LG LRUN1208T0, LRUV1208TS0 INSTALLATION MANUAL

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Page 1

System

Outdoor Unit

INSTALLATION MANUAL

MODELS: LRUV Series

LRUN Series

website http://www.lgservice.com

IMPORTANT

• 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.

Page 2

2 Outdoor Unit

LRUV(N) Series Outdoor Unit Installation Manual

TABLE OF CONTENTS

Safety Precautions.........................3

Installation Process.....................10

Outdoor Units Information..........11

Select the Best Location.............16

Installation Space ........................17

Lifting method..............................21

Installation....................................22

Refrigerant piping installation....26

Electrical Wiring...........................55

Test Run........................................79

Caution For Refrigerant Leak .....87

Page 3

Installation Manual 3

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions must be followed.

■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications.

■ Meanings of symbols used in this manual are as shown below.

This symbol indicates the possibility of death or serious injury. This symbol indicates the possibility of injury or damage to properties only.

Be sure not to do.

Be sure to follow the instruction.

■ 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.

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4 Outdoor Unit

Safety Precautions

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.

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.

Gasolin

Page 5

Installation Manual 5

Safety Precautions

Ventilate before operating air conditioner when gas leaked out.

• It may cause explosion, fire, and burn.

Securely install the cover of control box and the panel.

• If the cover and panel are not installed securely, dust or water may enter the outdoor unit and fire or electric shock may result.

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

• Consult the dealer regarding the appropriate measures to prevent the safety limit from being exceeded. Should the refrigerant leak and cause the safety limit to be exceeded, harzards due to lack of oxygen in the room could result.

■ 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.

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6 Outdoor Unit

Safety Precautions

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 grill of the product during operation. (Do not touch the electrostatic filter, if the unit is so equipped.)

• There is risk of physical injury, electric shock, or product failure.

■ Installation

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

• Low refrigerant levels may cause failure of product.

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

• It may cause a problem for your neighbors.

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.

90˚

Gasolin

Page 7

Installation Manual 7

Safety Precautions

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.

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8 Outdoor Unit

Safety Precautions

■ 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 cablemay not be applied to the terminals.

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

Be sure the installation area does not deteriorate with age.

• If the base collapses, the air conditioner could fall with it, causing property damage, product failure, or personal injury.

Install and insulate the drain hose to ensure that water is drained away properly based on the installation manual.

• A bad connection may cause water leakage.

Be very careful about product transportation.

• Only one person should not carry the product if it weighs more than 20 kg.

• Some products use PP bands for packaging. Do not use any PP bands for a means of transportation. It is dangerous.

• Do not touch the heat exchanger fins. Doing so may cut your fingers.

• When transporting the Outdoor Unit, suspending it at the specified positions on the unit base. Also support the Outdoor Unit at four points so that it cannot slip sideways.

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Installation Manual 9

Safety Precautions

Safely dispose of the packing materials.

•

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

•

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

Turn on the power at least 6 hours before starting operation.(In case of outdoor temperature below 10°C)

• 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 board(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.

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10 Outdoor Unit

Installation

Installation Process

The foundation must be level

Outdoor unit foundation work

Avoid short circuits and ensure sufficient space is allowed for service

Installation of outdoor unit

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

(In case of the outdoor temperature below10°C)

Automatic addressing of indoor unit

In the final check for 24hours at 2.94 MPa(30.0 kg/cm

) there must be no drop in pressure.

All tight 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 relationship between outdoor, indoor, remote controller, And option connections clear. (Prepare control circuit diagram)

Preparation of contract drawings

Indicate clearly who is to be responsible for switch settings

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 additive 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

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.

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Installation Manual 11

Outdoor Units Information

CAUTION: A ratio of the connectable Indoor Units with the Outdoor Unit : within 50 ~ 130%

Power Supply: Outdoor Unit (3Ø, 380 ~ 415V, 50Hz)

■ Cooling Only

Unit System(HP) Model Product Charge kg CF(Correction Factor) kg Max. Connectable No. of Indoor Units Net Weight kg(lbs)

Dimensions (W x H x D)

mm(inch)

Pipe Connections

Liquid Pipes(mm(inch))

Gas Pipes(mm(inch))

1 Outdoor Unit(Half size) 1 Outdoor Unit

568101214

LRUV508T0 LRUV608T0 LRUV808T0 LRUV1008T0 LRUV1208T0 LRUV1408T0

556101010 000-1-1-1 6 8 13 16 16 16

150(330.7) 150(330.7) 150(330.7) 300(661.4) 300(661.4) 300(661.4) 806 x 1555 x 730 806 x 1555 x 730 806 x 1555 x 730 1280 x 1555 x 730 1280 x 1555 x 730 1280 x 1555 x 730 (31.7 x 61.2 x 28.7) (31.7 x 61.2 x 28.7) (31.7 x 61.2 x 28.7) (50.4 x 61.2 x 28.7) (50.4 x 61.2 x 28.7) (50.4 x 61.2 x 28.7)

Ø9.52(3/8) Ø9.52(3/8) Ø12.7(1/2) Ø12.7(1/2) Ø12.7(1/2) Ø12.7(1/2)

Ø19.05(3/4) Ø22.2(7/8) Ø28.58(11/8) Ø28.58(11/8) Ø28.58(11/8) Ø28.58(11/8)

Unit System(HP) Model

Product Charge kg CF(Correction Factor) kg Max. Connectable No. of Indoor Units Net Weight kg(lbs)

Dimensions (W x H x D)

mm(inch)

Pipe Connections

Liquid Pipes(mm(inch))

Gas Pipes(mm(inch))

2 Outdoor Units

3 Outdoor Units

16 18 20 22 24 26

LRUV1608TS0 LRUV1808TS0 LRUV2008TS0 LRUV2208S0 LRUV2408TS0 LRUV2608TR0

LRUV808TS0 LRUV1008TS0 LRUV1008TS0 LRUV1208TS0 LRUV1208TS0 LRUV1008TR0

LRUC808TS0 LRUC808TS0 LRUC1008TS0 LRUC1008TS0 LRUC1208TS0 LRUC808TR0

LRUC808TR0

10 x 2 10 x 2 10 x 2 10 x 2 10 x 2 10 x 3

-2 -2 -2 -2 -2 0

20 20 20 22 24 26

300(661.4) x 2 300(661.4) x 2 300(661.4) x 2 300(661.4) x 2 300(661.4) x 2 300(661.4) x 3

(1280 x 1555 x 730) x 2 (1280 x 1555 x 730) x 2 (1280 x 1555 x 730) x 2 (1280 x 1555 x 730) x 2 (1280 x 1555 x 730) x 2 (1280 x 1555 x 730) x 3

((50.4 x 61.2 x 28.7) x 2) ((50.4 x 61.2 x 28.7) x 2) ((50.4 x 61.2 x 28.7) x 2) ((50.4 x 61.2 x 28.7) x 2) ((50.4 x 61.2 x 28.7) x 2) ((50.4 x 61.2 x 28.7) x 3)

Ø19.05(3/4) Ø19.05(3/4) Ø19.05(3/4) Ø19.05(3/4) Ø19.05(3/4) Ø22.2(7/8)

Ø38.1(11/2) Ø38.1(11/2) Ø38.1(11/2) Ø38.1(11/2) Ø38.1(11/2) Ø44.5(13/4)

Unit System(HP) Model

Product Charge kg CF(Correction Factor) kg Max. Connectable No. of Indoor Units Net Weight kg(lbs)

Dimensions (W x H x D)

mm(inch)

Pipe Connections

Liquid Pipes(mm(inch))

Gas Pipes(mm(inch))

3 Outdoor Units

28 30 32 34 36 38 40

LRUV2808TR0 LRUV3008TR0 LRUV3208TR0 LRUV3408TR0 LRUV3608TR0 LRUV3808TR0 LRUV4008TR0

LRUV808TR0 LRUV1008TR0 LRUV1208TR0 LRUV1408TR0 LRUV1208TR0 LRUV1408TR0 LRUV1408TR0 LRUC1008TR0 LRUC1008TR0 LRUC1008TR0 LRUC1008TR0 LRUC1208TR0 LRUC1208TR0 LRUC1408TR0 LRUC1008TR0 LRUC1008TR0 LRUC1008TR0 LRUC1008TR0 LRUC1208TR0 LRUC1208TR0 LRUC1208TR0

10 x 3 10 x 3 10 x 3 10 x 3 10 x 3 10 x 3 10 x 3

0001122

32 32 32 34 36 38 40 300(661.4) x 3 300(661.4) x 3 300(661.4) x 3 300(661.4) x 3 300(661.4) x 3 300(661.4) x 3 300(661.4) x 3 (1280 x 1555 x 730) x 3 (1280 x 1555 x 730) x 3 (1280 x 1555 x 730) x 3 (1280 x 1555 x 730) x 3 (1280 x 1555 x 730) x 3 (1280 x 1555 x 730) x 3 (1280 x 1555 x 730) x 3

((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3)

Ø22.2(7/8) Ø22.2(7/8) Ø22.2(7/8) Ø22.2(7/8) Ø22.2(7/8) Ø22.2(7/8) Ø22.2(7/8) Ø44.5(13/4) Ø44.5(13/4) Ø44.5(13/4) Ø44.5(13/4) Ø44.5(13/4) Ø44.5(13/4) Ø44.5(13/4)

Page 12

12 Outdoor Unit

Outdoor Units Information

■ Heat Pump

Unit System(HP) Model Product Charge kg CF(Correction Factor) kg Max. Connectable No. of Indoor Units Net Weight kg(lbs)

Dimensions (W x H x D)

mm(inch)

Pipe Connections

Liquid Pipes(mm(inch))

Gas Pipes(mm(inch))

1 Outdoor Unit(Half size)

1 Outdoor Unit

568101214

LRUN508T0 LRUN608T0 LRUN808T0 LRUN1008T0 LRUN1208T0 LRUN1408T0

5 5 10 10 10 10 0 0 -1 -1 -1 -1 6 8 13 16 16 16

150(330.7) 150(330.7) 300(661.4) 300(661.4) 300(661.4) 300(661.4) 806 x 1555 x 730 806 x 1555 x 730 1280 x 1555 x 730 1280 x 1555 x 730 1280 x 1555 x 730 1280 x 1555 x 730 (

31.7 x 61.2 x 28.7) (31.7 x 61.2 x 28.7) (50.4 x 61.2 x 28.7) (50.4 x 61.2 x 28.7) (50.4 x 61.2 x 28.7) (50.4 x 61.2 x 28.7)

Ø9.52(3/8) Ø9.52(3/8) Ø12.7(1/2) Ø12.7(1/2) Ø12.7(1/2) Ø12.7(1/2)

Ø19.05(3/4) Ø22.2(7/8) Ø28.58(11/8) Ø28.58(11/8) Ø28.58(11/8) Ø28.58(11/8)

Unit System(HP) Model

Product Charge kg CF(Correction Factor) kg Max. Connectable No. of Indoor Units Net Weight kg(lbs)

Dimensions (W x H x D)

mm(inch)

Pipe Connections

Liquid Pipes(mm(inch))

Gas Pipes(mm(inch))

2 Outdoor Units

3 Outdoor Units

16 18 20 22 24 26

LRUN1608TS0 LRUN1808TS0 LRUN2008TS0 LRUN2208TS0 LRUN2408TS0 LRUN2608TR0

LRUN808TS0 LRUN1008TS0 LRUN1008TS0 LRUN1208TS0 LRUN1208TS0 LRUN1008TR0 LRUH808TS0 LRUH808TS0 LRUH1008TS0 LRUH1008TS0 LRUH1208TS0 LRUH808TR0

LRUH808TR0

10 x 2 10 x 2 10 x 2 10 x 2 10 x 2 10 x 3

-2 -2 -2 -2 -2 0

20 20 20 22 24 26 300(661.4) x 2 300(661.4) x 2 300(661.4) x 2 300(661.4) x 2 300(661.4) x 2 300(661.4) x 3 (1280 x 1555 x 730) x 2 (1280 x 1555 x 730) x 2 (1280 x 1555 x 730) x 2 (1280 x 1555 x 730) x 2 (1280 x 1555 x 730) x 2 (1280 x 1555 x 730) x 3

((50.4 x 61.2 x 28.7) x 2) ((50.4 x 61.2 x 28.7) x 2) ((50.4 x 61.2 x 28.7) x 2) ((50.4 x 61.2 x 28.7) x 2) ((50.4 x 61.2 x 28.7) x 2) ((50.4 x 61.2 x 28.7) x 3)

Ø19.05(3/4) Ø19.05(3/4) Ø19.05(3/4) Ø19.05(3/4) Ø19.05(3/4) Ø22.2(7/8)

Ø38.1(11/2) Ø38.1(11/2) Ø38.1(11/2) Ø38.1(11/2) Ø38.1(11/2) Ø44.5(13/4)

Unit System(HP) Model

Product Charge kg CF(Correction Factor) kg Max. Connectable No. of Indoor Units Net Weight kg(lbs)

Dimensions (W x H x D)

mm(inch)

Pipe Connections

Liquid Pipes(mm(inch))

Gas Pipes(mm(inch))

3 Outdoor Units

28 30 32 34 36 38 40

LRUN2808TR0 LRUN3008TR0 LRUN3208TR0 LRUN3408TR0 LRUN3608TR0 LRUN3808TR0 LRUN4008TR0

LRUN808TR0 LRUN1008TR0 LRUN1208TR0 LRUN1408TR0 LRUN1208TR0 LRUN1408TR0 LRUN1408TR0

LRUH1008TR0 LRUH1008TR0 LRUH1008TR0 LRUH1008TR0 LRUH1208TR0 LRUH1208TR0 LRUH1408TR0 LRUH1008TR0 LRUH1008TR0 LRUH1008TR0 LRUH1008TR0 LRUH1208TR0 LRUH1208TR0 LRUH1208TR0

10 x 3 10 x 3 10 x 3 10 x 3 10 x 3 10 x 3 10 x 3

0001122

((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3)

Ø22.2(7/8) Ø22.2(7/8) Ø22.2(7/8) Ø22.2(7/8) Ø22.2(7/8) Ø22.2(7/8) Ø22.2(7/8)

Ø44.5(13/4) Ø44.5(13/4) Ø44.5(13/4) Ø44.5(13/4) Ø44.5(13/4) Ø44.5(13/4) Ø44.5(13/4)

Page 13

Installation Manual 13

Outdoor Units Information

Power Supply: Outdoor Unit (3Ø, 380V, 60Hz)

■ Cooling Only

Unit System(HP) Model Product Charge kg CF(Correction Factor) kg Max. Connectable No. of Indoor Units Net Weight kg(lbs)

Dimensions (W x H x D)

mm(inch)

Pipe Connections

Liquid Pipes(mm(inch))

Gas Pipes(mm(inch))

1 Outdoor Unit(Half size) 1 Outdoor Unit

568101214

LRUV509T0 LRUV609T0 LRUV809T0 LRUV1009T0 LRUV1209T0 LRUV1409T0

556101010 000-1-1-1 6 8 13 16 16 16

150(330.7) 150(330.7) 150(330.7) 300(661.4) 300(661.4) 300(661.4)

806 x 1555 x 730 806 x 1555 x 730 806 x 1555 x 730 1280 x 1555 x 730 1280 x 1555 x 730 1280 x 1555 x 730

(31.7 x 61.2 x 28.7) (31.7 x 61.2 x 28.7) (31.7 x 61.2 x 28.7) (50.4 x 61.2 x 28.7) (50.4 x 61.2 x 28.7) (50.4 x 61.2 x 28.7)

Ø9.52(3/8) Ø9.52(3/8) Ø12.7(1/2) Ø12.7(1/2) Ø12.7(1/2) Ø12.7(1/2)

Ø19.05(3/4) Ø22.2(7/8) Ø28.58(11/

8) Ø28.58(1

Unit System(HP) Model

Product Charge kg CF(Correction Factor) kg Max. Connectable No. of Indoor Units Net Weight kg(lbs)

Dimensions (W x H x D)

mm(inch)

Pipe Connections

Liquid Pipes(mm(inch))

Gas Pipes(mm(inch))

