LG ARUN100LTE4.EWGBEVH Owner's Manual

LG ARUN100LTE4.EWGBEVH Owner's Manual
ENGLISH
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.
Original instruction
www.lg.com
P/NO : MFL67221431
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.
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 :
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.
• 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.
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
• 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
! 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
! 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.
• 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.
• 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.
3
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.
TABLE OF CONTENTS
2 TIPS FOR SAVING ENERGY
2 IMPORTANT SAFETY INSTRUCTIONS
4 INSTALLATION PROCESS
4 OUTDOOR UNITS INFORMATION
6 ALTERNATIVE REFRIGERANT R410A
6 SELECT THE BEST LOCATION
7 INSTALLATION SPACE
7
Individual Installation
7
8
LIFTING METHOD
8
8
8
10
The location of the Anchor bolts
Foundation for Installation
Preparation of Piping
Plumbing materials and storage methods
INSTALLATION
10 REFRIGERANT PIPING INSTALLATION
10
Precautions on Pipe connection / Valve operation
11 PIPE CONNECTIONS BETWEEN INDOOR AND
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.
• 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.
OUTDOOR UNIT
11
11
12
12
15
16
16
17
18
19
Preparation Work
Pipe Drawing Out during Single / Series connection
Refrigerant piping system
Pipe Connection Method between outdoor unit/indoor unit
Refrigerant charging
Distribution Method
Branch pipe Fitting
Leak Test and Vacuum drying
Vacuum Mode
Thermal insulation of refrigerant piping
19 ELECTRICAL WIRING
19
20
21
21
22
22
24
24
25
25
25
26
26
26
26
27
27
27
28
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
Automatic Addressing
Group Number setting
Cool & Heat selector
Static pressure compensation mode
Night Low Noise Function
Overall defrost mode
Setting the ODU address
Snow removal & rapid defrost
IDU capacity adjusting
Target pressure adjusting
Comfort Operation
Self-Diagnosis Function
30 CAUTION FOR REFRIGERANT LEAK
30
30
Introduction
Checking procedure of limiting concentration
31 INSTALLATION GUIDE AT THE SEASIDE
ENGLISH
! CAUTION
4
ENGLISH
INSTALLATION PROCESS
Determination of division work
Preparation of contract drawings
Sleeve and insert work
Indicate clearly who will be responsible for switch setting.
Take account of gradient
of drain piping
Outdoor unit foundation work
Check model name to
make sure the fitting
is made correctly
Installation of outdoor unit
Avoid short circuits and ensure
sufficient space is allowed for service
Refrigerant piping work
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)
Airtight test
Vacuum drying
Make sure no gaps are left where
the insulating materials are joined
Multiple core cable must not be used.
(suitable cable should be selected)
In the final check for 24hours at 3.8 MPa(38.7 kgf/cm2) there
must be no drop in pressure.
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
1 Outdoor Unit
8
10
12
ARUN080LTE4
ARUN100LTE4
ARUN120LTE4
Combination Unit
Model
ARUN080LTE4
ARUN100LTE4
ARUN120LTE4
Independent Unit
kg
7.5
7.5
7.5
Refrigerant
Precharged Amount
lbs
16.5
16.5
16.5
Number of maxmum connectable indoor units
13(20)
16(25)
20(30)
kg
202 x 1
208 x 1
208 x 1
Net Weight
lbs
445 x 1
458 x 1
458 x 1
mm
(920×1,680×760) × 1
(920×1,680×760) × 1
(920×1,680×760) × 1
Dimensions
(WxHxD)
inch
(36-7/32 × 66-5/32 × 29-29/32) x 1 (36-7/32 × 66-5/32 × 29-29/32) x 1 (36-7/32 × 66-5/32 × 29-29/32) x 1
mm(inch)
Ø 9.52(3/8)
Ø 9.52(3/8)
Ø 12.7(1/2)
Piping Conections
mm(inch)
Ø 19.05(3/4)
Ø 22.2(7/8)
Ø 28.58(1-1/8)
Unit
System(HP)
Make connection clearly between outdoor, indoor,
remote controller and option.
The foundation must be level even
Installation of indoor unit
Power Supply : 3Ø, 380V, 60Hz or 3Ø, 380 - 415V, 50Hz
Model Name : ARUN***LTE4
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
Unit
System(HP)
1 Outdoor Unit
16
18
20
ARUN160LTE4 ARUN180LTE4 ARUN200LTE4
ARUN160LTE4 ARUN180LTE4 ARUN200LTE4
10.5
10.5
10.5
23.1
23.1
23.1
26(40)
29(45)
32(50)
245 × 1
280 × 1
280 × 1
540 × 1
617 × 1
617 × 1
(1,240×1,680×760) × 1 (1,240×1,680×760) × 1 (1,240×1,680×760) × 1
(48-13/16 × 66-5/32 (48-13/16 × 66-5/32 (48-13/16 × 66-5/32
× 29-29/32) x 1
× 29-29/32) x 1
× 29-29/32) x 1
Ø 12.7(1/2)
Ø 15.88(5/8)
Ø 15.88(5/8)
Ø 28.58(1-1/8) Ø 28.58(1-1/8) Ø 28.58(1-1/8)
Unit
System(HP)
2 Outdoor Unit
24
26
28
ARUN240LTE4 ARUN260LTE4 ARUN280LTE4
ARUN120LTE4 ARUN140LTE4 ARUN160LTE4
ARUN120LTE4 ARUN120LTE4 ARUN120LTE4
7.5 x 2
10.5 + 7.5
10.5 + 7.5
16.5 x 2
23.1 + 16.5
23.1 + 16.5
39(48)
42(52)
45(56)
208 x 2
(245 × 1) + (208 × 1) (245 × 1) + (208 × 1)
458 x 2
(540 × 1) + (458 × 1) 540 × 1) + (458 × 1)
(1,240x1,680x760) x 1 (1,240×1,680×760) × 1
mm
(920×1,680×760) x 2 (920×1,680×760) x 2
+ (920x1,680x760) x 1 + (920×1,680×760) × 1
(48-13/16 × 66 -5/32 × 29 - (48-13/16 × 66-5/32 × 29(36-7/32 × 66-5/32 × (36-7/32 × 66-5/32 ×
inch
29/32) x 1 + (36-7/32 × 66 - 29/32) x 1 + (36-7/32 × 6629-29/32) x 2
29-29/32) x 2
5/32 × 29-29/32) x 1
5/32 × 29-29/32) x 1
mm(inch)
Ø 15.88(5/8)
Ø 15.88(5/8)
Ø 19.05(3/4)
Ø 19.05(3/4)
mm(inch) Ø 28.58(1-1/8)
Ø 34.9(1-3/8)
Ø 34.9(1-3/8)
Ø 34.9(1-3/8)
14
ARUN140LTE4
Combination Unit
Model
ARUN140LTE4
Independent Unit
kg
10.5
Refrigerant
Precharged Amount
lbs
23.1
Number of maxmum connectable indoor units
23(35)
kg
245 × 1
Net Weight
lbs
540 × 1
mm
(1,240x1,680x760) x 1
Dimensions
(48-13/16 × 66-5/32
(WxHxD)
inch
× 29-29/32) x 1
mm(inch)
Ø 12.7(1/2)
Piping Conections
mm(inch) Ø 28.58(1-1/8)
22
ARUN220LTE4
Combination Unit
ARUN120LTE4
Model
Independent Unit
ARUN100LTE4
kg
7.5 x 2
Refrigerant
Precharged Amount
lbs
16.5 x 2
Number of maxmum connectable indoor units
35(44)
kg
208 x 2
Net Weight
lbs
458 x 2
Dimensions
(WxHxD)
Explain the use of the system as clearly as possible to your customer and
make sure all relevant documentation is in order
Piping Conections
! 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 3.8MPa.
• 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.)
OUTDOOR UNITS INFORMATION
! CAUTION
Connection Ratio
200%
160%
130%
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.
• The number of ( ) means the number of Max. connectable
indoor units, when the connected capacity of indoor units is in
the table above.
2 Outdoor Unit
38
40
ARUN380LTE4 ARUN400LTE4
ARUN200LTE4 ARUN200LTE4
ARUN180LTE4 ARUN200LTE4
36
ARUN360LTE4
ARUN200LTE4
ARUN160LTE4
10.5 × 2
23.1 × 2
58(64)
(280 × 1) + (245 × 1)
(617 × 1) + (540 × 1)
(1,240×1,680×760) x 2
(48-13/16 × 66-5/32 ×
29-29/32) x 2
Ø 19.05(3/4)
Ø 41.3(1-5/8)
3 Outdoor Unit
42
44
ARUN420LTE4 ARUN440LTE4
Combination Unit
ARUN180LTE4 ARUN200LTE4
Model
Independent Unit
ARUN140LTE4 ARUN140LTE4
ARUN100LTE4 ARUN100LTE4
kg
10.5 x 2
10.5 x 2
(10.5 × 2) + 7.5 (10.5 × 2) + 7.5
Refrigerant
Precharged Amount
lbs
23.1 x 2
23.1 x 2
(23.1 × 2) + 16.5 (23.1 × 2) + 16.5
Number of maxmum connectable indoor units
61(64)
64
64
64
kg
280 x 2
280 x 2
(280 × 1) + (245 x 1) + (208 × 1) (280 × 1) + (245 x 1) + (208 × 1)
Net Weight
lbs
617 x 2
617 x 2
(617 × 1) + (540 x 1) + (458 × 1) (617 × 1) + (540 x 1) + (458 × 1)
(1,240×1,680×760) × 2 (1,240×1,680×760) × 2
mm
(1,240×1,680×760) x 2 (1,240×1,680×760) x 2
+ (920×1,680×760) × 1 + (920×1,680×760) × 1
Dimensions
(48-13/16
×
66(48-13/16
