LG ARWN180LAS4 INSTALLATION INSTRUCTIONS

INSTALLATION MANUAL

ENGLISH

ITALIANO ESPAÑOL

FRANÇAIS

DEUTSCH

ČEŠTINA

ΕΛΛΗΝΙΚΆ

NEDERLANDS

POLSKI

LIMBA ROMÂNĂ

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.

Ɠ

This product contains Fluorinated Greenhouse Gases. (R410A)

Original instruction

[

Representative] LG Electronics Inc. EU Representative : LG Electronics European Shared Service Center B.V.

Krijgsman 1, 1186 DM Amstelveen, The Netherlands

[

Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-gu, Changwon-si,

Gyeongsangnam-do, KOREA

www.lg.com

P/NO : MFL68100309

2

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 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, explo-

sion, or injury.

• Do not install, remove, or re-install the unit
by yourself (customer).

- There is risk of fire, electric shock, explo-

sion, or injury.

!

!

!

ENGLISH

• 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.

• 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

• 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.

• Do not install the unit at the outdoors.

- Otherwise it may cause fire, electric shock

and trouble.

• 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 ex-

plosion.

• 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 se-

curely, dust or water may enter the outside
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 appropri-

ate 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 outside 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.

ENGLISH

4

CAUTION

Installation

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

- Low refrigerant levels may cause failure of prod-

uct.

• Do not install the product where the noise or hot
air from the outside 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.

• 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.

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 gen-

erate 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 outside unit , suspending

it at the specified positions on the unit base.
Also support the outside 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.

!

ENGLISH

5

• Do not operate the air conditioner with the panels
or guards removed.

- Rotating, hot, or high-voltage parts can cause in-

juries.

• 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.

ENGLISH

TABLE OF CONTENTS

2 TIPS FOR SAVING ENERGY

2 IMPORTANT SAFETY INSTRUCTIONS

6 INSTALLATION PROCESS

6 OUTSIDE UNITS INFORMATION

8 ALTERNATIVE REFRIGERANT R410A

8 SELECT THE BEST LOCATION

9 INSTALLATION SPACE

9 WATER CONTROL

10 LIFTING METHOD

10 INSTALLATION

13 REFRIGERANT PIPING INSTALLATION

14 INSTALLATION OF WATER PIPE

15 DEVICE PROTECTION UNIT

16 PIPE CONNECTIONS BETWEEN INDOOR

AND OUTSIDE UNIT

24 ELECTRICAL WIRING

32 TEST RUN

36 CAUTION FOR REFRIGERANT LEAK

37 COOLING TOWER APPLIED METHOD

37 WATER SOLENOID VALVE CONTROL

38 INSTALLATION GUIDE FOR HARMONICS

AND FLICKER

6

INSTALLATION PROCESS

ENGLISH

The foundation must be level even

Outside unit foundation work

Avoid short circuits and ensure
sufficient space is allowed for service

Installation of outside unit

Refer to automatic addressing flowchart

Automatic addressing of indoor unit

In the final check for 24hours at 3.8 MPa(38.7 kgf/cm

2

) there

must be no drop in pressure.

Airtight test

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

Electrical work

(connection circuits and drive circuits)

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

Heat insulation work

Make sure airflow is sufficient

Duct work

Adjust to downward gradient

Drain pipe work

Special attention to dryness,
cleanness and tightness

Refrigerant piping work

Check model name to
make sure the fitting
is made correctly

Installation of indoor unit

Take account of gradient
of drain piping

Sleeve and insert work

Make connection clearly between outside, 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%, low airflow

operation is recommended in all the indoor units.

• If the operation of indoor unit is more than 130%, additional re-

frigerant is needed according to the Aheadquarter guidance.

• Over 130%, capacity is same as capacity of 130%, Same re-

mark is valid for power input.

•

Ratio of the running Indoor Units to the Outside: Within 10 ~ 100%

•

A combination operation over 100% cause to reduce each indoor unit capacity.

Combination Ratio(50~200%)

Outside Unit Number Connection Ratio

Single outside units 200%

Double outside units 160%

More than Triple outside units

130%

!

OUTSIDE UNITS INFORMATION

Power Supply : 3Ø, 380V, 60Hz or 3Ø, 380 - 415V, 50Hz
Model Name : ARWN***LAS4

Unit

1 Unit

System Capacity (HP)

8 10 12

Model

Combination Unit

ARWN080LAS4 ARWN100LAS4 ARWN120LAS4

Independent Unit

ARWN080LAS4 ARWN100LAS4 ARWN120LAS4
Refrigerant Precharged Amountkg5.8 5.8 5.8
Maximum Connectable Number of Indoor Units

13 16 20

Net Weight

kg

127 x 1 127 x 1 127 x 1

lbs

280 x 1 280 x 1 280 x 1

Dimensions(WxHxD)

mm

755 × 997 × 500 755 × 997 × 500 755 × 997 × 500

inch

(29-23/32 x 39-1/4 x 19-11/16) x 1

(29-23/32 x 39-1/4 x 19-11/16) x 1 (29-23/32 x 39-1/4 x 19-11/16) x 1

Refrigerant
Connecting Pipes

Liquid

mm(inch)

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

Gas

mm(inch)

22.2(7/8) 22.2(7/8) 25.4(1)

Water Connect­ing Pipes

Inlet

mm

PT40(Internal thread) PT40(Internal thread) PT40(Internal thread)