2 Outdoor Units

16 18 20 22 24 26

LRUV1609TS0 LRUV1809TS0 LRUV2009TS0 LRUV2209TS0 LRUV2409TS0 LRUV2609TS0

LRUV809TS0 LRUV1009TS0 LRUV1009TS0 LRUV1209TS0 LRUV1209TS0 LRUV1409TS0 LRUC809TS0 LRUC809TS0 LRUC1009TS0 LRUC1009TS0 LRUC1209TS0 LRUC1209TS0

10 x 2 10 x 2 10 x 2 10 x 2 10 x 2 10 x 2

-2 -2 -2 -2 -2 -1 20 20 20 22 24 26

300(661.4) x 2 300(661.4) x 2 300(661.4) x 2 300(661.4) x 2 300(661.4) x 2 300(661.4) x 2

(1280 x 1555 x 730) x 2 (1280 x 1555 x 730) x 2 (1280 x 1555 x 730) x 2 (1280 x 1555 x 730) x 2 (1280 x 1555 x 730) x 2 (1280 x 1555 x 730) x 2)

((50.4 x 61.2 x 28.7) x 2) ((50.4 x 61.2 x 28.7) x 2) ((50.4 x 61.2 x 28.7) x 2) ((50.4 x 61.2 x 28.7) x 2) ((50.4 x 61.2 x 28.7) x 2) ((50.4 x 61.2 x 28.7) x 2)

Ø19.05(3/4) Ø19.05(3/4) Ø19.05(3/4) Ø19.05(3/4) Ø19.05(3/4) Ø19.05(3/4)

Ø38.1(11/2) Ø38.1(11/2) Ø38.1(11/2) Ø38.1(11/2) Ø38.1(11/2) Ø38.1(11/2)

Unit System(HP) Model

Product Charge kg CF(Correction Factor) kg Max. Connectable No. of Indoor Units Net Weight kg(lbs)

Dimensions (W x H x D)

mm(inch)

Pipe Connections

Liquid Pipes(mm(inch))

Gas Pipes(mm(inch))

3 Outdoor Units

28 30 32 34 36 38 40

LRUV2809TR0 LRUV3009TR0 LRUV3209TR0 LRUV3409TR0 LRUV3609TR0 LRUV3809TR0 LRUV4008TR0

LRUV809TR0 LRUV1009TR0 LRUV1209TR0 LRUV1409TR0 LRUV1209TR0 LRUV1409TR0 LRUV1409TR0 LRUC1009TR0 LRUC1009TR0 LRUC1009TR0 LRUC1009TR0 LRUC1209TR0 LRUC1209TR0 LRUC1409TR0 LRUC1009TR0 LRUC1009TR0 LRUC1009TR0 LRUC1009TR0 LRUC1209TR0 LRUC1209TR0 LRUC1209TR0

10 x 3 10 x 3 10 x 3 10 x 3 10 x 3 10 x 3 10 x 3

0001122

((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3)

Ø22.2(7/8) Ø22.2(7/8) Ø22.2(7/8) Ø22.2(7/8) Ø22.2(7/8) Ø22.2(7/8) Ø22.2(7/8) Ø

44.5(13/4)Ø44.5(13/4)Ø44.5(13/4)Ø44.5(13/4)Ø44.5(13/4)Ø44.5(13/4)Ø44.5(13/4)

Page 14

14 Outdoor Unit

Outdoor Units Information

■ Heat Pump

Unit System(HP) Model Product Charge kg CF(Correction Factor) kg Max. Connectable No. of Indoor Units Net Weight kg(lbs)

Dimensions (W x H x D)

mm(inch)

Pipe Connections

Liquid Pipes(mm(inch))

Gas Pipes(mm(inch))

1 Outdoor Unit(Half size)

1 Outdoor Unit

568101214

LRUN509T0 LRUN609T0 LRUN809T0 LRUN1009T0 LRUN1209T0 LRUN1409T0

5 5 10 10 10 10 0 0 -1 -1 -1 -1 6 8 13 16 16 16

150(330.7) 150(330.7) 300(661.4) 300(661.4) 300(661.4) 300(661.4)

806 x 1555 x 730 806 x 1555 x 730 1280 x 1555 x 730 1280 x 1555 x 730 1280 x 1555 x 730 1280 x 1555 x 730

(31.7 x 61.2 x 28.7) (31.7 x 61.2 x 28.7) (50.4 x 61.2 x 28.7) (50.4 x 61.2 x 28.7) (50.4 x 61.2 x 28.7) (50.4 x 61.2 x 28.7

Ø9.52(3/8) Ø9.52(3/8) Ø12.7(1/2) Ø12.7(1/2) Ø12.7(1/2) Ø12.7(1/2)

Ø19.05(3/4) Ø22.2(7/8) Ø28.58(11/8) Ø28.58(11/8) Ø28.58(11/8) Ø28.58(11/8)

Unit System(HP) Model

Product Charge kg CF(Correction Factor) kg Max. Connectable No. of Indoor Units Net Weight kg(lbs)

Dimensions (W x H x D)

mm(inch)

Pipe Connections

Liquid Pipes(mm(inch))

Gas Pipes(mm(inch))

2 Outdoor Units

16 18 20 22 24 26

LRUN1609TS0 LRUN1809TS0 LRUN2009TS0 LRUN2209TS0 LRUN2409TS0 LRUN2609TS0

LRUN809TS0 LRUN1009TS0 LRUN1009TS0 LRUN1209TS0 LRUN1209TS0 LRUN1409TS0 LRUH809TS0 LRUH809TS0 LRUH1009TS0 LRUH1009TS0 LRUH1209TS0 LRUH1209TS0

10 x 2 10 x 2 10 x 2 10 x 2 10 x 2 10 x 2

-2 -2 -2 -2 -2 -1

20 20 20 22 24 26

300(661.4) x 2 300(661.4) x 2 300(661.4) x 2 300(661.4) x 2 300(661.4) x 2 300(661.4) x 2

(1280 x 1555 x 730) x 2 (1280 x 1555 x 730) x 2 (1280 x 1555 x 730) x 2 (1280 x 1555 x 730)) x 2 (1280 x 1555 x 730) x 2 (1280 x 1555 x 730) x 2

((50.4 x 61.2 x 28.7) x 2) ((50.4 x 61.2 x 28.7) x 2) ((50.4 x 61.2 x 28.7) x 2) ((50.4 x 61.2 x 28.7) x 2) ((50.4 x 61.2 x 28.7) x 2) ((50.4 x 61.2 x 28.7) x 2)

Ø19.05(3/4) Ø19.05(3/4) Ø19.05(3/4) Ø19.05(3/4) Ø19.05(3/4) Ø19.05(3/4)

Ø38.1(11/

2) Ø38.1(1

Unit System(HP) Model

Product Charge kg CF(Correction Factor) kg Max. Connectable No. of Indoor Units Net Weight kg(lbs)

Dimensions (W x H x D)

mm(inch)

Pipe Connections

Liquid Pipes(mm(inch))

Gas Pipes(mm(inch))

3 Outdoor Units

28 30 32 34 36 38 40

LRUN2809TR0 LRUN3009TR0 LRUN3209TR0 LRUN3409TR0 LRUN3609TR0 LRUN3809TR0 LRUN4009TR0

LRUN809TR0 LRUN1009TR0 LRUN1209TR0 LRUN1409TR0 LRUN1209TR0 LRUN1409TR0 LRUN1409TR0 LRUH1009TR0 LRUH1009TR0 LRUH1009TR0 LRUH1009TR0 LRUH1209TR0 LRUH1209TR0 LRUH1409TR0 LRUH1009TR0 LRUH1009TR0 LRUH1009TR0 LRUH1009TR0 LRUH1209TR0 LRUH1209TR0 LRUH1209TR0

10 x 3 10 x 3 10 x 3 10 x 3 10 x 3 10 x 3 10 x 3

0001122

((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3) ((50.4 x 61.2 x 28.7) x 3)

Ø22.2(7/8) Ø22.2(7/8) Ø22.2(7/8) Ø22.2(7/8) Ø22.2(7/8) Ø22.2(7/8) Ø22.2(7/8) Ø

44.5(13/4)Ø44.5(13/4)Ø44.5(13/4)Ø44.5(13/4)Ø44.5(13/4)Ø44.5(13/4)Ø44.5(13/4)

Page 15

Installation Manual 15

Outdoor Units Information

Power Supply: Outdoor Unit (3Ø, 220V, 60Hz)

■ Cooling Only

■ Heat Pump

Unit System(HP) Model

Product Charge kg CF(Correction Factor) kg Max. Connectable No. of Indoor Units Net Weight kg(lbs)

Dimensions (W x H x D)

mm(inch)

Pipe Connections

Liquid Pipes(mm(inch))

Gas Pipes(mm(inch))

1 Outdoor Unit(Half size)

1 Outdoor Unit

2 Outdoor Units 3 Outdoor Units

5 6 8 10122030

LRUV50BT0 LRUV60BT0 LRUV80BT0 LRUV100BT0 LRUV120BT0 LRUV200BTS0 LRUV300BTR0

LRUV100BTS0 LRUV100BTR0 LRUC100BTS0 LRUC100BTR0

LRUC100BTR0 5 5 10 10 10 10 x 2 10 x 3 0 0 -1 -1 -1 -2 0 6 8 13 16 16 20 32

150(330.7) 150(330.7) 300(661.4) 300(661.4) 300(661.4) 300(661.4) x 2 300(661.4) x 3

806 x 1555 x 730 806 x 1555 x 730 1280 x 1555 x 730 1280 x 1555 x 730 1280 x 1555 x 730

(1280 x 1555 x 730) x 2 (1280 x 1555 x 730) x 3

(31.7 x 61.2 x 28.7) (31.7 x 61.2 x 28.7) (50.4 x 61.2 x 28.7) (50.4 x 61.2 x 28.7) (50.4 x 61.2 x 28.7)

((50.4 x 61.2 x 28.7) x 2) ((50.4 x 61.2 x 28.7) x 3)

Ø9.52(3/8) Ø9.52(3/8) Ø12.7(1/2) Ø12.7(1/2) Ø12.7(1/2) Ø19.05(3/4) Ø22.2(7/8)

Ø19.05(3/4) Ø22.2(7/8)

Ø28.58

(11/8)

Ø28.58

(11/8)

Ø28.58

(11/8)

Ø38.1(11/2) Ø44.5(13/4)

Unit System(HP) Model

Product Charge kg CF(Correction Factor) kg Max. Connectable No. of Indoor Units Net Weight kg(lbs)

Dimensions (W x H x D)

mm(inch)

Pipe Connections

Liquid Pipes(mm(inch))

Gas Pipes(mm(inch))

1 Outdoor Unit(Half size)

1 Outdoor Unit

2 Outdoor Units 3 Outdoor Units

5 6 8 10122030

LRUN50BT0 LRUN60BT0 LRUN80BT0 LRUN100BT0 LRUN120BT0 LRUN200BTS0 LRUN300BTR0

LRUN100BTS0 LRUN100BTR0 LRUH100BTS0 LRUH100BTR0

LRUH100BTR0 5 5 10 10 10 10 x 2 10 x 3 0 0 -1 -1 -1 -2 0 6 8 13 16 16 20 32

150(330.7) 150(330.7) 300(661.4) 300(661.4) 300(661.4) 300(661.4) x 2 300(661.4) x 3 806 x 1555 x 730 806 x 1555 x 730 1280 x 1555 x 730 1280 x 1555 x 730 1280 x 1555 x 730 (1280 x 1555 x 730) x 2 (1280 x 1555 x 730) x 3

(31.7 x 61.2 x 28.7) (31.7 x 61.2 x 28.7) (50.4 x 61.2 x 28.7) (50.4 x 61.2 x 28.7) (50.4 x 61.2 x 28.7)

((50.4 x 61.2 x 28.7) x 2) ((50.4 x 61.2 x 28.7) x 3)

Ø12.7(1/2) Ø12.7(1/2) Ø12.7(1/2) Ø12.7(1/2) Ø12.7(1/2) Ø19.05(3/4) Ø22.2(7/8)

Ø19.05(3/4) Ø19.05(3/4) Ø28.58(9/8) Ø28.58(9/8) Ø28.58(9/8) Ø38.1(11/

2) Ø44.5(1

Page 16

16 Outdoor Unit

Select the Best Location

Select space for installing Outdoor Unit, which will meet the following conditions:

• No direct thermal radiation from other heat sources

• No possibility of annoying the 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 leak

of combustible gas is expected.

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

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

• It is recommended to fence round the Outdoor Unit in order to prevent any person or animal from accessing

the Outdoor Unit.

• If installation site is area of heavy snowfall, then the following directions should be observed.

- Make the foundation as high as possible.

- Fit a snow protection hood.

• Select installation location considering following conditions to avoid bad condition when additionally performing defrost operation.

1. Install the outdoor unit at a place well ventilated and having a lot of sunshine in case of installing the product at a place with a high humidity in winter (neare beach, coast, lake, etc). (Ex) Rooftop where sunshine always shines.

2. Performance of heating will be reduced and preheat time of the indoor unit may be lengthened in case of installing the outdoor unit in winter at following location: (1) Shade position with a narrow space (2) Location with much moisture in neighboring floor. (3) Location with much humidity around. (4) Location where ventilation is good.

It is recommended to install the outdoor unit at a place with a lot of sunshine as possible as.

(5) Location where water gathers since the floor is not even.

Page 17

Installation Manual 17

Installation Space

Individual Installation

■ Basic space required

A space of at least 250 mm is necessary at the back for inlet air. Taking servicing, etc. from the rear into account, a space of about 900 mm should be provided, the same as at the front.

■ When inlet air enters from right and left sides of unit

250 mm or more 900 mm or more (Control box is of a open/close type) Top discharge (open in principle)

Front inlet (open in principle)

Rear inlet (open in principle)

A B C D E

Control Box

Front Side

Rear Side

Control Box

Front Side

Rear Side

Control Box

Front Side

Rear Side

A B C

900 mm or more(Control box is of a open/close type) 250 mm or more 150 mm from the wall

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Control Box

Front Side

Rear Side

Front Side

Rear Side

< Side view > < Top view >

CAUTION

Wall height(H) must not exceed height of the product. If the wall height is higher than the whole height of product by (h), Add (h) to

, .

Page 18

18 Outdoor Unit

Installation Space

45° or more 200 mm or more 250 mm or more

A B C

1000 mm or more Air outlet guide (Procured at the site) 250 mm or more

D E F

< Front view >

< Side view >

■ When unit is surrounded by walls

900 mm or more (Control box is of a open/close type) 250 mm or more

A B

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

■ When there is an obstruction above the unit

Page 19

Installation Manual 19

Installation Space

Collective / Continuous installation

Space required for collective installation and continuous installation:When installing several units, leave the space between each block as shown below considering passage for air and people.

(Be opened) 900mm or more (control box is of a open/close type) 250 mm or more

A B C

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Front Side

Rear Side

Page 20

20 Outdoor Unit

Seasonal wind and cautions in winter

• Sufficient measures are required at 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 area.

• Install a suction and discharge duct not to let in snow or rain when the product operates at outdoor temperature of less than 10°C.

• Install the outdoor unit not to come in contact with snow directly. If snow piles up and freezes on the air suction

hole, the system may malfunction. If it is installed at snowy area, attach the hood to the system.

• Install the outdoor unit at the higher installation console by 50cm than the average snowfall (annual average snowfall) if it is installed at the area with much snowfall.

• Where snow accumulated on the upper part of the Outdoor Unit by more than 10cm, always remove snow for operation.

1. The height of H frame must be more than 2 times the snowfall and its width shall not exceed the width of the

product. (If width of the frame is wider than that of the product, snow may accumulate)

2. Don't install the suction hole and discharge hole of the Outdoor Unit facing to the seasonal wind.

CAUTION

• Always apply main power of the outdoor unit during use of product

(cooling season/heating season).

Lifting Method

• Always apply power before 6 hours to heat the crank case heater where performing test run after installation of product or where operating the product after cutting the main power of the outdoor unit (for example, power failure). It may result in burning out of the compressor if not preheating the crank case with the

electrical heater for more than 6 hours. (In case of the outdoor temperature below 10°C)

Page 21

Installation Manual 21

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 four points so that impact is not applied to the unit.

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

Lifting method

CAUTION

Be very careful to carry product.

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

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

are dangerous.

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

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

bag may suffocate children to death.

