LG ARUN072BTE4 INSTALLATION MANUAL

P/NO : MFL68460404

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.

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ENGLISH

FRANÇAIS

ESPAÑOL

• 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 :

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:

TIPS FOR SAVING ENERGY

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TIPS FOR SAVING ENERGY

IMPORTANT SAFETY INSTRUCTIONS

ENGLISH

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. Installation of all field wiring and components MUST conform with local building codes or, in the absence of local codes, with the National Electrical Code 70 and the National Building Construction and Safety Code or Canadian Electrical code and National Building Code of Canada.

• 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, 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 mal-

function 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 ex-

ceeded. 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.

IMPORTANT SAFETY INSTRUCTIONS

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IMPORTANT SAFETY INSTRUCTIONS

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CAUTION

Installation

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

- Low refrigerant levels may cause failure of

product.

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

- It may cause a problem for your neighbors.

• Keep level even when installing the product.

- To avoid vibration or water leakage.

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

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

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

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

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

- There is risk of damage or loss of property.

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

- It can cause the injury, such as cutting the finger. Also the damaged fin may result in degradation of capacity.

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

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

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

- It may cause corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could

cause product malfunction or inefficient operation.

Operation

• Do not use the air conditioner in special environments.

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

• Do not block the inlet or outlet.

- It may cause failure of appliance or accident.

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

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

• 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 per-

sonal 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 20kg(44lbs).

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.

IMPORTANT SAFETY INSTRUCTIONS

ENGLISH

• Safely dispose of the packing materials.

Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries.

Tear apart and throw away plastic packaging bags so that children may not play with them. If children play with a plastic bag which was not torn apart, they face the risk of suffocation.

• Turn on the power at least 6 hours before starting operation.

- Starting operation immediately after turning on the main power switch can result in severe damage to internal parts. Keep the power switch turned on during the operational season.

• Do not touch any of the refrigerant piping during and after operation.

- It can cause a burn or frostbite.

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

- Rotating, hot, or high-voltage parts can cause injuries.

• Do not directly turn off the main power switch after stopping operation.

- Wait at least 5 minutes before turning off the main power switch. Otherwise it may result in water leakage or other problems.

•

Auto-addressing should be done in condition of connecting the power of all indoor and outdoour units. Auto-addressing should also be done in case of changing the indoor unit PCB.

• Use a firm stool or ladder when cleaning or maintaining the air conditioner.

- Be careful and avoid personal injury.

• Do not insert hands or other objects through the air inlet or outlet while the air conditioner is plugged in.

- There are sharp and moving parts that could cause personal injury.

2 TIPS FOR SAVING

ENERGY

3 IMPORTANT SAFETY

INSTRUCTIONS

8 INSTALLATION

PROCESS

9 OUTDOOR UNITS

INFORMATION

17 ALTERNATIVE REFRIG-

ERANT R410A

18 SELECT THE BEST

LOCATION

19 INSTALLATION SPACE

19 Individual Installation

21 LIFTING METHOD 22 INSTALLATION

22 The location of the Anchor bolts 23 Foundation for Installation 24 Preparation of Piping 27

Plumbing materials and storage methods

29 REFRIGERANT PIPING

INSTALLATION

29 Precautions on Pipe connection / Valve

operation

30 PIPE CONNECTIONS

BETWEEN INDOOR AND OUTDOOR UNIT

30 Preparation Work 31 Pipe Drawing Out during Single / Series

connection

33 Refrigerant piping system

46 Refrigerant charging 47 Distribution Method 48 Branch pipe Fitting 52 Leak Test and Vacuum drying 54 Vacuum Mode 55 Thermal insulation of refrigerant piping

56 ELECTRICAL WIRING

56 Caution 58 Control box and connecting position of

wiring

59 Communication and Power Cables 60 Wiring of main power supply and

equipment capacity

61 Field Wiring(3Ø, 208/230V) 67 Field Wiring(3Ø, 460V) 76 Checking the setting of outdoor units 77 Automatic Addressing 80 Group Number setting 81 Cool & Heat selector 82 Static pressure compensation mode 83 Night Low Noise Function 84 Overall defrost mode 85 Setting the ODU address 86 Snow removal & rapid defrost 87 Target pressure adjusting 88 Self-Diagnosis Function

91 CAUTION FOR

REFRIGERANT LEAK

91 Introduction 91 Checking procedure of limiting

concentration

93 INSTALLATION GUIDE

AT THE SEASIDE

94 OUTDOOR UNIT (ODU)

INSTALLATION DETAILS FOR (3) FOAM SCREW PROTECTOR PADS

TABLE OF CONTENTS

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INSTALLATION PROCESS

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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 wall thickness of the piping should comply with the relevant local and national regulations for the designed pressure 3.8Mpa(551.1psi).

