2024年10月5日发(作者：字虹星)

ENGLISH

ESPAÑOL

INSTALLATION MANUAL

AIR CONDITIONER

• 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.

P/NO : MFL40910608

Installation

Requirements

3

Installation of Indoor,

.6

The indoor unit

9

Remote controller

24

25

Connecting Pipes to

the 27

Installation to

29

Indoor unit drain

30

• Pipes:Gas side

Liquid side

• Insulated drain hose

• Additional Drain hose

Inner Dia

32mm

25mm

• Additional drain pipe

(Convertible type)

(15.5mm)

• Flaring Tools set

• Torque Wrenches

• Hexagonal Wrench (4mm, 5mm)

• Gas-leak detector

Required PartsRequired Tools

• Connecting cable

• Four Type "A" Screw

• Hanging Bolt

(W 3/8 or M10 length 650mm)

• Level

• Screw driver

• Electric drill

• Hole core drill (ø70mm)

35

•

Owner’s Manual

• Thermometer

37

Installation guide at

.42

2Air Conditioner

Safety Precautions

Safety Precautions

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

must be followed.

IBe sure to read before installing the air conditioner.

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

IIncorrect operation due to ignoring instruction will cause harm or seriousness is

classified by the following indications.

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage to properties only.

IThe meanings of the symbols used in this manual are as shown below.

ENGLISH

Be sure not to do.

Be sure to follow the instruction.

IInstallation

Always perform ’t use a power cord,a

plug or a loose socket which

is damaged.

• Otherwise, it may cause a fire

or electrical shock.

Always install an air leakage

breaker and a dedicated

switching board.

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.

Do not keep or use flammable

gases or combustibles near

the air conditioner.

• Otherwise, it may cause a fire

or the failure of product.

• Otherwise, it may cause

electrical shock.

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• No installation may cause a fire

and electrical 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.

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.

Installation Manual 3

Safety Precautions

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.

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.

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

■Operation

Do not share the outlet with

other appliances.

• It will cause an electric shock

or a fire due to heat

generation.

Take care so that the power

cord may not be pulled

during operation.

• Otherwise, it may cause a fire

or electrical shock.

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 allow water to run

into electrical parts.

Do not use the damaged

power cord.

• 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.

Do not use the power cord

near the heating tools.

Do not modify or extend the

power cord randomly.

• Otherwise, it may cause a fire

or electrical shock.

Keep the flames away.

• Otherwise, it may cause a fire.

Do not open the suction

inlet of the indoor/outdoor

unit during operation.

• Otherwise, it may electrical

shock and failure.

Never touch the metal parts

of the unit when removing

the filter.

• They are sharp and may

cause injury.

• Otherwise, it may cause a fire

and electrical shock.

Hold the plug by the head

when taking it out.

• Otherwise, it may cause the• It may cause electric shock

failure of machine or electricaland damage.

shock.

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.

When the product is submerged into water,

always contact the service center.

• Otherwise, it may cause a fire or electrical

shock.

4Air Conditioner

Do not place a heavy object on the power

cord.

• 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.

Safety Precautions

IInstallation

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.

Keep level parallel in installing the product.

• Otherwise, it may cause vibration or water

leakage.

ENGLISH

Always inspect gas leakage after the

installation and repair of product.

• Otherwise, it may cause the failure of product.

IOperation

Avoid excessive cooling and perform

ventilation sometimes.

• Otherwise, it may do harm to your health.

Use a soft cloth to not use wax,

thinner,or a strong detergent.

• The appearance of the air conditioner may

deteriorate, change color, or develop surface

flaws.

Do not place obstacles around the flow inlet

or outlet.

• Otherwise, it may cause the failure of appliance

or an accident.

Do not use an appliance for special purposes

such as preserving animals vegetables,

precision machine,or art articles.

• Otherwise, it may damage your properties.

Installation Manual 5

Installation of Indoor, Outdoor Unit

Installation of Indoor,Outdoor Unit

Selection of the best location

unit

Cassette type

• There should not be any heat source or steam

near the unit.

• There should not be any obstacles to prevent

the air circulation.

• A place where air circulation in the room will

be good.

• A place where drainage can be easily

obtained.

• A place where noise prevention is taken into

consideration.

• Do not install the unit near the door way.

• Ensure the spaces indicated by arrows from

the wall, ceiling, or other obstacles.

• The indoor unit must keep the maintenance

space.

Ceiling

Ceiling Board

3

0

o

r

m

o

r

e

Ceiling Board

3

0

o

r

l

e

s

s

Unit:cm

Duct type

• 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 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

Top view

(unit: mm)

Inspection hole

(600X600)

Control box

Front view

1

0

0

0

600

A

b

o

v

e

2

5

0

3

3

0

o

r

l

e

s

s

50 or

more

1

0

0

o

r

m

o

r

e

50 or

more

Floor

600

Front

H

6Air Conditioner

Installation of Indoor, Outdoor Unit

Convertible type

• Do not have any heat or steam near the unit.

• Select a place where there are no obstacles in

front of the unit.

• Make sure that condensation drainage can be

conveniently routed away.