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

40° or less

WARNING

Page 22

22 Outdoor Unit

Installation

Location of anchor bolt

Installation

■ Individual installation

■ Example of collective installation

■ Installation foot (Location of anchor bolt)

700

900

383

900

700

900

700

900

700

900

383

900

383

900

10 383

900

383

900

383

900

383

900

383

900

Half size

Page 23

Installation Manual 23

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).

E F

Ensure that the corner part can be securely mounted. Otherwise, the support for installation may be bent.

Obtain and use the M10 anchor bolt. The corner was not properly mounted. Outdoor unit (Insert the cushion pad between outdoor unit and base support to ensure that

anti-vibration may be done in a wide area) Pipe and wiring space (in case of piping and wiring on the floor surface) H-Beam support Concrete base support

WARNING

• Be sure to install unit in a place strong enough to withstand its weight. Any lack of strength may cause unit to fall down, resulting in a personal injury.

• Have installation work in order to protect against a strong wind and earthquake. Any installation deficiency may cause unit to fall down, resulting in a personal injury.

• Especially take care for support strength of the floor surface, water drain processing (processing of water flown out from the Outdoor Unit during operation) and paths of the pipe and wiring when making a base support.

• Don't use a tube or pipe for water drain in the base pan and perform water drain processing by using the drain path. Water drain may not be done due to freezing of a tube or pipe.

Rear Side Side Side

Water

Drain

Path

Page 24

24 Outdoor Unit

Appendix

Preparation of Piping

1) Cut the pipes and the cable.

■ Use the accessory piping kit or the pipes purchased locally.

■ Measure the distance between the indoor and the Outdoor Unit.

■ Cut the pipes a little longer than measured distance.

■ Cut the cable 1.5m longer than the pipe length.

2) 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.

3) Flaring work

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

Exception) Wide Art Cool(4.0kW(13,600 Btu/h): Gas pipe(5/8"), Liquid pipe(3/8")

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

4) 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.

Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure.

Pipe " A "

Gas Liquid Gas

Liquid ~4.0(13,600) 1/2" 1/4" 0.5~0.8 0~0.5 ~9.0(30,700) 5/8" 3/8" 0.8~1.0 0.5~0.8

~15.0(51,200) 3/4" 3/8" 1.0~1.3 0.5~0.8

Indoor Unit

[kW(Btu/h]

Copper

tube

90°

Slanted Uneven Rough

Pipe

Reamer

Point down

Bar

Copper pipe

Clamp handle

Red arrow mark

Cone

Yoke

Handle

Bar

"A"

Inclined

Inside is shining without scratches.

Smooth all round

Even length

all round

Surface

damaged

Cracked Uneven

thickness

= Improper flaring =

Page 25

Installation Manual 25

Appendix

1. Form the piping according to its routing. Avoid bending and bending back the same piping point more than three times. (This will result in hardening the pipe.)

2. After deforming the piping, align centers of the union fitting of the Indoor Unit and the piping, and tighten them firmly with wrenches.

3. Connect pipe to the service valve or ball valve which is located below the Outdoor Unit.

4. After completing the piping connection, be sure to check if there is gas leakage in indoor and outdoor connection.

Union

Pipe size Flare nut fastening torque (N.m)

Ø6.35mm 14~18 Ø9.52mm 35~42

Ø12.7mm 50~57.5 Ø15.88mm 75~80 Ø19.05mm 100~140

Piping Connection

CAUTION

Use two wrenches and tighten with regular torque.

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

2. Precautions in high humidity circumstance: This air conditioner has been tested according to the "KS Standard 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... Adiabatic

glass wool with thickness 10 to 20mm.

• Stick glass wool on all air conditioners that are located in ceiling atmosphere.

• In addition to the normal heat insulation (thickness: more than 8mm) for refrigerant piping (gas piping: thick

piping) and drain piping, add further 10mm to 30mm thickness material.

Indoor Unit

Thermal insulator (accessory)

Fastening band (accessory)

Refrigerant piping

HEAT INSULATION

Page 26

26 Outdoor Unit

Refrigerant piping installation

WARNING

After completing work, securely tighten both service ports and caps so that gas does not leak.

Refrigerant piping installation

The method of connection consists of flare connections at the Indoor Units, flange connections for the piping of the Outdoor Unit and flare connections for the liquid piping. Note that the branched sections are brazed.

WARNING

Always use extreme care to prevent the refrigerant gas (R22) from the leakage while using fire or flame. If the refrigerant gas comes in contact with the flame from any source, such as a gas stove, it breaks down and generates a poisonous gas which can cause gas poisoning. Never weld in an unventilated room. Always conduct an inspection for gas leakage after installation of the refrigerant piping has been completed.

Pipe joint (auxiliary parts): Securely perform welding by passing nitrogen through the service valve port.

Flare nut: Loose or tighten flare nut by using the wrench with both ends. Coat the flare connection part with oil for a refrigerator.

Cap: Remove caps and operate valve, etc. After operation, always reattach caps (tightening torque of valve cap: 25Nm (250kg-cm) or more).

Service port: Make the refrigerant pipe empty and use the service port for filling additional refrigerant. Always reattach caps after completing work (tightening torque of service cap: 14Nm (140kg-cm) or more).

Liquid pipe Gas pipe Elbow joint: Elbow welding (Non-acid welding in welding)

Cautions in pipe connection/valve operation

Open status when both the pipe and the valve are in a straight line.

Cut both the pipe and the valve with a cutter to suit the length (Don't cut the length of less than 70mm)

Elbow

Ball Valv e(Gas Pipe)

Ball Valv e(Liquid Pipe)

Page 27

Installation Manual 27

Refrigerant piping installation

Connection of High/Low Pressure Common pipe

1. For the High/Low Pressure Common pipe, connect both Main Outdoor Unit and Sub (1, 2) Outdoor Unit to the pipe by using elbows supplied field.

2. For cutting the pipe, connect the High/Low Pressure Common pipe after removing burrs, dusts and foreign materials within the pipe. Otherwise, the product may not operate due to sludge within the pipe.

3. For leakage inspection of the work part, pressurize nitrogen gas by 2.94MPa (30kgf/cm

4. Continue vacuum work after the vacuum degree reaches to 5Torr

5. Open side bar with the hex wrench.

Connect the pipe by using Gas pipe Pressure connection elbow. For installing the pipe in the front after cutting part in a saw, install the only pipe knock out hole part. For installing the pipe in side, install the whole of pipe knock out.

Sub Outdoor Unit

Main Outdoor Unit

2 Outdoor Units 3 Outdoor Units

WARNING

After installing the pipe, clog the pipe excavation inlet of the front panel and the side panel (Wire may be damaged due to entering of rats, animals, etc).

Sub2 Outdoor Unit

Sub1 Outdoor Unit

Main Outdoor Unit

Knock out Transmission Line Hole

Power Cable Hole Pipe Hole

(Front) (Side)

Page 28

28 Outdoor Unit

Ø 28.58

Ø 38.1

❈ Branch Pipe for Connection between Outdoor Units: ARBL202C ❈ Branch Pipe for Connection between Outdoor Units: ARBL302C

Main Pipe

Sub2 + Sub1 Outdoor Unit Connection Pipe

Sub1 Outdoor Unit

Main Outdoor Unit

Ø 12.7

Sub1 + Main Outdoor Unit Connection Pipe

After cutting to length (Don't cut the pipe of less than 70mm)

Sub2 + Sub1 Outdoor Unit Connection Pipe

Sub1 Outdoor Unit Gas Pipe

Weld elbow while flowing nitrogen.

After cutting to length (Don't cut the pipe of less than 70mm)

Sub1 + Main Outdoor Unit Connection Pipe

Main Outdoor Unit Gas Pipe

Weld elbow while flowing nitrogen.

Ø 44.5

Ø 19.05

Ø 22.2

Ø 19.05

Ø 28.58

Ø 38.1

Ø 28.58

Refrigerant piping installation

2 Outdoor Units

3 Outdoor Units

CAUTION

Both the High/Low Pressure Common pipe and the Liquid pipe shall be insulated by insulation material.

Connection of Gas pipe Connection of Liquid pipe

Connection of Liquid(Gas) pipe

Connection of Gas pipe

Connection of Liquid pipe

Weld elbow while

After cutting to length (Don't cut the pipe of less than 70mm)

Sub Outdoor Gas Pipe

flowing nitrogen.

Ø 28.58

Main Outdoor Gas Pipe

Ø 38.1

Sub Outdoor Liquid pipe

Main Outdoor Liquid Pipe

Ø 12.7

Ø 19.05

❈ Branch Pipe for Connection between Outdoor Units: ARBL202C

Ø 28.58

Main Pipe

Ø 12.7

Main Pipe

Page 29

Installation Manual 29

Refrigerant piping installation

To Outdoor Unit Capped Piping

A B

1. Use the following materials for refrigeration piping.

• Material: Seamless phosphorous deoxidized copper pipe

2. Commercially available piping often contains dust and other materials. Always blow it clean with a dry inert gas.

3. Use care to prevent dust, water or other contaminants from entering the piping during installation.

4. Reduce the number of bending portions as much as possible, and make bending radius as big as possible.

5. Always use the branch piping set shown below, which are sold separately.

6. If the diameters of the branch piping of the designated refrigerant piping differs, use a pipe cutter to cut the connecting section and then use an adapter for connecting different diameters to connect the piping.

7. Always observe the restrictions on the refrigerant piping (such as rated length, the difference between high/low pressures and piping diameter). Failure to do so can result in equipment failure or a decline in heating/cooling performance.

8. A second branch cannot be made after a header. (These are shown by .)

9. The Multi V will stop due to an abnormality like excessive or insufficient refrigerant. At such a time, always properly charge the unit. When servicing, always check the notes concerning pipe length and amount of additional refrigerant at both locations.

10. Never perform a pump down. This will not only damage the compressor but also deteriorate the per-

formance.

11. Never use refrigerant to perform an air purge. Always evacuate using a vacuum pump.

12. Always insulate the piping properly. Insufficient insulation will result in a decline in heating/cooling perfor-

mance, water drops from condensation and other such problems.

13. When connecting the refrigerant piping, make sure the service valves of the Outdoor Unit is completely

closed (the factory setting) and do not operate it until the refrigerant piping for the Outdoor and Indoor Units has been connected, a refrigerant leakage test has been performed and the evacuation process has been completed.

14. Always use a non-oxidizing brazing material for brazing the parts. If a non-oxidizing brazing material is

used, it could cause clogging or damage to the compressor unit.

Caution

ARBL052S ARBL102S ARBL202S ARBL302S ARBL054 ARBL057 ARBL1010

ARBL052L ARBL102L ARBL202L ARBL302L ARBL104 ARBL107 ARBL2010

ARBL102G ARBL202M

Y branch

Header

4 branch 7 branch 10 branch

Page 30

30 Outdoor Unit

Refrigerant piping installation

WARNING

When installing and moving the air conditioner to another site, be sure to make recharge refrigerant after perfect evacuation.

- If a different refrigerant or air is mixed with the original refrigerant, the refrigerant cycle may malfunction and the unit may be damaged.

- After selecting diameter of the refrigerant pipe to suit total capacity of the Indoor Unit connected after branching, use an appropriate branch pipe set according to the pipe diameter of the Indoor Unit and the installation pipe drawing.

= Product length (1,280) +  (distance between Outdoor Units)

Pipe length between Outdoor Units

(Gas pipe, Liquid pipe, High/Low Pressure Common pipe)

Unit: mm

1,280

Distance between Outdoor Units

Page 31

Installation Manual 31

Refrigerant piping system

Refrigerant piping installation

◆ Y branch method

Longest piping length **Equivalent piping length A+B+C+D+e ≤ 120m A+B+C+D+e≤ 140m Longest piping length after 1st branch B+C+D+e ≤ 30m Difference in height(Outdoor Unit ↔ Indoor Unit) H ≤ 50m ( 40m : Outdoor Unit is lower than Indoor Units) Difference in height (Indoor Unit ↔ Indoor Unit) h ≤ 15m

1 Outdoor Unit(Half size)

L 120m

h 15m

H 50m

Example : 5 Indoor Units connected

: Outdoor Unit : 1st branch (Y branch) : Indoor Units : Downward Indoor Unit

➲ Main pipe diameter (A)

➲ Total piping length = A+B+C+D+a+b+c+d+e ≤ 220m

➲ Refrigerant pipe diameter from branch to branch (B,C,D)

Downward Indoor Unit total capacity

[kW(Btu/h)]

~8.3(28,300) Ø9.52(3/8 inch) Ø15.88(5/8 inch)

~17.8(60,700)

Ø12.7(1/2 inch) / 9.52(3/8 inch)

Ø19.05(3/4 inch)

~27.9(95,200) Ø12.7(1/2 inch) Ø25.4(1 inch) ~42.4(144,700) Ø12.7(1/2 inch) Ø28.58(11/8 inch) ~58.5(199,600) Ø15.88(5/8 inch) Ø31.8(11/4

inch)

~75.4(257,300) Ø19.05(3/4 inch) Ø38.1(11/2 inch)

75.5(257,600)~ Ø22.2(7/8 inch) Ø44.5(13/

4 inch)

Liquid pipe

(mm)

Gas pipe

(mm)

WARNING

Install the same main pipe diameter as those connected after the initial branch where the pipe diameter connected after the initial branch.

Ex) Where connecting the Indoor Unit to 24HP (67.2kW) to the 120%. Main pipe diameter of Outdoor Unit: Ø 38.1 (Gas pipe) Ø 19.05(Liquid pipe) Main pipe diameter of Outdoor Unit: Ø 44.5 (Gas pipe) Ø 22.2 (Liquid pipe) depending on 120% Indoor Unit combination Therefore, Ø 44.5 (Gas pipe), Ø 22.2 (Liquid pipe) as pipe diameter of the large side is selected as main pipe diameter.

*: Must be satisfied both conditions

**: Assume equivalent pipe length

of Y branch to be 0.5m, that of header to be 1m, calculation purpose.

Apply 5, 6HP model only

Page 32

32 Outdoor Unit

Refrigerant piping installation

Longest piping length **Equivalent piping length

A+B+C+D+e ≤ 120m A+B+C+D+e ≤ 140m

Longest piping length after 1st branch

B+C+D+e ≤ 30m

Difference in height(Outdoor Unit ↔ Indoor Unit)

H ≤ 50m ( 40m : Outdoor Unit is lower than Indoor Units)

Difference in height (Indoor Unit ↔ Indoor Unit)

h ≤ 15m

1 Outdoor Unit

L 120m

Example : 5 Indoor Units connected

: Outdoor Unit : 1st branch (Y branch) : Indoor Units : Downward Indoor Unit

➲ Main pipe diameter (A)

- Liquid pipe : Ø12.7mm(1/2 inch)

- Gas pipe : Ø28.58mm((11/8

inch)

➲ Total piping length = A+B+C+D+a+b+c+d+e ≤ 220m

➲ Refrigerant pipe diameter from branch to branch (B,C,D)

Downward Indoor Unit total capacity

[kW(Btu/h)]

~8.3(28,300) Ø9.52(3/8 inch) Ø15.88(5/8 inch) ~17.8(60,700) Ø12.7(1/2 inch) Ø19.05(3/4 inch) ~27.9(95,200) Ø12.7(1/2 inch) Ø25.4(1 inch)

~42.4(144,700) Ø12.7(1/2 inch) Ø28.58(11/

8 inch)

~58.5(199,600) Ø15.88(5/8 inch) Ø31.8(11/4 inch) ~75.4(257,300) Ø19.05(3/4 inch) Ø38.1(11/

2 inch)

75.5(257,600)~ Ø22.2(7/8 inch) Ø44.5(1

/4 inch)

Liquid pipe

(mm)

Gas pipe

(mm)

WARNING

Install the same main pipe diameter as those connected after the initial branch where the pipe diameter connected after the initial branch.

*: Must be satisfied both conditions

**: Assume equivalent pipe length

of Y branch to be 0.5m, that of header to be 1m, calculation purpose.

