ARUN100LN3
INSTALLATION MANUAL
AIR CONDITIONER
• 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.your set and retain it for future reference.
P/NO : MFL67221402
www.lg.com
MODELS : ARUN Series
ARUV Series
ARUN/ARUV Series Outdoor unit Installation Manual
TABLE OF CONTENTS
Safety Precautions ................................................................................................................3
Installation Process ..............................................................................................................7
Outdoor units Information....................................................................................................8
Environment-friendly Alternative Refrigerant R410A .....................................................14
Select the Best Location ....................................................................................................14
Installation Space................................................................................................................15
Lifting method .....................................................................................................................17
Installation ...........................................................................................................................18
Refrigerant piping installation ...........................................................................................23
Pipe connections between indoor and outdoor unit.......................................................27
Electrical Wiring ..................................................................................................................53
Test Run ...............................................................................................................................85
New Function ....................................................................................................................111
Caution For Refrigerant Leak...........................................................................................120
Installation guide at the seaside......................................................................................122
2 Outdoor Unit2 Outdoor Unit
Safety Precautions
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions
must be followed.
n Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is
classified by the following indications.
n Meanings of symbols used in this manual are as shown below.
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to properties only.
Be sure not to do.
Be sure to follow the instruction.
n 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.
Do not install, remove, or re-install the unit
by yourself (customer).
• There is risk of fire, electric shock, explosion, or
injury.
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.
Installation Manual 3
Safety Precautions
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.
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.
■ 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 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.
When the product is soaked (flooded or
submerged), contact an Authorized Service Center.
• There is risk of fire or electric shock.
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.
■ 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.
4 Outdoor Unit4 Outdoor Unit
Safety Precautions
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.
n 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.
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.
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.
Installation Manual 5
6 Outdoor Unit6 Outdoor Unit
Safety Precautions
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.
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.
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.
Installation Process
Installation Process
The foundation must be level even
Outdoor unit foundation work
Avoid short circuits and ensure
sufficient space is allowed for service
Installation of outdoor unit
Refer to automatic addressing flowchart
Automatic addressing of indoor unit
In the final check for 24hours at 3.8 MPa(38.7 kgf/cm
2
) there must be no drop in pressure.
Airtight test
Multiple core cable must not be used.
(suitable cable should be selected)
Electrical work
(connection circuits and drive circuits)
Make sure no gaps are left where