• Since R410A is a mixed refrigerant, the required additional refrigerant must be charged in its liquid state.(If the refrigerant is charged in its gaseous state, its composition changes and the system will not work properly.)

INSTALLATION PROCESS

Determination of division work

Preparation of contract drawings

Sleeve and insert work

Installation of indoor unit

Refrigerant piping work

Drain pipe work

Duct work

Heat insulation work

Electrical work

(connection circuits and drive circuits)

Airtight test

Vacuum drying

Additional charge of refrigerant

Fit facing panels

Indicate clearly who will be responsible for switch setting.

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

Take account of gradient of drain piping

Check model name to make sure the ﬁtting is made correctly

Special attention to dryness, cleanness and tightness

Adjust to downward gradient

Make sure airﬂow is sufﬁcient

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

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

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

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

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

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

Outdoor unit foundation work

Installation of outdoor unit

) there must be no drop in pressure.

The foundation must be level even

Avoid short circuits and ensure sufﬁcient space is allowed for service

Automatic addressing of indoor unit

Test run adjustment

Transfer to customer with explanation

Refer to automatic addressing ﬂowchart Preheat the crank case with the electrical heater for more than 6 hours.

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

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

OUTDOOR UNITS INFORMATION

ENGLISH

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.

• The number of ( ) means the number of Max. connectable indoor units, when the connected capacity of indoor units is in the table above.

Combination Ration

Outdoor Number Connection Capacity

Single outdoor units 130%

Double outdoor units 130%

Triple outdoor units 130%

OUTDOOR UNITS INFORMATION

Chassis

UX3 UX3

14 18

Ton

12 14

Model Name

Combination Unit

ARUN144BTE4 ARUN168BTE4

Independent Unit

Refrigerant

Refrigerant name

R410A R410A

Control

EEV EEV

Number of maximum connectable indoor units

23 29

Net Weight

(285 × 1) (285 × 1)

lbs

(628 × 1) (628 × 1)

Pipe Connections

Liquid Pipes mm(inch)

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

Low Pressure Gas Pipes

mm(inch)

28.58(1 1/8) 28.58(1 1/8)

Chassis

UX2 UX3 UX3

8 10 12

Ton

6 8 10

Model Name

Combination Unit

ARUN072BTE4 ARUN096BTE4 ARUN121BTE4

Independent Unit

Refrigerant

Refrigerant name

R410A R410A R410A

Control

EEV EEV EEV

Number of maximum connectable indoor units

13 16 20

Net Weight

(195 × 1) (245 × 1) (245 × 1)

lbs

(430 × 1) (540 × 1) (540 × 1)

Pipe Connections

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)

Model Name : ARUN***BTE4

Power Supply Outdoor Unit (3Ø, 208/230V, 60Hz)

OUTDOOR UNITS INFORMATION

ENGLISH

Chassis

UX3+UX3 UX3+UX3

24 26

Ton

20 22

Model Name

Combination Unit

ARUN240BTE4 ARUN264BTE4

Independent Unit

ARUN144BTE4 ARUN144BTE4 ARUN096BTE4 ARUN121BTE4

Refrigerant

Refrigerant name

R410A R410A

Control

EEV EEV

Number of maximum connectable indoor units

39 42

Net Weight

(245 × 1) + (285 × 1) (245 × 1) + (285 × 1)

lbs

(540 × 1) + (628 × 1) (540 × 1) + (628 × 1)

Pipe Connections

Liquid Pipes mm(inch)

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

Low Pressure Gas Pipes

mm(inch)

34.9(1 3/8) 34.9(1 3/8)