Outlet

mm

PT40(Internal thread) PT40(Internal thread) PT40(Internal thread)

Drain Outlet

mm

PT20(External thread) PT20(External thread) PT20(External thread)

Temp. range of
Circulation water

Cooling

10°C ~ 45°C(50°F ~ 113°F) 10°C ~ 45°C(50°F ~ 113°F) 10°C ~ 45°C(50°F ~ 113°F)

Heating

-5°C ~ 45°C(23°F ~ 113°F) -5°C ~ 45°C(23°F ~ 113°F) -5°C ~ 45°C(23°F ~ 113°F)

Unit

2 Unit

System Capacity (HP)

Model

Combination Unit

Independent Unit

Refrigerant Precharged Amount

kg

Maximum Connectable Number of Indoor Units

Net Weight

kg
lbs

Dimensions(WxHxD)

mm
inch

Refrigerant
Connecting Pipes

Liquid

mm(inch)

Gas

mm(inch)

Water Connect­ing Pipes

Inlet

mm

Outlet

mm

Drain Outlet

mm

Temp. range of
Circulation water

Cooling
Heating

Unit

1 Unit

System Capacity (HP)

Model

Combination Unit
Independent Unit

Refrigerant Precharged Amount

kg

Maximum Connectable Number of Indoor Units

Net Weight

kg
lbs

Dimensions(WxHxD)

mm
inch

Refrigerant
Connecting Pipes

Liquid

mm(inch)

Gas

mm(inch)

Water Connect­ing Pipes

Inlet

mm

Outlet

mm

Drain Outlet

mm

Temp. range of
Circulation water

Cooling
Heating

18 20
ARWN180LAS4 ARWN200LAS4
ARWN180LAS4 ARWN200LAS4

33

29 32

140 x 1 140 x 1
309 x 1 309 x 1

755 × 997 × 500 755 × 997 × 500

(29-23/32 x 39-1/4 x 19-11/16) x 1 (29-23/32 x 39-1/4 x 19-11/16) x 1

12.7(1/2) 12.7(1/2)

28.58(1-1/8) 28.58(1-1/8)
PT40(Internal thread) PT40(Internal thread)
PT40(Internal thread) PT40(Internal thread)

PT20(External thread) PT20(External thread)

10°C ~ 45°C(50°F ~ 113°F) 10°C ~ 45°C(50°F ~ 113°F)

-5°C ~ 45°C(23°F ~ 113°F) -5°C ~ 45°C(23°F ~ 113°F)

Unit

1 Unit

System Capacity (HP)

Model

Combination Unit
Independent Unit

Refrigerant Precharged Amount

kg

Maximum Connectable Number of Indoor Units

Net Weight

kg
lbs

Dimensions(WxHxD)

mm
inch

Refrigerant
Connecting Pipes

Liquid

mm(inch)

Gas

mm(inch)

Water Connect­ing Pipes

Inlet

mm

Outlet

mm

Drain Outlet

mm

Temp. range of
Circulation water

Cooling
Heating

14 16
ARWN140LAS4 ARWN160LAS4
ARWN140LAS4 ARWN160LAS4

5.8 3
23 26

127 x 1 140 x 1
280 x 1 309 x 1

755 × 997 × 500 755 × 997 × 500

(29-23/32 x 39-1/4 x 19-11/16) x 1 (29-23/32 x 39-1/4 x 19-11/16) x 1

12.7(1/2) 12.7(1/2)

25.4(1) 28.58(1-1/8)
PT40(Internal thread) PT40(Internal thread)
PT40(Internal thread) PT40(Internal thread)

PT20(External thread) PT20(External thread)

10°C ~ 45°C(50°F ~ 113°F) 10°C ~ 45°C(50°F ~ 113°F)

-5°C ~ 45°C(23°F ~ 113°F) -5°C ~ 45°C(23°F ~ 113°F)

22 24 26
ARWN220LAS4 ARWN240LAS4 ARWN260LAS4
ARWN120LAS4 ARWN120LAS4 ARWN140LAS4
ARWN100LAS4 ARWN120LAS4 ARWN120LAS4

5.8 + 5.8 5.8 + 5.8 5.8 + 5.8
35 39 42

127 x 2 127 x 2 127 x 2
280 x 2 280 x 2 280 x 2

(755 × 997 × 500) x 2 (755 × 997 × 500) x 2 (755 × 997 × 500) x 2

(29-23/32 x 39-1/4 x 19-11/16) x 2 (29-23/32 x 39-1/4 x 19-11/16) x 2 (29-23/32 x 39-1/4 x 19-11/16) x 2

19.05(3/4) 19.05(3/4) 19.05(3/4)

34.9(1-3/8) 34.9(1-3/8) 34.9(1-3/8)
PT40(Internal thread) PT40(Internal thread) PT40(Internal thread)
PT40(Internal thread) PT40(Internal thread) PT40(Internal thread)

PT20(External thread) PT20(External thread) PT20(External thread)
10°C ~ 45°C(50°F ~ 113°F) 10°C ~ 45°C(50°F ~ 113°F) 10°C ~ 45°C(50°F ~ 113°F)

-5°C ~ 45°C(23°F ~ 113°F) -5°C ~ 45°C(23°F ~ 113°F) -5°C ~ 45°C(23°F ~ 113°F)

