LG ARUB100BTE4 INSTALLATION MANUAL

P/NO : MFL68065501

www.lg.com

INSTALLATION MANUAL

AIR CONDITIONER

• Please read this installation manual completely before installing the product.

• Installation work must be performed in accordance with the national
wiring standards by authorized personnel only.

• Please retain this installation manual for future reference after reading
it thoroughly.your set and retain it for future reference.

ENGLISH

ESPAÑOL

PORTUGUESE

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:

IMPORTANT SAFETY INSTRUC­TIONS

READ ALL INSTRUCTIONS BEFORE USING THE AP­PLIANCE.

Always comply with the following precautions to avoid dangerous situ­ations and ensure peak performance of your product

WARNING

It can result in serious injury or death when the directions are ignored

CAUTION

It can result in minor injury or product damage when the directions are
ignored

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.

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 per-

formed 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.

• Securely install the cover of control box and the panel.

- If the cover and panel are not installed securely, dust or water may

enter the outdoor unit and fire or electric shock may result.

• If the air conditioner is installed in a small room, measures must be
taken to prevent the refrigerant concentration from exceeding the safety
limit when the refrigerant leaks.

- Consult the dealer regarding the appropriate measures to prevent the

safety limit from being exceeded. Should the refrigerant leak and cause
the safety limit to be exceeded, harzards due to lack of oxygen in the
room could result.

Operation

• Do not damage or use an unspecified power cord.

- There is risk of fire, electric shock, explosion, or injury.

• Use a dedicated outlet for this appliance.

- There is risk of fire or electrical shock.

• Be cautious that water could not enter the product.

- There is risk of fire, electric shock, or product damage.

• Do not touch the power switch with wet hands.

- There is risk of fire, electric shock, explosion, or injury.

• When the product is soaked (flooded or submerged), contact an Authorized
Service Center.

- There is risk of fire or electric shock.

• 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.

!

!

!

• 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 :

3

CAUTION

Installation

• Always check for gas (refrigerant) leakage after installation or repair of product.

- Low refrigerant levels may cause failure of product.

• Do not install the product where the noise or hot air from the outdoor unit could
damage the neighborhoods.

- It may cause a problem for your neighbors.

• Keep level even when installing the product.

- To avoid vibration or water leakage.

• Do not install the unit where combustible gas may leak.

- If the gas leaks and accumulates around the unit, an explosion may result.

• Use power cables of sufficient current carrying capacity and rating.

- Cables that are too small may leak, generate heat, and cause a fire.

• Do not use the product for special purposes, such as preserving foods, works of
art, etc. It is a consumer air conditioner, not a precision refrigeration system.

- There is risk of damage or loss of property.

• Keep the unit away from children. The heat exchanger is very sharp.

- It can cause the injury, such as cutting the finger. Also the damaged fin may re-

sult in degradation of capacity.

• When installting the unit in a hospital, communication station, or similar place,
provide sufficient protection against noise.

-

The inverter equipment, private power generator, high-frequency medical
equipment, or radio communication equipment may cause the air condi­tioner to operate erroneously, or fail to operate. On the other hand, the air
conditioner may affect such equipment by creating noise that disturbs med­ical treatment or image broadcasting.

• Do not install the product where it is exposed to sea wind (salt spray) directly.

- It may cause corrosion on the product. Corrosion, particularly on the condenser

and evaporator fins, could cause product malfunction or inefficient operation.

Operation

• Do not use the air conditioner in special environments.

-

Oil, steam, sulfuric smoke, etc. can significantly reduce the performance of the air
conditioner or damage its parts.

• Do not block the inlet or outlet.

- It may cause failure of appliance or accident.

• Make the connections securely so that the outside force of the cable may not be
applied to the terminals.

- Inadequate connection and fastening may generate heat and cause a fire.

• 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 re-

sult 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.

TABLE OF CONTENTS

2 TIPS FOR SAVING ENERGY
2 IMPORTANT SAFETY INSTRUCTIONS
4 INSTALLATION PROCESS
4 OUTDOOR UNITS INFORMATION
7 ALTERNATIVE REFRIGERANT R410A
7 SELECT THE BEST LOCATION
8 INSTALLATION SPACE

8 Individual Installation

9 LIFTING METHOD
9 INSTALLATION

9 The location of the Anchor bolts
9 Foundation for Installation
10 Preparation of Piping
11 Plumbing materials and storage methods

12 REFRIGERANT PIPING INSTALLATION

12 Precautions on Pipe connection / Valve operation
12 Connection of Outdoor units
12 Installation procedure for HR unit
13 Installation of Outdoor Unit, HR Unit, Indoor Unit Refrigerant

Pipe

13 Type of HR Unit
13 Installation of Zoning Control
14 Caution

14 PIPE CONNECTIONS BETWEEN INDOOR

AND OUTDOOR UNIT

14 Preparation Work
15 Pipe Drawing Out during Single / Series connection
15 Refrigerant piping system
20 Refrigerant charging
20 Branch pipe Fitting
21 Leak Test and Vacuum drying
22 Vacuum Mode
23 Thermal insulation of refrigerant piping
24 Control box and connecting position of wiring
24 Communication and Power Cables
25 Wiring of main power supply and equipment capacity
25 Field Wiring
28 Checking the setting of outdoor units

28 HR Unit PCB

28 Switch for setup of HR Unit
30 Automatic Addressing
31 The Procedure of Automatic Addressing
31 Flow chart of auto addressing for pipe detection
31 Flow chart of manual addressing for pipe detection
31 Example of manual valve addressing (Non-Zoning setting)
32 Example of manual valve addressing (Zoning setting)
32 Example of checking valve address
32 Identification of Manual Valve ID (Address)
32 Method of checking the pipe detection result at outdoor unit
32 Setting method of Master indoor unit in zoning
33 Group Number setting
33 Static pressure compensation mode
34 Night Low Noise Function
34 Overall defrost mode
34 Setting the ODU address
35 Snow removal & rapid defrost
35 IDU capacity adjusting
35 Target pressure adjusting
35 Comfort Operation
36 Self-Diagnosis Function

38 CAUTION FOR REFRIGERANT LEAK

38 Introduction
38 Checking procedure of limiting concentration

39 INSTALLATION GUIDE AT THE SEASIDE

!

ENGLISH

4

ENGLISH

INSTALLATION PROCESS

OUTDOOR UNITS INFORMATION

The foundation must be level even

Outdoor unit foundation work

Avoid short circuits and ensure
sufficient space is allowed for service

Installation of outdoor unit

Refer to automatic addressing flowchart

Automatic addressing of indoor unit

In the final check for 24hours at 3.8 MPa(38.7 kgf/cm2) there
must be no drop in pressure.

Airtight test

Multiple core cable must not be used.
(suitable cable should be selected)

Electrical work

(connection circuits and drive circuits)

Make sure no gaps are left where
the insulating materials are joined

Heat insulation work

Make sure airflow is sufficient

Duct work

Adjust to downward gradient

Drain pipe work

Special attention to dryness,
cleanness and tightness

Refrigerant piping work

Check model name to
make sure the fitting
is made correctly

Installation of indoor unit

Take account of gradient
of drain piping

Sleeve and insert work

Make connection clearly between outdoor, indoor,
remote controller and option.

Preparation of contract drawings

Indicate clearly who will be responsible for switch setting.

