LG PRCKA1 Manuel utilisateur

P/NO : MFL50024830

INSTALLATION MANUAL

PRCKA1

AHU

COMMUNICATION KIT

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.

ENGLISH ESPAÑOL

• Do not cool excessively indoors. This may be harmful for your health and may consume more

electricity.

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

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

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

• Speed up the fan to cool or warm indoor air quickly, in a short period of time.

• Open windows regularly for ventilation as the indoor air quality may deteriorate if the air conditioner

is used for many hours.

• Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block the

air flow or weaken the cooling / dehumidifying functions.

For your records

Staple your receipt to this page in case you need it to prove the date of purchase or for warranty

purposes. Write the model number and the serial number here:

Model number :

Serial number :

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

Dealer’s name :

Date of purchase :

Here are some tips that will help you minimize the power consumption when you use the air

conditioner. You can use your equipment more efficiently by referring to the instructions

below:

TIPS FOR SAVING ENERGY

ENGLISH

IMPORTANT SAFETY INSTRUCTIONS

READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.

Always comply with the following precautions to avoid dangerous situations and ensure peak

performance of your product.

WARNING

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

CAUTION

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

WARNING

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

• Installation must conform with local building codes or, in the absence of local codes, with the

Nation Electrical Code NFPA 70/ANSI C1-1003 or current edition and Canadian Electrical Code

Part1 CSA C.22.1.

• The information contained in the manual is intended for use by a qualified service technician

familiar with safety procedures and equipped with the proper tools and test instruments.

• Failure to carefully read and follow all instructions in this manual can result in equipment mal-

function, property damage, personal injury and/or death.

Installation

• Always perform grounding.

- Otherwise, it may cause electrical shock.

• Don’t use a power cord, a plug or a loose socket that is damaged.

- Otherwise, it may cause fire or electrical shock.

• For installation of the product, always contact the service center or a professional installation

agency.

- Otherwise, it may cause fire, electrical shock, explosion or injury.

• Securely attach the electrical part cover to AHU Comm. Kit.

- If the electric part cover of AHU Comm. Kit is not attached securely, it could result in a fire or

electric shock due to dust, water, etc.

• Always install an air leakage breaker and a dedicated switching board.

- No installation may cause a fire and electrical shock.

• Do not keep or use flammable gases or combustibles near the air conditioner.

- Otherwise, it may cause a fire or the failure of product.

• Do not install, remove or reinstall the unit by yourself.

- Otherwise, it may cause a fire, electrical shock, explosion or injury.

• Do not disassemble or repair the product randomly.

- It will cause a fire or electrical shock.

• Do not install the product in a place where there is the concern of falling down.

- Otherwise, it may result in personal injury.

• Use caution when unpacking and installing.

- Sharp edges may cause injury.

IMPORTANT SAFETY INSTRUCTIONS

ENGLISH

Operation

• Do not share the outlet with other appliances.

- It will cause an electric shock or a fire due to heat generation.

• Do not use the damaged power cord.

- Otherwise, it may cause a fire or electrical shock.

• Do not modify or extend the power cord randomly.

- Otherwise, it may cause a fire or electrical shock.

• Take care so that the power cord may not be pulled during operation.

- Otherwise, it may cause a fire or electrical shock.

• Unplug the unit if strange sounds, smell, or smoke comes from it.

- Otherwise, it may cause electrical shock or a fire.

• Keep flames away.

- Otherwise, may occur a fire.

• Take the power plug out if necessary, holding the head of the plug and do not touch it with

wet hands.

- Otherwise, it may cause a fire or electrical shock.

• Do not use the power cord near the heating tools.

- Otherwise, it may cause a fire and electrical shock.

• Do not allow water to run into electrical parts.

- Otherwise, it may cause the failure of machine or electrical shock.

• Hold the plug by the head when taking it out.

- It may cause electric shock and damage.

• Be cautious that water could not enter the product.

- Otherwise, it may cause a fire electrical shock or product damage.

• Do not step on the indoor/outdoor unit and do not put anything on it.

- It may cause an injury through dropping of the unit or falling down.

• Do not place a heavy object on the power cord.

- Otherwise, it may cause a fire or electrical shock.

• When the product is submerged into water, always contact the service center.

- Otherwise, it may cause a fire or electrical shock.