7

ENGLISH

Unit

2 Unit

System Capacity (HP)

Model

Combination Unit

Independent Unit

Refrigerant Precharged Amount

kg

Maximum Connectable Number of Indoor Units

Net Weight

kg
lbs

Dimensions(WxHxD)

mm
inch

Refrigerant
Connecting Pipes

Liquid

mm(inch)

Gas

mm(inch)

Water Connect­ing Pipes

Inlet

mm

Outlet

mm

Drain Outlet

mm

Temp. range of
Circulation water

Cooling
Heating

34 36
ARWN340LAS4 ARWN360LAS4
ARWN200LAS4 ARWN180LAS4
ARWN140LAS4 ARWN180LAS4

3.0 + 5.8 3.0 + 3.0
55 58

(140 x 1) + (127 x 1) 140 x 2
(309 x 1) + (280 x 1) 309 x 2

(755 × 997 × 500) x 2 (755 × 997 × 500) x 2

(29-23/32 x 39-1/4 x 19-11/16) x 2 (29-23/32 x 39-1/4 x 19-11/16) x 2

19.05(3/4) 19.05(3/4)

34.9(1-3/8) 41.3(1-5/8)
PT40(Internal thread) PT40(Internal thread)
PT40(Internal thread) PT40(Internal thread)

PT20(External thread) PT20(External thread)

10°C ~ 45°C(50°F ~ 113°F) 10°C ~ 45°C(50°F ~ 113°F)

-5°C ~ 45°C(23°F ~ 113°F) -5°C ~ 45°C(23°F ~ 113°F)

Unit

2 Unit

System Capacity (HP)

Model

Combination Unit

Independent Unit

Refrigerant Precharged Amount

kg

Maximum Connectable Number of Indoor Units

Net Weight

kg
lbs

Dimensions(WxHxD)

mm
inch

Refrigerant
Connecting Pipes

Liquid

mm(inch)

Gas

mm(inch)

Water Connect­ing Pipes

Inlet

mm

Outlet

mm

Drain Outlet

mm

Temp. range of
Circulation water

Cooling
Heating

38 40
ARWN380LAS4 ARWN400LAS4
ARWN200LAS4 ARWN200LAS4
ARWN180LAS4 ARWN200LAS4

3.0 + 3.0 3.0 + 3.0
61 64

140 x 2 140 x 2
309 x 2 309 x 2

(755 × 997 × 500) x 2 (755 × 997 × 500) x 2

(29-23/32 x 39-1/4 x 19-11/16) x 2 (29-23/32 x 39-1/4 x 19-11/16) x 2

19.05(3/4) 19.05(3/4)

41.3(1-5/8) 41.3(1-5/8)
PT40(Internal thread) PT40(Internal thread)
PT40(Internal thread) PT40(Internal thread)

PT20(External thread) PT20(External thread)

10°C ~ 45°C(50°F ~ 113°F) 10°C ~ 45°C(50°F ~ 113°F)

-5°C ~ 45°C(23°F ~ 113°F) -5°C ~ 45°C(23°F ~ 113°F)

Unit

3 Unit

System Capacity (HP)

Model

Combination Unit

Independent Unit

Refrigerant Precharged Amount

kg

Maximum Connectable Number of Indoor Units

Net Weight

kg

lbs

Dimensions(WxHxD)

mm

inch

Refrigerant
Connecting Pipes

Liquid

mm(inch)

Gas

mm(inch)

Water Connect­ing Pipes

Inlet

mm

Outlet

mm

Drain Outlet

mm

Temp. range of
Circulation water

Cooling
Heating

54 56
ARWN540LAS4 ARWN560LAS4
ARWN200LAS4 ARWN200LAS4
ARWN200LAS4 ARWN180LAS4
ARWN140LAS4 ARWN180LAS4

3.0 + 3.0 + 5.8 3.0 + 3.0 + 3.0
64 64

(140 x 2) + (127 x 1) 140 x 3
(309 x 2) + (280 x 1) 309 x 3

(755 × 997 × 500) x 3 (755 × 997 × 500) x 3

(29-23/32 x 39-1/4 x 19-11/16) x 3 (29-23/32 x 39-1/4 x 19-11/16) x 3

19.05(3/4) 19.05(3/4)

41.3(1-5/8) 41.3(1-5/8)
PT40(Internal thread) PT40(Internal thread)
PT40(Internal thread) PT40(Internal thread)

PT20(External thread) PT20(External thread)

10°C ~ 45°C(50°F ~ 113°F) 10°C ~ 45°C(50°F ~ 113°F)

-5°C ~ 45°C(23°F ~ 113°F) -5°C ~ 45°C(23°F ~ 113°F)

Unit

3 Unit

System Capacity (HP)

Model

Combination Unit

Independent Unit

Refrigerant Precharged Amount

kg

Maximum Connectable Number of Indoor Units

Net Weight

kg

lbs

Dimensions(WxHxD)

mm
inch

Refrigerant
Connecting Pipes

Liquid

mm(inch)

Gas

mm(inch)