• Do not install near a doorway.

• Ensure that the interval between a wall and

the left (or right) of the unit is more than

70cm.

• Use a stud finder to locate studs to prevent

unnecessary damage to the wall.

• There should not be any heat source or steam

near the unit.

• There should not be any obstacles to prevent

the air circulation.

• A place where air circulation in the room will

be good.

• A place where drainage can be easily

obtained.

• A place where noise prevention is taken into

consideration.

• Do not install the unit near the door way.

• Ensure the spaces indicated by arrows from

the wall, ceiling, or other obstacles.

(Floor/Wall installation)

More than

20cm

More than eye-level

More than

70cm

ENGLISH

More than

30cm

More than

70cm

More than

20cm

(Ceiling installation)

More than

20cm

More than

20cm

r unit

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.

that the spaces indicated by arrows

around front, back and side of the unit.

not place animals and plants in the path

of the warm air.

the air conditioner weight into account

and select a place where noise and vibration

are minimum.

a place so that the warm air and noise

from the air conditioner do not disturb

neighbors.

More than 60cm

More than

30cm

More than 30cm

More than

70cm

More

than 60cm

Installation Manual 7

Installation of Indoor, Outdoor Unit

length and the elevation

Capacity

24k Btu/h

30k Btu/h

36k Btu/h

Pipe Size

(Diameter:Ø)

GasLiquid

5/8"(15.88mm)3/8"(9.52mm)

5/8"(15.88mm)3/8"(9.52mm)

5/8"(15.88mm)3/8"(9.52mm)

Length A(m)

Standard

7.5

7.5

7.5

Max.

40

50

50

Elevation B(m)

Standard

5

5

5

Max.

30

30

30

*Additional

refrigerant(g/m)

45

45

45

Indoor unit

Outdoor unit

Outdoor unit

A

B

Outdoor unit

Indoor unit

A

B

Oil trap

A

B

Indoor unit

If piping length is more than 5m

CAUTION:

• Rated performance for refrigerant line length of:7.5m

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

basis of reliability.

• Improper refrigerant charge may result in abnormal cycle.

• Oil trap should be installed every 10 meters.

8Air Conditioner

The indoor unit installation

The indoor unit installation

te type

ENGLISH

Ceiling

Ceiling board

Level gauge

TE Series

600 (Ceiling opening)

39.5

521(Hanging bolt)

39.5

45

TH/TD Series

875 (Ceiling opening)

785(Hanging bolt)

45

TM/TN/TP Series

875

(Ceiling opening)

787

(Hanging bolt)

1

0

1

.

5

6

7

2

(

H

a

n

g

i

n

g

b

o

l

t

)

1

0

1

.

5

6

7

2

(

H

a

n

g

i

n

g

b

o

l

t

)

7

5

6

0

0

(

C

e

i

l

i

n

g

o

p

e

n

i

n

g

)

8

7

5

(

C

e

i

l

i

n

g

o

p

e

n

i

n

g

)

5

7

0

U

n

i

t

s

i

z

e

8

4

0

U

n

i

t

s

i

z

e

6

7

1

570 Unit size840 Unit size

840 Unit size

8

4

0

U

n

i

t

s

i

z

e

7

5

Unit:mmUnit:mmUnit:mm

CAUTION :

• This air-conditioner uses a drain

pump.

• Install the unit horizontally using

a level gauge.

• During the installation,care should be

taken not to damage electric wires.

NOTICE

•Select and mark the position for fixing bolts and piping

hole.

•Decide the position for fixing bolts slightly tilted to the

drain direction after considering the direction of drain

hose.

•Drill the hole for anchor bolt on the wall.

• Avoid the following installation location.

places as restaurants and kitchen where considerable amount of oil steam and flour is generated.

These may cause heat exchange efficiency reduction, or water drops, drain pump mal-function.

In these cases, take the following actions;

• Make sure that ventilation fan is enough to cover all noxious gases from this place.

• Ensure enough distance from the cooking room to install the air conditioner in such a place where it

may not suck oily steam.

installng air conditioner

Air conditioner

in such places where

cooking oil or iron powder is

generated.

Take enough

places where

distance

inflammable gas is generated.

Use the ventilation fan

for smoke-collecting

place where noxious gas is

hood with sufficient

capacity.

generated.

Cooking table

places near high frequency

generators.

Installation Manual 9

8

7

5

(

C

e

i

l

i

n

g

o

p

e

n

i

n

g

)

6

8

4

(

H

a

n

g

i

n

g

b

o

l

t

)

The Indoor Unit Installation

Ceiling

Hanging bolt

(W3/8 or M10)

Nut

(W3/8 or M10)

Spring washer

(M10)

Keep the length of the bolt

from the bracket to 40mm

Flat washer for M10

(accessory)

Ceiling board

Air Conditioner body

Ceiling board

Flat washer for M10

(accessory)

Nut

(W3/8 or M10)

Paper model

for installation

Adjust the same height

Set screw of

paper model (4 pieces)

Open the ceiling board

along the outer edge of the

paper model

• The following parts is option.