Page 33

Installation Manual 33

Refrigerant piping installation

2 Outdoor Units

Main

Sub

10m or

less

Example : 5 Indoor Units connected

: Outdoor Unit : 1st branch (Y branch) : Indoor Units : Downward Indoor Unit : Connection branch pipe

between Outdoor units: ARBL202C

➲ Sub Outdoor Unit ~ Connection branch pipe Pipe diameter (E)

High/Low Pressure Common pipe

(mm)

Ø19.05(3/4 inch) Ø12.7(1/2 inch) Ø28.58(11/8 inch)

Liquid pipe

(mm)

Gas pipe

(mm)

➲ Connection branch pipe ~ Main pipe diameter (A)

Ø19.05(3/4 inch) Ø38.1(11/2 inch)

Liquid pipe

(mm)

Gas pipe

(mm)

WARNING

• Main pipe must be always come out to direction of the Main Outdoor Unit in installation.

• For installing the refrigerant pipe system between Outdoor Units, use the connection branch pipe

between Outdoor Units.

Page 34

34 Outdoor Unit

Refrigerant piping installation

3 Outdoor Units

10m or

less

Example : 5 Indoor Units

connected

: Outdoor Unit

: 1st branch (Y branch) : Indoor Units : Downward Indoor Unit : Connection branch pipe

between Outdoor units: ARBL302C

: Connection branch pipe

between Outdoor units: ARBL202C

➲ Sub2 Outdoor unit ~ Connection branch pipe Pipe diameter (F)

High/Low Pressure Common pipe

(mm)

Ø19.05(3/4 inch) Ø12.7(1/2 inch) Ø28.58(11/8 inch)

Liquid pipe

(mm)

Gas pipe

(mm)

High/Low Pressure Common pipe

(mm)

Ø19.05(3/4 inch) Ø19.05(3/4 inch) Ø38.1(11/2 inch)

Liquid pipe

(mm)

Gas pipe

(mm)

➲ Connection branch pipe ~ Connection branch pipe Pipe diameter (E)

➲ Connection branch pipe

~ Main pipe diameter (A)

Ø22.2(7/8 inch) Ø44.5(13/4 inch)

Liquid pipe

(mm)

Gas pipe

(mm)

WARNING

• Main pipe must be always come out to direction of the Main Outdoor Unit in installation.

• For installing the refrigerant pipe system between Outdoor Units, use the connection branch pipe

between Outdoor Units.

Page 35

Installation Manual 35

Refrigerant piping installation

Longest piping length **Equivalent piping length A+B+C+D+e ≤ 120m A+B+C+D+e ≤ 140m Longest piping length after 1st branch B+C+D+e ≤ 30m Difference in height(Outdoor Unit ↔ Indoor Unit) H ≤ 50m ( 40m : Outdoor Unit is lower than Indoor Units) Difference in height (Indoor Unit ↔ Indoor Unit) h ≤ 15m

➲ Refrigerant pipe diameter from branch to branch (B,C,D)

➲ Total piping length = A+B+C+D+a+b+c+d+e ≤ 220m

Downward Indoor Unit total capacity

[kW(Btu/h)]

~8.3(28,300) Ø9.52(3/8 inch) Ø15.88(5/8 inch) ~17.8(60,700) Ø12.7(1/2 inch) Ø19.05(3/4 inch) ~27.9(95,200) Ø12.7(1/2 inch) Ø25.4(1 inch)

~42.4(144,700) Ø12.7(1/2 inch) Ø28.58(11/8

inch)

~58.5(199,600) Ø15.88(5/8 inch) Ø31.8(11/

4 inch)

~75.4(257,300) Ø19.05(3/4 inch) Ø38.1(11/2 inch)

75.5(257,600)~ Ø22.2(7/8 inch) Ø44.5(13/4 inch)

Liquid pipe

(mm)

Gas pipe

(mm)

WARNING

Install the same main pipe diameter as those connected after the initial branch where the pipe diameter connected after the initial branch.

*: Must be satisfied both conditions

**: Assume equivalent pipe length of Y branch to be 0.5m, that of header to be 1m, calculation purpose.

• Piping length from outdoor branch to outdoor unit ≤ 10m, equivalent lengh : max 13m (for 16HP or more)

Page 36

36 Outdoor Unit

Refrigerant piping installation

◆ Header Method

Longest piping length **Equivalent piping length A+f ≤ 120m A+f ≤ 140m Longest pipeing length after 1st branch f ≤ 30m Difference in height(Outdoor Unit ↔ Indoor Unit) H ≤ 50m ( 40m : Outdoor Unit is lower)*** Difference in height (Indoor Unit ↔ Indoor Unit) h ≤ 15m

1 Outdoor Unit(Half size)

Example : 6 Indoor Units connected

: Outdoor Unit : 1st branch : Indoor Units : Sealing

➲ Main pipe diameter (A)

➲ Total piping length = A+a+b+c+d+e+f ≤ 220m

H 50m

L 120m

15m

Branch pipe can not be used after header

*: Must be satisfied both conditions Caution : ***:Indoor Unit should be installed at lower position than the header.

**: Assume equivalent pipe length of

Y branch to be 0.5m, that of header to be 1m, calculation purpose.

Page 37

Installation Manual 37

Refrigerant piping installation

Longest pipingngth **Equivalent piping length A+f ≤ 120m A+f ≤ 140m Longest piping length after 1st branch f ≤ 30m Difference in height(Outdoor Unit ↔ Indoor Unit) H ≤ 50m ( 40m : Outdoor Unit is lower)*** Difference in height (Indoor Unit ↔ Indoor Unit) h ≤ 15m

1 Outdoor Unit

Example : 6 Indoor Units connected

: Outdoor Unit : 1st branch : Indoor Units : Sealing

➲ Main pipe diameter (A)

- Liquid pipe : Ø12.7mm(1/2 inch)

- Gas pipe : Ø28.58mm(11/8 inch)

➲ Total piping length = A+a+b+c+d+e+f ≤ 220m

L 120m

Branch pipe can not be used after header

*: Must be satisfied both conditions Caution : ***:Indoor Unit should be installed at lower position than the header.

**: Assume equivalent pipe length

of Y branch to be 0.5m, that of header to be 1m, calculation purpose.

Page 38

38 Outdoor Unit

Refrigerant piping installation

Longest piping length

**Equivalent piping length A+f ≤ 120m A+f ≤ 140m Longest piping length after 1st branch f ≤ 30m Difference in height(Outdoor Unit ↔ Indoor Unit) H ≤ 50m (40m : Outdoor Unit is lower)*** Difference in height (Indoor Unit ↔ Indoor Unit) h ≤ 15m

*: Must be satisfied both conditions Caution : ***:Indoor Unit should be installed at lower position than

the header.

➲ Total piping length = A+a+b+c+d+e+f ≤ 220m

WARNING

Piping length after header branching (a~f) It is recommended that difference of the piping length connected to the Indoor Unit is minimized. Performance difference between Indoor Units may occur.

Branch pipe can not be used after header

2 Outdoor Units

Example : 6 Indoor Units connected

: Outdoor Unit : Header branch : Indoor Units : Sealing : Connection branch pipe

between Outdoor units: ARBL202C

➲ Sub Outdoor Unit ~ Connection branch pipe Pipe diameter (E)

High/Low Pressure Common pipe

(mm)

Ø19.05(3/4 inch) Ø12.7(1/2 inch) Ø28.58(11/

8 inch)

Liquid pipe

(mm)

Gas pipe

(mm)

➲ Connection branch pipe ~ Main pipe diameter (A)

Ø19.05(3/4 inch) Ø38.1(11/2 inch)

Liquid pipe

(mm)

Gas pipe

(mm)

**: Assume equivalent pipe length of Y branch to be 0.5m, that of header to be 1m, calculation purpose.

• Piping length from outdoor branch to outdoor unit ≤ 10m, equivalent lengh : max 13m (for 16HP or more)

10m or less

Page 39

Installation Manual 39

Refrigerant piping installation

Branch pipe can not be used after header

Example : 6 Indoor Units connected

: Outdoor Unit : Header branch : Indoor Units : Sealing : Connection branch pipe

between Outdoor units: ARBL302C

: Connection branch pipe

between Outdoor units: ARBL202C

10m or less

3 Outdoor Units

Longest pipeinglength **

Equivalent piping length A+f ≤ 120m A+f ≤ 140m Longest piping length after 1st branch f ≤ 30m Difference in height(Outdoor Unit ↔ Indoor Unit) H ≤ 50m (40m : Outdoor Unit is lower)*** Difference in height (Indoor Unit ↔ Indoor Unit) h ≤ 15m

*: Must be satisfied both conditions Caution : ***:Indoor Unit should be installed at lower position than the header.

➲ Sub2 Outdoor unit ~ Connection branch pipe Pipe diameter (F)

High/Low Pressure Common pipe

(mm)

Ø19.05(3/4 inch) Ø12.7(1/2 inch) Ø28.58(11/

8 inch)

Liquid pipe

(mm)

Gas pipe

(mm)

High/Low Pressure Common pipe

(mm)

Ø19.05(3/4 inch) Ø19.05(3/4 inch) Ø38.1(11/2 inch)

Liquid pipe

(mm)

Gas pipe

(mm)

➲ Connection branch pipe ~ Connection branch pipe Pipe diameter (E)

➲ Connection branch pipe

~ Main pipe diameter (A)

➲ Total piping length = A+a+b+c+d+e+f ≤ 220m

Ø22.2(7/8 inch) Ø44.5(13/4 inch)

Liquid pipe

(mm)

Gas pipe

(mm)

WARNING

Piping length after header branching (a~f) It is recommended that difference of the piping length connected to the Indoor Unit is minimized. Performance difference between Indoor Units may occur.

**: Assume equivalent pipe length of Y branch to be 0.5m, that of header to be 1m, calculation purpose.

• Piping length from outdoor branch to outdoor unit ≤ 10m, equivalent lengh : max 13m (for 16HP or more)

Page 40

40 Outdoor Unit

Refrigerant piping installation

◆ Combination of Y branch/header method

Longest piping length **Equivalent piping length A+B+b ≤ 120m A+B+b ≤ 140m Longest piping length after 1st branch B+b ≤ 30m Difference in height(Outdoor Unit ↔ Indoor Unit) H ≤ 50m (40m : Outdoor Unit is lower than Indoor Units)*** Difference in height (Indoor Unit ↔ Indoor Unit) h ≤ 15m

1 Outdoor Unit(Half siz

Example : 5 Indoor Units connected

: Outdoor Unit : 1st branch (Y branch)

: Y branch

: Indoor Unit : Header : Sealing

➲ Main pipe diameter (A)

➲ Refrigerant pipe diameter from branch to branch (B,C)

➲ Total piping length = A+B+C+a+b+c+d+e ≤ 220m

H 50m

L 120m

h 15m

*: Must be satisfied both conditions Caution : ***:Indoor Unit should be installed at lower position than the header.

Branch pipe can not be used after header

WARNING

Piping length after header branching (a~f) It is recommended that difference of the piping length connected to the Indoor Unit is minimized. Performance difference between Indoor Units may occur.

Downward Indoor Unit total capacity

[kW(Btu/h)]

~8.3(28,300) Ø9.52(3/8 inch) Ø15.88(5/8 inch)

~17.8(60,700)

Ø12.7(1/2 inch) / 9.52(3/8 inch)

Ø19.05(3/4 inch)

~27.9(95,200) Ø12.7(1/2 inch) Ø25.4(1 inch)

~42.4(144,700) Ø12.7(1/2 inch) Ø28.58(11/

8 inch)

~58.5(199,600) Ø15.88(5/8 inch) Ø31.8(11/4 inch) ~75.4(257,300) Ø19.05(3/4 inch) Ø38.1(11/2 inch)

75.5(257,600)~ Ø22.2(7/

8 inch) Ø44.5(1

4 inch)

Liquid pipe

(mm)

Gas pipe

(mm)

**: Assume equivalent

pipe length of Y branch to be 0.5m, that of header to be 1m, calculation purpose.

Apply 5, 6HP model only

Page 41

Installation Manual 41

Refrigerant piping installation

1 Outdoor Unit

Example : 5 Indoor Units connected

: Outdoor Unit : 1st branch (Y branch)

: Y branch

: Indoor Unit : Header : Sealing

➲ Main pipe diameter (A)

- Liquid pipe : Ø12.7mm(1/2 inch)

- Gas pipe : Ø28.58mm(1

/8 inch)

➲ Refrigerant pipe diameter from branch to branch (B,C)

➲ Total piping length = A+B+C+a+b+c+d+e ≤ 220m

L 120m

*: Must be satisfied both conditions Caution : ***:Indoor Unit should be installed at lower position than the header.

Branch pipe can not be used after header

WARNING

Pipe length after header branching (a~f) It is recommended that difference of the pipe length connected to the Indoor Unit is minimized. Performance difference between Indoor Units may occur.

Downward Indoor Unit total capacity

[kW(Btu/h)]

~8.3(28,300) Ø9.52(3/8 inch) Ø15.88(5/8 inch) ~17.8(60,700) Ø12.7(1/2 inch) Ø19.05(3/4 inch) ~27.9(95,200) Ø12.7(1/2 inch) Ø25.4(1 inch)

~42.4(144,700) Ø12.7(1/2 inch) Ø28.58(11/

8 inch)

~58.5(199,600) Ø15.88(5/8 inch) Ø31.8(11/4 inch) ~75.4(257,300) Ø19.05(3/4 inch) Ø38.1(11/

2 inch)

75.5(257,600)~ Ø22.2(

/8 inch) Ø44.5(13/4 inch)

Liquid pipe

(mm)

Gas pipe

(mm)

**: Assume equivalent

pipe length of Y branch to be 0.5m, that of header to be 1m, calculation purpose.

Page 42

42 Outdoor Unit

Refrigerant piping installation

Branch pipe can not be used after header

Example : 5 Indoor Units connected

: Outdoor Unit : 1st branch(Y branch) : Y branch : Indoor Unit : Connection branch pipe

between Outdoor units:

ARBL202C : Header : Sealing

➲ Sub Outdoor Unit ~ Connection branch pipe Pipe diameter (E)

High/Low Pressure Common pipe

(mm)

Ø19.05(3/4 inch) Ø12.7(1/2 inch) Ø28.58(11/

8 inch)

Liquid pipe

(mm)

Gas pipe

(mm)

➲ Connection branch pipe ~ Main pipe diameter (A)

Ø19.05(3/4 inch) Ø38.1(11/

2 inch)

Liquid pipe

(mm)

Gas pipe

(mm)

10m or less

➲ Refrigerant pipe diameter from branch to branch (B,C)

Downward Indoor Unit total capacity

[kW(Btu/h)]

~8.3(28,300) Ø9.52(3/8 inch) Ø15.88(5/8 inch) ~17.8(60,700) Ø12.7(1/2 inch) Ø19.05(3/4 inch) ~27.9(95,200) Ø12.7(1/2 inch) Ø25.4(1 inch)

~42.4(144,700) Ø12.7(1/2 inch) Ø28.58(11/

8 inch)

~58.5(199,600) Ø15.88(5/8 inch) Ø31.8(11/4 inch) ~75.4(257,300) Ø19.05(3/4 inch) Ø38.1(11/2 inch)

75.5(257,600)~ Ø22.2(7/8 inch) Ø44.5(13/4 inch)

Liquid pipe

(mm)

Gas pipe

(mm)

2 Outdoor Units

Page 43

Installation Manual 43

Refrigerant piping installation

Branch pipe can not be used after header

3 Outdoor Units

Example : 5 Indoor Units connected

: Outdoor Unit : 1st branch(Y branch)

: Y branch

: Indoor Unit : Connection branch pipe

between Outdoor units: ARBL302C

: Connection branch pipe

between Outdoor units:

ARBL202C : Header : Sealing

➲ Sub2 Outdoor unit ~ Connection branch pipe Pipe diameter (F)

High/Low Pressure Common pipe

(mm)

Ø19.05(3/4 inch) Ø12.7(1/2 inch) Ø28.58(11/8 inch)

Liquid pipe

(mm)

Gas pipe

(mm)

High/Low Pressure Common pipe

(mm)

Ø19.05(3/4 inch) Ø19.05(3/4 inch) Ø38.1(11/2 inch)

Liquid pipe

(mm)

Gas pipe

(mm)

➲ Connection branch pipe ~ Connection branch pipe Pipe diameter (E)

➲ Connection branch pipe ~ Main pipe diameter (A)

Ø22.2(7/8 inch) Ø44.5(13/4 inch)

Liquid pipe

(mm)

Gas pipe

(mm)

10m or less

➲ Refrigerant pipe diameter from branch to branch (B,C)

Downward Indoor Unit total capacity

[kW(Btu/h)]

~8.3(28,300) Ø9.52(3/8 inch) Ø15.88(5/8 inch) ~17.8(60,700) Ø12.7(1/2 inch) Ø19.05(3/4 inch) ~27.9(95,200) Ø12.7(1/2 inch) Ø25.4(1 inch)

~42.4(144,700) Ø12.7(1/2 inch) Ø28.58(11/

8 inch)

~58.5(199,600) Ø15.88(5/8 inch) Ø31.8(11/4 inch) ~75.4(257,300) Ø19.05(3/4 inch) Ø38.1(11/2 inch)

75.5(257,600)~ Ø22.2(7/8 inch) Ø44.5(1

/4 inch)

Liquid pipe

(mm)

Gas pipe

(mm)

Page 44

44 Outdoor Unit

Refrigerant piping installation

➲ Total piping length = A+B+C+a+b+c+d+e ≤ 220m

Longest piping length Equivalent piping length A+B+b ≤ 120m A+B+b ≤ 140m Longest piping length after 1st branch B+b ≤ 30m Difference in height(Outdoor Unit ↔ Indoor) H ≤ 50m (40m : Outdoor Unit is lower than Indoor Units)** Difference in height (Indoor Unit ↔ Indoor Unit) h ≤ 15m

*: Must be satisfied both conditions

Caution : ***:Indoor Unit should be installed at lower position than the header.

