2
(5/8) (8.9±0.9)
Inclined Surface Cracked Uneven
damaged
thickness
5.0±0.0
(3.7±0.4)
Ø19.05 14.0±1.4
(3/4) (10.3±1.0)
Ø22.2
(7/8) 30.0±3.0
Ø25.4 (22.1±2.2)
(1)
Flare shape and flare nut tightening torque
Precautions when connecting pipes
- See the following table for flare part machining dimensions.
- When connecting the flare nuts, apply refrigerant oil to the inside and
outside of the flares and turn them three or four times at first. (Use
ester oil or ether oil.)
- See the following table for tightening torque.(Applying too much torque may
cause the flares to crack.)
- After all the piping has been connected, use nitrogen to perform a
gas leak check.
Pipe size
[mm (inch)]
Tightening Torque
N.m (lbs.ft)
A [mm (inch)]
Flare shape
Ø9.52 (3/8)
38±4 (28±3.0)
12.8 (0.5)~13.2 (0.52)
90° ±2
A
Ø12.7 (1/2)
55±6 (41±4.4)
16.2 (0.64)~16.6 (0.65)
Ø15.88 (5/8)
75±7 (55±5.2)
19.3 (0.76)~19.7(0.78)
45
°
±2
R=0.4~0.8
! CAUTION
• Always use a charge hose for service port connection.
• After tightening the cap, check that no refrigerant leaks are present.
• When loosening a flare nut, always use two wrenches in
combination, When connecting the piping,
always use a spanner and torque wrench
in combination to tighten the flare nut.
Union
• When connecting a flare nut, coat the
flare(inner and outer faces) with oil for
R410A(PVE) and hand tighten the nut
3 to 4 turns as the initial tightening.
12.7±2
(9.4±1.5)
5 mm
(0.24 inch)
25.0±2.5
(18.4±1.8)
75±7
(55±5.1)
110±10
(81.1±7.4)
8 mm
(0.31 inch)
25±3
(18.5±2.2)
Insulation of shutoff valve
1
Use the heat insulation material for the refrigerant piping which has
an excellent heat-resistance (over 120 °C [248 °F]).
2
Precautions in high humidity circumstance:
This air conditioner has been tested according to the "ISO Conditions with Mist" and confirmed that there is not any default. However, if it is operated for a long time in high humid atmosphere
(dew point temperature: More than 23 °C [73.4 °F]), water drops
are liable to fall. In this case, add heat insulation material according
to the following procedure:
- Heat insulation material to be prepared:
EPDM (Ethylene Propylene Diene Methylene)-over 120 °C
[248 °F] the heat-resistance temperature.
- Add the insulation over 10 mm [0.39 inch] thickness at high humidity environment.
Fastening band
(accessory)
Refrigerant piping
Indoor unit
Thermal insulator
(accessory)
ENGLISH
Burrs removal
- Completely remove all burrs from the cut cross section of pipe/tube.
- Put the end of the copper tube/pipe to downward direction as you remove burrs in order to avoid to let burrs drop in the tubing.
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 12
12
Nitrogen substitution method
Pipe must be able to obtain the specified thickness and should be
used with low impurities.
Also when handling storage, pipe must be careful to prevent a fracture, deformity and wound.
Should not be mixed with contaminations such as dust, moisture.
Welding, as when heating without nitrogen substitution a large
amount of the oxide film is formed on the internal piping.
The oxide film is a caused by clogging EEV, Capillary, oil hole of accumulator and suction hole of oil pump in compressor.
It prevents normal operation of the compressor.
In order to avoid this problem, Welding should be done after replacing
air by nitrogen gas.
When welding plumbing pipe, the work is required.
Regulator
Welding Point
Refrigerant piping on three principles
Items
Drying
Cleanliness
Airtight
Should be no moisture
inside
No dust inside.
There is no refrigerant
leakage
Moisture
Dust
Nitrogen gas
Pressure 0.02 MPa
(2.9 psi) less
Oxide scale
Note) should not block the outlet side.
When the internal pressure in pipe is abo
ve the atmospheric pressure, pinhole is
occurred and it is a leakage cause.
Taping
(Should not
contain air)
Auxiliary valve
Nitrogen
ENGLISH
Plumbing materials and storage methods
Leakage
- Significant hydrolysis of refrigerant oil
- Degradation of refrigerant oil
Cause - Poor insula’tion of
failure the compressor
- Do not cold and
warm
- Clogging of EEV,
Capillary
- Degradation of refrigerant oil
- Poor insulation of
the compressor
- Do not cold and
warm
- Clogging of EEV,
Capillary
- Gas shortages
- Degradation of refrigerant oil
- Poor insulation of
the compressor
- Do not cold and
warm
- No moisture in the pipe
- Until the connection is completed,
the plumbing pipe
entrance should be
strictly controlled.
- Stop plumbing at
rainy day.
Coun- - Pipe entrance
termea- should be taken
side or bottom.
sure
- When removal burr
after cutting pipe, pipe
entrance should be
taken down.
- Pipe entrance
should be fitted cap
when pass through
the walls.
- No dust in the pipe.
- Until the connection is completed,
the plumbing pipe
entrance should be
strictly controlled.
- Pipe entrance
should be taken
side or bottom.
- When removal burr
after cutting pipe,
pipe entrance
should be taken
down.
- Pipe entrance
should be fitted cap
when pass through
the walls.
- Airtightness test
should be.
- Brazing operations
to comply with
standards.
- Flare to comply
with standards.
- Flange connections
to comply with
standards.
! CAUTION
• Always use the nitrogen.(not use oxygen, carbon dioxide, and a
Chevron gas): Please use the following nitrogen pressure 0.02 MPa
(2.9 psi) Oxygen - Promotes oxidative degradation of refrigerant oil.
Because it is flammable, it is strictly prohibited to use Carbon dioxide - Degrade the drying characteristics of gas Chevron Gas - Toxic
gas occurs when exposed to direct flame.
• Always use a pressure reducing valve.
• Please do not use commercially available antioxidant.
The residual material seems to be the oxide scale is observed. In
fact, due to the organic acids generated by oxidation of the alcohol contained in the anti-oxidants, ants nest corrosion occurs.
(causes of organic acid → alcohol + copper + water + temperature)
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 13
13
Connection of Outdoor units
When installing ODU series, refer below picture.
For Heat Pump System Installation
A
B
(Master)
Precautions on Pipe connection / Valve operation
C
(Slave1)
D
(Slave2)
(Slave3)
Pipe connection is done by connecting from the end of the pipe to the
branching pipes, and the refrigerant pipe coming out of the outdoor
unit is divided at the end to connect to each indoor unit. Flare connection for the indoor unit, and welding connection for the outdoor pipe
and the branching parts.
- Use hexagonal wrench to open/close the valve.
h In case of the heat pump system installation, be sure to maintain to
close no use pipe like below picture.
h Refer to the accessory installation manual provided.
Service Port
A≥B≥C≥D (Capability)
① IDU side connection pipe
② ODU to ODU connection pipe (1st branch)
③ ODU to ODU connection pipe (2st branch)
④ ODU to ODU connection pipe (3rd brach)
2, 3, 4 Outdoor Units
Outdoor units
Model
Liquid Pipe
Gas Pipe
Liquid pipe
I.D. 19.05
O.D.15.88
No Use
(Weld with supplied
accessory pipe cap)
I.D.22.2 O.D. 28.58 I.D.34.9
331
314
I.D.15.88
C
C
2 Unit
ARCNN21
416
408
I.D.15.88
I.D.28.58
I.D.12.7 I.D.9.52
I.D.19.05
I.D.22.2 O.D.19.05
I.D.12.7
I.D.41.3 I.D.38.1 O.D.34.9
I.D.28.58
I.D.9.52
O.D.12.7
70
130
O.D.15.88
C
I.D.15.88
I.D.22.2 O.D.28.58
I.D. 19.05
O.D.34.9 I.D.28.58
O.D.19.05
I.D.15.88
111
I.D.22.2
I.D.31.8 I.D.34.9
C
Gas pipe
I.D.28.58
83
I.D.12.7
O.D.19.05
I.D.41.3
I.D.34.9
O.D.34.9
I.D.22.2
125
334
281
341
298
C
ARCNN31
3 Unit
83
I.D.19.05
I.D.22.2 I.D.19.05
I.D.34.9
I.D.41.3
I.D.15.88 I.D.12.7
C
! WARNING
• Always careful not to leak the refrigerant during welding.
• The refrigerant generates poisonous gas harmful to human body
if combusted.
• Do not perform welding in a closed space.
• Be sure to close the cap of the service port to prevent gas leakage after the work.
111
I.D.28.58
I.D.53.98 I.D. 44.5 O.D.41.3
I.D.28.58 O.D.22.2
O.D.15.88
O.D.19.05 I.D.22.2
I.D.19.05
I.D.28.58
I.D.22.2 O.D.28.58
O.D.41.3 I.D.44.5
334
281
A
4 Unit
ARCNN41
I.D.34.9
I.D.53.98
415
375
83
I.D.19.05
I.D.22.2 I.D.19.05
I.D.41.3
I.D.44.48 I.D.53.98
134
C
I.D.15.88 I.D.12.7
I.D.31.8 I.D.28.58 O.D.22.2
I.D.28.58
O.D.15.88
I.D.19.05
I.D.22.2 O.D.28.58 I.D.34.9
For more information, refer accessory installation manual.
! CAUTION
Please block the pipe knock outs of the front and side panels after
installing the pipes.
(Animals or foreign objects may be brought in to damage wires.)
Y branch
A
A To outdoor unit
B To branch piping or indoor unit
Within +/- 10
B
Viewed from point A
in direction of arrow
ENGLISH
REFRIGERANT PIPING INSTALLATION
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 14
14
ENGLISH
Caution
9 The Multi V will stop due to an abnormality like excessive or insuffi-
1 Use the following materials for refrigerant piping.
- Material: Seamless phosphorous deoxidized copper pipe
- Wall thickness : Comply with the relevant local and national regulations for the designed pressure 3.8 MPa (551 psi).
We recommend the following table as the minimum wall thickness.
Outer diameter 6.35 9.52 12.7 15.88 19.05 22.2 25.4 28.58 31.8 34.9 38.1 41.3 44.45 53.98
[mm(inch)] (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)
Minimum thick- 0.8 0.8 0.8 0.99 0.99 0.99 0.99 0.99 1.1 1.21 1.35 1.43 1.55 2.1
ness [mm(inch)] (0.03) (0.03) (0.03) (0.04) (0.04) (0.04) (0.04) (0.04) (0.04) (0.05) (0.05) (0.06) (0.06) (0.08)
2 Commercially available piping often contains dust and other materials. Always blow it clean with a dry inert gas.
3 Use care to prevent dust, water or other contaminants from entering
the piping during installation.
4 Reduce the number of bending portions as much as possible, and
make bending radius as big as possible.
5 Always use the branch piping set shown below, which are sold sep-
cient refrigerant. At such a time, always properly charge the unit.
When servicing, always check the notes concerning both the piping
length and the amount of additional refrigerant.
10 Never perform a pump down. This will not only damage the compressor but also deteriorate the performance.
11 Never use refrigerant to perform an air purge. Always evacuate air
by using a vacuum pump.
12 Always insulate the piping properly. Insufficient insulation will result in a decline in heating/cooling performance, drip of condensate
and other such problems.
13 When connecting the refrigerant piping, make sure the service
valves of the Outdoor Unit is completely closed (the factory setting) and do not operate it until the refrigerant piping for the Outdoor and Indoor Units has been connected, a refrigerant leakage
test has been performed and the evacuation process has been
completed.
14 Always use a non-oxidizing brazing material for brazing the parts
and do not use flux. If not, oxidized film can cause clogging or damage to the compressor unit and flux can harm the copper piping or
refrigerant oil.
arately.
! WARNING
Header
Y branch
4 branches 7 branches 10 branches
ARBLB01621, ARBLB03321,
ARBLB07121, ARBLB14521,
ARBLB23220
ARBL054
ARBL057
ARBL1010
ARBL104
ARBL107
ARBL2010
6 If the diameters of the branch piping of the designated refrigerant
piping differs, use a pipe cutter to cut the connecting section and
then use an adapter for connecting different diameters to connect
the piping.
7 Always observe the restrictions on the refrigerant piping (such as
rated length, difference in height, and piping diameter).
Failure to do so can result in equipment failure or a decline in heating/cooling performance.
8 A second branch cannot be made after a header. (These are shown
by .)
A
A To Outdoor Unit
B Sealed Piping
A
B
When installing and moving the air conditioner to another site, be
sure to make recharge refrigerant after perfect evacuation.
• If a different refrigerant or air is mixed with the original refrigerant, the refrigerant cycle may malfunction and the unit may be
damaged.
• After selecting diameter of the refrigerant pipe to suit total capacity of the indoor unit connected after branching, use an appropriate branch pipe set according to the pipe diameter of the
indoor unit and the installation pipe drawing.
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 15
15
Outdoor units
Precautions on Pipe connection / Valve operation
Model
Low Pressure Gas Pipe
Liquid Pipe
I.D.22.2 O.D. 28.58 I.D.34.9
Pipe connection is done by connecting from the end of the pipe to the
branching pipes, and the refrigerant pipe coming out of the outdoor
unit is divided at the end to connect to each indoor unit. Flare connection for the indoor unit, and welding connection for the outdoor pipe
and the branching parts.
I.D.28.58
C
2 Unit
ARCNB21
I.D.15.88
I.D.28.58
I.D.19.05
I.D.12.7 I.D.9.52
I.D.19.05
I.D.28.58
83
I.D.12.7
I.D.15.88
I.D.28.58
I.D.9.52
O.D.12.7
70
130
O.D.28.58
I.D.22.2 O.D.28.58
O.D.34.9 I.D.28.58
I.D. 19.05
I.D.22.2
I.D.34.9
O.D.15.88
I.D. 19.05
O.D.34.9
I.D.41.3
- Use hexagonal wrench to open/close the valve.
O.D.19.05
125
I.D.15.88
I.D.12.7
341
298
O.D.19.05
I.D.22.2 O.D.28.58
I.D.22.2
ARCNB31
I.D.34.9
I.D.41.3
I.D.28.58
I.D.28.58
I.D.19.05
I.D.22.2 I.D.19.05
83
111
I.D.22.2
I.D.31.8 I.D.34.9
111
I.D.34.9
416
408
334
281
C
3 Unit
111
I.D.22.2
I.D.31.8 I.D.34.9
I.D.22.2 O.D.19.05
I.D.28.58
C
Service Port
I.D.15.88
416
408
I.D.15.88
I.D.28.58
111
I.D.22.2
I.D.31.8 I.D.34.9
I.D.41.3 I.D.38.1 O.D.34.9
C
O.D.22.2
331
314
416
408
C
High Pressure Gas Pipe
I.D. 19.05
O.D.15.88
I.D.41.3 I.D.38.1 O.D.34.9
I.D.28.58
I.D.28.58
O.D.190.05 I.D.22.2
I.D.22.2 O.D.28.58
O.D.41.3 I.D.44.5
A
ARCNB41
I.D.44.48 I.D.53.98
I.D. 34.9 O.D.28.58 I.D.22.2
O.D.15.88
O.D.19.05 I.D.22.2
415
375
4 Unit
I.D.28.58
I.D.34.9
I.D.53.98
130
I.D.15.88 I.D.12.7
I.D.53.98 I.D. 44.5 O.D.41.3
C
I.D.19.05
I.D.53.98 I.D.44.5 O.D.41.3
I.D.28.58
O.D.34.9
I.D.41.3
134
I.D.41.3
I.D.44.5
341
298
334
281
I.D.19.05
I.D.22.2 I.D.19.05
83
I.D.34.9
I.D.41.3
111
C
I.D.15.88 I.D.12.7
Liquid pipe
I.D.28.58
I.D.31.8 I.D.28.58 O.D.22.2
I.D.22.2 O.D.28.58 I.D.34.9
O.D.15.88
I.D.53.98 I.D.44.5 O.D.41.3
I.D.19.05
I.D.28.58
I.D.34.9 O.D.28.58 I.D.22.2
Low Pressure Gas pipe
For more information, refer accessory installation manual.
High Pressure Gas pipe
Y branch
Within +/- 10
A
B
A To outdoor unit
! WARNING
B To branch piping or indoor unit
Viewed from point A
in direction of arrow
• Always careful not to leak the refrigerant during welding.
• The refrigerant generates poisonous gas harmful to human body
if combusted.
• Do not perform welding in a closed space.
• Be sure to close the cap of the service port to prevent gas leakage after the work.
! CAUTION
Please block the pipe knock outs of the front and side panels after
installing the pipes.
(Animals or foreign objects may be brought in to damage wires.)
Installation procedure for HR unit
Connection of Outdoor units
1 Using an insert-hole-in- anchor, hang the hanging bolt.
2 Install a hexagon nut and a flat washer (locally-procured)to the hang-
When installing ODU series, refer below picture.
A
(Master)
B
(Slave1)
C
(Slave2)
A≥B≥C≥D (Capability)
① IDU side connection pipe
② ODU to ODU connection pipe (1st branch)
③ ODU to ODU connection pipe (2st branch)
④ ODU to ODU connection pipe (3rd brach)
D
(Slave3)
ing bolt as shown in the figure in the bottom, and fit the main unit to
hang on the hanger metal.
3 After checking with a level that the unit is level, tighten the hexagon
nut.
* The tilt of the unit should be within ±5° in front/back and left/right.
4 This unit should be installed suspended from ceiling and side A
should always be facing up.
5 Insulate not used pipes completely as shown in the figure.
Six-sided Nut
(M10 or M8)
A
Hanger metal
Flat washer
(M10)
Hanging bolt
(M10 or M8)
Insulation
ENGLISH
2, 3, 4 Outdoor Units
For Heat Recovery System Installation
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 16
16
ENGLISH
Installation of Outdoor Unit, HR Unit, Indoor Unit
Refrigerant Pipe
Joint Method of HR Unit (Big Duct : ARNU76GB8-,
ARNU763B8-, ARNU96GB8-, ARNU963B8-)
3 pipes are connected to the HR unit from the outdoor unit, classified
into liquid pipe, low pressure gas pipe and high pressure gas pipe depending on status of refrigerant passing through the pipe.
You must connect 3 pipes from outdoor unit to HR unit.
For connection between indoor unit and HR unit, you must connect
both liquid pipe and gas pipe from the HR unit to the indoor unit. In this
case, connect them to the indoor unit starting from No.1 connection
port of the HR unit (the port number is displayed on ports of the HR
unit). Use auxiliary flare as annexed parts in connection to the indoor
unit.
Joint Method is required when the big duct chassis is installed. In Joint
Method, two neighboring outlets of one HR unit are linked by Y branch
pipe and connected to one indoor unit.
1st HR Unit
1
2
3
2nd HR Unit
4
1
B8 BG
(96k) (28k)
2
3
4
BH B8
(21k) (76k)
Gas pipe
Liquid pipe
High
Pressure
Gas Pipe
Liquid pipe
High pressure gas pipe
3 4
1 2
Liquid pipe
3 4
1 2
Low pressure gas pipe
HR Unit
Gas pipe
Gas pipe Ø15.88 (5/8)
Liquid pipe Ø9.52 (3/8)
Brazing Type
Remove caps on
The brazing part.
Low Pressure
Gas Pipe
[Unit : mm (inch)]
Liquid pipe
Pipe
connection
From left
side
Pipe
connection
From right
side
HR unit
PRHR022
PRHR022A
PRHR032
PRHR032A
PRHR042
PRHR042A
Low pressure
gas pipe
Ø22.2 (7/8)
Ø28.58 (1-1/8)
Ø28.58 (1-1/8)
High pressure
gas pipe
Ø19.05 (3/4)
Ø22.2 (7/8)
Ø22.2 (7/8)
Liquid pipe
Ø9.52 (3/8)
Ø12.7 (1/2)
Ø15.88 (5/8)
Installation of Zoning Control
Parallel
pipe
connection
Some indoor unit can be connected to one port of HR unit.