the insulating materials are joined
Heat insulation work
Make sure airflow is sufficient
Duct work
Adjust to downward gradient
Drain pipe work
Special attention to dryness,
cleanness and tightness
Refrigerant piping work
Check model name to make
sure the fitting is made correctly
Installation of indoor unit
Take account of gradient
of drain piping
Sleeve and insert work
Make connection clearly between outdoor, indoor, remote controller and option.
Preparation of contract drawings
Indicate clearly who will be responsible for switch setting.
Determination of division work
The vacuum pump used must have a capacity of reaching at least 5 torr, more than 1 hour
Vacuum drying
Recharge correctly as calculated in this manual. and record the amount of added refrigerant
Additional charge of refrigerant
Make sure there are no gaps left between the facing materials used on the ceiling
Fit facing panels
Run each indoor unit in turn to make sure the pipe work has been fitted correctly
Test run adjustment
Explain the use of the system as clearly as possible to your customer and make sure all relevant
documentation is in order
Transfer to customer with explanation
Preheat the crank case with the electrical heater for more than 6 hours.
• 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 wall thickness of the piping should comply with the relevant local and national regulations for the designed pressure
3.8MPa.
• 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.)
Installation Manual 7
Outdoor units Information
Outdoor units Information
n Heat pump
n Combination Ration(50~200%)
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.
1) If the operation of indoor unit is more than 130%, the airflow is operated as low in the all
indoor units.
2) The number of () means the number of Max. connectable indoor units, when the connected
capacity of indoor units is in the table above.
Outdoor Number Connection Capacity
Single outdoor units 200%
Double outdoor units 160%
Triple outdoor units 130%
Power Supply: Outdoor Unit (3Ø, 380 - 415V, 50Hz/3Ø, 380V, 60Hz)
8 Outdoor Unit
Unit
System(HP)
Model
Product Charge kg
Max. Connectable No. of Indoor Units
Net Weight kg
lbs
Dimensions (WxHxD) mm
inch
Connecting Pipes Liquid Pipes[mm(inch)]
Gas Pipes[mm(inch)]
1 Outdoor unit
8 10 12
ARUN80LN3 ARUN100LN3 ARUN120LN3
ARUN80LN3 ARUN100LN3 ARUN120LN3
5.0 6.4 6.4
13(20) 16(25) 20(30)
190 x 1 240 x 1 240 x 1
418 x 1 529 x 1 529 x 1
(920 x 1,680 x 760) x 1 (920 x 1,680 x 760) x 1 (920 x 1,680 x 760) x 1
(36.2 x 66.1 x 29.9) x 1 (36.2 x 66.1 x 29.9) x 1 (36.2 x 66.1 x 29.9) x 1
9.52(3/8) 9.52(3/8) 12.7(1/2)
19.05(3/4) 22.2(7/8) 28.58(1 1/8)
Unit
System(HP)
Model
Product Charge kg
Max. Connectable No. of Indoor Units
Net Weight kg
lbs
Dimensions (WxHxD) mm
inch
Connecting Pipes Liquid Pipes[mm(inch)]
Gas Pipes[mm(inch)]
1 Outdoor Unit
14 16 18 20
ARUN140LN3 ARUN160LN3 ARUN180LN3 ARUN200LN3
ARUN140LN3 ARUN160LN3 ARUN180LN3 ARUN200LN3
7.0 7.0 7.5 9.0
23(35) 26(40) 29(45) 32(44)
260 x 1 260 x 1 315 x 1 325 x 1
573 x 1 573 x 1 694 x 1 716 x 1
(1,240 x 1,680 x 760) x 1 (1,240 x 1,680 x 760) x 1 (1,240 x 1,680 x 760) x 1 (1,240 x 1,680 x 760) x 1
(48.8 x 66.1 x 29.9) x 1 (48.8 x 66.1 x 29.9) x 1 (48.8 x 66.1 x 29.9) x 1 (36.2 x 66.1 x 29.9) x 1
12.7(1/2) 12.7(1/2) 15.88(5/8) 15.88(5/8)
28.58(1 1/8) 28.58(1 1/8) 28.58(1 1/8) 28.58(1 1/8)
Outdoor Units Information
Installation Manual 9
Unit
System(HP)
Model
Product Charge kg
Max. Connectable No. of Indoor Units
Net Weight kg
lbs
Dimensions (WxHxD)
mm
inch
Connecting Pipes Liquid Pipes[mm(inch)]
Gas Pipes[mm(inch)]
2 Outdoor Unit
22 24 26 28
ARUN220LN3 ARUN240LN3 ARUN260LN3 ARUN280LN3
ARUN120LN3 ARUN120LN3 ARUN140LN3 ARUN160LN3
ARUN100LN3 ARUN120LN3 ARUN120LN3 ARUN120LN3
12.8 12.8 13.4 13.4
35(44) 39(48) 42(52) 45(56)
240 x 2 240 x 2 240 × 1 + 260 × 1 240 × 1 + 260 × 1
529 x 2 529 x 2 529 × 1 + 573 × 1 529 × 1 + 573 × 1
(920 x 1,680 x 760) x 2 (920 x 1,680 x 760) x 2
(920 x 1,680 x 760) x 1 (920 × 1,680 × 760) × 1)
(1,240 x 1,680 x 760) x 1 (1,240 × 1,680 × 760) × 1
(36.2 x 66.1 x 29.9) x 2 (36.2 x 66.1 x 29.9) x 2
(36.2 x 66.1 x 29.9) x 1 (36.2 × 66.1 × 29.9) × 1
(48.8 x 66.1 x 29.9) x 1 (48.8 × 66.1 × 29.9) × 1
15.88(5/8) 15.88(5/8) 19.05(3/4) 19.05(3/4)
28.58(1 1/8) 34.9(1 3/8) 34.9(1 3/8) 34.9(1 3/8)
Unit
System(HP)
Model
Product Charge kg
Max. Connectable No. of Indoor Units
Net Weight kg
lbs
Dimensions (WxHxD) mm
inch
Connecting Pipes Liquid Pipes[mm(inch)]
