LG PRCKD40E, PRCKD20E User Manual

AHU CONTROL KIT

Owner's Manual

IMPORTANT

• 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.

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Models: PRCKD20E

PRCKD40E

ENGLISH ITALIANO ESPAÑOL FRANÇAIS

PORTUGUESE

2 AHU CONTROL KIT

AHU CONTROL KIT Owner's Manual

TABLE OF CONTENTS

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

■ Necessary sensor by operating mode ................................6

■ Part Description ...................................................................7

■ Basic operation of wired remote controller..........................8

■ Main function of wired remote controller.............................9

■ Supplementary function of wired remote controller..........11

■ Humidifier........................................................................................11

■ Desired humidity control .................................................................12

■ Auto ventilaton ................................................................................13

■ Desired CO

2 level control ................................................................14

■ Reservation function of wired remote controller ...............15

■ Changing Current Time .................................................................15

■ Programming : Setting Simple Reservation..................................17

■ Programming : Setting ON Reservation........................................18

■ Programming : Setting OFF Reservation......................................19

■ Programming : Weekly Reservation..............................................20

■ Programming : Holiday Reservation..............................................22

■ Setting function of wired remote controller installation .....23

■ How to start installation setting mode ...........................................23

■ Setting function by code ................................................................24

■ Central control address setting......................................................25

■ Damper opening setting ................................................................26

■ Remote control Master/Slave setting ............................................28

■ Manual operating mode.....................................................29

■ SA fan operation ............................................................................29

■ RA fan operation............................................................................29

■ Check before requesting for service .................................30

■ Test run ..............................................................................31

■ Self diagnosis function...................................................................31

Safety Precautions

Owner's Manual 3

ENGLISH

■ 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.

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

Always ground the product.

• If the product is not grounded properly, it can cause an electric shock.

When installing the product, always install the electric circuit breaker and the exclusive switch.

• If they are not installed, it can cause a fire or an electric shock.

Do not use damaged circuit breaker or exclusive switch.

• It can cause a fire or an electric shock.

Do not store or use flammable gas or volatile substance near the air conditioner.

• It can cause a fire or problem to the product.

Do not bend or damage the power cable.

• It can cause a fire or an electric shock.

For the electric construction, request for service to the distributor or the service center.

•

Arbitrary disassembly or repair can cause a fire or an electric shock.

System air conditioner can only be installed by specialized service provider with air condition installation certifications.

• Inappropriate installation can cause leakage, fire and electric shock.

When moving or reinstalling the air conditioner, please contact the

MULTI VTM AHU

installation service provider.

• Inappropriate installation can cause leakage, fire and electric shock.

Do not disassemble, repair or reconfigure the product arbitrarily.

• It can cause a fire and electric shock.

WARNING

CAUTION

Safety Precautions

4 AHU CONTROL KIT

The electric construction must be performed by an electrician for electric installation based on the installation manual and designated circuit diagram.

• Use of inappropriate wire and electric construction, can result in an electric shock or a fire. Technical standard for electric equipment

Use designated installation material at the designated location for the product installation.

Do not install the product outdoors.

When opening the box or installing the product, be careful of any sharp objects.

• It can cause an injury.

Use the fuse of rated capacity.

• It can cause a fire or an electric shock.

For the product installation, request for service to the service center or the installation service provider.

•

It can cause a fire , an electric shock, an explosion or an injury.

■ Operation

Do not let water get inside (Controller) the product. Especially do not wash the product with water.

• It can cause an electric shock or a problem to the product.

Do not leave the product near a heating device.

• It can cause a fire.

Do not change or expend the power cord arbitrarily.

• It can cause a fire or an electric shock.

Use exclusive cable for the product.

• It can cause a fire or an electric shock.

If you hear or smell a weird sound or odor, or if you see smoke from the product or if you experience a power outage, pull down the main power switch.

• If not, it can cause a fire or an electric shock.

Do not put any heavy objects on top of the power cable.

• It can cause a fire or an electric shock.

Do not let the work or the user get on top of the product.

• He or she can fall over to get injured.

Do not use any heating devices near the power cable.

• It can cause a fire or an electric shock.

Do not turn off the power with the main power switch while the product is operating.

• It can cause a fire or an electric shock.

Do not operate the switch with wet hands.

• It can cause a fire or an electric shock.

If you are not planning to use the product for a long period of time, pull down the main power switch.

• It can cause a fire or an electric shock.

If the gas leaks, open the window to ventilate the room before operating the product.

• It can cause an explosion or a fire.

Safety Precautions

Owner's Manual 5

ENGLISH

When installing the product, make sure to level the product.

• It can cause vibration or leakage.

Do not install the product at a location where flammable gas is leaking.

• It can cause a fire or a problem to the product.

Do not carry the product by yourself.

• You can get injured by doing so.

■ Operation

CAUTION

Do not put containers with water on top of the product.

• If the water spills over, it can cause a fire or an electric shock.

6 AHU CONTROL KIT

Necessary sensor by operating mode

Operating mode Necessary sensor Function

SA temperature sensor RA temperature sensor

- This runs indoor air conditioning.

Initial external air inlet setting is 30% of the air supply during the air conditioning and this can be changed by the user. But, when the damper actuator is installed on AHU, the setting can be changed.