WARNING

Piping length after header branching (a~f) It is recommended that difference of the piping length connected to the Indoor Unit is minimized. Performance difference between Indoor Units may occur.

**: Assume equivalent pipe length of Y branch to be 0.5m, that of header to be 1m, calculation purpose.

• Piping length from outdoor branch to outdoor unit ≤ 10m, equivalent lengh : max 13m (for 16HP or more)

Page 45

Installation Manual 45

Refrigerant piping installation

◆ Indoor Unit Connection

➲ Indoor Unit connecting pipe from branch (a,b,c,d,e)

Total piping length ≤ 220m Total piping length ≤ 220m

1 Outdoor Unit(Half size) 1 Outdoor Unit

2 Outdoor Units 3 Outdoor Units

Total piping length ≤ 220m Total piping length ≤ 220m

Indoor Unit capacity [kW(Btu/h)]

~4.0(13,600) ~9.0(30,700)

15.0(51,200)

Ø6.35(1/4 inch) Ø9.52(3/8 inch) Ø9.52(3/8 inch)

Ø12.7(1/2 inch) Ø15.88(5/8 inch) Ø19.05(3/4 inch)

Liquid pipe

[mm(inch)]

Gas pipe

[mm(inch)]

10m or less

H 50m

L 120m

h 15m

L 120m

Exception: Wide Art Cool(4.0kW(13,600 Btu/h)): Liquid pipe(Ø9.52(3/8 inch)), Gas pipe(Ø15.88(5/8 inch))

Page 46

46 Outdoor Unit

Refrigerant piping installation

◆ The Amount of Refrigerant

The calculation of the additional charge should take account of the length of pipe.

WARNING

Regulation for refrigerant leakage : the amount of refrigerant leakage should satisfy the following equation for human safety.

❐ If the above equation can not be satisfied, then follow the following steps.

- Selection of air conditioning system: select one of the next

1. Effective opening part Installation

2. Reconfirmation of Outdoor Unit capacity and piping length

3. Reduction of the amount of refrigerant

4. 2 or more security device installation of alarm for gas leakage

- Change Indoor Unit type : installation position should be over 2m from the floor (Wall mounted type → Cassette type)

- Adoption of ventilation system : choose ordinary ventilation system or building ventilation system

- Limitation in piping work : design for earthquake-proof and prevention against thermal stress

Total amount of refrigerant in the system

0.3 ( kg / m3)

Volume of the room at which Indoor Unit of the least capacity is installed

CAUTION

Refer to Outdoor Units Information due to differ CF(Correction Factor) as the Outdoor Units

Product Charge(1Unit)=10kg

= + + + + +

Additional charge (kg)

Total liquid pipe (m): Ø22.2mm Total liquid pipe (m): Ø19.05mm

Total liquid pipe (m): Ø15.88mm Total liquid pipe (m): Ø12.7mm

Total liquid pipe (m): Ø9.52mm Total liquid pipe (m): Ø6.35mm

CF(kg)

(Correction Factor)

Total amount(kg)

x 0.4(kg/m) x 0.3(kg/m) x 0.2(kg/m) x 0.12(kg/m) x 0.06(kg/m) x 0.025(kg/m)

A B

Ex) 10HP

c d

34 5

B B B

Outdoor Unit Indoor Unit A: ø12.7, 60m B: ø9.52, 20m C: ø12.7, 20m

Additional Charge = A x 0.12 + B x 0.06 + C x 0.12 + (a+b+c+d+e) x 0.025 + CF

= 60 x 0.12 + 20 x 0.06 + 20 x 0.12

+ (10 x 5) x 0.025 - 1(CF)

= 11.05 (kg)

a: ø6.35, 10m b: ø6.35, 10m c: ø6.35, 10m d: ø6.35, 10m e: ø6.35, 10m

Page 47

Installation Manual 47

Refrigerant piping installation

◆ Distribution Method

1. Line Distribution

With line distribution method, it is possible to make the first or the second main pipe distribution within the third branch, and do not make the main pipe distribution, at or after the fourth branch.

2. Vertical Distribution

Ensure that the branch pipes are attached vertically.

3. The others

Header

Sub

Main

Sub

Main

Correct Incorrect

1st

2nd

3rd

Sub

Main

Sub

Main

Sub

Main

Sub

Main

Sub

Main

1st

3rd

2nd

1st

Main pipe

Distribution

2nd

Main pipe

Distribution

3rd main pipe distribution

Page 48

48 Outdoor Unit

Refrigerant piping installation

Branch pipe Fitting

Y branch

To Outdoor Unit To Branch Piping or Indoor Unit

Facing

upwards

Facing

downwards

Within ± 3° Within ± 3°

Viewed from point A in direction of arrow

Horizontal plane

Within +/- 10°

Insulator

(included with kit)

Liquid and Gas pipe joints

Insulator for field piping

Tape (field supply)

Header

To outdoor unit To indoor unit

A B

• Ensure that the branch pipes are attached horizontally or vertically (see the diagram below.)

• There is no limitation on the joint mounting configuration.

• If the diameter of the refrigerant piping selected by the procedures described is different from the size

of the joint, the connecting section should be cut with a pipe cutter.

• Branch pipe should be insulated with the insulator in each kit.

• When the number of pipes to be connected is

smaller than the number of header branches, install a cap to the unconnected branches.

• The Indoor Unit having larger capacity must be installed closer to than smaller one.

• If the diameter of the refrigerant piping selected by the procedures described is different from the size of the joint,

the connecting section

should be cut with a pipe cutter.

Pipe cutter

Page 49

Installation Manual 49

Refrigerant piping installation

• When the number of Indoor Units to be connected to the branch pipes is less than the number of branch pipes available for connection then cap pipes should be fitted to the surplus branches.

• Fit branch pipe lie in a horizontal plane.

• Header should be insulated with the insulator in each kit.

• Joints between branch and pipe should be sealed with the tape included in each kit.

• Any cap pipe should be insulated using the insulator provided with each kit and then taped as described

above.

Piched pipe

Horizontal plane

View from point B in the direction of the arrow

Insulate the header using the insulation material attached to the branch pipe kit as shown in the figure.

Insulator

Insulator of field pipe

Tape

Cap pipe

Insulator for cap pipe

Page 50

50 Outdoor Unit

Refrigerant piping installation

◆ Y branch pipe

Models Gas pipe Liquid pipe

ARBL102G

ARBL202S

ARBL202L

ARBL202M

ARBL302S

ARBL302L

ARBL302M

ARBL102L

ø44.5 ø38.1

ø38.1

ø31.8

ø28.58

ø25.4

ø28.58

ø31.8

ø22.2 ø19.05

ø19.05 ø15.88

ø12.7

ø15.88

ø9.52

ø44.5 ø38.1

ø38.1

ø31.8

ø28.58

ø25.4

ø28.58

ø31.8

ø22.2 ø19.05

ø19.05ø22.2

ø15.88

ø19.05

ø22.2

ø15.88

ø12.7

ø38.1 ø31.8

ø19.05 ø15.88

ø28.58

ø12.7

ø15.88

ø19.05

ø25.4

ø12.7

ø6.35

ø9.52

ø12.7

ø38.1 ø31.8

ø28.58

ø19.05

ø25.4

ø19.05 ø15.88

ø28.58

ø12.7

ø6.35

ø9.52

ø12.7

ø38.1

ø31.8

ø19.05

ø25.4

ø19.05 ø15.88

ø28.58

ø25.4

ø12.7

ø6.35

ø9.52

ø12.7

ø25.4 ø19.05

ø19.05

ø15.88

ø22.2

ø12.7

ø9.52

ø6.35

ARBL052S

ø15.88

ø12.7

ø9.52

ø6.35

ø19.05

ARBL102S

ø15.88

ø12.7

ø9.52

ø6.35

ø19.05 ø19.05

ø28.58 ø25.4

ø15.88

ø9.52

ø9.52 ø6.35

ø15.88

ø12.7

ø19.05

ø28.58 ø25.4

ø15.88

ø15.88 ø12.7

ø9.52

ø6.35

ø12.7

ø19.05

[unit:mm]

ø44.5 ø38.1

ø22.2 ø19.05

ø15.88

ø6.35

ø9.52

ø12.7

ø31.8

ø12.7

ø15.88

ø19.05

ø25.4

ARBL052L

Page 51

Installation Manual 51

Refrigerant piping installation

◆ Header

Ø15.88

Ø12.7

Ø15.88

Ø12.7

Ø19.05

Ø15.88

Ø12.7

Ø15.88

Ø12.7

Ø19.05

[unit:mm]

Ø9.52 Ø9.52

Ø6.35

Ø12.7

Ø9.52

Ø6.35

Ø9.52

Ø6.35

Ø12.7

Ø15.88

Ø12.7

Ø28.58

Ø19.05

Ø15.88

Ø9.52

Ø6.35

Ø9.52

Ø12.7

Ø6.35

Ø15.88

Ø12.7

Ø28.58

Ø19.05

Ø15.88

Ø9.52

Ø6.35

Ø9.52

Ø12.7

Ø6.35

Ø15.88

Ø12.7

Ø28.58

Ø19.05

Ø15.88

Ø9.52Ø6.35

Ø9.52

Ø12.7

Ø6.35

Ø15.88

Ø19.05

Ø6.35

Ø9.52

Ø9.52 Ø6.35

Ø15.88

Ø19.05

Ø31.8

Ø38.1

Ø12.7

Models Gas pipe Liquid pipe

OD19.05 15.88 12.7 OD12.7 9.52

OD19.05 15.88 12.7

OD12.7 9.52

OD38.1 34.9 28.58

OD19.05 15.88

OD28.58 22.2 OD12.7 9.52

OD28.58 22.2

OD12.7 9.52

OD28.58 22.2 OD12.7 9.52

4 branch

ARBL054

7 branch

ARBL057

4 branch

ARBL104

7 branch

ARBL107

10 branch

ARBL1010

10 branch

ARBL2010

Page 52

52 Outdoor Unit

Refrigerant piping installation

Leak Test and Vacuum

(1) Leak test

Leak test should be m

ade by pressurizing nitrogen gas to 2.94 MPa(30.0kg/cm

). For the test method, refer to the following figure. (Make a test with the service valves closed. Be also sure to pressurize Liquid pipe, Gas pipe and High/Low Pressure Common pipe) The test result can be judged good if the pressure has not be reduced after leaving for about one day after completion of nitrogen gas pressurization.

Sub2 Outdoor Unit Sub1 Outdoor Unit Main Outdoor Unit

Nitrogen Gas Cylinder

Common pipe

High/Low Pressure

Liquide pipe

Gas pipe

CloseClose

Common pipe

High/Low Pressure

Liquide pipe

Gas pipe

Common pipe

High/Low Pressure

Liquide pipe

Gas pipe

Liquid Side

Indoor Unit

Gas Side

Page 53

Installation Manual 53

Refrigerant piping installation

(2) Vacuum

Vacuum should be made from the service port provided on the Outdoor Unit’s service valve to the vacuum pump commonly used for Liquid pipe, Gas pipe and High/Low Pressure Common pipe. (Make Vacuum from Liquid pipe, Gas pipe and High/Low Pressure Common pipe with the service valve closed.) * Never perform air purging using refrigerant.

WARNING

When installing and moving the air conditioner to another site, recharge after perfect evacuation.

- If a different refrigerant or air is mixed with the original refrigerant, the refrigerant cycle may malfunction and the unit may be damaged.

Note : Always add an appropriate amount of refrigerant. (For the refrigerant additional charge)

Too much or too little refrigerant will cause trouble.

Sub2 Outdoor Unit Sub1 Outdoor Unit Main Outdoor Unit

Vacuum pump

Common pipe

High/Low Pressure

Liquide pipe

Gas pipe

CloseClose

Common pipe

High/Low Pressure

Liquide pipe

Gas pipe

Common pipe

High/Low Pressure

Liquide pipe

Gas pipe

Liquid Side

Scale Use a graviometer. (One that can measure down to 0.1 kg.). If you are unable to prepare such a high-precision gravimeter

Gas Side

you may use a charge cylinder.

• Vacuum should be done for 3 hours or more after the pressure is under 5 torr.

Indoor Unit

Page 54

54 Outdoor Unit

Refrigerant piping installation

Thermal insulation of refrigerant piping

Heat

insulation

material

Outer

covering

Glass fiber Adhesive + Heat - resistant polyethylene foam + Adhesive tape Indoor Vinyl tape Floor exposed

Water-proof hemp cloth + Bronze asphalt

Outdoor

Water-proof hemp cloth + Zinc plate + Oily paint

Note: When using polyethylene cover as co vering material, asphalt roofing shall not be required.

• Do not insulate gas or low pressure pipe and liquid or high pressure pipe together.

• Be sure to fully insulate connecting portion.

Liquid pipe Gas pipe Power lines Finishing tape Insulating material

Bad example

Good example

These parts are not insulated.

B A C

A B C

A B C D E

Transmission lines

Liquid pipe

Transmission lines

Separation

Gas pipe Power lines Finishing tape Insulating material

A B C D E F

Heat insulation material Pipe Outer covering

(Wind the connection part and cutting part of heat insulation material with a finishing tape.)

Power lines

Be sure to give insulation work to refrigerant piping by covering liquid pipe and gas pipe separately with enough thickness heat-resistant polyethylene, so that no gap is observed in the joint between Indoor Unit and insulating material, and insulating materials themselves. When insulation work is insufficient, there is a possibility of condensation drip, etc. Pay special attention to insulation work to ceiling plenum.

1m1m

Inner wall (concealed)

Floor (fireproofing)

Penetrating portion on fire

limit and boundary wall

Roof pipe shaft

Outer wall Outer wall (exposed)

Penetrations

Sleeve Heat insulating material Lagging Caulking material Band Waterproofing layer Sleeve with edge Lagging material Mortar or other incombustible caulking Incombustible heat insulation material

When filling a gap with mortar, cover the penetration part with steel plate so that the insulation material will not be caved in. For this part, use incombustible materials for both insulation and covering.(Vinyl covering should not be used.)

Page 55

Installation Manual 55

Electrical Wiring

Areas of Caution

Remote control

Indoor

Unit

Outdoor Unit

Indoor

Unit

Remote control

Indoor

Unit

Indoor

Unit

Remote control

Indoor

Unit

Indoor

Unit

Indoor

Unit

Indoor

Unit

CAUTION

Be sure to put Outdoor Unit to earth. Do not connect earth line to any gas pipe, water pipe, lightening rod or telephone earth line. If earth is incomplete, it may cause an electric shock.

WARNING

Be sure to have authorized electric engineers do electric work using special circuits in accordance with regulations and this installation manual. If power supply circuit has a lack of capacity or electric work deficiency, it may cause an electric shock or fire.

1. Follow ordinance of your governmental organization for technical standard related to electrical equipment, wiring regulations and guidance of each electric power company.

2. Install the Outdoor Unit transmission line away from the power source wiring so that it is not affected by electric noise from the power source. (Do not run it through the same conduit.)