Chassis

UX2+UX3 UX2+UX3

20 22

Ton

16 18

Model Name

Combination Unit

ARUN192BTE4 ARUN216BTE4

Independent Unit

ARUN121BTE4 ARUN144BTE4 ARUN072BTE4 ARUN072BTE4

Refrigerant

Refrigerant name

R410A R410A

Control

EEV EEV

Number of maximum connectable indoor units

32 35

Net Weight

(195 × 1) + (245 × 1) (195 × 1) + (285 × 1)

lbs

(430 × 1) + (540 × 1) (430 × 1) + (628 × 1)

Pipe Connections

Liquid Pipes mm(inch)

15.88(5/8) 15.88(5/8)

Low Pressure Gas Pipes

mm(inch)

28.58(1 1/8) 28.58(1 1/8)

Chassis

UX3+UX3 UX2+UX3+UX3

28 32

Ton

24 26

Model Name

Combination Unit

ARUN288BTE4 ARUN312BTE4

Independent Unit

ARUN144BTE4 ARUN144BTE4 ARUN144BTE4 ARUN096BTE4

ARUN072BTE4

Refrigerant

Refrigerant name

R410A R410A

Control

EEV EEV

Number of maximum connectable indoor units

45 52

Net Weight

(285 × 2)

(195 × 1) + (245 × 1) + (285 × 1)

lbs

(628 × 2)

(430 × 1) + (540 × 1) + (628 × 1)

Pipe Connections

Liquid Pipes mm(inch)

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

Low Pressure Gas Pipes

mm(inch)

34.9(1 3/8) 34.9(1 3/8)

OUTDOOR UNITS INFORMATION

ENGLISH

Chassis

UX3+UX3

UX3+UX3+UX3

Ton

Model Name

Combination Unit

ARUN313BTE4

ARUN336BTE4

Independent Unit

ARUN168BTE4

ARUN144BTE4

ARUN096BTE4 ARUN096BTE4

Refrigerant

Refrigerant name

R410A

Control

EEV

Number of maximum connectable indoor units

Net Weight

(285 × 2)

(245 × 2) + (285 × 1)

lbs

(628 × 2)

(540 × 2) + (628 × 1)

Pipe Connections

Liquid Pipes mm(inch)

19.05(3/4)

Low Pressure Gas Pipes

mm(inch)

34.9(1 3/8)

Chassis

UX3 UX3+UX3+UX3

14 38

Ton

12 32

Model Name

Combination Unit

ARUN145BTE4 ARUN384BTE4

Independent Unit

Combination only (Not for 1Unit)

ARUN096BTE4 ARUN145BTE4 ARUN145BTE4

Refrigerant

Refrigerant name

R410A R410A

Control

EEV EEV

Number of maximum connectable indoor units

23 61

Net Weight

(305 × 1) (245 x 1) + (305 x 2)

lbs

(672 × 1) (540 x 1) + (672 x 2)

Pipe Connections

Liquid Pipes mm(inch)

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

Low Pressure Gas Pipes

mm(inch)

28.58(1 1/8) 41.3(1 5/8)

Chassis

UX3+UX3

UX3+UX3+UX3

Ton

Model Name

Combination Unit

ARUN337BTE4

ARUN360BTE4

Independent Unit

ARUN168BTE4

ARUN144BTE4

ARUN168BTE4

ARUN121BTE4 ARUN096BTE4

Refrigerant

Refrigerant name

R410A

Control

EEV

Number of maximum connectable indoor units

Net Weight

(285 × 2)

(245 × 2) + (285 × 1)

lbs

(628 × 2)

(540 × 2) + (628 × 1)

Pipe Connections

Liquid Pipes mm(inch)

19.05(3/4)

Low Pressure Gas Pipes

mm(inch)

34.9(1 3/8)

41.3(1 5/8)

OUTDOOR UNITS INFORMATION

ENGLISH

Chassis

UX3+UX3+UX3 UX3+UX3+UX3

40 42

Ton

34 36

Model Name

Combination Unit

ARUN408BTE4 ARUN432BTE4

Independent Unit

ARUN121BTE4 ARUN145BTE4 ARUN145BTE4 ARUN145BTE4 ARUN145BTE4 ARUN145BTE4

Refrigerant

Refrigerant name

R410A R410A

Control

EEV EEV

Number of maximum connectable indoor units

64 64

Net Weight

(245 x 1) + (305 x 2) (305 x 3)

lbs

(540 x 1) + (672 x 2) (672 x 3)