! CAUTION
Whenever connecting the indoor units with the HR unit, install the indoor units in numerical order from No.1.
Ex) In case of installing 3 indoor units : No. 1, 2, 3 (O), No. 1, 2, 4 (X),
No.1, 3, 4 (X), No.2, 3, 4 (X).
HR unit
Zoning control group 1
HR unit
sealing
Zoning control group 2
(Max. 8 Indoor Units)
(Max. 8 Indoor Units)
Type of HR Unit
Changeover under control
Select an HR unit according to the number of the indoor units to be installed. HR units are classified into 3 types by the number of connectable indoor units.
Ex) Installation of 6 indoor units
Consists of HR unit for 4 branches and HR unit for 2 branches.
1
2
1
PRHR022 or PRHR022A
(2 branches)
2
3
PRHR032 or PRHR032A
(3 branches)
3 4
1 2
PRHR042 or PRHR042A
(4 branches)
Auto changeover
Changeover under control
! WARNING
• A branch pipe of HR unit allows up to 14.1 kW (48 kBtu/h) based
on cooling capacity of the indoor unit.
(up to 14.1kW (48kBtu/h) for max installation)
• The maximum total capacity of indoor units connected to a
PRHR042 or PRHR042A HR unit is 56.4kW (192 kBtu/h).
• The maximum number of indoor units connected to a PRHR042
or PRHR042A HR unit are 32 indoor units. (The Maximum indoor
units per a branch pipe of HR unit are 8 indoor units)
• There is not operate “Auto-changeover” & “Mode override”
function in the zoning group.
• When there are operating indoor units on cooling(heating) mode,
another indoor units aren’t changed on heating(cooling) mode in
the zoning group.
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 17
17
ENGLISH
[Reducers for indoor unit and HR unit]
Unit : mm (inch)
A
Gas pipe
Models
Liquid pipe
Indoor unit
reducer
High pressure
Low pressure
–
OD9.52(3/8)
PRHR022
PRHR022A
Ø6.35(1/4)
OD15.88(5/8)
OD19.05(3/4) Ø15.88(5/8) Ø12.7(1/2)
Ø12.7(1/2)
OD22.2(7/8)Ø19.05(3/4) Ø15.88(5/8)
OD9.52(3/8) Ø6.35(1/4)
OD12.7(1/2)
Ø9.52(3/8)
A To Outdoor Unit
B Sealed Piping
OD15.88(5/8) Ø12.7(1/2)
HR unit
reducer
A
PRHR032,
PRHR042
PRHR032A,
PRHR042A
OD22.2(7/8) Ø19.05(3/4) Ø15.88(5/8)
B
OD28.58(1-1/8) Ø22.2(7/8) Ø19.05(3/4)
OD15.88(5/8) Ø12.7(1/2) Ø9.52(3/8)
OD15.88(5/8) Ø12.7(1/2)
OD19.05(3/4) Ø15.88(5/8)
Caution
9 The Multi V will stop due to an abnormality like excessive or insuffi-
1 Use the following materials for refrigerant piping.
- Material: Seamless phosphorous deoxidized copper pipe
- Wall thickness : Comply with the relevant local and national regulations for the designed pressure 3.8 MPa (551 psi).
We recommend the following table as the minimum wall thickness.
Outer diameter 6.35 9.52 12.7 15.88 19.05 22.2 25.4 28.58 31.8 34.9 38.1 41.3 44.45 53.98
[mm(inch)] (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)
Minimum thick- 0.8 0.8 0.8 0.99 0.99 0.99 0.99 0.99 1.1 1.21 1.35 1.43 1.55 2.1
ness [mm(inch)] (0.03) (0.03) (0.03) (0.04) (0.04) (0.04) (0.04) (0.04) (0.04) (0.05) (0.05) (0.06) (0.06) (0.08)
2 Commercially available piping often contains dust and other materials. Always blow it clean with a dry inert gas.
3 Use care to prevent dust, water or other contaminants from entering
the piping during installation.
4 Reduce the number of bending portions as much as possible, and
make bending radius as big as possible.
5 Always use the branch piping set shown below, which are sold separately.
Header
! WARNING
Y branch
4 branches 7 branches 10 branches
ARBLB01621, ARBLB03321,
ARBLB07121, ARBLB14521,
ARBLB23220
cient refrigerant. At such a time, always properly charge the unit.
When servicing, always check the notes concerning both the piping
length and the amount of additional refrigerant.
10 Never perform a pump down. This will not only damage the compressor but also deteriorate the performance.
11 Never use refrigerant to perform an air purge. Always evacuate air
by using a vacuum pump.
12 Always insulate the piping properly. Insufficient insulation will result in a decline in heating/cooling performance, drip of condensate
and other such problems.
13 When connecting the refrigerant piping, make sure the service
valves of the Outdoor Unit is completely closed (the factory setting) and do not operate it until the refrigerant piping for the Outdoor and Indoor Units has been connected, a refrigerant leakage
test has been performed and the evacuation process has been
completed.
14 Always use a non-oxidizing brazing material for brazing the parts
and do not use flux. If not, oxidized film can cause clogging or
damage to the compressor unit and flux can harm the copper piping or refrigerant oil.
ARBL054
ARBL057
ARBL1010
ARBL104
ARBL107
ARBL2010
6 If the diameters of the branch piping of the designated refrigerant
piping differs, use a pipe cutter to cut the connecting section and
then use an adapter for connecting different diameters to connect
the piping.
7 Always observe the restrictions on the refrigerant piping (such as
rated length, difference in height, and piping diameter).
Failure to do so can result in equipment failure or a decline in heating/cooling performance.
8 A second branch cannot be made after a header. (These are shown
by .)
When installing and moving the air conditioner to another site, be
sure to make recharge refrigerant after perfect evacuation.
• If a different refrigerant or air is mixed with the original refrigerant, the refrigerant cycle may malfunction and the unit may be
damaged.
• After selecting diameter of the refrigerant pipe to suit total capacity of the indoor unit connected after branching, use an appropriate branch pipe set according to the pipe diameter of the
indoor unit and the installation pipe drawing.
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 18
18
ENGLISH
PIPE CONNECTIONS BETWEEN
INDOOR AND OUTDOOR UNIT
- Pipe connections can be done on the front side or on the side according to the installation environments.
- Be sure to let 0.2 kgf/cm2 (2.8 psi) Nitrogen flow in the pipe when
welding.
- If Nitrogen was not flown during welding, many oxidized membranes
may form inside the pipe and disturb the normal operations of valves
and condensers.
Remove leakage prevention cap
• Remove the leakage prevention cap attached to the outdoor unit
service valve before pipe work.
• Proceed the leakage prevention cap removal as follows:
- Verify whether all the pipes are locked.
- Extract remaining refrigerant or air inside using the service port.
- Remove the leakage prevention cap
Service Port
Liquid pipe
Not used
(keep closed)
Right
Side Pipe
Draw Out
Regulator
Refrigerant Pipe
Gas pipe
Nitrogen
Direction
Taping
Left Side
Pipe Draw
Out
Valve
Nitrogen
Leakage
Prevention Cap
Front Pipe Draw Out
Pipe Drawing Out during Single / Series connection
For Heat Pump System Installation
Method of drawing out pipes on the front side
- Proceed with the pipe work as shown in the below figure for front
side pipe drawing out.
Preparation Work
- Use Knock Outs of Base Pan of the outdoor unit for Left/Right or
Bottom pipe drawing outs.
Gas pipe
Liquid pipe
Knock Out for
Gas Pipe
Knock Out for
Liquid pipe
Liquid pipe
Gas pipe
Removal area for pipes
bottom side connections.
Knock Out for
communication cable
Knock Out for
power supply cable
Chassis
UXA
UXB
! CAUTION
• Do not give damage to the pipe/base during the Knock Out
work.
• Proceed to pipe work after removing burr after Knock Out work.
• Perform sleeve work to prevent damage to the wire when connecting wires using Knock Outs.
A
B
C
HP
8
10
12
14/16
18/20/22
24/26
12.7(1/2)
12.7(1/2)
15.88(5/8)
15.88(5/8)
A(mm)
9.52(3/8)
9.52(3/8)
B(mm)
19.05(3/4)
22.2(7/8) 28.58(1-1/8) 28.58(1-1/8) 28.58(1-1/8) 34.9(1-3/8)
C(mm)
19.05(3/4)
19.05(3/4)
19.05(3/4)
* Elbow is Field supplied
* Elbow size are same as Pipe 'A', 'C'.
22.2(7/8)
22.2(7/8) 28.58(1-1/8)
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 19
19
Y branch method
Remove Knock Out for the pipes
Master
Refrigerant piping system
1 Outdoor Units
Y branch method
Indoor
Unit
L 150 m [492 ft] (200 m [656 ft])
h 40 m (131 ft)
h * : See Table 4
ODU Capacity
Master ≥ Slave 1 ≥Slave 2 ≥Slave 3
Slave3
Slave2
Slave1
Slave3
Slave2
Slave1
Master
10m or
less
Master
L 150 m [492 ft] (200 m [656 ft])
l 40 m [131 ft] (90m [295 ft]
h * : See Table 4
Header Method
H 110 m [361 ft]
Combination of Y
branch/header Method
h * : See Table 4
Header Method
H 110 m [361 ft]
L 200 m [656 ft]
l 40 m [131 ft]
h 40 m [131 ft]
h 40m(131ft)
L 150 m [492 ft] (200 m [656 ft])
l 40 m [131 ft] (90m [295 ft])
Ⓐ : Outdoor Unit
Ⓑ : Header branch
Ⓒ : Indoor Units
Ⓓ : Sealing
Ⓔ : Connection branch pipe
between Outdoor
units : ARCNN41
Ⓕ : Connection branch pipe
between Outdoor
units : ARCNN31
Ⓖ : Connection branch pipe
between Outdoor
units : ARCNN21
ODU Capacity
Master ≥ Slave 1 ≥Slave 2 ≥Slave 3
Slave3
Slave2
Slave1
Master
10m or
less
H 110 m [361 ft]
h * : See Table 4
Ⓐ : Outdoor Unit
Ⓑ : 1st branch
Ⓒ : Indoor Units
Ⓓ : Sealed piping
Ⓔ : Header
l 40 m [131 ft] (90m [295 ft])
l 40 m [131 ft] (90m [295 ft])
h 40 m [131 ft]
Ⓐ : Outdoor Unit
Ⓑ : 1st branch (Y branch)
Ⓒ : Y branch
Ⓓ : Indoor Unit
Ⓔ : Header
Ⓕ : Sealed piping
L 150 m [492 ft] (200 m [656 ft])
H 110 m [361 ft]
Ⓐ : Outdoor Unit
Ⓑ : 1st branch(Y branch)
Ⓒ : Y branch
Ⓓ : Indoor Unit
Ⓔ : Connection branch pipe
between Outdoor
units : ARCNN41
Ⓕ : Connection branch pipe
between Outdoor
units : ARCNN31
Ⓖ : Connection branch pipe
between Outdoor
units : ARCNN21
Ⓗ : Header
Ⓘ : Sealing
Indoor
Unit
Slave3
Slave2
Slave1
Master
10m or
less
Combination of Y branch/
header Method
h Please weld with the proper Low pressure Gas pipe included with
product.
H 110 m [361 ft]
Slave2
Slave1
H 110 m [361 ft]
Ⓐ : Outdoor Unit
Ⓑ : 1st branch (Y branch)
Ⓒ : Indoor Units
Ⓓ : Downward Indoor Unit
Ⓔ : Connection branch
pipe between Outdoor
units: ARCNN41
Ⓕ : Connection branch
pipe between Outdoor
units : ARCNN31
Ⓖ : Connection branch
pipe between Outdoor
units : ARCNN21
Gas pipe
Ⓐ : Outdoor Unit
Ⓑ : 1st branch (Y branch)
Ⓒ : Indoor Units
ODU Capacity
Master ≥ Slave 1 ≥Slave 2 ≥Slave 3
Slave3
h 40 m (131 ft)
No Use
(Weld with supplied accessory pipe cap)
Liquid pipe
Slave3
Slave2
Slave1
Master
L 200 m [656 ft]
l 40 m [131 ft]
h 40 m (131 ft)
ENGLISH
Series Outdoor Units (2 Units ~ 4 Units)
Method of drawing out pipes on the bottom side
- Drawing out common pipe through side panel
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 20
20
ENGLISH
Pipe Drawing Out during Single / Series connection
For Heat Recovery System Installation
Preparation Work
- Use Knock Outs of Base Pan of the outdoor unit for Left/Right or
Bottom pipe drawing outs.
Method of drawing out pipes on the front side
- Proceed with the pipe work as shown in the below figure for front
side pipe drawing out.
High Pressure
Gas pipe
Liquid pipe
Knock Out for low
pressure gas pipe
Knock Out for high
pressure gas pipe
Knock Out for
Liquid pipe
Low Pressure Gas pipe
Liquid pipe
High Pressure Gas pipe
Low Pressure Gas pipe
Removal area for pipes
bottom side connections.
Knock Out for
communication cable
Knock Out for
power supply cable
Chassis
UXA
UXB
! CAUTION
• Do not give damage to the pipe/base during the Knock Out
work.
• Proceed to pipe work after removing burr after Knock Out work.
• Perform sleeve work to prevent damage to the wire when connecting wires using Knock Outs.
Remove leakage prevention cap
• Remove the leakage prevention cap attached to the outdoor unit
service valve before pipe work.
• Proceed the leakage prevention cap removal as follows:
- Verify whether the liquid/gas pipes are locked.
- Extract remaining refrigerant or air inside using the service port.
- Remove the leakage prevention cap
Service Port
A
B
C
HP
8
10
12
A(mm)
9.52(3/8)
9.52(3/8)
12.7(1/2)
B(mm) 19.05(3/4) 22.2(7/8)
28.58
(1-1/8)
14/16
28.58
(1-1/8)
C(mm) 19.05(3/4) 19.05(3/4) 19.05(3/4) 22.2(7/8)
Liquid pipe
Low Pressure
Gas pipe
High Pressure
Gas pipe
18/20/22
24/26
12.7(1/2) 15.88(5/8) 15.88(5/8)
28.58
(1-1/8)
22.2(7/8)
34.9
(1-3/8)
28.58
(1-1/8)
* Elbow is Field supplied
* Elbow size are same as Pipe 'A', ‘B‘, 'C'.
Method of drawing out pipes on the bottom side
- Drawing out common pipe through side panel
Leakage
Prevention Cap
Liquid pipe
Low Pressure Gas pipe
High Pressure Gas pipe
Remove Knock Out for the bottom side of Liquid / Gas pipe
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 21
21
4 Outdoor Units
! WARNING
Example : 12 Indoor Units connected
Ⓐ : Outdoor Unit
Ⓑ : Y branch
Ⓓ : Indoor Unit
Ⓔ : Connection branch pipe between Outdoor units : ARCNB41
Ⓕ : Connection branch pipe between Outdoor units : ARCNB31
Ⓖ : Connection branch pipe between Outdoor units : ARCNB21
Ⓗ : Header
Ⓘ : HR Unit
* : Serial connection of HR units : Capacity sum of indoor units ≤
192.4 kBtu/hr
• Refer to the HR unit PCB part for the valve group control setting.
• It is recommended that difference in pipe lengths between an HR
unit and indoor units, for example difference in length of a, b, c,
and d, be minimized. The larger difference in pipe lengths, the
more different performance between indoor units.
• Piping length from outdoor branch to outdoor unit ≤ 10m (33ft),
equivalent length : max 13m (43ft)
* If the large capacity indoor units (Over 5 HP; using over Ø15.88
(5/8) / Ø9.52 (3/8)), are installed, it should be used the Valve
Group setting
Slave 3
A4
Slave 2
A3
Slave 1
A2
Master
Refrigerant pipe diameter from branch to branch (B,C)
A1
ODU Capacity
Master ≥ Slave1 ≥ Slave 2 ≥ Slave 3
G
10m
F
or le
E
ss
A
1
D
B1
a
2
D
b
B
C1
I1
*
c
H
3
B2
D
"a"
d
C3
I3
C2
h
4
I2
D
g
D
"b"
i
I4
7
k
j
f
e
H
8
l
9
6
5
sealing
x
D
D
n
m
10
D
11
D
12
D
Gas pipe [mm(inch)]
Downward indoor
unit total capacity
[kW(Btu/h)]
Liquid pipe
[mm(inch)]
Low pressure
High pressure
≤ 5.6(19,100)
< 16.0 (54,600)
< 22.4 (76,400)
< 33.6(114,700)
< 50.4(229,000)
< 61.6(210,600)
< 72.8(210,600)
< 100.8(344,000)
< 173.6(592,500)
< 184.8(630,700)
≤ 224.0(764,400)
Ø6.35(1/4)
Ø9.52(3/8)
Ø9.52(3/8)
Ø9.52(3/8)
Ø12.7(1/2)
Ø15.88(5/8)
Ø15.88(5/8)
Ø19.05(3/4)
Ø19.05(3/4)
Ø22.2(7/8)
Ø22.2(7/8)
Ø12.7(1/2)
Ø15.88(5/8)
Ø19.05(3/4)
Ø22.2(7/8)
Ø28.58(1 1/8)
Ø28.58(1 1/8)
Ø34.9(1 3/8)
Ø34.9(1 3/8)
Ø41.3(1 5/8)
Ø44.5(1 3/4)
Ø53.98(2 1/8)
Ø9.52(3/8)
Ø12.7(1/2)
Ø15.88(5/8)
Ø19.05(3/4)
Ø22.2(7/8)
Ø22.2(7/8)
Ø28.58(1 1/8)
Ø28.58(1 1/8)
Ø34.9(1 3/8)
Ø41.3(1 5/8)
Ø44.5(1 3/4)
D
D
- Case 1 ("a") : Maximum height is 15 m (49.2 ft) if you install with Y
branch.
- Case 2 ("b") : Maximum height is 5 m (16.4 ft) in serial connection of
HR units.
(**) Conditional Application (In case of D12 is the farthest in door)
Below condition must be satisfied for 40~90 m (131~295 ft) piping length
after first branch.
1 Diameter of pipes between first branch and the last branch should be increased by one step, except if the pipe diameter B, C3 is same as diameter
A (main pipe diameter)
Ø6.35 (1/4), Ø9.52 (3/8), Ø12.7 (1/2), Ø15.88 (5/8), Ø19.05 (3/4),Ø22.2 (7/8),
Ø25.4* (1), Ø28.58 (1-1/8), Ø31.8* (1-1/4), Ø34.9 (1-3/8), Ø38.1* (1-1/2)
* : If available on site, select this pipe size.
Otherwise it doesn’t need to be increased
2 While calculating total refrigerant piping length, pipe B, C3 length should
be calculated twice.
A + B x 2 + C3 x 2 + C1 + C2 + a + b + c + d + e + f + g + i + j + k + l
+ m + n ≤ 1 000 m (3281 ft)
3 Length of pipe from each indoor unit to the closest HR unit
(a, b, c, d, e, f, g, i, j, k, l, m, n) ≤ 40 m (131 ft)
4 [Length of pipe from outdoor unit to the farthest indoor unit D12
(B+C3+K)
- [Length of pipe from outdoor unit to the closest indoor unit D1 (C1+a)]
≤ 40 m (131 ft)
Total pipe length = A + B + C1 + C2 + C3 + a + b + c + d
+ e + f + g + i + j + k + l + m + n ≤ 1,000m (3,280ft)
L
l
H
h
h1
"a", "b"
Longest pipe length
* Equivalent pipe length
A+B+C3+D+k ≤ 150m (200m**) [(492ft(656ft**)] A+B+C3+D+k ≤ 175m (225m**) [(574ft(738ft**)]
Longest pipe length after 1st branch
B+C3+D+k ≤ 40m(90m**) [131ft (295ft)]
Difference in height(Outdoor Unit ÷ Indoor Unit)
H ≤ 110m (361 ft)
Difference in height (Indoor Unit ÷ Indoor Unit)
h ≤ 40m (131 ft)
Difference in height (Outdoor Unit ÷ Outdoor Unit)
h1 ≤ 5m (16.4 ft)
Difference in height(HR unit ÷ HR unit)
a ≤ 15m (49ft), b ≤ 5m (16ft)
- * : Assume equivalent pipe length of Y branch to be 0.5m (1.64ft),
that of header to be 1m (3.3ft), calculation purpose
- It is recommended that indoor unit is installed at lower position than
the header.