Gas Pipes[mm(inch)]
2 Outdoor Unit
30 32 34 36
ARUN300LN3 ARUN320LN3 ARUN340LN3 ARUN360LN3
ARUN160LN3 ARUN160LN3 ARUN180LN3 ARUN200LN3
ARUN140LN3 ARUN160LN3 ARUN160LN3 ARUN160LN3
14.0 14.0 14.5 16.0
49(60) 52(64) 55(64) 58(64)
260 × 2 260 × 2 260 × 1 + 315 × 1 260 × 1 + 325 × 1
573 × 2 573 × 2 573 × 1 + 694 × 1 573 × 1 + 716 × 1
(1,240 x 1,680 x 760) x 2 (1,240 x 1,680 x 760) x 2 (1,240 x 1,680 x 760) x 2 (1,240 x 1,680 x 760) x 2
(48.8 x 66.1 x 29.9) x 2 (48.8 x 66.1 x 29.9) x 2 (48.8 x 66.1 x 29.9) x 2 (48.8 x 66.1 x 29.9) x 2
19.05(3/4) 19.05(3/4) 19.05(3/4) 19.05(3/4)
34.9(1 3/8) 34.9(1 3/8) 34.9(1 3/8) 41.3(1 5/8)
Unit
System(HP)
Model
Product Charge kg
Max. Connectable No. of Indoor Units
Net Weight kg
lbs
Dimensions (WxHxD)
mm
inch
Connecting Pipes Liquid Pipes[mm(inch)]
Gas Pipes[mm(inch)]
2 Outdoor Unit 3 Outdoor Unit
38 40 42 44
ARUN380LN3 ARUN400LN3 ARUN420LN3 ARUN440LN3
ARUN200LN3 ARUN200LN3 ARUN160LN3 ARUN160LN3
ARUN180LN3 ARUN200LN3 ARUN140LN3 ARUN160LN3
ARUN120LN3 ARUN120LN3
16.5 18.0 20.4 20.4
61(64) 64 64 64
315 × 1 + 325 × 1 325 × 2 240 × 1 + 260 × 2 240 × 1 + 260 × 2
694 × 1 + 716 × 1 716 × 2 529 × 1 + 573 × 2 529 × 1 + 573 × 2
(1,240 x 1,680 x 760) x 2 (1,240 x 1,680 x 760) x 2
(920 × 1,680 × 760) × 1 (920 × 1,680 × 760) × 1
(1,240 × 1,680 × 760) × 2 (1,240 × 1,680 × 760) × 2
(48.8 x 66.1 x 29.9) x 2 (48.8 x 66.1 x 29.9) x 2
(36.2 × 66.1 × 29.9) × 1 (36.2 × 66.1 × 29.9) × 1
(48.8 × 66.1 × 29.9) × 2 (48.8 × 66.1 × 29.9) × 2
19.05(3/4) 19.05(3/4) 19.05(3/4) 19.05(3/4)
41.3(1 5/8) 41.3(1 5/8) 41.3(1 5/8) 41.3(1 5/8)
Unit
System(HP)
Model
Product Charge kg
Max. Connectable No. of Indoor Units
Net Weight kg
lbs
Dimensions (WxHxD) mm
inch
Connecting Pipes Liquid Pipes[mm(inch)]
Gas Pipes[mm(inch)]
3 Outdoor Unit
46 48 50 52
ARUN460LN3 ARUN480LN3 ARUN500LN3 ARUN520LN3
ARUN160LN3 ARUN160LN3 ARUN180LN3 ARUN200LN3
ARUN160LN3 ARUN160LN3 ARUN160LN3 ARUN160LN3
ARUN140LN3 ARUN160LN3 ARUN160LN3 ARUN160LN3
21.0 21.0 21.5 23.0
64 64 64 64
260 × 3 260 × 3 260 × 2 + 315 × 1 260 × 2 + 325 × 1
573 × 3 573 × 3 573 × 2 + 694 × 1 573 × 2 + 716 × 1
(1,240 x 1,680 x 760) x 3 (1,240 x 1,680 x 760) x 3 (1,240 x 1,680 x 760) x 3 (1,240 x 1,680 x 760) x 3
(48.8 x 66.1 x 29.9) x 3 (48.8 x 66.1 x 29.9) x 3 (48.8 x 66.1 x 29.9) x 3 (48.8 x 66.1 x 29.9) x 3
19.05(3/4) 19.05(3/4) 19.05(3/4) 19.05(3/4)
41.3(1 5/8) 41.3(1 5/8) 41.3(1 5/8) 41.3(1 5/8)
Outdoor Units Information
10 Outdoor Unit
Unit
System(HP)
Model
Product Charge kg
Max. Connectable No. of Indoor Units
Net Weight kg
lbs
Dimensions (WxHxD) mm
inch
Connecting Pipes Liquid Pipes[mm(inch)]
Gas Pipes[mm(inch)]
3 Outdoor Unit
54 56 58 60
ARUN540LN3 ARUN560LN3 ARUN580LN3 ARUN600LN3
ARUN200LN3 ARUN200LN3 ARUN200LN3 ARUN200LN3
ARUN200LN3 ARUN200LN3 ARUN200LN3 ARUN200LN3
ARUN140LN3 ARUN160LN3 ARUN180LN3 ARUN200LN3
25.0 25.0 25.5 27.0
64 64 64 64
260 × 1 + 325 × 2 260 × 1 + 325 × 2 315 × 1 + 325 × 2 325× 3
573 × 1 + 716 × 2 573 × 1 + 716 × 2 694 × 1 + 716 × 2 716× 3
(1,240 x 1,680 x 760) x 3 (1,240 x 1,680 x 760) x 3 (1,240 x 1,680 x 760) x 3 (1,240 x 1,680 x 760) x 3
(48.8 x 66.1 x 29.9) x 3 (48.8 x 66.1 x 29.9) x 3 (48.8 x 66.1 x 29.9) x 3 (48.8 x 66.1 x 29.9) x 3
19.05(3/4) 19.05(3/4) 19.05(3/4) 19.05(3/4)
41.3(1 5/8) 41.3(1 5/8) 41.3(1 5/8) 41.3(1 5/8)
Unit
System(HP)
Model
Product Charge kg
Max. Connectable No. of Indoor Units
Net Weight kg
lbs
Dimensions (WxHxD) mm
inch
Connecting Pipes Liquid Pipes[mm(inch)]
Gas Pipes[mm(inch)]
4 Outdoor Unit
62 64 66 68
ARUN620LN3 ARUN640LN3 ARUN660LN3 ARUN680LN3
ARUN160LN3 ARUN160LN3 ARUN180LN3 ARUN180LN3
ARUN160LN3 ARUN160LN3 ARUN160LN3 ARUN180LN3
ARUN160LN3 ARUN160LN3 ARUN160LN3 ARUN160LN3
ARUN140LN3 ARUN160LN3 ARUN160LN3 ARUN160LN3
28.0 28.0 28.5 29.0
64 64 64 64
260 × 4 260 × 4 260 × 3 + 315 × 1 260×2 + 315×2
573 × 4 573 × 4 573 × 3 + 694 × 1 573×2 + 694×2
(1,240 x 1,680 x 760) x 4 (1,240 x 1,680 x 760) x 4 (1,240 x 1,680 x 760) x 4 (1,240 x 1,680 x 760) x 4
(48.8 x 66.1 x 29.9) x 4 (48.8 x 66.1 x 29.9) x 4 (48.8 x 66.1 x 29.9) x 4 (48.8 x 66.1 x 29.9) x 4
22.2(7/8) 22.2(7/8) 22.2(7/8) 22.2(7/8)
44.5(1 3/4) 44.5(1 3/4) 53.98(2) 53.98(2)
Unit
System(HP)
Model
Product Charge kg
Max. Connectable No. of Indoor Units
Net Weight kg
lbs
Dimensions (WxHxD) mm
inch
Connecting Pipes Liquid Pipes[mm(inch)]
Gas Pipes[mm(inch)]
4 Outdoor Unit
70 72 74 76
ARUN700LN3 ARUN720LN3 ARUN740LN3 ARUN760LN3
ARUN200LN3 ARUN200LN3 ARUN200LN3 ARUN200LN3
ARUN180LN3 ARUN200LN3 ARUN200LN3 ARUN200LN3