Pipe Connections

Liquid Pipes mm(inch)

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

Low Pressure Gas Pipes

mm(inch)

41.3(1 5/8) 41.3(1 5/8)

Chassis

UX3 UX3+UX3+UX3

18 46

Ton

14 38

Model Name

Combination Unit

ARUN169BTE4 ARUN456BTE4

Independent Unit

Combination only (Not for 1Unit)

ARUN169BTE4 ARUN145BTE4 ARUN145BTE4

Refrigerant

Refrigerant name

R410A R410A

Control

EEV EEV

Number of maximum connectable indoor units

29 64

Net Weight

(305 x 1) (305 x 3)

lbs

(672 x 1) (672 x 3)

Pipe Connections

Liquid Pipes mm(inch)

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

Low Pressure Gas Pipes

mm(inch)

28.58(1 1/8) 41.3(1 5/8)

Chassis

UX3+UX3+UX3 UX3+UX3+UX3

48 50

Ton

40 42

Model Name

Combination Unit

ARUN480BTE4 ARUN504BTE4

Independent Unit

ARUN169BTE4 ARUN169BTE4 ARUN169BTE4 ARUN169BTE4 ARUN145BTE4 ARUN169BTE4

Refrigerant

Refrigerant name

R410A R410A

Control

EEV EEV

Number of maximum connectable indoor units

64 64

Net Weight

(305 x 3) (305 x 3)

lbs

(672 x 3) (672 x 3)

Pipe Connections

Liquid Pipes mm(inch)

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

Low Pressure Gas Pipes

mm(inch)

41.3(1 5/8) 41.3(1 5/8)

OUTDOOR UNITS INFORMATION

ENGLISH

Model Name : ARUN***DTE4

Power Supply Outdoor Unit (3Ø, 460V, 60Hz)

Chassis

UX3 UX3

14 18

Ton

12 14

Model Name

Combination Unit

ARUN144DTE4 ARUN168DTE4

Independent Unit

Refrigerant

Refrigerant name

R410A R410A

Control

EEV EEV

Number of maximum connectable indoor units

23 29

Net Weight

(285 × 1) (285 × 1)

lbs

(628 × 1) (628 × 1)

Pipe Connections

Liquid Pipes mm(inch)

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

Low Pressure Gas Pipes

mm(inch)

28.58(1 1/8) 28.58(1 1/8)

Chassis

UX2 UX3 UX3

8 10 12

Ton

6 8 10

Model Name

Combination Unit

ARUN072DTE4 ARUN096DTE4 ARUN121DTE4

Independent Unit

Refrigerant

Refrigerant name

R410A R410A R410A

Control

EEV EEV EEV

Number of maximum connectable indoor units

13 16 20

Net Weight

(195 × 1) (245 × 1) (245 × 1)

lbs

(430 × 1) (540 × 1) (540 × 1)

Pipe Connections

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)

OUTDOOR UNITS INFORMATION

ENGLISH

Chassis

UX3+UX3 UX3+UX3

24 26

Ton

20 22

Model Name

Combination Unit

ARUN240DTE4 ARUN264DTE4

Independent Unit

ARUN144DTE4 ARUN144DTE4 ARUN096DTE4 ARUN121DTE4

Refrigerant

Refrigerant name

R410A R410A

Control

EEV EEV

Number of maximum connectable indoor units

39 42

Net Weight

(245 × 1) + (285 × 1) (245 × 1) + (285 × 1)

lbs

(540 × 1) + (628 × 1) (540 × 1) + (628 × 1)

Pipe Connections

Liquid Pipes mm(inch)

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

Low Pressure Gas Pipes

mm(inch)

34.9(1 3/8) 34.9(1 3/8)