- ** : To apply conditional application.
! WARNING
When the equivalent length between a outdoor and the farthest indoor unit is 90 m (295 ft) or more, main pipe(A) must be increased
one grade.
ENGLISH
Refrigerant pipe diameter from branch to branch (B,C,D)
Refrigerant piping system
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 22
22
ENGLISH
Refrigerant pipe diameter from outdoor unit to first
branch. (A)
Pipe diameter when pipe length is ≥
90m (295ft) or when height differential
(ODU÷IDU) is > 50m (164ft)
Standard Pipe Diameter
ODU.
Capacity
(hp)
Pattern 3
pressure High pressure Liquid Pipe Low pressure High pressure
Liquid Pipe Low
gas pipe
gas pipe
gas pipe
gas pipe
mm (inch) mm
mm (inch)
(inch) mm (inch)
mm (inch)
mm (inch)
HR1
8
Ø 9.52 (3/8) Ø19.05 (3/4) Ø15.88 (5/8) Ø12.7 (1/2) Not increased Not increased
1
2
3
4
10
Ø 9.52 (3/8) Ø22.2 (7/8) Ø19.05 (3/4) Ø12.7 (1/2) Not increased Not increased
48k
48k
48k
48k
12
Ø12.7 (1/2) Ø28.58 (1-1/8) Ø19.05 (3/4) Ø15.88 (5/8) Not increased Not increased
14~16
Ø12.7 (1/2) Ø28.58 (1-1/8) Ø22.2 (7/8) Ø15.88 (5/8) Not increased Not increased
• The maximum total capacity of indoor
units is 56.4kW(192 kBtu/h).
Pattern 4
18~20 Ø15.88 (5/8) Ø28.58 (1-1/8) Ø22.2 (7/8) Ø19.05 (3/4) Not increased Not increased
22
Ø15.88 (5/8) Ø28.58 (1-1/8) Ø28.58 (1-1/8) Ø19.05 (3/4) Not increased Not increased
24
Ø15.88 (5/8) Ø34.9 (1-3/8) Ø28.58 (1-1/8) Ø19.05 (3/4) Not increased Not increased
HR1
26~34 Ø19.05 (3/4) Ø34.9 (1-3/8) Ø28.58 (1-1/8) Ø22.2 (7/8) Not increased Not increased
36
Ø19.05 (3/4) Ø41.3 (1-5/8) Ø28.58 (1-1/8) Ø22.2 (7/8) Not increased Not increased
B
38~60 Ø19.05 (3/4) Ø41.3 (1-5/8) Ø34.9 (1-3/8) Ø22.2 (7/8) Not increased Not increased
62~64
Ø22.2 (7/8) Ø44.5 (1-3/4)Ø41.3 (1-5/8) Ø25.4 (1) Not increased Not increased
66~96
Ø22.2 (7/8) Ø53.98 (2-1/8) Ø44.5 (1-3/4) Ø25.4 (1) Not increased Not increased
1
2
3
4
12k
12k
12k
12k
• The maximum total capacity of a branch
pipe of HR unit is 14.1kW(48 kBtu/h).
* If available on site, select pipe size according to upper table.
Otherwise it doesn’t need to be increased
Pattern 5
Y branch, Header and HR unit connection pattern
Pattern 1
A
HR1
HR2
1
2
3
4
48k
48k
48k
48k
B
HR1
Pattern 6
HR2
1
2
3
4
48k
48k
48k
48k
• Impossible installation : Head branch pipe
HR1
HR unit
A
A
A
B
Pattern 2
HR1
A
B
1
2
3
4
5
6
7
7k
7k
7k
7k
7k
24k
24k
• Impossible installation : HR unit
Head branch
pipe
Y and Head branch pipe.
1
2
3
4
5
24k
24k
12k
12k
24k
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 23
23
For Heat Pump And Heat Recovery System Installation
*
HR2
A
Pipe Connection Method between outdoor
unit/indoor unit
HR3
Slave1
Master
HR1
1
2
48k
48k
3
4
5
6
48k
48k
48k
48k
Slave2
Slave3
H1
L2
• * : Serial connection of HR units : Capacity sum of indoor units ≤ 56.4 kW (192 kBtu/h)
L3
E
Pattern 8
F
Indoor
Unit
G
L1
1st branch
*
l 40m (131ft) Refrigerant pipe diameter from outdoor unit to first branch
HR2
A
A
HR1
B
1
2
48k
48k
h 40 m (131 ft)
3
4
5
6
7
8
12k
12k
12k
12k
24k
24k
• * : Maximum indoor units per a branch are 8 indoor units
Indoor Unit
Head Branch pipe
Y Branch pipe
1
B
A
Low pressure Gas pipe
High pressure Gas pipe
Liquid pipe
Outdoor
Unit
Gas pipe
HR1
Liquid pipe
h See Table 2
A : Refrigerant pipe diameter from outdoor unit to first branch
E : Refrigerant pipe diameter for outdoor unit capacity
(Slave 1+ Slave 2+ Slave 3)
F : Refrigerant pipe diameter for outdoor unit capacity
(Slave 2+ Slave 3)
G : Refrigerant pipe diameter for outdoor unit capacity(Slave 3)
Level Difference
(Outdoor unit ÷ Outdoor unit)
Indoor
Unit
5 m [16.4 ft]
Max length from first branch to
each outdoor unit (L1, L2, L3)
• Pipe installation from outdoor units to HR units
: 3 pipes(Low pressure Gas pipe, High pressure Gas pipe, Liquid pipe)
Less than 10 m [32.8 ft]
(equivalent length of piping 13 m
[42.7 ft])
• Pipe installation from HR units to indoor units
: 2 pipes(Gas pipe, Liquid pipe)
(Table 1) Limit Pipe length
1) under 40 m (131 ft)
Y branch
Indoor
Unit
Indoor
Unit
Indoor
Unit
Indoor
Unit
Keep the sum of indoor capacity under 56.4kW(192 kBtu/h).
1) under 40 m (131 ft)
Indoor Indoor Indoor Indoor
Unit
Unit
Unit
Unit
Indoor Indoor Indoor Indoor
Unit
Unit
Unit
Unit
Keep the sum of indoor capacity under 56.4kW(192 kBtu/h).
15m(49ft)
5m(16ft)
Keep the 40 m (131 ft) distance from the first branch to the farthest indoor.
Combination of Y Header
branch/header
Method
Method
Longest A+B+C+D+e ≤ 150 m A+B+b ≤ 150 m [492 ft]
[492 ft]
A+C+e ≤ 150 m [492 ft] A+f ≤ 200 m
pipe
(200 m [656 ft] : Condi- (200 m [656 ft] : Condi[656 ft]
length(L)
tional application)*
tional application)*
Outdoor Unit
Max pipe
175 m [574 ft]
175 m [574 ft]
÷
Equivalent
225 m
length
(225 m [738 ft] : Condi- (225 m [738 ft] : Condi[738 ft]
Indoor Unit pipe length tional application)*
tional application)*
Total pipe
1000 m
1000 m [3281 ft]
1000 m [3281 ft]
length
[3281 ft]
Outdoor Unit Difference in
110 m [361 ft]
110 m [361 ft]
110 m [361 ft]
Max
÷ Indoor Unit height(H)
difference
Indoor Unit Difference in
in height
40 m [131 ft]
40 m [131 ft]
40 m [131 ft]
÷ Indoor Unit height(h)
Y branch
Method
Longest pipe
length after
1st branch
Pipe
length(l)
40 m [131 ft]
40 m [131 ft]
(90 m [295 ft] : Condi- (90 m [295 ft] : Condi- 40 m [131 ft]
tional application)*
tional application)*
h * : See Table 4
! WARNING
Increased Pipe Diameter(table 2)
- When pipe length is 90m [295 ft] or more from ODU to 1st
branch
- When level difference is 50 m [164 ft] or more
ENGLISH
Pattern 7
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 24
24
Pipe diameter when pipe Pipe diameter when pipe Pipe diameter when height differlength is < 90m (295ft) length is ≥ 90m (295ft)
ODU
ential (ODU÷IDU) is > 50m (164ft)
(Standard)
capacity
(hp)
Liquid Pipe
Gas Pipe
Liquid Pipe
Gas Pipe
Liquid Pipe
Gas Pipe
mm (inch)
mm (inch)
mm (inch)
mm (inch)
mm (inch)
mm (inch)
8
Ø9.52 (3/8) Ø19.05 (3/4) Ø12.7 (1/2)
10
Ø9.52 (3/8)
Ø22.2 (7/8)
Ø22.2 (7/8)
Ø12.7 (1/2) Not increased
Ø12.7 (1/2) Ø28.58 (1-1/8) Ø12.7 (1/2) Not increased
12~16
Ø12.7 (1/2) Ø28.58 (1-1/8) Ø15.88 (5/8) Ø34.9 (1-3/8) Ø15.88 (5/8) Not increased
18~22
Ø15.88 (5/8) Ø28.58 (1-1/8) Ø19.05 (3/4) Ø34.9 (1-3/8) Ø19.05 (3/4) Not increased
24
Ø15.88 (5/8) Ø34.9 (1-3/8) Ø19.05 (3/4) Ø41.3 (1-5/8) Ø19.05 (3/4) Not increased
26~34
Ø19.05 (3/4) Ø34.9 (1-3/8) Ø22.2 (7/8) Ø41.3 (1-5/8) Ø22.2 (7/8) Not increased
36~60
Ø19.05 (3/4) Ø41.3 (1-5/8) Ø22.2 (7/8) Ø44.5 (1-3/4) Ø22.2 (7/8) Not increased
62~64
Ø22.2 (7/8) Ø44.5 (1-3/4)
Ø25.4 (1) Ø53.98 (2-1/8) Ø25.4 (1)
Not increased
66~96
Ø22.2 (7/8) Ø53.98 (2-1/8) Ø25.4 (1) Ø53.98 (2-1/8) Ø25.4 (1)
Not increased
(Table 3) Refrigerant pipe diameter from first branch to last branch (B,C,D)
Downward indoor unit
total capacity [kW(Btu/h)]
Liquid pipe
[mm(inch)]
Gas pipe
[mm(inch)]
≤ 5.6(19,100)
< 16.0 (54,600)
≤ 22.4 (76,400)
< 33.6 (114,700)
< 50.4 (172,000)
< 67.2 (229,400)
< 72.8(248,500)
< 100.8(344,000)
< 173.6(592,500)
< 184.8(630,700)
≤ 224.0(764,400)
Ø6.35(1/4)
Ø9.52(3/8)
Ø9.52(3/8)
Ø9.52(3/8)
Ø12.7(1/2)
Ø15.88(5/8)
Ø15.88(5/8)
Ø19.05(3/4)
Ø19.05(3/4)
Ø22.2(7/8)
Ø22.2(7/8)
Ø12.7(1/2)
Ø15.88(5/8)
Ø19.05(3/4)
Ø22.2(7/8)
Ø28.58(1-1/8)
Ø28.58(1-1/8)
Ø34.9(1-3/8)
Ø34.9(1-3/8)
Ø41.3(1-5/8)
Ø44.5(1-3/4)
Ø53.98(2-1/8)
(Table 4) Conditional Application
• To satisfy below condition to make 40 m ~ 90 m of pipe length after first branch.
Condition
Example
Ø6.35(1/4) ’ Ø9.52(3/8), Ø9.52(3/8) ’
Diameter of pipes beØ12.7(1/2), Ø12.7(1/2) ’ Ø15.88(5/8),
tween first branch and the
40 m [131 ft] <
Ø15.88(5/8) ’ Ø19.05(3/4), Ø19.05(3/4) ’
last branch should be inB+C+D+e
Ø22.2(7/8), Ø22.2(7/8) ’ Ø25.4(1),
1
creased by one step, ex- 90 m [295 ft] ’ B, C, D Ø25.4(1) ’ Ø28.58(1-1/8), Ø28.58(1-1/8) ’
cept pipe diameter B,C,D Change a diameter Ø31.8(1-1/4), Ø31.8(1-1/4) ’ Ø34.9(1-3/8),
Ø34.9(1-3/8) ’ Ø38.1(1-1/2)
is same as Diameter A
2
While calculating whole refrigerant pipe length, pipe
B,C,D length should be calculated twice.
A+Bx2+Cx2+Dx2
+a+b+c+d+e ≤
1 000 m [3 281 ft]
Indoor
Unit
Length of pipe from each
a,b,c,d,e ≤ 40 m
3 indoor unit to the closest
[131 ft]
branch
Length of pipe from outdoor unit to the farthest
indoor unit 5
4 (A+B+C+D+e)] - [Length
of pipe outdoor unit to the
closest indoor unit 1
(A+a)] ≤ 40 m [131 ft]
(A+B+C+D+e)(A+a) ≤ 40 m
[131 ft]
! WARNING
• In case of pipe diameter B connected after first branch is bigger
than the main pipe diameter A, B should be of the same size
with A.
Ex) In case indoor unit combination ratio 120% is connected to
24HP(67.2 kW) outdoor unit.
1) Outdoor unit main pipe diameter A : Ø34.9(1-3/8)(Gas pipe),
Ø15.88(5/8)(liquid pipe)
2) Pipe diameter B after first branch according to 120% indoor
unit combination(80.6kW) : Ø34.9(1-3/8)(gas pipe),
Ø19.05(3/4)(liquid pipe)
Therefore, pipe diameter B connected after first branch
would be Ø34.9(1-3/8)(gas pipe) / Ø15.88(5/8)(liquid pipe)
which is same with main pipe diameter.
Outdoor unit Connection
! WARNING
• In case of pipe diameter B connected after first branch is bigger
than the main pipe diameter A, B should be of the same size
with A.
Ex) In case indoor unit combination ratio 120% is connected to
70kW outdoor unit.
1) Outdoor unit main pipe diameter A : Ø34.9(1-3/8))(Low
pressure gas pipe), Ø15.88(5/8)(liquid pipe), Ø28.58(11/8)(High Pressure liquid pipe)
2) Pipe diameter B after first branch according to 120% indoor unit combination(84kW) : Ø34.9(1-3/8)(Low pressure
gas pipe), Ø19.05(3/4)(liquid pipe), Ø28.58(1-1/8)(High
Pressure liquid pipe)
Therefore, pipe diameter B connected after first branch
would be Ø34.9(1-3/8)(Low pressure gas pipe),
Ø15.88(5/8)(liquid pipe), Ø28.58(1-1/8)(High Pressure liquid pipe) which is same with main pipe diameter.
[Example]
Do not choose the main pipe diameter by downward indoor unit
total capacity but its outdoor unit model name.
Do not let the connection pipe from branch to branch exceed the
main pipe diameter chosen by outdoor unit model name.
EX) Where connecting the indoor units to the 22 HP (61.5 kW)
outdoor unit to 120% of its system capacity (73.8 kW) and
branching 7k (2.1kW) indoor unit at the 1st branch
Main pipe diameter(22 HP outdoor unit): Ø28.58(1-1/8)(Low pressure gas pipe), Ø15.88(5/8)(Liquid pipe), Ø22.2(7/8)(High pressure
gas pipe)
Pipe diameter between 1st and 2nd branch (71.7kW indoor units):
Ø34.9(1-3/8)(Gas pipe) Ø19.05(3/4)(Liquid pipe) in conformity with
Downward indoor units.
Since the main pipe diameter of 22HP outdoor unit is Ø28.58(11/8)(Low pressure gas pipe), Ø15.88(5/8)(Liquid pipe), Ø22.2(7/8)
(High pressure gas pipe) is used as the main pipe and the connection pipe between 1st and 2nd branch.
L
H 110 m [361 ft]
ENGLISH
(Table 2) Refrigerant pipe diameter from outdoor unit to first branch. (A)
l
h 40 m [131 ft]
Indoor Unit Connection
Indoor Unit connecting pipe from branch (a,b,c,d,e,f)
Indoor Unit capacity
[kW(Btu/h)]
≤ 5.6(19,100)
< 16.0(54,600)
< 22.4(76,400)
< 28.0(95,900)
Liquid pipe
[mm(inch)]
Ø6.35(1/4)
Ø9.52(3/8)
Ø9.52(3/8)
Ø9.52(3/8)
Gas pipe [mm(inch)]
Ø12.7(1/2)
Ø15.88(5/8)
Ø19.05(3/4)
Ø22.2(7/8)
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 25
25
• Bending radius should be
at least twice the diameter
of the pipe.
• Bend pipe after 500mm
[19.7 inch] or more from
branch(or header).
Do not bend U type.
It may affect performance
or result in noise. If U type
bending is required the R
should be more than
200mm [7.9 inch]
500mm [19.7 inch]
or more
500mm [19.7 inch]
or more
If the main pipe is
higher than the
outdoor units, oil is
accumulated in the
outdoor unit.
Oil Trap
R
If there are differences in the height
between the outdoor units, oil is
accumulated in the lower outdoor unit.
Pipe Connection Method/Precautions for
Series connections between Outdoor units
(Example 1)
- Separate Y branch joints are needed for series connections between
outdoor units.
- Please refer to the below connection examples to install pipe connections between outdoor units.
Toward indoor unit
Toward indoor unit
(Example 2)
Pipe connection between outdoor
units (General Case)
The maximum pipe
length after the first
branching between the
outdoor units is 10 m
[32.8 ft] or less
Toward indoor unit
Pipe inclination (2° or more)
Toward indoor unit
(Example 3)
Pipes between outdoor units
are 2 m [6.6 ft] or less
Toward indoor unit
2 m [6.6 ft] or less
Pipes between outdoor units
are 2 m [6.6 ft] or longer
Toward indoor unit
- Apply Oil Trap as shown below when the length of the pipe between
the outdoor units is more than 2 m [6.6 ft]. Otherwise, the unit may
not operate properly.
Oil Trap
0.2 m [0.66 ft]
2 m [6.6 ft] or less
2 m [6.6 ft] or longer
(Example 1)
2 m [6.6 ft] or less
2 m [6.6 ft] or longer
Oil Trap
2 m [6.6 ft] or less
2 m [6.6 ft] or longer
- If the distance between the outdoor units becomes more than 2 m
[6.6 ft], apply Oil Traps between the gas pipes.
- If the outdoor unit is located lower than the main pipe, apply Oil Trap.
Toward indoor unit
2m
(Example 2)
0.2 m [0.66 ft]
Oil Trap
Oil Trap
Toward indoor unit
2 m [6.6 ft]
2 m [6.6 ft]
ENGLISH
Examples of Wrong Pipe Connections
! CAUTION
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 26
26
Branch pipe Fitting
Y branch
(Example 1)
B
A
Toward indoor unit
Ⓐ To Branch Piping or Indoor Unit
Ⓑ To Outdoor Unit
• Ensure that the branch pipes are attached horizontally or vertically
(see the diagram below.)
Toward indoor unit
Horizontal
plane
Facing
downwards
(Example 2)
Facing
upwards
Within +/- 10°
A
Viewed from point A
in direction of arrow
Within ±3°
Within ±3°
h≤5m
• There is no limitation on the joint mounting configuration.
• If the diameter of the refrigerant piping selected by the procedures
described is different from the size of the joint, the connecting section should be cut with a pipe cutter.
• Branch pipe should be insulated with the insulator in each kit.
Toward indoor unit
(Example 3)
Tape
(field supply)
h≤5m
Toward indoor unit
Liquid and gas
pipe joints
Insulator
(included with kit)
Oil Trap
Insulator for
field piping
h≤5m
Toward indoor unit
0.2 m [0.66 ft]
ENGLISH
- When connecting the pipes between the outdoor units, the accumulation of oil in the slave outdoor unit should be avoided. Otherwise,
the unit may not operate properly.
