LG MULTI V CE Series User manual

System

Heat Pump Indoor Unit

INSTALLATION MANUAL

MODELS: CE/CF Series

Type: Floor Standing

Concealed Floor Standing

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.

ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH

2Indoor Unit

Floor Standing Concealed Floor Standing Type Indoor Unit Installation Manual

TABLE OF CONTENTS

❏Four type "A" screws

❏Connecting cable

❏Pipes: Gas side

Liquid side

(Refer to Product Data)

❏Insulation materials

❏Additional drain pipe

❏Level gauge

❏Screw driver

❏Electric drill

❏Hole core drill

❏Flaring tool set

❏Specified torque wrenches

(different depending on model No.)

❏Spanner .......Half union

❏A glass of water

❏Screw driver

❏Hexagonal wrench

❏Gas-leak detector

❏Vacuum pump

❏Gauge manifold

❏Owner's manual

❏Thermometer

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

Introduction .............................6

Installation

Selection the best location ....7

Preparation of Piping .............9

Drain piping work.................11

How to connect wirings .......12

Wiring Connection ...............12

Two Thermistor system .......15

Installation Requirements Required Parts Required Tools

Installation Manual 3

ENGLISH

Safety Precautions

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

■Be sure to read before installing the air conditioner.

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

■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 to properties only.

Be sure not to do.

Be sure to follow the instruction.

■Installation

Do not use a defective or under-

rated circuit breaker. Use this

appliance on a dedicated circuit.

• There is risk of fire or electric shock.

For electrical work, contact the

dealer, seller, a qualified electri-

cian, or an Authorized Service

Center.

• Do not disassemble or repair the

product. There is risk of fire or elec-

tric shock.

Always ground the product.

•Thereisriskoffireorelectricshock.

Install the panel and the cover

of control box securely.

• There is risk of fire or electric shock.

Always install a dedicated cir-

cuit and breaker.

• Improper wiring or installation may

cause fire or electric shock.

Use the correctly rated breaker

or fuse.

•Thereisriskoffireorelectricshock.

4Indoor Unit

Safety Precautions

■Operation

Do not modify or extend the

power cable.

•Thereisriskoffireorelectricshock.

Do not let the air conditioner

run for a long time when the

humidity is very high and a door

or a window is left open.

• Moisture may condense and wet or

damage furniture.

Be cautious when unpacking

and installing the product.

• Sharp edges could cause injury. Be

especially careful of the case edges

and the fins on the condenser and

evaporator.

For installation, always contact

thedealeroranAuthorized

Service Center.

• There is risk of fire, electric shock,

explosion, or injury.

Do not install the product on a

defective installation stand.

• It may cause injury, accident, or

damage to the product.

Be sure the installation area

does not deteriorate with age.

• If the base collapses, the air condi-

tioner could fall with it, causing prop-

erty damage, product failure, and

personal injury.

Do not store or use flammable gas or combustibles near the product.

• There is risk of fire or failure of product.

Gasolin

ENGLISH

Installation Manual 5

Safety Precautions

Alwayscheckforgas(refriger-

ant) leakage after installation or

repair of product.

• Low refrigerant levels may cause

failure of product.

Install the drain hose to ensure

that water is drained away prop-

erly.

• A bad connection may cause water

leakage.

Keep level even when installing

the product.

• To avoid vibration or water leakage.

Do not install the product where

the noise or hot air from the out-

door unit could damage the

neighborhoods.

• It may cause a problem for your

neighbors.

Use two or more people to lift

and transport the product.

• Avoid personal injury.

Do not install the product where

it will be exposed to sea wind

(saltspray)directly.

• It may cause corrosion on the product.

Corrosion, particularly on the con-

denser and evaporator fins, could

cause product malfunction or inefficient

operation.

90˚

■Installation

6Indoor Unit

Introduction

Remote Controller

Air Outlet

Control panel

Air Filter

Air Inlet

Air filter

(At Air Inlet)

This symbol alerts you to the risk of electric shock.

This symbol alerts you to hazards that could cause harm to the

air conditioner.

This symbol indicates special notes.

NOTICE

SymbolsUsedinthisManual

Features

[CEA/CFA Type]

[CEU/CFU Type]

ENGLISH

Installation Manual 7

Installation

Indoor unit

Install the air conditioner in the location that satisfies the fol-

lowing conditions.

•The place shall easily bear a load exceeding four times the

indoor unit’s weight.

•The place shall be able to inspect the unit as the figure.

•The place where the unit shall be leveled.

•The place shall easily connect with the outdoor unit.

•The place where the unit is not affected by an electrical

noise.

•The place where air circulation in the room will be good .

•There should not be any heat source or steam near the unit

Service space

Select an installation site where the following conditions are

satisfied and that meets with your customer's approval.

•Where the floor is strong enough to bear the indoor unit

weight.

•Where the floor is not significantly inclined.

•Where nothing blocks the air passage.

•Where condensate can be properly drained.

•Where sufficient clearance for installation and maintenance

can be ensured.

•Where there is no possibility of flammable gas leakage.

•Where optimum air distribution can be ensured.

•Where piping between indoor and outdoor units is possible

within the allowable limit (Refer to the installation manual of

the outdoor unit.)

•Keep the indoor and outdoor unit, power cable and trans-

mission wiring, at least 1m from TVs and radios, to prevent

distorted pictures and static.(Depending on the type and

source of the electrical waves, static may be heard even

when more than 1 m away.)

