LG PRCKD21E.ENCXUAE Installation guide

P/NO : MFL62049610

INSTALLATION MANUAL

AIR

CONDITIONER

www.lg.com

• 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.

Applied(AHU)

Control Kit

ENGLISH

• Do not cool excessively indoors. This may be harmful for your health and may consume more

electricity.

• Block sunlight with blinds or curtains while you are operating the air conditioner.

• Keep doors or windows closed tightly while you are operating the air conditioner.

• Adjust the direction of the air flow vertically or horizontally to circulate indoor air.

• Speed up the fan to cool or warm indoor air quickly, in a short period of time.

• Open windows regularly for ventilation as the indoor air quality may deteriorate if the air condi-

tioner is used for many hours.

• Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block the

air flow or weaken the cooling / dehumidifying functions.

For your records

Staple your receipt to this page in case you need it to prove the date of purchase or for warranty

purposes. Write the model number and the serial number here:

Model number :

Serial number :

You can find them on a label on the side of each unit.

Dealer’s name :

Date of purchase :

Here are some tips that will help you minimize the power consumption when you use the air

conditioner. You can use your air conditioner more efficiently by referring to the instructions

below:

TIPS FOR SAVING ENERGY

2

ENGLISH

TIPS FOR SAVING ENERGY

3

IMPORTANT SAFETY INSTRUCTIONS

ENGLISH

IMPORTANT SAFETY INSTRUCTIONS

READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.

Always comply with the following precautions to avoid dangerous situations and ensure peak

performance of your product.

WARNING

It can result in serious injury or death when the directions are ignored.

CAUTION

It can result in minor injury or product damage when the directions are ignored.

WARNING

• Installation or repairs made by unqualified persons can result in hazards to you and others.

• The product shall be installed according to the Wiring regulations of the corresponding coun-

try.

• The information contained in the manual is intended for use by a qualified service technician

familiar with safety procedures and equipped with the proper tools and test instruments.

• Failure to carefully read and follow all instructions in this manual can result in equipment mal-

function, property damage, personal injury and/or death.

Installation

• The electrical work shall be performed by the technician with qualification according to Electric Facil-

ity Technical Standard and this installation manual, and the specified circuits must be used.

- If power capacity is inadequate or if the electrical work is defective, it may cause fire or electric

shock.

• Make sure to perform the grounding work.

- If it is not grounded, it may cause electric shock.

• Make sure to install leakage current breaker and exclusive switch.

- If they are not installed, it may cause fire or electric shock.

• Do not use damaged leakage current breaker or switch.

- It may cause fire or electric shock.

• System air conditioner installation can only be performed by the specialty store with system air con-

ditioner installation license.

- Inadequate installation may cause water leakage, fire, or electric shock.

• During the relocation or re-installation of the product, request to MULTI V AHU installation specialty

store.

- Inadequate installation may cause water leakage, fire, or electric shock.

• Do not disassemble, repair, or modify the product without authorization.

- It may cause fire or electric shock.

• Do not keep or use combustible gas or inflammable material near the product.

- It may cause fire or product disorder.

• Please use the circuit breaker and fuse with the specified capacity.

- If a circuit breaker or fuse above the specified capacity or steel or copper wire is used, it may

cause overall product disorder or fire.

!

• Do not twist or damage the power cable.

- It may cause fire or electric shock.

• During the electric work, request to the specialty store where you purchased the product or the

service center.

- If you disassemble or repair without authorization, it may cause fire or electric shock.

• During the opening of the package or installation, be careful not to touch the sharp parts.

- Otherwise, it may cause injury.

• During the product installation, make sure to request the service center or installation specialty

store.

- It may cause fire or electric shock.

• The product shall be installed in the designated place using the designated installation material.

- It may cause disorder.

• Do not install the product outside.

- It may cause disorder or electric shock.

Operation

• Do not change or extend the power cable without authorization.

- It may cause fire or electric shock.

• Please use the power cable exclusive for the product.

- It may cause fire or electric shock.

• Do not let water enter inside the product (control part). Especially, do not wash the product with

water.

- It may cause electric shock or disorder.