Determination of division work

The vacuum pump used must have a capacity of reaching at least
5 torr, more than 1 hour

Vacuum drying

Recharge correctly as calculated in this manual. and record the
amount of added refrigerant

Additional charge of refrigerant

Make sure there are no gaps left between the facing materials
used on the ceiling

Fit facing panels

Run each indoor unit in turn to make sure the pipe work
has been fitted correctly

Test run adjustment

Explain the use of the system as clearly as possible to your customer and
make sure all relevant documentation is in order

Transfer to customer with explanation

Preheat the crank case with the electrical heater for more than 6 hours.

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.)

!

CAUTION

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.

Combination Ratio(50~200%)

Outdoor Number Connection Ratio

Single outdoor units 200%

Double outdoor units 160%

Triple outdoor units 130%

!

Power Supply : 220-240 V3~ 50Hz / 220 V3~ 60Hz
Model Name : ARUB***BTE4

Unit 1 Outdoor Unit
HP 8 10 12

Model Name

Combination Unit

ARUB080BTE4 ARUB100BTE4 ARUB120BTE4

Independ-

ent Unit

ARUB080BTE4 ARUB100BTE4 ARUB120BTE4

Refigerant charging
amount

kg 7.7 7.7 7.7
lbs 16.9 16.9 16.9

Number of maxmum connectable indoor units

13(20) 16(25) 20(30)

Net Weight

kg 195 × 1 208 × 1 208 × 1
lbs 430 × 1 459 × 1 459 × 1

Dimensions
(WxHxD)

mm (920×1,680×760)×1 (920×1,680×760)×1 (920×1,680×760)×1

inch (36.2×66.1×29.9)×1 (36.2×66.1×29.9)×1 (36.2×66.1×29.9)×1

Pipe
Connc­tions

Liquid Pipes

mm(inch) 9.52(3/8) 9.52(3/8) 12.7(1/2)

Low Pressure Gas Pipes

mm(inch) 19.05(3/4) 22.2(7/8) 28.58(1 1/8)

High Pressure Gas Pipes

mm(inch) 15.88(5/8) 19.05(3/4) 19.05(3/4)

Unit 1 Outdoor Unit
HP 14 16 18

Model Name

Combination Unit

ARUB140BTE4 ARUB160BTE4 ARUB180BTE4

Independ-

ent Unit

ARUB140BTE4 ARUB160BTE4 ARUB180BTE4

Refigerant charging
amount

kg 10.7 10.7 10.7
lbs 23.6 23.6 23.6

Number of maxmum connectable indoor units

23(35) 26(40) 29(45)

Net Weight

kg 245 x 1 245 x 1 285 × 1
lbs 540 × 1 540 × 1 628 × 1

Dimensions
(WxHxD)

mm (1,240×1,680×760)×1 (1,240×1,680×760)×1 (1,240×1,680×760)×1

inch (48.8×66.1×29.9)×1 (48.8×66.1×29.9)×1 (48.8×66.1×29.9)×1

Pipe
Connc­tions

Liquid Pipes

mm(inch) 12.7(1/2) 12.7(1/2) 15.88(5/8)

Low Pressure Gas Pipes

mm(inch) 28.58(1 1/8) 28.58(1 1/8) 28.58(1 1/8)

High Pressure Gas Pipes

mm(inch) 22.2(7/8) 22.2(7/8) 22.2(7/8)

Unit 1 Outdoor Unit 2 Outdoor Unit
HP 20 22 24

Model Name

Combination Unit

ARUB200BTE4 ARUB220BTE4 ARUB240BTE4

Independ-

ent Unit

ARUB200BTE4 ARUB120BTE4 ARUB120BTE4

ARUB100BTE4 ARUB120BTE4

Refigerant charging
amount

kg 10.7 7.7 × 2 7.7 × 2
lbs 23.6 16.9 × 2 16.9 × 2

Number of maxmum connectable indoor units

32(50) 35(44) 39(48)

Net Weight

kg 285 × 1 208 × 2 208 × 2
lbs 628 × 1 459 × 2 459 × 2

Dimensions
(WxHxD)

mm (1,240×1,680×760)×1 (920×1,680×760)×2 (920×1,680×760)×2

inch (48.8×66.1×29.9)×1 (36.2×66.1×29.9)×2 (36.2×66.1×29.9)×2

Pipe
Connc­tions

Liquid Pipes

mm(inch) 15.88(5/8) 15.88(5/8) 15.88(5/8)

Low Pressure Gas Pipes

mm(inch) 28.58(1 1/8) 34.9(1 3/8) 34.9(1 3/8)

High Pressure Gas Pipes

mm(inch) 22.2(7/8) 28.58(1 1/8) 28.58(1 1/8)

Unit 2 Outdoor Unit
HP 26 28 30

Model Name

Combination Unit

ARUB260BTE4 ARUB280BTE4 ARUB300BTE4

Independ-

ent Unit

ARUB140BTE4 ARUB160BTE4 ARUB180BTE4
ARUB120BTE4 ARUB120BTE4 ARUB120BTE4

Refigerant charging
amount

kg 10.7 × 1 + 7.7 × 1 10.7 × 1 + 7.7 × 1 10.7 × 1 + 7.7 × 1
lbs 23.6 × 1 + 16.9.0 × 1 23.6 × 1 + 16.9.0 × 1 23.6 × 1 + 16.9.0 × 1

Number of maxmum connectable indoor units

42(52) 45(56) 49(60)

Net Weight

kg 245 × 1 + 208 × 1 245 × 1 + 208 × 1 285 × 1 + 208 × 1
lbs 540 × 1 + 459 × 1 540 × 1 + 459 × 1 628 × 1 + 459 × 1

Dimensions
(WxHxD)

mm

(1,240×1,680×760)×1
+ (920×1,680×760)×1

(1,240×1,680×760)×1
+ (920×1,680×760)×1

(1,240×1,680×760)×1
+ (920×1,680×760)×1

inch

(48.8×66.1×29.9)×1

+(36.2×66.1×29.9)×1

(48.8×66.1×29.9)×1

+(36.2×66.1×29.9)×1

(48.8×66.1×29.9)×1

+(36.2×66.1×29.9)×1

Pipe
Connc­tions

Liquid Pipes

mm(inch) 19.05(3/4) 19.05(3/4) 19.05(3/4)

Low Pressure Gas Pipes

mm(inch) 34.9(1 3/8) 34.9(1 3/8) 34.9(1 3/8)

High Pressure Gas Pipes

mm(inch) 28.58(1 1/8) 28.58(1 1/8) 28.58(1 1/8)

5

ENGLISH

Power Supply : 460 V3~ 60Hz
Model Name : ARUB***DTE4

Unit 2 Outdoor Unit
HP 32 34 36

Model Name

Combination Unit

ARUB320BTE4 ARUB340BTE4 ARUB360BTE4

Independ-

ent Unit

ARUB200BTE4 ARUB200BTE4 ARUB200BTE4
ARUB120BTE4 ARUB140BTE4 ARUB160BTE4

Refigerant charging
amount

kg 10.7 × 1 + 7.7 × 1 10.7 × 2 10.7 × 2
lbs 23.6 × 1 + 16.9.0 × 1 23.6 × 2 23.6 × 2

Number of maxmum connectable indoor units

52(64) 55(64) 58(64)