Hanging Bolt - W 3/8 or M10

Nut - W 3/8 or M10

Spring Washer - M10

Plate Washer - M10

• Drill the piping hole on the wall slightly tilted to the

outdoor side using a Ø 70 hole-core drill.

Wall

IndoorOutdoor

CAUTION:Tighten the nut and bolt

to prevent unit falling.

5

~

7

m

m

10Air Conditioner

1

5

0

m

m

The Indoor Unit Installation

type

CASE 1

POSITION OF SUSPENSION BOLT

• Apply a joint-canvas between the unit and

duct to absorb unnecessary vibration.

• Apply a filter Accessory at air return hole.

(Unit:mm)

Dimension

Capacity

ENGLISH

A

B

ABCDEF

30

30

(G)HI

30/36k Btu/hr45.5450

24k Btu/h93288035545.5450

87830186

87750163

I

H

Drainage hole

CASE 2

• Install the unit leaning to a drainage hole

side as a figure for easy water drainage.

M10 NutX 4

(Local

M10 SP. washer X 4

supply)

M10 washer

X 4

POSITION OF CONSOLE BOLT

• 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.

M10 washer X 4

(Local

M10 SP. washer

X 4

supply)

M10 NutX 4

Installation Manual 11

F

(G)

D

C

E

The Indoor Unit Installation

• 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.

Old buildingNew building

1 Set anchor

2 Plate washer

3 Spring washer

4 Nut

5 Suspension

bolts

CAUTION:Tighten the nut and bolt top

revent unit falling.

• Local supply

Set anchor

Plate washer

Spring washer

Nut

Suspension bolt

- M10

- M10

- W3/8 or M10

- W3/8 or M10

12Air Conditioner

The Indoor Unit Installation

CAUTION

ENGLISH

ldeclinationoftheindoorunitisveryimportantforthedrainoftheducttypeair

conditioner.

mthicknessoftheinsulationfortheconnectingpipeshallbe5mm.

Frontofview

•Theunitmustbehorizontalordeclinedtothedrainhoseconnectedwhenfinished

installation.

Ceiling

1

~

3

m

m

CORRECT

Drainage hole

INCORRECT

Drainage hole

CAUTION FOR GRADIENT OF

UNIT AND DRAIN PIPING

•Alwayslaythedrainwithdownward

inclination(1/50to1/100).

Preventanyupwardfloworreverseflow

inanypart.

•5mmorthickerformedthermalinsulator

shallalwaysbeprovidedforthedrain

pipe.

Lay the drain hose with a downward

inclination so water will drain out.

Thermal insulator

(Local supply)

Drainage pipe

(Local supply)

Unit

Make sure to be ge hole

•Upwardroutingnot

allowed

CORRECT

INCORRECT

AppliedU-TrapDimension

•InstalltheP-Trap(orU-Trap)toprevent

awaterleakagecausedbytheblocking

ofintakeairfilter.

A 70mm

B 2C

C 2 x SP

SP = External Pressure

(mmAq)

Ex) External Pressure

= 10mmAq

A 70mm

B 40mm

C 20mm

B

C

A

U-Trap

Installation Manual 13

The Indoor Unit Installation

tible type

Open side cover

two screws from side-cover as

shown in fig.

side-cover from side panel by slightly

pulling the edge of side cover.

the side-cover with your palm on the

backside.(Inlet grill side.)

the side-cover with other hand while

tapping to prevent it to fall down.

Drain hole is on the left side of the unit

and side cover opening is common for drain

pipe,connecting pipe and wiring diagram.

the rubber stopple in the desired

drain direction.

out the pipe hole from the left side-

cover with the help or nipper/plier.

hole on right side-cover only if right

side is selected for water drain.

2

Edge part

1

14Air Conditioner

The Indoor Unit Installation

MOUNTING THE ANCHOR NUT AND

BOLT

• Prepare 4 suspension bolts.(Each bolts length

should be same.)

• Measure and mark the position for the

Suspension bolts and the piping hole.

• Drill the hole for anchor nut on the ceiling.

• Insert the nuts and washer onto the

suspension bolts for locking the suspension

bolts on the ceiling.

• Mount the suspension bolts to the anchor-nuts

firmly.

• Secure the hangers onto the Suspension bolts

(adjust level roughly.) using nuts, washers and

spring washers.

• Adjust a level with a level gauge on the

direction of left-right, back-forth by adjusting

suspension bolts.

• Adjust a level on the direction of top-bottom by

adjusting supension the unit will be

declined to the bottomside so as to drain well.

Suspension

bolts

Spring

washer

Hangen

Max.

12mm

Nut

DIM.

MODEL

VL

VK

VJ

Anchor nut

Ceiling

Nut

Suspension

bolts

Washer

A

1655

1255

855

B

320

320

320

ENGLISH

A

Suspension bolt

B

Washer

:Tighten the nut and bolt to prevent unit

falling.

Hanging bolt

(W3/8 or M10)

Nut

(W3/8 or M10)

Spring washer

(M10)

Flat washer for M10

(accessory)

Nut

(W3/8 or M10)

Flat washer for M10

(accessory)

DRILL A HOLE IN THE WALL.