Chassis

UX2+UX3 UX2+UX3

20 22

Ton

16 18

Model Name

Combination Unit

ARUN192DTE4 ARUN216DTE4

Independent Unit

ARUN121DTE4 ARUN144DTE4 ARUN072DTE4 ARUN072DTE4

Refrigerant

Refrigerant name

R410A R410A

Control

EEV EEV

Number of maximum connectable indoor units

32 35

Net Weight

(195 × 1) + (245 × 1) (195 × 1) + (285 × 1)

lbs

(430 × 1) + (540 × 1) (430 × 1) + (628 × 1)

Pipe Connections

Liquid Pipes mm(inch)

15.88(5/8) 15.88(5/8)

Low Pressure Gas Pipes

mm(inch)

28.58(1 1/8) 28.58(1 1/8)

Chassis

UX3+UX3 UX2+UX3+UX3

28 32

Ton

24 26

Model Name

Combination Unit

ARUN288DTE4 ARUN312DTE4

Independent Unit

ARUN144DTE4 ARUN144DTE4 ARUN144DTE4 ARUN096DTE4

ARUN072DTE4

Refrigerant

Refrigerant name

R410A R410A

Control

EEV EEV

Number of maximum connectable indoor units

45 52

Net Weight

(285 × 2)

(195 × 1) + (245 × 1) + (285 × 1)

lbs

(628 × 2)

(430 × 1) + (540 × 1) + (628 × 1)

Pipe Connections

Liquid Pipes mm(inch)

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

Low Pressure Gas Pipes

mm(inch)

34.9(1 3/8) 34.9(1 3/8)

OUTDOOR UNITS INFORMATION

ENGLISH

Chassis

UX3+UX3

UX3+UX3+UX3

Ton

Model Name

Combination Unit

ARUN313DTE4

ARUN336DTE4

Independent Unit

ARUN168DTE4

ARUN144DTE4

ARUN096DTE4 ARUN096DTE4

Refrigerant

Refrigerant name

R410A

Control

EEV

Number of maximum connectable indoor units

Net Weight

(285 × 2)

(245 × 2) + (285 × 1)

lbs

(628 × 2)

(540 × 2) + (628 × 1)

Pipe Connections

Liquid Pipes mm(inch)

19.05(3/4)

Low Pressure Gas Pipes

mm(inch)

34.9(1 3/8)

Chassis

UX3 UX3+UX3+UX3

14 38

Ton

12 32

Model Name

Combination Unit

ARUN145DTE4 ARUN384DTE4

Independent Unit

Combination only (Not for 1Unit)

ARUN096DTE4 ARUN145DTE4 ARUN145DTE4

Refrigerant

Refrigerant name

R410A R410A

Control

EEV EEV

Number of maximum connectable indoor units

23 61

Net Weight

(285 × 1) (245 x 1) + (285 x 2)

lbs

(628 × 1) (540 x 1) + (628 x 2)

Pipe Connections

Liquid Pipes mm(inch)

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

Low Pressure Gas Pipes

mm(inch)

28.58(1 1/8) 41.3(1 5/8)

Chassis

UX3+UX3

UX3+UX3+UX3

Ton

Model Name

Combination Unit

ARUN337DTE4

ARUN360DTE4

Independent Unit

ARUN168DTE4

ARUN144DTE4

ARUN168DTE4

ARUN121DTE4 ARUN096DTE4

Refrigerant

Refrigerant name

R410A

Control

EEV

Number of maximum connectable indoor units

Net Weight

(285 × 2)

(245 × 2) + (285 × 1)

lbs

(628 × 2)

(540 × 2) + (628 × 1)

Pipe Connections

Liquid Pipes mm(inch)

19.05(3/4)

Low Pressure Gas Pipes

mm(inch)

34.9(1 3/8)

41.3(1 5/8)

OUTDOOR UNITS INFORMATION

ENGLISH

Chassis

UX3+UX3+UX3 UX3+UX3+UX3

40 42

Ton

34 36

Model Name

Combination Unit

ARUN408DTE4 ARUN432DTE4

Independent Unit

ARUN121DTE4 ARUN145DTE4 ARUN145DTE4 ARUN145DTE4 ARUN145DTE4 ARUN145DTE4

Refrigerant

Refrigerant name

R410A R410A

Control

EEV EEV

Number of maximum connectable indoor units

64 64

Net Weight

(245 x 1) + (285 x 2) (285 x 3)

lbs

(540 x 1) + (628 x 2) (628 x 3)