Net Weight

kg 285 × 1 + 208 × 1 285 × 1 + 245 × 1 285 × 1 + 245 × 1
lbs 628 × 1 + 459 × 1 628 × 1 + 540 × 1 628 × 1 + 540 × 1

Dimensions
(WxHxD)

mm

(1,240×1,680×760)×1
+ (920×1,680×760)×1

(1,240×1,680×760)×2 (1,240×1,680×760)×2

inch

(48.8×66.1×29.9)×1

+(36.2×66.1×29.9)×1

(48.8×66.1×29.9)×2 (48.8×66.1×29.9)×2

Pipe
Connc­tions

Liquid Pipes

mm(inch) 19.05(3/4) 19.05(3/4) 19.05(3/4)

Low Pressure Gas Pipes

mm(inch) 34.9(1 3/8) 34.9(1 3/8) 41.3(1 5/8)

High Pressure Gas Pipes

mm(inch) 28.58(1 1/8) 28.58(1 1/8) 28.58(1 1/8)

Unit 3 Outdoor Unit
HP 56 58 60

Model Name

Combination Unit

ARUB560BTE4 ARUB580BTE4 ARUB600BTE4

Independ-

ent Unit

ARUB200BTE4 ARUB200BTE4 ARUB200BTE4
ARUB200BTE4 ARUB200BTE4 ARUB200BTE4
ARUB160BTE4 ARUB180BTE4 ARUB200BTE4

Refigerant charging
amount

kg 10.7 × 3 10.7 × 3 10.7 × 3
lbs 23.6 × 3 23.6 × 3 23.6 × 3

Number of maxmum connectable indoor units

64 64 64

Net Weight

kg 285 × 2 + 245 × 1 285 × 3 285 × 3
lbs 628 × 2 + 540 × 1 628 × 3 628 × 3

Dimensions
(WxHxD)

mm (1,240×1,680×760)×3 (1,240×1,680×760)×3 (1,240×1,680×760)×3
inch (48.8×66.1×29.9)×3 (48.8×66.1×29.9)×3 (48.8×66.1×29.9)×3

Pipe
Connc­tions

Liquid Pipes

mm(inch) 19.05(3/4) 19.05(3/4) 19.05(3/4)

Low Pressure Gas Pipes

mm(inch) 41.3(1 5/8) 41.3(1 5/8) 41.3(1 5/8)

High Pressure Gas Pipes

mm(inch) 34.9(1 3/8) 34.9(1 3/8) 34.9(1 3/8)

Unit 1 Outdoor Unit
HP 8 10 12

Model Name

Combination Unit

ARUB080DTE4 ARUB100DTE4 ARUB120DTE4

Independ-

ent Unit

ARUB080DTE4 ARUB100DTE4 ARUB120DTE4

Refigerant charging
amount

kg
lbs 7.7 7.7 7.7

Number of maxmum connectable indoor units

16.9 16.9 16.9

Net Weight

kg 13(20) 16(25) 20(30)
lbs 195 × 1 208 × 1 208 × 1

Dimensions
(WxHxD)

mm 430 × 1 459 × 1 459 × 1
inch (920×1,680×760)×1 (920×1,680×760)×1 (920×1,680×760)×1

Pipe
Connc­tions

Liquid Pipes

mm(inch) (36.2×66.1×29.9)×1 (36.2×66.1×29.9)×1 (36.2×66.1×29.9)×1

Low Pressure Gas Pipes

mm(inch) 9.52(3/8) 9.52(3/8) 12.7(1/2)

High Pressure Gas Pipes

mm(inch) 19.05(3/4) 22.2(7/8) 28.58(1 1/8)

Unit 1 Outdoor Unit
HP 14 16 18

Model Name

Combination Unit

ARUB140DTE4 ARUB160DTE4 ARUB180DTE4

Independ-

ent Unit

ARUB140DTE4 ARUB160DTE4 ARUB180DTE4

Refigerant charging
amount

kg
lbs 10.7 10.7 10.7

Number of maxmum connectable indoor units

23.6 23.6 23.6

Net Weight

kg 23(35) 26(40) 29(45)
lbs 245 x 1 245 x 1 285 × 1

Dimensions
(WxHxD)

mm 540 × 1 540 × 1 628 × 1
inch (1,240×1,680×760)×1 (1,240×1,680×760)×1 (1,240×1,680×760)×1

Pipe
Connc­tions

Liquid Pipes

mm(inch) (48.8×66.1×29.9)×1 (48.8×66.1×29.9)×1 (48.8×66.1×29.9)×1

Low Pressure Gas Pipes

mm(inch) 12.7(1/2) 12.7(1/2) 15.88(5/8)

High Pressure Gas Pipes

mm(inch) 28.58(1 1/8) 28.58(1 1/8) 28.58(1 1/8)

Unit 1 Outdoor Unit 2 Outdoor Unit
HP 20 22 24

Model Name

Combination Unit

ARUB200DTE4 ARUB220DTE4 ARUB240DTE4

Independ-

ent Unit

ARUB200DTE4 ARUB120DTE4 ARUB120DTE4

ARUB100DTE4 ARUB120DTE4

Refigerant charging
amount

kg
lbs 10.7 7.7 × 2 7.7 × 2

Number of maxmum connectable indoor units

23.6 16.9 × 2 16.9 × 2

Net Weight

kg 32(50) 35(44) 39(48)
lbs 285 × 1 208 × 2 208 × 2

Dimensions
(WxHxD)

mm 628 × 1 459 × 2 459 × 2
inch (1,240×1,680×760)×1 (920×1,680×760)×2 (920×1,680×760)×2

Pipe
Connc­tions

Liquid Pipes

mm(inch) (48.8×66.1×29.9)×1 (36.2×66.1×29.9)×2 (36.2×66.1×29.9)×2

Low Pressure Gas Pipes

mm(inch) 15.88(5/8) 15.88(5/8) 15.88(5/8)

High Pressure Gas Pipes

mm(inch) 28.58(1 1/8) 28.58(1 1/8) 34.9(1 3/8)

Unit 2 Outdoor Unit
HP 26 28 30

Model Name

Combination Unit

ARUB260DTE4 ARUB280DTE4 ARUB300DTE4

Independ-

ent Unit

ARUB140DTE4 ARUB160DTE4 ARUB180DTE4
ARUB120DTE4 ARUB120DTE4 ARUB120DTE4

Refigerant charging
amount

kg
lbs 10.7 × 1 + 7.7 × 1 10.7 × 1 + 7.7 × 1 10.7 × 1 + 7.7 × 1

Number of maxmum connectable indoor units

23.6 × 1 + 16.9.0 × 1 23.6 × 1 + 16.9.0 × 1 23.6 × 1 + 16.9.0 × 1

Net Weight

kg 42(52) 45(56) 49(60)
lbs 245 × 1 + 208 × 1 245 × 1 + 208 × 1 285 × 1 + 208 × 1

Dimensions
(WxHxD)

mm 540 × 1 + 459 × 1 540 × 1 + 459 × 1 628 × 1 + 459 × 1

inch

(1,240×1,680×760)×1
+ (920×1,680×760)×1

(1,240×1,680×760)×1
+ (920×1,680×760)×1

(1,240×1,680×760)×1
+ (920×1,680×760)×1

Pipe
Connc­tions

Liquid Pipes

mm(inch)