ARUN160LN3 ARUN160LN3 ARUN180LN3 ARUN200LN3
ARUN160LN3 ARUN160LN3 ARUN160LN3 ARUN160LN3
30.5 32.0 32.5 34.0
64 64 64 64
260 × 2 + 315 × 1 + 325 × 1 260 × 2 + 325 × 2 260×1 + 315×1 + 325×2 260 × 1 + 325 × 3
573 × 2 + 694 × 1 + 716 × 1 573 × 2 + 716 × 2 573×1 + 694×1 + 716×2 573 × 1 + 716 × 3
(1,240 x 1,680 x 760) x 4 (1,240 x 1,680 x 760) x 4 (1,240 x 1,680 x 760) x 4 (1,240 x 1,680 x 760) x 4
(48.8 x 66.1 x 29.9) x 4 (48.8 x 66.1 x 29.9) x 4 (48.8 x 66.1 x 29.9) x 4 (48.8 x 66.1 x 29.9) x 4
22.2(7/8) 22.2(7/8) 22.2(7/8) 22.2(7/8)
53.98(2) 53.98(2) 53.98(2) 53.98(2)
Unit
System(HP)
Model
Product Charge kg
Max. Connectable No. of Indoor Units
Net Weight kg
lbs
Dimensions (WxHxD) mm
inch
Connecting Pipes Liquid Pipes[mm(inch)]
Gas Pipes[mm(inch)]
4 Outdoor Unit
78 80
ARUN780LN3 ARUN800LN3
ARUN200LN3 ARUN200LN3
ARUN200LN3 ARUN200LN3
ARUN200LN3 ARUN200LN3
ARUN180LN3 ARUN200LN3
34.5 36.0
64 64
315 × 1 + 325 × 3 325 × 4
694 × 1 + 716 × 3 716 × 4
(1,240 x 1,680 x 760) x 4 (1,240 x 1,680 x 760) x 4
(48.8 x 66.1 x 29.9) x 4 (48.8 x 66.1 x 29.9) x 4
22.2(7/8) 22.2(7/8)
53.98(2) 53.98(2)
Outdoor Units Information
Installation Manual 11
n Cooling Only
Unit
System(HP)
Model
Product Charge kg
Max. Connectable No. of Indoor Units
Net Weight kg
lbs
Dimensions (WxHxD) mm
inch
Connecting Pipes Liquid Pipes[mm(inch)]
Gas Pipes[mm(inch)]
2 Outdoor Unit
22 24 26 28
ARUV220LT3 ARUV240LT3 ARUV260LT3 ARUV280LT3
ARUV120LT3 ARUV140LT3 ARUV140LT3 ARUV140LT3
ARUV100LT3 ARUV100LT3 ARUV120LT3 ARUV140LT3
12.8 12.8 12.8 12.8
35(44) 39(48) 42(52) 45(56)
185 x 1 + 235 x 1 185 x 1 + 235 x 1 235 x 2 235 x 2
408 x 1 + 518 x 1 408 x 1 + 518 x 1 518 x 2 518 x 2
(920 x 1,680 x 760) x 2 (920 x 1,680 x 760) x 2 (920 x 1,680 x 760) x 2 (920 x 1,680 x 760) x 2
(36.2 x 66.1 x 29.9) x 2 (36.2 x 66.1 x 29.9) x 2 (36.2 x 66.1 x 29.9) x 2 (36.2 x 66.1 x 29.9) x 2
15.88(5/8) 15.88(5/8) 19.05(3/4) 19.05(3/4)
28.58(1 1/8) 34.9(1 3/8) 34.9(1 3/8) 34.9(1 3/8)
Unit
System(HP)
Model
Product Charge kg
Max. Connectable No. of Indoor Units
Net Weight kg
lbs
Dimensions (WxHxD) mm
inch
Connecting Pipes Liquid Pipes[mm(inch)]
Gas Pipes[mm(inch)]
1 Outdoor unit
6 8 10 12
ARUV60LT3 ARUV80LT3 ARUV100LT3 ARUV120LT3
ARUV60LT3 ARUV80LT3 ARUV100LT3 ARUV120LT3
4.0
4.0 6.4 6.4
10(12) 13(20) 16(25) 20(30)
155 x 1 155 x 1 185 x 1 235 x 1
341 x 1 341 x 1 408 x 1 518 x 1
(620 x 1,680 x 760) x 1 (620 x 1,680 x 760) x 1 (920 x 1,680 x 760) x 1 (920 x 1,680 x 760) x 1
(24.4 x 66.1 x 29.9) x 1 (24.4 x 66.1 x 29.9) x 1 (36.2 x 66.1 x 29.9) x 1 (36.2 x 66.1 x 29.9) x 1
9.52(3/8) 9.52(3/8) 9.52(3/8) 12.7(1/2)
19.05(3/4) 19.05(3/4) 22.2(7/8) 28.58(1 1/8)
Unit
System(HP)
Model
Product Charge kg
Max. Connectable No. of Indoor Units
Net Weight kg
lbs
Dimensions (WxHxD) mm
inch
Connecting Pipes Liquid Pipes[mm(inch)]
Gas Pipes[mm(inch)]
1 Outdoor Unit
14 16 18 20
ARUV140LT3 ARUV160LT3 ARUV180LT3 ARUV200LT3
ARUV140LT3 ARUV160LT3 ARUV180LT3 ARUV200LT3
6.4 7.0 7.5 9.0
23(35) 26(40) 29(45) 32(44)
235 x 1 255 × 1 310 × 1 310 × 1
518 x 1 562 × 1 683 × 1 683 × 1
(920 x 1,680 x 760) x 1 (1,240 x 1,680 x 760) x 1 (1,240 x 1,680 x 760) x 1 (1,240 x 1,680 x 760) x 1
(36.2 x 66.1 x 29.9) x 1 (48.8 x 66.1 x 29.9) x 1 (48.8 x 66.1 x 29.9) x 1 (48.8 x 66.1 x 29.9) x 1
12.7(1/2) 12.7(1/2) 15.88(5/8) 15.88(5/8)
28.58(1 1/8) 28.58(1 1/8) 28.58(1 1/8) 28.58(1 1/8)
Unit
System(HP)
Model
Product Charge kg
Max. Connectable No. of Indoor Units
Net Weight kg
lbs
Dimensions (WxHxD) mm
inch
Connecting Pipes Liquid Pipes[mm(inch)]
Gas Pipes[mm(inch)]
2 Outdoor Unit
30 32 34 36
ARUV300LT3 ARUV320LT3 ARUV340LT3 ARUV360LT3
ARUV160LT3 ARUV180LT3 ARUV200LT3 ARUV200LT3
ARUV140LT3 ARUV140LT3 ARUV140LT3 ARUV160LT3
13.4 13.9 15.4 16.0
49(60) 52(64) 55(64) 58(64)
235 × 1 + 255 × 1 235 × 1 + 310 × 1 235 × 1 + 310 × 1 255 × 1 + 310 × 1
518 × 1 + 562 × 1 518 × 1 + 683 × 1 518 × 1 + 683 × 1 562 × 1 + 683 × 1
(920 x 1,680 x 760) x 1 (920 x 1,680 x 760) x 1 (920 x 1,680 x 760) x 1
(1,240 x 1,680 x 760) x 2
(1,240 x 1,680 x 760) x 1 (1,240 x 1,680 x 760) x 1 (1,240 x 1,680 x 760) x 1
(36.2 x 66.1 x 29.9) x 1 (36.2 x 66.1 x 29.9) x 1 (36.2 x 66.1 x 29.9) x 1
(48.8 x 66.1 x 29.9) x 2
(48.8 x 66.1 x 29.9) x 1 (48.8 x 66.1 x 29.9) x 1 (48.8 x 66.1 x 29.9) x 1
19.05(3/4) 19.05(3/4) 19.05(3/4) 19.05(3/4)
34.9(1 3/8) 34.9(1 3/8) 34.9(1 3/8) 41.3(1 5/8)
Outdoor Units Information
12 Outdoor Unit
Unit
System(HP)
Model
Product Charge kg
Max. Connectable No. of Indoor Units
Net Weight kg
