LG Low Ambient Control Kit Bedienungsanleitung

P/NO : MFL42540228

www.lg.com

INSTALLATION MANUAL

• 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.

❈PRVC2 is available only for the Multi-V IV model

(PRVC2 can not be installed for the previous Multi-V IV model)

MODEL : PRVC2

Low Ambient Control Kit

Low Ambient Control Kit Installation manual

TABLE OF CONTENTS

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

■Accessory Parts ....................................................................................6

■Name of each Part ................................................................................7

■Installation Method................................................................................8

1. IO Module Installation Method..........................................................8

2. Transformer, Terminal Block Installation Method............................10

■Setting and Using Method ..................................................................12

1. Wiring Diagram ..............................................................................12

2. Power Source Input .......................................................................13

3. IO Module - Low Ambient Kit Function...........................................15

4. IO Module – Other Function ...........................................................16

5. Wiring for Damper Actuator............................................................19

6. Setting of Outdoor Unit Dip Switch.................................................22

■Installation Method of Snow Hood and Air Damper ...........................23

1. One Unit with Snow Hood and Air Damper ...................................23

2. Two and Three Units with Snow Hood and Air Damper ................24

3. Unit Placement and Clearances.....................................................25

2Low Ambient Control Kit

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.

WARNING

CAUTION

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage.

Be sure not to do.

Be sure to follow the instruction.

WARNING

Installation manual 3

Safety Precautions

■Installation

Service

Center

Service

Center

Don’t touch with the hands

while the power is on.

• Cause fire, electric shock,

explosion or injury.

Product installation must

be referred to a service

center or installation shop.

• Cause fire, electric shock,

explosion or injury.

Request installation from

installation shop or service

center when reinstalling

the product.

• Cause fire, electric shock,

explosion or injury.

4Low Ambient Control Kit

Safety Precautions

Standardized

product

Do not install the product

in the place where rain can

get to the product.

• Cause product failure

Do not install the unit in

humid locations.

• Cause product failure

Do not put the product

closer to fire.

• Cause fire

Do not install in a place

that cannot withstand the

weight of the product.

• The product may get

damaged or may break.

Do not install the product

to a place that generates

oil, steam, salt, sulfuric

gas, etc.

• Cause the product’s

deformation or failure.

Use standardized Product.

• Cause product failure

Do not change or extend

power lines arbitrarily.

• Cause fire or electric shock.

Do not give a shock to the

product.

• If you give a shock to the

product, it may cause the

product’s failure.

Do not use a heater near

the power line.

• Cause fire or electric shock.

■Operation

Safety Precautions

Installation manual 5

Service

Center

STOP

Do notspill water inside of

the product.

• Cause electric shock or

breakdown.

If the product has been

inundated, you must refer to

a service center or

installation shop.

• It can cause a fire.

Children and elderly use the

product under the

guardian’s supervision.

• Cause accidents and product

failures.

Do not use for special

purpose / place such as

conserving flora and fauna,

precision instruments, art.

• Otherwise, it can cause property

damage.

Remove the power plug

when cleaning.

• Cause fire or electric shock.

Do not place heavy objects

on the power line.

• Cause fire or electric shock.

Do not disassemble, repair,

or modify the product.

• Cause fire or electric shock.

Do not touch with wet

hands.

• Cause fire or electric shock.

Accessory Parts

6Low Ambient Control Kit

Accessory Parts

IO Module

Bracket 1

Terminal Block (2EA)

Bracket 2

Screw (9EA)

Manual

Cable (3EA)

Tie (2EA)

Transformer

Clamp

Name of each Part

Installation manual 7

ڼڽ

Name of each Part

① Main connector : Power input and communication connector with Outdoor unit

② SW104 : Rotary Switch for setting Demand control step

③ Digital Output : Operating & Error status Relay output (250V, 1A)

④ SW102 : Switch for setting internal function

⑤ Digital Input : Dry contact input

⑥ Analog Input : DC0~10V Analog signal input

⑦ Analog Output : DC0~10V Analog signal output

⑧ SW103 : Reset Switch

⑨ SW101 : Dip Switch for setting operating function

Installation Method

8Low Ambient Control Kit

1. IO Module Installation Method

Installation Method

① Separate front panel from outdoor unit.

② Separate front cover of control box.

③ Assemble IO Module and bracket.

④

Connect the connection wires according to the instructions. (Please refer to Setting and Using Method)

Main board connector

CAUTION

Be sure to turn off outdoor unit power before installation.

Installation Method

Installation manual 9

⑤ Fix and fasten components and cables.

⑥ Perform the switch setting according to the instructions.

Installation Method

10 Low Ambient Control Kit

2. Transformer, Terminal Block Installation Method

①Shut off the main power of outdoor unit.

②Install the IO Module in the C/Box by using screws.

③Install the Bracket2 in the C/Box by using screws.

④Install the transformer on the Bracket2 by using screws.

⑤Install the terminal block on the Bracket2 by using screws.

⑥Connect the Main PCB(CN10) to IO Module(CN101) by using the cable assembly.

⑦Connect the blue cable of transformer to the Main PCB(JIG_N), brown cable of transformer to

the Main PCB(JIG_L).

⑧Connect the red cable of transformer to the terminal block (2Pin Yellow terminal block).

⑨Connect a power cable(DC 12V) to CN101(12V,GND) of IO Module.

⑩Connect the black cable of Damper Actuator to the terminal block and connect the cable of

IO Module(CN1_A0(GND(A-)) to the black cable of Damper Actuator.

⑪Connect the red cable of Damper Actuator to CN1_A0(A0_1(A+)) of IO Module.

⑫Set up the main function Dip S/W of IO Module.

(SW101 : L1,L2=On and L3,L4=Off / SW102 : L1,L2=Off)

⑬Set up the Dip S/W of Main Outdoor unit PCB. (Refer to page 21 for details)

⑭Turn on the main power of outdoor unit.

⑮Check the signal to CN1_A0(AO_01,GND) of IO Module and Air Damper.

Transformer

Clamp

Bracket 2

Terminal Block

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