LG L2-C366BA0 Manual de usuario

Air Conditioner

INSTALLATION MANUAL

website http://www.lgservice.com

e-mail http://www.lgeservice.com/techsup.html

IMPORTANT

• Please read this installation manual completely before

installing the product.

• When the power cord is damaged, replacement work shall

be performed by authorized personnel only.

• Installation work must be performed in accordance with

the national wiring standards by authorized personnel

only.

2Multi Type Ceiling Duct Air Conditioner

Multi Type Ceiling Duct Air Conditioner Installation Manual

TABLE OF CONTENTS

Installation Parts Provided .........................................3

Safety Precautions ......................................................4

Installation of indoor, outdoor unit............................7

Connecting Pipes to the Indoor Unit.......................16

Connecting Pipes to the Outdoor Unit....................18

Checking the Drainage and Forming

the Piping...................................................................18

Connection of the Cable...........................................19

Air Purging of the Connecting Pipes and

the Indoor Unit...........................................................21

Group Control............................................................22

Two Thermistor System ............................................22

E.S.P (External Static Pressure) Setting.................23

How to set E.S.P?......................................................24

❏Level gauge

❏Screw driver

❏Electric drill

❏Hole core drill (ø50mm)

❏Horizontal meter

❏Flaring tool set

❏Specified torque wrenches

1.8kg.m, 4.2kg.m, 5.5kg.m, 6.6kg.m

(different depending on model No.)

❏Spanner .................Half union

❏A glass of water

❏Screw driver

❏Hexagonal wrench(4mm)

❏Gas-leak detector

❏Vacuum pump

❏Gauge manifold

❏Owner's manual

❏Thermometer

❏Holder Remote Control

Installation Requirements Required Tools

Installation Parts Provided

Installation Manual 3

Installation Parts Provided

Standard Type

Air filters

(Optional)

Air outlet vents

Air intake vents

Remote Controller

(Side)

(Rear)

Air intake

vents

Air outlet vents

Piping

Drain hose

Control cover

Connecting wire

Indoor Unit

Outdoor Unit

4Multi Type Ceiling Duct Air Conditioner

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.

WARNING

CAUTION

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage.

WARNING

Be sure not to do.

Be sure to follow the instruction.

Safety Precautions

Do not use a defective or underrated 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 electrician or an

Authorized Service Center.

•Do not disassemble or repair the product.

There is risk of fire or electric shock.

Always ground the product.

•There is risk of fire or electric shock.

Install the panel and the cover of control box

securely.

•There is risk of fire or electric shock.

Installation Manual 5

Safety Precautions

Always intstall a dedicated circuit and

breaker.

•Improper wiring or installation may cause fire

or electric shock.

Use the rated breaker or fuse correctly.

•There is risk of fire or electric shock.

Do not modify or extend the power cable.

•There is risk of fire or electric shock.

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 the dealer or

an Authorized 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

conditioner could fall with it,

causing property damage, product

failure and personal injury.

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.

Do not store or use

flammable gas or

combustibles near the

prodcut.

•There is risk of fire or failure

of product.

Gasolin

6Multi Type Ceiling Duct Air Conditioner

Safety Precautions

CAUTION

Always check for gas (refrigerant) 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 properly.

•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 outdoor unit could

damage the neighborhoods.

•It may cause a problem for your neighbors.

90°

Installation Manual 7

Installation of Indoor, Outdoor Unit

Selection of the best location

1) Indoor unit

Select location

Install the air conditioner in the location that satisfies

the following 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 beleveled.

•The place shall allow easy water drainage.(Suitable

dimension “H”is necessary to get a slope to drain

as figure.)

•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

2) Outdoor unit

•If an awning is built over the unit to prevent

direct sunlight or rain exposure, be careful that

heat radiation from the condenser is not

restricted.

•There should not be any animals or plants

which could be affected by hot air discharged.

•Ensure the spaces indicated by arrows from

the wall, ceiling, fence or other obstacles.