(48.8×66.1×29.9)×1

+(36.2×66.1×29.9)×1

(48.8×66.1×29.9)×1

+(36.2×66.1×29.9)×1

(48.8×66.1×29.9)×1

+(36.2×66.1×29.9)×1

Low Pressure Gas Pipes

mm(inch) 19.05(3/4) 19.05(3/4) 19.05(3/4)

High Pressure Gas Pipes

mm(inch) 34.9(1 3/8) 34.9(1 3/8) 34.9(1 3/8)

Unit 3 Outdoor Unit
HP 44 46 48

Model Name

Combination Unit

ARUB440BTE4 ARUB460BTE4 ARUB480BTE4

Independ-

ent Unit

ARUB200BTE4 ARUB200BTE4 ARUB200BTE4
ARUB140BTE4 ARUB160BTE4 ARUB180BTE4
ARUB100BTE4 ARUB100BTE4 ARUB100BTE4

Refigerant charging
amount

kg (10.7 × 2) + 7.7 × 1 (10.7 × 2) + 7.7 × 1 (10.7 × 2) + 7.7 × 1
lbs (23.6 ×2) + 16.9.0 × 1 (23.6 ×2) + 16.9.0 × 1 (23.6 ×2) + 16.9.0 × 1

Number of maxmum connectable indoor units

64 64 64

Net Weight

kg

285 × 1 + 245 × 1 + 208 × 1 285 × 1 + 245 × 1 + 208 × 1

285 × 2 + 208 × 1

lbs

628 × 1 + 540 × 1 + 459 × 1 628 × 1 + 540 × 1 + 459 × 1

628 × 2 + 459 × 1

Dimensions
(WxHxD)

mm

(1,240×1,680×760)×2
+ (920×1,680×760)×1

(1,240×1,680×760)×2
+ (920×1,680×760)×1

(1,240×1,680×760)×2
+ (920×1,680×760)×1

inch

(48.8×66.1×29.9)×2

+(36.2×66.1×29.9)×1

(48.8×66.1×29.9)×2

+(36.2×66.1×29.9)×1

(48.8×66.1×29.9)×2

+(36.2×66.1×29.9)×1

Pipe
Connc­tions

Liquid Pipes

mm(inch) 19.05(3/4) 19.05(3/4) 19.05(3/4)

Low Pressure Gas Pipes

mm(inch) 41.3(1 5/8) 41.3(1 5/8) 41.3(1 5/8)

High Pressure Gas Pipes

mm(inch) 34.9(1 3/8) 34.9(1 3/8) 34.9(1 3/8)

Unit 3 Outdoor Unit
HP 50 52 54

Model Name

Combination Unit

ARUB500BTE4 ARUB520BTE4 ARUB540BTE4

Independ-

ent Unit

ARUB200BTE4 ARUB200BTE4 ARUB200BTE4
ARUB200BTE4 ARUB200BTE4 ARUB200BTE4
ARUB100BTE4 ARUB120BTE4 ARUB140BTE4

Refigerant charging
amount

kg (10.7 × 2) + 7.7 × 1 (10.7 × 2) + 7.7 × 1 10.7 × 3
lbs (23.6 ×2) + 16.9.0 × 1 (23.6 ×2) + 16.9.0 × 1 23.6 × 3

Number of maxmum connectable indoor units

64 64 64

Net Weight

kg 285 × 2 + 208 × 1 285 × 2 + 208 × 1 285 × 2 + 245 × 1
lbs 628 × 2 + 459 × 1 628 × 2 + 459 × 1 628 × 2 + 540 × 1

Dimensions
(WxHxD)

mm

(1,240×1,680×760)×2
+ (920×1,680×760)×1

(1,240×1,680×760)×2
+ (920×1,680×760)×1

(1,240×1,680×760)×3

inch

(48.8×66.1×29.9)×2

+(36.2×66.1×29.9)×1

(48.8×66.1×29.9)×2

+(36.2×66.1×29.9)×1

(48.8×66.1×29.9)×3

Pipe
Connc­tions

Liquid Pipes

mm(inch) 19.05(3/4) 19.05(3/4) 19.05(3/4)

Low Pressure Gas Pipes

mm(inch) 41.3(1 5/8) 41.3(1 5/8) 41.3(1 5/8)

High Pressure Gas Pipes

mm(inch) 34.9(1 3/8) 34.9(1 3/8) 34.9(1 3/8)

Unit 2 Outdoor Unit 3 Outdoor Unit
HP 38 40 42

Model Name

Combination Unit

ARUB380BTE4 ARUB400BTE4 ARUB420BTE4

Independ-

ent Unit

ARUB200BTE4 ARUB200BTE4 ARUB180BTE4
ARUB180BTE4 ARUB200BTE4 ARUB140BTE4

ARUB100BTE4

Refigerant charging
amount

kg 10.7 × 2 10.7 × 2 (10.7 × 2) + 7.7 × 1
lbs 23.6 × 2 23.6 × 2 (23.6 ×2) + 16.9.0 × 1

Number of maxmum connectable indoor units

61(64) 64 64

Net Weight

kg 285 × 2 285 × 2

285 × 1 + 245 × 1 + 208 × 1

lbs 628 × 2 628 × 2

628 × 1 + 540 × 1 + 459 × 1

Dimensions
(WxHxD)

mm (1,240×1,680×760)×2 (1,240×1,680×760)×2

(1,240×1,680×760)×2
+ (920×1,680×760)×1

inch (48.8×66.1×29.9)×2 (48.8×66.1×29.9)×2

(48.8×66.1×29.9)×2

+(36.2×66.1×29.9)×1

Pipe
Connc­tions

Liquid Pipes

mm(inch) 19.05(3/4) 19.05(3/4) 19.05(3/4)

Low Pressure Gas Pipes

mm(inch) 41.3(1 5/8) 41.3(1 5/8) 41.3(1 5/8)

High Pressure Gas Pipes

mm(inch) 34.9(1 3/8) 34.9(1 3/8) 34.9(1 3/8)

6

ENGLISH

Unit 2 Outdoor Unit
HP 32 34 36

Model Name

Combination Unit

ARUB320DTE4 ARUB340DTE4 ARUB360DTE4

Independ-

ent Unit

ARUB200DTE4 ARUB200DTE4 ARUB200DTE4
ARUB120DTE4 ARUB140DTE4 ARUB160DTE4

Refigerant charging
amount

kg
lbs 10.7 × 1 + 7.7 × 1 10.7 × 2 10.7 × 2

Number of maxmum connectable indoor units

23.6 × 1 + 16.9.0 × 1 23.6 × 2 23.6 × 2

Net Weight

kg 52(64) 55(64) 58(64)
lbs 285 × 1 + 208 × 1 285 × 1 + 245 × 1 285 × 1 + 245 × 1

Dimensions
(WxHxD)

mm 628 × 1 + 459 × 1 628 × 1 + 540 × 1 628 × 1 + 540 × 1

inch

(1,240×1,680×760)×1
+ (920×1,680×760)×1

(1,240×1,680×760)×2 (1,240×1,680×760)×2

Pipe
Connc­tions

Liquid Pipes

mm(inch)

(48.8×66.1×29.9)×1

+(36.2×66.1×29.9)×1

(48.8×66.1×29.9)×2 (48.8×66.1×29.9)×2

Low Pressure Gas Pipes

mm(inch) 19.05(3/4) 19.05(3/4) 19.05(3/4)

High Pressure Gas Pipes

mm(inch) 34.9(1 3/8) 34.9(1 3/8) 41.3(1 5/8)