lbs
Dimensions (WxHxD) mm
inch
Connecting Pipes Liquid Pipes[mm(inch)]
Gas Pipes[mm(inch)]
2 Outdoor Unit 3 Outdoor Unit
38 40 42 44
ARUV380LT3 ARUV400LT3 ARUV420LT3 ARUV440LT3
ARUV200LT3 ARUV200LT3 ARUV140LT3 ARUV160LT3
ARUV180LT3 ARUV200LT3 ARUV140LT3 ARUV140LT3
ARUV140LT3 ARUV140LT3
16.5 18.0 19.2 19.8
61(64) 64 64 64
310 × 2 310 × 2 235 × 3 235 × 2 + 255 × 1
683 × 2 683 × 2 518 × 3 518 × 2 + 562 × 1
(1,240 × 1,680 × 760) × 2 (1,240 × 1,680 × 760) × 2 (1,240 × 1,680 × 760) × 3
(920 × 1,680 × 760) × 2
(1,240 × 1,680 × 760) × 1
(48.8 × 66.1 × 29.9) × 2 (48.8 × 66.1 × 29.9) × 2 (48.8 × 66.1 × 29.9) × 3
(36.2 × 66.1 × 29.9) × 2
(48.8 × 66.1 × 29.9) × 1
19.05(3/4) 19.05(3/4) 19.05(3/4) 19.05(3/4)
41.3(1 5/8) 41.3(1 5/8) 41.3(1 5/8) 41.3(1 5/8)
Unit
System(HP)
Model
Product Charge kg
Max. Connectable No. of Indoor Units
Net Weight kg
lbs
Dimensions (WxHxD) mm
inch
Connecting Pipes Liquid Pipes[mm(inch)]
Gas Pipes[mm(inch)]
3 Outdoor Unit
46 48 50 52
ARUV460LT3 ARUV480LT3 ARUV500LT3 ARUV520LT3
ARUV180LT3 ARUV200LT3 ARUV200LT3 ARUV200LT3
ARUV140LT3 ARUV140LT3 ARUV160LT3 ARUV180LT3
ARUV140LT3 ARUV140LT3 ARUV140LT3 ARUV140LT3
20.3 21.8 22.4 22.9
64 64 64 64
235 × 2 + 310 × 1 235 × 2 + 310 × 1 235 × 1 + 255 × 1 + 310 × 1 235 × 1 + 310 × 2
518 × 2 + 683 × 1 518 × 2 + 683 × 1 518 × 1 + 562 × 1 + 683 × 1 518 × 1 + 683 × 2
(920 x 1,680 x 760) x 2 (920 x 1,680 x 760) x 2 (920 x 1,680 x 760) x 1 (920 x 1,680 x 760) x 1
(1,240 x 1,680 x 760) x 1 (1,240 x 1,680 x 760) x 1 (1,240 x 1,680 x 760) x 2 (1,240 x 1,680 x 760) x 2
(36.2 x 66.1 x 29.9) x 2 (36.2 x 66.1 x 29.9) x 2 (36.2 x 66.1 x 29.9) x 1 (36.2 x 66.1 x 29.9) x 1
(48.8 x 66.1 x 29.9) x 1 (48.8 x 66.1 x 29.9) x 1 (48.8 x 66.1 x 29.9) x 2 (48.8 x 66.1 x 29.9) x 2
19.05(3/4) 19.05(3/4) 19.05(3/4) 19.05(3/4)
41.3(1 5/8) 41.3(1 5/8) 41.3(1 5/8) 41.3(1 5/8)
Unit
System(HP)
Model
Product Charge kg
Max. Connectable No. of Indoor Units
Net Weight kg
lbs
Dimensions (WxHxD) mm
inch
Connecting Pipes Liquid Pipes[mm(inch)]
Gas Pipes[mm(inch)]
3 Outdoor Unit
54 56 58 60
ARUV540LT3 ARUV560LT3 ARUV580LT3 ARUV600LT3
ARUV200LT3 ARUV200LT3 ARUV200LT3 ARUV200LT3
ARUV200LT3 ARUV200LT3 ARUV200LT3 ARUV200LT3
ARUV140LT3 ARUV160LT3 ARUV180LT3 ARUV200LT3
24.4 25.0 25.5 27.0
64 64 64 64
235 × 1 + 310 × 2 255 × 1 + 310 × 2 310 × 3 310 × 3
518 × 1 + 683 × 2 562 × 1 + 683 × 2 683 × 3 683 × 3
(920 x 1,680 x 760) x 1
(1,240 x 1,680 x 760) x 3 (1,240 x 1,680 x 760) x 3 (1,240 x 1,680 x 760) x 3
(1,240 x 1,680 x 760) x 2
(36.2 x 66.1 x 29.9) x 1
(48.8 x 66.1 x 29.9) x 3 (48.8 x 66.1 x 29.9) x 3 (48.8 x 66.1 x 29.9)
x 3
(48.8 x 66.1 x 29.9) x 2
19.05(3/4) 19.05(3/4) 19.05(3/4) 19.05(3/4)
41.3(1 5/8) 41.3(1 5/8) 41.3(1 5/8) 41.3(1 5/8)
Outdoor Units Information
Installation Manual 13
Unit
System(HP)
Model
Product Charge kg
Max. Connectable No. of Indoor Units
Net Weight kg
lbs
Dimensions (WxHxD) mm
inch
Connecting Pipes Liquid Pipes[mm(inch)]
Gas Pipes[mm(inch)]
4 Outdoor Unit
62 64 66 68
ARUV620LT3 ARUV640LT3 ARUV660LT3 ARUV680LT3
ARUV200LT3 ARUV200LT3 ARUV200LT3 ARUV200LT3
ARUV140LT3 ARUV160LT3 ARUV180LT3 ARUV200LT3
ARUV140LT3 ARUV140LT3 ARUV140LT3 ARUV140LT3
ARUV140LT3 ARUV140LT3 ARUV140LT3 ARUV140LT3
28.2 28.8 29.3 30.8
64 64 64 64
235 × 3 + 310 × 1
235 × 2 + 255 × 1 + 310 × 1
235 × 2 + 310 × 2 235 × 2 + 310 × 2
518 × 3 + 683 × 1
518 × 2 + 562 × 1 + 683 × 1
518 × 2 + 683 × 2 518 × 2 + 683 × 2
(920 x 1,680 x 760) x 3 (920 x 1,680 x 760) x 2 (920 x 1,680 x 760) x 2 (920 x 1,680 x 760) x 2
(1,240 x 1,680 x 760) x 1 (1,240 x 1,680 x 760) x 2 (1,240 x 1,680 x 760) x 2 (1,240 x 1,680 x 760) x 2
(36.2 x 66.1 x 29.9) x 3 (36.2 x 66.1 x 29.9) x 2 (36.2 x 66.1 x 29.9) x 2 (36.2 x 66.1 x 29.9) x 2
(48.8 x 66.1 x 29.9) x 1 (48.8 x 66.1 x 29.9) x 2 (48.8 x 66.1 x 29.9) x 2 (48.8 x 66.1 x 29.9) x 2
22.2(7/8) 22.2(7/8) 22.2(7/8) 22.2(7/8)
44.5(1 3/4) 44.5(1 3/4) 53.98(2) 53.98(2)
Unit
System(HP)
Model
Product Charge kg
Max. Connectable No. of Indoor Units
Net Weight kg
lbs
Dimensions (WxHxD) mm
inch
Connecting Pipes Liquid Pipes[mm(inch)]
Gas Pipes[mm(inch)]
4 Outdoor Unit
70 72 74 76
ARUV700LT3 ARUV720LT3 ARUV740LT3 ARUV760LT3
ARUV200LT3 ARUV200LT3 ARUV200LT3 ARUV200LT3
ARUV200LT3 ARUV200LT3 ARUV200LT3 ARUV200LT3
ARUV160LT3 ARUV180LT3 ARUV200LT3 ARUV200LT3
ARUV140LT3 ARUV140LT3 ARUV140LT3 ARUV160LT3
31.4 31.9 33.4 34.0
64 64 64 64
235 × 1 + 255 × 1 + 310 × 2
235 × 1 + 310 × 3 235 × 1 + 310 × 3 255 × 1 + 310 × 3
518 × 1 + 562 × 1 + 683 × 2