Pipe Connections

Liquid Pipes mm(inch)

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

Low Pressure Gas Pipes

mm(inch)

41.3(1 5/8) 41.3(1 5/8)

Chassis

UX3 UX3+UX3+UX3

18 46

Ton

14 38

Model Name

Combination Unit

ARUN169DTE4 ARUN456DTE4

Independent Unit

Combination only (Not for 1Unit)

ARUN169DTE4 ARUN145DTE4 ARUN145DTE4

Refrigerant

Refrigerant name

R410A R410A

Control

EEV EEV

Number of maximum connectable indoor units

29 64

Net Weight

(285 × 1) (285 × 3)

lbs

(628 × 1) (628 × 3)

Pipe Connections

Liquid Pipes mm(inch)

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

Low Pressure Gas Pipes

mm(inch)

28.58(1 1/8) 41.3(1 5/8)

Chassis

UX3+UX3+UX3 UX3+UX3+UX3

48 50

Ton

40 42

Model Name

Combination Unit

ARUN480DTE4 ARUN504DTE4

Independent Unit

ARUN169DTE4 ARUN169DTE4 ARUN169DTE4 ARUN169DTE4 ARUN145DTE4 ARUN169DTE4

Refrigerant

Refrigerant name

R410A R410A

Control

EEV EEV

Number of maximum connectable indoor units

64 64

Net Weight

(285 × 3) (285 × 3)

lbs

(628 × 3) (628 × 3)

Pipe Connections

Liquid Pipes mm(inch)

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

Low Pressure Gas Pipes

mm(inch)

41.3(1 5/8) 41.3(1 5/8)

ENVIRONMENT-FRIENDLY ALTERNATIVE REFRIGERANT R410A

ENGLISH

CAUTION

• The wall thickness of the piping should comply with the relevant local and national regulations for the designed pressure 3.8Mpa(551.1psi).

• Since R410A is a mixed refrigerant, the required additional refrigerant must be charged in its liquid state. If the refrigerant is charged in its gaseous state, its composition changes and the system will not work properly.

• Do not place the refrigerant container under the direct rays of the sun to prevent it from exploding.

• For high-pressure refrigerant, any unapproved pipe must not be used.

• Do not heat pipes more than necessary to prevent them from softening.

• Be careful not to install wrongly to minimize economic loss because it is expensive in comparison with R22.

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.

ALTERNATIVE REFRIGERANT R410A

SELECT THE BEST LOCATION

ENGLISH

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 in-

stalling the product at a place With a high humidity in winter (near beach, coast, lake, etc.) (Ex : Rooftop where there is always sunshine.)

SELECT THE BEST LOCATION

INSTALLATION SPACE

ENGLISH

Individual Installation

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

INSTALLATION SPACE

Category

Installation Space

Case 1

(10mm≤Side Space≤49mm)

Case 2

(Side Space≥49mm)

4 sides

are

walls

D Fron t

A≥10(13/32”) B≥300(11-13/16”) C≥10(13/32”) D≥500(19-11/16”)

A≥50(1-31/32”) B≥100(3-15/16”) C≥50(1-31/32”) D≥500(19-11/16”)

A E

Fron t Fron t Fron t

A≥10(13/32”) B≥300(11-13/16”) C≥10(13/32”) D≥500(19-11/16”) E≥20(25/32”)

A≥50(1-31/32”) B≥100(3-15/16”) C≥50(1-31/32”) D≥500(19-11/16”) E≥100(3-15/16”)

A E

Fron t Fron t

A≥10(13/32”) B≥300(11-13/16”) C≥10(13/32”) D≥500(19-11/16”) E≥20(25/32”) F≥600(23-5/8”)

A≥50(1-31/32”) B≥100(3-15/16”) C≥50(1-31/32”) D≥500(19-11/16”) E≥100(3-15/16”) F≥500(19-11/16”)

A E

Fron t Fron t Fron t Fron t

A≥10(13/32”) B≥300(11-13/16”) C≥10(13/32”) D≥300(11-13/16”) E≥20(25/32”) F≥500(19-11/16”)