Unit 3 Outdoor Unit
HP 56 58 60

Model Name

Combination Unit

ARUB560DTE4 ARUB580DTE4 ARUB600DTE4

Independ-

ent Unit

ARUB200DTE4 ARUB200DTE4 ARUB200DTE4
ARUB200DTE4 ARUB200DTE4 ARUB200DTE4
ARUB160DTE4 ARUB180DTE4 ARUB200DTE4

Refigerant charging
amount

kg
lbs 10.7 × 3 10.7 × 3 10.7 × 3

Number of maxmum connectable indoor units

23.6 × 3 23.6 × 3 23.6 × 3

Net Weight

kg 64 64 64
lbs 285 × 2 + 208 × 1 285 × 3 285 × 3

Dimensions
(WxHxD)

mm 628 × 2 + 540 × 1 628 × 3 628 × 3
inch (1,240×1,680×760)×3 (1,240×1,680×760)×3 (1,240×1,680×760)×3

Pipe
Connc­tions

Liquid Pipes

mm(inch) (48.8×66.1×29.9)×3 (48.8×66.1×29.9)×3 (48.8×66.1×29.9)×3

Low Pressure Gas Pipes

mm(inch) 19.05(3/4) 19.05(3/4) 19.05(3/4)

High Pressure Gas Pipes

mm(inch) 41.3(1 5/8) 41.3(1 5/8) 41.3(1 5/8)

Unit 4 Outdoor Unit
HP 62 64 66

Model Name

Combination Unit

ARUB620DTE4 ARUB640DTE4 ARUB660DTE4

Independ-

ent Unit

ARUB180DTE4 ARUB180DTE4 ARUB180DTE4
ARUB160DTE4 ARUB180DTE4 ARUB180DTE4
ARUB140DTE4 ARUB140DTE4 ARUB160DTE4

Refigerant charging
amount

kg ARUB140DTE4 ARUB140DTE4 ARUB140DTE4
lbs 10.7 x 4 10.7 x 4 10.7 x 4

Number of maxmum connectable indoor units

23.6 × 4 23.6 × 4 23.6 × 4

Net Weight

kg 64 64 64
lbs 285 × 1 + 245 × 3 285 × 2 + 245 × 2 285 × 2 + 245 × 2

Dimensions
(WxHxD)

mm 628 × 1 + 540 × 3 628 × 2 + 540 × 2 628 × 2 + 540 × 2
inch (1,240×1,680×760)×4 (1,240×1,680×760)×4 (1,240×1,680×760)×4

Pipe
Connc­tions

Liquid Pipes

mm(inch) (48.8×66.1×29.9)×4 (48.8×66.1×29.9)×4 (48.8×66.1×29.9)×4

Low Pressure Gas Pipes

mm(inch) 22.2(7/8) 22.2(7/8) 22.2(7/8)

High Pressure Gas Pipes

mm(inch) 44.5(1 3/4) 44.5(1 3/4) 53.98(2 1/8)

Unit 4 Outdoor Unit
HP 68 70 72

Model Name

Combination Unit

ARUB680DTE4 ARUB700DTE4 ARUB720DTE4

Independ-

ent Unit

ARUB200DTE4 ARUB200DTE4 ARUB200DTE4
ARUB200DTE4 ARUB200DTE4 ARUB200DTE4
ARUB140DTE4 ARUB160DTE4 ARUB180DTE4

Refigerant charging
amount

kg ARUB140DTE4 ARUB140DTE4 ARUB140DTE4
lbs 10.7 x 4 10.7 x 4 10.7 x 4

Number of maxmum connectable indoor units

23.6 × 4 23.6 × 4 23.6 × 4

Net Weight

kg 64 64 64
lbs 285 × 2 + 245 × 2 285 × 2 + 245 × 2 285 × 3 + 245 × 1

Dimensions
(WxHxD)

mm 628 × 2 + 540 × 2 628 × 2 + 540 × 2 628 × 3 + 540 × 1
inch (1,240×1,680×760)×4 (1,240×1,680×760)×4 (1,240×1,680×760)×4

Pipe
Connc­tions

Liquid Pipes

mm(inch) (48.8×66.1×29.9)×4 (48.8×66.1×29.9)×4 (48.8×66.1×29.9)×4

Low Pressure Gas Pipes

mm(inch) 22.2(7/8) 22.2(7/8) 22.2(7/8)

High Pressure Gas Pipes

mm(inch) 53.98(2 1/8) 53.98(2 1/8) 53.98(2 1/8)

Unit 4 Outdoor Unit
HP 74 76

Model Name

Combination Unit

ARUB740DTE4 ARUB760DTE4

Independ-

ent Unit

ARUB200DTE4 ARUB200DTE4
ARUB200DTE4 ARUB200DTE4
ARUB180DTE4 ARUB180DTE4

Refigerant charging
amount

kg ARUB160DTE4 ARUB180DTE4
lbs 10.7 x 4 10.7 x 4

Number of maxmum connectable indoor units

23.6 × 4 23.6 × 4

Net Weight

kg 64 64
lbs 285 × 3 + 245 × 1 285 × 4

Dimensions
(WxHxD)

mm 628 × 3 + 540 × 1 628 × 4
inch (1,240×1,680×760)×4 (1,240×1,680×760)×4

Pipe
Connc­tions

Liquid Pipes

mm(inch) (48.8×66.1×29.9)×4 (48.8×66.1×29.9)×4

Low Pressure Gas Pipes

mm(inch) 22.2(7/8) 22.2(7/8)

High Pressure Gas Pipes

mm(inch) 53.98(2 1/8) 53.98(2 1/8)

Unit 4 Outdoor Unit
HP 78 80

Model Name

Combination Unit

ARUB780DTE4 ARUB800DTE4

Independ-

ent Unit

ARUB200DTE4 ARUB200DTE4
ARUB200DTE4 ARUB200DTE4
ARUB200DTE4 ARUB200DTE4

Refigerant charging
amount

kg ARUB180DTE4 ARUB200DTE4
lbs 10.7 x 4 10.7 x 4

Number of maxmum connectable indoor units

23.6 × 4 23.6 × 4

Net Weight

kg 64 64
lbs 285 × 4 285 × 4

Dimensions
(WxHxD)

mm 628 × 4 628 × 4
inch (1,240×1,680×760)×4 (1,240×1,680×760)×4

Pipe
Connc­tions

Liquid Pipes

mm(inch) (48.8×66.1×29.9)×4 (48.8×66.1×29.9)×4

Low Pressure Gas Pipes

mm(inch) 22.2(7/8) 22.2(7/8)

High Pressure Gas Pipes

mm(inch) 53.98(2 1/8) 53.98(2 1/8)

