LG PQDSBC User Manual

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Page 1

LG 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

Page 2

2 Dry contact for communication

Dry contact for communication Owner’s &installation manual

TABLE OF CONTENTS

■ Safety Precautions

.............................................................

3~4

■ Name of each part

..................................................................

■ 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

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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.

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

CAUTION

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Safety Precautions

4 Dry 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

Page 5

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)

Page 6

Installation Method

6 Dry 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.

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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.

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Setting and using method

8 Dry 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

Page 9

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)

Page 10

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)

Page 11

Setting and using method

Owner’s & installation manual 11

4. Control mode setting

■ Use the CONTROL_MODE_SW to set the control mode you want from 0~D.

■ Description of each control mode

1) Cancel mode for use of dry contact for communication

➲ Set this when the Dry contact for communication is connected but not used.

➲ Indoor control priority

Central control > Dry contact for communication > Wired/Wireless remote controller, indoor unit button

➲ Dry contact for communication controls the indoor unit according to the applicable mode when there

is a change in input of A and B.

CONTROL_MODE_SW

Input A Input B Operating mode

OFF OFF

ON OFF

OFF ON

ON ON

The indoor unit cannot be controlled through the

Dry contact for communication

No change in indoor unit condition

CONTROL_

MODE S/W

Page 12

Setting and using method

12 Dry contact for communication

2) General mode

Input A Input B Operating mode

OFF OFF

ON OFF

OFF ON

ON ON

OFF OFF

ON OFF

OFF ON

ON ON

OFF OFF

ON OFF

OFF ON

ON ON

OFF OFF

ON OFF

OFF ON

ON ON

OFF OFF

ON OFF

OFF ON

ON ON

OFF OFF

ON OFF

OFF ON

ON ON

Indoor unit stopped, locked

Indoor unit prior operating condition maintained, unlocked

Indoor unit stopped, locked

Indoor unit operating, unlocked

Indoor unit stopped, locked

Indoor unit prior operating condition maintained, unlocked

Indoor unit operating, unlocked

Indoor unit stopped, locked

Indoor unit prior operating condition maintained, unlocked

Indoor unit prior operating condition maintained, locked

Indoor unit prior operating condition maintained, unlocked

Indoor unit prior operating condition maintained, locked

Indoor unit operating, unlocked

CONTROL_ MODE S/W

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Setting and using method

Owner’s & installation manual 13

3) Fan level setting mode

4) Power save mode

➲ When the indoor unit is operating in Dry contact for communication, the fan level can be changed by

other controller when the fan level is set to low level and the indoor is in unlocked condition.

➲ When setting 9, A mode, the TEMP_SETTING must always be set to ON. ➲ Power save mode: Adjust the set temperature to +3°C for cooling and -3°C for heating.

Input A Input B Operating mode

OFF OFF

ON OFF

OFF ON

ON ON

OFF OFF

ON OFF

OFF ON

ON ON

Indoor unit operating at low level, locked

Indoor unit operating at low level, unlocked

Indoor unit stopped, locked

Indoor unit operating at low level, locked

Indoor unit operating at low level, unlocked

Indoor unit stopped, locked

Indoor unit prior operating condition maintained, unlocked

CONTROL_

MODE S/W

Input A Input B Operating mode

OFF OFF

ON OFF

OFF ON

ON ON

OFF OFF

ON OFF

OFF ON

ON ON

Indoor unit operating in power save mode, locked

Indoor unit operating in power save mode, unlocked

Indoor unit stopped, locked

Indoor unit operating not in power save mode, unlocked

Indoor unit operating in power save mode, locked

Indoor unit operating in power save mode, unlocked

Indoor unit stopped, locked

CONTROL_

MODE S/W

Page 14

Setting and using method

14 Dry contact for communication

5) Compressor stop mode

➲ Compressor stop mode: The compressor is stopped during cool/heat operation.

6) Operating mode selection mode

➲ Power save mode: Adjust the set temperature to +3°C for cooling and -3°C for heating.

Input A Input B Operating mode

OFF OFF

ON OFF

OFF ON

ON ON

Indoor unit operating (Compressor in stop mode), locked

Indoor unit prior operating condition maintained

(Compressor not in stop mode), unlocked

Indoor unit stopped, locked

CONTROL_

MODE S/W

Input A Input B Operating mode

OFF OFF

ON OFF

OFF ON

ON ON

OFF OFF

ON OFF

OFF ON

ON ON

Indoor unit stopped, unlocked

Indoor unit in cool/high operation, unlocked

Indoor unit in heat/high operation, unlocked

Indoor unit in fan/high operation, unlocked

Indoor unit stopped, locked

Indoor unit in cool/high operation, locked

Indoor unit in heat/high operation, locked

Indoor unit in fan/high operation, locked

CONTROL_

MODE S/W

Page 15

Setting and using method

Owner’s & installation manual 15

5. Indoor unit monitoring

■ Monitoring whether the indoor unit is operating: Refer to below and connect to the control device that you want to control.

■ Monitoring indoor unit error: Refer to below and connect to the control device that you want to control.

Operation Display

Error Display

Local Supply

(Depends on Operation display power type)

Power

AC or DC

Local Supply

(Depends on Error display power type)

Power

AC or DC

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P/No.: MFL42540202

After reading this manual, keep it in a place easily accessible to the user for future reference.

Printed in Korea