• When you turn off the main power switch, do not touch it with wet hand.

- It may cause fire or electric shock.

• When the product is flooded, make sure to contact MULTI V AHU installation specialty store.

- It may cause fire or electric shock.

• If there is an abnormal sound, odor, or smoke from the product, or during the black out, turn off the

main power switch.

- Otherwise, it may cause fire or electric shock.

• Do not place an heavy object on the power cable.

- It may cause fire or electric shock.

• Do not let a worker or user climb up on the product.

- They may fall and get severe injury.

• Do not use a heating product near the power cable.

- It may cause fire or electric shock.

• If the product is not used for a long period of time, turn off the main power switch.

- It may cause fire or disorder.

• During the product operation, do not turn off the product with the main power switch.

- It may cause fire or electric shock.

IMPORTANT SAFETY INSTRUCTIONS

4

ENGLISH

IMPORTANT SAFETY INSTRUCTIONS

5

ENGLISH

CAUTION

Installation

• Do not install in a place with leakage of combustible gas.

- If it is installed in a place with leakage of combustible gas, it may cause property damage.

• If it is installed in a place like hospital, communication station, etc., provide sufficient protection facil-

ity for noise.

- Inverter equipment, personal generator, high frequency medical equipment, and electronic commu-

nication equipment may cause abnormal operation or disorder of the product. On the other hand,

the product may cause noise or have effect that disturbs the medical equipment or video broad-

casting.

• Do not let children touch the product.

- Improper operation by children may cause disorder of the product or electric shock.

Cautions during electrical work or transportation

• Install without tension in the power cable.

- If a tension is imposed, the cable may snap or heat can be generated to cause fire. If the power

cable is damaged, do not replace it by yourself, but call A/S center for replacement.

• Use the exclusive cable for the product. Use the rated power cable with the sufficiently permitted

current.

- It may cause fire or electric shock.

• Be careful during the transportation of the product.

- Do not carry the product of 20kg or heavier. It may cause injury.

• Dispose the packaging material safely.

- The metal packaging material such as nails or wooden packaging material may cause stab or other

injury.

- Rip the plastic or vinyl packaging envelope, etc. and dispose in a safe place to prevent children

from playing with them. If the children play with the vinyl envelopes that are not ripped, it may

cause suffocation.

!

6

TABLE OF CONTENTS

ENGLISH

2 TIPS FOR SAVING EN-

ERGY

3 IMPORTANT SAFETY IN-

STRUCTIONS

7 INSTALLATION COMPO-

SITION

7 Installation composition diagram

7 Cautions during the composition of the

installation

8 PRODUCT COMPOSI-

TION

8 Basically provided parts

8 Sensor (separately sold)

9 ACCESSORY

9 Product composition diagram

10 PRODUCT DIMENSION

11 WIRING DIAGRAM

11 Part positioning diagram

15 INSTALLATION FLOW-

CHART

16 CONTROL KIT INSTAL-

LATION

16 Product installation location veriﬁcation

17 Product installation

18 CONTROL KIT outdoor box installation

19 PIPE TEMPERATURE

SENSOR CONNECTION

20 OUTDOOR UNIT COM-

MUNICATION LINE CON-

NECTION

21 CAUTIONS

22 AHU SENSOR SPECIFI-

CATION

23 AHU SENSOR COVER IN-

STALLATION(FOR OUT-

SIDE INSTALLATION)

24 AHU SENSOR CONNEC-

TION

31 ACP/BACNET GATEWAY

CONNECTION

32 ROTARY SWITCH SET-

TING

35 AHU CONTROLLER SET-

TING

38 COMMUNICATION PCB

SETTING

40 ELECTRICAL CONNEC-

TION WORK

44 Cautions

45 TEST OPERATION

45 Check list before test operation

45 Cautions

46 Wired remote controller

47 Wired remote controller installation

method

48 SELF DIAGNOSIS FUNC-

TION

48 Error display

48 Error display method

49 Error display(AHU)

50 Example of error occurrences

50 Error occurrence order

TABLE OF CONTENTS

INSTALLATION COMPOSITION

7

ENGLISH

SA

MCC

3

5

9

1

4

6

7 -1 7 -2

8 -2

8 -18 -1

2

220 V~, 60 Hz

220-240 V~, 50 Hz

RA EA OA

Cautions during the composition of the installation

- MCC requires facility work by facility company, and carry out a separate discussion before the

installation.