Unit 2 Outdoor Unit 3 Outdoor Unit
HP 38 40 42

Model Name

Combination Unit

ARUB380DTE4 ARUB400DTE4 ARUB420DTE4

Independ-

ent Unit

ARUB200DTE4 ARUB200DTE4 ARUB180DTE4
ARUB180DTE4 ARUB200DTE4 ARUB140DTE4

ARUB100DTE4

Refigerant charging
amount

kg
lbs 10.7 × 2 10.7 × 2 (10.7 × 2) + 7.7 × 1

Number of maxmum connectable indoor units

23.6 × 2 23.6 × 2 (23.6 ×2) + 16.9.0 × 1

Net Weight

kg 61(64) 64 64
lbs 285 × 2 285 × 2

285 × 1 + 245 x 1 + 208 × 1

Dimensions
(WxHxD)

mm 628 × 2 628 × 2

628 × 1 + 540 × 1 +459 × 1

inch (1,240×1,680×760)×2 (1,240×1,680×760)×2

(1,240×1,680×760)×2
+ (920×1,680×760)×1

Pipe
Connc­tions

Liquid Pipes

mm(inch) (48.8×66.1×29.9)×2 (48.8×66.1×29.9)×2

(48.8×66.1×29.9)×2

+(36.2×66.1×29.9)×1

Low Pressure Gas Pipes

mm(inch) 19.05(3/4) 19.05(3/4) 19.05(3/4)

High Pressure Gas Pipes

mm(inch) 41.3(1 5/8) 41.3(1 5/8) 41.3(1 5/8)

Unit 3 Outdoor Unit
HP 44 46 48

Model Name

Combination Unit

ARUB440DTE4 ARUB460DTE4 ARUB480DTE4

Independ-

ent Unit

ARUB200DTE4 ARUB200DTE4 ARUB200DTE4
ARUB140DTE4 ARUB160DTE4 ARUB180DTE4
ARUB100DTE4 ARUB100DTE4 ARUB100DTE4

Refigerant charging
amount

kg
lbs (10.7 × 2) + 7.7 × 1 (10.7 × 2) + 7.7 × 1 (10.7 × 2) + 7.7 × 1

Number of maxmum connectable indoor units

(23.6 ×2) + 16.9.0 × 1 (23.6 ×2) + 16.9.0 × 1 (23.6 ×2) + 16.9.0 × 1

Net Weight

kg 64 64 64
lbs

285 × 1 + 245 x 1 + 208 × 1 285 × 1 + 245 x 1 + 208 × 1

285 × 2 + 208 × 1

Dimensions
(WxHxD)

mm

628 × 1 + 540 × 1 +459 × 1 628 × 1 + 540 × 1 +459 × 1

628 × 2 + 459 × 1

inch

(1,240×1,680×760)×2
+ (920×1,680×760)×1

(1,240×1,680×760)×2
+ (920×1,680×760)×1

(1,240×1,680×760)×2
+ (920×1,680×760)×1

Pipe
Connc­tions

Liquid Pipes

mm(inch)

(48.8×66.1×29.9)×2

+(36.2×66.1×29.9)×1

(48.8×66.1×29.9)×2

+(36.2×66.1×29.9)×1

(48.8×66.1×29.9)×2

+(36.2×66.1×29.9)×1

Low Pressure Gas Pipes

mm(inch) 19.05(3/4) 19.05(3/4) 19.05(3/4)

High Pressure Gas Pipes

mm(inch) 41.3(1 5/8) 41.3(1 5/8) 41.3(1 5/8)

Unit 3 Outdoor Unit
HP 50 52 54

Model Name

Combination Unit

ARUB500DTE4 ARUB520DTE4 ARUB540DTE4

Independ-

ent Unit

ARUB200DTE4 ARUB200DTE4 ARUB200DTE4
ARUB200DTE4 ARUB200DTE4 ARUB200DTE4
ARUB100DTE4 ARUB120DTE4 ARUB140DTE4

Refigerant charging
amount

kg
lbs (10.7 × 2) + 7.7 × 1 (10.7 × 2) + 7.7 × 1 10.7 × 3

Number of maxmum connectable indoor units

(23.6 ×2) + 16.9.0 × 1 (23.6 ×2) + 16.9.0 × 1 23.6 × 3

Net Weight

kg 64 64 64
lbs 285 × 2 + 208 × 1 285 × 2 + 208 × 1 285 × 2 + 208 × 1

Dimensions
(WxHxD)

mm 628 × 2 + 459 × 1 628 × 2 + 459 × 1 628 × 2 + 540 × 1

inch

(1,240×1,680×760)×2
+ (920×1,680×760)×1

(1,240×1,680×760)×2
+ (920×1,680×760)×1

(1,240×1,680×760)×3

Pipe
Connc­tions

Liquid Pipes

mm(inch)

(48.8×66.1×29.9)×2

+(36.2×66.1×29.9)×1

(48.8×66.1×29.9)×2

+(36.2×66.1×29.9)×1

(48.8×66.1×29.9)×3

Low Pressure Gas Pipes

mm(inch) 19.05(3/4) 19.05(3/4) 19.05(3/4)

High Pressure Gas Pipes

mm(inch) 41.3(1 5/8) 41.3(1 5/8) 41.3(1 5/8)

7

ENGLISH

Select installation location of the HR unit suitable for following condi­tions

- Avoid a place where rain may enter since the HR unit is for indoor.

- Sufficient service space must be obtained.

- Refrigerant pipe must not exceed limited length.

- Avoid a place subject to a strong radiation heat from other heat
source.

- Avoid a place where oil spattering, vapor spray or high frequency
electric noise is expected.

- Install the unit at a place in which it is not affected by operation noise.
(Installation within cell such as meeting room etc. may disturb busi­ness due to noise.)

- Place where refrigerant piping, drain piping and electrical wiring
works are easy.

54

6

41961 (137)

124

128

30 60

300more

(Servicing space)

450more

(Servicing space)

100 more100 more
(Serviceing space)(Serviceing space)

100 more
(Serviceing space)

100 more100 more
(Serviceing space)(Serviceing space)

300more

(Servicing space)

300more

(Servicing space)

100 more
(Serviceing space)

Inspection door
(servicing space)

481

345

1

2

3

7

450

450

453(174)

(174)

182

218

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.

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.)

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.

!

8

ENGLISH

During the installation of the unit, consider service, inlet, and outlet
acquire the minimum space as shown in the figures below.

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.

Individual Installation

INSTALLATION SPACE

(Unit: mm)

No. Part Name

Description

PRHR041/031 PRHR021

1

Low pressure Gas
pipe connection port

Ø28.58 Brazing con­nection

Ø22.2 Brazing con­nection

2

High pressure Gas
pipe connection port

Ø22.2 Brazing con­nection

Ø19.05 Brazing con­nection

3

Liquid pipe connec­tion port

Ø15.88 Brazing con­nection(PRHR041)

Ø9.52 Brazing con­nection

Ø12.7 Brazing con­nection(PRHR031)

4

Indoor unit Gas pipe
connection port

Ø15.88 Brazing con­nection

Ø15.88 Brazing con­nection

5

Indoor unit Liquid
pipe connection port

Ø9.52 Brazing con­nection

Ø9.52 Brazing con­nection

6 Control box - -

7 Hanger metal M10 or M8 M10 or M8

NOTE

!

• Be sure to install the inspection door at the control box side.

• If reducers are used, servicing space must be increased equal to
reducer's dimension.

