LG PRHR063A INSTALLATION MANUAL

MFL32987321

Rev.00_052418

INSTALLATION MANUAL

AIR CONDITIONER

http://www.lghvac.com

www.lg.com

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.

PRHR083A/PRHR063A/PRHR043A/PRHR033A/PRHR023A (Heat Recovery Unit) Original instruction

ENGLISH FRANÇAIS ESPAÑOL

TIPS FOR SAVING ENERGY

ENGLISH

TIPS FOR SAVING ENERGY

Here are some tips that will help you minimize power consumption when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions below:

• Do not cool excessively indoors. This may consume more electricity.

• Block sunlight with blinds or curtains while you are operating the air conditioner.

• Keep doors or windows closed tightly while you are operating the air conditioner.

• Adjust the direction of the air flow vertically or horizontally to circulate indoor air.

• Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block the air flow or weaken the cooling / dehumidifying functions.

For your records

Staple your receipt to this page in case you need it to prove the date of purchase or for warranty purposes. Write the model number and the serial number here:

Model number :

Serial number :

You can find them on a label on the side of each unit.

Dealer’s name :

Date of purchase :

IMPORTANT SAFETY INSTRUCTIONS

READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.

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

WARNING

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

CAUTION

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

WARNING

• Installation or repairs made by unqualified persons can result in hazards to you and others.

• The information contained in the manual is intended for use by a qualified service contractor familiar with safety procedures and equipped with the proper tools and test instruments.

• Failure to carefully read and follow all instructions in this manual can result in equipment malfunction, property damage, personal injury and/or death.

ENGLISH

WARNING

• 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 contractor to install the HR unit.

- Improper installation by the user may result in water

leakage, electric shock, or fire.

ENGLISH

IMPORTANT SAFETY INSTRUCTIONS

• Always ground the product.

- There is risk of fire or electric shock.

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

- Inadequate connection and fastening may generate heat and

cause a fire.

• 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.

- All work should be performed by a qualified, licensed

contractor.

• Do not store or use flammable gas or combustibles near the HR Unit.

- There is risk of fire or failure of product.

• Use a properly rated breaker or fuse.

- There is risk of fire or electric shock.

• Do not damage or use an unspecified power cord.

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

• Do not touch the power switch with wet hands.

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

• 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 HR unit and fire or electric shock may result.

• Be cautious when unpacking and installing the product.

- Sharp edges could cause injury. Be especially careful of the

case edges.

• Safely dispose of the packing materials.

- Packing materials, such as nails and other metal or wooden

parts, may cause puncture wounds or other injuries.

- Tear apart and throw away plastic packaging bags so that

children may not play with them and risk suffocation and death.

IMPORTANT SAFETY INSTRUCTIONS

CAUTION

• Avoid a place where rain may enter since the HR unit is for indoor installations only.

- There is risk of property damage, failure of product, or

electric shock.

• Do not install a HR unit in a space where persons exists such as living room, office or meeting room with not only low but also open ceiling.

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

- Low refrigerant levels may cause failure of product.

• Keep level even when installing the product.

- To avoid vibration or water leakage.

• This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.

- Children should be supervised to ensure that they do not

play with the appliance.

ENGLISH

TABLE OF CONTENTS

ENGLISH

TABLE OF CONTENTS

2 TIPS FOR SAVING ENERGY

3 IMPORTANT SAFETY INSTRUCTIONS

7 FEATURES

9 INSTALLATION PART

10 INSTALLATION

10 Selection of the best location

10 Dimensional drawings

13 HR Unit Installation

16 Insulation

17 Wiring Connection

18 HR Unit PCB

19 Setting the HR Unit switches

26 COIL EXCHANGING METHOD

27 JOINT METHOD OF HR UNIT

FEATURES

Control Box

Connection Pipe (to outdoor unit)

Connection Pipe (to indoor unit)