- Temperature or temperature and humidity sensor must be installed in SA/RA to be operated

properly.

Installation components

No.

Category Applied specification

¿

Air handling unit -

¡

Control kit PRCKD21E/41E

¬

Expansion kit unit PATX13A0E/20A0E/25A0E/35A0E/50A0E

√

Outdoor unit MULTI V

ƒ

Pipe temperature sensor IN

Sensor: Ø5, length: 10 m, cable color: Black

≈

Pipe temperature sensor OUT

Sensor: Ø7, length: 10 m, cable color: Red

∆ -1

Temperature and humidity sensor RA

-40 °C ~ 70 °C, RH 0~95 % /

AC 24 V / DC 0~10 V

∆-

2

Temperature and humidity sensor SA

« -1

Return Fan -

«-

2

Supply Fan -

»

MCC MCC

- RA: Return Air

- EA: Exhaust Air

- OA: Outdoor Air

- SA: Supply Air

Power cable

Refrigerant pipe

Pipe temperature sensor

Signal cable

Communication cable

Refrigerant flow(cooling)

Refrigerant flow(heating)

Installation composition diagram

INSTALLATION COMPOSITION

8

PRODUCT COMPOSITION

ENGLISH

Sensor (separately sold)

- To operate the product properly, the following temperature or temperature and humidity sensor

must be separately purchased and installed.

- The separate specification and installation location of the applied sensor can be verified in ‘AHU

sensor specification’ category.

Category Specification

Temperature sensor

- Power: AC 24 V

- Output signal: DC 0~10 V

- Temperature boundary: -50~50 °C

Temperature and humidity

sensor

- Power: AC 24 V

- Output signal: DC 0~10 V

- Temperature boundary: -40~70 °C

- Humidity boundary: 0~95 % RH

CONTROL KIT

Wired remote

controller

Installation bolt/nut

Installation

manual

Owner’s

manual

Model name

è˜äÍêÎê‘ êcòØ

PRCKD21E

- Quantity: 1EA

- Maximum number

of outdoor units

that can be con-

nected : 4EA

Quantity:

1EA

- Number of bolts:

4EA (M10 / 70 mm)

- Number of nuts:

4EA (M10)

Quantity:

1EA

Quantity:

1EA

PRCKD41E

- Quantity: 1EA

- Maximum number

of outdoor units

that can be con-

nected : 8EA

Quantity:

1EA

Basically provided parts

PRODUCT COMPOSITION

ACCESSORY

9

ENGLISH

• PRCKD21E/41E

- ( ) is the quantity applied to PRCKD41E model.

No. Part name Specification

Quantity

No. Part name Specification

Quantity

①

Wired remote controller

- 1

⑪

Controller case 1

②

Door - 1

⑫

Fuse

AC 250 V, 5 A

5

③

Wired remote con-

troller protection box

Polycarbonate, IP65

1

⑬

Relay

AC 250 V, 5 A

4

④

Selection switch ON/OFF 3

⑭

Communication PCB

- 2(4)

⑤

Lamp

Power/SA/RA/

Inspection lamp

4

⑮

Communication

PCB case

2(4)

⑥

Transformer

Input: AC 220 V

Output: AC 24 V

Capacity: 50 VA

1

⑯

Control box 1.6 T 1

⑰

Controller protection box

0.8 T 1

⑱

Adapter

DC 12 V, 3.33 A

1

⑦

Terminal block A 15 A x 1.25 mm

2

⑲

Adapter case - 1

⑧

Terminal block B 20 A x 1.25 mm

2

1

⑳

Poly fuse PCB - 1

⑨

Circuit breaker for

wiring

15 A 1

㉑

Poly fuse PCB

bracket

0.8 T 1

⑩

AHU controller - 1

(PRCKD41E application)

Product composition diagram

ACCESSORY

10

PRODUCT DIMENSION

ENGLISH

BE

4-Ø16 hole

A

FH G F

CD

CAUTION

The cables entering F/G/H hole may be different according to the installer, and use the

flexible pipe and connector that fit the corresponding hole.