Water Connect­ing Pipes

Inlet

mm

Outlet

mm

Drain Outlet

mm

Temp. range of
Circulation water

Cooling
Heating

5860
ARWN580LAS4 ARWN600LAS4
ARWN200LAS4 ARWN200LAS4
ARWN200LAS4 ARWN200LAS4
ARWN180LAS4 ARWN200LAS4

3.0 + 3.0 + 3.0 3.0 + 3.0 + 3.0
64 64

140 x 3 140 x 3
309 x 3 309 x 3

(755 × 997 × 500) x 3 (755 × 997 × 500) x 3

(29-23/32 x 39-1/4 x 19-11/16) x 3 (29-23/32 x 39-1/4 x 19-11/16) x 3

19.05(3/4) 19.05(3/4)

41.3(1-5/8) 41.3(1-5/8)
PT40(Internal thread) PT40(Internal thread)
PT40(Internal thread) PT40(Internal thread)

PT20(External thread) PT20(External thread)

10°C ~ 45°C(50°F ~ 113°F) 10°C ~ 45°C(50°F ~ 113°F)

-5°C ~ 45°C(23°F ~ 113°F) -5°C ~ 45°C(23°F ~ 113°F)

Unit

3 Unit

System Capacity (HP)

Model

Combination Unit

Independent Unit

Refrigerant Precharged Amount

kg

Maximum Connectable Number of Indoor Units

Net Weight

kg
lbs

Dimensions(WxHxD)

mm
inch

Refrigerant
Connecting Pipes

Liquid

mm(inch)

Gas

mm(inch)

Water Connect­ing Pipes

Inlet

mm

Outlet

mm

Drain Outlet

mm

Temp. range of
Circulation water

Cooling
Heating

42 44 46
ARWN420LAS4 ARWN440LAS4 ARWN460LAS4
ARWN200LAS4 ARWN200LAS4 ARWN200LAS4
ARWN120LAS4 ARWN120LAS4 ARWN140LAS4
ARWN100LAS4 ARWN120LAS4 ARWN120LAS4

3.0 + 5.8 + 5.8 3.0 + 5.8 + 5.8 3.0 + 5.8 + 5.8
64 64 64

(140 x 1) + (127 x 2) (140 x 1) + (127 x 2) (140 x 1) + (127 x 2)
(309 x 1) + (280 x 2) (309 x 1) + (280 x 2) (309 x 1) + (280 x 2)

(755 × 997 × 500) x 3 (755 × 997 × 500) x 3 (755 × 997 × 500) x 3

(29-23/32 x 39-1/4 x 19-11/16) x 3 (29-23/32 x 39-1/4 x 19-11/16) x 3 (29-23/32 x 39-1/4 x 19-11/16) x 3

19.05(3/4) 19.05(3/4) 19.05(3/4)

41.3(1-5/8) 41.3(1-5/8) 41.3(1-5/8)
PT40(Internal thread) PT40(Internal thread) PT40(Internal thread)
PT40(Internal thread) PT40(Internal thread) PT40(Internal thread)

PT20(External thread) PT20(External thread) PT20(External thread)
10°C ~ 45°C(50°F ~ 113°F) 10°C ~ 45°C(50°F ~ 113°F) 10°C ~ 45°C(50°F ~ 113°F)

-5°C ~ 45°C(23°F ~ 113°F) -5°C ~ 45°C(23°F ~ 113°F) -5°C ~ 45°C(23°F ~ 113°F)

Unit

3 Unit

System Capacity (HP)

Model

Combination Unit

Independent Unit

Refrigerant Precharged Amount

kg

Maximum Connectable Number of Indoor Units

Net Weight

kg

lbs

Dimensions(WxHxD)

mm
inch

Refrigerant
Connecting Pipes

Liquid

mm(inch)

Gas

mm(inch)

Water Connect­ing Pipes

Inlet

mm

Outlet

mm

Drain Outlet

mm

Temp. range of
Circulation water

Cooling
Heating

48 50 52
ARWN480LAS4 ARWN500LAS4 ARWN520LAS4
ARWN200LAS4 ARWN200LAS4 ARWN200LAS4
ARWN140LAS4 ARWN160LAS4 ARWN180LAS4
ARWN140LAS4 ARWN140LAS4 ARWN140LAS4

3.0 + 5.8 + 5.8 3.0 + 3.0 + 5.8 3.0 + 3.0 + 5.8
64 64 64

(140 x 1) + (127 x 2) (140 x 2) + (127 x 1) (140 x 2) + (127 x 1)
(309 x 1) + (280 x 2) (309 x 2) + (280 x 1) (309 x 2) + (280 x 1)

(755 × 997 × 500) x 3 (755 × 997 × 500) x 3 (755 × 997 × 500) x 3

(29-23/32 x 39-1/4 x 19-11/16) x 3 (29-23/32 x 39-1/4 x 19-11/16) x 3 (29-23/32 x 39-1/4 x 19-11/16) x 3

19.05(3/4) 19.05(3/4) 19.05(3/4)

41.3(1-5/8) 41.3(1-5/8) 41.3(1-5/8)
PT40(Internal thread) PT40(Internal thread) PT40(Internal thread)
PT40(Internal thread) PT40(Internal thread) PT40(Internal thread)
PT20(External thread) PT20(External thread) PT20(External thread)

10°C ~ 45°C(50°F ~ 113°F) 10°C ~ 45°C(50°F ~ 113°F) 10°C ~ 45°C(50°F ~ 113°F)

-5°C ~ 45°C(23°F ~ 113°F) -5°C ~ 45°C(23°F ~ 113°F) -5°C ~ 45°C(23°F ~ 113°F)

