LG PUCKA0 User manual

ENGLISH

P/NO : MFL69647501

INSTALLATION MANUAL

AIR

CONDITIONER

www.lg.com

Applied(AHU)

Comm.kit

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.

2AHU Control Kit

AHU Control Kit Installation Manual

TABLE OF CONTENTS

nSafety Precautions............................................................3

n Installation Scene..............................................................4

n Supplies.............................................................................5

n Optional Accessories ........................................................5

n Part Description.................................................................6

n Before Installation .............................................................7

n Control Kit Installation........................................................9

Mechanical installation...................................................................................9

Electric wiring work .................................................................................10-12

Dip switch setting .........................................................................................12

Dry contact connection_optional accessory................................................13

n Thermistors Installation....................................................14

Pipe thermistors installation....................................................................14-16

Room thermistor...........................................................................................17

n Test Operation..................................................................18

n Troubleshooting ...............................................................19

Safety Precautions

Installation Manual 3

nInstallation

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions must be followed.

nIncorrect operation due to ignoring instruction will cause harm or damage. The seriousness is

classified by the following indications.

nMeanings 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

When the product is soaked (flooded or

submerged), contact an Authorized Service

Center.

• There is risk of fire or electric shock.

Be cautious that water could not enter the

product.

• There is risk of fire, electric shock, or product

damage.

nOperation

Use the correctly rated

breaker or fuse.

• There is risk of fire or electric

shock.

Do not install, remove, or re-

install the unit by yourself

(customer).

• There is risk of fire, electric

shock, explosion, or injury.

For installation, always

contact the dealer or an

Authorized Service Center.

• There is risk of fire, electric

shock, explosion, or injury.

Don't touch with the

hands while the power is

•

There is risk of fire or electric

shock.

Use standard

parts(connector).

•

Do not disassemble or repair

the product. There is risk of fire

or electric shock.

For electrical work, contact

the dealer, seller, a qualified

electrician, or an Authorized

Service Center.

•

Do not disassemble or repair

the product. There is risk of fire

or electric shock.

4AHU Control Kit

Installation Scene

Signal

Pipe

Thermistor 9

Field supply

DDC

Air flow

Cooling

Heating

Cooling

Heating

Air Handling Unit

Outdoor Unit

AHU Control Kit(PUCKA0)

DDC

Field supply

Universal

Field supply(Central control Device)

Parts and components

Control kit wiring

Pipe thermistors

Room thermistor

Remote controller(PQRCUSA0/1)

Dry contact (PQDSBC)

Signal

(Power supply and communication between control kit and outdoor unit)

Evaporator (In/Out) control of Air Handling Unit

Return air control

Optional accessory

• Fan signal(Low / Middle / High)

• Defrost / Heating / Cooling signal

• Themal On/Off

Wiring connections

No. Name Remarks

Installation Manual 5

Supplies / Optional Accessories

Supplies

Components

Quantity(EA)

1 1 2(Pipe In/Out) 1 10(Each 1) 1(Panel)

2(Screw)

AHU Control Kit Room thermistor Pipe thermistors Installation manual Capacity setting

option PCB

Panel(Dry contact

support)

Shape

PUCKA0



P/NO: MFL69647501

INSTALLATION MANUAL

AIR

CONDITIONER

www.lg.com

Applied(AHU)

Comm.kit

Please readthis install ation manual completelybefore installing the product.

Installation work must be performed in accordancewith the national wiring

standardsby authorized personnel only.

Please retainthis install ation manual for futurereference after reading it

thoroughly.

Optional Accessories

Components Remote controller Dry contact

PQRCUSA0/1 PQDSBC

Model name

Shape

Accessories

* For further details of the accessories, refer to the manual provided at the time of purchasing the

accessories.

6AHU Control Kit

Part Description

CN-OPTION

Plastic (+) bolt

Control box cover

Main PCB

Option PCB(24k)

Main PCB case

Terminal block (communication)

Terminal block (POWER Supply)

Panel

Support Tie wrap

Control box case

Cable gland(2type)

Bracket

No. Part Name Quantity(EA)

Installation Manual 7

Before Installation

n Don't install or operate the unit in rooms mentioned below.

①

Where mineral oil, like cutting oil is present.

②

Where the air contains high levels of salt such as air near the ocean.

③

Where sulphurous gas is present such as that in areas of hot spring.

④

In vehicles or vessels.

⑤

Where voltage fluctuates a lot such as that in factories.

⑥

Where high concentration of vapor spray are present.

⑦

Where machines generating electromagnetic waves are present.

⑧

Where acidic or alkaline vapor is present.