PRCKD21E/PRCKD41E Remark

A (mm) 600 Length

B (mm) 750 Height

C (mm) 280 Width

D (mm) 510

AHU locking hole

E (mm) 650

F 4-Ø16 hole Pipe sensor insertion part

G 10-Ø25 hole

Sensor/communication line insertion part

H Ø30 hole Power cable insertion part

Weight

(kg)

Product 43.5 Product weight

Packaging 48 Weight after packaging

!

PRODUCT DIMENSION

WIRING DIAGRAM

11

ENGLISH

AHU Controller part

Terminal block part #1

Terminal block part #2

Safety parts

Communication PCB part #2

Communication PCB part #1

AHU Controller part

Terminal block part #1

Terminal block part #2

Safety parts

Communication PCB part #2

Communication PCB part #1

AHU Controller part

Terminal block part #1

Terminal block part #2

Safety parts

Communication PCB part #2

Communication PCB part #1

• PRCKD41E

CAUTION

The cables entering F/G/H hole may be different according to the installer, and use the

flexible pipe and connector that fit the corresponding hole.

!

Part positioning diagram

WIRING DIAGRAM

12

WIRING DIAGRAM

ENGLISH

- FUSE1 : 250 V 3.15 A

1

ON

ON ON

2345678

17 18 19 20 21 22 23 24 9 10 11 12 13 14 15 16

ON ON

ON

• AHU Controller part

• Communication PCB part(PRCKD21E)

WIRING DIAGRAM

13

ENGLISH

220-240 V~, 50/60 Hz

CABLE : OVER CV 2.5 mm

2

(50VA)

- FUSE1 : 250 V 3.15 A

• Communication PCB part(PRCKD41E)

• Safety parts (transformer, short circuit breaker for wiring)

14

WIRING DIAGRAM

ENGLISH

• Terminal block part #1

• Terminal block part #2

INSTALLATION FLOWCHART

15

ENGLISH

CONTROL KIT installation

Pipe temperature sensor

connection

Outdoor unit communication

line connection

AHU sensor connection

• 2 outdoor units can be connected to

communication PCB 1EA, so be careful

not to have mixed connection of the pipe

temperature sensor and communication

line that are connected to 1 outdoor unit.

• You must install temperature/humidity

sensor to SA duct and RA duct that com-

ply with the specification.

(Specification: -40 °C~70 °C,

RH 0~95 % / AC 24 V / DC 0~10 V)

•

If only temperature sensor is installed to SA/

RA duct, you do not need to set Dip switch.

•

According to the installation site, set the

Dip switch according to the setting method.

• Be careful of the Dip switch setting accord-

ing to whether outdoor unit is connected.

• During the connection of outdoor unit,

make sure to set all rotary switches to be

different.

• After completing CONTROL KIT installa-

tion, make sure to set outdoor unit

address.

AHU Controller setting

Communication PCB

setting

Electrical wiring

Outdoor unit address

setting

Operation inspection

CAUTION

According to the construction site, this order may be changed, and make sure to study

the installation manual for the corresponding work before the work.

!

INSTALLATION FLOWCHART

16

CONTROL KIT INSTALLATION

ENGLISH

Product installation location veriﬁcation

- Verify CONTROL KIT installation location in AHU product.

Installation bolt (4EA)

Installation nut (4EA)

Detail

Installation location

(during product side installation)

4 holes

Installation material

4-Ø12 hole

<AHU>

650 mm

510 mm

- Check the location of the holes at the back of CONTROL KIT and whether there is a material for

installation.

CONTROL KIT INSTALLATION

17

ENGLISH

Product installation

- Verify CONTROL KIT installation location in AHU product.

CAUTION

- Do not install the product by one person. It may cause injury.

- After installation of the product, check if it is fixed properly.

!

