LG PRCKD40E INSTALLATION MANUAL

LG AHU CONTROL KIT

Installation 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

2 AHU CONTROL KIT

AHU CONTROL KIT Installation Manual

TABLE OF CONTENTS

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

Installation configuration ......................................................................5

Supplies ...............................................................................................6

Wiring diagram .....................................................................................9

Installation flowchart ..........................................................................13

CONTROL KIT Installation.................................................................14

Pipe temperature sensor connection .................................................16

Outdoor communication cable connection.........................................17

Precaution..........................................................................................18

AHU sensor specification...................................................................20

AHU sensor connection .....................................................................21

AHU controller setting ........................................................................27

Communication PCB setting ..............................................................32

Electric wiring work ............................................................................34

Test run ..............................................................................................36

Safety Precautions

Installation Manual 3

■ 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

Do not use the existing manifold gauge for R22 refrigerant.

• To charge the refrigerant stably, always use the manifold gauge for high pressure (R410A).

Install the air conditioner at a designated location using the designated material.

• Heat exchanger inlet/outlet pipe location.

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 mix existing R22 pipe and installation products for the installation.

• When you mix the mineral oil of R22 and R410A oil (PVE), it can decompose with water to cause problems to the product.

Do not mix other refrigerant with the designated refrigerant (R410A) during the installation or moving the air conditioner.

• When other refrigerant is mixed with the original refrigerant, it can cause a problem in the refrigerant cycle and damage the product.

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

■ Operation

■ Installation

Do not install the air conditioner outdoors.

• If installed outdoor inevitably, consult Multi

VTM

AHU installation service provider.

Do not let any worker or user climb on top of the product.

• The person can get seriously injured.

Make sure that water does not get inside the product (Controller). Especially, do not clean the product with water.

• It can cause electric shock and problems.

When the air conditioner is submersed in water, always consult

MULTI V

TM AHU

installation service provider.

• It can cause a fire and electric shock.

Do not keep any heating devices near the product.

• It can cause a fire.

After the product installation and repair, always check for gas leakage.

• It can cause problems in the product.

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

• It can cause vibration and leakage.

Do not install the product where flammable gas leaks.

• It can cause a fire and problems to the product.

■ Operation

If the refrigerant leaked while installing the product, always ventilate the room.

• The refrigerant gas can react with the fire to turn into hazardous gas to cause an accident.

CAUTION

Installation Manual 5

Installation Scene

Installation configuration

60H

8 -1

No. Name Remarks

Air Handling Unit -

CONTROL KIT PRCKD20E / PRCKD40E

EXPANSION KIT PATX13A0E/20A0E/25A0E/35A0E

Outdoor unit Multi V

Pipe temperature sensor IN Sensor: Ø5, Length: 5m,Cable color: Black

Pipe temperature sensor OUT Sensor: Ø7, Length: 5m, Cable color: Red

-1

Temperature sensor RA -50~50°C/ AC 24V / DC 0~10V

-2 Temperature sensor SA -50~50°C/ AC 24V / DC 0~10V

-1 Return Fan -

-2 Supply Fan -

MCC MCC

Installation components

Installation configuration diagram

Precaution during installation configuration

1. MCC is the construction of the equipment by the equipment provider and must be separately discussed before the installation.

2. Temperature or Temperature/Humidity sensor must be installed on the SA/RA duct for normal operation.

220V0V/ 60H

EAEAOA

7 -1 7 -2

8 -1

MCC

z/1P1PHASE

8 -2

• RA: Return air

• EA: Exhaust air

• OA: Outdoor air

• SA: Supply air

Powe r ca ble Refrigerant pipe Pipe temperature sensor Signal cable Communication cable Refrigerant flow (Air conditioning) Refrigerant flow (Heating)

Basic parts supplied

Sensor (Separately sold)

• To operate the product, you must separately purchase and install the following temperature or temperature/humidity sensor.

• Separate specification and installation location for the applied sensor can be checked from ‘AHU sensor specification”.