×
66(48-13/16 × 66-5/32 × 29- (48-13/16 × 66-5/32 × 29(WxHxD)
5/32 × 29-29/32) 5/32 × 29-29/32) 29/32) x 2 + (36-7/32 × 29/32) x 2 + (36-7/32 × 66inch
x2
x2
66-5/32 × 29-29/32) x 1 5/32 × 29-29/32) x 1
mm(inch)
Ø 19.05(3/4)
Ø 19.05(3/4)
Ø 19.05(3/4)
Ø 19.05(3/4)
Piping Conections
mm(inch) Ø 41.3(1-5/8)
Ø 41.3(1-5/8)
Ø 41.3(1-5/8)
Ø 41.3(1-5/8)
Unit
System(HP)
Combination Ratio(50~200%)
Outdoor Number
Single outdoor units
Double outdoor units
Triple outdoor units
2 Outdoor Unit
30
32
34
ARUN300LTE4 ARUN320LTE4 ARUN340LTE4
Combination Unit
ARUN180LTE4 ARUN200LTE4 ARUN200LTE4
Model
Independent Unit
ARUN120LTE4 ARUN120LTE4 ARUN140LTE4
kg
10.5 + 7.5
10.5 + 7.5
10.5 × 2
Refrigerant
Precharged Amount
lbs
23.1 + 16.5
23.1 + 16.5
23.1 × 2
Number of maxmum connectable indoor units
49(60)
52(64)
55(64)
kg
(280 × 1) + (208 × 1) (280 × 1) + (208 × 1) (280 × 1) + (245 × 1)
Net Weight
lbs
(617 × 1) + (458 × 1) (617 × 1) + (458 × 1) (617 × 1) + (540 × 1)
(1,240×1,680×760) × 1 (1,240×1,680×760) × 1
mm
(1,240×1,680×760) x 2
+ (920×1,680×760) × 1 + (920×1,680×760) × 1
Dimensions
(48-13/16 × 66-5/32 × 29- (48-13/16 × 66-5/32 × 29(WxHxD)
(48-13/16 × 66-5/32
inch
29/32) x 1 + (36-7/32 × 66- 29/32) x 1 + (36-7/32 × 66× 29-29/32) x 2
5/32 × 29-29/32) x 1
5/32 × 29-29/32) x 1
mm(inch)
Ø 19.05(3/4)
Ø 19.05(3/4)
Ø 19.05(3/4)
Piping Conections
mm(inch) Ø 34.9(1-3/8)
Ø 34.9(1-3/8)
Ø 34.9(1-3/8)
Unit
System(HP)
5
3 Outdoor Unit
54
56
58
60
ARUN540LTE4 ARUN560LTE4 ARUN580LTE4 ARUN600LTE4
Combination Unit
ARUN200LTE4 ARUN200LTE4 ARUN200LTE4 ARUN200LTE4
Model
ARUN200LTE4 ARUN200LTE4 ARUN200LTE4 ARUN200LTE4
Independent Unit
ARUN140LTE4 ARUN160LTE4 ARUN180LTE4 ARUN200LTE4
kg
10.5 × 3
10.5 × 3
10.5 x 3
10.5 x 3
Refrigerant
Precharged Amount
lbs
23.1 x 3
23.1 x 3
23.1 x 3
23.1 x 3
Number of maxmum connectable indoor units
64
64
64
64
kg
(280 × 2) + (245 x 1) (280 × 2) + (245 x 1)
280 × 3
280 × 3
Net Weight
lbs
(617 × 2) + (540 × 1) (617 × 2) + (540 × 1)
617 × 3
617 × 3
mm
(1,240x1,680x760) x 3 (1,240×1,680×760) × 3 (1,240×1,680×760) × 3 (1,240×1,680×760) × 3
Dimensions
(48-13/16 × 66-5/32 (48-13/16 × 66(48-13/16 × 66(48-13/16 × 66(WxHxD)
inch
× 29-29/32) x 3 5/32 × 29-29/32) x 3 5/32 × 29-29/32) x 3 5/32 × 29-29/32) x 3
mm(inch)
Ø 19.05(3/4)
Ø 19.05(3/4)
Ø 19.05(3/4)
Ø 19.05(3/4)
Piping Conections
mm(inch) Ø 41.3(1-5/8)
Ø 41.3(1-5/8)
Ø 41.3(1-5/8)
Ø 41.3(1-5/8)
Unit
System(HP)
4 Outdoor Unit
62
64
66
68
ARUN620LTE4 ARUN640LTE4 ARUN660LTE4 ARUN680LTE4
Combination Unit
ARUN180LTE4 ARUN180LTE4 ARUN180LTE4 ARUN200LTE4
ARUN160LTE4 ARUN180LTE4 ARUN180LTE4 ARUN200LTE4
Model
Independent Unit
ARUN140LTE4 ARUN140LTE4 ARUN160LTE4 ARUN140LTE4
ARUN140LTE4 ARUN140LTE4 ARUN140LTE4 ARUN140LTE4
kg
10.5 x 4
10.5 x 4
10.5 x 4
10.5 x 4
Refrigerant
Precharged Amount
lbs
23.1 x 4
23.1 x 4
23.1 x 4
23.1 x 4
Number of maxmum connectable indoor units
64
64
64
64
kg
(280 × 1) + (245 x 3) (280 × 2) + (245 x 2) (280 × 2) + (245 x 2) (280 × 2) + (245 x 2)
Net Weight
lbs
(617 × 1) + (540 × 3) (617 × 2) + (540 × 2) (617 × 2) + (540 × 2) (617 × 2) + (540 × 2)
mm
(1,240x1.680x760) x 4 (1,240×1,680×760) × 4 (1,240×1,680×760) × 4 (1,240×1,680×760) × 4
Dimensions
(48-13/16 × 66-5/32 (48-13/16 × 66-5/32 × (48-13/16 × 66-5/32 × (48-13/16 × 66-5/32 ×
(WxHxD)
inch
× 29-29/32) x 4
29-29/32) x 4
29-29/32) x 4
29-29/32) x 4
mm(inch)
Ø 22.2(7/8)
Ø 22.2(7/8)
Ø 22.2(7/8)
Ø 22.2(7/8)
Piping Conections
mm(inch) Ø 44.5(1-3/4)
Ø 44.5(1-3/4)
Ø 53.98(2-1/8) Ø 53.98(2-1/8)
Unit
System(HP)
4 Outdoor Unit
70
72
74
76
ARUN700LTE4 ARUN720LTE4 ARUN740LTE4 ARUN760LTE4
Combination Unit
ARUN200LTE4 ARUN200LTE4 ARUN200LTE4 ARUN200LTE4
ARUN200LTE4 ARUN200LTE4 ARUN200LTE4 ARUN200LTE4
Model
Independent Unit
ARUN160LTE4 ARUN180LTE4 ARUN180LTE4 ARUN180LTE4
ARUN140LTE4 ARUN140LTE4 ARUN160LTE4 ARUN180LTE4
kg
10.5 x 4
10.5 x 4
10.5 x 4
10.5 x 4
Refrigerant
Precharged Amount
lbs
23.1 x 4
23.1 x 4
23.1 x 4
23.1 x 4
Number of maxmum connectable indoor units
64
64
64
64
kg
(280 × 2) + (245 x 2) (280 × 3) + (245 x 1) (280 × 3) + (245 x 1)
280 × 4
Net Weight
lbs
(617 × 2) + (540 × 2) (617 × 3) + (540 × 1) (617 × 3) + (540 × 1)
617 × 4
mm
(1,240×1,680×760) × 4 (1,240×1,680×760) × 4 (1,240×1,680×760) × 4 (1,240×1,680×760) × 4
Dimensions
(48-13/16 × 66-5/32 (48-13/16 × 66-5/32 (48-13/16 × 66-5/32 (48-13/16 × 66-5/32
(WxHxD)
inch
× 29-29/32) x 4
× 29-29/32) x 4
× 29-29/32) x 4
× 29-29/32) x 4
mm(inch)
Ø 22.2(7/8)
Ø 22.2(7/8)
Ø 22.2(7/8)
Ø 22.2(7/8)
Piping Conections
mm(inch) Ø 53.98(2-1/8) Ø 53.98(2-1/8) Ø 53.98(2-1/8) Ø 53.98(2-1/8)
Unit
System(HP)
4 Outdoor Unit
78
80
ARUN780LTE4
ARUN800LTE4
Combination Unit
ARUN200LTE4
ARUN200LTE4
ARUN200LTE4
ARUN200LTE4
Model
Independent Unit
ARUN200LTE4
ARUN200LTE4
ARUN180LTE4
ARUN200LTE4
kg
10.5 x 4
10.5 x 4
Refrigerant
Precharged Amount
lbs
23.1 x 4
23.1 x 4
Number of maxmum connectable indoor units
64
64
kg
280 × 4
280 × 4
Net Weight
lbs
617 x 4
617 x 4
mm
(1,240×1,680×760) × 4
(1,240×1,680×760) × 4
Dimensions
(WxHxD)
inch
(48-13/16 × 66-5/32 × 29-29/32) x 4 (48-13/16 × 66-5/32 × 29-29/32) x 4
mm(inch)
Ø 22.2(7/8)
Ø 22.2(7/8)
Piping Conections
mm(inch)
Ø 53.98(2-1/8)
Ø 53.98(2-1/8)
Unit
System(HP)
Model Name : ARUN***LTS4
1 Outdoor Unit
8
10
12
ARUN080LTS4
ARUN100LTS4
ARUN120LTS4
Combination Unit
Model
ARUN080LTS4
ARUN100LTS4
ARUN120LTS4
Independent Unit
Refrigerant
kg
6.5
6.5
6.5
lbs
14.3
14.3
14.3
Precharged Amount
Number of maxmum connectable indoor units
13(20)
16(25)
20(30)
kg
195 × 1
201 × 1
201 × 1
Net Weight
lbs
430 × 1
443 × 1
443 × 1
mm
(920×1,680×760) × 1
(920×1,680×760) × 1
(920×1,680×760) × 1
Dimensions
(WxHxD)
inch
(36-7/32 × 66-5/32 × 29-29/32) x 1 (36-7/32 × 66-5/32 × 29-29/32) x 1 (36-7/32 × 66-5/32 × 29-29/32) x 1
mm(inch)
Ø 9.52(3/8)
Ø 9.52(3/8)
Ø 12.7(1/2)
Piping Conections
mm(inch)
Ø 19.05(3/4)
Ø 22.2(7/8)
Ø 28.58(1-1/8)
Unit
System(HP)
Unit
System(HP)
1 Outdoor Unit
16
18
20
ARUN160LTS4 ARUN180LTS4 ARUN200LTS4
ARUN160LTS4 ARUN180LTS4 ARUN200LTS4
8.5
8.5
10
18.7
18.7
22
26(40)
29(45)
32(50)
235 × 1
270 × 1
280 × 1
518 × 1
595 × 1
617 × 1
(1,240×1,680×760) × 1 (1,240×1,680×760) × 1 (1,240×1,680×760) × 1
(48-13/16 × 66-5/32 (48-13/16 × 66-5/32 (48-13/16 × 66-5/32
× 29-29/32) x 1
× 29-29/32) x 1
× 29-29/32) x 1
Ø 12.7(1/2)
Ø 15.88(5/8)
Ø 15.88(5/8)
Ø 28.58(1-1/8) Ø 28.58(1-1/8) Ø 28.58(1-1/8)
Unit
System(HP)
2 Outdoor Unit
24
26
28
ARUN240LTS4 ARUN260LTS4 ARUN280LTS4
ARUN120LTS4 ARUN140LTS4 ARUN160LTS4
ARUN120LTS4 ARUN120LTS4 ARUN120LTS4
6.5 × 2
8.5 + 6.5
8.5 + 6.5
14.3 × 2
18.7 + 14.3
18.7 + 14.3
39(48)
42(52)
45(56)
201 × 2
(235 × 1) + (201 × 1) (235 × 1) + (201 × 1)
443 × 2
(518 × 1) + (443 × 1) (518 × 1) + (443 × 1)
(1,240x1,680x760) x 1 + (1,240×1,680×760) × 1 +
mm
(920×1,680×760) x 2 (920×1,680×760) x 2
(920x1,680x760) x 1 (920×1,680×760) × 1
(48-13/16 × 66 -5/32 × 29 - (48-13/16 × 66-5/32 × 29(36-7/32 × 66-5/32 × (36-7/32 × 66-5/32 ×
inch
29/32) x 1 + (36-7/32 × 66 - 29/32) x 1 + (36-7/32 × 6629-29/32) x 2
29-29/32) x 2
5/32 × 29-29/32) x 1
5/32 × 29-29/32) x 1
mm(inch)
Ø 15.88(5/8)
Ø 15.88(5/8)
Ø 19.05(3/4)
Ø 19.05(3/4)
mm(inch) Ø 28.58(1-1/8)
Ø 34.9(1-3/8)
Ø 34.9(1-3/8)
Ø 34.9(1-3/8)
14
ARUN140LTS4
Combination Unit
Model
ARUN140LTS4
Independent Unit
kg
8.5
Refrigerant
Precharged Amount
lbs
18.7
Number of maxmum connectable indoor units
23(35)
kg
235 × 1
Net Weight
lbs
518 × 1
mm
(1,240x1,680x760) x 1
Dimensions
(48-13/16 × 66-5/32
(WxHxD)
inch
× 29-29/32) x 1
mm(inch)
Ø 12.7(1/2)
Piping Conections
mm(inch) Ø 28.58(1-1/8)
22
Combination Unit
ARUN220LTS4
ARUN120LTS4