⑨

The option boxes must be installed with entrances downward.

⑩

If you want to install the product outdoors, it should be installed with outdoor casing.

CAUTION

n Check the mentioned below, when you apply the AHU(Field supply).

①

If the AHU (Field supply) provided in the field is exclusively for heating, you must not

change the operating mode to cooling on the remote controller. If not, it can cause electric

shock, injury or death. If you want to operate in cooling mode, AHU (Field supply) must

comply with the following details.

(Following)

- The insulation level of AHU (Field supply) motor must be ‘F’ or above, and the protection

level must satisfy ‘IP 54’.

- AHU (Field supply) must have the drain pan installed.

②

For refrigerant piping of outdoor unit, refer to the installation manual supplied with the

outdoor unit.

③

For installation of the wired remote controller(PQRCUSA0/1), refer to the manual supplied

with the wired remote controller.

④

For connection of the Dry contact (PQDSBC), refer to the manual supplied with the Dry

contact (PQDSBC).

n AHU Control Kit

①

Thermistor cable and remote controller wire should be located at least 50mm away from

power supply wires and from wires to the controller. Not following this guideline may result

in malfunction due to electrical noise.

②

Use only specified wires, and tightly connect wires to the terminals. Keep wiring in neat

order so that it does not obstruct other equipment. Incomplete connections could result in

overheating, and in worse case electric shock or fire.

8AHU Control Kit

Before Installation

Selection of Evaporator(Air Handling Unit)

See table below for applicable units

Selecting the capacity setting 'Option PCB'(Accessory) according to the capacity mentioned below.

The corresponding capacity setting '

Option

PCB' needs to be selected depending on the need

capacity.

- After checking the need capacity, remove the 24k

Option

PCB equipped in the main PCB,

and set up the

Option

PCB fitted the need capacity in the main PCB.

CAUTION

Saturated Suction Temperature (SST) = 6°C, SH (Superheat) = 5K, Air Temperature = 27°C DB / 19°C WB.

(Main PCB)

Capacity setting

'Option PCB'

Detail

(Main PCB)

Option PCB

P/NO

Capacity

(Btu/h)

Standard heat

exchanger volume

(103× m3)

Maximum heat

exchanger capacity

(kW)

Air Flow rate

(CMM)

EBR65102901 12 k 2.2 3.5 9~10

EBR65102902 18 k 2.4 5.0 13~16.5

EBR65102903 24 k 2.6 7.1 14~18

EBR65102904 30 k 2.9 8.0 20~26.5

EBR65102905 36 k 3.1 10.0 26.5~32

EBR65102906 42 k 3.4 12.5 28~36

EBR65102907 48 k 4.0 14.0 30~40

EBR65102908 60 k 4.7 15.0 40~50

EBR52358920 70 k 5.2 20.0 60~70

EBR52358921 85 k 5.9 23.0 64~80

Installation Manual 9

Control Kit Installation

Mechanical installation

1. Remove the Control Kit box cover by unscrewing the plastic (+) bolt(4EA).

2. Drill 4 holes on correct position and fix the Control Kit box securely with 4 screws(Field supply)

through the provided holes Ø4.5 mm(Reference the length of the holes Ø4.5)

298 mm

Provided holes

Ø4.5 mm (4EA)

189 mm

10 AHU Control Kit

Control Kit Installation

Electric Wiring Work

1. For electric wiring, refer to figure 'Circuit diagram' mentioned below.

n Circuit diagram

CN-POWER AC POWER SUPPLY

AC POWER LINE INPUT FOR INDOOR CONTROLLER

CN-D/PUMP FIELD WIRING THERMOSTAT ON/OFF SIGNAL

CN-MOTOR FAN MOTOR CONTROLLER FAN SPEED CONTROLL OUTPUT

CN-OUT FIELD WIRING

DEFROST, HEATING, COOLING SIGNAL OUTPUT

CN-OPTION OPTION PCB

COMMUNICATION BETWEEN MAIN AND OPTION

CN-FLOAT FLOAT SWITCH INPUT FLOAT SWITCH SENSING

CN-REMO REMOTE CONTROLLER REMOTE CONTROL LINE

CN-ROOM ROOM SENSOR ROOM AIR THERMISTOR

CN-PIPE/IN SUCTION PIPE SENSOR PIPE IN THERMISTOR

CN-CC DRY CONTACT DRY CONTACT LINE

CN-PIPE/OUT DISCHARGE PIPE SENSOR PIPE OUT THERMISTOR

LOCATION POINT FUNCTION

CONNECTOR

NUMBER

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