LG UU18W User manual

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.

INSTALLATION MANUAL

AIR

CONDITIONER

TYPE : Standard inverter

www.lg.com

MFL69190205

Rev.01_051719

РУССКИЙ ЯЗЫК

УКРАÏНСЬКА

ҚАЗАҚ ТІЛІ

беларуская мова

O‘ZBEK TILI

ENGLISH

2Air Conditioner

3 SAFETY PRECAUTIONS

6 INSTALLATION OF OUTDOOR UNIT

9 Night Silent Operation setting

10 WIRING CONNECTION

10 Electrical Wiring

10 Connecting Cables between Indoor Unit and Outdoor Unit

12 Connecting the cable to Outdoor Unit

13 CONNECTING PIPES

13 Preparation of Piping

14 Connecting the pipes to the Outdoor unit

16 Forming the piping

17 LEAKAGE TEST AND EVACUATION

17 Preparation

17 Leakage test

18 Evacuation

19 TEST RUNNING

21 FUNCTION

21 Forced Cooling Operation

22 SELF-DIAGNOSIS FUNCTION

22 Error Indicator (Outdoor)

23 INSTALLATION GUIDE AT THE SEASIDE

TABLE OF CONTENTS

Table of contents

To prevent the injury of the user or other people and property damage, the following instructions

must be followed.

nBe sure to read before installing the air conditioner.

nBe sure to observe the cautions specified here as they include important items related to safety.

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

classified by the following indications.

nThe meanings of the 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 to properties only.

WARNING

Be sure not to do.

Be sure to follow the instruction.

Safety Precautions

Installation Manual 3

Safety Precautions

ENGLISH

Installation

• Always perform grounding.

- Otherwise, it may cause electrical shock.

• Don’t use a power cord, a plug or a loose socket which is damaged.

- Otherwise, it may cause a fire or electrical shock.

• For installation of the product, always contact the service center or a professional installation

agency.

- Otherwise, it may cause a fire, electrical shock, explosion or injury.

• Securely attach the electrical part cover to the indoor unit and the service panel to the outdoor

unit.

- If the electrical part cover of the indoor unit and the service panel of the outdoor unit are not

attached securely, it could result in a fire or electric shock due to dust, water, etc.

• Always install an air leakage breaker and a dedicated switching board.

- No installation may cause a fire and electrical shock.

• Do not keep or use flammable gases or combustibles near the air conditioner.

- Otherwise, it may cause a fire or the failure of product.

• Ensure that an installation frame of the outdoor unit is not damaged due to use for a long time.

- It may cause injury or an accident.

• Do not disassemble or repair the product randomly.

- It will cause a fire or electrical shock.

• Use a vacuum pump or Inert (nitrogen) gas when doing leakage test or air purge. Do not

compress air or Oxygen and do not use Flammable gases. Otherwise, it may cause fire or

explosion.

WARNING

CAUTION

4Air Conditioner

Safety Precautions

- There is the risk of death, injury, fire or explosion.

• Do not install the product at a place that there is concern of falling down.

- Otherwise, it may result in personal injury.

• Use caution when unpacking and installing.

- Sharp edges may cause injury.

Operation

• Do not share the outlet with other appliances.

- It will cause an electric shock or a fire due to heat generation.

• Do not use the damaged power cord.

- Otherwise, it may cause a fire or electrical shock.

• Do not modify or extend the power cord randomly.

- Otherwise, it may cause a fire or electrical shock.

• Take care so that the power cord may not be pulled during operation.

- Otherwise, it may cause a fire or electrical shock.

• Unplug the unit if strange sounds, smell or smoke comes from it.

- Otherwise, it may cause electrical shock or a fire.

• Keep the flames away.

- Otherwise, it may cause a fire.

• Take the power plug out if necessary, holding the head of the plug and do not touch it with wet

hands.

- Otherwise, it may cause a fire or electrical shock.

• Do not use the power cord near the heating tools.

- Otherwise, it may cause a fire and electrical shock.

• Do not open the suction inlet of the indoor/outdoor unit during operation.

- Otherwise, it may electrical shock and failure.

• Do not allow water to run into electrical parts.

- Otherwise, it may cause the failure of machine or electrical shock.

• Hold the plug by the head when taking it out.

- It may cause electric shock and damage.

• Never touch the metal parts of the unit when removing the filter.

- They are sharp and may cause injury.

• Do not step on the indoor/outdoor unit and do not put anything on it.

- It may cause an injury through dropping of the unit or falling down.

• Do not place a heavy object on the power cord.

- Otherwise, it may cause a fire or electrical shock.

• When the product is submerged into water, always contact the service center.

- Otherwise, it may cause a fire or electrical shock.

• Take care so that children may not step on the outdoor unit.

- Otherwise, children may be seriously injured due to falling down.

Installation Manual 5

Safety Precautions

ENGLISH

CAUTION

Installation

• Install the drain hose to ensure that drain can be securely done.

- Otherwise, it may cause water leakage.

• Install the product so that the noise or hot wind from the outdoor unit may not cause any damage

to the neighbors.

- Otherwise, it may cause dispute with the neighbors.