Model
Independent Unit
ARUN100LTS4
kg
6.5 × 2
Refrigerant
Precharged Amount
lbs
14.3 × 2
Number of maxmum connectable indoor units
35(44)
kg
201 × 2
Net Weight
lbs
443 × 2
Dimensions
(WxHxD)
Piping Conections
Unit
System(HP)
30
ARUN300LTS4
Combination Unit
ARUN180LTS4
Model
Independent Unit
ARUN120LTS4
kg
8.5 + 6.5
Refrigerant
Precharged Amount
lbs
18.7 + 14.3
Number of maxmum connectable indoor units
49(60)
kg
(270 × 1) + (201 × 1)
Net Weight
lbs
(595× 1) + (443 × 1)
mm
(1,240x1,680x760) x 2
Dimensions
(48-13/16 × 66-5/32
(WxHxD)
inch
× 29-29/32) x 2
Piping Conections
mm(inch)
mm(inch)
Ø 19.05(3/4)
Ø 34.9(1-3/8)
2 Outdoor Unit
32
34
36
ARUN320LTS4 ARUN340LTS4 ARUN360LTS4
ARUN200LTS4 ARUN200LTS4 ARUN200LTS4
ARUN120LTS4 ARUN140LTS4 ARUN160LTS4
10 + 6.5
10 + 8.5
10 + 8.5
22 + 14.3
22 + 18.7
22 + 18.7
52(64)
55(64)
58(64)
(280 × 1) + (201 × 1) (280 × 1) + (235 × 1) (280 × 1) + (235 × 1)
(617 × 1) + (443 × 1) (617 × 1) + (518 × 1) (617 × 1) + (518 × 1)
(1,240×1,680×760) x 2 (1,240×1,680×760) x 2 (1,240×1,680×760) x 2
(48-13/16 × 66-5/32
× 29-29/32) x 2
(48-13/16 × 66-5/32 (48-13/16 × 66-5/32 ×
× 29-29/32) x 2
29-29/32) x 2
Ø 19.05(3/4)
Ø 34.9(1-3/8)
Ø 19.05(3/4)
Ø 34.9(1-3/8)
3 Outdoor Unit
42
44
ARUN420LTS4 ARUN440LTS4
Combination Unit
ARUN180LTS4 ARUN200LTS4
Model
ARUN140LTS4 ARUN140LTS4
Independent Unit
ARUN100LTS4 ARUN100LTS4
kg
10 + 8.5
10 × 2
(8.5 × 2) + 6.5 10 + 8.5 + 6.5
Refrigerant
Precharged Amount
lbs
22 + 18.7
22 × 2
(18.7 × 2) + 14.3 22 + 18.7 + 14.3
Number of maxmum connectable indoor units
61(64)
64
64
64
(270 × 1) + (235 × 1) (280 × 1) + (235 × 1)
kg
(280 × 1) + (270 x 1)
280 × 2
+ (201 × 1)
+ (201 × 1)
Net Weight
(595 × 1) + (518 × 1) + (617 × 1) + (518 × 1) +
lbs
(617 × 1) + (595 × 1)
617 × 2
(443 × 1)
(443 × 1)
(1,240×1,680×760) × 2 (1,240×1,680×760) × 2
mm
(1,240×1,680×760) x 2 (1,240×1,680×760) x 2
+ (920×1,680×760) × 1 + (920×1,680×760) × 1
Dimensions
(48-13/16 × 66-5/32 × (48-13/16 × 66-5/32 ×
(WxHxD)
(48-13/16 × 66-5/32 × (48-13/16 × 66-5/32 × 29-29/32) x 2 + (36- 29-29/32) x 2 + (36inch
7/32 × 66-5/32 × 29- 7/32 × 66-5/32 × 2929-29/32) x 2
29-29/32) x 2
29/32) x 1
29/32) x 1
mm(inch)
Ø 19.05(3/4)
Ø 19.05(3/4)
Ø 19.05(3/4)
Ø 19.05(3/4)
Piping Conections
mm(inch) Ø 41.3(1-5/8)
Ø 41.3(1-5/8)
Ø 41.3(1-5/8)
Ø 41.3(1-5/8)
Unit
System(HP)
2 Outdoor Unit
38
40
ARUN380LTS4 ARUN400LTS4
ARUN200LTS4 ARUN200LTS4
ARUN180LTS4 ARUN200LTS4
Ø 19.05(3/4)
Ø 41.3(1-5/8)
ENGLISH
3 Outdoor Unit
46
48
50
52
ARUN460LTE4 ARUN480LTE4 ARUN500LTE4 ARUN520LTE4
Combination Unit
ARUN200LTE4 ARUN200LTE4 ARUN200LTE4 ARUN200LTE4
Model
ARUN160LTE4 ARUN180LTE4 ARUN200LTE4 ARUN200LTE4
Independent Unit
ARUN100LTE4 ARUN100LTE4 ARUN100LTE4 ARUN120LTE4
kg
(10.5 × 2) + 7.5 (10.5 × 2) + 7.5 (10.5 × 2) + 7.5 (10.5 × 2) + 7.5
Refrigerant
Precharged Amount
lbs
(23.1 × 2) + 16.5 (23.1 × 2) + 16.5 (23.1 × 2) + 16.5 (23.1 × 2) + 16.5
Number of maxmum connectable indoor units
64
64
64
64
kg
(280 × 1) + (245 x 1) + (208 × 1) (280 x 2) +(208 × 1) (280 x 2) +(208 × 1) (280 x 2) +(208 × 1)
Net Weight
lbs
(617× 1) + (540 x 1) + (458 × 1) (617 x 2) +(458 × 1) (617 x 2) +(458 × 1) (617 x 2) +(458 × 1)
(1,240×1,680×760) × 2 (1,240×1,680×760) × 2 (1,240×1,680×760) × 2 (1,240×1,680×760) × 2
mm
+ (920×1,680×760) × 1 + (920×1,680×760) × 1 + (920×1,680×760) × 1 + (920×1,680×760) × 1
Dimensions
(48-13/16 × 66-5/32 × 29- (48-13/16 × 66-5/32 × 29- (48-13/16 × 66-5/32 × 29- (48-13/16 × 66-5/32 × 29(WxHxD)
inch
29/32) x 2 + (36-7/32 × 29/32) x 2 + (36-7/32 × 29/32) x 2 + (36-7/32 × 29/32) x 2 + (36-7/32 ×
66-5/32 × 29-29/32) x 1 66-5/32 × 29-29/32) x 1 66-5/32 × 29-29/32) x 1 66-5/32 × 29-29/32) x 1
mm(inch)
Ø 19.05(3/4)
Ø 19.05(3/4)
Ø 19.05(3/4)
Ø 19.05(3/4)
Piping Conections
mm(inch) Ø 41.3(1-5/8)
Ø 41.3(1-5/8)
Ø 41.3(1-5/8)
Ø 41.3(1-5/8)
Unit
System(HP)
6
ENGLISH
3 Outdoor Unit
46
48
50
52
ARUN460LTS4 ARUN480LTS4 ARUN500LTS4 ARUN520LTS4
Combination Unit
ARUN200LTS4 ARUN200LTS4 ARUN200LTS4 ARUN200LTS4
Model
ARUN160LTS4 ARUN180LTS4 ARUN200LTS4 ARUN200LTS4
Independent Unit
ARUN100LTS4 ARUN100LTS4 ARUN100LTS4 ARUN120LTS4
kg
10 + 8.5 + 6.5 10 + 8.5 + 6.5 (10 × 2) + 6.5
(10 × 2) + 6.5
Refrigerant
Precharged Amount
lbs
22 + 18.7 + 14.3 22 + 18.7 + 14.3 (22 × 2) + 14.3 (22 × 2) + 14.3
Number of maxmum connectable indoor units
64
64
64
64
kg
(280 × 1) + (235 × 1) + (201 × 1) (280 × 1) + (270 × 1) + (201 × 1) (280 × 2) + (201 × 1) (280 × 2) + (201 × 1)
Net Weight
lbs
(617 × 1) + (518 × 1) + (443 × 1) (617 × 1) + (595 × 1) + (443 × 1) (617 × 2) + (443 × 1) (617 × 2) + (443 × 1)
(1,240×1,680×760) × 2 (1,240×1,680×760) × 2 (1,240×1,680×760) × 2 (1,240×1,680×760) × 2
mm
+ (920×1,680×760) × 1 + (920×1,680×760) × 1 + (920×1,680×760) × 1 + (920×1,680×760) × 1
Dimensions
(48-13/16 × 66-5/32 × 29- (48-13/16 × 66-5/32 × 29- (48-13/16 × 66-5/32 × 29- (48-13/16 × 66-5/32 × 29(WxHxD)
inch
29/32) x 2 + (36-7/32 × 29/32) x 2 + (36-7/32 × 29/32) x 2 + (36-7/32 × 29/32) x 2 + (36-7/32 ×
66-5/32 × 29-29/32) x 1 66-5/32 × 29-29/32) x 1 66-5/32 × 29-29/32) x 1 66-5/32 × 29-29/32) x 1
mm(inch)
Ø 19.05(3/4)
Ø 19.05(3/4)
Ø 19.05(3/4)
Ø 19.05(3/4)
Piping Conections
mm(inch) Ø 41.3(1-5/8)
Ø 41.3(1-5/8)
Ø 41.3(1-5/8)
Ø 41.3(1-5/8)
Unit
System(HP)
3 Outdoor Unit
54
56
58
60
ARUN540LTS4 ARUN560LTS4 ARUN580LTS4 ARUN600LTS4
Combination Unit
ARUN200LTS4 ARUN200LTS4 ARUN200LTS4 ARUN200LTS4
Model
ARUN200LTS4 ARUN200LTS4 ARUN200LTS4 ARUN200LTS4
Independent Unit
ARUN140LTS4 ARUN160LTS4 ARUN180LTS4 ARUN200LTS4
kg
(10 × 2) + 8.5
(10 × 2) + 8.5
(10 × 2) + 8.5
10 x 3
Refrigerant
Precharged Amount
lbs
(22 × 2) + 18.7 (22 × 2) + 18.7 (22 × 2) + 18.7
22 x 3
Number of maxmum connectable indoor units
64
64
64
64
kg
(280 × 2) + (235 × 1) (280 × 2) + (235 × 1) (280 × 2) + (270 × 1)
280 × 3
Net Weight
lbs
(617 × 2) + (518 × 1) (617 × 2) + (518 × 1) (617 × 2) + (595 × 1)
617 × 3
mm
(1,240x1,680x760) x 3 (1,240×1,680×760) × 3 (1,240×1,680×760) × 3 (1,240×1,680×760) × 3
Dimensions
(48-13/16 × 66-5/32 (48-13/16 × 66-5/32 × (48-13/16 × 66-5/32 × (48-13/16 × 66-5/32 ×
(WxHxD)
inch
× 29-29/32) x 3
29-29/32) x 3
29-29/32) x 3
29-29/32) x 3
mm(inch)
Ø 19.05(3/4)
Ø 19.05(3/4)
Ø 19.05(3/4)
Ø 19.05(3/4)
Piping Conections
mm(inch) Ø 41.3(1-5/8)
Ø 41.3(1-5/8)
Ø 41.3(1-5/8)
Ø 41.3(1-5/8)
Unit
System(HP)
4 Outdoor Unit
62
64
66
68
ARUN620LTS4 ARUN640LTS4 ARUN660LTS4 ARUN680LTS4
Combination Unit
ARUN180LTS4 ARUN180LTS4 ARUN180LTS4 ARUN200LTS4
ARUN160LTS4 ARUN180LTS4 ARUN180LTS4 ARUN200LTS4
Model
Independent Unit
ARUN140LTS4 ARUN140LTS4 ARUN160LTS4 ARUN140LTS4
ARUN140LTS4 ARUN140LTS4 ARUN140LTS4 ARUN140LTS4
kg
8.5 x 4
8.5 x 4
8.5 x 4
(10 × 2) + (8.5 × 2)
Refrigerant
Precharged Amount
lbs
18.7 x 4
18.7 x 4
18.7 x 4
(22 × 2) + (18.7 × 2)
Number of maxmum connectable indoor units
64
64
64
64
kg
(270 × 1) + (235 × 3) (270 × 2) + (235 × 2) (270 × 2) + (235 × 2) (280 × 2) + (235 × 2)
Net Weight
lbs
(595 × 1) + (518 × 1) (595 × 2) + (518 × 2) (595 × 2) + (518 × 2) (617 × 2) + (518 × 2)
mm
(1,240x1,680x760) x 4 (1,240×1,680×760) × 4 (1,240×1,680×760) × 4 (1,240×1,680×760) × 4
Dimensions
(48-13/16 × 66-5/32 (48-13/16 × 66-5/32 × (48-13/16 × 66-5/32 × (48-13/16 × 66-5/32 ×
(WxHxD)
inch
× 29-29/32) x 4
29-29/32) x 4
29-29/32) x 4
29-29/32) x 4
mm(inch)
Ø 22.2(7/8)
Ø 22.2(7/8)
Ø 22.2(7/8)
Ø 22.2(7/8)
Piping Conections
mm(inch) Ø 44.5(1-3/4)
Ø 44.5(1-3/4)
Ø 53.98(2-1/8) Ø 53.98(2-1/8)
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 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.
! 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.