3. Be sure to provide designated grounding work to Outdoor Unit.

4. Give some allowance to wiring for electrical part box of Indoor and Outdoor Units, because the box is sometimes removed at the time of service work.

5. Never connect the main power source to terminal block of transmission line. If connected, electrical parts will be burnt out.

6. Use 2-core shield cable for transmission line.(O mark in the figure below) If transmission lines of different systems are wired with the same multiplecore cable, the resultant poor transmitting and receiving will cause erroneous operations. ( mark in the figure below)

7. Only the transmission line specified should be connected to the terminal block for Outdoor Unit transmission.

2-Core Shield Cable Multi-Core Cable

Page 56

56 Outdoor Unit

Electrical Wiring

Remote control

Indoor

Unit

Indoor

Unit

Remote control

Indoor

Unit

Indoor

Unit

Remote control

Indoor

Unit

Indoor

Unit

Remote control

Indoor

Unit

Indoor

Unit

Outdoor Unit

Main Sub1 Sub2

Remote control

Indoor

Unit

Indoor

Unit

Remote control

Outdoor Unit

Remote control

Indoor

Unit

Indoor

Unit

Remote control

Indoor

Unit

Indoor

Unit

Remote control

Indoor

Unit

Indoor

Unit

Remote control

Indoor

Unit

Outdoor Unit

Indoor

Unit

Remote control

Indoor

Unit

Indoor

Unit

Remote control

Indoor

Unit

Indoor

Unit

Indoor

Unit

Indoor

Unit

2-Core Shield Cable Multi-Core Cable

CAUTION

• Use the 2-core shield cables for transmission lines. Never use them together with power cables.

• Never use multi-core cable

• As this unit is equipped with an inverter, to install a phase leading capacitor not only will deterio-

rate power factor improvement effect, but also may cause capacitor abnormal heating. Therefore, never install a phase leading capacitor.

• Keep power imbalance within 2% of the supply rating. Large imbalance will shorten the life of the smoothing capacitor.

Page 57

Installation Manual 57

Electrical Wiring

Control box and connecting position of wiring

- Remove all of the screws on front panel by pulling it forward.

- Connect Main Outdoor Unit with Sub Outdoor Units, and Main Outdoor with Indoor Units through the terminal block for transmission lines.

- When making an indoor/outdoor connection with shielded wiring, connect the shield ground to the earth screw. When making a central control system connection with shielded wiring, use the terminal block for central control.

WARNING

The temperature sensor for outdoor air should not be exposed to direct sunlight.

- Provide an appropriate cover to intercept direct sunlight.

Front Panel

Main Sub1, 2

Interter

Board

Radiation Panel (Inverter Comp Driver)

Reactor

(Inverter Comp.)

Cover

Capacitor

Control Board for Outdoor Unit Inverter Fan

Noise Filter

Magnetic

Fuse

EOCR

Main PCB

Capacitor for Sub Outdoor Unit Fan

Transformer

Connect outdoor unit here by using the distribution panel ground line.

Magnetic

EOCR

Sub PCB

Transformer

Ground Terminal for Transmission Line Shield

Take care polarity of 3 phase, type of power supply on the terminal console for the main power supply

Page 58

58 Outdoor Unit

Electrical Wiring

Transmission and Power Lines

1) Transmission cable

• Types : shielding wire CVVS or CPEVS

• Diameter : over 1.25mm

• Insulation material : PVC

• Maximum allowable temperature: 60°C

• Maximum allowable line length: under 220m

2) Remote control cable

• Types : 3-core cable

3) Simple central control cable

• Types : 4-core cable (Shielding wire)

• Diameter : over 1.25mm

• Insulation material : PVC

4) Separation of transmission and power lines

• If transmission and power lines are run alongside each other then here is a strong likelihood of operational faults developing due to interference in the signal wiring caused by electrostatic and electromagnetic coupling. The tables below indicates our recommendation as to appropriate spacing of transmission and power lines where these are to be run side by side

Note:

1. The figures are based on assumed length of parallel cabling up to 100m. For length in excess of 100m

the figures will have to be recalculated in direct proportion to the additional length of line involved.

2. If the power supply waveform continues to exhibit some distortion the recommended spacing in the

table should be increased.

• If the lines are laid inside conduits then the following point must also be taken into account when grouping various lines together for introduction into the conduits

- power lines(including power supply to air conditioner) and signal lines must not be laid inside the same

- In the same way, when grouping the lines power and signal lines should not be bunched together.

Current capacity of power line Spacing

10A 300mm 50A 500mm

100A 1000mm

100A or more 1500mm

100V or more

CAUTION

■ If apparatus is not properly earthed then there is always a risk of electric shocks, the earthing of the apparatus must be carried out by a qualified person.

■ Use a power wire pipe for the power wiring

Page 59

Installation Manual 59

Electrical Wiring

Minimum Wire Thickness(mm2)

Branch

Model

8–81 Outdoor Unit

Ground

Main Cable

Breaker for Wiring

(NFB)

50A

Breaker for Current

Leakage(ELB)

50A 100mA 0.1 sec. or less

424

Indoor Unit (All Models)

30A 30A 30mA 0.1 sec. or less

Minimum Wire Thickness(mm2)

Branch

Model

5.5–5.51 Outdoor Unit((5, 6HP)

Ground

Main Cable

Breaker for Wiring

(NFB)

30A

Breaker for Current

Leakage(ELB)

30A 100mA 0.1 sec. or less

222

Indoor Unit (All Models)

30A 30A 30mA 0.1 sec. or less

Minimum Wire Thickness(mm2)

Branch

Model

14–142 Outdoor Units

GroundMain Cable

Breaker for Wiring

(NFB)

75A(50Hz),

85A(60Hz)

Breaker for Current

Leakage(ELB)

30A 100mA 0.1 sec. or less

424

Indoor Unit (All Models)

30A 20A 30mA 0.1 sec. or less

Minimum Wire Thickness(mm2)

Branch

Model

38–383 Outdoor Units

Ground

Main Cable

Breaker for Wiring

(NFB)

110A(50Hz),

120A(60Hz)

Breaker for Current

Leakage(ELB)

125A 200mA 0.1 sec. or less

5.525.5

Indoor Unit (Outdoor Unit 30HP)

Indoor Unit (Outdoor Unit 40HP)

50A 50A 50mA 0.1 sec. or less

828 60A 60A 60mA 0.1 sec. or less

1. Use a separate power supply for the Outdoor Unit and Indoor Unit.

2. Bear in mind ambient conditions (ambient temperature,direct sunlight, rain water,etc.) when proceeding with the wiring and connections.

3. The wire size is the minimum value for metal conduit wiring. The power cord size should be 1 rank thicker taking into account the line voltage drops. Make sure the power-supply voltage does not drop more than 10%.

4. Specific wiring requirements should adhere to the wiring regulations of the region.

5. Power supply cords of parts of appliances for outdoor use should not be lighter than polychloroprene sheathed flexible cord.

6. Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply.

7. All the wiring should comply with the local electrical legislations.

WARNING

• Be sure to use specified wires for connections so that no external force is imparted to terminal connections. If connections are not fixed firmly, it may cause heating or fire.

• Be sure to use the appropriate type of overcurrent protection switch. Note that generated overcurrent may include some amount of direct current.

CAUTION

•

Some installation site may require attachment of an earth leakage breaker. If no earth leakage breaker is installed, it may cause an electric shock.

• Do not use anything other than breaker and fuse with correct capacity. Using fuse and wire or copper wire with too large

capacity may cause a malfunction of unit or fire.

❈ Power line between

Main Outdoor Unit and Sub Outdoor Unit: 8mm

❈ Power line between

Main Outdoor Unit and Sub Outdoor Unit: 14mm

❈ Power line between

Sub 1 Outdoor Unit and Sub 2 Outdoor Unit: 8mm2.

◆ Wiring of Main Power Supply and Equipment Capacity

Schematic Drawing of Wiring (Example)

Outdoor Unit ((3Ø, 380 ~415V, 50Hz )(3Ø, 380V, 60Hz)) Indoor Unit(1Ø, 220V, 50Hz)(1Ø, 220V, 60Hz))

Page 60

60 Outdoor Unit

◆ Example Connection of Transmission Cable

1 Outdoor Unit(Half size)

3 Phase

Power supply

50Hz 380~415V

Power supply

1 Phase 50Hz

220V

3 Phase Power line (R, S, T) Transmission line (3 line): Wired remote control Single Phase of power supply line (L, N) Transmission line (2 shield line): Between Indoor Unit and Outdoor Unit

Power supply switch (Switch fuse)

Outdoor Unit Control Box

Indoor unitCentral controller

ABVcc GNDDC

34 34 34

The GND terminal is a '–' terminal for the central controller, not Ground Line

WARNING

• Indoor Unit ground Lines are required for preventing electrical shock accident in current leakage, Transmission disorder by noise effect and motor current leakage (without connection to pipe).

• Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply.

Electrical Wiring

Page 61

Installation Manual 61

Electrical Wiring

◆ Example Connection of Transmission Cable

1 Outdoor Unit

3 Phase

Power supply

50Hz 380~415V

Power supply

1 Phase 50Hz

220V

3 Phase Power line (R, S, T) Transmission line (3 line): Wired remote control Single Phase of power supply line (L, N) Transmission line (2 shield line): Between Indoor Unit and Outdoor Unit

Power supply switch (Switch fuse)

Outdoor Unit Control Box

Indoor unitCentral controller

ABVcc GNDDC

34 34 34

The GND terminal is a '–' terminal for the central controller, not Ground Line

WARNING

• Indoor Unit ground Lines are required for preventing electrical shock accident in current leakage, Transmission disorder by noise effect and motor current leakage (without connection to pipe).

• Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply.

Page 62

62 Outdoor Unit

Electrical Wiring

◆ Example Connection of Transmission Cable

2 Outdoor Units

Power supply switch (Switch fuse)

3 Phase Power line(R, S, T) Transmission line (3 line): Wired remote control Single Phase of power supply line (L, N)

Transmission line (2 shield line): Between Outdoor Unit and Outdoor Unit Transmission line (2 shield line): Between Indoor Unit and Outdoor Unit

3 Phase

Power supply

50Hz 380~415V

Power supply

1 Phase 50Hz

220V

Pull Box

Main Power supply Line

Branch Line

Between Indoor and Main Outdoor unit Between Main Outdoor and Sub Outdoor unit

Indoor

Unit

Outdoor

Unit

Central

Controller

Indoor

Unit

Outdoor

Unit

Central

Controller

Main Outdoor Unit

Sub Outdoor Unit

The GND terminal is a '–' terminal for the central controller, not Ground Line

WARNING

• Indoor Unit ground Lines are required for preventing electrical shock accident in current leakage, Transmission disorder by noise effect and motor current leakage (without connection to pipe).

• Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply.

Page 63

Installation Manual 63

Electrical Wiring

◆ Example Connection of Transmission Cable

3 Outdoor Units

Power supply switch (Switch fuse)

3 Phase Power line (R, S, T) Transmission line (3 line): Wired remote control Single Phase of power supply line (L, N)

Transmission line (2 shield line): Between Outdoor Unit and Outdoor Unit

3 Phase

Power supply

50Hz 380~415V

Power supply

1 Phase 50Hz

220V

Pull Box

Main Power supply Line

Branch Line

Main

Sub1

Sub2

Transmission line (2 shield line): Between Indoor Unit and Outdoor Unit

Between Indoor and Main Outdoor unit Between Main Outdoor and Sub Outdoor unit

Indoor

Unit

Outdoor

Unit

Central

Controller

Indoor

Unit

Outdoor

Unit

Outdoor

Unit

Central

Controller

Main Outdoor Unit

Sub 1 Outdoor Unit

Outdoor

Unit

Sub 2 Outdoor Unit

The GND terminal is a '–' terminal for the central controller, not Ground Line

WARNING

• Indoor Unit ground Lines are required for preventing electrical shock accident in current leakage,

Transmission disorder by noise effect and motor current leakage (without connection to pipe).

• Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the

power supply.

Page 64

64 Outdoor Unit

Electrical Wiring

◆ Example Connection of Transmission Cable

1 Outdoor Unit(Half size)

3 Phase 4 Wires

Power supply

60Hz 380V

Power supply

1 Phase 60Hz

220V

3 Phase 4 Wires Power line (R, S, T) Transmission line (3 line): Wired remote control Single Phase of power supply line(L, N) Transmission line (2 shield line): Between Indoor Unit and Outdoor Unit

Power supply switch (Switch fuse)

Outdoor Unit Control Box

Indoor unitCentral controller

ABVcc GNDDC

34 34 34

The GND terminal is a '–' terminal for the central controller, not Ground Line

WARNING

• Indoor Unit ground Lines are required for preventing electrical shock accident in current leakage, Transmission disorder by noise effect and motor current leakage (without connection to pipe).

• Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply.

Page 65

Installation Manual 65

Electrical Wiring

◆ Example Connection of Transmission Cable

1 Outdoor Unit

3 Phase 4 Wires

Power supply

60Hz 380V

Power supply

1 Phase 60Hz

220V

3 Phase 4 Wires Power line (R, S, T) Transmission line (3 line): Wired remote control Single Phase of power supply line (L, N) Transmission line (2 shield line): Between Indoor Unit and Outdoor Unit

Power supply switch (Switch fuse)

Outdoor Unit Control Box

Indoor unitCentral controller

ABVcc GNDDC

34 34 34

The GND terminal is a '–' terminal for the central controller, not Ground Line

WARNING

• Indoor Unit ground Lines are required for preventing electrical shock accident in current leakage, Transmission disorder by noise effect and motor current leakage (without connection to pipe).

• Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply.

Page 66

66 Outdoor Unit

Electrical Wiring

◆ Example Connection of Transmission Cable

2 Outdoor Units

Power supply switch (Switch fuse)

3 Phase 4 Wires Power line (R, S, T) Transmission line (3 line): Wired remote control Single Phase of power supply line (L, N)

Transmission line (2 shield line): Between Outdoor Unit and Outdoor Unit Transmission line (2 shield line): Between Indoor Unit and Outdoor Unit

3 Phase 4 Wires

Power supply

60Hz 380V

Power supply

1 Phase 60Hz

220V

Pull Box

Main Power supply Line

Branch Line

Between Indoor and Main Outdoor unit Between Main Outdoor and Sub Outdoor unit

Indoor

Unit

Outdoor

Unit

Central

Controller

Indoor

Unit

Outdoor

Unit

Central

Controller

Main Outdoor Unit

Sub Outdoor Unit

The GND terminal is a '–' terminal for the central controller, not Ground Line

WARNING

• Indoor Unit ground Lines are required for preventing electrical shock accident in current leakage, Transmission disorder by noise effect and motor current leakage (without connection to pipe).

• Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply.

Page 67

Installation Manual 67

Electrical Wiring

◆ Example Connection of Transmission Cable

3 Outdoor Units

Power supply switch (Switch fuse)

3 Phase 4 Wires Power line (R, S, T) Transmission line (3 line): Wired remote control Single Phase of power supply line (L, N)

Transmission line (2 shield line): Between Outdoor Unit and Outdoor Unit

3 Phase 4 Wires

Power supply

60Hz 380V

Power supply

1 Phase 60Hz

220V

Pull Box

Main Power supply Line

Branch Line

Main

Sub1

Sub2

Transmission line (2 shield line): Between Indoor Unit and Outdoor Unit

Between Indoor and Main Outdoor unit Between Main Outdoor and Sub Outdoor unit

Indoor

Unit

Outdoor

Unit

Central

Controller

Indoor

Unit

Outdoor

Unit

Outdoor

Unit

Central

Controller

Main Outdoor Unit

Sub 1 Outdoor Unit

Outdoor

Unit

Sub 2 Outdoor Unit

The GND terminal is a '–' terminal for the central controller, not Ground Line

WARNING

• Indoor Unit ground Lines are required for preventing electrical shock accident in current leakage, Transmission disorder by noise effect and motor current leakage (without connection to pipe).

• Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply.

Page 68

68 Outdoor Unit

Electrical Wiring

WARNING

• Be sure to use specified wires for connections so that no external force is imparted to terminal connections. If connections are not fixed firmly, it may cause heating or fire.

• Be sure to use the appropriate type of overcurrent protection switch. Note that generated overcurrent may include some amount of direct current.