Unit

4 Unit

System Capacity (HP)

Model

Combination Unit

Independent Unit

Refrigerant Precharged Amount

kg

Maximum Connectable Number of Indoor Units

Net Weight

kg

lbs

Dimensions(WxHxD)

mm
inch

Refrigerant
Connecting Pipes

Liquid

mm(inch)

Gas

mm(inch)

Water Connect­ing Pipes

Inlet

mm

Outlet

mm

Drain Outlet

mm

Temp. range of
Circulation water

Cooling
Heating

62 64 66
ARWN620LAS4 ARWN640LAS4 ARWN660LAS4
ARWN200LAS4 ARWN200LAS4 ARWN200LAS4
ARWN200LAS4 ARWN200LAS4 ARWN200LAS4
ARWN120LAS4 ARWN120LAS4 ARWN140LAS4
ARWN100LAS4 ARWN120LAS4 ARWN120LAS4

3.0 + 3.0 + 5.8 + 5.8 3.0 + 3.0 + 5.8 + 5.8 3.0 + 3.0 + 5.8 + 5.8
64 64 64

(140 x 2) + (127 x 2) (140 x 2) + (127 x 2) (140 x 2) + (127 x 2)
(309 x 2) + (280 x 2) (309 x 2) + (280 x 2) (309 x 2) + (280 x 2)

(755 × 997 × 500) x 4 (755 × 997 × 500) x 4 (755 × 997 × 500) x 4

(29-23/32 x 39-1/4 x 19-11/16) x 4 (29-23/32 x 39-1/4 x 19-11/16) x 4 (29-23/32 x 39-1/4 x 19-11/16) x 4

22.2(7/8) 22.2(7/8) 22.2(7/8)

44.5(1-3/4) 44.5(1-3/4) 53.98(2-1/8)
PT40(Internal thread) PT40(Internal thread) PT40(Internal thread)
PT40(Internal thread) PT40(Internal thread) PT40(Internal thread)

PT20(External thread) PT20(External thread) PT20(External thread)
10°C ~ 45°C(50°F ~ 113°F) 10°C ~ 45°C(50°F ~ 114°F) 10°C ~ 45°C(50°F ~ 115°F)

-5°C ~ 45°C(23°F ~ 113°F) -5°C ~ 45°C(23°F ~ 114°F) -5°C ~ 45°C(23°F ~ 115°F)

Unit

2 Unit

System Capacity (HP)

Model

Combination Unit

Independent Unit

Refrigerant Precharged Amount

kg

Maximum Connectable Number of Indoor Units

Net Weight

kg
lbs

Dimensions(WxHxD)

mm
inch

Refrigerant
Connecting Pipes

Liquid

mm(inch)

Gas

mm(inch)

Water Connect­ing Pipes

Inlet

mm

Outlet

mm

Drain Outlet

mm

Temp. range of
Circulation water

Cooling
Heating

2830 32
ARWN280LAS4 ARWN300LAS4 ARWN320LAS4
ARWN140LAS4 ARWN160LAS4 ARWN180LAS4
ARWN140LAS4 ARWN140LAS4 ARWN140LAS4

5.8 + 5.8 3.0 + 5.8 3.0 + 5.8
45 49 52

127 x 2 (140 x 1) + (127 x 1) (140 x 1) + (127 x 1)
280 x 2 (309 x 1) + (280 x 1) (309 x 1) + (280 x 1)

(755 × 997 × 500) x 2 (755 × 997 × 500) x 2 (755 × 997 × 500) x 2

(29-23/32 x 39-1/4 x 19-11/16) x 2 (29-23/32 x 39-1/4 x 19-11/16) x 2 (29-23/32 x 39-1/4 x 19-11/16) x 2

19.05(3/4) 19.05(3/4) 19.05(3/4)

34.9(1-3/8) 34.9(1-3/8) 34.9(1-3/8)
PT40(Internal thread) PT40(Internal thread) PT40(Internal thread)
PT40(Internal thread) PT40(Internal thread) PT40(Internal thread)
PT20(External thread) PT20(External thread) PT20(External thread)

10°C ~ 45°C(50°F ~ 113°F) 10°C ~ 45°C(50°F ~ 113°F) 10°C ~ 45°C(50°F ~ 113°F)

-5°C ~ 45°C(23°F ~ 113°F) -5°C ~ 45°C(23°F ~ 113°F) -5°C ~ 45°C(23°F ~ 113°F)

8

ENGLISH

SELECT THE BEST LOCATION

Select space for installing outside unit , which will meet the following
conditions:

- With strength which bears weight of unit

- With space for air passage and service work
Don't install the unit at the space where generation, inflow, stagna­tion, and leak of combustible gas is expected.

- Avoid unit installation in a place where acidic solution and spray (sul­fur) are often used.

- Location with no leakage of combustible gas

- Recommend the outside unit to be installed within 0~40°C.

- Location with installation or service work space (Refer to required
space)

- Do not use the outside unit under any special environment where oil,
steam and sulfuric gas exist.

- Install in a separate machine room not exposed to external air
Establish an anti-freeze plan for the water supply when the product is
stopped during the winter.
Install the product so that the noise from the machine room is not
transferred outsides

- The floor of the machine room must be water proof.

- Drainage must be installed in the machine room to process the water
drainage.

- Install a floor slope to make the drainage smooth.