Unit
System(HP)
4 Outdoor Unit
Unit
System(HP)
70
72
74
76
ARUN700LTS4 ARUN720LTS4 ARUN740LTS4 ARUN760LTS4
ARUN200LTS4 ARUN200LTS4 ARUN200LTS4 ARUN200LTS4
ARUN200LTS4 ARUN200LTS4 ARUN200LTS4 ARUN200LTS4
Model
Independent Unit
ARUN160LTS4 ARUN180LTS4 ARUN180LTS4 ARUN180LTS4
ARUN140LTS4 ARUN140LTS4 ARUN160LTS4 ARUN180LTS4
kg
(10 × 2) + (8.5 × 2) (10 × 2) + (8.5 × 2) (10 × 2) + (8.5 × 2) (10 × 2) + (8.5 × 2)
Refrigerant
Precharged Amount
lbs
(22 × 2) + (18.7 × 2) (22 × 2) + (18.7 × 2) (22 × 2) + (18.7 × 2) (22 × 2) + (18.7 × 2)
Number of maxmum connectable indoor units
64
64
64
64
kg
(280 × 2) + (235 × 2) (280 × 2) + (270 × 1) + (235 × 1) (280 × 2) + (270 × 1) + (235 × 1) (280 × 2) + (270 × 2)
Net Weight
lbs
(617 × 2) + (518 × 2) (617 × 2) + (595 × 1) + (518 × 1) (617 × 2) + (595 × 1) + (518 × 1) (617 × 2) + (595 × 2)
mm
(1,240×1,680×760) × 4 (1,240×1,680×760) × 4 (1,240×1,680×760) × 4 (1,240×1,680×760) × 4
Dimensions
(48-13/16 × 66-5/32 (48-13/16 × 66-5/32 (48-13/16 × 66-5/32 (48-13/16 × 66-5/32
(WxHxD)
inch
× 29-29/32) x 4
× 29-29/32) x 4
× 29-29/32) x 4
× 29-29/32) x 4
mm(inch)
Ø 22.2(7/8)
Ø 22.2(7/8)
Ø 22.2(7/8)
Ø 22.2(7/8)
Piping Conections
mm(inch) Ø 53.98(2-1/8) Ø 53.98(2-1/8) Ø 53.98(2-1/8) Ø 53.98(2-1/8)
Combination Unit
4 Outdoor Unit
78
80
ARUN780LTS4
ARUN800LTS4
Combination Unit
ARUN200LTS4
ARUN200LTS4
ARUN200LTS4
ARUN200LTS4
Model
Independent Unit
ARUN200LTS4
ARUN200LTS4
ARUN180LTS4
ARUN200LTS4
kg
(10 × 3) + (8.5 × 1)
10 x 4
Refrigerant
Precharged Amount
lbs
(22 × 3) + (18.7 × 1)
22 x 4
Number of maxmum connectable indoor units
64
64
kg
(280 × 3) + (270 × 1)
280 × 4
Net Weight
lbs
(617 × 3) + (595 × 1)
617 × 4
mm
(1,240×1,680×760) × 4
(1,240×1,680×760) × 4
Dimensions
(WxHxD)
inch
(48-13/16 × 66-5/32 × 29-29/32) x 4 (48-13/16 × 66-5/32 × 29-29/32) x 4
mm(inch)
Ø 22.2(7/8)
Ø 22.2(7/8)
Piping Conections
mm(inch)
Ø 53.98(2-1/8)
Ø 53.98(2-1/8)
Unit
System(HP)
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.
- 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.)
7
Individual Installation
During the installation of the unit, consider service, inlet, and outlet
acquire the minimum space as shown in the figures below.
Category
A
4 sides
are
walls
A
A
A
A
Rear
to
Rear
Only 2
sides
are
walls
A
B
B
A
B
A
B
A D
B
A D
B
A D
B
B
B
B
D
BA B
A D
A
A B
A
A
D
B
A D
D
B
D
D
DA D
B
A D
B
B
B
B
B
BA
A D
D
B
A
A
A
A
B
F
A D
D
B
D
F
A D
D
D
B
A F
B
B
B
F
B
BA D
F
A D
A
A
A
F
D
B
F
F
B
F
F
FA D
D
B
A
B
D
A F
D
B
D
F
D
DA D
B
A F
B
B
B
F
B
BA D
F
A
A
A D
A
F
D
B
F
F
F
D
F
F B
A D
B
A
D
B
A FD
B
D
FD
D
A D
B
A F
B
B
B
F
B
BA D
F
A
A D
A
A
FB
D
F
FB
F
F
FA D
DB
A
B
A DF
D
B
DF
D
DA D
B
A F
B
B
B
F
B
B
A D
F
A
A D
A
A
F
D
B
F
F
F
B
F
F D
A D
B
A
D
B
F
A D
B
D
D
F
D
A D
B
A F
B
B
B
F
B
B
A D
F
A
A D
A
A A
F
D
B
F
F
F
B
F
F D
A D
B
A
D
B
A D
B
D
D
D
A D
A B
B
B
B
B
BA B
A
A
B
A
A
A A
B
A
B
A
A B
B
B
B
B
A B
A
A
A
A A
C
C
C
C
C
C
E
C
C
C
C EC
E
C
C
E
C
E
E
C
C
EE
E
EE
E E
E
E
C
E
E
C
E
E E
C
C
C
C
C
C C
E
E
C
C
E
E
E
E
E E
C
C
C
C
C C
E
E
C
C
E
C
E
E
C
C
E
E
E
E
E E
C
C
C
C
C C
A≥10
B≥300
C≥10
D≥500
A≥50
B≥100
C≥50
D≥500
A≥10
B≥300
C≥10
D≥500
E≥20
A≥50
B≥100
C≥50
D≥500
E≥100
A≥10
B≥300
C≥10
D≥500
E≥20
F≥600
A≥50
B≥100
C≥50
D≥500
E≥100
F≥500
A≥10
B≥300
C≥10
D≥300
E≥20
F≥500
A≥50
B≥100
C≥50
D≥100
E≥100
F≥500
A≥10
B≥500
C≥10
D≥500
E≥20
F≥900
A≥50
B≥500
C≥50
D≥500
E≥100
F≥600
- 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.
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.
C
C
C
C
C
C
C
C
C
C C
E
E
C
C
E
C
E
E
C
C
E
E
E
E
E E
C
C
C
C
C C
E
E
E
E
C
C
E
E
C
E
E
E
E
C
C
E
E
E
E
E E
E
E
E
E
E E
C
C
C
C
C C
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E E
E
E
E
E
E E
1500
h2
B
500
A
E
E
E
E
h1
Limitations on
the
height
of the
wall
(Refer
to 4 side
walls)
Case 1
Case 2
(10mm≤Side Space≤49mm) (Side Space≥49mm)
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.
45° or
more
240 or
more
50 or more
Locking points for
transportation ropes
A≥10
B≥500
C≥10
D≥500
E≥20
F≥1200
A≥50
B≥500
C≥50
D≥500
E≥100
F≥900
A≥10
B≥500
C≥10
D≥500
E≥20
F≥1800
A≥50
B≥500
C≥50
D≥500
E≥100
F≥1200
A≥10
B≥300
A≥200
B≥300
E≥400
• 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 front side by
1/2 of h1
- Additional Space on the inlet side by 1/2
of h2
- h1 = A(Actual height) - 1500
- h2 = B(Actual height) - 500
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.
• 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.
ENGLISH
INSTALLATION SPACE
8
Ⓐ 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
Unit : mm
m
00m
ast 1
At le
For outdoor units
should not be
supported only by
the corner supports.
m
m
00m
00m
ast 1 least 1
e
l
Center of the Unit
t
A
At
m
00m
ast 1
At le
m
00m 00mm
1
ast 1
At le At least
Center of the Unit
The location of the Anchor bolts
Unit : mm
200
200
100
75
75
• 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’s legs before being fixed.
• The outdoor unit supports should have minimum height of 200mm.
• Anchor bolts must be inserted at least 75mm.
! 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.
! CAUTION
• 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.
760
730
At least 65
At least 65
65
65
ENGLISH
INSTALLATION
Chassis
Outdoor Unit Capacity
A(mm)
B(mm)
UX2
UX3
8~12 HP
14~20 HP
920
1240
792
1102
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).
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 1.5m longer than the pipe length.
Pipe
Copper
tube
At least
200mm
Reamer
90
Slanted Uneven Rough
Point down
9
Opening shutoff valve
1 Remove the cap and turn the valve counter clockwise with the
hexagon wrench.
2 Turn it until the shaft stops.
Handle
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
Bar
"A"
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.
Indoor unit
[kW(Btu/h]
<5.6(19,100)
<16.0(54,600)
<22.4(76,400)
Pipe
Gas
1/2"
5/8"
3/4"
wrench.
2 Securely tighten the valve until the shaft contacts the main body seal.
"A"
Liquid
1/4"
3/8"
3/8"
Gas
0.5~0.8
0.8~1.0
1.0~1.3
Liquid
0~0.5
0.5~0.8
0.5~0.8
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.
Smooth all round
Inside is shining without scratches.
= Improper flaring =
3 Make sure to tighten the cap securely.
* For the tightening torque, refer to the table on the below.
Tightening torque
Tightening torque N·m(Turn clockwise to close)
Closed
Ø6.35
Ø9.52
10.0±1.0
Ø15.88
12.0±1.2
Ø19.05
14.0±1.4
Even length
all round
Ø25.4
Cap
Service Flare Gas line piping
(Valve lid) port nut attached to unit
Hexagonal
Opened wrench
6.0±0.6
Ø12.7
Ø22.2
Inclined Surface Cracked Uneven
damaged
thickness
Shaft
(valve body)
Shutoff
valve
size
4mm
17.6±2.0
20.0±2.0
5.0±0.0
30.0±3.0
38±4
55±6
12.7±2 75±7
5mm
25.0±2.5
8mm
16±2
-
110±10
-
25±3
Insulation of shutoff valve
Flare shape and flare nut tightening torque
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:
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
Tightening
torque(N·m)
A(mm)
Ø9.52
38±4
12.8-13.2
Ø12.7
55±6
16.2-16.6
Ø15.88
75±7
19.3-19.7
Flare shape
- Add the insulation over 10mm thickness at high humidity environment.
90° ±2
A
- Heat insulation material to be prepared... EPDM (Ethylene Propylene Diene Methylene)-over 120°C the heat-resistance temperature.
45
°
Fastening band
(accessory)
±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.
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.
10
! CAUTION
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.
Refrigerant piping on three principles
Drying
Cleanliness
Airtight
Should be no moisture
inside
No dust inside.
There is no refrigerant
leakage
Items
Dust
Moisture
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.
1 Always use the nitrogen.(not use oxygen, carbon dioxide, and
a Chevron gas): Please use the following nitrogen pressure
0.02MPa 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.
2 Always use a pressure reducing valve.
3 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)
REFRIGERANT PIPING INSTALLATION
Precautions on Pipe connection / Valve operation
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.
Service Port
Nitrogen substitution method
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
Nitrogen gas
Pressure 0.02MPa less
Oxide scale
Note) should not block the outlet side.
When the internal pressure in pipe is abo
ve the atmospheric pressure, pinhole is o
ccurred and it is a leakage cause.
Taping
(Should not
contain air)
Liquid pipe
Gas pipe
Refrigerant
Charging Port
! WARNING
Auxiliary valve
Nitrogen
ENGLISH
Plumbing materials and storage methods
• 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.)
11
Pipe Drawing Out during Single / Series connection
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.
- Pipe connections can be done on the front side or on the side according to the installation environments.
- Be sure to let 0.2kgf/cm2 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.
Pipe Knock
Out for
Liquid/Gas pipes
Regulator
Refrigerant Pipe
Right
Side Pipe
Draw Out
Nitrogen
Direction
Taping
Left Side
Pipe Draw
Out
Valve
Nitrogen
Method of drawing out pipes on the bottom side
- Drawing out common pipe through side panel
Front Pipe Draw Out
Liquid pipe
Gas pipe
Preparation Work
- Use Knock Outs of Base Pan of the outdoor unit for Left/Right or
Bottom pipe drawing outs.
Removal Area for Liquid/Gas pipe
bottom side connections.
! 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
Liquid pipe
Gas pipe
Leakage Prevention Cap
Refrigerant Charging Port
Remove only liquid/gas pipe Knock out
ENGLISH
PIPE CONNECTIONS BETWEEN
INDOOR AND OUTDOOR UNIT
12
Header Method
1 Outdoor Units
Y branch method
Indoor
Unit
Ⓐ : Outdoor Unit
Ⓑ : 1st branch (Y branch)
Ⓒ : Indoor Units
H 110m
L150m (200 m : Conditional application)*
l 40m (90 m : Conditional application)*
ODU Capacity
Master ≥ Slave 1 ≥Slave 2 ≥Slave 3
Slave3
Slave2
Slave1
10m or
less
Slave3
Slave2
Slave1
Master
Master
L200m
H 110m
Ⓐ : 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
l 40m
h 40m
h 40m
Pipe Connection Method between outdoor
unit/indoor unit
h * : See Table 4
Combination of Y
branch/header Method
Slave2
Slave3
H1
L2
H 110m
L3
L150m (200 m : Conditional application)*
l 40m (90 m : Conditional application)*
h 40m
Ⓐ : Outdoor Unit
Ⓑ : 1st branch (Y branch)
Ⓒ : Y branch
Ⓓ : Indoor Unit
Ⓔ : Header
Ⓕ : Sealed piping
Slave1
Master
-
.
