LG PQDSB Guía de inicio rápido

Dry contact for communication

Owner's & installation manual

IMPORTANT

• Please read this 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.

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Models: PQDSBC

2Dry contact for communication

Dry contact for communication Owner’s &installation manual

TABLE OF CONTENTS

■Safety Precautions .............................................................3~4

■Name of each part..................................................................5

■Installation Method .............................................................6~7

Installation inside of the indoor unit..........................................................6

Installation outside of the indoor unit .......................................................7

■Setting and using method ................................................8~18

1. Power supply and indoor unit connection............................................8

2. Setting of Contact Signal Input ............................................................9

3. Setting the desired temperature ........................................................10

4. Control mode setting..........................................................................11

5. Indoor unit monitoring ........................................................................15

Safety Precautions

Owner’s & installation manual 3

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 installation

Service center

Do not install the product where it can

be exposed to rain.

•

It can cause problems to the product.

Do not install the product in a humid

location.

•

It can cause problems to the product.

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

Safety Precautions

4Dry contact for communication

■During use

Do not modify or extend the

power cord.

• It can cause a fire and

electric shock.

Do not use any flaming

devices near the product.

• It can cause a fire.

Do not use any heating

devices near 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 problems to the

product.

Service center

Name of each part

Owner’s & installation manual 5

Name of each part

1. CN_INDOOR : Connect communication wire between indoor unit and Dry contact for communication

and supply power to Dry contact for communication

2. CN_PI485 : PI485 connector

3. CHANGE_OVER_SW : Switch to select voltage (5V-12V) of contact point

4. CN_CONTROL : Contact point signal input

5. CONTROL_MODE_SW : Switch to select the control mode

6. SETTING_SW : Switch to select whether to use set function of Dry contact for communication

7. TEMP_SETTING : Switch to set the desired temperature of the indoor unit

8. CN_OUT (O1, O2) : Connector to show whether the indoor unit is operating

9. CN_OUT (E3, E4) : Connector to show whether there is an error with the indoor unit

10. DISPLAY_LED : LED to display the status of the Dry contact for communication

11. RESET_SW : Reset switch

DRY CONTACT FOR COMMUNICATION (DRY_CONTACT FOR COMMUNICATION)

NOT

USB

CN_OUT

CHANGE

OVER_SW

VOLT NON

VOLT

TEMP

SETTING

(Front case) (Rear case)

(Top)

(Internal PCB board)

(Side) (Side)

Installation Method

6Dry contact for communication

Installation Method

Installation inside of the indoor unit

Loose 4 screws anchoring PCB and then separate the rear case and PCB

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

Method)

Perform the switch setting according to switch setting method. (Please refer to Setting and Using

Method)

Fix PCB on suitable space inside of the indoor unit.

1. Install the product on flat surface and install anchoring screws at more than 2 places. Otherwise

the central controller may not be anchored properly.

2. Do not tighten anchoring screws too tightly. It may cause deformation of the case.

3. Do not deform the case at random. It may cause malfunction of the central controller.

Installation Method

Owner’s & installation manual 7

Installation outside of the indoor unit

Anchor the rear case of Dry Contact for

communication on the installation surface at

holes using anchor screws.

Connect connection wires according to the

instructions.

(Reference to Setting and Using Method)

Then, connect wire to PCB after going

through hole of .

Join the front case and the rear case, anchor

the front case at holes using anchor screws.

Please cut the pole which is located in side of the front case properly.

Perform the switch setting according to switch setting method. (Reference to Setting and Using Method)

DRY CONTACT UNIT

1. Install the product on flat surface and install anchoring screws at more than 2 places. Otherwise

the central controller may not be anchored properly.

2. Do not tighten anchoring screws too tightly. It may cause deformation of the case.

3. Do not deform the case at random. It may cause malfunction of the central controller.

Setting and using method

8Dry contact for communication

1. Power supply and indoor unit connection

You must press the RESET switch when you are completed with all the settings to reflect the

settings.

■

When using the Dry contact for communication independently

■When using with the central controller (Only when the indoor

unit PCB is a non-communication model)

Indoor unit

PCB

Indoor unit

PCB

PI485: Connect to central controller

CN_PI485

CN_INDOOR

CN_INDOORCN_INDOOR

Setting and using method

Owner’s & installation manual 9

2. Setting of Contact Signal Input

■For no power contact point signal input

■For power contact point signal input

LG does not

supply this section

(Local supply)

LG does not

supply this section

(Local supply)

Setting and using method

10 Dry contact for communication

3. Setting the desired temperature

■When setting the desired temperature of the Dry contact for

communication

: When operating the indoor unit, set the desired temperature according to the TEMP_SW setting.

When the indoor unit is unlocked, the desired temperature can be reset by other controller

1) Turn on the TEMP_SETTING switch of SETTING_SW.

2) Use the TEMP_SW to set the temperature as shown below.

■When not using the desired temperature setting of Dry

contact for communication

1) Turn off the TEMP_SETTING switch of SETTING_SW.

➲When operating the indoor unit initially in Dry contact for communication, set the desired

temperature to 18°C.

SETTING_SW

01234567

18 19 20 21 22 23 24 25

Desired temperature setting table

TEMP SW

setting

Temperature

setting(°C)

89ABCDEF

26 27 28 29 30 30 30 30

TEMP SW

setting

Temperature

setting(°C)

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