- Avoid installing the outside unit in the location with following condi­tions.

- Location where corrosive gas such as acidic gas is generated.
(It may cause the refrigerant leakage by corrosion of the pipe.)

- Location where electromagnetic waves happen.
(It may cause the abnormal operation by control parts disorder.)

- Location to be able to leak the combustible gas

- Location with carbon fiber or combustible dust.

- Location with the combustible material like thinner or gasoline.
(It may cause a fire by leaking the gas near the product.)

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.

!

CAUTION

• Do not install Multi V water outdoors. Always install indoor like
machine room.

• Inverter product may generate electric noise. Keep the body
from computer, stereo etc. at enough distance. Specially leave
space from indoor remote controller to shoes electric devices at
the above 3m in weak electric wave area. Insert the power
cable and other wire into separate conduit.

!

Unit

4 Unit

System Capacity (HP)

Model

Combination Unit

Independent Unit

Refrigerant Precharged Amount

kg

Maximum Connectable Number of Indoor Units

Net Weight

kg
lbs

Dimensions(WxHxD)

mm
inch

Refrigerant
Connecting Pipes

Liquid

mm(inch)

Gas

mm(inch)

Water Connect­ing Pipes

Inlet

mm

Outlet

mm

Drain Outlet

mm

Temp. range of
Circulation water

Cooling
Heating

74 76
ARWN740LAS4 ARWN760LAS4
ARWN200LAS4 ARWN200LAS4
ARWN200LAS4 ARWN200LAS4
ARWN200LAS4 ARWN180LAS4
ARWN140LAS4 ARWN180LAS4

3.0 + 3.0 + 3.0 + 5.8 3.0 + 3.0 + 3.0 + 3.0
64 64

(140 x 3) + (127 x 1) 140 x 4
(309 x 3) + (280 x 1) 309 x 4

(755 × 997 × 500) x 4 (755 × 997 × 500) x 4

(29-23/32 x 39-1/4 x 19-11/16) x 4 (29-23/32 x 39-1/4 x 19-11/16) x 4

22.2(7/8) 22.2(7/8)

53.98(2-1/8) 53.98(2-1/8)
PT40(Internal thread) PT40(Internal thread)
PT40(Internal thread) PT40(Internal thread)

PT20(External thread) PT20(External thread)

10°C ~ 45°C(50°F ~ 119°F) 10°C ~ 45°C(50°F ~ 120°F)

-5°C ~ 45°C(23°F ~ 119°F) -5°C ~ 45°C(23°F ~ 120°F)

Unit

4 Unit

System Capacity (HP)

Model

Combination Unit

Independent Unit

Refrigerant Precharged Amount

kg

Maximum Connectable Number of Indoor Units

Net Weight

kg
lbs

Dimensions(WxHxD)

mm
inch

Refrigerant
Connecting Pipes

Liquid

mm(inch)

Gas

mm(inch)

Water Connect­ing Pipes

Inlet

mm

Outlet

mm

Drain Outlet

mm

Temp. range of
Circulation water

Cooling
Heating

78 80
ARWN780LAS4 ARWN800LAS4
ARWN200LAS4 ARWN200LAS4
ARWN200LAS4 ARWN200LAS4
ARWN200LAS4 ARWN200LAS4
ARWN180LAS4 ARWN200LAS4

3.0 + 3.0 + 3.0 + 3.0 3.0 + 3.0 + 3.0 + 3.0
64 64

140 x 4 140 x 4
309 x 4 309 x 4

(755 × 997 × 500) x 4 (755 × 997 × 500) x 4

(29-23/32 x 39-1/4 x 19-11/16) x 4 (29-23/32 x 39-1/4 x 19-11/16) x 4

22.2(7/8) 22.2(7/8)

53.98(2-1/8) 53.98(2-1/8)
PT40(Internal thread) PT40(Internal thread)
PT40(Internal thread) PT40(Internal thread)

PT20(External thread) PT20(External thread)

10°C ~ 45°C(50°F ~ 121°F) 10°C ~ 45°C(50°F ~ 122°F)

-5°C ~ 45°C(23°F ~ 121°F) -5°C ~ 45°C(23°F ~ 122°F)

Unit

4 Unit

System Capacity (HP)

Model

Combination Unit

Independent Unit

Refrigerant Precharged Amount

kg

Maximum Connectable Number of Indoor Units

Net Weight

kg
lbs

Dimensions(WxHxD)

mm
inch

Refrigerant
Connecting Pipes

Liquid

mm(inch)

Gas

mm(inch)

Water Connect­ing Pipes

Inlet

mm

Outlet

mm

Drain Outlet

mm

Temp. range of
Circulation water

Cooling
Heating

68 70 72
ARWN680LAS4 ARWN700LAS4 ARWN720LAS4
ARWN200LAS4 ARWN200LAS4 ARWN200LAS4
ARWN200LAS4 ARWN200LAS4 ARWN200LAS4
ARWN140LAS4 ARWN160LAS4 ARWN180LAS4
ARWN140LAS4 ARWN140LAS4 ARWN140LAS4

3.0 + 3.0 + 5.8 + 5.8 3.0 + 3.0 + 3.0 + 5.8 3.0 + 3.0 + 3.0 + 5.8
64 64 64

(140 x 2) + (127 x 2) (140 x 3) + (127 x 1) (140 x 3) + (127 x 1)
(309 x 2) + (280 x 2) (309 x 3) + (280 x 1) (309 x 3) + (280 x 1)