CAUTION

•

Some installation site may require attachment of an earth leakage breaker. If no earth leakage breaker is installed, it may cause an electric shock.

• Do not use anything other than breaker and fuse with correct capacity. Using fuse and wire or copper wire with too large capacity may cause a malfunction of unit or fire.

1. Use a separate power supply for the Outdoor Unit and Indoor Unit.

2. Bear in mind ambient conditions (ambient temperature,direct sunlight, rain water,etc.) when proceeding with the wiring and connections.

4. Specific wiring requirements should adhere to the wiring regulations of the region.

5. Power supply cords of parts of appliances for outdoor use should not be lighter than polychloroprene sheathed flexible cord.

6. Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply.

7. All the wiring should comply with the local electrical legislations.

❈ Power line between Main Outdoor

Unit and Sub Outdoor Unit: 8mm

❈ Power line between Main Outdoor

Unit and Sub Outdoor Unit: 14mm

❈ Power line between Sub 1

Outdoor Unit and Sub 2 Outdoor Unit: 8mm2.

◆ Wiring of Main Power Supply and Equipment Capacity

Schematic Drawing of Wiring (Example)

Outdoor Unit(3Ø, 220V, 60Hz) Indoor Unit(1Ø, 220V, 60Hz)

Model

Indoor Unit (All Models)

Model

Indoor Unit (All Models)

Model

Indoor Unit (All Models)

Model

Indoor Unit (Outdoor Unit 30HP)

Indoor Unit (Outdoor Unit 40HP)

Minimum Wire Thickness(mm2)

Main Cable

Minimum Wire Thickness(mm2)

Main Cable

Minimum Wire Thickness(mm2)

Main Cable

Branch

Breaker for Wiring

Ground

8–81 Outdoor Unit(Half size)

222

Ground

22–221 Outdoor Unit

424

GroundMain Cable

60–602 Outdoor Units

424

Ground

100–1003 Outdoor Units

5.525.5

828 60A 60A 60mA 0.1 sec. or less

(NFB)

50A

25A 30A 30mA 0.1 sec. or less

Breaker for Wiring

(NFB)

75A

30A 30A 30mA 0.1 sec. or less

Breaker for Wiring

(NFB)

150A

30A 20A 30mA 0.1 sec. or less

Breaker for Wiring

(NFB)

200A

50A 50A 50mA 0.1 sec. or less

Breaker for Current

Leakage(ELB)

50A 100mA 0.1 sec. or less

Breaker for Current

Leakage(ELB)

75A 100mA 0.1 sec. or less

Breaker for Current

Leakage(ELB)

150A 100mA 0.1 sec. or less

Breaker for Current

Leakage(ELB)

200A 100mA 0.1 sec. or less

Page 69

Installation Manual 69

Electrical Wiring

◆ Example Connection of Transmission Cable

1 Outdoor Unit(Half size)

3 Phase

Power supply

60Hz 220V

Power supply

1 Phase 60Hz

220V

3 Phase Power line (R, S, T) Transmission line (3 line): Wired remote control Single Phase of power supply line (L, N) Transmission line (2 shield line): Between Indoor Unit and Outdoor Unit

Power supply switch (Switch fuse)

Outdoor Unit Control Box

Indoor unitCentral controller

ABVcc GNDDC

34 34 34

The GND terminal is a '–' terminal for the central controller, not Ground Line

WARNING

• Indoor Unit ground Line are required for preventing electrical shock accident in current leakage, Transmission disorder by noise effect and motor leakage current (without connection to pipe).

• Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply.

Page 70

70 Outdoor Unit

Electrical Wiring

◆ Example Connection of Transmission Cable

1 Outdoor Unit

3 Phase

Power supply

60Hz 220V

Power supply

1 Phase 60Hz

220V

3 Phase Power line (R, S, T) Transmission line (3 line): Wired remote control Single Phase of power supply line (L, N) Transmission line (2 shield line): Between Indoor Unit and Outdoor Unit

Power supply switch (Switch fuse)

Outdoor Unit Control Box

Indoor unitCentral controller

ABVcc GNDDC

34 34 34

The GND terminal is a '–' terminal for the central controller, not Ground Line

WARNING

• Indoor Unit ground Line are required for preventing electrical shock accident in current leakage, Transmission disorder by noise effect and motor leakage current (without connection to pipe).

• Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply.

Page 71

Installation Manual 71

Electrical Wiring

◆ Example Connection of Transmission Cable

2 Outdoor Units

Power supply switch (Switch fuse)

3 Phase Power line(R, S, T) Transmission line (3 line): Wired remote control Single Phase of power supply line (L, N)

Transmission line (2 shield line): Between Outdoor Unit and Outdoor Unit Transmission line (2 shield line): Between Indoor Unit and Outdoor Unit

3 Phase

Power supply

60Hz 220V

Power supply

1 Phase 60Hz

220V

Pull Box

Main Power supply Line

Branch Line

Between Indoor and Main Outdoor unit Between Main Outdoor and Sub Outdoor unit

Indoor

Unit

Outdoor

Unit

Central

Controller

Indoor

Unit

Outdoor

Unit

Central

Controller

Main Outdoor Unit

Sub Outdoor Unit

The GND terminal is a '–' terminal for the central controller, not Ground Line

WARNING

• Indoor Unit ground Line are required for preventing electrical shock accident in current leakage, Transmission disorder by noise effect and motor leakage current (without connection to pipe).

• Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply.

Page 72

72 Outdoor Unit

Electrical Wiring

◆ Example Connection of Transmission Cable

3 Outdoor Units

Power supply switch (Switch fuse)

3 Phase Power line (R, S, T) Transmission line (3 line): Wired remote control Single Phase of power supply line (L, N)

Transmission line (2 shield line): Between Outdoor Unit and Outdoor Unit

3 Phase

Power supply

60Hz 220V

Power supply

1 Phase 60Hz

220V

Pull Box

Main Power supply Line

Branch Line

Main

Sub1

Sub2

Transmission line (2 shield line): Between Indoor Unit and Outdoor Unit

Between Indoor and Main Outdoor unit Between Main Outdoor and Sub Outdoor unit

Indoor

Unit

Outdoor

Unit

Central

Controller

Indoor

Unit

Outdoor

Unit

Outdoor

Unit

Central

Controller

Main Outdoor Unit

Sub 1 Outdoor Unit

Outdoor

Unit

Sub 2 Outdoor Unit

The GND terminal is a '–' terminal for the central controller, not Ground Line

WARNING

• Indoor Unit ground Line are required for preventing electrical shock accident in current leakage, Transmission disorder by noise effect and motor leakage current (without connection to pipe).

• Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply.

Page 73

Installation Manual 73

Electrical Wiring

Location of setting Switch

Main PCB

Sub1, 2 PCB

7 Segments (Shows setting status)

SW03M (DIP switch)

LED (Shows setting status)

Page 74

74 Outdoor Unit

Electrical Wiring

DIP switch setting

• The Sub Outdoor Unit numbers must be setup as No.1 from the near side from the Main Outdoor Unit.

• For the DIP switch, that far from the button switch becomes number 1.

• Setting check depending on setting of the DIP switch.

(1) You can check that setting values are properly setup as the Main Outdoor Unit is set to 7 segment,

the Sub Outdoor Unit to LED if turning the power of the Outdoor Unit on after setting up the DIP

switch. (2) This function is shown only for 2 seconds after powering up. (3) It is function to check that input is properly done due to a poor contact of the DIP switch.

CAUTION

Product may not properly operate if the relevant DIP switch is not properly setup.

Setting of Main Outdoor Unit Check of Main Outdoor Unit setting

SW03M setting

Factory shipment status Normal mode

Numbers sequentially show on 7 segments after powering up. These numbers show setting status.

Order

1st

2nd

3rd

4th

Number Item

1 7 9

5~40

25 31

Factory shipment status

Cooling Only

H/P

Number showing capacity

Nomal mode

Operation check mode

Setting of Sub Outdoor Unit Check of Sub Outdoor Unit setting

SW03M setting

Factory shipment status Normal mode

Sub1 Outdoor Unit

Sub2 Outdoor Unit

Shows setting status by using 8 LEDs of the Sub Outdoor Unit.

1) LED01Y, LED02Y

: Factory shipment status

2) LED03Y, LED04Y

: Cooling Only

3) LED05Y, LED06Y

: Sub1 Outdoor Unit

4) LED07Y, LED08Y

: Normal mode : Operation check mode

: H/P

: Sub2 Outdoor Unit

Page 75

Installation Manual 75

Electrical Wiring

7 Segments

SW02M AUTO ADDRESS

• The address of Indoor Units would be set by Automatic addressing

1) Wait for a minute after applying power supply (Main and Sub Outdoor Unit, Indoor Unit).

2) Press the switch of the Outdoor Unit (SW02M) for 5 seconds.

3) A "88" is indicated on 7-segment LED of the Outdoor Unit control board.

4) For completing addressing, 2~7 minutes are required depending on numbers of Indoor Unit connection set.

5) Numbers of Indoor Unit connection set whose addressing is completed are indicated for 30seconds on 7-segment LED of the Outdoor Unit control board.

6) After completing addressing, address of each Indoor Unit is indicated on the wired remote control display

window. (CH01, CH02, CH03, ............. CH06: Indicated as numbers of Indoor Unit connection set.)

Automatic Addressing

CAUTION

- In replacement of the Indoor Unit PCB, always perform Automatic Address Setting again. If power supply is not applied to the Indoor Unit, operation error occurs.

- Automatic addressing is only possible on the main PCB

Page 76

76 Outdoor Unit

Electrical Wiring

◆ The Procedure of Automatic Addressing

Indoor address number is displayed on wired remote control or Indoor Unit display window. It is not an error message, will be disappeared when on/off button is pressed on remote control ex) Display of 01, 02, ..., 15 means connection of 15 Indoor Units and auto addressing is completed normally.

• Auto addressing Setting End Numbers of Indoor Unit connection set whose addressing is completed are indicated for 30seconds on 7-segment LED after completing setting

Page 77

Installation Manual 77

Electrical Wiring

Group Number Setting for Indoor Units

Confirm the power of whole system(Indoor Unit, Outdoor Unit) is OFF, otherwise turn off. The transmission lines connected to C, D of simple central controller should be connected to C,D terminal

port for central control of Outdoor Unit with care for their polarity (C ➔ C, D ➔ D) Both the DC power (Vcc) and the GND connect the simple central controller according to the polarity of Vcc

terminal and GND. Turn the whole system on. Set the group and Indoor Unit number with a wired remote control. To control several sets of Indoor Units into a group, set the group ID from 0 to F for this purpose.

ABGND

Vcc

GND

Indoor unitCentral controller

Simple central Control

Terminal block of outdoor unit

1 (Half size), 1 Outdoor Unit

B E F C D Vcc GNDA

Vcc

GND

Indoor unit

Outdoor unit

Central controller

Simple central Control

Terminal block of outdoor unit

2, 3 Outdoor Units

Group recognizing the simple central controller

No. 0 group (00~0F) No. 1 group (10~1F) No. 2 group (20~2F) No. 3 group (30~3F) No. 4 group (40~4F) No. 5 group (50~5F) No. 6 group (60~6F) No. 7 group (70~7F) No. 8 group (80~8F) No. 9 group (90~9F) No. A group (A0~AF) No. B group (B0~BF) No. C group (C0~CF) No. D group (D0~DF) No. E group (E0~EF) No. F group (F0~FF)

Page 78

78 Outdoor Unit

Group Setting and Check Method

Electrical Wiring

Plasma

Timer Cancel

Program Week

Hour Min

Holiday

Set/Clr

RESET

ZONE

1234

Operation unit

Humidify

JET

AUTO

AUTO SWING OPERATION

FAN SPEED

Program set

SUB FUNCTION

SET TEMP

Room Temp

HI MED LO

Heater Defrost Filter

Preheat Out door

Time

Timer

On Set no. Time

Off

01 03 05 07 09 11 13 15 17 19 21 23

• Using the wired remote controller

1. Press Program button and Set/Clr button at the same time for 3 seconds.

2. The current group and the indoor unit numbers are indicated on the "88" of the wired remote control.

3. Set numbers by using the temperature adjust key.

4. Press Program button and Set/Clr button at the same time for 3 seconds.

5. If transmit recognition data are received from the indoor unit, it returns to the general operation mode.

Group

No.

Room(Indoor Unit) No.

EX)

• Using the wireless remote controller

ON OFF

SET

CANCEL

PLASMA

Address setting

Address check

1. Address setting mode

1) Press RESET button with the upper left-side key pressed. (The left key should be pressed over 3 seconds)

2) Set the indoor unit address using the temperature controller. Allowed range : 00-FF

ex)

3 A

3) After setting address, press ON/OFF key once, toward indoor unit.

4) The indoor unit shows the set address and it means completion of address setting process. (The address displaying time and its way is different depending upon the type of indoor unit )

2. Address check mode

1) Press RESET button with the upper right-side key pressed. (The right key should be pressed over 3 seconds)

2) Press ON/OFF key once toward the indoor unit to be checked, and it displays its address.(The address displaying time and its way is different depending upon the type of indoor unit )

3) Reset the remote controller to use it in the normal operation

❈ Some remote controllers may not be support by above functions, according to the production date of

wired/wireless remote controllers. As it has no concern with customers’ use, use the remote controller available for the address setting during installation.

Page 79

Installation Manual 79

Test Run

Check to see whether there is any refrigerant leakage, and slack of power or transmission cable.

Confirm that 500 V megger shows 2.0 MΩ or more between power supply terminal block and ground. Do not operate in the case of 2.0 MΩ or less.

NOTE: Never carry out megaohm check over terminal control board. Otherwise the control board

would be broken. Immediately after mounting the unit or after leaving it turned off for an extended length of time, the resistance of the insulation between the power supply terminal board and the ground may decrease to approx. 2 MΩ as a result of refrigerant accumulating in the internal compressor. If the insulation resistance is less than 2 MΩ, turning on the main power supply and energizing the crankcase heater for more than 6 hours will cause the refrigerant to evaporate, increasing the insulation resistance.

Check if High/Low Pressure Common pipe, Liquid pipe and Gas pipe valves are fully opened. NOTE: Be sure to tighten caps.

Check if there are any problems in automatic addressing or not: Check and confirm that there are no error messages in the display of Indoor Units or remote controls and LED in Outdoor Units.

Checks Before Test Run

CAUTION

when cutting main power of the Multi V

• Always apply main power of the outdoor unit during use of product (cooling season/heating season).

• Always apply power before 6 hours to heat the crank case heater where performing test run after installation of product. It may result in burning out of the compressor if not preheating the crank case with the electrical heater for more than 6 hours.

(In case of the outdoor temperature below 10°C)

• When operating the unit after powering off, automatically run into in the preheat mode for 3 hours and "PH" is indicated on the outdoor unit 7-Segment.

CAUTION

Preheat of compressor

• Start preheat operation for 3 hours after supplying main power.

• 'PH' is indicated on the PCB LED during preheat of the compressor.

• Operation of the product during preheat operation is not possible, and operation is possible if 'PH'

indication is disappeared after the compressor is fully preheated for 3 hours (preheat operation is performed for the outdoor temperature below 10°C).

• Preheat is only performed once after supplying power.

• Be sure to supply power 6 hours before operation so that the heater is heated

(Insufficient heating may cause damage of the compressor.)

Page 80

80 Outdoor Unit

Test Run

How to Cope with Test Run Abnormality

The phenomena from main component failure

Compressor

Outdoor

fan

Outdoor

LEV

Not operating

Stop during running

Loud noise during running

High pressure error at cooling

Heating failure, frequent defrosting

No operating sound at applying power

Heating failure, Frozen outdoor heat exchanger part

Low pressure error or discharge temperature error

Motor insulation broken

Motor insulation failure

Phase sequence fault

Motor failure, Bad ventilation around outdoor heat exchanger

Bad connector contact

Coil failure

LEV clogged

Check resistance between terminals and chassis

Check wiring(R, S, T) sequence, or lnter change last two phase connection.

Check the outdoor fan operation after being turned the Outdoor Unit off for some time. Remove obstacles around the Outdoor Unit

Check connector

Check resistance between terminals

Service necessary

Component Phenomenon Cause Check method and Trouble shooting

When system fault occurs, the error code is displayed at Indoor Unit display or remote control display, the trouble shooting guide is in the service manual

Page 81

Installation Manual 81

Test Run

Self-Diagnosis Function

Error Indicator

• This function indicates types of failure in self-diagnosis and occurrence of failure for air condition.