- This runs the indoor heating.

Initial external air inlet setting is 30% of the air supply during the heating and this can be changed by the user. But, when the damper actuator is installed on AHU, the setting can be changed.

This is the operating function to run indoor air conditioning by controlling multiple outdoor units by comparing the enthalpy of the indoor/outdoor air.

During the power save operation, the operation switches between partial air conditioning operation (Controlling multiple outdoor units) and external air conditioning operation (Outdoor unit OFF, 100% external air flow).

This is operating function is mainly used in between seasons. But if there is no OA temperature/humidity sensor and RA temperature/humidity sensor on the AHU, the power save operation cannot be selected.

This is the operating function to remove the indoor humidity when the humidity level indoor is excessive.

During the dehumidifier operation, the set value is 50%RH and the user cannot change this setting. But if there is no OA temperature/humidity sensor and RA temperature/humidity sensor on the AHU, the dehumidifier operation cannot be selected.

This is the operating function to control the humidity to the set value by detecting the indoor humidity level.

- This can be selected during heating operation. But if there is no humidifier/humidifying valve and RA temperature/humidity sensor on the AHU, the humidifier operation cannot be selected.

- When the mixing temperature during the heating operation is below the set value (5°C), preheating device automatically operates. The preheating device and mixing temperature sensor must be installed on AHU for this to operate automatically.

This is the operating function to control the amount of external air flow so that the CO2 level is controlled within the set level by detecting the indoor CO2 level.

- The initial CO2 level is set to 1000ppm, and can be changed by the user.

This function operates when auto ventilator (Additional operation) is selected during air conditioning or heating operation. But if there is no CO2 sensor and damper actuator on the AHU, the auto ventilator operation cannot be selected.

SA temperature sensor RA temperature sensor

Mixing temperature/

humidity sensor

SA temperature sensor RA temperature sensor

2 sensor

Damper actuator

SA temperature sensor RA temperature sensor

OA temperature/

humidity sensor

SA temperature sensor RA temperature sensor

OA temperature/

humidity sensor

Damper actuator

Air conditioning

Heating

Power save

Dehumidify

Humidification

Auto ventilation

Preheating

Necessary sensor by operating mode

Owner's Manual 7

ENGLISH

Part Description

Name and Function of Remote Contr

oller

OPERATION INDICATION SCREEN

SET TEMPERATURE Button WIRELESS REMOTE

CONTROLLER RECEIVER

• Some products don't receive the wireless signals.

VENTILATION Button OPERATION MODE SELECTION

Button SUBFUNCTION Button FUNCTION SETTING Button EXIT Button ON/ OFF Button ROOM TEMPERATURE Button RESET Button FAN SPEED Button AIR FLOW Button RESERVATION/ TIME SETTING

Button SETTING/ CANCEL Button UP, DOWN, LEFT, RIGHT Button

Please attach the inform label inside of the door. Please choose proper language defend on your country.

4 5

6 7 8

9 10 11

12 13 14

15 16

• 3/4/12/13 does not work.

• 6 Additional operation button depends on the application of the sensor.

8 AHU CONTROL KIT

Basic operation of wired remote controller

Press the Run/Stop button on the control part of the remote controller to start the operation.

Press the Operation Selection button to set the operating mode (Heating/Cooling etc.).

Press the Temperature Control button to set the desired temperature below the indoor temperature. (Based on air conditioning operation)

When you press the Run/Stop button during use, the operation will stop.

(Example) Remote controller display window

▲ Indoor

temperature

▲ Desired

temperature

During the initial operation, the desired temperature is automatically set below the indoor temperature.

Basic operation of wired remote controller

Main function of wired remote controller

Owner's Manual 9

ENGLISH

Every time you press the Run/Stop button, the ON and OFF will be repeated.

Every time you press the Operation Selection button, it will change in the order of Air

Conditioner →Dehumidifier →Heater → Power Save →Fan.

There are operating modes that cannot be set depending on the applied sensor.

<Fan>

Main function of wired remote controller

10 AHU CONTROL KIT

Every time you press the Temperature Control button and the Up/Down button, the desired temperature will change. Air Conditioner/Power Save: 18~30°C / Heater: 16~30°C Dehumidifier/Fan: Desired temperature cannot be changed

When you press the Indoor Temperature button, the Return Temperature of AHU will be displayed for about 5 seconds.

To check the current humidity, press the ‘Left’ button when the indoor temperature is displayed and the indoor humidity will be displayed at Display ‘C’. To check the current CO2 level, press the ‘Right’ button when the indoor temperature is displayed and the current CO2 level will be displayed at Display ‘C’.

Current humidity / CO2 level

(Function set by code) * Code 01: Current humidity * Code 02: Current CO

2 level

: Current humidity

: Current CO

2 level

Function

Code

Setting

(Example)

Owner's Manual 11

ENGLISH

Supplementary function of wired remote controller

* Humidifier can only be set during heating

operation.

* Humidifier operation can only be used when the

humidifier is installed.

* The humidifier operation is controlled by the

desired temperature set.

Supplementary function of wired remote controller

Humidifier

Press the Additional Operation

button.

When the Humidifier icon

flashes in Display ‘B’, press the Set/Cancel button to start the humidifier.

When you press the OK/CLEAR

button one more time, the humidifier will stop.

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