Category

Installation Space

Case 1

(10mm≤Side Space≤49mm)

Case 2

(Side Space≥49mm)

4 sides

are

walls

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

C

B

D

A E

B

D

A

C

B

D

E

C

AE

B

D

A

C

B

D

E

C

A E

B

F

C

D

AE

B

D

A

C

B

D

E

C

AE

B

F

C

D

A E

B

F

C

D

Rear

to

Rear

A≥10
B≥500
C≥10
D≥500
E≥20
F≥900

A≥50
B≥500
C≥50
D≥500
E≥100
F≥600

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

Only 2

sides

are

walls

A≥10
B≥300

A≥200
B≥300
E≥400

Limita-

tions on

the

height

of the

wall

(Refer

to 4 side

walls)

AE

B

D

A

C

B

D

E

C

AE

B

F

C

D

A

B

F

C

D

AE

B

F

C

D

AE

B

D

A

C

B

D

E

C

AE

B

F

C

D

A E

B

F

C

D

A

B

F

C

D

AE

B

F

C

D

AE

B

D

A

C

B

D

E

C

AE

B

F

C

D

AE

B

F

C

D

A E

B

F

D

E

C

A

B

F

C

D

AE

B

F

C

D

AE

B

D

A

C

B

D

E

C

AE

B

F

C

D

A

B

AE

B

F

C

D

AE

B

F

D

E

C

A

B

F

C

D

AE

B

F

C

D

AE

B

D

A

C

B

D

E

C

AE

B

F

C

D

A

E

B

A

B

E

AE

B

F

C

D

AE

B

F

D

E

C

A

B

F

C

D

AE

B

F

C

D

AE

B

D

A

C

B

D

E

C

AE

B

F

C

D

A

E

B

A

B

E

AE

B

F

C

D

AE

B

F

D

E

C

A

B

F

C

D

AE

B

F

C

D

h2

h1

1500

A

B

500

AE

B

D

A

C

B

D

E

C

AE

B

F

C

D

A

E

B

A

B

E

AE

B

F

C

D

AE

B

F

D

E

C

A

B

F

C

D

AE

B

F

C

D

240 or
more

50 or more

45° or

more

• 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

9

ENGLISH

• 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.

At least 100mm

At least 100m

m

At least 100mm

At least 100mm

At least 100mm

At least 100mm

Center of the Unit

For outdoor units
should not be
supported only by
the corner supports.

Center of the Unit

730

760

6565

Unit : mm

At least 65At least 65

Chassis Outdoor Unit Capacity A(mm) B(mm)

UX2 8~12 HP 920 792
UX3 14~20 HP 1240 1102

• 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).

At least
200mm

• 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.

- 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.

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.

• When carrying the suspended, unit pass the ropes under the unit and
use the two suspension points each at the front and rear.

• Always lift the unit with ropes attached at four points so that impact
is not applied to the unit.

• Attach the ropes to the unit at an angle of 40° or less.

!

LIFTING METHOD

Foundation for Installation

The location of the Anchor bolts

INSTALLATION

Locking points for

transportation ropes

Forklift Carrying Hole

Forklift Carrying Guide

10

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.

Flaring work

- Carry out flaring work using flaring tool as shown below.

Firmly hold copper tube in a bar(or die) as indicated dimension in the
table above.

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.

Indoor unit
[kW(Btu/h]

Pipe " A "

Gas Liquid Gas Liquid

<5.6(19,100) 1/2" 1/4" 0.5~0.8 0~0.5
<16.0(54,600) 5/8" 3/8" 0.8~1.0 0.5~0.8
<22.4(76,400) 3/4" 3/8" 1.0~1.3 0.5~0.8

Bar

Copper pipe

Clamp handle

Red arrow mark

Cone

Yoke

Handle

Bar

"A"

Inclined

Inside is shining without scratches.

Smooth all round

Even length

all round

Surface

damaged

Cracked Uneven

thickness

= Improper flaring =

Flare shape and flare nut tightening torque

Precautions when connecting pipes

- See the following table for flare part machining dimensions.

- When connecting the flare nuts, apply refrigerant oil to the inside and
outside of the flares and turn them three or four times at first. (Use
ester oil or ether oil.)

-

See the following table for tightening torque.(Applying too much torque may
cause the flares to crack.)

- After all the piping has been connected, use nitrogen to perform a
gas leak check.

Pipe size

Tightening

torque(N·cm)

A(mm) Flare shape

Ø9.52 38±4 12.8-13.2

Ø12.7 55±6 16.2-16.6

Ø15.88 75±7 19.3-19.7

CAUTION

• Always use a charge hose for service port connection.

•

After tightening the cap, check that no refrigerant leaks are present

.

• When loosening a flare nut, always use two wrenches in
combination, When connecting the piping,
always use a spanner and torque wrench
in combination to tighten the flare nut.

• When connecting a flare nut, coat the
flare(inner and outer faces) with oil for
R410A(PVE) and hand tighten the nut
3 to 4 turns as the initial tightening.

Union

!

Unit : mm

200

75

75

200

100

Ⓐ The corner part must be fixed firmly. Otherwise, the support for the

installation may be bent.

Ⓑ Get and use M10 Anchor bolt.
Ⓒ Put Cushion Pad between the outdoor unit and ground support for

the vibration protection in wide area.

Ⓓ Space for pipes and wiring (Pipes and wirings for bottom side)
Ⓔ H-beam support
Ⓕ Concrete support

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.

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.

Pallet(Wood Support)

- Remove before Installation

!

!

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

Reamer

Point down

Copper

tube

90

Slanted Uneven Rough

Preparation of Piping

2

90

45

2

A

R=0.4~0.8

11

ENGLISH

Refrigerant piping on three principles

Drying Cleanliness Airtight

Should be no moisture

inside

No dust inside.

There is no refrigerant

leakage

Items

Moisture

Dust

Leakage

Cause
failure

- Significant hydroly­sis of refrigerant oil

- Degradation of re­frigerant oil

- Poor insula’tion of
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

Coun-

termea-

sure

-

No moisture in the pipe

- Until the connec­tion is completed,
the plumbing pipe
entrance should be
strictly controlled.

- Stop plumbing at
rainy day.

- 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.

- 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.

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

Nitrogen gas
Pressure 0.02MPa less

Auxiliary valve

Taping

(Should not

contain air)

Welding Point

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.

Oxide scale

Nitrogen

Opening shutoff valve

1 Remove the cap and turn the valve counter clockwise with the

hexagon wrench.

2 Turn it until the shaft stops.

Do not apply excessive force to the shutoff valve. Doing so may
break the valve body, as the valve is not a backseat type. Always
use the special tool.

3 Make sure to tighten the cap securely.

Insulation of shutoff valve

1

Use the heat insulation material for the refrigerant piping which has
an excellent heat-resistance (over 120°C).

2 Precautions in high humidity circumstance:

This air conditioner has been tested according to the "ISO Condi­tions with Mist" and confirmed that there is not any default. How­ever, if it is operated for a long time in high humid atmosphere
(dew point temperature: more than 23°C), water drops are liable to
fall. In this case, add heat insulation material according to the fol­lowing procedure:

- Heat insulation material to be prepared... EPDM (Ethylene Propy­lene Diene Methylene)-over 120°C the heat-resistance tempera­ture.

- Add the insulation over 10mm thickness at high humidity environ-

ment.

Closing shutoff valve

1 Remove the cap and turn the valve clockwise with the hexagon

wrench.

2 Securely tighten the valve until the shaft contacts the main body seal.

3 Make sure to tighten the cap securely.

* For the tightening torque, refer to the table on the below.