• Always inspect gas leakage after the installation and repair of product.

- Otherwise, it may cause the failure of product.

• Keep level parallel in installing the product.

- Otherwise, it may cause vibration or water leakage.

• Means for disconnection must be incorporated in the fixed wiring in accordance with the wiring

rules.

Operation

• Avoid excessive cooling and perform ventilation sometimes.

- Otherwise, it may do harm to your health.

• Use a soft cloth to clean. Do not use wax, thinner or a strong detergent.

- The appearance of the air conditioner may deteriorate, change color or develop surface flaws.

• Do not use an appliance for special purposes such as preserving animals vegetables, precision

machine or art articles.

- Otherwise, it may damage your properties.

• Do not place obstacles around the flow inlet or outlet.

- Otherwise, it may cause the failure of appliance or an accident.

1. Installation Places

• If an awning is built over the unit to prevent

direct sunlight or rain exposure, make sure

that heat radiation from the condenser is not

restricted.

• Ensure that the spaces indicated by arrows

around front, back and side of the unit.

• Do not place animals and plants in the path of

the warm air.

• Take the air conditioner weight into account

and select a place where noise and vibration

are minimum.

• Select a place so that the warm air and noise

from the air conditioner do not disturb

neighbors.

More than

300 mm

Fence or

obstacles

More than 700 mm

More than 600 mm

More than

300 mm

More than

300 mm

Sunroof

Installation of Outdoor Unit

2. Piping length and the elevation

nSingle Operation

If installed tube is shorter than 7.5 m, additional charging is not necessary.

Additional Refrigerant = (A-7.5)xAdditional refrigerant (g)

6Air Conditioner

Outdoor unit

Indoor unit

Outdoor unit

Indoor unit

Unit : mm

Model Capacity

Pipe Size

mm(inch) Length A(m) Elevation B(m) Additional

refrigerant

(g/m)

Gas Liquid Standard Max. Standard Max.

UU18W 5 kW Ø 12.7(1/2) Ø 6.35(1/4) 7.5 40 5 30 20

UU24W 7 kW Ø 15.88(5/8) Ø 9.52(3/8) 7.5 50 5 30 40

UU30W 8 kW Ø 15.88(5/8) Ø 9.52(3/8) 7.5 50 5 30 40

UU36W/UU37W 10 kW Ø 15.88(5/8) Ø 9.52(3/8) 7.5 50 5 30 40

UU42W/UU43W 12.5 kW Ø 15.88(5/8) Ø 9.52(3/8) 7.5 75 5 30 40

UU48W/UU49W 14 kW Ø 15.88(5/8) Ø 9.52(3/8) 7.5 75 5 30 40

UU60W/UU61W 15 kW Ø 15.88(5/8) Ø 9.52(3/8) 7.5 75 5 30 40

Installation of Outdoor Unit

• When installing the branch pipe, direction and angle of installation is not limited.

• Take care so that burrs and foreign material may not enter into the cutting surface when

connecting.

• Connect remaining those by cutting or direct insertion to the diameter of pipe.

nSynchro Operation

Install the branch pipe so that pipe length and difference between high and low will not exceed

below Spec.

[Unit : m]

Branch

Remote

Controller

Pipe Length & Height

Total(L1+L2+L3+L4+L5)

Main Pipe(L1)

Branch Pipe (L2+L3+L4+L5)

Each

Indoor-Outdoor (H1)

Indoor-Indoor (H2)

(L1+L2),(L1+L3),(L1+L4),(L1+L5)

Spec(MAX.)

Installation Manual 7

ENGLISH

nRefrigerant Additional Charging Method

For additional charging method, see below table.

Indoor Unit Refrigerant Additional charging (g)

Duo

Trio

Quartet

Refrigerant = (L1-b)xB+(L2+L3)xC

Refrigerant = (L1-b)xB+(L2+L3+L4)xC

Refrigerant = (L1-b)xB+(L2+L3+L4+L5)xC

(g/m)

Pipe Size

mm(inch)

Ø 6.35(1/4)

Ø 9.52(3/8)

(m)

Model

UU42W/UU43W

UU48W/UU49W

UU60W/UU61W

(g/m)

7.5 40

b : Rated performance for refrigerant line length.

C : Additional charging Refrigerant of Branch Liquid Pipe.

B : Additional charging Refrigerant of Main Liquid Pipe.

NOTICE

CAUTION

• Capacity is based on standard length and maximum allowance length is on the basis of

reliability.

• Improper refrigerant charge may result in abnormal cycle.

Outdoor Unit PCB Setting Procedure For Simultaneous Operation System

** When using synchro operation,

- Do not use wireless remote controller.

- Use only one wired remote controller in the indoor units.

- Use Simple central controller "PQCSZ250S0" only.

NOTICE

8Air Conditioner

Installation of Outdoor Unit

3. Synchro Combination table

1. SW01N (PIP SW2) Setting

Set the SW01N (PIP SW2) as below Table (Ⓐ)

2. Auto Addressing Method

Addressing work assigns address to each indoor unit. When firstly installing product or replacing

the indoor unit PCB. Auto Addressing work should be done for simultaneous operation.

hWork procedure

1) Set SW01N (PIP SW2) correctly.