A≥50(1-31/32”) B≥100(3-15/16”) C≥50(1-31/32”) D≥100(3-15/16”) E≥100(3-15/16”) F≥500(19-11/16”)

A E

Fron t Fron t

A≥10

(13/32”)

B≥500

(19-11/16”)

C≥10

(13/32”)

D≥500

(19-11/16”)

E≥20

(25/32”)

F≥900(35-7/16”)

A≥50

(1-31/32”)

B≥500

(19-11/16”)

C≥50

(1-31/32”)

D≥500

(19-11/16”)

E≥100

(3-15/16”)

F≥600

(23-5/8”)

Only 2

sides

are walls

Fron t

A≥10(13/32”) B≥300(11-13/16”)

Fron t Front Fr ont

A≥200(7-7/8”) B≥300(11-13/16”) E≥400(15-3/4”)

Limitations

on the

height of

the wall

(Refer to 4

side walls)

1500mm(59-1/16”)

500mm

(19-11/16”)

240mm(9-7/16”) or more

50mm(1-15/16”) or more

45° or

•

The height of the wall on the front side must be 1500mm(59-1/16”) or less.

•

The height of the wall on the inlet side must be 500mm(19-11/16”) 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) - 1500mm(59-1/16”)

- h2 = B(Actual height) - 500mm(19-11/16”)

INSTALLATION SPACE

ENGLISH

Seasonal wind and cautions in winter

• Sufficient measures are required in a snow area or severe cold area in winter so that product can be operated well.

• Get ready for seasonal wind or snow in winter even in other areas.

• Install a suction and discharge duct not to let in snow or rain.

• Install the outdoor unit not to come in contact with snow directly. If snow piles up and freezes on the air suction hole, the system may malfunction. If it is installed at snowy area, attach the hood to the system.

• Install the outdoor unit at the higher installation console by 50cm(1.64ft) 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(0.33ft), 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.

LIFTING METHOD

ENGLISH

CAUTION

Be very careful while carrying the product.

• Do not have only one person carry product if it is more than 20 kg(44lbs).

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

• Do not touch heat exchanger fins with your bare hands. Otherwise you may get a cut in your hands.

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

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

• Use 2 belts of at least 8m(26.2ft) 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.

Locking points for

transportation ropes

LIFTING METHOD

Forklift Carrying Hole

Forklift Carrying Guide

INSTALLATION

ENGLISH

The location of the Anchor bolts

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

• The outdoor unit supports at the bottom shall have width of at least 100mm(3-15/16 inch) under the Unit’s legs before being fixed.

• The outdoor unit supports should nave minimum height of 200mm(7-7/8 inch).

• Anchor bolt must be inserted at least 75mm(2-15/16 inch).

Chassis

Outdoor Unit Capacity

A [mm(inch)] B [mm(inch)]

Ton HP UX2 6Ton 8 HP 920(36-7/32) 792(31-3/16) UX3 8~14Ton 10~14,18HP 1240(48-13/16) 1102(42-3/8)

INSTALLATION

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

65(2-9/16)

At least

65(2-9/16)

At least

65(2-9/16)

At least 100mm(3-15/16 inch)

Unit : mm(inch)

Center of the Unit

730(28-3/4)

760(29-29/32)

At least 100mm(3-15/16 inch)

INSTALLATION

ENGLISH

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(7.87inch)).

At least 200mm

(7.87)

Unit : mm(inch)

200(7.87)

75(2.95)

100(3.94)

Ⓐ The corner part must be fixed firmly. Otherwise,

the support for the installation may be bent.

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

INSTALLATION

ENGLISH

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(4.92ft) longer than the pipe length.

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.

Copper

tube

Slanted Uneven Rough

Pipe

Reamer

Point down

Inclined

Inside is shining without scratches.

Smooth all round

Even length

all round

Surface

damaged

Cracked Uneven

thickness

= Improper ﬂaring =

Preparation of Piping

Pipe diameter

Inch (mm)

A inch (mm)

Wing nut type Clutch type

Ø1/4 (Ø6.35)

0.04~0.07 (1.1~1.8)

0~0.02 (0~0.5)

Ø3/8 (Ø9.52)

Ø1/2 (Ø12.7)

Ø5/8 (Ø15.88)

Bar

"A"

Copper pipe

INSTALLATION

ENGLISH

Flare shape and ﬂare nut tightening torque

Opening shutoff valve

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.