Indoor
Unit
/
L1
1st branch
h * : See Table 4
l 40m
Refrigerant pipe diameter from outdoor unit to first branch
Header Method
Ⓐ : Outdoor Unit
Ⓑ : 1st branch
Ⓒ : Indoor Units
Ⓓ : Sealed piping
Ⓔ : Header
h 40m
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)
L200m
l 40m
H 110m
h 40m
Series Outdoor Units (2 Units ~ 4 Units)
Y branch method
Slave2
Slave1
10m or
less
Indoor
Unit
Slave2
Slave1
Master
Master
h 40m
h * : See Table 4
ODU Capacity
Master ≥ Slave 1 ≥Slave 2 ≥Slave 3
Slave3
Slave2
Slave1
10m or
less
Slave2
Slave1
Master
Max length from first branch to
each outdoor unit (L1, L2, L3)
Combination of Y Header
branch/header
Method
Method
Longest A+B+C+D+e≤150 m A+B+b≤150 m
A+C+e≤150 m A+f≤200 m
pipe
(200 m: Conditional (200 m: Conditional
application)*
length(L)
application)*
Max pipe Outdoor Unit
length
175 m
175 m
↔
Equivalent
(225 m: Conditional (225 m: Conditional 225 m
Indoor Unit pipe length
application)*
application)*
Total pipe
1,000 m
1,000 m
1,000 m
length
Outdoor Unit Difference in
Max
110 m
110 m
110 m
difference ↔ Indoor Unit height(H)
in height
Indoor Unit Difference in
40 m
40 m
40 m
↔ Indoor Unit height(h)
Master
H 110m
Longest pipe
length after
1st branch
h * : See Table 4
Less than 10m
(equivalent length of piping 13m)
Y branch
Method
l 40m (90 m : Conditional application)*
Slave3
5m
(Table 1) Limit Pipe length
L150m (200 m : Conditional application)*
Combination of Y branch/
header Method
Ⓐ : 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
Slave3
L150m (200 m : Conditional application)*
l 40m (90 m : Conditional application)*
h 40m
Ⓐ : 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
Level Difference
(Outdoor unit ↔ Outdoor unit)
ODU Capacity
Master ≥ Slave 1 ≥Slave 2 ≥Slave 3
Slave3
H 110m
ENGLISH
Refrigerant piping system
Pipe
length(l)
40 m
40 m
(90 m: Conditional (90 m: Conditional apapplication)*
plication)*
h * : See Table 4
! WARNING
Increased Pipe Diameter(table 2)
- When pipe length is 90m or more from ODU to 1st branch
- When level difference is 50m or more
40 m
13
Upward
Outdoor unit
total capacity
HP
8
10
12 ~ 14
16
18 ~ 22
24
26 ~ 34
36 ~ 60
62 ~ 64
66 ~ 80
Increased Pipe Diameter
Standard Pipe
Diameter
Liquid pipe
[mm(inch)]
Ø 9.52(3/8)
Ø 9.52(3/8)
Ø 12.7(1/2)
Ø 12.7(1/2)
Ø 15.88(5/8)
Ø 15.88(5/8)
Ø 19.05(3/4)
Ø 19.05(3/4)
Ø 22.2(7/8)
Ø 22.2(7/8)
When equivalent pipe length is 90m
or more from ODU to farthest IDU
Gas pipe
[mm(inch)]
Ø 19.05(3/4)
Ø 22.2(7/8)
Ø 28.58(1-1/8)
Ø 28.58(1-1/8)
Ø 28.58(1-1/8)
Ø 34.9(1-3/8)
Ø 34.9(1-3/8)
Ø 41.3(1-5/8)
Ø 44.5(1-3/4)
Ø 53.98(2-1/8)
Liquid pipe
[mm(inch)]
Ø 12.7(1/2)
Ø 12.7(1/2)
Ø 15.88(5/8)
Ø 15.88(5/8)
Ø 19.05(3/4)
Ø 19.05(3/4)
Ø 22.2(7/8)
Ø 22.2(7/8)
Ø 25.4(1)
Ø 25.4(1)
Gas pipe
[mm(inch)]
Ø 22.2(7/8)
Ø 25.4(1)
not increased
Ø 31.8(1-1/4)
Ø 31.8(1-1/4)
not increased
Ø 38.1(1-1/2)
not increased
Ø 53.98(2-1/8)
not increased
When level difference is
50m or more
Liquid pipe
[mm(inch)]
Ø 12.7(1/2)
Ø 12.7(1/2)
Ø 15.88(5/8)
Ø 15.88(5/8)
Ø 19.05(3/4)
Ø 19.05(3/4)
Ø 22.2(7/8)
Ø 22.2(7/8)
Ø 25.4(1)
Ø 25.4(1)
Gas pipe
[mm(inch)]
not increased
not increased
not increased
not increased
not increased
not increased
not increased
not increased
not increased
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
Diameter of pipes between first branch and the
last branch should be in1
creased by one step, except pipe diameter B,C,D
is same as Diameter A
40 m < B+C+D+e
90 m ’ B, C, D
Change a diameter
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
2
Ø6.35 ’ Ø9.52,
Ø12.7 ’ Ø15.88,
Ø19.05’ Ø22.2,
Ø25.4 ’ Ø28.58,
Ø31.8 ’ Ø34.9,
Ø9.52 ’ Ø12.7,
Ø15.88 ’ Ø19.05,
Ø22.2 ’ Ø25.4,
Ø28.58 ’ Ø31.8,
Ø34.9 ’ Ø38.1
Indoor
Unit
H 110m
L
(A+B+C+D+e)(A+a) ≤ 40 m
Pipe length after header branching (a~f)
It is recommended that difference in length of the pipes connected to the Indoor Units is minimized. Performance difference
between Indoor Units may occur.
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
24HP(67.2 kW) outdoor unit.
1) Outdoor unit main pipe diameter A : Ø34.9(Gas pipe),
Ø15.88(liquid pipe)
2) Pipe diameter B after first branch according to 120% indoor
unit ombination(80.6kW) : Ø34.9(gas pipe), Ø19.05(liquid
pipe)
Therefore, pipe diameter B connected after first branch
would be Ø34.9(gas pipe) / Ø15.88(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 (61.6 kW)
outdoor unit to 130% of its system capacity (80.1 kW) and
branching 7k (2.2kW) indoor unit at the 1st branch.
1) Main pipe diameter(22 HP outdoor unit): Ø28.58(gas pipe),
Ø15.88(Liquid pipe)
2) Pipe diameter between 1st and 2nd branch (77.9kW indoor
units) :
Ø34.9(Gas pipe), Ø19.05(Liquid pipe) in conformity with
downward indoor units.
Since the main pipe diameter of 22HP outdoor unit is
Ø28.58(gas pipe), Ø15.88(Liquid pipe) is used as the main
pipe and the connection pipe between 1st and 2nd branch.
Indoor Unit Connection
Length of pipe from each
3 indoor unit to the closest a,b,c,d,e ≤ 40 m
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
! WARNING
Indoor Unit connecting pipe from branch (a,b,c,d,e,f)
Indoor Unit capacity
[kW(Btu/h)]
Liquid pipe
[mm(inch)]
Gas pipe [mm(inch)]
l
h 40m
! 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(Gas pipe),
Ø15.88(liquid pipe)
2) Pipe diameter B after first branch according to 120% indoor
unit ombination(80.6kW) : Ø34.9(gas pipe), Ø19.05(liquid pipe)
Therefore, pipe diameter B connected after first branch
would be Ø34.9(gas pipe) / Ø15.88(liquid pipe) which is
same with main pipe diameter.
≤ 5.6(19,100)
< 16.0(54,600)
< 22.4(76,400)
< 28.0(95,900)
Ø6.35(1/4)
Ø9.52(3/8)
Ø9.52(3/8)
Ø9.52(3/8)
Ø12.7(1/2)
Ø15.88(5/8)
Ø19.05(3/4)
Ø22.2(7/8)
! CAUTION
• Bending radius should be
at least twice the diameter
of the pipe.
• Bend pipe after 500 mm or
more from branch(or
header).
Do not bend U type.
It may cause Performance
unsatisfactory or noise.
• If want U type, bending R
is more than 200 mm.
500mm or more
500mm or more
ENGLISH
(Table 2) Refrigerant pipe diameter from outdoor unit to first branch. (A)
14
(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 10m or
less
Toward indoor unit
Pipe inclination (2° or more)
Toward indoor unit
(Example 3)
Pipes between outdoor units
are 2m or less
Toward indoor unit
Toward indoor unit
2m or less
Pipes between outdoor units
are 2m or longer
- Apply Oil Trap as shown below when the length of the pipe between
the outdoor units is more than 2m. Otherwise, the unit may not operate properly.
Oil Trap
0.2m or more
2m or less
2m or longer
(Example 1)
Oil Trap
2m or less
2m or longer
Oil Trap
2m or less
2m or longer
- If the distance between the outdoor units becomes more than 2m,
apply Oil Traps between the gas pipes.
- If the outdoor unit is located lower than the main pipe, apply Oil Trap.
2m
Toward indoor unit
(Example 2)
0.2m
ENGLISH
Pipe Connection Method/Precautions for
Series connections between Outdoor units
Oil Trap
Examples of Wrong Pipe Connections
Toward indoor unit
2m
2m
If the main pipe is
higher than the
outdoor units, oil is
accumulated in the
outdoor unit.
Oil Trap
- 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.
(Example 1)
If there are differences in the height
between the outdoor units, oil is
accumulated in the lower outdoor unit.
Toward indoor unit
Toward indoor unit
(Example 2)
h
Toward indoor unit
15
• Regulation for refrigerant leakage
: the amount of refrigerant leakage should satisfy the following
equation for human safety.
Total amount of refrigerant in the system
Oil Trap
h
≤0.44 (kg / m3)
0.2m
h
Volume of the room at which Indoor Unit of
the least capacity is installed
Toward indoor unit
Toward indoor unit
The amount of Refrigerant
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
x 0.480(kg/m)
+
Total liquid pipe : Ø22.2 mm
x 0.354(kg/m)
+
Total liquid pipe : Ø19.05 mm
x 0.266(kg/m)
+
Total liquid pipe : Ø15.88 mm
x 0.173(kg/m)
+
Total liquid pipe : Ø12.7 mm
x 0.118(kg/m)
+
Total liquid pipe : Ø9.52 mm
x 0.061(kg/m)
+
Total liquid pipe : Ø6.35 mm
x 0.022(kg/m)
CF value of indoor unit
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 2m 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
Refrigerant charging
Ⓐ Manifold Gauge
Ⓑ Low pressure side Handle
Ⓒ High pressure side Handle
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 × 1 + 0.26 × 2 + 0.24 × 4 = 2.12 kg
Liquid pipe
Attach the additional refrigerant table of IDU.
Gas pipe
! WARNING
• Pipe to be vacuumed : 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.
! CAUTION
Use only 2-series of indoor unit. Ex) ARNU***2
Do not connect Hydrokit with Multi V IV Models.
ENGLISH
! WARNING
(Example 3)
16
ENGLISH
Distribution Method
Branch pipe Fitting
Horizontal Distribution
Y branch
Slave
Master
B
A
Slave
2nd
1st
3rd main pipe distribution
Master
Ⓐ To Branch Piping or Indoor Unit
Ⓑ To Outdoor Unit
• Ensure that the branch pipes are attached horizontally or vertically
(see the diagram below.)
Facing
downwards
Horizontal
plane
Slave
Master
1st
2nd
Facing
upwards
Within +/- 10°
3rd
A
Viewed from point A
in direction of arrow
1st
2nd
3rd
1st
Main pipe
Distribution
Within ±3°
3rd
Main pipe
Distribution
Vertical Distribution
Within ±3°
• 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.
- Ensure that the branch pipes are attached vertically.