• Error mark is displayed on display window of Indoor Units and wired remote controller, and 7-segment LED of

Outdoor Unit control board as shown in the table.

• If more than two troubles occur simultaneously, lower number of error code is first displayed.

• After error occurrence, if error is released, error LED is also released simultaneously.

Display Title Cause of Error

0 0

1 2

3 4

5 6

7 8

2 2

1 2

4 5

3 3

1 2

Indoor Unit air sensor Indoor Unit sensor(inlet pipe) Wired remote control ↔ Indoor

Unit transmission Drain pump Outdoor unit ↔ Indoor Unit trans-

mission Indoor Unit outlet pipe sensor The other operation mode

Not in use Serial No. Error

DC peak Excess of limited current of Main

Outdoor Unit INV compressor Poor voltage charge for driving

INV compressor High Pressure Switch of Main

Outdoor Unit Low/Over voltage Not in use Discharge temperature of Main

Outdoor Unit (INV compressor) Discharge temperature of Main

Outdoor Unit (constant speed compressor)

High pressure of Main Outdoor Unit

Low pressure of Main Outdoor Unit

Indoor Unit air sensor open or short Indoor Unit inlet pipe sensor open or short In the case that Indoor Unit can not receive any signal

from wired remote control successively for 3 minutes Malfunction of drain pump In the case that Indoor Unit can not receive any signal

from Outdoor Unit successively for 3 minutes Indoor Unit outlet pipe sensor open or short In the case that an Indoor Unit is operated the other

operation mode different from the operated Indoor Unit Not in use In the case that the serial number marked on

EEPROM of Indoor Unit is 0 or FFFFFF IPM over temperature or compressor malfunction

When current detection is over the maximum current limit

DC charging is not performed after starting relay turn on

Suspension of compressor by the Main Outdoor Unit High Pressure switch

Input voltage is out of tolerance of rating voltage Not in use Due to over rising of INV compressor discharge tempera-

ture, Compressor off is occurred 3 times in 1

hour

Due to over rising of constant speed compressor discharge temperature, Compressor off is occurred 3times in an hour

Compressor Off by excessive increase of Main Outdoor Unit High Pressure

Compressor Off by excessive reduction of Main Outdoor Unit Low Pressure

Indoor Unit related error

Power related error

Compressor related error

Page 82

82 Outdoor Unit

Test Run

Connection of excessive capacity (excessive Indoor Unit capacity)

IMV control part ➡ Main Outdoor Unit control part

Indoor Unit ➡ Main Outdoor Unit control part

Reverse connection of the R,S,T power line of Main Outdoor Unit

Transmission related error (Main control part ➡ INV control part)

Excessive temperature of INV control part radiation panel

Fan temperature sensor

Current detect (CT) sensor of Main Outdoor Unit Inverter compressor open or short

Open or short of discharge temperature sensor of Main Outdoor Unit Inverter compressor

Open or short of Outdoor Low Pressure sensor of Main Outdoor Unit

Open or short of Outdoor High Pressure sensor of Main Outdoor Unit

Open or short of Outdoor air sensor of Main Outdoor Unit

Open or short of heat exchanger sensor of Main Outdoor Unit (front side)

Open or short of Suction temperature sensor of Main Outdoor Unit

Open or short of discharge temperature sensor of the constant speed compressor of Main Outdoor Unit

Open or short Heat exchanger sensor of Main Outdoor Unit (rear side)

Current detect a(CT) sensor of Main Outdoor Unit Inverter compressor

Discharge temperature sensor of Main Outdoor Unit Inverter compressor

Outdoor Low Pressure sensor of Main Outdoor Unit

Outdoor High Pressure sensor of Main Outdoor Unit

Outdoor air sensor of Main Outdoor Unit

Heat exchanger sensor of Main Outdoor Unit (front side)

Suction temperature sensor of Main Outdoor Unit

Discharge temperature sensor of the constant speed compressor of Main Outdoor Unit

Heat exchanger sensor of Main Outdoor Unit (rear side)

Display Title Cause of Error

The displayed number of Indoor Units being connected is over rated capacity of Outdoor Unit

Failing to receive signal of the Main Outdoor Unit control part from the INV control part

Failing to receive signal of the Main Outdoor Unit control part from the Indoor Unit control part

Misconnection or disconnection of R,S,T power line of Main Outdoor Unit

Failing to receive signal of the INV control part from the Main control part

Excessive temperature of INV control part radiation panel

Open or short of fan temperature sensor

Outdoor unit related errorTransmission related error

Outdoor Unit

related error

Page 83

Installation Manual 83

Test Run

Compressor Off by excessive increase of discharge temperature of constant speed compressor1 of the Sub1 Outdoor Unit

Compressor Off by excessive increase of discharge temperature of constant speed compressor1 of the Sub2 Outdoor Unit

Compressor Off by excessive increase of discharge temperature of constant speed compressor1 of the Sub2 Outdoor Unit (3 units)

Compressor Off by excessive increase of discharge temperature of constant speed compressor2 of the Sub2 Outdoor Unit (3 units)

If failing to receive signal of the Sub1 Outdoor Unit from the Main Outdoor Unit control part

If failing to receive signal of the fan driving control part from the Main Outdoor Unit control part

Occurrence of over-current at Main Outdoor Unit fan motor (IPM Fault)

Occurrence of Low Voltage of Main Outdoor Unit fan motor

If failing to receive signal of the Main Outdoor Unit control part from the fan driving control part

Operation of High Pressure switch due to increase of Sub1 Outdoor Unit High Pressure increase

Misconnection or disconnection of R, S, T Power line of Sub1 Outdoor Unit

If failing to receive signal of the Main Outdoor Unit control part from the Sub1 Outdoor Unit control part

Open or short of Main Outdoor Unit liquid pipe temperature sensor

Open or short of Main Outdoor Unit excessive cooling inlet temperature sensor

Open or short of Main Outdoor Unit excessive cooling outlet temperature sensor

Open or short of Sub1 Outdoor Unit High Pressure sensor

Open or short of Sub1 Outdoor Unit Low Pressure sensor

Open or short of Sub1 Outdoor Unit air temperature sensor

Open or short of Sub1 Outdoor Unit suction temperature sensor

Open or short of Sub1 Outdoor Unit constant speed compressor1 discharge temperature sensor

Discharge temperature of Main Outdoor constant speed compressor 1 of Sub1 Outdoor Unit

Discharge temperature of Main Outdoor constant speed compressor 2 of Sub1 Outdoor Unit

Discharge temperature of Main Outdoor constant speed compressor 1 of Sub2 Outdoor Unit (3 units)

Discharge temperature of Main Outdoor constant speed compressor 2 of Sub2 Outdoor Unit (3 units)

Transmission related error between Outdoor Units (Sub1 Outdoor Unit ➡ Main Outdoor Unit)

Transmission related error Main Outdoor Unit fan driving (fan ➡ Outdoor Unit)

Occurrence of over-current at Main Outdoor Unit fan motor (IPM Fault)

Low Voltage of Main Outdoor Unit fan motor

Transmission related error of Main Outdoor Unit fan motor (Outdoor Unit ➡ fan)

High Pressure switch of Sub1 Outdoor Unit

Reverse connection of the R, S, T Power line of Sub1 Outdoor Unit

Transmission related error between Outdoor Units (Main Outdoor Unit ➡ Sub1 Outdoor Unit)

Main Outdoor Unit liquid pipe temperature sensor

Main Outdoor Unit excessive cooling inlet temperature sensor

Main Outdoor Unit excessive cooling outlet temperature sensor

Sub1 Outdoor Unit High Pressure sensor

Sub1 Outdoor Unit Low Pressure sensor

Sub1 Outdoor Unit air temperature sensor

Sub1 Outdoor Unit suction temperature sensor

Sub1 Outdoor Unit constant speed compressor1 discharge temperature sensor

Display Title Cause of Error

100

101

102

103

104

105

106

107

108

109

110

111

113

114

115

116

117

118

120

121

Compressor related errorCompressor related errorTransmission related error

Outdoor Unit related error

Page 84

84 Outdoor Unit

Test Run

Open or short of Sub1 Outdoor Unit constant speed compressor2 discharge temperature sensor

Open or short of heat exchanger sensor of Sub1 Outdoor Unit (front side)

Open or short of heat exchanger sensor of Sub1 Outdoor Unit (rear side)

Open or short of Sub1 Outdoor Unit liquid pipe temperature sensor

Open or short of Sub1 Outdoor Unit excessive cooling inlet temperature sensor

Open or short of Sub1 Outdoor Unit excessive cooling outlet temperature sensor

Open or short of Sub2 Outdoor Unit High Pressure sensor (3Units)

Open or short of Sub2 Outdoor Unit Low Pressure sensor (3Units)

Open or short of Sub2 Outdoor Unit air temperature sensor (3Units)

Open or short of Sub2 Outdoor Unit suction temperature sensor (3Units)

Open or short of Sub2 Outdoor Unit constant speed compressor1 discharge temperature sensor (3Units)

Open or short of Sub2 Outdoor Unit constant speed compressor2 discharge temperature sensor (3Units)

Open or short of Sub2 Outdoor Unit heat exchanger temperature sensor(front side) (3Units)

Open or short of Sub2 Outdoor Unit heat exchanger temperature sensor(rear side) (3Units)

Open or short of Sub2 Outdoor Unit liquid pipe temperature sensor (3units)

Open or short of Sub2 Outdoor Unit excessive cooling inlet temperature sensor (3units)

Open or short of Sub2 Outdoor Unit excessive cooling outlet temperature sensor (3units)

Open or short of Sub2 Outdoor Unit High Pressure sensor (3units)

Misconnection or disconnection of R, S, T Power line of Sub2 Outdoor Unit

If failing to receive signal of the central control part from the main control part

Compressor Off by excessive increase of Sub1 Outdoor Unit High Pressure

Sub1 Outdoor Unit constant speed compressor2 discharge temperature sensor

Sub1 Outdoor Unit heat exchanger sensor (front side)

Sub1 Outdoor Unit heat exchanger sensor (rear side)

Sub1 Outdoor Unit liquid pipe temperature sensor

Sub1 Outdoor Unit excessive cooling inlet temperature sensor

Sub1 Outdoor Unit excessive cooling outlet temperature sensor

Sub2 Outdoor Unit High Pressure sensor (3Units)

Sub2 Outdoor Unit Low Pressure sensor (3Units)

Sub2 Outdoor Unit air temperature sensor (3Units)

Sub2 Outdoor Unit suction temperature sensor (3Units)

Sub2 Outdoor Unit constant speed compressor1 discharge temperature sensor (3Units)

Sub2 Outdoor Unit constant speed compressor2 discharge temperature sensor (3Units)

Sub2 Outdoor Unit heat exchanger temperature sensor (front side) (3Units)

Sub2 Outdoor Unit heat exchanger temperature sensor (rear side) (3Units)

Sub2 Outdoor Unit liquid pipe temperature sensor (3Units)

Sub2 Outdoor Unit excessive cooling inlet temperature sensor (3Units)

Sub2 Outdoor Unit excessive cooling outlet temperature sensor (3Units)

Sub2 Outdoor Unit High Pressure sensor (3Units)

Reverse connection of the R, S, T Power line of Sub2 Outdoor Unit

Transmission related error between Outdoor Units (Main Outdoor Unit ➡ Sub2 Outdoor Unit) (3Units)

High Pressure of Sub1 Outdoor Unit

Display Title Cause of Error

122

123

124

125

126

127

128

129

130

132

133

134

135

136

137

138

139

140

141

142

143

Outdoor Unit related error

Page 85

Installation Manual 85

Test Run

■ Please refer to trouble shooting guide in service manual for each error title

CAUTION

In case that the control box is opened and before checking electrical parts, it should be checked that the LED 01Y (Refer to next page) turned off (wait 3 minutes after main power OFF), otherwise, it may cause electrical shock.

Compressor Off by excessive reduction of Sub2 Outdoor Unit Low Pressure

Compressor Off by excessive increase of Sub2 Outdoor Unit High Pressure

Compressor Off by excessive reduction of Sub2 Outdoor Unit Low Pressure

Input voltage of Sub1 Outdoor Unit is more than 487V or less than 270V

Open or short of outdoor voltage sensor of Sub1 Outdoor Unit

Input voltage of Sub2 Outdoor Unit is more than 487V or less than 270V

Open or short of outdoor voltage sensor of Sub2 Outdoor Unit

Pressure unbalance between Outdoor Units

Low Pressure of Sub1 Outdoor Unit

High Pressure of Sub2 Outdoor Unit (3Units)

Low Pressure of Sub2 Outdoor Unit (3Units)

Short voltage/excess voltage of Sub1 Outdoor Unit

Voltage sensor of Sub1 Outdoor Unit

Short voltage/excess voltage of Sub2 Outdoor Unit (3Units)

Voltage sensor of Sub2 Outdoor Unit (3Units)

Failure of operation mode conversion

Display Title Cause of Error

144

145

146

147

148

149

150 151

Outdoor Unit related error

Page 86

86 Outdoor Unit

Test Run

Position of the LED01Y in inverter board

Page 87

Installation Manual 87

Caution For Refrigerant Leak

The installer and system specialist shall secure safety against leakage according to local regulations or standards. The following standards may be applicable if local regulations are not available.

Though the R410A refrigerant is harmless and incombustible itself , the room to equip the air conditioner should be large to such an extent that the refrigerant gas will not exceed the limiting concentration even if the refrigerant gas leaks in the room.

■ Limiting concentration

Check limiting concentration along following steps and take appropriate measure depending on the situation.

■ Calculate amount of all the replenished refrigerant (kg) per each refrigerant

system.

■ Calculate minimum room capacity

Calculate room capacity by regarding a portion as one room or the smaller room. (1) Without partition

(2) With partition and with opening which serve as

passage of air to adjoining room

Caution For Refrigerant Leak

Introduction

Checking procedure of limiting concentration

Limiting concentration is the limit of Freon gas concentration where immediate measures can be taken without hurting human body when refrigerant leaks in the air. The limiting concentration shall be described in the unit of kg/m3(Freon gas weight per unit air volume) for facilitating calculation.

Limiting concentration: 0.30kg/m

(R22) (ISO5149, EN378-1)

Outdoor unit

(No.1 system)

Indoor unit

Flow of refrigerant

Room where refrigerant leaks (Refrigerant of the whole No.1 system flows out.)

Amount of replenished refrigerant per one outdoor unit system

Amount of replenished refrigerant at factory shipment

Amount of additional

replenished refrigerant

Amount of additionally replenished refrigerant depending on piping length or piping diameter at customer

Total amount of replenished

refrigerant in refrigerant facility (kg)

Note : In case one refrigerant facility is

divided into 2 or more refrigerant systems and each system is independent, amount of replenished refrigerant of each system shall be adopted.

Indoor unit

Outdoor unit

Indoor unit

Opening

Partition

In the case of opening without door , or 0.15 % or more openings (to floor space) both above and below door)

Page 88

88 Outdoor Unit

Caution For Refrigerant Leak

(3) With partition and without opening which serve as passage of air to adjoining room

■ Calculate refrigerant concentration

■ In case the concentration exceeds the limit

When the concentration exceeds the limit, change original plan or take one of the countermeasures shown below:

• Countermeasure 1

Provide opening for ventilation. Provide 0.15% or more opening to floor space both above and below door, or provide opening without door.

• Countermeasure 2

Provide gas leak alarm linked with mechanical ventilator.

Pay a special attention to the place, such as a basement, etc. where refrigerant can stay, since refrigerant is heavier than air.

Outdoor unit

Indoor unit

Smallest room

Total amount of replenished refrigerant in refrigerant facility (kg)

Capacity of smallest room where indoor unit is installed (m

)

Refrigerant concentration

(R22)

(kg/m

)

In case the result of calculation exceeds the limiting concentration, perform the same calculations by shifting to the second smallest, and the third smallest rooms until at last the result is below the limiting concentration.

Countermeasure 2

Gas leak alarm

Mechanical ventilator

Indoor unit

Countermeasure 1

Opening effective to ventilation

Page 89

P/No.: 3828A24002A

Printed in Korea

After reading this manual, keep it in a place easily accessible to the user for future reference.