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.

Pipe size [mm(inch)]

Tightening Torque[N.m(lbs.ft)]

A [mm(inch)] flare shape

Ø9.52(3/8) 38±4(28±3.0) 12.8(0.5)~13.2(0.52)

Ø12.7(1/2) 55±6(41±4.4) 16.2(0.64)~16.6(0.65)

Ø15.88(5/8) 75±7(55±5.2) 19.3(0.76)~19.7(0.78)

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

R=0.4~0.8

INSTALLATION

ENGLISH

Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 248°F).

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 73.4°F), water drops are liable to fall. In this case, add heat insulation material according to the following procedure:

- Heat insulation material to be prepared... EPDM (Ethylene Propylene Diene Methylene)-over 248°F the heat-resistance temperature.

- Add the insulation over 10mm(0.39 inch) thickness at high humidity environment.

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

Shut off

valve size

[mm(inch)]

Tightening torque N·m(lbs·ft) (Turn clockwise to close)

Shaft(valve body)

Cap

(Valve lid)

Service

port

Flare nut

Gas line piping attached

to unit

Closed Opened Hexagonal

Ø6.35(1/4)

6.0 ±0.6

(4.4±0.4)

5.0 ±0.5

(3.7±0.4)

4mm

(0.16inch)

17.6±2.0

(13.0±1.5)

12.7±2

(9.4±1.5)

16±2(12±1.5)

Ø9.52(3/8)

38±4(28±3.0)

Ø12.7(1/2)

10.0 ±1.0 (7.4±0.7)

20.0±2.0

(14.8±1.5)

55±6

(41±4.4)

Ø15.88(5/8)

12.0 ±1.2 (8.9±0.9)

5mm

(0.24inch)

25.0±2.5

(18.4±1.8)

75±7

(55±5.1)

Ø19.05(3/4)

14.0 ±1.4

(10.3±1.0)

110±10

(81.1±7.4)

Ø22.2(7/8)

30.0 ±3.0

(22.1±2.2)

8mm

(0.31inch)

25±3.0

(18.5±2.2)

Ø25.4(1.0)

Indoor unit

Fastening band (accessory)

Refrigerant piping

Thermal insulator (accessory)

INSTALLATION

ENGLISH

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.

Refrigerant piping on three principles

Drying Cleanliness Airtight

Should be no moisture inside No dust inside.

There is no refrigerant leak-

age

Items

Moisture

Dust

Leakage

Cause failure

- Significant hydrolysis of refrigerant oil

- Degradation of refrigerant oil

- Poor insulation 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

Countermeasure

- 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.

INSTALLATION

ENGLISH

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.

1 Always use the nitrogen.(not use oxygen, carbon dioxide, and a Chevron gas):

Please use the following nitrogen pressure 0.02Mpa(2.9psi) Oxygen – Promotes oxidative degradation of refrigerant oil. Because it is flammable, it is strictly prohibited to use Carbon dioxide – Degrade the drying characteristics of gas Chevron Gas – Toxic gas occurs when exposed to direct flame.

2 Always use a pressure reducing valve.

3. Please do not use commercially available antioxidant. The residual material seems to be the oxide scale is observed. In fact, due to the organic acids generated by oxidation of the alcohol contained in the antioxidants, ants nest corrosion occurs. (causes of organic acid  alcohol + copper + water + temperature)

CAUTION

Regulator

Welding Point

Oxide scale

Note) should not block the outlet side. When the internal pressure in pipe is abo ve the atmospheric pressure, pinhole is o ccurred and it is a leakage cause.

Nitrogen gas Pressure 0.02Mpa(2.9psi) less

Taping

(Should not

contain air)

Auxiliary valve

Nitrogen

REFRIGERANT PIPING INSTALLATION

ENGLISH

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.

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 leakage after the work.

REFRIGERANT PIPING INSTALLATION

Service Port

Liquid pipe

Gas pipe

Refrigerant

Charging Port

+ 65 hidden pages