Header
A
B
C
Ⓐ To Outdoor Unit
Ⓑ To Indoor Unit
• The indoor unit having larger capacity must be installed closer
to Ⓐ than smaller one.
• If the diameter of the refrigerant
piping selected by the procedures described is different
from the size of the joint, the
connecting section should be
cut with a pipe cutter.
ⓒ Pipe cutter
• When the number of pipes to be
connected is smaller than the
number of header branches, install a cap to the unconnected
branches.
• When the number of indoor units to be connected to the branch
pipes is less than the number of branch pipes available for connection then cap pipes should be fitted to the surplus branches.
B
Pinched pipe
• Fit branch pipe lie in a horizontal plane.
Horizontal plane
View from point B in the direction of the arrow
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 27
27
Header
[Unit:mm(inch)]
Models
Insulate the header using
the insulation
material attached to the
branch pipe kit
as shown in the figure.
Gas pipe
Liquid pipe
360
360(14-5/32)
120
ID9.52(3/8)
ID12.7
ID9.52(3/8)
ID6.35(1/4)
ID12.7
4 branch
ARBL054
ID15.88
120
ID15.88
150
120(4-23/32)
ID6.35(1/4)
ID9.52(3/8)
ID9.52(3/8)
ID9.52(3/8)
ID9.52(3/8)
ID9.52(3/8)
ID15.88
ID19.05
ID12.7(1/2)
150
120
(5-29/32)
(4-23/32)
ID9.52(3/8)
540(21-1/4)
540
120
120(4-23/32)
ID12.7
7 branch
ARBL057
• Joints between branch and pipe should be sealed with the tape included in each kit.
ID15.88
ID15.88
120
ID15.88
ID19.05
4 branch ID12.7(1/2)
ID15.88(5/8)
ID15.88(5/8)
ID15.88(5/8)
ID15.88(5/8)
ARBL104
360(14-5/32)
160
ID12.7(1/2)
ID9.52(3/8)
ID6.35(1/4)
ID19.05
150
120
ID15.88
ID6.35(1/4)
160
ID15.88
ID19.05
120
150
ID12.7(1/2)
160
ID6.35(1/4)
ID19.05
ID15.88
120
150
Y branch pipe
[Unit:mm(inch)]
Gas pipe
Liquid pipe
I.D.9.52(3/8)
I.D.6.35(1/4)
I.D.12.7(1/2)
I.D.15.88(5/8)
I.D.15.88(5/8)
I.D.12.7(1/2)
I.D.6.35(1/4)
I.D.9.52(3/8)
74
(2-29/32)
I.D.12.7(1/2)
1
O.D.15.88(5/8)
O.D.9.52(3/8)
70(2-3/4)
70(2-3/4)
I.D.22.2(7/8)
I.D.19.05(3/4)
I.D.15.88(5/8)
I.D.12.7(1/2)
2
I.D.19.05(3/4)
1
ARBLN03321
390(15-11/32)
413(16-1/4)
I.D.12.7(1/2)
I.D.9.52(3/8) I.D.6.35(1/4)
I.D.6.35(1/4)
I.D.9.52(3/8)
83
I.D.19.05(3/4) I.D.12.7
(1/2) (3-9/32)
I.D.15.88(5/8)
80(3-5/32)
70(2-3/4)
321(12-5/8)
332(13-1/16)
110(4-11/32)
I.D.19.05(3/4)
I.D.22.2(7/8) I.D.15.88(5/8)
I.D.28.58(1-1/8)
96
I.D.15.88(5/8) I.D.12.7
I.D.19.05(3/4)
(1/2) (3-25/32)
376(14-13/16)
404(15-29/32)
ARBLN07121
I.D.28.58(1-1/8)
3
I.D.9.52(3/8)
90(3-17/32)
I.D.9.52(3/8)
O.D.12.7(1/2)
I.D.6.35(1/4)
O.D.12.7(1/2)
3
2
70(2-3/4)
110(4-11/32)
120(4-23/32)
I.D.34.9(1-3/8)
I.D.34.9(1-3/8)
I.D.41.3(1-5/8)
I.D.38.1(1-1/2)
I.D.28.58(1-1/8)
2
I.D.28.58(1-1/8)
I.D.34.9(1-3/8) I.D.22.2(7/8)
I.D.38.1(1-1/2)
471(18-17/32)
517(20-11/32)
125
(4-29/32)
I.D.12.7(1/2)
3
I.D.19.05(3/4)
I.D.22.2(7/8) I.D.15.88(5/8)
2
I.D.15.88(5/8) I.D.12.7 96
(1/2)
I.D.19.05(3/4)
(3-25/32)
I.D.22.2(7/8)
3
416(16-3/8)
444(17-15/32)
I.D.9.52(3/8)
I.D.12.7(1/2)
O.D.19.05(3/4)
O.D.15.88(5/8) I.D.9.52(3/8)
I.D.22.2(7/8) O.D.12.7(1/2) I.D.6.35(1/4)
2
O.D.28.58(1-1/8) I.D.22.2(7/8)
I.D.19.05(3/4)
2
3
3
80(3-5/32)
110(4-11/32)
110(4-11/32)
120(4-23/32)
70(2-3/4)
I.D.44.48(1-3/4)
I.D.41.3(1-5/8)
I.D.38.1(1-1/2)
I.D.53.98(2-1/4)
1
I.D.44.48(1-3/4)
I.D.41.3(1-5/8)
2
I.D.44.48(1-3/4)
I.D.38.1(1-1/2) 134
420(16-17/32)
490(19-9/32)
I.D.34.9(1-3/8)
I.D.15.88(5/8)
I.D.19.05(3/4)
1
3
I.D.19.05(3/4)
I.D.41.3(1-5/8)
I.D.38.1(1-1/2)
O.D.22.2(7/8) I.D.15.88(5/8)
O.D.38.1(1-1/2)
O.D.34.9(1-3/8)
3
2
I.D.41.3
3
(1-5/8)
90(3-17/32)
120(4-23/32)
130(5-1/8)
I.D.53.98(2-1/4)
I.D.28.58(1-1/8) O.D.44.48(1-3/4)
I.D.25.4(1)
I.D.22.2(7/8)
I.D.19.05(3/4)
I.D.25.4(1) I.D.22.2(7/8)
2
I.D.25.4(1)
I.D.22.2(7/8) I.D.19.05(3/4) 96(3-25/32)
3
I.D.31.8(1-1/4)
O.D.38.1(1-1/2)
2 3
83
(3-9/32)
3
371(14-19/32)
394(15-1/2)
I.D.34.9(1-3/8)
120(4-23/32)
I.D.15.88(5/8) I.D.12.7(1/2)
I.D.19.05(3/4)
I.D.19.05(3/4)
I.D.22.2(7/8)
O.D.19.05(3/4)
O.D.22.2(7/8) I.D.31.8(1-1/4) O.D.31.8(1-1/4)
I.D.28.58(1-1/8)
2
1
3
ARBLN23220
I.D.19.05(3/4)
I.D.15.88(5/8) I.D.12.7(1/2)
2
I.D.15.88(5/8)
I.D.12.7(1/2)
2
1
I.D.31.8(1-1/4)
346(13-5/8)
379(14-29/32)
I.D.25.4(1)
I.D.22.2(7/8)
3
O.D.28.58(1-1/8)
X2
175(6-7/8)
3
O.D.15.88(5/8)
I.D.6.35(1/4)
I.D.6.35(1/4)
I.D.6.35(1/4)
I.D.6.35(1/4)
I.D.12.7(1/2)
74 I.D.6.35(1/4)
I.D.6.35(1/4)
I.D.9.52(3/8) I.D.6.35(1/4)
I.D.6.35(1/4) (2-29/32) I.D.6.35(1/4)
I.D.12.7(1/2)
3
I.D.22.2(7/8)
I.D.22.2(7/8) I.D.28.58(1-1/8)
O.D.19.05(3/4)
O.D.25.4(1) O.D.19.05(3/4)
I.D.25.4(1)
3
1 2
O.D.15.88(5/8)
74
(2-29/32)
281(11-1/16)
292(11-1/2)
281(11-1/16)
292(11-1/2)
I.D.19.05(3/4)
ARBLN14521
I.D.6.35(1/4)
I.D.9.52(3/8)
X2
2 3
I.D.12.7(1/2)
3
115(4-17/32)
100(4-11/32)
I.D.19.05(3/4)
3
70(2-3/4)
O.D.22.2(7/8)
I.D.15.88(5/8)
I.D.15.88(5/8)
O.D.19.05(3/4)
O.D.12.7(1/2)
X2
2 3
110(4-11/32)
120(4-23/32)
I.D.9.52(3/8)
O.D.12.7(1/2)
I.D.6.35(1/4)
3
110(4-11/32)
150
120
(5-29/32)
(4-23/32)
(3/8)
ID25.4
ID9.52
ID9.52
ID9.52
ID9.52
(3/8)
(3/8)
(3/8)
(3/8)
ID22.2
ID9.52(3/8)
ID9.52(3/8)
ID12.7(1/2)
700(27-9/16)
ID19.05
ID15.88
ID34.9
107(4-7/32)
60*9=540(21-1/2)
ID15.88
ID12.7
ID31.8
1
1
ID9.52(3/8)
ID6.35(1/4)
ID9.52
(3/8)
ID9.52
182
10 branch
ARBL2010
150
120
(5-29/32)
(4-23/32)
120(4-23/32)
ID15.88
775
I.D.25.4(1)
ID6.35(1/4)
ID9.52(3/8)
ID9.52(3/8)
ID9.52(3/8)
ID9.52(3/8)
ID9.52(3/8)
ID12.7
ID28.58
1
120(4-23/32)
ID22.2
Tape
ARBLN01621
700(27-9/16)
ID6.35(1/4)
ID9.52(3/8)
720(28-11/32)
Insulator for cap pipe
Cap pipe
ID9.52(3/8)
ID9.52(3/8)
ID6.35(1/4)
ID6.35(1/4)
ID6.35(1/4)
ID6.35(1/4)
ID28.58 ID25.4
10 branch
ARBL1010
150
120
(4-23/32) (5-29/32)
ID12.7(1/2)
760
I.D.12.7(1/2)
I.D.15.88(5/8)
ID9.52(3/8)
ID22.2
ID12.7
Models
ID6.35(1/4)
ID9.52(3/8)
ID9.52(3/8)
ID9.52(3/8)
ID9.52(3/8)
580
ID12.7(1/2)
ID15.88(5/8)
ID12.7(1/2)
ID15.88(5/8)
ID12.7(1/2)
7 branch
ID12.7(1/2)
ID12.7(1/2)
ID15.88(5/8) ID15.88
ID15.88(5/8)
ID15.88(5/8)
ID15.88(5/8)
ARBL107
120(4-23/32)
ID9.52(3/8)
ID15.88
ID12.7
ID28.58 ID25.4
• Any cap pipe should be insulated using the insulator provided with
each kit and then taped as described above.
150
120
(5-29/32)
(4-23/32)
ID9.52(3/8)
ID12.7(1/2)
400
Insulator
Insulator of field pipe
ID9.52(3/8)
150
ID12.7(1/2)
ID12.7(1/2)
ID15.88(5/8)
ID12.7(1/2)
ID12.7(1/2)
ID15.88(5/8)
ID12.7(1/2)
Tape
ID6.35(1/4)
ID12.7
ID6.35(1/4)
ID6.35
(1/4)
ID6.35
120
150
120
(4-23/32) (5-29/32)
150 (1/4)
ID9.52
ID28.58
(3/8)
ID9.52
ID6.35
ID6.35
ID6.35
ID6.35
(3/8)
(1/4)
(1/4)
(1/4)
(1/4)
ID9.52
ID9.52
ID9.52
ID9.52
(3/8)
(3/8)
(3/8)
(3/8)
ID9.52(3/8)
ID19.05(3/4)
ID15.88(5/8)
ENGLISH
• Header should be insulated with the insulator in each kit.
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 28
28
ENGLISH
Distribution Method
Vacuum Mode
Horizontal Distribution
This function is used for creating vacuum in the system after compressor replacement, ODU parts replacement or IDU addition/replacement.
Slave
Master
Vacuum mode setting method
DIP-SW01
Slave 3rd main pipe distribution
Master
2nd
1st
Slave
Master
1st
1st
2nd
2nd
7-Segment
SW04C (X : cancel)
SW03C (ȯ: forward)
SW02C (ȭ: backward)
SW01C (Ɨ: Confirm /
Automatic Addressing)
SW01D (reset)
3rd
3rd
1st
Main pipe
Distribution
Master unit PCB DIP switch on : No.5
3rd
Main pipe
Distribution
Select the mode using ‘▶’, ‘◀’ Button :
“SVC” Push the ‘●’ button
Vertical Distribution
- Ensure that the branch pipes are attached vertically.
Select the Function using ‘▶’, ‘◀’ Button :
“Se3” Push the ‘●’ button
Slave
Master
Start the vacuum mode : “VACC”
ODU Valve open
ODU EEV open
IDU EEV open
HR unit valve open, SC EEV open
Vacuum mode off method
Dip switch off and push the reset button on Master unit PCB
! CAUTION
Slave
Master
ODU operation stops during vacuum mode. Compressor can't
operate.
The others
Slave
Master
Slave
Master
Header
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 29
29
!
Leak test
Leak test should be made by pressurizing nitrogen gas to 3.8
MPa(38.7kgf/cm2). If the pressure does not drop for 24 hours, the system passes the test. If the pressure drops, check where the nitrogen
leaks. For the test method, refer to the following figure. (Make a test
with the service valves closed. Be also sure to pressurize liquid pipe,
gas pipe and high pressure gas pipe)
The test result can be judged good if the pressure has not be reduced
after leaving for about one day after completion of nitrogen gas pressurization.
Series Installation (Heat Pump)
Master outdoor unit
Gas Pipe
Close
When inserting nitrogen
gas of high pressure, it
must be used with regulator.
Indoor
Unit
Liquid Pipe
Indoor
Unit
HR unit
Gas Pipe
! WARNING
Use a vacuum pump or Inert(nitrogen) gas when doing leakage test
or air purge. Do not compress air or Oxygen and do not use Flammable gases. Otherwise, it may cause fire or explosion.
- There is the risk of death, injury, fire or explosion.
Series Installation (Heat Pump)
Slave 1 outdoor unit
Master outdoor unit
Close
Close
Close
Close
Close
Close
Gas pipe
Close
High Pressure
Gas Pipe
Close
Low Pressure
Gas Pipe
Close
When inserting nitrogen
gas of high pressure, it
must be used with regulator.
No use (closed)
Nitrogen Gas
Cylinder
Low Pressure
Gas Pipe
Liquid Pipe
Close
Liquid Pipe
Close
High Pressure
Gas Pipe
Close
Liquid pipe
Master outdoor unit
Vacuum
Vacuum drying should be made from the service port provided on the outdoor
unit’s service valve to the vacuum pump commonly used for liquid pipe, gas
pipe and high/low pressure common pipe. (Make Vacuum from liquid pipe, gas
pipe and high/low pressure common pipe with the service valve closed.)
* Never perform air purging using refrigerant.
• Vacuum drying: Use a vacuum pump that can evacuate to -100.7kPa
(-14.6psi, 5 Torr, -755mmHg).
- Evacuate the system from the liquid and gas pipes with a vacuum
pump for over 2 hrs and bring the system to -100.7kPa(-14.6psi).
After maintaining system under that condition for over 1 hr, confirm
the vacuum gauge rises. The system may contain moisture or leak.
- Following should be executed if there is a possibility of moisture remaining inside the pipe.
(Rainwater may enter the pipe during work in the rainy season or
over a long period of time)
After evacuating the system for 2 hrs, give pressure to the system
to 0.05MPa(7.3psi) (vacuum break) with nitrogen gas and then evacuate it again with the vacuum pump for 1hr to -100.7kPa(14.6psi)(vacuum drying). If the system cannot be evacuated to
-100.7kPa(-14.6psi) within 2 hrs, repeat the steps of vacuum break
and its drying. Finally, check if the vacuum gauge does not rise or
not, after maintaining the system in vacuum for 1 hr.
Gas pipe
Series Installation (Heat Recovery)
Nitrogen Gas
Cylinder
To prevent the nitrogen from entering the refrigeration system in
the liquid state, the top of the cylinder must be at higher position
than the bottom when you pressurize the system.
Usually the cylinder is used in a vertical standing position.
Liquid Pipe
Gas Pipe
Slave 1 outdoor unit
! CAUTION
Liquid pipe
No use (closed)
Close
Liquid Pipe
Liquid Pipe
Nitrogen Gas
Cylinder
No use (closed)
Close
Close
Gas Pipe
Close
Close
If the ambient temperature differs between the time when pressure is
applied and when the pressure drop is checked, apply the following
correction factor
There is a pressure change of approximately 0.01Mpa(1.5psi) for each
33.8°F (1°C) of temperature difference.
Correction= (Temp. at the time of pressurization – Temp. at the time of
check) X 0.1
For example: Temperature at the time of pressurization
3.8MPa(551psi) is 80.6°F (27°C)
24 hour later: 3.73MPa(541psi), 68°F (20°C)
In this case the pressure drop of 0.07MPa
(10psi) is because of temperature drop
And hence there is no leakage in pipe occurred.
No use (closed)
Slave 1 outdoor unit
NOTE
Liquid side
Indoor unit
Scale
Use a graviometer. (One that can measure
down to 0.1 kg (0.22 lbs)). If you are
unable to prepare such a high-precision
gravimeter you may use a charge cylinder.
Gas side
ENGLISH
Leak Test and Vacuum drying
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 30
30
Slave 1 outdoor unit
Master outdoor unit
Vacuum
pump
For Heat Pump System Installation
Ⓐ Manifold Gauge
Ⓑ Low Pressure Side Handle
Ⓒ High Pressure Side Handle
Close
Close
Close
Close
High Pressure
Gas pipe
Low Pressure
Gas pipe
High Pressure
Gas pipe
Low Pressure
Gas pipe
Vacuum
pump
Liquid pipe
Close
Close
Liquid pipe
ENGLISH
Refrigerant charging
Series Installation (Heat Recovery)
Liquid side
Indoor unit
HR unit
Scale
Use a graviometer. (One that can measure
down to 0.1 kg (0.22 lbs)). If you are
unable to prepare such a high-precision
gravimeter you may use a charge cylinder.
Gas side
! WARNING
Use a vacuum pump or Inert(nitrogen) gas when doing leakage test
or air purge. Do not compress air or Oxygen and do not use Flammable gases. Otherwise, it may cause fire or explosion.
- There is the risk of death, injury, fire or explosion.
!
Liquid Pipe
Not used
(keep closed)
Gas Pipe
NOTE
Always add an appropriate amount of refrigerant. (For the refrigerant additional charge)
Too much or too little refrigerant will cause trouble.
To use the Vacuum Mode (If the Vacuum mode is set, all valves of Indoor
units and Outdoor units will be opened.)
! WARNING
For Heat Recovery System Installation
Ⓐ Manifold Gauge
Ⓑ Low pressure side Handle
Ⓒ High pressure side Handle
When installing and moving the air conditioner to another site,
recharge after perfect evacuation.
- If a different refrigerant or air is mixed with the original refrigerant, the refrigerant cycle may malfunction and the unit may be
damaged.
Liquid Pipe
Low Pressure
Gas Pipe
High Pressure
Gas Pipe
! WARNING
• Pipe to be vacuumed : gas pipe, liquid pipe
(In case of Heat Recovery system, pipe to be vacuumed : High
pressure gas pipe, Low pressure gas pipe, Liquid pipe)
• If the refrigerant amount is not exact, it may not operate
properly.
• If additionally bottled refrigerant amount is over 10%, condenser
burst or insufficient indoor unit performance may be caused.
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 31
31
The calculation of the additional charge should take into account the
length of pipe and CF(correction Factor) value of indoor unit.
