LG PRVC1 Manuale utente

P/NO : MFL42540226

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.

MODEL : PRVC1

Low Ambient Control Kit

Low Ambient Control Kit Installation manual

TABLE OF CONTENTS

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

■Accessory Parts ....................................................................................5

■Name of each part ................................................................................6

■Installation Method................................................................................7

1. Single unit install Guide....................................................................7

2. Series unit install Guide..................................................................11

3. Unit Placement and Clearances.....................................................15

■Setting and using method ...................................................................17

1. Power source input.........................................................................17

2. Wiring for Low Ambient Control PCB and transformer...................19

3. Wiring for Damper Actuator............................................................20

4. Setting of ‘SWDIP’..........................................................................21

5. Setting of outdoor unit dip switch ..................................................22

2Low Ambient Control Kit

■During installation

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

Please install the

designated location in the

Control box.

• It can cause the breakdown

or accident.

Do not touch the board

when the power is

connected .

•

It can cause a fire, electric

shock, explosion, injury and

problem to the product.

Always request for

installation of the product to

the service center or the

installation service provider.

•

It can cause a fire, electric

shock, explosion and injury.

When reinstalling the previously

installed product, request for service to

the service center or the installation

service provider.

•

It can cause a fire, electric shock, explosion and

injury.

■During use

4Low Ambient Control Kit

Safety Precautions

Do not modify or extend the

power cord.

• It can cause a fire and

electric shock.

Do not pour water inside the

product.

• It can cause an electric

shock and problem to the

product.

When the product is submersed

in water, always request for

service to the service center or

the installation service provider.

• It can cause a fire and

electric shock.

Make the children and the

elderly use the product with

the help of a guardian.

• It can cause a safety

accident and problems to

the product.

Do not give impact to the

product.

• It can cause problem to the

product.

Installation manual 5

Accessory Parts

Cable Assy Terminal Block Assy

Tie (2EA)

Low Ambient Control PCB Transformer

Screw (6EA)

Panel 1EA

Name of each part

6Low Ambient Control Kit

1. CN_PWR : Power input terminal(DC 12V)

2. CN_AO : Signal output terminal to control a damper actuator

3. CN_OUT : Outdoor unit connector

4. BUS_A : RS-485 (+) terminal

5. BUS_B : RS-485 (-) terminal

6. SWDIP : Switch to select main function

7. SW1 : Reset switch

Low Ambient Control Kit

16 7

3 2

Name of each part

Installation manual 7

Installation Method

1. Shut off the main power line of outdoor unit.

2. Install the LAC(Low Ambient Control) PCB in the control box by using screws.

3. Install the panel assy in the control box by using screws.

4. Connect the Main PCB(CN41) to LAC(CN_OUT) by using the cable assy.

5. Connect the blue wire of transformer to the Main PCB (JIG1(L), JIG2(N)).

1. Single unit install Guide

Installation Method

LAC PCB

Step 2 Step 3

Terminal block

Transformer

Panel

Step 4 Step 5

CN41

CN_OUT

GND

JIG1(L) JIG2(N)

Installation Method

8Low Ambient Control Kit

6. Connect the red wire of transformer to the terminal block (2Pin yellow terminal block).

7. Connect a power cable (DC 12V) to CN_PWR (12V, GND) of LAC

8. Connect the common wire of Damper Actuator to the terminal block and connect the wire of

LAC(CN_AO(GND(A-)) to the common wire of Damper Actuator.

9. Connect the wire of AC 24V of Damper Actuator to the terminal block

Step 6 Step 7

GND 12V

CN_PWR

Step 8 Step 9

AC 24V Power

for Damper Actuator

of Master

GND

Common

AC 24V Power

for Damper Actuator

of Master

AC 24V

GND

Common

Installation Method

Installation manual 9

10. Connect the wire of control signal of Damper Actuator to CN_AO(AO_01(A+)) of LAC

11. Set up the main function dip switch of LAC PCB.

12. Set up the dip switch of MAIN outdoor unit PCB.

13. Using the clamp and tie provided securely attach the wire as shown in the figure.

Step 10 Step 11

1234

AC 24V Power

for Damper Actuator

of Master

DC 0~10V Control Signal

for Damper Actuator

of Master

Master(AO_01(A+))

Step 12 Step 13

SW01B SW02B

1234567

10 Low Ambient Control Kit

14. Turn on the main power line of outdoor unit.

15. Check the signal to CN_AO(AO_01, GND) of LAC and Air Damper.

Step 14,15

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