Selection of the best location

654

80 or more

B or more

Maintenance area

Window

A or more

20 or

100 or

more 100 or

175 or

150 or

Front side

Base

Air flow

direction

Air inlet

direction

1000 or

Window

Name Dran

hose

Level adjustment

screw

Quantity

Shape

Insulation for

fitting Clamp [Other]

1 each.

(1) For gas pipe

(2) For liquid pipe

8 pcs.1 EA 4 •Operation

manual

•Installation

manual

[IMPORTANT]

Leave sufficient clearance

for air inlet and maintenance.

Model A B

CEU Type 788 1080

CFU Type 1066 1358

(Length: mm)

Accessories

Check the following accessories are included with

your unit.

8Indoor Unit8Indoor Unit

Installation

Bolt pitch

(Unit:mm)

CEA, CEU 858

CFA, CFU 1136

Model

198

270

(1)

(2)

(3)

How to open/close front panel

•Positioning of holes for fastening to the wall

•How to open/close the front panel

(1) Open the lid of control panel(Both left and right)

(2) Remove screws(Both left and right)

(3) Lift the front panel of the unit

•To close, perform the procedure in opposite

order.

1. Use the installationmount for installation. Check

whether the wall is strong enough to bear the

weight of the unit or not. if there is a risk, reinforce

the wall before installing the unit.

2. The unit requires a minimum 100 mm clearance on

the underside for air intake. Also, ensure the unit is

level when installed so that drainage flows smooth-

ly. If inclined, water can leak.

3. By a state of the wall, operating sound may

become bigger.

Installation Manual 9

Installation

ENGLISH

Preparation of Piping

1. Cut the pipes and the cable.

■Use the accessory piping kit or the pipes purchased

locally.

■Measure the distance between the indoor and the out-

door unit.

■Cut the pipes a little longer than measured distance.

■Cut the cable 1.5m longer than the pipe length.

2. Burrs removal

■Completely remove all burrs from the cut cross section

of pipe/tube.

■Put the end of the copper tube/pipe to downward direc-

tion as you remove burrs in order to avoid to let burrs

drop in the tubing.

3. Flaring work

■Carry out flaring work using flaring tool as shown below.

Firmly hold copper tube in a bar(or die) as indicated

dimension in the table above.

4. Check

■Compare the flared work with figure below.

■If flare is noted to be defective, cut off the flared section

and do flaring work again.

Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure.

Pipe " A "

Gas Liquid Gas

Liquid

<5.6(19,100) 1/2" 1/4" 0.5~0.8 0~0.5

<16.0(54,600) 5/8" 3/8" 0.8~1.0 0.5~0.8

<22.4(76,400) 3/4" 3/8" 1.0~1.3 0.5~0.8

Indoor unit

[kW(Btu/h]

Copper

tube

90°Slanted Uneven Rough

Pipe

Reamer

Point down

Bar

Copper pipe

Clamp handle Red arrow mark

Cone

Yoke

Handle

Bar

"A"

Inclined

Inside is shining without scratches.

Smooth all round

Even length

all round

Surface

damaged

Cracked Uneven

thickness

= Improper flaring =

10 Indoor Unit

Installation

1. Remove the cap and turn the valve counter clockwise with the hexagon wrench.

2. Turn it until the shaft stops.

Do not apply excessive force to the shutoff valve. Doing so may break the valve body, as the valve is not a

backseat type. Always use the special tool.

3. Make sure to tighten the cap securely.

1. Remove the cap and turn the valve clockwise with the hexagon wrench.

2. Securely tighten the valve until the shaft contacts the main body seal.

3. Make sure to tighten the cap securely.

* For the tightening torque, refer to the table on the below.

Precautions when connecting pipes

•See the following table for flare part machining dimensions.

•When connecting the flare nuts, apply refrigerant oil to the inside and outside of the flares and turn them three

or four times at first. (Use ester oil or ether oil.)

•See the following table for tightening torque.(Applying too much torque may cause the flares to crack.)

•After all the piping has been connected, use nitrogen to perform a gas leak check.

Tightening torque

CAUTION

•Always use a charge hose for service port connection.

•After tightening the cap, check that no refrigerant leaks are

present.

•When loosening a flare nut, always use two wrenches in

combination, When connecting the piping, always use a spanner

and torque wrench in combination to tighten the flare nut.

•When connecting a flare nut, coat the flare(inner and outer faces)

with oil for R410A(PVE) and hand tighten the nut 3 to 4 turns as

the initial tightening.

Opening shutoff valve

Closing shutoff valve

FLARE SHAPE and FLARE NUT TIGHTENING TORQUE

Shutoff

valve size

Ø6.4

Ø9.5

Ø12.7

Ø15.9

Ø22.2

Ø25.4

13.5-16.5

18-22

14-17

33-39

50-60

62-75

23-27

13.5-16.5

5.4-6.6 Hexagonal

wrench 4mm

Hexagonal

wrench 6mm

Hexagonal

wrench 10mm

8.1-9.9

27-33 36-44

11.5-13.9

22-28-

Tightening torque N-m(Turn clockwise to close)

Shaft(valve body)

Gas line piping attached to unit

Cap(Valve lid) Service port Flare nut

90°±2

45°

±2

R=0.4~0.8

pipe size tightening torque(Ncm) A(mm) flare shape

Ø6.35 1400~1600 8.7~9.1

Ø9.5 3270-3990 12.8-13.2

Ø12.7 4950-6030 16.2-16.6

Ø15.9 6180-7540 19.3-19.7

Union

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