6 AHU CONTROL KIT

Supplies

CONTROL KIT

- Quantity: 1EA

- Maximum number of outdoor units that can be connected:

- Quantity: 4EA

- Bolt quantity: 4EA Specification: M10/70mm

- Nut quantity:4EA Specification: M10

- Quantity: 1EA

- Quantity: 1EA - Quantity: 1EA

- Quantity: 1EA

- Maximum number of outdoor units that can be connected:

- Quantity: 8EA

Model name

PRCKD20E

PRCKD40EE

Wired remote

controller

Installation bolt/nut

Installation

manual

User manual

온도조절 운전/정지

Installation

manual

User

manual

Item Specification

Temperature sensor - Power: AC24V

- Output signal: DC 0~10V

- Temperature range: -50~50°C

Temperature/ - Power: AC24V

Humidity sensor - Output signal: DC 0~10V

- Temperature range: -40~70°C

- Humidity range: 0~95%RH

Supplies

Installation Manual 7

Product configuration

PRCKD20E

* ( ) refers to the quantity applied to the PRCKD40E model.

No. Part name

Wired remote controller

Door

Selection switch

Lamp

Transformer

Terminal block #1

Terminal block #2

Wiring circuit breaker

Specification

- 1 AHU Controller -

1.6T

ON/OFF

Power/SA/RA

Input: 220V Output: 24V Capacity: 100VA

15A * 1.25mm

20A * 1.25mm

15A

Quantity

No.

1 Controller Case

2 250V, 5A 3

35A2

2 2(4)

1 1.6T 1

Part name Specification

Fuse

Relay

Communication PCB

Communication PCB case

Control box

Quantity

2(4)

Supplies

8 AHU CONTROL KIT

4-Ø12 Hole

FH G F

(Side) (Front) (Rear)

(Floor)

PRCKD20E / PRCKD40E

Remarks

A (mm) 600 Length

B (mm) 750 Height

C (mm) 280 Width

D (mm) 500

Hole connecting to AHU

E (mm) 650

F 4-Ø16 Hole Pipe sensor connector

G 10-Ø25 Hole Sensor/Communication cable connector

H Ø30 Hole Power cable connector

Weight

Product 43.5 Product weight

Packaging 48 Weight after packaging

■ Depending on the installation personnel, the cable drawn to the F/G/H hole can be changed, and use the flexible pipe and connector that fits each hole.

Installation Manual 9

Wiring diagram

Part diagram

PRCKD40E

AHU controller part

Terminal block part #2

Terminal block part #1

Safety part

Communication PCB part #2

Communication PCB part

AHU controller part

Terminal block part #2

Terminal block part #1

(Inside product)

Safety part

Communication PCB part #2

Communication PCB part

■ Communication PCB #1 part is not attached to the PRCKD20E model.

Wiring diagram

10 AHU CONTROL KIT

AHU controller part

Communication PCB part (PRCKD20E)

Wiring diagram

Installation Manual 11

Communication PCB part (PRCKD40E)

Safety part (Transformer, wiring circuit breaker)

Wiring diagram

12 AHU CONTROL KIT

Terminal block part #1

Terminal block part #2

Installation flowchart

Installation Manual 13

Installation flowchart

■ This order can change depending on the construction site. Therefore please read

the installation manual prior to the applicable work.

CONTROL KIT installation

Pipe temperature

sensor connection

Outdoor unit communication

cable connection

AHU sensor connection

AHU controller setting

Communication PCB setting

• Because 2 Outdoor units can be connected to 1 communication PCB, be careful not to get the pipe temperature sensor and communication cable connection to 1 Outdoor unit mixed and connected.

• Temperature sensor that fits the specification must be installed in the SA duct and RA duct. (Specification: -50~50°C/ AC 24V / DC 0~10V)

• Install the temperature sensor only for the SA/RA duct and Dip switch does not need to be set.

• Depending on the installation site, if the optional sensor is applied, set the dip switch according to the setting method.

• Be careful of Dip switch setting according to whether Outdoor unit is connected or not.

• When connecting Outdoor unit, make sure to set Rotary switch differently.

Electric wiring

Outdoor unit address setting

Operation check

• After completing the installation of CONTROL KIT, always set the address of Outdoor unit.

14 AHU CONTROL KIT

1. Check the location to install CONTROL KIT from the AHU product.

2. Check location of the hole on the rear side of CONTROL KIT and check whether accessories exist for the installation.

CONTROL KIT Installation

Product installation location check

CONTROL KIT Installation

Detail

650 mm

500

4-Ø12 Hole

4 holes

Installation bolt (4EA)

Installation nut (4EA)

Installation accessories

<AHU>

Installation location (Factory condition)

■ The installation location of CONTROL KIT is coordinated prior to the AHU factory

delivery and the holes are drilled from the factory before the product is shipped.

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