Additional charge(kg) = Total liquid pipe : Ø25.4 mm (1.0 inch) × 0.480 kg/m (0.323 lbs/ft)
+ Total liquid pipe : Ø22.2 mm (7/8 inch) × 0.354 kg/m (0.238 lbs/ft)
Be sure to give insulation work to refrigerant piping by covering liquid
pipe and gas pipe separately with enough thickness heat-resistant polyethylene, so that no gap is observed in the joint between indoor unit
and insulating material, and insulating materials themselves. When insulation work is insufficient, there is a possibility of condensation drip,
etc. Pay special attention to insulation work to ceiling plenum.
Heat insulation Adhesive + Heat - resistant polymaterial
ethylene foam + Adhesive tape
Indoor
Vinyl tape
Floor
exWater-proof
hemp cloth +
Outer
posed
Bronze asphalt
covering
hemp cloth +
Outdoor Water-proof
Zinc plate + Oily paint
+ Total liquid pipe : Ø19.05 mm (3/4 inch) × 0.266 kg/m (0.179 lbs/ft)
+ Total liquid pipe : Ø15.88 mm (5/8 inch) × 0.173 kg/m (0.116 lbs/ft)
+ Total liquid pipe : Ø12.7 mm (1/2 inch) × 0.118 kg/m (0.079 lbs/ft)
+ Total liquid pipe : Ø9.52 mm (3/8 inch) × 0.061 kg/m (0.041 lbs/ft)
+ Total liquid pipe : Ø6.35 mm (1/4 inch) × 0.022 kg/m (0.015 lbs/ft)
Include only for
× 0.5 kg/EA (1.1 lbs/EA)
Heat Recovery +
Number of installed HR units
system
CF value of indoor unit
Amount refrigerant of Indoor units
Example) 4Way Ceiling Cassette 14.5kW -1ea, Ceiling concealed
Duct 7.3kW-2ea,
Wall Mounted 2.3kW-4ea
CF = [0.64 kg (1.411 lbs)×1EA] + [0.26 kg (0.573
lbs)×2EA] + [0.26 kg (0.529 lbs)×4EA]
= 2.12 kg (4.67 lbs)
Ⓐ Heat insulation material
Ⓑ Pipe
Ⓒ Outer covering(Wind the connection part and cutting part of heat insulation material with a finishing tape.)
!
NOTE
When using polyethylene cover as covering material, asphalt roofing shall not be required.
Bad example
• Do not insulate gas or low pressure pipe and liquid or highpressure pipe together.
Attach the additional refrigerant table of IDU.
B
F
A
C
D
E
Ⓐ Liquid pipe
Ⓑ Gas pipe
ⓒ Power lines
ⓓ Finishing tape
ⓔ Insulating material
ⓕ Communication lines
• Be sure to fully insulate connecting portion.
A
Ⓐ These parts are not insulated.
! WARNING
• Regulation for refrigerant leakage
: the amount of refrigerant leakage should satisfy the following
equation for human safety.
Good example
C
Power lines
D
Total amount of refrigerant in the system
Volume of the room at which Indoor Unit of
the least capacity is installed
≤0.44 kg/m3
(0.028 lbs/ft3)
If the above equation can not be satisfied, then follow the following steps.
• Selection of air conditioning system: select one of the next
- Installation of effective opening part
- Reconfirmation of Outdoor Unit capacity and piping length
- Reduction of the amount of refrigerant
- Installation of 2 or more security device (alarm for gas leakage)
• Change Indoor Unit type
: installation position should be over 2 m (6.6 ft) from the floor (Wall
mounted type ’ Cassette type)
• Adoption of ventilation system
: choose ordinary ventilation system or building ventilation system
• Limitation in piping work
: Prepare for earthquake and thermal stress
Communication lines
D
A
B
E
Separation
Ⓐ Liquid pipe
Ⓑ Gas pipe
ⓒ Power lines
ⓓ Insulating material
ⓔ Communication lines
ENGLISH
Thermal insulation of refrigerant piping
The amount of Refrigerant
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 32
32
ENGLISH
Penetrations
Inner wall (concealed)
Outer wall
C
A
Outer wall (exposed)
Master Slave
Indoor
Unit
D
A
B
E
B
B
Indoor
Unit
Remote
control
I
Remote
control
Master Slave
Floor (fireproofing)
Penetrating portion on fire
limit and boundary wall
D
Roof pipe shaft
Indoor
Unit
Indoor
Unit
I
F
J
G
Remote
control
D
B
G
B
H
Remote
control
A
1m
(3.28 ft)
1m
(3.28 ft)
Master Slave1 Slave2
Ⓐ Sleeve
Ⓑ Heat insulating material
Ⓒ Lagging
Ⓓ Caulking material
Ⓔ Band
Ⓕ Waterproofing layer
Ⓖ Sleeve with edge
Ⓗ Lagging material
Ⓘ Mortar or other incombustible caulking
Ⓙ Incombustible heat insulation material
Indoor
Unit
Indoor
Unit
Remote
control
Remote
control
Master Slave1 Slave2
Indoor
Unit
When filling a gap with mortar, cover the penetration part with steel plate so
that the insulation material will not be caved in. For this part, use incombustible materials for both insulation and covering. (Vinyl covering should not
be used.)
Indoor
Unit
Remote
control
Remote
control
Multi-Core Cable
Master Slave1 Slave2 Slave3
Indoor
Unit
Indoor
Unit
Remote
control
Remote
control
Master Slave1 Slave2 Slave3
Indoor
Unit
Indoor
Unit
Remote
control
Master Slave
Indoor
Unit
Indoor
Unit
Remote
control
Remote
control
Master Slave
Indoor
Unit
Indoor
Unit
Remote
control
Remote
control
Remote
control
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 33
33
Indoor
Unit
Indoor
Unit
Remote
control
Caution
Remote
control
Master Slave1 Slave2
Indoor
Unit
! WARNING
Indoor
Unit
Remote
control
- Follow ordinance of your governmental organization for technical
standard related to electrical equipment, wiring regulations and guidance of each electric power company.
Remote
control
! CAUTION
• Use the 2-core shielded wires for communication cables. Never use
them together with power cables.
• The conductive shielding layer of cable should be grounded to the
metal part of both units.
• Never use multi-core cable
• As this unit is equipped with an inverter, to install a phase leading
capacitor not only will deteriorate power factor improvement effect,
but also may cause capacitor abnormal heating. Therefore, never install a phase leading capacitor.
• Make sure that the power unbalance ratio is not greater than 2%.
If it is greater the units lifespan will be reduced.
Be sure to have authorized electrical engineers do the electric
work using special circuits in accordance with regulations and this
installation manual.
If power supply circuit has a lack of capacity or electric work deficiency, it may cause an electric shock or fire.
- Install the Outdoor Unit communication cable away from the power
source wiring so that it is not affected by electric noise from the power
source. (Do not run it through the same conduit.)
- Be sure to provide designated grounding work to Outdoor Unit.
! CAUTION
Be sure to correct the outdoor unit to earth. Do not connect ground
wire to any gas pipe, liquid pipe, lightening rod or telephone earth
line. If earth is incomplete, it may cause an electric shock.
- Give some allowance to wiring for electrical part box of Indoor and
Outdoor Units, because the box is sometimes removed at the time of
service work.
Precautions when laying power wiring
Use round pressure terminals for connections to the power terminal
block.
Round pressure terminal
Power cable
When none are available, follow the instructions below.
- Do not connect wiring of different thicknesses to the power terminal
block. (Slack in the power wiring may cause abnormal heat.)
- When connecting cable which is the same thickness, do as shown in
the figure below.
- Never connect the main power source to terminal block of communication cable. If connected, electrical parts will be burnt out.
- Use the 2-core shielded wires for communication cable.( mark in
the figure below) If communication cable of different systems are
wired with the same multiplecore cable, the resultant poor transmitting and receiving will cause erroneous operations. ( mark in the
figure below)
- Only the communication cable specified should be connected to the
terminal block for Outdoor Unit communication.
2-core shielded cables
1Unit
Master
2Unit 3Unit 4Unit
Slave1 Slave2 Slave3
Indoor
Unit
- For wiring, use the designated power cable and connect firmly, then
secure to prevent outside pressure being exerted on the terminal
block.
- Use an appropriate screwdriver for tightening the terinal screws. A
screwdriver with a small head will strip the head and make proper
tighterning impossible.
- Over-tightening the terminal screws may break them.
! CAUTION
When the 400 volt power supply is applied to “N” phase by mistake,
check damaged parts in control box and replace them.
Indoor
Unit
Remote
control
Master
Remote
control
Slave1 Slave2 Slave3
Indoor
Unit
Remote
control
Indoor
Unit
Remote
control
ENGLISH
ELECTRICAL WIRING
Master Slave1 Slave2
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 34
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ENGLISH
Control box and connecting position of wiring
Communication and Power Cables
- Remove all of the screws at front panel and remove the panel by
pulling it forward.
- Connect communication cable between main and sub outdoor unit
through the terminal block.
- Connect communication cables between outdoor unit and indoor
units through the terminal block.
- When the central control system is connected to the outdoor unit, a
dedicated PCB must be connected between them.
- When connecting communication cable between outdoor unit and indoor units with shielded cable, connect the shield ground to the earth
screw.
Communication cable
- Types : shielded wires or unshielded wires
- Cross section : 1.0 ~ 1.5 mm2 (1.55 × 10-3 ~ 2.32 × 10-3 in2)
- Maximum allowable temperature: 60 °C (140 °F)
- Maximum allowable cable length: under 1 000 m (3 281 ft)
Remote control cable
- Types : 3-core cables
Central control cable
Product type
Cable type
Diameter
ACP&AC Manager
2-core wires (shielded)
1.0 ~ 1.5 mm2
(1.55 × 10-3 ~
2.32 × 10-3 in2)
AC Smart
2-core wires (shielded)
1.0 ~ 1.5 mm2
(1.55 × 10-3 ~
2.32 × 10-3 in2)
Simple central controller
4-core wires (shielded)
1.0 ~ 1.5 mm2
(1.55 × 10-3 ~
2.32 × 10-3 in2)
AC Ez
4-core wires (shielded)
1.0 ~ 1.5 mm2
(1.55 × 10-3 ~
2.32 × 10-3 in2)
Front Panel
! CAUTION
! WARNING
The temperature sensor for outdoor air should not be exposed to
direct sunlight.
- Provide an appropriate cover to intercept direct sunlight.
UXA
UXB
Main Board
External Board
Main power line
terminal block
(Take care of the phase
sequence of 3-phases
4-wires power system)
In case of using the shielded wires, it should be grounded.
Separation of communication and power cables
- If communication and power cables are installed alongside each other
then there is a strong likelihood of operational faults developing due
to interference in the signal wiring caused by electrostatic and electromagnetic coupling.
The tables below indicates our recommendation as to appropriate
spacing of communication and power cables where these are to be
run side by side
Current capacity of power cable
10A
50A
100V or more
100A
Exceed 100A
!
Spacing
300 mm (11-13/16 inch)
500 mm (19-11/16 inch)
1 000 mm (39-3/8 inch)
1 500 mm (59-1/16 inch)
NOTE
• The figures are based on assumed length of parallel cabling up
to 100 m [328 ft]. For length in excess of 100 m [328 ft] the figures will have to be recalculated in direct proportion to the additional length of cable involved.
• If the power supply waveform continues to exhibit some distortion the recommended spacing in the table should be increased.
- If the cable are laid inside conduits then the following point
must also be taken into account when grouping various cable
together for introduction into the conduits
- Power cable(including power supply to air conditioner) and
communication cables must not be laid inside the same
- In the same way, when grouping the power wires and communication cables should not be bunched together.
! CAUTION
If apparatus is not properly earthed then there is always a risk of
electric shock, the grounding of the apparatus must be carried out
by a qualified person.
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 35
35
Point for attention regarding quality of the
public electric power supply
- Use a separate power supply for the Outdoor Unit and Indoor Unit.
- Bear in mind ambient conditions (ambient temperature,direct sunlight, rain water,etc.) when proceeding with the wiring and connections.
- The cable size is the minimum value for metal conduit wiring. The
power cord size should be 1 rank thicker taking into account the line
voltage drops. Make sure the power-supply voltage does not drop
more than 10%.
- Specific wiring requirements should adhere to the wiring regulations
of the region.
- Power supply cords of parts of appliances for outdoor use should not
be lighter than polychloroprene sheathed flexible cord.
- Don't install an individual switch or electrical outlet to disconnect
each of indoor unit separately from the power supply.
This equipment complies with respectively:
- EN/IEC 61000-3-11 (1) provided that the system impedance Zsys is
less than or equal to Zmax and
- EN/IEC 61000-3-12 (2) provided that the short-circuit power Ssc is
greater than or equal to the minimum Ssc alue at the interface point
between the user's supply and the public system. It is the responsibility of the installer or user of the equipment to ensure, by consultation
with the distribution network operator if necessary, that the equipment is connected only to a supply with respectively:
- Zsys less than or equal to Zmax and
- Ssc greater than or equal to the minimum Ssc value.
Standard combination of
outdoor units
Zmax (Ω)
Minimum Ssc Value
(kVA)
ARUM080LTE5
-
2776
ARUM100LTE5
-
3828
ARUM120LTE5
-
3828
ARUM140LTE5
-
6339
ARUM160LTE5
-
6339
ARUM180LTE5
-
6339
ARUM200LTE5
-
6339
ARUM220LTE5
-
6339
ARUM240LTE5
-
8144
ARUM260LTE5
-
8144
The thickness of Minimum wire (mm2 [ inch2]) Leakage circuit breaker
Main power
Branch wire Ground wire (4P ELCB)
wire
1 Unit
2.5~16
[3.875 × 10-3
~2.48 × 10-2]
-
2.5~4
[3.875 × 10-3
~6.2 × 10-3]
Below 20~60 A
100 mA 0.1 sec
2 Unit
16~50
[2.48 × 10-2
~7.75 × 10-2]
-
4~10
[6.2 × 10-3
~1.55 × 10-2]
Below 75~150 A
100 mA 0.1 sec
3 Unit
50~95
[7.75 × 10-2
~1.4725 × 10-1]
-
10
[1.55 × 10-2]
Below 150~200 A
100 mA 0.1 sec
4 Unit
95~120
[1.4725 × 10-1
~1.86 × 10-1]
-
10~16
[1.55 × 10-2
~2.48 × 10-2]
Below 200~250 A
100 mA 0.1 sec
Ground wire
1 The power wire Between the master outdoor unit and slave1 outdoor unit - minimum : 6 mm2 [9.3 × 10-3 inch2]
2 The power wire Between the slave1 outdoor unit and slave2 outdoor unit - minimum : 4 mm2 [6.2 × 10-3 inch2]
3 The power wire Between the slave2 outdoor unit and slave3 outdoor unit - minimum : 2.5 mm2 [3.875 × 10-3 inch2]
h The above standard is CV wire standard.
h Please use the 3-phases 4-wires quadrupole Leakage circuit breaker
of circuit breaker.
! WARNING
• Follow ordinance of your governmental organization for technical standard related to electrical equipment, wiring regulations
and guidance of each electric power company.
• Make sure to use specified cables for connections so that no
external force is imparted to terminal connections. If connections are not fixed firmly, it may cause heating or fire.
• Make sure to use the appropriate type of overcurrent protection
switch. Note that generated overcurrent may include some
amount of direct current.
(1) European / International Technical Standard setting the limits for
voltage changes, voltage fluctuations and flicker in public low-voltage supply systems for equipment with rated current ≤75 A.
(2) European / International Technical Standard setting the limits for
harmonic currents produced by equipment connected to public lowvoltage systems with input current >16 A and ≤75 A per phase.
Field Wiring
Single outdoor unit
Outdoor
Power supply
(3Ø 4wires)
[Outdoor Unit]
(Main Switch)
R S T N
60Hz
50Hz
Voltage range(V)
Outdoor
Indoor
380V
220V
380-415V 220-240V
Switch
Indoor
Power supply
(1Ø 2wires)
L
Fuse
N
Power Line
(4 Wires Cable)
Power Line
(2 Wires Cable)
Communication Line
(2 Wires Cable)
Pull Box
(Installer option)
! CAUTION
• Some installation site may require attachment of an earth leakage
breaker. If no earth leakage breaker is installed, it may cause an
electric shock.
• Do not use anything other than breaker and fuse with correct capacity. Using fuse and wire or copper wire with too large capacity
may cause a malfunction of unit or fire.
Frequency
Pull Box
(Installer option)
Pull Box
(Installer option)
Pull Box
(Installer option)
HR unit
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
In case of Heat
Recovery System
Communication Line
(3 Wires Cable)
[Indoor Units]
ENGLISH
Wiring of main power supply and equipment
capacity
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36
ENGLISH
! WARNING
! WARNING
• Indoor Unit ground wires are required for preventing electrical
shock accident during current leakage, Communication disorder by
noise effect and motor current leakage (without connection to
pipe).
• Don't install an individual switch or electrical outlet to disconnect
each of indoor unit separately from the power supply.
• Install the main switch that can interrupt all the power sources in an
integrated manner because this system consists of the equipment
utilizing the multiple power sources.
• If there exists the possibility of reversed phase, lose phase, momentary blackout or the power goes on and off while the product is
operating, attach a reversed phase protection circuit locally. Running the product in reversed phase may break the compressor and
other parts.
Between Indoor and Master Outdoor unit
SODU. B SODU. A
IDU. B
IDU. A
CEN. B
CEN. A
DRY1
DRY2
GND
12V
• Indoor Unit ground wires are required for preventing electrical
shock accident during current leakage, Communication disorder by
noise effect and motor current leakage (without connection to pipe).
• Don't install an individual switch or electrical outlet to disconnect
each of indoor unit separately from the power supply.
• Install the main switch that can interrupt all the power sources in an
integrated manner because this system consists of the equipment
utilizing the multiple power sources.
• If there exists the possibility of reversed phase, lose phase, momentary blackout or the power goes on and off while the product is
operating, attach a reversed phase protection circuit locally.
Running the product in reversed phase may break the compressor
and other parts.
Between Indoor and Master Outdoor unit
The communication cables between indoor unit and master outdoor
unit are possible to connect with BUS type or STAR type.
Master
Outdoor Unit
SODU. B SODU. A
3
4
HR unit
3
4
3
The GND terminal at the
main PCB is a ‘-’ terminal
for dry contact, it is not
the point to make ground
connection.
4
In case of Heat Recovery System
Series outdoor units
When the power source is connected
In series between the units.
Frequency
60Hz
50Hz
Outdoor
Power supply
(3Ø 4wires)
[Master]
(Main Switch)
[Slave1]
Voltage range(V)
Outdoor
Indoor
380V
220V
380-415V 220-240V
[Slave2]
[Slave3]
R S T N
Switch
4
IDU. A
3
CEN. B
4
CEN. A
DRY1
DRY2
GND
3
12V
Master
Outdoor Unit
4
HR unit
SODU. B SODU. A
IDU. B
IDU. A
CEN. B
CEN. A
DRY1
DRY2
GND
12V
SODU. B SODU. A
IDU. B
IDU. A
CEN. B
CEN. A
DRY1
DRY2
GND
12V
SODU. B SODU. A
IDU. B
IDU. A
CEN. B
CEN. A
DRY1
DRY2
GND
12V
SODU. B SODU. A
IDU. B
IDU. A
CEN. B
CEN. A
DRY1
DRY2
GND
12V
Master
Outdoor unit
Slave1
Outdoor Unit
In case of Heat Recovery System
Slave2
Outdoor Unit
Slave3
Outdoor Unit
The GND terminal at the main PCB is a ‘-’ terminal for dry contact.
It is not the point to make ground connection.