• Drill the piping hole with a ø70mm hole core

the piping hole at either the right or

the left with the hole slightly slanted to the

outdoor side.

Indoor

WALL

Outdoor

Installation Manual 15

(

3

/

1

6

"

~

5

/

1

6

"

)

5

-

7

m

m

The Indoor Unit Installation

Hang the Indoor unit on suspension bolt as per following guidelines:

the indoor unit to sufficient height.

the suspended part of four suspension bolt in the four hangers provided on the side of

main body one by one.

the indoor unit till the hangers rest on their respective flat washer.

the level in the top down direction by adjusting the suspension bolts.

Inclined the indoor unit as per direction provided in the fig

:Installation Information For Declination

l declinationof the indoor unit is very important for the drainof the

convertible type air conditioner.

m thickness of the insulation for the connecting pipe shall be 10mm.

the Installation Plates are fixed to horizontal line, the indoor unit after installing will

be declined to the bottomside.

Front of view

• The unit must be horizontal or inclined at angle.

• The inclination should be less than or equal to 1°or in between 10 to 20mm inclined in drain

direction as shown in fig.

Ceiling

10~20mm

Side of view

• The unit must be declined to the bottomside of the unit when finished installation.

Ceiling

5~10mm

16Air Conditioner

The Indoor Unit Installation

1) Indoor unit installation

IBefore Installing,prepare Installation Plates

• 'Installation Plates' are attached at the bottom

of indoor unit.

Detach them by removing each 3 screws at

both sides.

• Detach 'Side Plate (R,L)' by removing each 2

screws on both sides.

• Pull the upper right and left side of 'Inlet Grille'

to the front, and it will stop at slightly tilted

position.

• Unhook the 'Inlet hanger' from the 'Hanger

screw' on the both left and right side.

• Detach the 'Inlet Grille' from the Indoor Unit.

ENGLISH

Side Plate

Install Plate

Inlet hanger

1) Installation on the ceiling

• Measure and mark the position for the

Suspension bolts and the piping hole.

• Drill the hole for anchor nut on the ceiling.

Inlet Grille

Hanger

screw

1)

1076

265

Before secure the Installation Plates,

select the bent direction of the

Installion Plate to the inside or the

outside according to the installation

circumstances.

Suspension

bolt

Center-line for the

piping hole

2)

1236

265

• Drill the piping hole on the wall slightly tilted

to the outdoor side using a ø70 hole-core

drill.

Indoor

WALL

Outdoor

5~7mm

Installation Manual 17

The Indoor Unit Installation

• Insert the nuts and washer onto the

suspension bolts for locking the suspension

bolts on the ceiling.

• Mount the suspension bolts to the anchor-

nuts firmly.

• Secure the Installation plates onto the

Suspension bolts (adjust level roughly.)

using nuts, washers and spring washers.

1)

Nut

Anchor nut

Ceiling

Washer

Suspension

bolts

Suspension

bolts

Spring

washer

Nut

Max.

12mm

Washer

2)

• Engage 2 hooks on the both left and right

side of the unit to the lower slot of

Installation Plates.

• Adjust a level with a level gauge on the

direction of left-right, back-forth by adjusting

suspension bolts.

• Move the hooks on the unit to the upper slot

of Installation the unit will be

declined to the bottomside so as to drain

well.

Lower slot

Level gauge

Suspension

bolt

Adjust a level

Installation plate

Upper slot

18Air Conditioner

The Indoor Unit Installation

CAUTION

ENGLISH

l declinationof the indoor unit is very important for the drainof

the convertible type air conditioner.

m thickness of the insulation for the connecting pipe shall be 7mm.

the Installation Plates are fixed to horizontal line, the indoor unit after

installing will be declined to the bottomside.

Front of view

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

installation.

Ceiling

Drain hose

Ceiling

Side of view

• The unit must be declined to the bottomside of the unit when finished installation.

Ceiling

Installation Manual 19

The Indoor Unit Installation

• Secure the unit to the Installation Plates

with four M8 bolts and washers.

• Before working, refer to "Connecting pipe

to Indoor Unit" on page 16.

• Hook up the Inlet Grille Hook to the cabinet.

• Hang the Inlet Hanger to the screw.

Inlet hanger

Hook

Cabinet Bottom

• Fit the projection hooks of the side plates to

the 'Side Panel' and the 'Front Panel' by

lifting it.

• Fasten the screws.

2

1

20Air Conditioner

The Indoor Unit Installation

2) Installation on the Wall

• Select and mark the position for fixing bolts

and piping hole.

Decide the position for fixing bolts slightly

tilted to the drain direction after considering

the direction of drain hose.

• Drill the hole for anchor nut on the wall.

m

o

1

0

7

6

ENGLISH

r

e

t

2

6

0

h

a

n

2

6

5

• Drill the piping hole on the wall slightly tilted

to the outdoor side using a ø70 hole-core

drill.

Wall

IndoorOutdoor

• Secure the 'Install Plate' onto the wall with

four anchor bolts, washers and spring

washers.