Tape
(field supply)
Slave
Master
Liquid and gas
pipe joints
Insulator
(included with kit)
Insulator for
field piping
Header
A
B
Slave
Master
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.
The others
Slave
Master
• 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
Slave
Master
• Fit branch pipe lie in a horizontal plane.
Horizontal plane
Header
View from point B in the direction of the arrow
17
Header
[unit:mm]
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
120
120
ID12.7
ID12.7
4 branch
ARBL054
ID6.35
ID6.35
ID15.88
120
ID15.88
ID9.52
150
ID9.52
ID15.88
ID19.05
ID15.88
ID19.05
ID12.7
ID9.52
ID12.7
ID9.52
540
540
120
• Joints between branch and pipe should be sealed with the tape included in each kit.
7 branch
ARBL057
150
120
120
ID12.7
ID6.35
ID12.7
ID15.88
ID15.88
120
ID9.52
150
ID15.88
ID19.05
120 150
ID9.52
ID12.7
Tape
400
360
160
120
ID15.88
ID12.7
4 branch
ARBL104
Insulator
ID6.35
ID19.05
120
ID15.88
Insulator of field pipe
Insulator for cap pipe
150
120
ID9.52
700
120
160
ID6.35
ID15.88
7 branch
ARBL107
ID6.35
ID12.7
ID19.05
ID15.88
Tape
120
150
ID9.52
ID9.52
ID12.7
ID22.2
760
ID9.52
160
ID15.88
Y branch pipe
[unit:mm]
Gas pipe
ID15.88
ID12.7
ID12.7
ID19.05
ID15.88
ID28.58
Models
ID25.4
120
150
ID19.05
ID15.88
ID22.2
ID28.58
150
ID22.2
700
775
I.D12.7
I.D6.35
I.D.6.35 I.D9.52
I.D15.88
182
I.D9.52
I.D15.88
I.D12.7
74
I.D.6.35
I.D.9.52
74
10 branch
ARBL2010
ID12.7
1
O.D15.88
ID6.35
ID6.35
ID19.05
ID15.88
281
292
281
292
107
60*9=540
ID15.88
1
I.D19.05
ID25.4
120
Liquid pipe
I.D12.7
I.D15.88
ARBLN
01621
150
120
760
160
10 branch
ARBL1010
150
ID9.52
ID12.7
580
ID28.58 ID25.4
Cap pipe
ID9.52
ID22.2
ID28.58 ID25.4
• Any cap pipe should be insulated using the insulator provided with
each kit and then taped as described above.
ID6.35
ID31.8
ID34.9
120
150
ID9.52
120
ID9.52
ID28.58
ID15.88
150
ID19.05
O.D9.52
I.D12.7
70
70
70
I.D22.2
I.D19.05
I.D15.88
I.D19.05 I.D12.7
I.D12.7
2
1
I.D9.52
I.D9.52
I.D6.35
Leak Test and Vacuum drying
I.D19.05
83
I.D15.88
I.D12.7
I.D25.4
ARBLN
03321
390
413
I.D28.58 O.D25.4
O.D19.0 5 I.D22.2
74
321
332
I.D22.2
O.D19.0 5
1
70
I.D12.7
3
3
I.D12.7
I.D6.35
I.D9.52
I.D25.4
2
80
11 0
I D1905
I.D19.05
I.D28.58
I.D22.2
1
I.D31.8
I.D19.05
ARBLN
07121
I.D19.05
I.D15.88
2
I.D15.88
I.D12.7
376
404
I.D28.58 I.D31.8
I.D34.9 O.D31. 8
O.D19.0 5 I.D22.2
1
120
I.D28.58
O.D1 2.7
83
3
I.D9.52 I.D6.35
O.D12. 7
3
90
I.D12.7
2
I.D12.7
I.D15.88 I.D19.05
I.D19.05
I.D9.52
2
120
11 0
70
120
I.D38.1
I.D41.3
I.D34.9
I.D28.58
I.D15.88
2
I.D34.9
I.D19.05
I.D22.2
I.D19.05
I.D15.88
2
Slave 1 outdoor unit
Master outdoor unit
1
I.D28.58
I.D34.9
I.D22.2
I.D38.1
I.D15.88
I.D19.05
I.D12.7 96
I.D22.2
125
Close
O.D34.9
I.D38.1
I.D41.3
3
130
I.D22.2
90
O.D28.58
I.D12.7
3
I.D.44.48
I.D41.3
I.D9.52
O.D12. 7
I.D6.35
Nitrogen gas
cylinder
Close
Close
3
11 0
80
I.D.25.4
I.D22.2
I.D.22.2
I.D.19.05
Liquid side
2
I.D.44.48
I.D38.1 134
420
490
Indoor unit
I.D.25.4
I.D.22.2
I.D.19.05 96
3
I.D.53.98
I.D.34.9 I.D31.8
I.D.28.58
O.D.44.48
O.D.38.1
2 3
X2 2 3
X2
O.D.28.58
3
100
I.D12.7
I.D.19.05
3
70
3
11 0
I.D25.4
2
175
O.D19.0 5
I.D22.2
I.D.44.48
I.D41.3
I.D38.1
I.D.53.98
1
3
O.D15.88
I.D12.7
I.D9.52
2
I.D19.05
2
O.D15.88
O.D15.88
Gas pipe
2
120
Close
Liquide pipe
I.D19.05 I.D15.88 O.D38.1 I.D41. 3
3
O.D22.2
3
416
444
3
Gas pipe
471
517
Liquide pipe
ARBLN
14521
ARBLN
23220
I.D15.88
371
394
3
90
120
96
I.D15.88
3
2
O.D22.2
I.D12.7
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/low pressure common 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.
O.D.22.2
120
346
379
I.D.25.4
I.D.22.2
115
I.D.15.88
3
Gas side
I.D.15.88
O.D.19.05
I.D.12.7
X2
2 3
110
I.D9.52
O.D12.7
I.D6.35
3
110
ENGLISH
• Header should be insulated with the insulator in each kit.
18
! 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.
!
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.
!
NOTE
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 0.1 kg/cm2 (0.01 MPa) for
each 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
(3.8 MPa) is 27 °C
24 hour later: 3.73 MPa, 20°C
In this case the pressure drop of 0.07 is because of temperature drop And hence there is no leakage in pipe occurred.
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
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.
! CAUTION
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.
Vacuum Mode
This function is used for creating vacuum in the system after compressor replacement, ODU parts replacement or IDU addition/replacement.
Vacuum mode setting method
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
(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. 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(vacuum break) with nitrogen gas and then evacuate it again
with the vacuum pump for 1hr to -100.7kPa(vacuum drying). If the
system cannot be evacuated to -100.7kPa 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.
Slave 1 outdoor unit
7-Segment
SW04C ( X : cancel)
SW03C ( ȯ : forward)
SW02C (ȭ : backward
SW01C (Ɨ : confirm)
SW01D (reset)
Master unit PCB DIP switch on : No.5
Select the mode using ‘▶’, ‘◀’ Button :
“SVC” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Se3” Push the ‘●’ button
Start the vacuum mode : “VACC”
ODU V/V open
ODU EEV open
IDU EEV open
Close
Close
Vacuum mode off method
Gas pipe
Gas pipe
Liquide pipe
Close
Close
Scale
Use a graviometer. (One that
can measure down to 0.1kg). If
you are unable to prepare such a
high-precision gravimeter you
may use a charge cylinder.
DIP SWITCH
Master outdoor unit
Vacuum
pump
Liquide pipe
ENGLISH
! WARNING
Dip switch off and push the reset button on Master unit PCB
Liquid side
Indoor unit
Gas side
! CAUTION
ODU operation stops during vacuum mode. Compressor can't
operate.
19
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
Ⓐ 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.
B
F
A
C
D
E
Ⓐ Liquid pipe
Ⓑ Gas pipe
ⓒ Power lines
ⓓ Finishing tape
ⓔ Insulating material
ⓕ Communication lines
Penetrations
Inner wall (concealed)
Outer wall
C
A
Outer wall (exposed)
D
E
B
A
B
B
I
Floor (fireproofing)
Penetrating portion on fire
limit and boundary wall
D
Roof pipe shaft
I
F
J
G
D
B
G
H
B
A
1m
1m
Ⓐ Sleeve
Ⓑ Heat insulating material
Ⓒ Lagging
Ⓓ Caulking material
Ⓔ Band
Ⓕ Waterproofing layer
Ⓖ Sleeve with edge
Ⓗ Lagging material
Ⓘ Mortar or other incombustible caulking
Ⓙ Incombustible heat insulation material
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.)
ELECTRICAL WIRING
Caution
- Follow ordinance of your governmental organization for technical
standard related to electrical equipment, wiring regulations and guidance of each electric power company.
• Be sure to fully insulate connecting portion.
A
! WARNING
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.
Ⓐ These parts are not insulated.
Good example
C
Power lines
D
Communication lines
D
A
B
E
Separation
Ⓐ Liquid pipe
Ⓑ Gas pipe
ⓒ Power lines
ⓓ Insulating material
ⓔ Communication lines
- 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.
- Never connect the main power source to terminal block of communication cable. If connected, electrical parts will be burnt out.
- Use 2-core shield cable 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.
ENGLISH
Thermal insulation of refrigerant piping
20
ENGLISH
! CAUTION
Outdoor Unit
Indoor
Unit
Indoor
Unit
Remote
control
Remote
control
Outdoor Unit
Indoor
Unit
Indoor
Unit
Remote
control
• Use the 2-core shield cables 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.
Remote
control
Precautions when laying power wiring
2-Core Shield Cable
Use round pressure terminals for connections to the power terminal
block.
Outdoor Unit
Round pressure terminal
Indoor
Unit
Power cable
Indoor
Unit
Remote
control
Remote
control
Outdoor Unit
Indoor
Unit
Indoor
Unit
Remote
control
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.
Remote
control
Multi-Core Cable
- 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.
Outdoor Unit
Master
Slave1
Slave2
Indoor
Unit
Indoor
Unit
Remote
controller
Remote
controller
Outdoor Unit
Master
Slave1
Indoor
Unit
Remote
controller
Control box and connecting position of wiring
Remote
controller
2-Core Shield Cable
Outdoor Unit
Slave1
When the 400 volt power supply is applied to “N” phase by mistake,
check damaged parts in control box and replace them.
Slave2
Indoor
Unit
Master
! CAUTION
Slave2
Indoor
Unit
Indoor
Unit
Remote
controller
- 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.
Remote
controller
Outdoor Unit
Master
Slave1
Slave2
Indoor
Unit
Remote
controller
Indoor
Unit
Remote
controller
Multi-Core Cable
Front Panel
21
! CAUTION
The temperature sensor for outdoor air should not be exposed to
direct sunlight.
- Provide an appropriate cover to intercept direct sunlight.
[Heat pump]
Wiring of main power supply and equipment
capacity
UX3
UX2
If apparatus is not properly earthed then there is always a risk of
electric shocks, the earthing of the apparatus must be carried out by
a qualified person.
- 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.
Main PCB
Noise Filter
External PCB
Take care of the
phase sequence of
3-phase 4-wire
power system
The thickness of Minimum wire (mm2)
Leakage circuit breaker
Main power
Branch wire Ground wire (4P ELCB)
wire
Communication and Power Cables
Communication cable
- Types : shielding cable
- Cross section : 1.0~1.5mm2
- Maximum allowable temperature: 60°C
- Maximum allowable cable length: under 1000m
Remote control cable
- Types : 3-core cable
1 Unit
2.5~6
-
2.5
Below 30~50A
100mA 0.1sec
2 Unit
10~16
-
2.5
Below 75~100A
100mA 0.1sec
3 Unit
25~35
-
4
Below 125~150A
100mA 0.1sec
4 Unit
70
-
6
Below 175~200A
100mA 0.1sec
Central control cable
Product type
ACP&AC Manager
AC Smart
Simple central controller
Cable type
2-core cable (Shielding cable)
2-core cable (Shielding cable)
4-core cable (Shielding cable)
Diameter
1.0~1.5mm2
1.0~1.5mm2
1.0~1.5mm2
Separation of communication and power cables
- If communication and power cables are run 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
300mm
500mm
1000mm
1500mm
NOTE
• The figures are based on assumed length of parallel cabling up
to 100m. For length in excess of 100m 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.