(755 × 997 × 500) x 4 (755 × 997 × 500) x 4 (755 × 997 × 500) x 4

(29-23/32 x 39-1/4 x 19-11/16) x 4 (29-23/32 x 39-1/4 x 19-11/16) x 4 (29-23/32 x 39-1/4 x 19-11/16) x 4

22.2(7/8) 22.2(7/8) 22.2(7/8)

53.98(2-1/8) 53.98(2-1/8) 53.98(2-1/8)
PT40(Internal thread) PT40(Internal thread) PT40(Internal thread)
PT40(Internal thread) PT40(Internal thread) PT40(Internal thread)

PT20(External thread) PT20(External thread) PT20(External thread)

10°C ~ 45°C(50°F ~ 116°F) 10°C ~ 45°C(50°F ~ 117°F) 10°C ~ 45°C(50°F ~ 118°F)

-5°C ~ 45°C(23°F ~ 116°F) -5°C ~ 45°C(23°F ~ 117°F) -5°C ~ 45°C(23°F ~ 118°F)

9

ENGLISH

INSTALLATION SPACE

Individual Installation Water control

Collective / Continuous Installation

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

: Service area

* In case of the water pipe passing side product, please make suffi-

cient service place to avoid occurring between water pipe and prod­uct side.

Space required for collective installation and continuous installation as
shown below considering passage for air and people.

: Service area

Two Layer Installation

Space required for two layer installation as shown below considering
passage for air and people.

: Service area

- Keep the water temperature between 10~45°C. Other it may cause
the breakdown.
Standard water supply temperature is 30°C for Cooling and 20°C for
heating.

- Properly control the water velocity. Otherwise it may cause the noise,
pipe vibration or pipe contraction, expansion according to the temper­ature. Use the same water pipe size connected with the product or
more.

- Refer to the water source pipe diameter and water velocity table
below. As the water velocity is fast, air bubble will increase.

- Be careful of the water purity control. Otherwise it may cause the
breakdown due to water pipe corrosion.
(Refer to 'Standard Table for Water Purity Control')

- In case the water temperature is above 40°C, it is good to prevent the
corrosion by adding the anticorrosive agent.

- Install the pipe, valve and gauge sensor in the space where it is easy
to maintain. Install the water valve in the low position for drain, if re­quired.

- Be careful not to let air in. If so, the water velocity will be unstable in
the circulation, pump efficiency will also decrease and may cause the
piping vibration. Therefore, install the air purge where it may generate
the air.

- Choose the following anti freezing methods. Otherwise, it will be dan­gerous for the pipe to break in the winter.

Circulate the water with the pump before dropping the temperature.
Keep the normal temperature by boiler.
When the cooling tower is not operated for a long time, drain the

water in the cooling tower.
Use an anti-freeze. (For using an anti freeze, change the DIP switch

on main PCB in outside unit.)
Refer to the additive amount about freezing temperature as in the

table given below.

- In addition to anti freeze, it may cause the change of the pressure in
the water system and the low performance of the product.

- Make sure to use the closed cooling type tower.
When applying the open type cooling tower, use a 2nd heat ex­changer to make the water supply system a closed type system.

WATER CONTROL

Service area

(Front)

Diameter (mm) Velocity range (m/s)

< 50 0.6 ~ 1.2

50 ~ 100 1.2 ~ 2.1

100 < 2.1 ~ 2.7

Anti freeze type

Minimum temperature for anti freezing (°C)

0 -5 -10 -15 -20 -25

Ethylene glycol (%) 0 12 20 30 - -

Propylene glycol (%) 0 17 25 33 - -

Methanol (%) 0 6 12 16 24 30

Standard table for water purity control

The water may contain many foreign substances and hence may influ­ence the performance and lifetime of the product due to the corrosion
of the condenser and water pipe. (Use water source that complies
with the below standard table for water purity control.)

If you use water supply other than the tap water to supply the water
for the cooling tower, you must do a water quality inspection.

- If you use the closed cooling tower, the water quality must be con­trolled in accordance with the following standard table.
If you do not control the water quality in accordance with the follow­ing standard water quality table, it can cause performance deteriora­tion to the air conditioner and severe problem to the product

(unit : mm)

H-Beam Support

<Front View><Top View>

100 100997

Water pipe
installation
space

20

Product

(Outside unit)

Service area

Service area

(Front)

(Front)

350

755

20

600 500

100

(Unit : mm)

20

(Outside unit)

350

20

Product

Service area

(Front)

755

100

Product

(Outside unit)

Service area

(Front)

350

755

(Outside unit)

Service area

350

100

<Top view>

Product

(Front)

755

100

Product

(Outside unit)

Service area

(Front)

350

755

600 500

100

(unit : mm)

H-Beam Support

<Front View>

997

100
100

997

100

10

ENGLISH

CAUTION

Be very careful while carrying the product.

•

Do not have only one person carry product if it is more than 20kg.

• PP bands are used to pack some products.
Do not use them as a means for transportation because they are
dangerous.

• Tear the plastic packaging bag and scrap it so that children can­not play with it.
Otherwise plastic packaging bag may suffocate children.