Tightening torque

Shutoff

valve

size

Tightening torque N·m(Turn clockwise to close)

Shaft

(valve body)

Cap

(Valve lid)

Service

port

Flare

nut

Gas line piping

attached to unit

Closed Opened

Hexagonal

wrench

Ø6.35

6.0±0.6

5.0±0.0

4mm

17.6±2.0

12.7±2

16±2

-

Ø9.52 38±4

Ø12.7 10.0±1.0 20.0±2.0 55±6

Ø15.88 12.0±1.2

5mm

25.0±2.5

75±7

Ø19.05 14.0±1.4 110±10

Ø22.2

30.0±3.0 8mm -

Ø25.4 25±3

Plumbing materials and storage methods

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.

Indoor unit

Fastening band
(accessory)

Refrigerant piping

Thermal insulator
(accessory)

12

ENGLISH

For more information, refer accessory installation manual.

Y branch

A

B

To outdoor unit

To branch piping or indoor unit

A

B

Facing

upwards

Facing

downwards

Within ± 3° Within ± 3°

Viewed from point A
in direction of arrow

Within +/- 10°

Hanger metal

Flat washer

Hanging bolt

Installation procedure for HR unit

1. Using an insert-hole-in- anchor, hang the hanging bolt.

2. Install a hexagon nut and a flat washer (locally-procured)to the hang­ing bolt as shown in the figure in the bottom, and fit the main unit to
hang on the hanger metal.

3. After checking with a level that the unit is level, tighten the hexagon
nut.
* The tilt of the unit should be within ±5° in front/back and left/right.

4. This unit should be installed suspended from ceiling and side A
should always be
facing up.

5. Insulate not used pipes completely as shown in the figure.

Connection of Outdoor units

2, 3, 4 Outdoor Units

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 ob-

served. In fact, due to the organic acids generated by oxida-

tion of the alcohol contained in the anti-oxidants, ants nest

corrosion occurs. (causes of organic acid · alcohol + copper +

water + temperature)

CAUTION

!

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.)

!

WARNING

• Always careful not to leak the refrigerant during welding.

• The refrigerant generates poisonous gas harmful to human body

if combusted.

• Do not perform welding in a closed space.

• Be sure to close the cap of the service port to prevent gas leak-

age after the work.

!

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.

REFRIGERANT PIPING INSTALLATION

Outdoor units Model

2 Unit

3 Unit

4 Unit

C

C

C

C

C

Low Pressure Gas Pipe Liquid Pipe High Pressure Gas Pipe

C

ARCNB21

ARCNB31

A

ARCNB41

416
408

I.D.28.58 I.D.28.58

I.D.34.9

I.D.31.8

I.D.41.3 I.D.38.1

O.D.34.9

130

341
298

I.D.41.3

O.D.34.9

I.D.41.3

125

415
375

I.D.44.48 I.D.53.98

I.D.22.2

I.D.28.58

I.D.34.9

111

I.D.28.58

134

I.D.41.3

I.D.28.58

I.D.15.88 I.D.15.88

111

I.D.19.05

I.D.22.2

I.D.22.2

I.D.22.2

I.D.19.05

I.D.19.05

331
314

I.D.12.7

83

I.D.9.52

O.D.19.05

I.D.12.7

I.D.15.88

70

334
281

I.D.19.05

I.D.15.88

I.D.12.7

334
281

I.D.19.05

O.D.22.2I.D.25.4

I.D.15.88

I.D.12.7

80

I.D.22.2

I.D.19.05

I.D.28.58 I.D.28.58

83

I.D.34.9

I.D.31.8

I.D.41.3 I.D.38.1

83

I.D.41.3

I.D.41.3

130

334
281

416
408

341
298

O.D.34.9

83

I.D.19.05

I.D.15.88

I.D.12.7

111

I.D.22.2

O.D.34.9

I.D.28.58

I.D.34.9

111

I.D.28.58

125

Low Pressure Gas pipe

High Pressure Gas pipe

Liquid pipe

Service Port

Refrigerant Charging Port

Six-sided Nut
(M10 or M8)

Hanger metal

Hanger metal

Flat washer

Flat washer
(M10)

Hanging bolt

Hanging bolt
(M10 or M8)

Insulation

A

13

ENGLISH

Type of HR Unit

Select an HR unit according to the number of the indoor units to be in­stalled. HR units are classified into 3 types by the number of con­nectable indoor units.

Ex) Installation of 6 indoor units

Consists of HR unit for 4 branches and HR unit for 2 branches.

Joint Method of HR Unit (Big Duct : ARNU76GB8-,
ARNU96GB8-)

Joint Method is required when B5/B8 chassis is installed. In Joint
Method, two neighboring outlets of one HR unit are linked by Y branch
pipe and connected to one indoor unit.

Whenever connecting the indoor units with the HR unit, install the in­door units in numerical order from No.1.

Ex) In case of installing 3 indoor units : No. 1, 2, 3 (O), No. 1, 2, 4 (X),

No.1, 3, 4 (X), No.2, 3, 4 (X).

CAUTION

!

PRHR031(3 branches)PRHR021(2 branches)

1

2

1

3

2

PRHR041(4 branches)

1

2

3

4

Gas pipe Ø15.88 (5/8)
Liquid pipe Ø9.52 (3/8)
Brazing Type

1

2

3

4

Remove caps on
The brazing part.

Liquid pipe

Low pressure gas pipe

High pressure gas pipe

HR unit PRHR021 PRHR031 PRHR041

Low pressure

gas pipe

Ø22.2 Ø28.58 Ø28.58

High pressure

gas pipe

Ø19.05 Ø22.2 Ø22.2

Liquid pipe Ø9.52 Ø12.7 Ø15.88

WARNING

• A branch pipe of HR unit allows up to 14.1kW based on cooling ca­pacity of the indoor unit.
(up to 14.1kW (48kBtu/h) for max installation)

• The maximum total capacity of indoor units connected to a
PRHR041 HR unit is 56.4kW
(192 kBtu/h).

• The maximum number of indoor units connected to a PRHR041
HR unit are 32 indoor units. (The Maximum indoor units per a
branch pipe of HR unit are 8 indoor units)

• There is not operate “Auto-changeover” & “Mode override” func­tion in the zoning group.

• When there are operating indoor units on cooling(heating) mode,
another indoor units aren’t changed on heating(cooling) mode in
the zoning group.

!

Installation of Zoning Control

Some indoor unit can be connected to one port of HR unit.

Installation of Outdoor Unit, HR Unit, Indoor Unit
Refrigerant Pipe

3 pipes are connected to the HR unit from the outdoor unit, classified
into liquid pipe, low pressure gas pipe and high pressure gas pipe de­pending on status of refrigerant passing through the pipe.

You must connect 3 pipes from outdoor unit to HR unit.
For connection between indoor unit and HR unit, you must connect

both liquid pipe and gas pipe from the HR unit to the indoor unit. In this
case, connect them to the indoor unit starting from No.1 connection
port of the HR unit (the port number is displayed on ports of the HR
unit). Use auxiliary flare as annexed parts in connection to the indoor
unit.

Gas pipe

HR Unit

High pressure
Gas pipe

4

3

2

1

Liquid pipe

Low pressure
Gas pipe

Liquid pipe

Gas pipe

Liquid pipe

HR unit HR unit

Zoning control group 1 Zoning control group 2

(Max. 8 Indoor Units)

Changeover under control Auto changeover Changeover under control

sealing

(Max. 8 Indoor Units)

1st HR Unit 2nd HR Unit

1 2 3 4

B8

BG

(96k) (28k)

BH

1 2 3 4

B8

(76k)(21k)