Spring

washer

Wall

Nut

Washer

Anchor nut

Less than

12mm

Before secure the Install Plates, select the

bent direction of the 'Install Plate' to the

inside or outside according to the

installation circumstances.

1

2

3

6

Installation Manual 21

5

~

7

m

m

The Indoor Unit Installation

Install the Indoor unit onto Installation Plate.

• Insert 2 hooks on the both left and right

side of the unit to the inner slot (wall side)

of the Installation Plate.

• Secure the unit to the Installation Plate with

four M8 bolts and washers.

Inner slot

• Before working, refer to "Connecting pipe

and cable to Indoor Unit" on page 16.

• Hook up the Inlet Grille Hook to the cabinet.

• Hang the Inlet Hanger to the screw.

2

1

• Fit the projection hooks of the side plates to

the 'Side Panel' and the 'Front Panel' by

lifting it.

• Fasten the screws.

22Air Conditioner

The Indoor Unit Installation

3) Installation on the floor

Installation of Mount Bracket.

• Select and mark the position for Mount

Brackets and the piping hole.

• Drill the hole for the anchor nut on the wall.

• Drill the piping hole using a ø70 hole-core

drill.

• Secure the Mount Brackets on the wall with

four M4 screws.

Install the indoor unit onto the Mount

Brackets.

• Engage the slot at the back of the unit with

Mount Bracket.

Slot

From the left wall

more than 760mm

ENGLISH

From the

right wall

more than 840mm

448mm

Floor mount

bracket

• Drill the piping hole with 70mm dia, hole

core drill.

• Piping hole should be slightly slant to the

outdoor side.

Wall

IndoorOutdoor

After Installing,reassemble detached parts.

• Hang the 'Inlet Grille' and hook the 'Inlet

Hanger' to the Hanger Screw.

• Assemble the 'Side Plates(R,L)' with 2

screws on both left and right side.

Slot

Wall

Floor mount

bracket

Install plate

Piping hole

Installation Manual 23

5

~

7

m

m

Remote Controller Installation

Wired Remote Controller Installation

DISASSEMBLING

Front case

T

h

• Separate the under plate from Remote control box.

e

l

o

w

e

r

p

a

r

t

Lever carefully

the box open

using a screw

driver, etc.

Remote control

box body

• Fix the under plate on the wall

Face of wall

Under plate

• Fix the cord clamps on the wall by

ø 3 tapping screws (accessory).

• Fix the remote control cord.

Cord clamp

(accessory)

Screw (accessory)

ELECTRICAL WIRING

(Main board)

CN REMO

Wire and make sure that terminal

numbers are matched on unit side and

remote controller side.

The maximum length of the cord is 100m.

If the length of the cord exceeds 50m,

2

use a wire size greater than 0.5mm.

HOW TO MOUNT ONTO A WALL

HOW TO INSERT BATTERIES

the battery cover from the remote

controller.

• Slide the cover according to the arrow direction.

the two batteries.

• Be sure that the (+) and (-) directions are

correct.

• Be sure that both batteries are new.

-attach the cover.

• Slide it back into position.

24Air Conditioner

• Do not use rechargeable

batteries, such batteries differ

from standard dry cells in

shape, dimensions, and

performance.

• Romove the batteries from the

remote controller if the air

conditioner is not going to be

used for some long time.

Wiring Connection

Wiring Connection

ENGLISH

• Open the control box cover and connect the Remote controller cord and Indoor power wires.

Indoor

power cord

Remote

controller

cord

Control box cover

[Air inlet side view]

Control box cover screw

36k Btu

(3Ø)

R

Terminals on the Outdoor Unit

STN1(L)2(N)3

POWER INPUT

Terminals on the Indoor Unit

1(L)2(N)345

30k Btu

(1Ø)

Terminals on the Outdoor Unit

1(L)2(N)1(L)2(N)34

Terminals on the Indoor Unit

1(L)2(N)345

POWER INPUT

24k Btu

(1Ø)

Terminals on the outdoor unit

1(L)2(N)1(L)2(N)34

Terminals on the Indoor Unit

1(L)2(N)345

Power Input

CAUTION

The power cord connected to the outdoor unit

should be complied with the following specifications

(This equipment shall be provided with a cord set complying

with the national regulation.)

Capacity

24k/30k

2

0

m

The connecting cable connected to the indoor and

outdoor unit should be complied with the following

specifications

(This equipment shall be provided with a

cord set complying with the national regulation.)

NORMAL

CROSS-SECTIONAL

AREA0.75mm

2

(12/18/24/30/36K)

2

0

m

m

G

N

/

Y

L

m

1 Phase

2.5mm

7

.

5

m

m

G

N

/

Y

L

G

N

/

Y

L

2

0

m

m

Capacity

36k

3 Phase

1.5mm

If the supply cord is damaged, it must be replaced by a special cord or assembly available from the manufacturer

or its service agent.

W

ARNING:

Make sure that the screws of the terminal are free from looseness.

Installation Manual 25

Wiring Connection

1. All wiring must comply with LOCAL REGULATIONS.

2. Select a power source that is capable of supplying the current required by the air conditioner.

3. Feed the power source to the unit via a distribution switch board designed for this purpose.

4. The terminal screws inside the control box may be loose due to vibration during transport.

Check the screws for loose connection.