Ground wire
1 The power wire Between the master outdoor unit and slave1 outdoor unit - minimum : 6 mm2
2 The power wire Between the slave1 outdoor unit and slave2 outdoor unit - minimum : 4 mm2
3 The power wire Between the slave2 outdoor unit and slave3 outdoor unit - minimum : 2.5 mm2
h The above standard is CV wire standard.
h Please use the 3-phase 4-wire 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.
! 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.
ENGLISH
! WARNING
22
ENGLISH
Point for attention regarding quality of the public electric 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)
ARUN080LTE4
-
3921
ARUN100LTE4
-
6415
ARUN120LTE4
-
6415
ARUN140LTE4
-
4964
ARUN160LTE4
-
4964
ARUN180LTE4
-
6994
ARUN200LTE4
-
6994
(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 low-voltage
systems with input current >16 A and ≤75 A per phase.
Field Wiring
[Heat Pump]
Between Indoor and Master Outdoor unit
Single outdoor unit
SODU. B SODU. A
Outdoor
Power supply
(3Ø 4wires)
Frequency
[Outdoor Unit]
(Main Switch)
R S T N
60Hz
50Hz
Voltage range(V)
Outdoor
Indoor
380V
220V
380-415V 220-240V
3
IDU. B
IDU. A
4
CEN. B
3
CEN. A
DRY1
DRY2
4
GND
3
12V
Master
Outdoor Unit
The GND terminal at the
main PCB is a ‘-’ terminal
for day contact, it is not
the point to make ground
connection.
4
Switch
Fuse
Indoor
Power supply
(1Ø 2wires)
L
N
Power cable
(4 Wires Cable)
Power cable
(2 Wires Cable)
Communication cable
(2 Wires Cable)
Pull Box
(Installer option)
Pull Box
(Installer option)
Pull Box
(Installer option)
Pull Box
(Installer option)
Series outdoor units
When the power source is connected
In series between the units.
Frequency
60Hz
50Hz
Outdoor
Power supply
(3Ø 4wires)
[Master]
[Slave1]
Voltage range(V)
Outdoor
Indoor
380V
220V
380-415V 220-240V
[Slave2]
[Slave3]
(Main Switch)
R S T N
Switch
Power cable
(2 Wires Cable)
Power cable
(2 Wires Cable)
Power cable
(2 Wires Cable)
Power cable
(2 Wires Cable)
Indoor
Power supply
(1Ø 2wires)
L
Fuse
N
Power cable
(4 Wires Cable)
Communication cable
(3 Wires Cable)
Power cable
(2 Wires Cable)
[Indoor Units]
! 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.
Communication cable
(2 Wires Cable)
Pull Box
(Installer option)
Power cable
(2 Wires Cable)
Pull Box
(Installer option)
Power cable
(2 Wires Cable)
Pull Box
(Installer option)
Power cable
(2 Wires Cable)
Pull Box
(Installer option)
Power cable
(2 Wires Cable)
Communication cable
(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. (Heat Pump : 62 Hp)
23
Outdoor
Power supply
(3Ø 4wires)
[Master]
[Slave1]
[Slave2]
[Slave3]
(Main Switch)
R S T N
Switch
R S T N
R S T N
Switch
Fuse
Switch
Fuse
R S T N
Switch
Fuse
Fuse
Indoor
Power supply
(1Ø 2wires)
L
Example) Connection of transmission wire
[BUS type]
- Connection of communication
cable must be installed like
below figure between indoor
unit to outdoor unit.
N
[STAR type]
- Abnormal operation can be
caused by communication defect, when connection of communication cable is installed like
below figure(STAR type).
Power cable
(2 Wires Cable)
Communication cable
(2 Wires Cable)
Power cable
(4 Wires Cable)
Pull Box
(Installer option)
Pull Box
(Installer option)
Power cable
(2 Wires Cable)
Frequency
60Hz
50Hz
Pull Box
(Installer option)
Power cable
(2 Wires Cable)
Pull Box
(Installer option)
Power cable
(2 Wires Cable)
Power cable
(2 Wires Cable)
Communication cable
(3 Wires Cable)
Voltage range(V)
Outdoor
Indoor
380V
220V
380-415V 220-240V
[Indoor Units]
Example) Connection of power and communication cable (UX2)
Left Side
Right Side
! 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.
Main power
terminal block
Main power
terminal block
Ground wire
Ground wire
Power/
Ground cable
Power/
Ground cable
Over
50mm gap
Over
50mm gap
Communication
cable
Communication
cable
Front Side 1
Front Side 2
Main power
terminal block
Main power
terminal block
Ground wire
[Heat Pump]
Between Indoor and Master Outdoor unit
SODU. B SODU. A
3
4
IDU. B
IDU. A
3
CEN. B
4
CEN. A
DRY1
DRY2
3
GND
4
12V
Master
Outdoor Unit
Ground wire
Power/
Ground cable
Over
50mm gap
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
Slave2
Outdoor Unit
Power/Ground cable
Communication cable
Main Power Connection
Communication Connection
Main power
terminal block
Insulation sleeves
attachments
Slave3
Outdoor Unit
ODU-IDU
Communication cable
ODU-ODU
Communication cable
Fix firmly not
to be displaced
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)
Communication
cable
Over
50mm gap
! 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.
Example) Connection of power and communication cable (UX3)
Left Side
Main power
terminal
werblock
Right Side
Main power
terminal block
Ground
e wire
Ground wire
Power/
Ground cable
Power/
Ground cable
Over
50mm gap
Communication
cable
Over
50mm gap
Communication
cable
ENGLISH
When the power source is supplied to Each outdoor unit individually.
e
e
24
ENGLISH
Front Side 1
Automatic Addressing
Front Side 2
The address of indoor units would be set by Automatic Addressing
Main power
terminal block
Main power
terminal block
Ground wire
Ground wire
Power/
Ground cable
Over
50mm gap
Communication cable
Power/Ground cable
Over
50mm gap
Main Power Connection
Communication
cable
Communication Connection
- 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 power
terminal block
Insulation sleeves
attachments
[Heat Pump (MAIN PCB)]
DIP-SWITCH 7 - Segment
ODU-IDU
Communication cable
ODU-ODU
Communication cable
Fix firmly not
to be displaced
SW04C ( : cancel)
! CAUTION
SW03C (ඖ: forward)
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 the setting of outdoor units
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.
SW02C (ඔ: backward)
SW01C ( ̻: confirm)
SW01D (reset)
! 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 is only possible on the master Unit.
• Automatic Addressing has to be performed after 3 minutes to improve communication.
The Procedure of Automatic Addressing
• Initial display order
Order
①
②
③
④
⑤
No
8~20
10~20
10~20
10~20
8~80
1
2
3
38
46
22
1
2
⑥
⑦
⑧
Power On
Mean
Master model capacity
Slave 1 model capacity
Slave 2 model capacity
Slave 3 model capacity
Total capacity
Cooling Only
Heat Pump
Heat Recovery
380V model
460V model
220V model
LTE4
LTS4
Waiting 3 minutes
Press RED Button for 5 sec.
(SW01C)
Automatic addressing start
7-segment LED
Don’t press RED Button
(SW01C)
7-segment LED
= 88
YES
①
②
③
④
⑤
⑥
⑦
⑧
18
16
14
14
62
2
38
1
Dip switch setting
• Automatic addressing setting end
Numbers of indoor unit connection set whose
addressing is completed are indicated for 30seconds
on 7-segment LED after completing setting
Waiting about 2~7 minutes
• Example) ARUN620LTE4
• Master Unit
= 88
OK
NO
Check the connections
of communication cable
Indoor address number is displayed on wired remote control or
indoor unit display window. It is not an error message, will
disappeared when on/off button is pressed on remote control
ex) Display of 01, 02, ..., 15 means connection of 15 indoor units
and Automatic addressing is completed normally.
• Slave Unit
Dip switch setting
ODU Setting
Slave 1
Setting the 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
Slave 2
SW04C ( : cancel)
SW03C (ඖ: forward)
SW02C (ඔ: backward)
Slave 3
SW01C ( ̻: confirm)
SW01D (reset)
25
Function
Content
Option
Display2
Cool & Heat
Selector
Value
Action
Display3 Content Display4 Implement Display5
Selected
oFF op1~
op2 the option
Static pressure compensation
Installation
Content
Selected
oFF op1~
op3 the option
-
Remarks
-
Change
Save in
the set Blank EEPROM
value
-
Change
the set Blank Save in
EEPROM
value
Night low
noise
Selected
oFF op1~o
p12 the option
-
-
Change
the set Blank Save in
EEPROM
value
Overall defrost
on
Selected
oFF the
option
-
-
Change
Save in
the set Blank EEPROM
value
ODU address
-
-
0~255
Selected
oFF op1~
op3 the option
-
-
Change
the set Blank Save in
EEPROM
value
IDU capacity
adjusting
on
Selected
oFF the
option
-
-
Change
the set Blank Save in
EEPROM
value
Target
pressure
adjusting
Selected
oFF op1~
op3 the option
-
-
Change
the set Blank Save in
EEPROM
value
Comfort
Operation
on
selected
oFF the
option
-
-
Change
the set Blank Save in
EEPROM
value
* Functions save in EEPROM will be kept continuously, though the
system power was reset.
Group Number setting
CEN.B
Master unit PCB DIP switch on : No.5
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
Function setting
Switch control
Switch(Phase) Switch(Bottom)
oFF
Right
Left
Not operate
Right
Right
Not operate
Left
Not operate
Function
op1(mode)
Cooling
Heating
Fan mode
op2(mode)
Cooling
Heating
Off
Right side
Switch (Phase)
Switch (Bottom)
! 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.
Outdoor Units (External PCB)
IDU.A
Mode setting method
Left side
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.
IDU.B
Cool & Heat selector
set Change
the the set Blank Save in
EEPROM
value value
Snow removal &
rapid defrost
SODU.B SODU.A
ENGLISH
Mode
Content Display1
CEN.A
DRY1
DRY2
GND
12V
Static pressure compensation mode
This function secures the air flow rate of ODU, in case static pressure
has been applied like using duct at fan discharge of ODU.
B(D)
A(C)
Static pressure compensation mode setting method
Example) Group number setting
1 F
Group Indoor unit
1st number indicate the group number
2nd number point out indoor unit number
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)
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
Select the Option using ‘▶’, ‘◀’ Button :
“op1~op3” Push the ‘●’ button
Start the Static pressure compensation mode :
Save the selected option value in EEPROM
FAN Maximum RPM of each step
Capacity
Max. RPM
Standard
op1
op2
op3
8~12 HP
730
760
780
800
14~20 HP
950
1020
1050
1130
26
ENGLISH
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.
Mode setting
- on: Operate overall defrost
- off: Operate partial defrost
Night low noise function setting method
! CAUTION
Master unit PCB DIP switch on : No.5
• Ask an authorized technician to setting a function.
* ARUN***LTS4 models operate only overall defrost function.
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Setting the ODU address
Select the Function using ‘▶’, ‘◀’ Button :
“Fn3” Push the ‘●’ button
Mode setting method
Master unit PCB DIP switch on : No.5
Select the Option using ‘▶’, ‘◀’ Button :
“op1~op12” Push the ‘●’ button
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Start the Night low noise function :
Save the selected option value in EEPROM
Select the Function using ‘▶’, ‘◀’ Button :
“Fn5” Push the ‘●’ button
Time Settings
Step
op1
op2
op3
op4
op5
op6
op7
op8
op9
op10
op11
op12
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
Select the Option using ‘▶’, ‘◀’ Button :
“0” ~ “255” Push the ‘●’ button
ODU address is set
! CAUTION
• Ask an authorized technician to setting a function.
• If use a function, first install a Central controller.
Noise
Snow removal & rapid defrost
Capacity
Heat Pump
Step
op1~op3, op10
op4~op6, op11
op7~op9, op12
8~12HP
14~20HP
Noise(dB)
55
52
49
! CAUTION
• Request installer to set the function during installation.
• If ODU RPM changes, cooling capacity may go down.
Overall defrost mode
59
56
53
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 :
“Fn6” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“oFF”,“op1” ~ “op3” Push the ‘●’ button
Mode setting method
Mode is set
Master unit PCB DIP switch on : No.5
Mode setting
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
Overall defrost mode is set
setting
Mode
oFF
Not setting
op1
Snow removal mode
op2
Rapid defrost mode
op3
Snow removal mode. + Rapid defrost mode.
! CAUTION
• Ask an authorized technician to setting a function.
• If do not use a function, set an off-mode.