18

CONTROL KIT INSTALLATION

ENGLISH

CONTROL KIT outdoor box

installation

Outdoor box installation location verification /

Punching holes

- Verify CONTROL KIT outdoor box installation

location in AHU product and punch the holes.

- Verify the location of the holes at the back of

Outdoor box and if there are installation ma-

terial

Outdoor box / CONTROL KIT installation

- Match the holes punched on the side of AHU

and the holes of outdoor box and fix them

with bolts and nuts (CONTROL KIT enclosed)

and washer(outdoor box enclosed).

- Fix CONTROL KOT inside the installed out-

door box. During the fixing, separate the nut

locked to the bolts inside outdoor box and fix

as follows.

- After completing the installation, verify if it is

composed as follows.

4-Ø12 hole

Nut (4EA)

Bolt (4EA)

Washer

(4EA)

Washer (4EA)

Nut (4EA)

Control Kit

Washer

(4EA)

Reduce the bracket

gap and ﬁx by

tightening

the nuts.

4 holes

Product name

Specification

Quantity(EA)

Location

Washer M10, SUS

4

Outdoor box enclosed

Bolt

M10 X 70, SUS

4

Control Kit

enclosed

Nut M10, SUS

4

Washer M10, SUS

4

CAUTION

• Do not install the product by one per-

son. It may cause injury.

• After installation of the product, check if

the bots and nuts are properly fixed.

•

After installation of the product, adjust the

wire fixing bracket gap at the bottom of

outdoor box to block the wire penetration

space. (Rats, animal, etc. may enter and

damage the electric wires.)

• After installation of the product, verify

the sealed status of AHU and outdoor

box connection part. If there is a defect

in the seal, it may cause leakage.

• If AHU is installed outside, to protect

CONTROL KIT, make sure to install out-

door box.

!

PIPE TEMPERATURE SENSOR CONNECTION

19

ENGLISH

PIPE TEMPERATURE SENSOR CONNECTION

- Check IN/OUT of the pipe temperature sensor connected to EXPANSION KIT.

- Connect flexible pipe and connector (Ø16, supplied from the site) coming from EXPANSION KIT

to CONTROL KIT.

- Classify IN/OUT of pipe temperature sensor and connect to the connectors on communication

PCB.

Flexible pipe and connector: Ø16 (supplied from the site)

Expansion kit (PATX13A0E/

25A0E/35A0E/50A0E)

- Pipe temperature sensor IN :

sensor Ø5, length 10M, cable color Black

- Pipe temperature sensor OUT :

sensor Ø7, length 10M, cable color RED

Pipe temperature sensor IN

Pipe temperature sensor OUT

p@

@CQ@out

p@@@CR@in

Rotary switch #1

EXPANSION KIT #1 EXPANSION KIT #2

Rotary switch #2

p@@@CQ@in

Outdoor unit communication line#2Outdoor unit communication line#1

p@

@CR@out

20

OUTDOOR UNIT COMMUNICATION LINE CONNECTION

ENGLISH

OUTDOOR UNIT COMMUNICATION LINE

CONNECTION

- Communication line connection

• Type: shield cable 2 lines

• Diameter: CV 1.25 mm

2

or more

• Insulator: PVC

• Maximum permitted temperature: 60 °C

• Maximum length possible for communication: 1000 m or less

- The communication connection between outdoor unit and CONTROL KIT shall be connected as

follows.

For details, refer to the wiring diagram for the work.

VQS VQTVQQ VQR

Rotary switch #1

Outdoor unit #1 Outdoor unit #2

Rotary switch #2

p@@@CQ@in

p@@

@CQ@out

p@@

@CR@out

p@@@CR@in

Outdoor unit communication line#2

Outdoor unit communication line#1

CONTROL KIT inside

CAUTION

• All of EXPANSION KIT #1, outdoor unit #1, outdoor unit communication cable #1, and pipe

temperature sensor IN/OUT #1 shall be connected to the same ‘A’ part.

• For detail connection of EXPANSION KIT, refer to EXPANSION KIT manual.

!

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LG PRCKD21E.ENCXUAE Installation guide

LG PRCKD21E.ENCXUAE Installation guide

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