(Running the air conditioner with loose connection can overload and damage electrical

components.)

5. Always ground the air conditioner with a grounding wire and connector to meet the LOCAL

REGULATION.

CAUTION:

• The circuit diagram is not subject to

change without notice.

• Be sure to connect wires according

to the wiring diagram.

• Connect the wires firmly, so that not

to be pulled out easily.

• Connect the wires according to

color codes by referring the wiring

diagram.

Capacity

24k Btu/h

30k Btu/h

36k Btu/h

1 Phase

20 A

30 A

3 Phase

Main power source

Air

Conditioner

Circuit Breaker

Use a 30A circuit breaker

or time delay fuse.

25 A

CAUTION:

The Power cord connected to the unit should be selected according to the following

specifications .

1. Remove the Cover control from the unit by

loosening a screw.

Connect the wires to the terminals on the

control board individually as following.

2. Secure the cable onto the control board with

the holder (clamper).

3. Refix the cover control to the original position

with the screw.

4. Use a recongnized circuit breaker between

the power source and the unit. A

disconnection device to adequately

disconnect all supply lines must be fitted.

Outdoor unit

Terminal block

Over 5mm

Holder for

power supply

cord

Power supply

cord

Connecting

cable

Cover control

Holder for

connecting

cable

26Air Conditioner

Connecting Pipes to the Indoor Unit

Connecting Pipes to the Indoor Unit

ENGLISH

Preparation of Piping

Main cause of gas leakage is defect in flaring

out correct flaring work in the

following procedure.

Copper

tube

90°

Slanted Uneven Rough

the pipes and the cable.

• Use the accessory piping kit or the pipes

purchased locally.

• Measure the distance between the indoor

and the outdoor unit.

• Cut the pipes a little longer than measured

distance.

•

Cut the cable 1.5m longer than the pipe

length.

Pipe

Reamer

Point down

removal

• Completely remove all burrs from the cut

cross section of pipe/tube.

• Put the end of the copper tube/pipe to

downward direction as you remove burrs in

order to avoid to let burrs drop in the tubing.

Flare nut

Copper tube

g nut on

• Remove flare nuts attached to indoor and

outdoor units, than put them on pipe/tube

having completed burr removal.

(Not possible to put them on after flaring work)

g work

• Carry out flaring work using dedicated

flaring tool for R-410A as shown below.

Outside diameter

1/4"

3/8"

1/2"

5/8"

3/4"

"A"

1.1~1.3 mm

1.5~1.7 mm

1.6~1.8 mm

1.6~1.8 mm

1.9~2.1 mm

Bar

"A"

Bar

Handle

Yoke

Cone

Copper pipe

Clamp handle

Red arrow mark

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

indicated dimension in the table above.

Smooth all round

Inside is shining without scratches

= Improper flaring =

• Compare the flared work with figure below.

• If flare is noted to be defective, cut off the

flared section and do flaring work again.

Even length

all round

Inclined

SurfaceCrackedUneven

damagedthickness

Installation Manual 27

Connecting Pipes to the Indoor Unit

the piping according to its routing.

Avoid bending and bending back the same

piping point more than three times.(This will

result in hardening the pipe.)

deforming the piping, align centers of

the union fitting of the indoor unit and the

piping, and tighten them firmly with

wrenches.

t pipe to the service valve or ball

valve which is located below the outdoor unit.

completing the piping connection, be

sure to check if there is gas leakage in indoor

and outdoor connection.

Liquid side

Indoor

unit

Outdoor

unit

Flare connection

Gas side

Flare connection

After completing the piping connection,

execute vacuum drying for the connecting

piping and the indoor unit.

The vacuum drying must be carried out

using the service ports of both the liquid and

gas side valves.

CAUTION:Use two wrenches and

tighten with regular torque.'

Outside diameter

mminch

Ø6,351/4

Ø9,523/8

Ø12,71/2

Ø15,885/8

Ø19,053/4

torque

kgf

.

m

1.8~2.5

3.4~4.2

5.5~6.6

6.3~8.2

9.9~12.1

Union

28Air Conditioner

Installation to Decorative Panel

Installation to Decorative Panel

ENGLISH

The decoration panel has its

installation direction.

Before installing the decoration panel,

always remove the paper template.

arily fix two decoration panel fixing screws (hexagon M5 screw) on the unit body.

(Tighten by amount 10mm in length.)

The fixing screws (hexagon M5 screw) are included the indoor unit box.

the air inlet grille from the decoration panel.(Remove the hook for the air inlet grille cord.)

the decoration panel key hole ( ) on the screws fixed in step above, and slide

the panel so that the screws reach the key hole edge.

ten completely two temporarily fixed screws and other two screws.(Total 4 screws)

t the louver motor connector and display connector.

tightening these screws, install the air inlet grille (including the air filter).