- Make sure that terminal number of master and slave outdoor units
are matched.(A-A, B-B)
Fuse
Indoor
Power supply
(1Ø 2wires)
Example) Connection of transmission wire
N
L
Power Line
(4 Wires Cable)
Power Line
(2 Wires Cable)
Communication Line
(2 Wires Cable)
Pull Box
(Installer option)
Pull Box
(Installer option)
Pull Box
(Installer option)
Pull Box
(Installer option)
HR unit
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
In case of Heat
Recovery System
Communication Line
(3 Wires Cable)
[Indoor Units]
! WARNING
When the total capacity is over than as follow, the power source
do not use in series between the units.
The First terminal block could be burnt out.
When the power source is supplied to Each outdoor unit individually.
Outdoor
Power supply
(3Ø 4wires)
[Master]
(Main Switch)
R S T N
Switch
R S T N
R S T N
Switch
Fuse
Indoor
Power supply
(1Ø 2wires)
L
3
IDU. B
Switch
Fuse
[Slave1]
[Slave2]
[Slave3]
R S T N
Switch
Fuse
Fuse
N
Power Line
(2 Wires Cable)
Communication Line
(2 Wires Cable)
Power Line
(4 Wires Cable)
Pull Box
(Installer option)
Pull Box
(Installer option)
Pull Box
(Installer option)
Pull Box
(Installer option)
HR unit
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
In case of Heat
Recovery System
Communication Line
(3 Wires Cable)
Frequency
60Hz
50Hz
Voltage range(V)
Outdoor
Indoor
380V
220V
380-415V 220-240V
[Indoor Units]
[BUS type]
[STAR type]
- Connection of communication
cable must be installed like
below figure between indoor
unit to outdoor unit.
- Abnormal operation can be
caused by communication defect, when connection of communication cable is installed like
below figure(STAR type).
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ENGLISH
Example) Connection of power and communication cable (UXA)
Front Side
Bottom Side
Main power
terminal block
Ground wire
Main power
terminal block
When connecting
Main power lines
/ Ground wire from left side
When connecting
Communication wires
/ Ground wire from
front guide panel
Ground wire
Gap : Over
50mm(1.97’’)
Gap : Over
50mm(1.97’’)
Fix firmly with cable tie
or clamp cord not to be
displaced
When connecting
Communication wires
/ Ground wire from left side
When connecting
Main power lines
/ Ground wire from
front guide panel
Front Side
Main power line
connection
Main power
terminal block
Communication/Ground
wire connection
Ground wire
When connecting
Communication wires
/ Ground wire from
front guide panel
Gap : Over
50mm(1.97’’)
When connecting
Main power lines
/ Ground wire from
front guide panel
ODU-IDU
Communication
cable
Main power
terminal block
Fix firmly with cable tie or
clamp cord not to be displaced
ODU-ODU
Communication
cable
Insulation sleeves
attachments
Ground wire
Communication/Ground
wire connection
Main power line
connection
Ground wire
Ground wire
! CAUTION
It should be wiring power cables or communication cables to avoid
interference with the oil level sensor. Otherwise, That oil level sensor
would be operated abnormally.
ODU-IDU
Communication
cable
Main power
terminal block
Insulation sleeves
attachments
ODU-ODU
Communication
cable
Checking the setting of outdoor units
Ground wire
! CAUTION
It should be wiring power cables or communication cables to
avoid interference with the oil level sensor. Otherwise, That oil
level sensor would be operated abnormally.
Checking according to dip switch setting
- You can check the setting values of the Master outdoor unit from the
7 segment LED.
The dip switch setting should be changed when the power is OFF.
Checking the initial display
The number is sequentially appeared at the 7 segment in 5 seconds
after applying the power. This number represents the setting condition.
Example) Connection of power and communication cable (UXB)
[Main Board]
Bottom Side
Dip switch
Main power
terminal block
7 segment
Ground wire
When connecting
Main power lines
/ Ground wire from left side
Gap : Over
50mm(1.97’’)
When connecting
Communication wires
/ Ground wire from left side
SW01C
(Automatic Addressing Setting)
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ENGLISH
Quick control Setting
In the factory setting, main PCB dip switch setting is all “OFF”.
- Check and make sure that all the indoor unit model name are
ARNU******4.
- Change the main PCB Dip switch No. 3 “OFF → ON” like below picture.
- Push the reset button.
Dip Switch
Setting For Heat Recovery Unit (Refer Only Heat Recovery Installation)
[Heat Recovery (HR) Unit Board]
#4 valve housing
#1 valve housing
7 segment
7-SEG
Reset button
SW05M
SW01M
SW02M
(Dip switch for setup of
The function of HR unit)
SW01M/SW03M/SW04M
(Switch for manual valve
addressing)
SW04M
SW03M
Switch for setup of HR Unit
• Initial display order
Order
①
②
③
④
⑤
⑥
No
8~24
10~24
10~24
10~24
8~96
3
38
46
22
40
⑦
⑧
Main function of SW02M
Mean
Master unit capacity
Slave 1 unit capacity
Slave 2 unit capacity
Slave 3 unit capacity
Total capacity
Heat Pump (Factory Setting)
380V model
460V model
220V model
Full function
ON
Selection
S/W
Method for addressing valves of an HR
No.1
unit (Auto/Manual)
No.2 Model of HR unit
No.3 Model of HR unit
No.4 Model of HR unit
No.5 Valve group setting
SW02M
No.6 Valve group setting
Use only in factory production (preset to “OFF”) Zoning setting (“ON”)
Use only in factory proNo.8
duction (preset to “OFF”)
No.7
• Example) ARUM620LTE5
62hp 380V Heat Pump System (Master unit: 18 hp, Slave
1: 16 hp, Slave 2: 14hp, Slave 3: 14hp)
①
②
③
④
⑤
⑥
⑦
⑧
18
16
14
14
62
3
38
40
1 Selection of the method for addressing valves of an HR unit
(Auto/Manual)
Master/Slave dip switch setting
• Master Unit
Dip switch
setting
ODU Setting
Switch No.1 Off
• Slave Unit
Dip switch
setting
Heat Pump System
(Factory Setting)
Manual
ODU Setting
Slave 1
2 Setting the zoning control
DIP Switch setting
Slave 2
Slave 3
Normal
control
SW01M
Zoning
control
h Heat Recovery installation
① Turn on the dip s/w No 4.
Dip switch
setting
Switch No.1 On
Auto
SW01M
ODU Setting
Setting Heat pump system or Heat Recovery system
(Installer Setting)
② The factory setting display is appeared “HP”.
③ Change “HP” into “HR” display pushing ▶ button and then push
confirm button.
④ Turn off the dip s/w No 4. and Push reset button to restart the system. (If you turn on the dip s/w No 4, you can make sure “HR” or
“HP” display later.)
Turn the dip switch of
the zoning branch on.
Ex) Branch 1,2 are zoning control.
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 39
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Models
(Unit: mm [inch])
Low pressure Gas pipe
I.D22.2(7/8)
1
2
1
2
I.D25.4(1)
3 4
1 2
3
(For 3 branches)
PRHR032
PRHR032A
(For 4 branches)
PRHR042
PRHR042A
Initial
Setting
I.D12.7(1/2)
2
I.D12.7(1/2)
I.D9.52(3/8)
I.D6.35(1/4)
I.D9.52(3/8)
83
I.D19.05(3/4) I.D12.7
(1/2) (3-9/32)
I.D15.88(5/8)
I.D28.58(1-1/8)
O.D25.4(1)
3
80(3-5/32)
70(2-3/4)
I.D22.2(7/8)
321(12-5/8)
332(13-1/16)
I.D25.4(1)
110(4-11/32)
I.D15.88(5/8)
2
I.D19.05(3/4) I.D15.88
96
I.D22.2(7/8)
(5/8) (3-25/32)
I.D12.7(1/2)
74
I.D9.52(3/8)
I.D6.35(1/4) (2-29/32)
3
I.D22.2(7/8)
O.D19.05(3/4)
1 2
I.D19.05(3/4) I.D22.2(7/8)
I.D25.4(1)
I.D12.7(1/2)
390(15-11/32)
413(16-1/4)
I.D22.2(7/8)
O.D19.05(3/4)
High pressure Gas pipe
I.D19.05(3/4)
I.D19.05(3/4)
I.D15.88(5/8)
I.D19.05(3/4)
1
ARBLB03321
(For 2 branches)
PRHR022
PRHR022A
Liquid pipe
421(16-9/16)
444(17-15/32)
3
I.D12.7(1/2)
O.D15.88(5/8)
I.D9.52(3/8)
O.D15.88(5/8)
3
2
I.D12.7(1/2)
110(4-11/32)
70(2-3/4)
SW05M (Rotary S/W for addressing HR unit)
Must be set to '0' when installing only one HR unit.
When installing multiple HR units, address the HR units with sequentially increasing numbers starting from '0'.
1 branches
Connected
2 branches
Connected
Ex) Installation of 3 HR units
3 branches
Connected
A B
A B
3 4
1 2
4 branches
Connected
3 4
1 2
A B
3 4
1 2
* Each model is shipped with the switches No.2 and No.3 pre-adjusted
as above in the factory.
! WARNING
• If you want to use a PRHR032 or PRHR032A for 2 branches HR
unit after closing the 3rd pipes, set the dip switch for 2 branches
HR unit.
• If you want to use a PRHR042 or PRHR042A for 3 branches HR
unit after closing the 4th pipes, set the dip switch for 3 branches
HR unit.
• If you want to use a PRHR042 or PRHR042A for 2 branches HR
unit after closing the 3rd and 4th pipes, set the dip switch for 2
branches HR unit.
• The unused port must be closed with a copper cap, not with a
plastic cap.
SW01M/SW03M/SW04M (Dip S/W and tact S/W for
manual valve addressing)
1 Normal setting (Non-Zoning setting)
- Set the address of the valve of the HR unit to the central control
address of the connected indoor unit.
- SW01M: selection of the valve to address
SW03M: increase in the digit of 10 of valve address
SW04M: increase in the last digit of valve address
- Prerequisite for manual valve addressing : central control address
of each indoor unit must be preset differently at its wired remote
control.
S/W No.
No.1
No.2
No.3
No.4
Setup
Manual addressing of valve #1
Manual addressing of valve #2
Manual addressing of valve #3
Manual addressing of valve #4
SW03M
SW03M
Increase in the digit of 10 of valve
address
SW04M
SW04M
Increase in the last digit of valve address
4 Setting the Valve Group.
DIP S/W setting
Example
SW01M
Not control
No.1, 2 Valve
Control
4
3
2
1
Indoor Unit
Indoor Unit
Indoor Unit
Indoor Unit
4
3
2
1
Indoor Unit
Indoor Unit
Large capacity indoor unit
2 Zoning setting
No.2, 3 Valve
Control
4
3
2
1
Indoor Unit
Large capacity indoor unit
Indoor Unit
No.3, 4 Valve
Control
4
3
2
1
Large capacity indoor unit
Indoor Unit
Indoor Unit
4
3
2
1
Large capacity indoor unit
Large capacity indoor unit
No.1, 2 Valve
/
No.3, 4 Valve
Control
!
NOTE
If the large capacity indoor units are installed, below Y branch pipe should be
used.
- Set the address of the valve of the HR unit to the central control
address of the connected indoor unit.
- SW01M : selection of the valve to address
SW03M : increase in the digit of 10 of valve address
SW04M : increase in the last digit of valve address
SW05M :Rotary S/W
- Prerequisite for manual valve addressing : central control address
of each indoor unit must be preset
differently at its wired remote control.
ENGLISH
Y branch pipe
3 Selection of the model of HR unit
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 40
40
ENGLISH
S/W No.
No.1
No.2
No.3
No.4
Setup
Manual addressing of valve #1
Manual addressing of valve #2
Manual addressing of valve #3
Manual addressing of valve #4
SW03M
SW03M
Increase in the digit of 10 of valve address
SW04M
SW04M Increase in the last digit of valve address
SW01M
The Procedure of Automatic Addressing
Power On
Waiting 3 minutes
Press RED Button for 5 s
(SW01C)
7-segment LED
SW05M
Automatic Addressing process start
= 88
SW05M Manual addressing of zoning indoor units
Don’t press RED Button
(SW01C)
Automatic Addressing
• Automatic addressing process end Numbers of indoor
unit connected are indicated for 30seconds on
7-segment LED after completing process
Waiting about 2~7 minutes
The address of indoor units would be set by Automatic
Addressing
- Wait for 3 minutes after supplying power.
(Master and Slave outdoor units, indoor units)
- Press RED button of the outdoor units for 5 seconds. (SW01C)
- A “88” is indicated on 7-segment LED of the outdoor unit PCB.
- For completing addressing, 2~7 minutes are required depending on
numbers of connected indoor units
- Numbers of connected indoor units whose addressing is completed are
indicated for 30 seconds on 7-segment LED of the outdoor unit PCB
- After completing addressing, address of each indoor unit is indicated
on the wired remote control display window. (CH01, CH02,
CH03, ……, CH06 : Indicated as numbers of connected indoor units)
[Main Board]
Dip switch
7 segment
SW01C
(Automatic Addressing Setting)
7-segment LED
= 88
YES
OK
NO
Check the connections
of communication cable
Indoor address number is displayed on wired remote controller or
indoor unit display window. It is not an error message, will
disappeared when on/off button is pressed on remote controller
ex) Display of 01, 02, ..., 15 means connection of 15 indoor units
and Automatic addressing is completed normally.
! CAUTION
• In replacement of the indoor unit PCB, always perform Automatic
addressing setting again (At that time, please check about using Independent power module to any indoor unit.)
• If power supply is not applied to the indoor unit, operation error
occur.
• Automatic Addressing has to be performed after more than 3 minutes to improve indoor unit communition when initial power is supplied.
• Please be sure that all the dip switch (1~7) of master outdoor unit is
OFF before Automatic Addressing setting
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41
Automatic pipe detection
1 Turn No.1 of DIP s/w SW02M of HR unit PCB off.
2 Confirm that the setting of No.2, 3 of SW02M corresponds with the
Type of the valve connection.
3 Reset the power of HR unit PCB
4 Master Out door unit PCB DIP switch on : No.5
5 Select the mode using ‘▶’, ‘◀’ Button : “Idu” Push the ‘●’ button
6 Select the “Id 5” function using ‘▶’, ‘◀’ Button :“Ath” or “”Atc”
Push the ‘●’ button.
Outdoor temperature is over 15°C(59°F) : “Atc” Using (If it fail, use
“Ath”)
Outdoor temperature is below 15°C(59°F) : “Ath” Using (If it fail,
use “Atc”)
7 Select the mode using ‘▶’, ‘◀’ Button : “Idu” Push the ‘●’ button
8 Select the “Id 6” function using ‘▶’, ‘◀’ Button :“StA” Push the
‘●’ button
9 System is operated after “88” is displayed on 7-SEG of the outdoor
unit main PCB.
10 Pipe detection process is proceeded.
11 5~30 minutes are required depending on the number of the indoor
units and outdoor temperature.
12 The number of the indoor units connected is displayed on7-Segment of the outdoor unit main PCB for about 1 minute
- For a HR unit, the number of the indoor units connected to each
HR unit is displayed.
- '200' is displayed in case of auto pipe detecting error, and auto
pipe detection process is completed after '88' is disappeared.
* Auto pipe detection function : the function that sets connection relationship automatically between the indoor unit and HR unit.
Manual pipe detection
1 Enter the central control address into each indoor unit using its
wired remote controller.
2 Turn No.1 of DIP s/w SW02M of HR unit PCB on.
3 Reset the power of HR unit PCB.
4 On the HR unit PCB, manually set address of each valve of the HR
5
6
7
8
unit to the central control address of the indoor unit connected to
the valve.
Reset the power of outdoor unit PCB.
The number of the indoor unit installed is displayed after about 5
minutes.
Ex) HR ‡ The number of the indoor
Reset the power of outdoor unit PCB, HR unit.
Manual pipe detection is completed
! WARNING
• In case that central controller is not installed, firstly set up central
controller’s setting to make address setting of indoor units.
• In case that central controller is installed, please set central control
address in wired remote control of indoor unit.
• HR unit’s manual pipe address is set by the central control adress of
indoor units.
• Address of valve which is not connected with indoor unit should be
set differently with the address of a valve which is indoor unit connected(If address is overlapped valve will not work preperly)
• If there occurs some error during pipe detection process,it means
pipe detection process is not properly finished.
• If an error occurred, it means that manual pipe setting is not completed.
• During 5 minutes after pipe detection process is completed, do not
turn off the main outdoor unit’s PCB to save the result of pipe detection automatically.
! WARNING
• Execute auto addressing and auto pipe detection again whenever the
indoor PCB and HR unit PCB is replaced.
- Operation error occurs unless power is supplied to the indoor and
HR units.
• Error No.200 occurs if the number of connected indoor units and that
of scanned indoor units are different.
• If auto pipe detection process fails, complete it with manual pipe detection (see Manual pipe detection part).
• If auto pipe detection process is completed normally, manual pipe
detection is not required.
• If you want to do auto pipe detection again after auto pipe detection
fails, do after reset of outdoor unit by all means.
• During 5 minutes after pipe detection is completed, do not turn off
the main unit PCB to save the result of pipe detection automatically.
Flow chart of auto pipe detection process
Confirm indoor unit’s address setting
Outdoor unit is operated for 5~60 minues.
Turn No.1 of DIP s/w SW02M of HR unit
PCB off.
Confirm that the setting of No.2, 3 of
SW02M corresponds with the valve
connecion type.
Dose the setting
status satisfy indoor unit’s
configuration properly
during operation?
YES
NO
Display error on outdoor unit PCB
Display error on HR unit PCB
Reset the power of HR unit PCB
Master Outdoor unit’s PCB DIP switch on :
No.5
Outdoor unit PCB : HR ơ HR unit
number ơ Valve number
HR unit : '200'
The number of indoor units detected is
displayed for 30 seconds on the outdoor
unit PCB after outdoor unit stopped
Check the HR unit and indoor unit
Select the mode using ‘ȯ’, ‘ȭ’ Button :
“Idu” Push the ‘Ɨ’ button
Select the “Id 5” function using ‘ȯ’, ‘ȭ’
Button :“Ath” or ”Atc” Push the ‘Ɨ’ button.
Outdoor temperature is over 15°C(59°F) :
Select “Atc” (If fails, use “Ath”)
Outdoor temperature is below 15°C(59°F) :
Select “Ath”(If it fail, use “Atc”)
Is the number of
indoor units connected
and displayed
one equal?
YES
Completion of auto pipe detection process
NO
Pipe detection error occurs for 30
seconds.
Check the installation of status of
outdoor, indoor, HR unit
Select the mode using ‘ȯ’, ‘ȭ’ Button :
“Idu” Push the ‘Ɨ’ button
Retry auto pipe detection process
after Fixing wrong installation
Select the “Id 6” function using ‘ȯ’, ‘ȭ’
Button :“StA” Push the ‘Ɨ’ button
Incompletion of auto detection
process
88' is displayed on 7-SEG of the outdoor
unit main PCB
* It is possible to be generated mode changing noise of
heating and cooling which is normal.
There is no mode changing noise at normal operation.
ENGLISH
Setting For Heat Recovery Unit
(Refer Only Heat Recovery Installation)
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ENGLISH
Example of manual valve addressing (Zoning
setting)
DIP-SW01
7-Segment
SW04C (X : cancel)
SW03C (ȯ: forward)
SW02C (ȭ: backward)
SW01C (Ɨ: Confirm /
Automatic Addressing)
SW01D (reset)
Flow chart of manual addressing for pipe detection
Execute in case of Auto pipe detection
failure
Wait for about 5 minutes.
Turn No.1 of SW02M of HR unit PCB on.
The number of the indoor units connected
is displayed.
Ex) HR रThe number of connected
indoor units
Reset the power of HR unit PCB.
Input the central control address at each
indoor unit using wired remote controller.
Is the number
of indoor units connected with the
outdoor unit and displayed
number equal?
Set the address of each valve manually
by referring indoor unit’s central control
address connected with.
YES
Reset the power of outdoor unit PCB.
Completion of manual pipe detection
process
NO
Check the central control address of
indoor and HR unit.