IMPORTANT SAFETY INSTRUCTIONS

ENGLISH

2TIPS FOR SAVING

ENERGY

3IMPORTANT SAFETY

INSTRUCTIONS

6INSTALLATION SCENE

7SUPPLIES

8OPTIONAL ACCES-

SORIES

9PART DESCRIPTION

9Communication Kit (PRCKA1)

10 BEFORE INSTALLATION

13 COMMUNICATION KIT

INSTALLATION

13 Mechanical installation

14 Electric Wiring Work

15 Electrical Work

16 Electric Wiring Work

17 Dry contact connection_optional

accessory

18 FAN Signal Wiring Concept

19 THERMISTORS INSTAL-

LATION

19 Pipe thermistors Installation

22 TROUBLESHOOTING

TABLE OF CONTENTS

ENGLISH

6INSTALLATION SCENE

ENGLISH

Signal

Pipe

Thermistor

Air ﬂow

Refrigerant ﬂow

(Cooling)

Refrigerant ﬂow

(Heating)

Parts and components

No. Name Remarks

1 Air Handling Unit Field supply

2 Outdoor Unit Multi V

3 AHU Communication Kit(PRCKA1) -

4 AHU EEV Kit(PRLK048A0/PRLK096A0) -

5 Field piping Field supply

Wiring connections

6 Communication Kit Wiring Power supply and communication

between comm. kit and outdoor unit

7Pipe thermistors

(EBG61287703/EBG61287704) Temp. sensing for refrigerant pipe

8 Room thermistor (EBG36949303) Temp. sensing for room temp.

9Remote controller(PQRCVSL0

/ PQRCVSL0QW) Optional accessory

10 Dry contact(PQDSBNGCM1) Optional accessory

CAUTION

For Installation of Room thermistor (No. 8), always install that to the inlet of Heat Exchanger.

Otherwise, it may cause to be not operating properly.

INSTALLATION SCENE

SUPPLIES 7

ENGLISH

PRCKA1

Compo-

nents

AHU Comm.

Kit

Room

thermistor

Pipe

thermistors

Installation

Manual Bracket Option PCB

P/NO

AJT57850914 EBG61106821

EBG61287703(In)

EBG61287704(Out)

MFL50024830 MAZ49398901 EBR52358907

~17

Shape

P/NO: MFL50024808

www.lg.com

INSTALLATION MANUAL

AHU COMMUNICATION KIT

• 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.

MODEL : PRCKA1

ENGLISH

Quanti-

ty(EA) 1 1 2(Each 1) 1 4 11(Each 1)

Model

Name

Weight (kg) Dimension (mm)

POWER

NET Gross

W H D W H D

PRCKA1 2.7 4.0 280 135 280 420 179 394 220-240 V~ 50 Hz

220 V~ 60 Hz

SUPPLIES

8OPTIONAL ACCESSORIES

ENGLISH

* For further details of the accessories, refer to the manual provided at the time of purchasing

the accessories.

Accessories

Components Remote controller Dry contact

Model name PQRCVSL0

PQRCVSL0QW PQDSBNGCM1

Shape

OPTIONAL ACCESSORIES

PART DESCRIPTION 9

ENGLISH

Communication Kit (PRCKA1)

PART DESCRIPTION

No. Part Name Quantity(EA)

1 Plastic bolt 4

2 Control box cover 1

3 Main PCB 1

4 Option PCB(36k) 1

5 Main PCB case 1

6 Terminal block (communication) 1

7 Terminal block (POWER Supply) 1

8 Panel 1

9 Support Tie wrap 8

10 Control box case 1

11 Cable gland(2type) 8

12 Bracket 4

10 BEFORE INSTALLATION

ENGLISH

CAUTION

• Don't install or operate the unit in rooms mentioned below.

①Where mineral oil, like cutting oil is present.

②Where the air contains high levels of salt such as air near the ocean.

③Where sulphurous gas is present such as that in areas of hot spring.

④In vehicles or vessels.

⑤Where voltage fluctuates a lot such as that in factories.

⑥Where high concentration of vapor spray are present.

⑦Where machines generating electromagnetic waves are present.

⑧Where acidic or alkaline vapor is present.

⑨The option boxes must be installed with entrances downward.

• Check the mentioned below, when you apply the AHU (Field supply).

①If the AHU (Field supply) provided in the field is exclusively for heating, you must not

change the operating mode to cooling on the remote controller. If not, it can cause

electric shock, injury or death. If you want to operate in cooling mode, AHU (Field sup-

ply) must comply with the following details.

(Following)

- The insulation level of AHU (Field supply) motor must be ‘F’ or above, and the protec-

tion level must satisfy ‘IP 54’.

- AHU (Field supply) must have the drain pan installed.

②Fan speed button on the wired remote controller (PQRCVSL0 /PQRCVSL0QW) is not

operated.

③For refrigerant piping of outdoor unit, refer to the installation manual supplied with the

outdoor unit.

④For installation of the wired remote controller (PQRCVSL0 /PQRCVSL0QW), refer to

the manual supplied with the wired remote controller.

⑤For protecting the refrigerant cycle in heating, the inlet Air temperature to the Heat

Exchanger has to be over 5 °C.

⑥For connection of the Dry contact PCB(PQDSBNGCM1), refer to the manual supplied

with the Dry contact PCB.

• AHU Communication Kit

①Thermistor cable and remote controller wire should be located at least 50mm away

from power supply wires and from wires to the controller. Not following this guideline

may result in malfunction due to electrical noise.

②Use only specified wires, and tightly connect wires to the terminals. Keep wiring in

neat order so that it does not obstruct other equipment. Incomplete connections could

result in overheating, and in worse case electric shock or fire.

BEFORE INSTALLATION

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