518 × 1 + 683 × 3 518 × 1 + 683 × 3 562 × 1 + 683 × 3
(920 x 1,680 x 760) x 1 (920 x 1,680 x 760) x 1 (920 x 1,680 x 760) x 1
(1,240 x 1,680 x 760) x 4
(1,240 x 1,680 x 760) x 3 (1,240 x 1,680 x 760) x 3 (1,240 x 1,680 x 760) x 3
(36.2 x 66.1 x 29.9) x 1 (36.2 x 66.1 x 29.9) x 1 (36.2 x 66.1 x 29.9) x 1
(48.8 x 66.1 x 29.9) x 4
(48.8 x 66.1 x 29.9) x 3 (48.8 x 66.1 x 29.9) x 3 (48.8 x 66.1 x 29.9) x 3
22.2(7/8) 22.2(7/8) 22.2(7/8) 22.2(7/8)
53.98(2) 53.98(2) 53.98(2) 53.98(2)
Unit
System(HP)
Model
Product Charge kg
Max. Connectable No. of Indoor Units
Net Weight kg
lbs
Dimensions (WxHxD) mm
inch
Connecting Pipes Liquid Pipes[mm(inch)]
Gas Pipes[mm(inch)]
4 Outdoor Unit
78 80
ARUV780LT3 ARUV800LT3
ARUV200LT3 ARUV200LT3
ARUV200LT3 ARUV200LT3
ARUV200LT3 ARUV200LT3
ARUV180LT3 ARUV200LT3
34.5 36.0
64 64
310 × 4 310 × 4
683 × 4 683 × 4
(1,240 x 1,680 x 760) x 4 (1,240 x 1,680 x 760) x 4
(48.8 x 66.1 x 29.9) x 4 (48.8 x 66.1 x 29.9) x 4
22.2(7/8) 22.2(7/8)
53.98(2) 53.98(2)
14 Outdoor Unit
Environment-friendly Alternative Refrigerant R410A
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 by noise from unit
• No exposition to strong wind
• With strength which bears weight of unit
• Note that drain flows out of unit when heating
• With space for air passage and service work shown next
• Because of the possibility of fire, do not install unit to the space where generation, inflow, stagnation, and
leakage of combustible gas is expected.
• Avoid unit installation in a place where acidic solution and spray (sulfur) are often used.
• Do not use unit under any special environment where oil, steam and sulfuric gas exist.
• 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.
• Select installation location considering following conditions to avoid bad condition when additionally
performing defrost operation.
1. 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.)
• 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 be also 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. These days the developed countries have approved it as the environment-friendly refrigerant and
encouraged to use it widely to prevent environment pollution.
Environment-friendly Alternative Refrigerant R410A
CAUTION:
• The wall thickness of the piping should comply with the relevant local and national regulations for the designed
pressure 3.8MPa
• 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.
Installation Manual 15
Installation Space
Installation Space
Individual Installation
n During the installation of the unit, consider service, inlet, and outlet and acquire the minimum space
as shown in the figures below.
) -
*
,
)
+
*
,
-
+
) -
*
.
+
,
) -
*
.
+
,
)
-
*
)
*
-
P
P
)
*
Category
Case 1
(10mm≤Side Space≤49mm)
Case 2
(Side Space
≥
49mm)
Installation Space
4 sides are
walls
Only 2 sides
are walls
Limitations on
the height of
the wall
(Refer to 4
side walls)
Front
Front
Front
Front
Front
Front
Front
Front
Front
No limit to the height of the wall
No limit to the
height of the wall
Front
• The height of the wall on the front side must be 1500mm or less.
• The height of the wall on the inlet side must be 500mm 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 inlet side by 1/2 of h1.
- Additional Space on the front side by 1/2 of h2
- h
2
= A(Actual height) - 1500
- h
1
= B(Actual height) - 500
A≥10 A≥50
B≥300 B≥100
C≥10 C≥50
D≥500 D≥500
A≥10 A≥50
B≥300 B≥100
C≥10 C≥50
D≥500 D≥500
E≥20 E≥100
A≥10 A≥50
B≥300 B≥100
C≥10 C≥50
D≥500 D≥500
E≥20 E≥100
F≥600 E≥500
A≥10 A≥50
B≥300 B≥100
C≥10 C≥50
D≥300 D≥100
E≥20 E≥100
F
≥500 E≥500
A≥10
B≥300
A≥200
B≥300
E≥400
16 Outdoor Unit
Installation Space
Seasonal wind and cautions in winter
• Sufficient measures are required in a snow area or severe cold area 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 not to 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 50cm 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 10cm, always remove snow for
operation.
1. 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)
2. Don't install the suction hole and discharge hole of the Outdoor Unit facing the seasonal wind.
Installation Manual 17
Lifting Method
• 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.
Lifting method
CAUTION
Be very careful while carrying the product.
• Do not have only one person carry product if it is more than 20 kg.
• 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 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.