Piping side

Air conditioner unit

Control box cover

Decoration panel fixing screws

(hexagon M5 screws)

Temporally fitting at 2 places

(Tightening about 10mm)

Louver motor

Decoration panel

Display

Lead wire for

louver motor and

display

Decoration panel fixing screws

(Hexagon M5 screw)

Inlet Grille

CAUTION :Install

certainly the

decoration panel.

Cool air leakage

causes sweating.

Water drops fall.

Good exampleBad example

Air conditioner

unit

Ceiling

board

Air

Air conditioner unit

Cool air leakage

(no good)

Ceiling

board

Decoration

panel

Decoration panel

Fit the insulator (this part) and

be careful for cool air leakage

Installation Manual 29

Indoor Unit Drain Piping

CAUTION:Install certainly the decorative panel.

Water drops fall.

Cool air leakage causes sweating.

Good example

Air conditioner

unit

Ceiling

board

Decorative panel

Fit the insulator (this part) and

be careful for cool air leakage

Bad example

Air

Air conditioner unit

Cool air leakage

(no good)

Ceiling

board

Decorative

panel

Indoor Unit Drain Piping

• Drain piping must have down-slope (1/50 to

1/100):be sure not to provide up-and-down

slope to prevent reversal flow.

• During drain piping connection, be careful

not to exert extra force on the drain port on

the indoor unit.

• The outside diameter of the drain

connection on the indoor unit is 32mm.

Piping material:Polyvinyl chloride pipe VP-25

and pipe fittings

• Be sure to execute heat insulation on the

drain piping.

• Install the drain raising pipes at a right

angle to the indoor unit and no more than

300mm from the unit.

Pipe clamp

Indoor unit

Upward

routing

not allowed

Maintenance

drain port

300mm or less

1 -1.5m

7

0

0

o

r

l

e

s

s

Drain raising pipe

Clamp metal(attached)Drain hose(attached)

Heat insulation material:Polyethylene foam with thickness more than 8 mm.

Flexible drain hose

Flexible drain hose

30Air Conditioner

Indoor Unit Drain Piping

Drain test

ENGLISH

te type

The air conditioner uses a drain pump to drain water.

Use the following procedure to test the drain pump operation:

• Connect the main drain pipe to the exterior and leave

it provisionally until the test comes to an end.

Flexible drain hose

Feed water

(accessory)

• Feed water to the flexible drain hose and check the

Main

piping for leakage.

drain pipe

• Be sure to check the drain pump for normal

Drain

operating and noise when electrical wiring is

port

Glue the joint

Drain Pump

complete.

Drain hose connection

• When the test is complete, connect the flexible drain

Use the clip (accessory)

hose to the drain port on the indoor unit.

Drain pan

Flexible drain hose

type

1) Remove the Air Filter.

2) Check the drainage.

• Spray one or two glasses of water upon the

evaporator.

• Ensure that water flows drain hose of indoor unit

without any leakage.

Installation Manual 31

Indoor Unit Drain Piping

tible type

the air direction louvers up-and-down to

the position(horizontally) by hand.

To check the drainage.

a glass of water on the evaporator using

a kettle.

the water flows through the drain

hose of the indoor unit without any leakage

and goes out the drain exit.

Drain piping

drain hose should point downward for

easy drain flow.

Downward slope

not make drain piping like the following.

Do not raise

Accumulated

drain water

Air

Tip of drain hose

dipped in water

Water

leakage

Less than

50mm gap

Water

leakage

Water

leakage

Waving

Ditch

32Air Conditioner

Indoor Unit Drain Piping

Heat insulation

the heat insulation material for the refrigerant piping which has an excellent heat-resistance

(over 120°C).

tions in high humidity

circumstance:

This air conditioner has been tested

according to the "KSStandard Conditions

with Mist" and confirmed that there is not

any r, if it is operated for a

long time in high humid atmosphere (dew

point temperature:more than 23°C), water

drops are liable to this case, add

heat insulation material according to the

following procedure:

• Heat insulation material to

Adiabatic glass wool with thickness 10 to

20mm.

• Stick glass wool on all air conditioners that

are located in ceiling atmosphere.

Fastening band

(accessory)

ENGLISH

Refrigerant piping

Indoor unit

Thermal insulator

(accessory)

Forming the piping

Form the piping by wrapping the

connecting portion of the indoor

unit with insulation material and

secure it with two kinds of vinyl

tape.

• If you want to connect an additional drain

hose, the end of the drain outlet should be

routed above the the drain

hose appropriately.

Seal a small opening

around the pipings

with gum type sealer.

Drain hose

Taping

In cases where the outdoor unit is

installed below the indoor unit

perform the following.

the piping, drain hose and connecting

cable from down to up.

the tapped piping along the exterior

wall using saddle or equivalent.

Pipings

Plastic Band

Connecting

cable

Power supply

cord

Trap is required to prevent water from entering

into electrical parts.

Installation Manual 33

Indoor Unit Drain Piping

In cases where the Outdoor unit is

installed above the Indoor unit

perform the following.

the piping and connecting cable from

down to up.

the taped piping along the exterior

a trap to prevent water entering

the room.

the piping onto the wall by saddle or

equivalent.