FEATURES

Model PRHR023A PRHR033A PRHR043A

Max. Connectable No. of Indoor Units 16 24 32

Max. Connectable No. of Indoor Units of a branch 8 8 8

Power Input

Net. Weight

Shipping Weight

Dimensions (WxHxD)

Casing Galvanized steel plate

Connecting Pipes

Sound Absorbing Insulation Material Polyethylene Foam

Cooling [W] 39.8

Heating [W] 37.2

lbs

mm 786 X 218 X 657

Inch 30.9 X 8.6 X 25.9

Liquid Pipe

Indoor side

Outdoor side

[mm/inch]

Gas Pipe

[mm/inch]

Liquid

[mm/inch]

Low Pressure

[mm/inch]

High Pressure

[mm/inch]

14.9 16.7 18.2

32.8 36.8 40.1

20.7 22.5 24.0

45.6 49.6 52.9

Ø9.52[3/8] – Ø6.35[1/4]

Ø15.88[5/8] – Ø12.7[1/2]

Ø9.52[3/8] Ø12.7[1/2] Ø15.88[5/8]

Ø22.2[7/8] Ø28.58[1-1/8] Ø28.58[1-1/8]

Ø19.05[3/4] Ø22.2[7/8] Ø22.2[7/8]

ENGLISH

Current

Power Supply 1Ø, 208/230 V, 60 Hz

Minimum circuit Amps(MCA) 0.17

Maximum fuse Amps(MFA) 15

Control Box

Connection Pipe (to outdoor unit)

Connection Pipe (to indoor unit)

ENGLISH

FEATURES

Model

Max. Connectable No. of Indoor Units

Max. Connectable No. of Indoor Units of a branch

Power Input

Net. Weight

Shipping Weight

Dimensions (WxHxD)

Casing

Connecting Pipes

Sound Absorbing Insulation Material

Current

Power Supply

Cooling [W]

Heating [W]

lbs

Inch

Indoor side

Outdoor side

Minimum circuit Amps(MCA)

Maximum fuse Amps(MFA)

Liquid Pipe [mm/inch]

Gas Pipe [mm/inch]

Liquid [mm/inch]

Low Pressure [mm/inch]

High Pressure [mm/inch]

PRHR063A PRHR083A

48 64

75.9

72.1

27.2 30.7

60.0 67.7

33.8 37.3

74.5 82.2

1 113 X 218 X 657

43.8 X 8.6 X 25.9

Galvanized steel plate

Ø9.52[3/8] – Ø6.35[1/4]

Ø15.88[5/8] – Ø12.7[1/2]

Ø15.88[5/8]

Ø28.58[1-1/8]

Ø22.2[7/8]

Polyethylene Foam

0.27

1Ø, 208/230 V, 60 Hz

INSTALLATION PART

- Installation Manual

- Hanging bolts (4 x M10 or M8), Nut(8 x M10 or M8), Flat washers(8 x M10)

- Reducers

[Unit : mm(inch)]

ENGLISH

Models

HR unit reducer

PRHR023A

PRHR033A PRHR043A PRHR063A PRHR083A

Liquid pipe

OD15.88(5/8)

Ø12.7(1/2)

OD12.7(1/2) Ø9.52(3/8)

Ø6.35(1/4)OD9.52(3/8)

Ø9.52(3/8)

Gas pipe

High pressure

OD19.05(3/4) Ø15.88(5/8)

OD12.7(1/2)

OD22.2(7/8) Ø19.05(3/4) Ø15.88(5/8)

OD15.88(5/8) Ø12.7(1/2)

Ø12.7(1/2)

Ø9.52(3/8)

Low pressure

OD22.2(7/8) Ø19.05(3/4) Ø15.88(5/8)

OD15.88(5/8) Ø12.7(1/2)

OD28.58(1-1/8) Ø22.2(7/8) Ø19.05(3/4)

OD19.05(3/4) Ø15.88(5/8)

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