• When carrying in outside unit, be sure to support it at four points.
Carrying in and lifting with 3-point support may make outside unit
unstable, resulting in a fall of it.

• 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.

!

Items

pH(25°C)

Conductivity[25°C](mS/m)

Chlorine ion(mg CI-/l)

Sulfuric acid ion(mg SO

2

-

/l)

Acid demand[pH 4.8] (mg SiO

2/l)

Total hardness(mg SiO

2/l)

Ca hardness(mg CaCO

3/l)

Ion silica(mg SiO

2/l)

Fe(mg Fe/l)

Copper(mg Cu/l)

Sulfuric acid ion(mg S

2

/l)

Ammonium ion(mg NH

4/l)

Residual chlorine(mg Cl/l)

Free carbon dioxide(mg CO

2/l)

Stability index

7.0~8.0
Below 30
Below 50
Below 50
Below 50
Below 70
Below 50
Below 30

Below 1.0
Below 1.0

Must not be detected

Below 0.3

Below 0.25

Below 0.4

-

Below 0.3

Below 0.1

Must not be detected

Below 0.1
Below 0.3
Below 4.0

-

7.0~8.0
Below 30
Below 50
Below 50
Below 50
Below 70
Below 50
Below 30

O
O
O
O

-

-

-

-

O
O
O
O
O
O
O

O

-

-

-

-

-

O

O
O

­O
O
O
O
O

Closed type

Basic Item

Reference Item

Effect

Circulating water Supplemented water Corrosion Scale

4

+

Reference

• The "O" mark for corrosion and scale means that there is possi­bility of occurrence.

• When the water temperature is 40°C or above or when un­coated iron is exposed to the water, it can result in corrosion.
Therefore adding anti-corrosion agent or removing the air can be
very effective.

• In case of using the closed type cooling tower, the cooling water
and supplementing water must satisfy the water quality criteria
of closed type system in the table.

• Supplementing water and supplied water must be supplied with
tap water, industrial water and underground water excluding fil­tered water, neutral water, soft water etc.

• 15 items in the table are general causes of corrosion and scale.

LIFTING METHOD

- When carrying the unit suspended, 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 fours points so that impact
is not applied to the unit.

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

The location of the Anchor bolts

- Install at places where it can endure the weight and vibration/noise of
the outside unit .

- The outside unit supports at the bottom shall have width of at least
100mm under the Unit’s legs before being fixed.

- The outside unit supports should have minimum height of 200mm.

- Anchor bolts must be inserted at least 75mm.

The location of

anchor bolt

62

62

631

755

(Unit : mm)

500

472

INSTALLATION

Foundation for Installation

- Fix the unit tightly with bolts as shown below so that unit will not fall
down due to earthquake or gust.

- Use the H-beam support as a base support

- Noise and vibration may occur from the floor or wall since vibration is
transferred through the installation part depending on installation sta­tus. Thus, use anti-vibration materials (cushion pad) fully (The base
pad shall be more than 200mm).

At least
200mm

At least 100mm

At least 100mm

At least 100mm

At least 100mm

Sub line

A

40° or less
Rope supporter

B

11

ENGLISH

Ⓐ 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 outside 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 outside 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 outside 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 out-

side unit .
If the support strength is not enough, the outside unit may
drop and hurt people.

• Install where the outside unit may not fall in strong wind or

earthquake.
If there is a fault in the supporting conditions, the outside 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 outside 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 outside 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

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·m)

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

±2

90°

45°

±

2

A

R=0.4~0.8

12

ENGLISH

Opening shutoff valve

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

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.

Heat insulation

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 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

3 Standard refrigerant pipe EPDM heat insulation material thickness.

Classification

Air conditioned location

Non-air conditioned location

Note1)

General location

Note2)

Special location

Note3)

General location

Note4)

Negative condition

Liquid

pipe

Ø6.35

Above t9 Above t9 Above t9 Above t9

Ø9.52

Above Ø12.7 Above t13 Above t13 Above t13 Above t13

Gas

pipe

Ø9.52

Above t13

Above t19 Above t19

Above t25

Ø12.7

Ø15.88

Ø19.05

Ø22.22

Ø25.4

Ø28.58

Above t19

Ø31.75

Above t25 Above t25

Ø34.9

Ø38.1

Ø44.45

Note 1) General location: When the pipe passes through indoors in

which the indoor unit is operated

- Apartment, classroom, office, mall, hospital, office-tel etc.

Note 2) Special location

1 When the location is air conditioned but has severe temper-

ature/humidity difference due to high ceiling

- Church, auditorium, theater, lobby etc.

2 When the location is air conditioned but the internal temper-

ature/humidity of the ceiling finishing is high

- Bathroom/swimming pool locker room etc.
(Building with roof ceiling of sandwich assembly type)

Note 3) General location: When the pipe passes indoors where the in-

door unit is not operated

- Hall way etc. (Dormitory, school, office-tel)

Note 4) Negative condition: When below conditions 1 and 2 are met.

1 When the pipe passes indoors where the indoor unit is not

operated

2 When the humidity is high, regionally, and there is no air

flow in the pipe passing area

- When installing the outside unit within the outside pipe
tray or at a location where it is ok to have freezes, apply
13t.

- If you are not sure with the selection of heat insulation ma­terial, coordinate with the supervision or HQ.

- The thickness of the above heat insulation material is
based on the heat conductivity of 0.088W/m°C.

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)