Weight per Capacity
Locking points for
transportation ropes
Forklift Carrying Guide
Forklift Carrying Hole
Chassis
Capacity(HP) Weight(kg)
Heat Pump Cooling Only Heat Pump Cooling Only
UX1
- 6 - 155
- 8 - 155
UX2
8 - 190 -
10 10 240 185
12 12 240 235
- 14 - 235
UX3
14 - 260 -
16 16 260 255
18 18 315 310
20 20 325 310
18 Outdoor Unit
Installation
Installation
The location of the Anchor bolts
• Install at places where it can endure the weight and vibration/noise of the outdoor unit.
• The outdoor unit supports at the bottom shall have width of at least 100mm under the unit°Øs legs before being fixed.
• The outdoor unit supports should have minimum height of 200mm.
• Anchor bolts must be inserted at least 75mm.
At least 100mm
At least 100mm
At least 100mm
At least 100mm
At least 100mm
At least 100mm
Needed for outdoor units of 23kW or above
Center of the Unit
For outdoor units of 23kW or
above should not be supported
only by the corner supports.
Outdoor units of 14.5, 16kW
can be supported only by the
corner supports.
Needed for outdoor units of 23kW or above
Center of the Unit
730
760
6565
Unit : mm
At least 65At least 65
Chassis
Outdoor Unit Capacity
A(mm) B(mm)
H/P C/O
UX1 6~8HP 620 497
UX2 8~12HP 10~14HP 920 792
UX3 14~20HP 16~20HP 1240 1102
Installation Manual 19
Installation
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 200mm).
WARNING
• 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 pan. Use drainage instead for water outlet.
The tube or pipe may freeze and the water may not be drained.
WARNING
• Be sure to remove the Pallet(Wood Support) of the bottom
side of the outdoor unit Base Pan 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.
At least 200mm
Unit : mm
200
75
75
200
100
- 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
Pallet(Wood Support)
- Remove before Installation
20 Outdoor Unit
Installation
Preparation of Piping
1) Cut the pipes and the cable.
n Use the accessory piping kit or the pipes purchased
locally.
n Measure the distance between the indoor and the
outdoor unit.
n Cut the pipes a little longer than measured distance.
n Cut the cable 1.5m longer than the pipe length.
2) Burrs removal
n Completely remove all burrs from the cut cross section
of pipe/tube.
n 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.
3) Flaring work
n Carry out flaring work using flaring tool as shown
below.
Firmly hold copper tube in a bar(or die) as indicated
dimension in the table above.
4) Check
n Compare the flared work with figure below.
n If flare is noted to be defective, cut off the flared section
and do flaring work again.
Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure.
Pipe
" A "
Gas Liquid Gas
Liquid
<5.6(19,100) 1/2" 1/4" 0.5~0.8 0~0.5
<16.0(54,600) 5/8" 3/8" 0.8~1.0 0.5~0.8
<22.4(76,400) 3/4" 3/8" 1.0~1.3 0.5~0.8
Indoor unit
[kW(Btu/h]
Copper
tube
90°
Slanted Uneven Rough
Pipe
Reamer
Point down
Bar
Copper pipe
Clamp handle
Red arrow mark
Cone
Yoke
Handle
Bar
"A"
Inclined
Inside is shining without scratches.
Smooth all round
Even length
all round
Surface
damaged
Cracked Uneven
thickness
= Improper flaring =
Installation Manual 21
Installation
1. Remove the cap and turn the valve counter clockwise with the hexagon wrench.
2. Turn it until the shaft stops.
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.
3. Make sure to tighten the cap securely.
1. Remove the cap and turn the valve clockwise with the hexagon wrench.
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.
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.
Tightening torque
Union
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.
• 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.
Opening shutoff valve
Closing shutoff valve
FLARE SHAPE and FLARE NUT TIGHTENING TORQUE
Shutoff
valve size
Ø6.4
Ø9.5
Ø12.7
Ø15.9
Ø22.2
Ø25.4
13.5-16.5
18-22
14-17
33-39
50-60
62-75
23-27
13.5-16.5
5.4-6.6
Hexagonal
wrench 4mm
Hexagonal
wrench 6mm
Hexagonal
wrench 10mm
8.1-9.9
27-33 36-44
-
11.5-13.9
22-28-
Tightening torque N-m(Turn clockwise to close)
Shaft(valve body)
Gas line piping attached to unit
Cap(Valve lid) Service port Flare nut
90°
±2
45
°
±
2
A
R=0.4~0.8
pipe size tightening torque(Ncm) A(mm) flare shape
Ø9.5 3270-3990 12.8-13.2
Ø12.7 4950-6030 16.2-16.6
Ø15.9 6180-7540 19.3-19.7
22 Outdoor Unit
Installation
1. Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over
120°C).
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), 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
the heat-resistance temperature.
• Add the insulation over 10mm thickness at high humidity environment.
Indoor unit
Thermal insulator
(accessory)
Fastening band
(accessory)
Refrigerant piping
HEAT INSULATION
Installation Manual 23
Precautions on Pipe connection / Valve operation
Refrigerant piping installation
Refrigerant piping installation
1. For High Low Pressure Common Pipe, use provided elbows to
connect between the outdoor units using pipes.
2. During the cutting of the pipes, remove burr, foreign substances
before connecting. Otherwise, the unit may not operate because
of the sludge inside the pipe.
3. Apply Nitrogen Gas of pressure until 3.8MPa(38.7kgf/cm
2
) for
work area leakage test.
4. After the degree of a vacuum reaches 5 torr, continue the
vacuuming work for more than 1 hour.
5. Open the side pole with hexagonal wrench.
Installing 2 units
Installing 3 units
Installing 4 units
Gas pipe
Liquid pipe
Common pipe
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 When connecting to high low pressure
common pipe, connect pipes using
connecting elbows.
Detach knock outs according
the usages.
Detach
knock outs
according
the usages.
Installing on the front side Installing on the side(Limited to high
low pressure common pipe)
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.
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 the cables.)
High Low Pressure Common Pipe Connections
24 Outdoor Unit
Refrigerant piping installation
2 outdoor units
Connection of Outdoor units
2 Unit
3 Unit
4 Unit
ARCNN21
ARCNN31
ARCNN41
C
C
C
C
C
A
130
408
416
111
I.D.28.58
I.D.34.9I.D.31.8
I.D.28.58
I.D.28.58
I.D.41.3 I.D.38.1 O.D.34.9
I.D.22.2
125
341
298
111
I.D.41.3
O.D.34.9
I.D.34.9I.D.41.3
I.D.28.58
415
375
I.D.41.3
I.D.28.58
I.D.44.48 I.D.53.98
134
7
0
83
314
331
I.D.22.2 O.D.19.05
I.D.15.88
I.D.19.05
I.D.15.88I.D.12.7
I.D.12.7
I.D.15.88
I.D.9.52
334
281
83
I.D.19.05
I.D.12.7 I.D.15.88
I.D.19.05I.D.22.2
334
281
83
80
I.D.25.4
O.D.22.2
I.D.19.05
I.D.12.7 I.D.15.88
I.D.19.05I.D.22.2
Outdoor units Model Gas pipe Liquid pipe
For more information, refer accessory installation manual.