Make sure that reset the outdoor
Unit’s power after setting central
control address of indoor unit’s
(In case that an indoor unit of central control address "11" is connected
to a valve #1 of an HR unit)
Zoning control is connecting 2 or more indoor units at one pipe of HR
unit. In case of Zoning control, in order to set controls with multiple indoor units connection uses the rotary switch. Namely, only the rotary
switch changes from same valve set condition and set indoor units
connection.
1 On dip switch of the corresponding valves and sets the rotary
switch at 0.
2 Setting the number with tact switch.
3 In case of addition of indoor units to same port, increases 1 with the
rotary switch and sets number with tact switch.
4 In case of checking the number which the corresponding valve is
stored, turn on dip switch and set the number of rotary switch.
5 Indoor units set available 7 per a port(rotary switch 0~6), in case of
setting above of 7 with rotary switch, it will display error.
6 Setting the rotary switch on original condition(HR unit number set
conditions) after all finishing a piping setting.
7 The rotary switch set value of above number of indoor units which
is connected with FF and prevents a malfunction.
(Example: The case where 3 indoor units is connected in piping 1,
sets from rotary switch 0,1,2 and 3,4,5 with FF set)
- Prerequisite for manual valve addressing: central control address of
each indoor unit must be preset differently at its wired remote control.
No.
Example of manual valve addressing (NonZoning setting)
(In case that an indoor unit of central control address "11" is connected
to a valve #1 of an HR unit)
- Prerequisite for manual valve addressing: central control address of
each indoor unit must be preset differently at its wired remote control.
No.
Display and setup
1
7-SEG
SW01M
SW03M
SW04M
2
7-SEG
SW01M
SW03M
SW04M
3
7-SEG
SW01M
SW03M
SW04M
4
7-SEG
SW01M
SW03M
SW04M
5
7-SEG
SW01M
SW03M
SW04M
Display and setup
Setup and Contents
0
1
7-SEG
SW01M
SW03M
SW04M SW05M
0
2
7-SEG
SW01M
SW03M
SW04M SW05M
Setup and Contents
- Operation: None
- Display: None
- Operation: Turn dip S/W No.1 on to address valve #1
- Display: Existing value saved in EEPROM is displayed in 7-SEG.
- Operation: Set the digit of 10 to the
number in Group High data of the wired
remote control connected to the corresponding indoor unit to the valve #1 by
pressing left tack S/W.
- Display: Digit increasing with the times
of pressing tack S/W is displayed in left
7-SEG
- Operation: Set the digit of 1 to the number in Group Low data of the wired remote control connected to the
corresponding indoor unit to the valve
#1 by pressing right tack S/W.
- Display: Digit increasing with the times
of pressing tack S/W is displayed in
right 7-SEG
- Operation: Turn dip S/W No.1 off to
save the address of valve #1
- Display: "11" displayed in 7-SEG disappears
- Above setup must be done for all HR unit valves.
- The valve that is not connected with any indoor unit should be addressed with any other number than used address numbers of the
valves connected with indoor units.
(The valves does not work if the address numbers are same.)
0
3
7-SEG
SW01M
SW03M
SW04M SW05M
7-SEG
SW01M
SW03M
SW04M SW05M
1
4
1
5
7-SEG
SW01M
SW03M
SW04M SW05M
1
6
7-SEG
SW01M
SW03M
SW04M SW05M
0
7
7-SEG
SW01M
SW03M
SW04M SW05M
- Operation: None
- Display: None
- Operation : Turn dip S/W No.1 on to address valve #1
- Display : Existing value saved in EEPROM is displayed in 7-SEG.
- Operation : Set the digit of 10(1) to the
number in Group High data of the wired
remote control connected to the corresponding indoor unit to the valve #1 by
pressing left tack S/W.
- Display : Digit increasing with the times
of pressing tack S/W is displayed in left
7-SEG.
- Operation : SW05M : 1
- Display : Display former value.
- Operation : Setting No. using SW03M
and SW04M, SW05M : 1
- Display : Display setting value.
- Operation : Turn dip S/W No.1 off to
save the address of valve #1
- Display : "11" displayed in 7-SEG disappears.
- Operation : Return valve of addressing
HR unit.
- Display : None
- Above setup must be done for all HR unit valves.
- The valve that is not connected with any indoor unit should be addressed with any other number than used address numbers of the
valves connected with indoor units.
(The valves does not work if the address numbers are same.)
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Group Number setting
(In case that an indoor unit of central control address "11" is connected
to a valve #1 of an HR unit)
Group Number setting for Indoor Units
- Confirm the power of whole system(Indoor Unit, Outdoor Unit) is
OFF, otherwise turn off.
- The communication cables connected to CEN.A and CEN.B terminal
should be connected to central control of Outdoor Unit with care for
their polarity (A-A, B-B).
- Turn the whole system on.
- Set the group and Indoor Unit number with a wired remote control.
- To control several sets of Indoor Units into a group, set the group ID
from 0 to F for this purpose.
No.
Display and setup
Setup and Contents
7-SEG
SW01M
- Operation: Turn dip S/W No.1 on.
- Display: "11" is displayed in 7-SEG
7-SEG
SW01M
- Operation: Turn dip S/W No.1 on.
- 7-SEG disappeared
1
2
Identification of Manual Valve ID (Address)
No.
Display and setup
1
7-SEG
SW01M
Outdoor Units (External PCB)
Setup and Contents
- Operation: more than 2 dip switches
turned on.
- Display: "Er" is displayed in 7-SEG
SODU.B SODU.A
IDU.B
IDU.A
CEN.B
B(D)
Method of checking the pipe detection result
at outdoor unit
1 Wait for 5 minutes, after Pipe detection is completed.
2 Turn on the No.10,14,16 DIP S/W of SUB PCB at master unit
3 Check the data on 7- segment, switching rotary 01,02.
ROTARY 01 ROTARY 02
CEN.A
DRY1
DRY2
GND
12V
A(C)
Example) Group number setting
1 F
Group Indoor unit
1st number indicate the group number
2nd number point out indoor unit number
0
0
Group recognizing the central controller
No.0 group (00~0F)
No.1 group (10~1F)
No.2 group (20~2F)
No.3 group (30~3F)
No.4 group (40~4F)
No.5 group (50~5F)
No.6 group (60~6F)
No.7 group (70~7F)
No.8 group (80~8F)
No.9 group (90~9F)
No. A group (A0~AF)
No. B group (B0~BF)
No. C group (C0~CF)
No. D group (D0~DF)
No. E group (E0~EF)
No. F group (F0~FF)
The connected port number of HR
unit
The connected HR unit number
The auto addressing number of indoor unit (digit of 1)
The auto addressing number of indoor unit (digit of 10)
Setting method of Master indoor unit in zoning
1 Turn dip switch 5,6,10 on at system off.
2 Set the left Ratary switch for HR unit.(Rotary switch No. "0" ‘ HR
unit No. "1")
3 Set the right Ratary switch for IDU unit.(Rotary switch No. "0" ‘ HR
unit branch No. "1")
4 Display the Master IDU No. of the HR unit on 7segment.(Default
display is "00" on 7segment)
5 Press the black button.(The IDU No. increase every 1 second in the
zoning )
6 Set the Master IDU(Press the red button during 1.5seconds stop
twinkling)
ROTARY 01 ROTARY 02
7 segment
! WARNING
• Valve address and central control address of its corresponding indoor unit should be set identical in manual addressing.
EX)
0
0
HR unit
No. of Indoor unit.
No. of HR unit branch.
No. of HR unit.
! CAUTION
• Waiting for 80seconds after power on.
• The zoning information and Master IDU information remove from
EEPROM after Auto-addressing.
• If there is installed the central control, it is impossible setting of
Master IDU in zoning.
Valve (04)
Valve (03)
Valve (02)
Valve (01)
Indoor unit (04)
Indoor unit (03)
Indoor unit (02)
Indoor unit (01)
Central control address
Setting the optional function
Select the mode/function/option/value using ‘▶’, ‘◀’ Button and confirm that using the ‘●’ button after dip switch No.5 is turned on.
DIP-SW01
7-Segment
SW04C (X : cancel)
SW03C (ȯ: forward)
SW02C (ȭ: backward)
SW01C (Ɨ: Confirm /
Automatic Addressing)
SW01D (reset)
ENGLISH
Example of checking valve address
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ENGLISH
Optional Mode Selection
Content
FDD
Display (◎)
Fdd
Function Selection
Content
Automatic Refrigerant
Charging (Cooling)
Automatic Refrigerant
Charging (Heating)
Refrigerant Amount
Check (Cooling)
Refrigerant Amount
Check (Heating)
ITR
(Cooling, Heating)
All IDU operation
(Cooling)
All IDU operation
(Heating)
Cool & Heat Selector
High Static Pressure
Compensation
mode
Night Low Noise
mode
Overall Defrost
mode
ODU address setting
Snow Removal &
Rapid Defrost
Airflow Adjusting
for IDU (Heating capacity up)
Target Pressure Adjusting
Low Ambient Kit
Installation
Func
High Efficiency
Mode (Cooling Operation)
Auto Dust Removal
Mode
Compressor Max.
Frequency Limit
ODU Fan Max.
RPM Limit Mode
settting
Smart Load Control
Mode setting
Humidity Reference
Mode setting
Central Control Connection at Indoor
Unit side
Compressor Input
Current Limit mode
Power Consumption Display on
wired remote controller
Overall Defrost Operating in Low temperature (Heating)
Optional Base panel
Heater
! CAUTION
Option Selection
Display
(◀, ▶ ’ ◎)
Default
Optional
(◀, ▶ ’ ◎)
Fd 1
-
-
Fd 2
-
-
Fd 3
-
-
Fd 4
-
-
Fd 7
-
-
Fd 8
-
-
Fd 9
-
-
Fn 1
oFF
oFF,
oP1~oP2
Fn 2
oFF
oFF,
oP1~oP3
Fn 3
oFF
oFF,
oP1~oP12
Fn 4
North America: oFF
Europe: oFF
Tropical: oN
on, oFF
Remarks
• To perform the otional funtion should be sure that All the IDU is off
mode, unless the function will not be performed.
* Refer FDD
guidance
Cool & Heat selector
Mode setting method
Master unit PCB DIP switch on : No.5
Fn 5
Compulsory
Operation for
1 hour
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Fn1” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“oFF”,“op1”,“op2” Push the ‘●’ button
Cool & Heat Selection mode is set
0
254
Fn 6
oFF
oFF,
oP1~oP3
Fn 7
oFF
on, oFF
Fn 8
oFF
oFF,
oP1~oP6
Fn 9
oFF
Fn 10
oFF
Fn 11
oFF
Fn 12
oFF
Fn 13
oFF
oFF,
oP1~oP7
Fn 14
oFF
oFF,
oP1~oP3
Fn 16
on
on, oFF
Fn 19
oFF
oFF, on
Fn 20
oFF
oFF,
oP1~oP10
Fn 21
SPL0
SPL0, SPL1
[Pd10~Pd11]
Fn 22
oFF
on, oFF
Fn 23
oFF
on, oFF
Function setting
Switch Control
User
Idu
Comfort Cooling
Mode setting
Id 10
EAch
Service
SvC
Vaccum Mode
SE 3
vACC
Function
Switch
(Up)
Switch
(Down)
oFF
op1(mode)
op2(mode)
Right side
(On)
Left side
(On)
Not operate
Cooling
Cooling
on, oFF
Right side
(On)
Right side
(On)
Not operate
Heating
Heating
on, oFF
Left side
(Off)
-
Not operate
Fan mode
Off
oFF,
oP1~oP5
oFF,
oP1~oP9
Saving in
EEPROM
* Refer ComSaving in
fort Cooling
EEPROM
guidance
1time / 1 Selection
* Functions save in EEPROM will be maintained continuously, though
the system power was reset.
Left side
Right side
Switch (Up)
Switch (Down)
! CAUTION
• Ask an authorized technician to setting a function.
• If do not use a function, set an off-mode.
• If use a function, first install a Cool & Heat selector.
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Time Settings
Step
op1
op2
op3
op4
op5
op6
op7
op8
op9
op10
op11
op12
This function secures the air flow rate of ODU, in case static pressure
has been applied like using duct at fan discharge of ODU.
Static pressure compensation mode setting method
Master unit PCB DIP switch on : No.5
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Fn2” Push the ‘●’ button
Judgment Time(Hr)
Operation Time(Hr)
8
9
6.5
10.5
5
12
8
9
6.5
10.5
5
12
8
9
6.5
10
5
12
Continuous operation
Continuous operation
Continuous operation
Noise
Chassis
Capacity
Step
op1~op3,op10
op4~op6,op11
op7~op9,op12
Select the Option using ‘▶’, ‘◀’ Button :
“oP1~oP3” Push the ‘●’ button
Start the Static pressure compensation mode :
Save the selected option value in EEPROM
Max. RPM
55
52
49
UXB
14~20hp
Noise(dBA)
59
56
53
! CAUTION
FAN Maximum RPM of each step
Chassis
UXA
8~12hp
• Request installer to set the function during installation.
• If ODU RPM changes, cooling capacity may go down.
UXA
UXB
Standard
880
1000
Overload / Low
Temperature
880
1150
Overall defrost mode
op1
910
1040
Mode setting method
op2
930
1070
op3
950
1100
Night Low Noise Function
In cooling mode, this function makes the ODU fan operate at low RPM
to reduce the fan noise of ODU at night which has low cooling load.
Master unit PCB DIP switch on : No.5
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Fn4” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“on” ~ “oFF” Push the ‘●’ button
Night low noise function setting method
Overall defrost mode is set
Master unit PCB DIP switch on : No.5
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Fn3” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“op1~op12” Push the ‘●’ button
Mode setting
- on: Operate overall defrost
- off: Operate partial defrost
! CAUTION
• Ask an authorized technician to setting a function.
Setting the ODU address
Mode setting method
Start the Night low noise function :
Save the selected option value in EEPROM
Master unit PCB DIP switch on : No.5
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Fn5” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“0” ~ “255” Push the ‘●’ button
ODU address is set
22~26hp
60
57
55
ENGLISH
High Static Pressure Compensation mode
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 46
46
ENGLISH
Target pressure adjusting
! CAUTION
• Ask an authorized technician to setting a function.
• If use a function, first install a Central controller.
Snow removal & rapid defrost
Mode setting method
Mode setting method
Master unit PCB DIP switch on : No.5
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Fn8” Push the ‘●’ button
Master unit PCB DIP switch on : No.5
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“HEAT” , “COOL” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Fn6” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“op1” ~ “op4” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“oFF”,“op1” ~ “op3” Push the ‘●’ button
Target pressure is set
Setting
Mode is set
Mode
Mode setting
Heat
op1 Increase capacity
setting
Mode
oFF
Not setting
op1
Snow removal mode
op2
Rapid defrost mode
op3
Snow removal mode. + Rapid defrost mode.
! CAUTION
op2
op3
op4
Condensing Evaporating
temperature temperature
Cool
variation
variation
+2°C
-3°C
Increase capacity
(35.6°F)
(37.4°F)
+2°C
-1.5°C
Increase capacity
(35.6°F)
(-34.7°F)
Decrease power
-4°C
+2.5°C
consumption
(-39.2°F)
(36.5°F)
Decrease power
-6°C
-4.5°C
consumption
(-42.8°F)
(-40.1°F)
Purpose
Decrease power
consumption
Decrease power
consumption
Decrease power
consumption
! CAUTION
• Ask an authorized technician to setting a function.
• If do not use a function, set an off-mode.
Setting Capacity Up Airflow Adjusting for IDU
(Heating)
If the operation of indoor unit is more than 130%, the air flow is operated as low in the all indoor units.
Mode setting method
Master unit PCB DIP switch on : No.5
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Fn7” Push the ‘●’ button
• Ask an authorized technician to setting a function.
• If do not use a function, set an off-mode.
• Change a power consumption or capacity.
Low Ambient Kit
Mode setting method
Master unit PCB DIP switch on : No.5
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Fn9” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“on”,“oFF” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“on” ~ “oFF” Push the ‘●’ button
Low Ambient Kit Mode is set
IDU capacity adjusting is set
h Reference for functional logic of I/O Module
Step
OFF
ON
Mode
Not setting
Low capacity mode
! CAUTION
• Ask an authorized technician to setting a function.
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 47
47
Compressor Max. Frequency Limit
Target low pressure will change according to ODU temperature during
the cooling operation.
Mode setting method
Mode setting method
Master unit PCB DIP switch on : No.5
Master unit PCB DIP switch on : No.5
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Fn 12” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Fn10” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“oFF”,“op1”,“op9” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“on”,“oFF” Push the ‘●’ button
Cool & Heat Selection mode is set
High Efficiency Mode is set
Function setting
Auto Dust Removal Mode
The ability to set reverse run outdoor fan to remove dust, heat exchanger.
Mode setting method
Master unit PCB DIP switch on : No.5
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Fn11” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“oFF”,“op1”~“op5” Push the ‘●’ button
Setting
oFF
op1
op2
op3
op4
op5
op6
op7
op8
op9
! CAUTION
• Ask an authorized technician to setting a function.
• If use a function, first install a Central controller.
Auto Dust Removal Mode is set
Mode Setting
Setting
op1
Operation Operating Repeat
time
time
cycle
Stop
+2hour
5minutes
2hour
Detail of function
After product stopped 2 hour, fan operating
5min(Repeated every 2 hours)
op2
after product stopped 5 minutes, fan operatstop
Twice in
3minutes
ing 3min (Limited to two times within 2
+5minutes
2 hour
hours)
op3
stop
after product stopped 2 hour, fan operating
3minutes 1 time
+5minutes
5min(Repeated every 2 hours)
op4
after product stopped 5 minutes, fan operatStop
1minutes 1 time ing 3min(when io module connection/one+1minutes
time operation)
op5
Stop
1minutes
+1minutes
Low
speed
Inverter (Hz)
143 Hz
135 Hz
128 Hz
120 Hz
113 Hz
105 Hz
98 Hz
90 Hz
83 Hz
after product stopped 1minutes, fan operating
1min(every time the product stops)
ODU Fan Max. RPM Limit
Mode setting method
Master unit PCB DIP switch on : No.5
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Fn13” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“oFF”,“op1”~“op7” Push the ‘●’ button
ODU Fan Max. RPM Limit Mode is set
ENGLISH
High Efficiency Mode (Cooling Operation)
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 48
48
ENGLISH
MAX. RPM Limit Setting
Chassis
Fan MAX. RPM
Limit (RPM)
UXA
880
-20
-40
-60
-80
-100
-120
-140
oFF
oP1
oP2
oP3
oP4
oP5
oP6
oP7
UXB
1000
-50
-100
-150
-200
-250
-300
-350
Mode setting
- on:using humidity sensor
- oFF:not setting
<Using of humidity sensor>
- When used cooling operation of SLC function,it will improve energy
effcience because evaporation temperature wll be decreased
- When used heating operation in case of high humidity condition, deforest will be delayed because target high/low pressure will be
changed.
SLC (Smart Load Control)
Central Control Connection at Indoor Unit side
Function for set the variable target pressure which for the high efficiency and comport operation depend on ODU load.
Mode setting method
Mode setting method
Master unit PCB DIP switch on : No.5
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Fn14” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“oFF”,“op1”~“op3” Push the ‘●’ button
Master unit PCB DIP switch on : No.5
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Fn16” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“Fn19” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“on”,“oFF” Push the ‘●’ button
SLC(Smare Lode Control) Mode is set
Central Control Connection at Indoor
Unit side Mode is set
SLC(Smare Lode Control) Mode
Setting
oFF
oP1
oP2
oP3
Mode
Not Setting
Smooth Mode
Normal Mode
Peak Mode
Detail of function
Slowly control, a target pressure value
Normal control, a target pressure value
Fast control, a target pressure value
Compressor Input Current Limit
System Input Current Control
Mode setting method
Master unit PCB DIP switch on : No.5
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Humidity Reference
Mode setting method
Select the Function using ‘▶’, ‘◀’ Button :
“Fn20” Push the ‘●’ button
Master unit PCB DIP switch on : No.5
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“oFF”,“op1”~”op10” Push the ‘●’ button
Compressor Input Current Limit mode is set
Select the Function using ‘▶’, ‘◀’ Button :
“Fn16” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“oFF”,“on” Push the ‘●’ button
Humidity Reference Control mode is set
Compressor Input Current Limit
Mode
op1
op2
op3
op4
op5
op6
op7
op8
op9
op10
Compressor Input Current Limit
95%
90%
85%
80%
75%
70%
65%
60%
55%
50%
The current limits of each Compressor
Ex)16A Set op6 >11.2A
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 49
49
• Ask an authorized technician to setting a function.