3) Piping length and the elevation

Indoor unit

Outdoor unit

600600

Top view

(unit: mm)

Front view

Front

Inspection hole

(600X600)

Control box

1000

More than

90cm

More than 90cm

More than 120cm

More than 90cm

More than

90cm

Fence or

obstacles

Fence or

obstacles

Fence or

obstacles

•Capacity is based on standard length and

maximun allowance length is on the basis of

reliability.

•Improper refrigerant charge may result in

abnormal cycle.

7.5

Gas

1/2

5/8

Liquid

1/4

*Additional

refrigerant

(g/m)

Standard

Length

(m)

Max.

Elevation

B (m)

Max.

Length

A (m)

Pipe Size

(Diameter: Ø)

Model

L2-C366BA0

L2-C486BA0

8Multi Type Ceiling Duct Air Conditioner

Installation of Indoor, Outdoor Unit

Indoor unit installation

■Installation of Unit

Install the unit above the ceiling correctly.

•Apply a joint-canvas between the unit and

duct to absorb unnecessary vibration.

•Apply a filter Accessory at air return hole.

•Install the unit leaning to a drainage hole

side as a figure for easy water drainage.

•A place where the unit will be leveled and

that can support the weight of the unit.

•A place where the unit can withstand its

vibration.

•A place where service can be easily

performed.

CASE 1

POSITION OF SUSPENSION BOLT

CASE 2

POSITION OF CONSOLE BOLT

(Unit:mm)

Drainage hole

M10 Nut

M10 SP. washer

M10 washer

X 4

X 4 (Local

supply)

X 4

M10 Nut

M10 SP. washer

M10 washer

X 4

X 4 (Local

supply)

X 4

1-3 mm D

(G)

18K BTU/h 948 880 355 45.5 450 30 87 750 163

24K BTU/h

Dimension

Capacity

ABCDE F(G)HI

Installation Manual 9

Installation of Indoor, Outdoor Unit

•Select and mark the position for fixing bolts.

•Drill the hole for set anchor on the face of

ceiling.

•Insert the set anchor and washer onto the

suspension bolts for locking the suspension

bolts on the ceiling.

•Mount the suspension bolts to the set

anchor firmly.

•Secure the installation plates onto the

suspension bolts (adjust level roughly)

using nuts, washers and spring washers.

1 Set anchor

Old building New building

2 Plate washer

3 Spring washer

4 Nut

5 Suspension

bolts

•Local supply

Set anchor

Plate washer - M10

Spring washer - M10

Nut - W3/8 or M10

Suspension bolt - W3/8 or M10

CAUTION: Tighten the nut and

bolt to prevent unit falling

10 Multi Type Ceiling Duct Air Conditioner

Installation of Indoor, Outdoor Unit

Ceiling

CAUTION

1~3mm

Drainage hole

U-Trap

A ≥70mm

B ≥2C

C ≥2 x SP

SP = External Pressure

(mmAq)

Ex) External Pressure

= 10mmAq

A ≥70mm

B ≥40mm

C ≥20mm

Make sure to be closed.

Unit

Drainage pipe

(Local supply)

Thermal insulator

(Local supply)

Drainage hole

CAUTION FOR GRADIENT OF

UNIT AND DRAIN PIPING

Lay the drain hose with a downward

inclination so water will drain out.

Front of view

•Always lay the drain with downward

inclination (1/50 to 1/100).

Prevent any upward flow or reverse flow

in any part.

•5mm or thicker formed thermal insulator

shall always be provided for the drain

pipe.

•Install the P-Trap (or U-Trap) to prevent

a water leakage caused by the blocking

of intake air filter.

Applied U-Trap Dimension

1. Install declination of the indoor unit is very important for the drain of the duct type air

conditioner.

2. Minimum thickness of the insulation for the connecting pipe shall be 5mm.

•The unit must be horizontal or declined to the drain hose connected when finished

installation.

CORRECT

INCORRECT

•Upward routing not

allowed

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