[Unit : mm]
Y branch
A
B
To outdoor unit
To branch piping or indoor unit
A
B
Facing
upwards
Facing
downwards
Within ± 3° Within ± 3°
Viewed from point A
in direction of arrow
Within +/- 10
Installation Manual 25
Refrigerant piping installation
To Outdoor Unit
Sealed Piping
A
A
B
A
B
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
3.8MPa. We recommend the following table as the minimum wall thickness.
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.
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 .)
9. The Multi V will stop due to an abnormality like excessive or insufficient 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.
Caution
ARBL054 ARBL057 ARBL1010
ARBL104 ARBL107 ARBL2010
Y branch
ARBLN01621, ARBLN03321, ARBLN07121,
ARBLN14521, ARBLN23220
Header
4 branch 7 branch 10 branch
0.99
22.2
1.1
31.8
1.21
34.9
1.35
38.1
1.43 1.55 2.1
41.3
44.45 53.98
0.99
28.58
0.99
25.4
0.99
19.05
0.99
15.88
0.8
12.7
0.8
9.52
0.8
6.35
Minimum
thickness [mm]
Outer diameter
[mm]
26 Outdoor Unit
Refrigerant piping installation
WARNING
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.
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.
Installation Manual 27
Left Side Pipe Draw Out
Front Side Pipe Draw Out
Right Side Pipe Draw Out
• Pipe connections can be done on the front side or on the side according to the installation environments.
• Be sure to let 0.2kgf/cm
2
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.
• Use Knock Outs of Base Pan of the outdoor unit for Left/Right or Bottom pipe drawing outs.
Refrigerant Pipe
Regulator
Nitrogen
Nitrogen
Direction
Taping
Valve
Removal Area for common
pipe bottom side connections.
Removal Area for Liquid/Gas pipe
bottom side connections.
1. Open the front panel.
2. Remove Brackets
3. Fix with only nut and washer as shown in the
figure.
Brackets for Transportation
Washer
Nut
Pipe connections between indoor and outdoor unit
Preparation Work
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.
CAUTION
• Remove the brackets on the inverter condenser legs that were fixed to protect the unit during the transportation.
(If bracket is not removed, abnormal noise or vibration may occur.)
Pipe connections between indoor and outdoor unit
28 Outdoor Unit
n 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:
1. Verify whether the liquid/gas/common pipes are
locked.
2. Extract remaining refrigerant or air inside using the
service port.
3. Remove the leakage prevention cap
n Method of pipe cap work during the
installation of single outdoor unit
1. Remove rubber cap inserted in the common pipe.
2. Wrap the common pipe service valve with wet towel.
3. Insert the pipe cap provided into the common pipe.
4. Place high/low pressure flare nut cap under the pipe cap so
that the pipe cap does not move.
5. Weld the pipe cap.
h If not wrapped with a wet towel, there may be damages
inside the valve.
h If the unit is operated without pipe cap work, there may be
abnormality in the cycle caused by refrigerant leakage.
n 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.
Liquid pipe
Gas pipe
Common pipe
Service Port
Leakage Prevention Cap
Pipe Cap
Flare Nut
Pipe Drawing Out during Single / Series connection
Common pipe Liquid pipe Gas pipe
Pipe Knock Out for
Liquid/Gas pipes
Pipe Knock Out for
common pipes
Pipe connections between indoor and outdoor unit
Installation Manual 29
Common pipe Liquid pipe Gas pipe
Remove only liquid/gas pipe Knock Out Remove Base Pan
Common pipe
Remove Base Pan
Liquid pipe Gas pipe
n Method of drawing out pipes on the bottom side
①
Drawing out common pipe through side panel
n Figure of Sides when drawing out through bottom pipe
②
Drawing out common pipe through bottom pipe
Remove Pipe
Knock Out Hole
i) Single outdoor unit
ii) Series outdoor units
(Draw out common pipes
through bottom)
iii) Series outdoor units
(Draw out common pipes
through side panel)
Pipe connections between indoor and outdoor unit
30 Outdoor Unit
Pipe connections between indoor and outdoor unit
u Y branch method
Refrigerant piping system
1 Outdoor Units
Example : 5 Indoor Units connected
Ⓐ : Outdoor Unit
Ⓑ : 1st branch (Y branch)
Ⓒ : Indoor Units
l
40m (90 m : Conditional application)
H 110m
L150m (200 m : Conditional application)
Master
Master
Slave
Slave
Master
Slave
10m or
less
l
40m (90 m : Conditional application)
H 110m
L150m (200 m : Conditional application)
ODU Capacity
Master Slave
Piping length from outdoor branch to outdoor unit ≤10m, equivalent length:max 13m
(for 22HP or more)
Additional Application
To satisfy below condition to make 40 m ~ 90 m of pipe length after first branch.
1) Diameter of pipes between first branch and the last branch should be increased by one step,
except pipe diameter B,C,D is same as Diameter A
Ø6.35 ’ Ø 9.52 ’ Ø 12.7 ’ Ø 15.88 ’ Ø 19.05 ’ Ø 22.2 ’ Ø 25.4*, Ø 28.58 ’ Ø 31.8*, Ø 34.9 ’ Ø
38.1*
* : It is not necessary to size up.
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) Length of pipe from each indoor unit to the closest branch (a,b,c,d,e) ≤ 40 m
4) [Length of pipe from outdoor unit to the farthest indoor unit 5 (A+B+C+D+e)]
- [Length of pipe outdoor unit to the closest indoor unit 1 (A+a)] ≤ 40 m
2 Outdoor Units
Example : 5 Indoor Units connected
Ⓐ : Outdoor Unit
Ⓑ : 1st branch (Y branch)
Ⓒ : Indoor Units
Ⓓ : Downward Indoor Unit
Ⓔ : Connection branch pipe
between Outdoor units:
ARCNN21
Loading...