27
Comfort 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 :
“Fn7” 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
IDU capacity adjusting is set
Comfort Operation mode is set
! CAUTION
! CAUTION
• Ask an authorized technician to setting a function.
* ARUN***LTS4 models operate only overall defrost function.
Target pressure adjusting
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
Select the Option using ‘▶’, ‘◀’ Button :
“HEAT” , “COOL” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“op1” ~ “op4” Push the ‘●’ button
Target pressure is set
Setting
Mode
Purpose
Heat
op1 Increase capacity
Cool
Condensing Evaporating
temperature temperature
variation
variation
Increase capacity
+2 °C
-3 °C
op2
Decrease power
consumption
Increase capacity
-2 °C
-1.5 °C
op3
Decrease power
consumption
Decrease power
consumption
-4 °C
+2.5 °C
op4
Decrease power
consumption
Decrease power
consumption
-6 °C
-4.5 °C
! CAUTION
• Ask an authorized technician to setting a function.
• If do not use a function, set an off-mode.
• Change a power consumption or capacity.
• Ask an authorized technician to setting a function.
* If do not use a function, set an off-mode.
ENGLISH
IDU capacity adjusting
28
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)
Repeat
Error No. of Unit
Error No. of Compressor
Error No.
* 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
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
7
-
Inlet Air temperature sensor of FAU
Air temperature sensor of indoor unit is open or short
2
1
*
Master Outdoor Unit Inverter Compressor IPM Fault
Master Outdoor Unit Inverter Compressor Drive IPM Fault
2
2
*
Inverter Board Input Over Current(RMS) of Master
Outdoor Unit
Master Outdoor Unit Inverter Board Input Current excess (RMS)
2
3
*
Master Outdoor Unit Inverter Compressor DC link
Low Voltage
DC charging is not performed at Master Outdoor Unit after starting relay turn on.
2
4
*
Master Outdoor Unit High Pressure Switch
System is turned off by Master Outdoor Unit high pressure switch.
2
5
*
Master Outdoor Unit Input Voltage High/ Low Voltage
Master Outdoor Unit input voltage is over 487V or below 270V
2
6
*
Master Outdoor Unit Inverter Compressor Start
Failure
The First Start Failure by Master Outdoor Unit Inverter Compressor Abnormality
2
9
*
Master Outdoor Unit Inverter Compressor Over
Current
Master Outdoor Unit Inverter Compressor Fault OR Drive Fault
3
2
*
Master Outdoor Unit Inverter Compressor1 High
Discharge Temperature
Master Outdoor Unit Inverter Compressor1 High Discharge Temperature
3
3
*
Master Outdoor Unit Inverter Compressor2 High
Discharge Temperature
Master Outdoor Unit Inverter Compressor2 High Discharge Temperature
3
4
*
High Pressure of Master Outdoor Unit
High Pressure of Master Outdoor Unit
29
Outdoor unit related error
Title
Cause of Error
3
5
*
Low Pressure of Master Outdoor Unit
Low Pressure of Master Outdoor Unit
3
6
*
Master Outdoor Unit Low Compression Ratio Limited
Master Outdoor Unit Low Compression Ratio Limited
4
0
*
Master Outdoor Unit Inverter Compressor CT Sensor Fault
Master Outdoor Unit Inverter Compressor CT Sensor open or
short
4
1
*
Master Outdoor Unit Inverter Compressor1 Discharge Temperature Sensor Fault
Master Outdoor Unit Inverter Compressor Discharge Temperature Sensor open or short
4
2
*
Master Outdoor Unit Low Pressure Sensor Fault
Master Outdoor Unit Low Pressure Sensor open or short
4
3
*
Master Outdoor Unit High Pressure Sensor Fault
Master Outdoor Unit High Pressure Sensor open or short
4
4
*
Master Outdoor Unit Air Temperature Sensor Fault
Master Outdoor Unit Air Temperature Sensor open or short
4
5
*
Master Outdoor Unit Heat Exchanger Temperature
Sensor (Front side) Fault
Master Outdoor Unit Heat Exchanger Temperature Sensor(Front
side) open or short
4
6
*
Master Outdoor Unit Suction Temperature Sensor
Fault
Master Outdoor Unit Suction Temperature Sensor open or short
4
7
*
Master Outdoor Unit Inverter Compressor2 Discharge Temperature Sensor Fault
Master Outdoor Unit Inverter Compressor2 Discharge Temperature Sensor open or short
4
9
*
Master Outdoor Unit Faulty IPM Temperature Sensor
Master Outdoor Unit IPM Temperature Sensor short/open
5
0
*
Omitting connection of R, S, T power of Master
Outdoor Unit
Omitting connection of Master 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 Master 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 Master Outdoor Unit
5
9
*
Mixing Installation of Sub Outdoor Unit ’ Wrong
combination of Outdoor units
Mixing Installation of Old Sub Outdoor Unit and New Slave Outdoor Unit ’
Installed combination mixed with old series model(Multi V III, II.)
6
0
*
Inverter PCB EEPROM Error of Master Outdoor Unit
Access Error of Inverter PCB of Master Outdoor Unit
6
2
*
Master Outdoor Unit Inverter Heatsink High Temperature
System is turned off by Master Outdoor Unit Inverter Heatsink High
Temperature
6
5
*
Master Outdoor Unit Inverter Heatsink Temperature Sensor Fault
Master Outdoor Unit Inverter Heatsink Temperature Sensor open
or short
6
7
*
Master Outdoor Unit Fan Lock
Restriction of Master Outdoor Unit
7
1
*
Converter CT Sensor Error of Master Outdoor Unit
Converter CT Sensor open or short of Master Outdoor Unit
7
5
*
Master Outdoor Unit Fan CT Sensor Error
Master Outdoor Unit Fan CT Sensor open or short
7
6
*
Master Outdoor Unit Fan DC Link High Voltage
Error
Master Outdoor Unit Fan DC Link High Voltage Error
7
7
*
Master Outdoor Unit Fan Over Current Error
Master Outdoor Unit Fan Current is over 5A
7
9
*
Master Outdoor Unit Fan Start Failure Error
Master Outdoor Unit Fan First Position Sensing Failure
8
6
*
Master Outdoor Unit Main PCB EEPROM Error
Communication Fail Between Master Outdoor Unit Main MICOM
and EEPROM or omitting EEPROM
8
7
*
Master Outdoor Unit Fan PCB EEPROM Error
Communication Fail Between Master Outdoor Unit Fan MICOM
and EEPROM or omitting EEPROM
ENGLISH
Display
30
Outdoor unit related error
ENGLISH
1
0
4
*
Communication Error Between Master Outdoor
Unit and Other Outdoor Unit
Failing to receive Slave Unit signal at main PCB of Master Outdoor Unit
1
0
5
*
Master Outdoor Unit Fan PCB Communication
Error
Failing to receive fan signal at main PCB of Master unit.
1
0
6
*
Master Outdoor Unit FAN IPM Fault Error
Instant Over Current at Master Outdoor Unit Fan IPM
1
0
7
*
Master Outdoor Unit Fan DC Link Low Voltage
Error
Master Outdoor Unit Fan DC Link Input Voltage is under 380V
1
1
3
*
Master Outdoor Unit Liquid pipe Temperature Sensor Error
Liquid pipe temperature sensor of Master Outdoor Unit is open
or short
1
1
4
*
Master Outdoor Unit Subcooling Inlet Temperature
Sensor Error
Master Outdoor Unit Subcooling Inlet Temperature Sensor Error
1
1
5
*
Master Outdoor Unit Subcooling Outlet Temperature Sensor Error
Master Outdoor Unit Subcooling Outlet Temperature Sensor
Error
1
1
6
*
Master Outdoor Unit Oil Level Sensor Error
Oil Level Sensor of Master Outdoor Unit is open or short
1
4
5
*
Master outdoor unit Main Board - External Board
communication Error
Master outdoor unit Main Board - External Board communication
Error
1
5
1
*
Failure of operation mode conversion at Master
Outdoor Unit
Failure of operation mode conversion at Master Outdoor Unit
1
5
3
*
Master Outdoor Unit Heat Exchanger Temperature
Sensor (upper part) Fault
Master Outdoor Unit Heat Exchanger Temperature Sensor (upper
part) Fault
1
5
4
*
Master Outdoor Unit Heat Exchanger Temperature
Sensor (lower part) Fault
Master Outdoor Unit Heat Exchanger Temperature Sensor(lower
part) open or short
1
8
2
*
Master outdoor unit External Board Main-Sub
Micom communication Error
Master Outdoor Unit Main Board Main-Sub Micom communication failed
1
9
3
*
Master Outdoor Unit Fan Heatsink High Temperature
System is turned off by Master Outdoor Unit Fan Heatsink High
Temperature
1
9
4
*
Master Outdoor Unit Fan Heatsink Temperature
Sensor Fault
Master Outdoor Unit Fan Heatsink Temperature Sensor open or
short
CAUTION FOR REFRIGERANT LEAK
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.
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 limiting concentration even
if the refrigerant gas leaks in the room.
Checking procedure of limiting concentration
Check limiting concentration along following steps and take appropriate measure depending on the situation.
Calculate amount of all the replenished refrigerant (kg) per each refrigerant system.
Amount of replenished
refrigerant per one outdoor +
unit system
Amount of additional = Total amount of replenished
replenished refrigerant refrigerant in refrigerant
facility (kg)
Amount of replenished
refrigerant at factory shipment
Amount of additionally
replenished refrigerant
depending on piping
length or piping
diameter at customer
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.
Limiting concentration
Limiting concentration is the limit of Freon gas concentration
where immediate measures can be taken without hurting human
body when refrigerant leaks in the air. The limiting concentration
shall be described in the unit of kg/m3 (Freon gas weight per unit
air volume) for facilitating calculation.
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
3
Limiting concentration: 0.44kg/m (R410A)
Outdoor unit
Outdoor unit
Outdoor unit
(No.1 system)
Flow of
refrigerant
Indoor unit
Indoor unit
Indoor unit
Opening
Room where refrigerant leaks
(Refrigerant of the whole No.1
system flows out.)
Partition
In the case of opening
without door , or 0.15
% or more openings
(to floor space) both
above and below door)
31
Outdoor unit
INSTALLATION GUIDE AT THE
SEASIDE
! CAUTION
Indoor unit
Smallest
room
Calculate refrigerant concentration
Total amount of replenishedrefrigerant
in refrigerant facility (kg)
= Refrigerant concentration(kg/m3)
Capacity of smallest room
whereindoor unit is installed (m3)
• 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
performance.
• If outdoor unit is installed close to the seaside, it should avoid
direct exposure to the sea wind. Otherwise it needs additional
anticorrosion treatment on the heat exchanger.
(R410A)
- In case the result of calculation exceeds the limiting concentration, perform
the same calculations by shifting to the second smallest, and the third smallest rooms until at last the result is below the limiting concentration.
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 opening to floor space both above and below
door, or provide opening without door.
• Countermeasure 2
Provide gas leak alarm linked with mechanical ventilator.
Reducing the outdoor refrigerant qty.
Selecting the location(Outdoor Unit)
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.
Sea wind
Gas leak alarm
Countermeasure 2
Mechanical ventilator
Sea wind
Indoor unit
In case, to install the outdoor unit on the seaside, set up a windbreak
not to be exposed to the sea wind.
Windbreak
Countermeasure 1 Opening effective to ventilation
Sea wind
Pay a special attention to the place, such as a basement, etc.
where refrigerant can stay, since refrigerant is heavier than air.
- 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 keep more than 70 cm of space between outdoor unit
and the windbreak for easy air flow.
Select a well-drained place.
• Periodic ( more than once/year ) cleaning of the dust or salt
particles stuck on the heat exchanger by using water
ENGLISH
- With partition and without opening which serve as passage of air to
adjoining room
32
ENGLISH
Model Designation
Product information
• Product Name : Air conditioner
• Model Name :
Product Sales Name
Model Factory Name
ARUx***LTy4 series
x = N, B (Heat pump), V (Cooling only)
y = S (Basic function),
E (Additional function related to performance)
*** = Numeric; (Cooling capacity)
• Additional information : Serial number is refer to the bar code on the product.
Airborne Noise Emission
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.
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.
[Representative] LG Electronics Inc. EU Representative
Krijgsman 1, 1186 DM Amstelveen, The Netherlands
[Manufacturer] LG Electronics Inc. Changwon 2nd factory
84, Wanam-ro, Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA
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