2) Turn on main power.

3) Press the SW02N (SW01B) for about 3 seconds within 3 minutes After main power on.(Ⓑ)

SW01B LED01H

DIP SW2

BMAIN PCBMAIN PCB

UU42W/48W/60W UU43W/49W/61W

LED01G

LED02G

SW02N

SW01N

LED01M

LED02M

Possible combination of indoor units

Synchro

Duo Trio Quartet

IDU : INDOOR UNIT

ODU : OUTDOOR UNIT

BD : BRANACH

DISTRIBUTOR UNIT

REMO : WIRED

REMOTE

CONTROLLER

ODU

IDU IDU

REMO

ODU

IDU IDU IDU

REMO

IDU IDU IDU IDU

ODU

REMO

MODEL

Cassette

Duct

Ceiling

Suspended

Cassette

Duct

Ceiling

Suspended

Cassette

Duct

Ceiling

Suspended

UU42W/UU43W

CT24 NP2R0 CB24 NH2R0 CV24 NJ2R0 CT18 NQ2R0 CB18 NH2R0 CV18 NJ2R0 CT12 NR2R0 - -

UU48W/UU49W

CT24 NP2R0 CB24 NH2R0 CV24 NJ2R0 CT18 NQ2R0 CB18 NH2R0 CV18 NJ2R0 CT12 NR2R0 - -

UU60W/UU61W

UT30W NP2R0

UB30 NG2R0 UV30 NJ2R0 CT18 NQ2R0 CB18 NH2R0 CV18 NJ2R0 CT12 NR2R0 - -

Applied

Accessi

ries

Bdunit PMUB11A PMUB111A PMUB1111A

Simple central

controller** PQCSZ250S0

Installation Manual 9

Installation of Outdoor Unit

ENGLISH

4) After step 3), the LED01M/G (red LED) and

LED02M/G (green LED) rapidly flickers.

When Addressing work is done, green LED is

off, else LED (LED01M/G) stops flickering

and lights continuously. Address of indoor

unit is indicated on the wired remote control

display window. (CH01, CH02, CH03, CH04)

5) Press button to turn on the indoor.

6) If you fail to perform the Addressing work,

repeat step 2)~5).

Night Silent Operation setting

1. Open the Side panel or Top Cover of outdoor unit.

2. Set the SW01N (PIP SW2).

3. Close the Side panel or Top Cover.

SW01N (PIP SW2) Indoor Unit No.

2(Duo)

1(Single)

: Default

3(Trio)

4(Quartet)

Table SW01N (PIP SW2) Setting

DIP SW2

SW01N

UU18W

UU24W

UU30W

UU36W

UU42W

UU48W

UU60W

UU37W

UU43W

UU49W

UU61W

UU18W

UU24W

UU30W

UU36W

UU42W

UU48W

UU60W

UU37W

UU43W

UU49W

UU61W

Wiring Connection

Outdoor

Indoor

Main

power source Switch box

ELCB

Perform the electrical wiring work according to the electrical wiring connection.

• All wiring must comply with local requirements.

•

Select a power source that is capable of

supplying the current required by the air

conditioner.

• Use a recognized ELCB(Electric Leakage

Circuit Breaker) between the power source and

the unit. A disconnection device to adequately

disconnect all supply lines must be fitted.

• Model of circuit breaker recommended by

authorized personnel only

10 Air Conditioner

2(N)

1(L)SCN-REMO

CN-REMO

Terminals on the indoor unit 4

2(N)

1(L)S

Terminals on the indoor unit 3

2(N)

1(L)S

Terminals on the indoor unit 2

2(N)

1(L)M

Terminals on the indoor unit 1

Terminals on the

Outdoor unit

2(N)

1(L)

Remote

Controller

CN-REMO

2(N)

1(L)

2(N)

1(L)

2(N)

1(L)

2(N)

1(L)

• When using simultaneous Operation System,

use only one wired remote controller

in the indoor units

Simultaneous

Operation Unit 2, 3, 4

Main Unit1

POWER INPUT

(220 V-240 V~)

2(N)

1(L)

CSTDUCT, CVT

•

Connect the wires to the terminals on the control board individually according to the outdoor unit connection.

• Ensure that the color of the wires of outdoor unit and the terminal No. are the same as those of

indoor unit respectively

Connecting Cables between Indoor Unit and Outdoor Unit

Model Phase(Ø ) ELCB

UU18W

1 20 A

UU24W

1 30 A

UU30W

1 30 A

UU36W

1 40 A

UU42W/UU48W/UU60W

1 40 A

UU37W

3 20 A

UU43W/UU49W/UU61W

3 20 A

1(L) 2(N) 1(L) 2(N) 31(L) 2(N) 1(L) 2(N) 3 RS TN 1(L) 2(N) 3

POWER SUPPLY TO INDOOR UNITPOWER SUPPLY TO INDOOR UNIT POWER SUPPLY TO INDOOR UNIT

UU18W UU24W/30W/36W/42W/48W/60W UU37W/43W/49W/61W

Electrical Wiring

Wiring Connection

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