• If do not use a function, set an off-mode.
• If use a function, capacity may go down.
Power Consumption Display on wired remote
controller
Master unit PCB DIP switch on : No.5
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Fn23” Push the ‘●’ button
Mode setting method
Master unit PCB DIP switch on : No.5
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Fn21” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“SPL0”,“SPL1”,”Pd10”,”Pd11”Push the ‘●’
button
Power Consumption Display on wired remote
controller Mode is set
Setting
Detail of function
SPL0
Not used Smart plug logic
SPL1
Using smart plug logic
Pd10
Not installation
Pd11
PDI was installed
Overall Defrost Operating in Low temperature
(Heating)
Mode setting method
Master unit PCB DIP switch on : No.5
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Fn21” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Fn22” Push the ‘●’ button
Overall Defrost Operating in Low Mode is set
Setting
Detail of function
Defualt
OFF
Setting
ON/OFF Control
Select the Option using ‘▶’, ‘◀’ Button :
“oFF”,“on” Push the ‘●’ button
Base pan Heater operation mode is set
! CAUTION
• Function to prevent freezing of ODU base pan in a cold area.
• Heater is accesory.(Sold separately)
Comfort Cooling operation
It is function to reduce the ODU energy consumption by the continuous operation without thermo off.
Mode setting method
Master unit PCB DIP switch on : No.5
Select the mode using ‘▶’, ‘◀’ Button :
“Idu” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Id10” Push the ‘●’ button
EEV pulse appearing
(seg1, seg2:Idu No./seg3, seg4:Mode)
Select the Function using ‘▶’, ‘◀’ Button :
Idu No. setting and Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
Mode setting and Push the ‘●’ button
*Mode can be set 0~3 (”0” is no setting)
Setting of continous cooling operation
Setting of continous cooling operation
Mode setting
0
1
2
3
Effect
No setting
Cooling capacity low,Power consumption low
Cooling capacity mid,Power consumption mid
Cooling capacity high,Power consumption high
ENGLISH
Base pan Heater operation
! CAUTION
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 50
50
Error Indicator
- This function indicates types of failure in self-diagnosis and occurrence of failure for air condition.
- Error mark is displayed on display window of indoor units and wired remote controller, and 7-segment LED of outdoor unit control board as
shown in the table.
- If more than two troubles occur simultaneously, lower number of error code is first displayed.
- After error occurrence, if error is released, error LED is also released simultaneously.
Error Display
1st,2nd,3rd LED of 7-segment indicates error number, 4th LED indicates unit number.(* = 1: Master, 2: Slave 1, 3: Slave 2, 4: Slave 3)
Ex) 1051 : Error occurrence with error number 105 at No. 1 outdoor unit (=Master unit)
In case of indoor unit error occurrence, the error number is only shown at remote controller
without 7 segment LED of outdoor unit.
Ex) CH → 01 : Error occurrence with error number 01 (at remote controller)
In case of compressor error occurrence, 7 segment LED of outdoor unit control board
will display its error number alternately with compressor number.
Ex) 213 → C23 : It means that compressor error occurred with Error No. 21 at No. 3 Outdoor unit (=Slave2)
Repeat
Error No.
Error No. of Unit
Error No. of Compressor
* Refer to the DX-Venitilation manual for DX-Venitilation error code.
Indoor unit related error
Display
Outdoor unit related error
ENGLISH
Self-Diagnosis Function
Title
Cause of Error
0
1
-
Air temperature sensor of indoor unit
Air temperature sensor of indoor unit is open or short
0
2
-
Inlet pipe temperature sensor of indoor unit
Inlet pipe temperature sensor of indoor unit is open or short
0
3
-
Communication error : wired remote controller ÷
indoor unit
Failing to receive wired remote controller signal in indoor unit PCB
0
4
-
Drain pump
Malfunction of drain pump
0
5
-
Communication error : outdoor unit ÷ indoor unit
Failing to receive outdoor unit signal in indoor unit PCB
0
6
-
Outlet pipe temperature sensor of indoor unit
Outlet pipe temperature sensor of indoor unit is open or short
0
8
-
Hydro Kit Hot water storage tank Temperature
sensor
Pipe temperature sensor is open or short
0
9
-
Indoor EEPROM Error
In case when the serial number marked on EEPROM of
Indoor unit is 0 or FFFFFF
1
0
-
Poor fan motor operation
Disconnecting the fan motor connector / Failure of indoor
fan motor lock
1
1
-
Communication error : Hydro Kit Indoor unit ÷
Inv.PCB
Failing to receive Inv. PCB signal in indoor unit
1
2
-
Hydro Kit Inv.PCB error
Hydro Kit Inv.PCB error
1
3
-
Hydro Kit Solar heat piping temperature sensor
error
Pipe temperature sensor is open or short
1
4
-
Hydro Kit Indoor unit Flow switch error
Flow switch flow detection error
1
5
-
Hydro Kit Liquid pipe Strange overheat Error
Temperature sensor defective or hot water inflow
1
6
-
Hydro KitIndoor unit Inlet and Outlet pipe Temperature sensor Error
Pipe temperature sensor is open or short
1
7
-
Hydro Kit Indoor unit Inlet pipe Temperature sensor Error
Outside air Introduction duct Inlet pipe Temperature sensor Error
Pipe temperature sensor is open or short
1
8
-
Hydro Kit Indoor unit Outlet pipe Temperature sensor Error
Pipe temperature sensor is open or short
2
1
*
Outdoor Unit Inverter Compressor IPM Fault
Outdoor Unit Inverter Compressor Drive IPM Fault
Outdoor Unit Inverter PCB Input Current excess (RMS)
2
2
*
Inverter PCB Input Over Current(RMS) of Master
Outdoor Unit
2
3
*
Outdoor Unit Inverter Compressor DC Link Low or
High Voltage
System is turned off by Master Outdoor Unit DC Link Low/High
Voltage.
2
4
*
Outdoor Unit High Pressure Switch
System is turned off by Master Outdoor Unit high pressure switch.
2
5
*
Outdoor Unit Input Voltage High/ Low Voltage
Over 537V or below 247V (ARUM***LTE5)
Over 310V or below 143V (ARUM***BTE5)
Over 598V or below 320V (ARUM***DTE5)
• 1 : Master outdoor unit error, 2 : salve 1 outdoor unit error
• 3 : slave2 outdoor unit error, 4 : slave3 outdoor unit error
1,MFL67221433,영어 2017. 7. 5. 오전 10:31 페이지 51
51
Outdoor unit related error
Title
Cause of Error
2
6
*
Outdoor Unit Inverter Compressor Start Failure
The first start failure by Outdoor Unit Inverter Compressor abnormality or Compressor locked
2
9
*
Outdoor Unit Inverter Compressor Over Current
Outdoor Unit Inverter Compressor Fault OR Drive Fault
3
2
*
Outdoor Unit Inverter Compressor1 High Discharge Temperature
Outdoor Unit Inverter Compressor1 High Discharge Temperature
3
3
*
Outdoor Unit Inverter Compressor2 High Discharge Temperature
Outdoor Unit Inverter Compressor2 High Discharge Temperature
3
4
*
High Pressure of Outdoor Unit
High Pressure of Outdoor Unit
3
5
*
Low Pressure of Outdoor Unit
Low Pressure of Outdoor Unit
4
0
*
Outdoor Unit Inverter Compressor CT Sensor Fault
Outdoor Unit Inverter Compressor CT Sensor open or short
4
1
*
Outdoor Unit Inverter Compressor1 Discharge
Temperature Sensor Fault
Outdoor Unit Inverter Compressor Discharge Temperature Sensor open or short
4
2
*
Outdoor Unit Low Pressure Sensor Fault
Outdoor Unit Low Pressure Sensor open or short
4
3
*
Outdoor Unit High Pressure Sensor Fault
Outdoor Unit High Pressure Sensor open or short
4
4
*
Outdoor Unit Air Temperature Sensor Fault
Outdoor Unit Air Temperature Sensor open or short
4
5
*
Outdoor Unit Heat Exchanger Temperature Sensor
(Front side) Fault
Outdoor Unit Heat Exchanger Temperature Sensor(Front side)
open or short
4
6
*
Outdoor Unit Suction Temperature Sensor Fault
Outdoor Unit Suction Temperature Sensor open or short
4
7
*
Outdoor Unit Inverter Compressor2 Discharge
Temperature Sensor Fault
Outdoor Unit Inverter Compressor2 Discharge Temperature Sensor open or short
4
9
*
Outdoor Unit Faulty IPM Temperature Sensor
Outdoor Unit IPM Temperature Sensor short/open
5
0
*
Omitting connection of R, S, T power of Outdoor
Unit
Omitting connection of outdoor unit
5
1
*
Excessive capacity of indoor units
Excessive connection of indoor units compared to capacity of Outdoor Unit
5
2
*
Communication error : inverter PCB ’ Main PCB
Failing to receive inverter signal at main PCB of Outdoor Unit
5
3
*
Communication error : indoor unit ’ Main PCB of
Outdoor Unit
Failing to receive indoor unit signal at main PCB of Outdoor Unit.
5
7
*
Communication error : Main PCB ’ inverter PCB
Failing to receive signal main PCB at inverter PCB of Outdoor Unit
6
0
*
Inverter PCB EEPROM Error of Master Outdoor Unit
Access Error of Inverter PCB of Outdoor Unit
6
2
*
Outdoor Unit Inverter Heatsink High Temperature
System is turned off by Outdoor Unit Inverter Heatsink High Temperature
6
5
*
Outdoor Unit Inverter Heatsink Temperature Sensor Fault
Outdoor Unit Inverter Heatsink Temperature Sensor open or
short
6
7
*
Outdoor Unit Fan Lock
Restriction of Outdoor Unit
7
1
*
Inverter CT Sensor Error of Master Outdoor Unit
Inverter CT Sensor open or short of Outdoor Unit
7
5
*
Outdoor Unit Fan CT Sensor Error
Outdoor Unit Fan CT Sensor open or short
7
7
*
Outdoor Unit Fan Over Current Error
Outdoor Unit Fan Current is over 6A
7
9
*
Outdoor Unit Fan Start Failure Error
The first start failure by Outdoor Unit Fan abnormality or Fan
locked
8
6
*
Outdoor Unit Main PCB EEPROM Error
Communication Fail Between Outdoor Unit Main MICOM and EEPROM or omitting EEPROM
8
7
*
Outdoor Unit Fan PCB EEPROM Error
Communication Fail Between Outdoor Unit Fan MICOM and EEPROM or omitting EEPROM
1
0
4
*
Communication Error Between Outdoor Unit and
Other Outdoor Unit
Failing to receive Slave Unit signal at main PCB of Outdoor Unit
1
0
5
*
Outdoor Unit Fan PCB Communication Error
Failing to receive fan signal at main PCB of Outdoor unit
1
0
6
*
Outdoor Unit Fan IPM Fault Error
Instant Over Current at Outdoor Unit Fan IPM
ENGLISH
Display
1,MFL67221433,영어 2017. 7. 5. 오전 10:32 페이지 52
52
ENGLISH
Network error HR Unit related error
Outdoor unit related error
Display
Title
Cause of Error
1
0
7
*
Outdoor Unit Fan DC Link Low Voltage Error
Outdoor Unit Fan DC Link Input Voltage is under 380V
1
1
3
*
Outdoor Unit Liquid pipe Temperature Sensor Error
Liquid pipe temperature sensor of Outdoor Unit is open or short
1
1
4
*
Outdoor Unit Subcooling Inlet Temperature Sensor Error
Outdoor Unit Subcooling Inlet Temperature Sensor Error
1
1
5
*
Outdoor Unit Subcooling Outlet Temperature Sensor Error
Outdoor Unit Subcooling Outlet Temperature Sensor Error
1
1
6
*
Outdoor Unit Oil Level Sensor Error
Oil Level Sensor of Outdoor Unit is open or short
1
4
5
*
Outdoor unit Main Board - External Board communication Error
Outdoor unit Main Board - External Board communication Error
1
5
0
*
Outdoor Unit Discharge Superheat not satisfied
Outdoor Unit Compressor Discharge Superheat not satisfied during 5 Min.
1
5
1
*
Failure of operation mode conversion at Outdoor
Unit
Failure of operation mode conversion at Outdoor Unit
1
5
3
*
Outdoor Unit Heat Exchanger Temperature Sensor (upper part) Fault
Outdoor Unit Heat Exchanger Temperature Sensor (upper part)
Fault
1
5
4
*
Outdoor Unit Heat Exchanger Temperature Sensor (lower part) Fault
Outdoor Unit Heat Exchanger Temperature Sensor(lower part)
open or short
1
8
2
*
Outdoor unit External Board Main-Sub Micom
communication Error
Outdoor Unit Main Board Main-Sub Micom communication
failed
1
8
7
*
Hydro - Kit P,HEX bursting error
Inlet water temperature is below 5 degree or water temperature
error during defrosting operation.
1
9
3
*
Outdoor Unit Fan Heatsink High Temperature
System is turned off by Outdoor Unit Fan Heatsink High Temperature
1
9
4
*
Outdoor Unit Fan Heatsink Temperature Sensor
Fault
Outdoor Unit Fan Heatsink Temperature Sensor open or short
2
0
0
1
Searching pipe Error
Failure of automatic addressing of valves
2
0
1 C + #HR HR unit1 Liqiud sensor error
Liquid pipe sensor of HR unit open or short
2
0
2 C + #HR HR unit1 Sub Cooling Pipe sensor error
Sub Cooling Pipe In sensor of HR unit open or short
2
0
3 C + #HR HR unit1 Sub Cooling Pipe Out sensor error
Sub Cooling Pipe Out sensor of HR unit. open or short
2
0
4 C + #HR Communication error
Failing to receive HR unit signal at outdoor unit
2
4
2
Communication wiring defect
*
C: HR unit
#: HR unit Number
Network error of cntral controller
1,MFL67221433,영어 2017. 7. 5. 오전 10:32 페이지 53
53
Calculate refrigerant concentration
The installer and system specialist shall secure safety against leakage
according to local regulations or standards.
The following standards may be applicable if local regulations are not
available.
Total amount of replenishedrefrigerant in refrigerant facility [kg(lbs)]
= Maximum concentration limit
Volume of smallest room
[kg/m3 (lbs/ft3)]
whereindoor unit is installed
[m3(ft3)]
(R410A)
Introduction
Though the R410A refrigerant is harmless and incombustible itself ,
the room to equip the air conditioner should be large to such an extent
that the refrigerant gas will not exceed the Concentration limit even if
the refrigerant gas leaks in the room.
Concentration limit
Concentration limit is the limit of Freon gas concentration where
immediate measures can be taken without hurting human body
when refrigerant leaks in the air. The Concentration limit shall be
described in the unit of [kg/m3 (lbs/ft3)] (Freon gas weight per unit
air volume) for facilitating calculation.
Concentration limit: 0.44 kg/m3 (0.028 lbs/ft3) (R410A)
Outdoor unit
(No.1 system)
- In case the result of calculation exceeds the Concentration limit, perform the
same calculations by shifting to the second smallest, and the third smallest
rooms until at last the result is below the Concentration limit.
In case the concentration exceeds the limit
When the concentration exceeds the limit, change original plan or take
one of the countermeasures shown below:
• Countermeasure 1
Provide opening for ventilation.
Provide 0.15% or More size of opening to floor space both above
and below door, or provide opening without door.
• Countermeasure 2
Provide gas leak alarm linked with mechanical ventilator.
• Countermeasure 3
Reducing the outdoor refrigerant qty. by deviding into smaller separate system.
Flow of
refrigerant
Countermeasure 2
Indoor unit
Gas leak alarm
Mechanical ventilator
Room where refrigerant leaks
(Refrigerant of the whole No.1
system flows out.)
Indoor unit
Checking procedure of limiting concentration
Check Concentration limit along following steps and take appropriate
measure depending on the situation.
Calculate amount of all the replenished refrigerant [kg (lbs)] per each
refrigerant system.
Amount of pre charged
refrigerant per single unit
system
+
Amount of additional = Total amount of
replenished refrigerant refrigerant in the system
[kg (lbs)]
Countermeasure 1 Opening effective to ventilation
Amount of replenished
refrigerant at factory shipment
Note : In case one refrigerant facility is
divided into 2 or more refrigerant
systems and each system is
independent, amount of replenished
refrigerant of each system shall be
adopted.
Amount of additionally
replenished refrigerant
depending on piping
length or piping
diameter by customer
Calculate minimum room capacity
Calculate room capacity by regarding a portion as one room or the
smaller room.
- Without partition
- With partition and with opening
which serve as passage of air to
adjoining room
Outdoor unit
Indoor unit
Outdoor unit
Indoor unit
Opening
Partition
In the case of opening
without door , or 0.15
% or more openings
(to floor space) both
above and below door)
- With partition and without opening which serve as passage of air to
adjoining room
Outdoor unit
Indoor unit
Smallest
room
Pay a special attention to the place, such as a basement, etc.
where refrigerant can stay, since refrigerant is heavier than air.
ENGLISH
CAUTION FOR REFRIGERANT LEAK
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54
ENGLISH
INSTALLATION GUIDE AT THE
SEASIDE
Model Designation
Product information
• Product Name : Air conditioner
• Model Name :
! CAUTION
• Air conditioners should not be installed in areas where corrosive
gases, such as acid or alkaline gas, are produced.
• Do not install the product where it could be exposed to sea wind
(salty wind) directly. It can result corrosion on the product.
Corrosion, particularly on the condenser and evaporator fins,
could cause product malfunction or inefficient operation.
• If outdoor unit is installed close to the seaside, should avoid
direct exposure to the sea wind.
Selecting the location(Outdoor Unit)
Product Sales Name
Model Factory Name
ARUx***LTy5 series
= N (Heat Pump), V (Cooling Only), M (Heat Recovery / Heat Pump)
= S (Basic function),
E (Additional function related to performance)
*** = Numeric; (Cooling capacity)
x
y
• Additional information : Serial number is refer to the bar code on the
product.
If the outdoor unit is to be installed close to the seaside, direct exposure to the sea wind should be avoided. Install the outdoor unit on the
opposite side of the sea wind direction.
Airborne Noise Emission
Sea wind
The A-weighted sound pressure emitted by this product is below 70
dB.
** The noise level can vary depending on the site.
The figures quoted are emission level and are not necessarily safe
working levels.
Whilst there is a correlation between the emission and exposure levels, this cannot be used reliably to determine whether or not further
precautions are required.
Sea wind
Factor that influence the actual level of exposure of the workforce include the characteristics of the work room and the other sources of
noise, i.e. the number of equipment and other adjacent processes and
the length of time for which an operator exposed to the noise. Also,
the permissible exposure level can vary from country to country.
This information, however, will enable the user of the equipment to
make a better evaluation of the hazard and risk.
In case, to install the outdoor unit on the seaside, set up a windbreak
not to be exposed to the sea wind.
Windbreak
Sea wind
- It should be strong enough like concrete to prevent the sea wind
from the sea.
- The height and width should be more than 150% of the outdoor unit.
- It should be kept more than 70 cm (2.3 ft) of distance between outdoor unit and the windbreak for smooth air flow.
Select a well-drained place.
• Periodic ( 1times per 6 month) cleaning of the dust or salt
particles stuck on the heat exchanger is necessary by using clean
water
1,MFL67221433,영어 2017. 7. 5. 오전 10:30 페이지 80
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