Seal a small opening

around the pipings

with gum type sealer.

Trap

Settlement of outdoor unit

the outdoor unit with a bolt and

nut[ø10mm(0.39in)] tightly and horizontally on

a concrete or rigid mount.

installing on the wall, roof or rooftop,

anchor the mounting base securely with a

nail or wire assuming the influence of wind

and earthquake.

the vibration of the unit is transmitted to the

hose, secure the unit with an anti-vibration

rubber.

34Air Conditioner

Test running

Test running

ENGLISH

TIONS IN TEST RUNNING

• The initial power supply must provide at least 90% of the rated voltage.

Otherwise, the air conditioner should not be operated.

For test run,carry out the cooling operation firstly even during heating

heating operation is carried out firstly,it leads to the trouble

of attention must be paid.

Carry out the test run more than 5 minutes without fail.

(Test run will be cancelled 18 minutes later automatically)

• The test run is started by pressing the room temperature checking button and down timer

button for 3 seconds at the same time.

• To cancel the test run, press any button.

CAUTION

CHECK THE FOLLOWING ITEMS WHEN INSTALLATION IS COMPLETE

• After completing work, be sure to measure and record trial run properties, and store measured

data, etc.

• Measuring items are room temperature, outside temperature, suction temperature, blow out

temperature, wind velocity, wind volume, voltage, current, presence of abnormal vibration and

noise, operating pressure, piping temperature, compressive pressure.

• As to the structure and appearance, check following items.

Is the circulation of air adequate?

Is the draining smooth?

Is the heat insulation complete

(refrigerant and drain piping)?

Is there any leakage of refrigerant?

Is the remote controller switch operated?

Is there any faulty wiring?

Are not terminal screws loosened?

M4......118N

.

cm{12kgf

.

cm}

M6......245N

.

cm{25kgf

.

cm}

M5......196N

.

cm{20kgf

.

cm}

M8......588N

.

cm{60kgf

.

cm}

tion of power supply

t the power supply cord to the independent power supply.

• Circuit breaker is required.

e the unit for fifteen minutes or more.

tion of the performance

e the temperature of the

intake and discharge air.

the difference between the

intake temperature and the discharge

one is more than 8°C (Cooling) or

reversely (Heating).

Thermometer

Installation Manual 35

Test running

CAUTIO

N:After the confirmation of the above conditions,prepare the wiring

as follows:

1) Never fail to have an individual power specialized for the air conditioner.

As for the method of wiring,be guided by the circuit diagram pasted on

the inside of control box cover.

2) Provide a circuit breaker switch between power source and the unit.

3) The screw which fasten the wiring in the casing of electrical fittings are

liable to come loose from vibrations to which the unit is subjected

during the course of them and make sure that

they are all tightly fastened.(If they are loose,it could give rise to burn-

out of the wires.)

4) Specification of power source

5) Confirm that electrical capacity is sufficient.

6) Be sure that the starting voltage is maintained at more than 90 percent

of the rated voltage marked on the name plate.

7) Confirm that the cable thickness is as specified in the power sources

specification.

(Particularly note the relation between cable length and thickness.)

8) Never fail to equip a leakage breaker where it is wet or moist.

9) The following troubles would be caused by voltage drop-down.

• Vibration of a magnetic switch, damage on the contact point there of, fuse

breaking, disturbance to the normal function of a overload protection device.

• Proper starting power is not given to the compressor.

10) Use only 1 remote-controller contained in the Cassette type indoor unit,

when you combine to use both cassette type indoor unit and different

kind of indoor unit.

After setting the ESP value in the Duct Type Indoor Unit,the main

power turns off and then remove the remote controller.

HAND OVER

Teach the customer the operation and maintenance procedures, using the operation manual

(air filter cleaning, temperature control, etc.).

36Air Conditioner

Optional Operation

Optional Operation

ENGLISH

Thermistor System

(1) Open the rear cover of the wired remote-controller to set the mode.

(2) Select one of three selectable modes as follows.

• Position 1:The room temperature is controlled by the thermistor of the main body.

• Position 2:The room themperature is controlled by the thermistor of the wired remote-

controller, control the temperature according to the position of wired remote-

controller.

• Position 3:The room temperature is controlled by lower temperature between the

temperature of main body and of remote-controller sensor.

(3) Move the slide switch to set position.

Room Temp. sensor

Slide switch for 2 Thermistor

Position 2

Position 1

Position 3

REMO

MAIN

2TH

Slide switch for ceiling height

(4) Close the rear cover and check if it works normally.

CAUTIO

N:

• Select the position after counselling with a customer.

• In case of cooling mode,room temperature is controlled by the main body sensor.

• To control the room temperature by a wired remote controller,install controller(room

) to sense the temperature more accurately.

• Manufactured in the position 3.

Installation Manual 37

Optional Operation

ing air volume to the height of ceiling (Cassette type)

You can choose the RPM(or air volume) of indoor motor according to the height of ceiling to

supply the comfortable atmosphere to consumers.

Procedure

the selectable position in the table after measuring the height of ceiling.

Ceiling height

more than 3.3m

2.7~3.3m

less than 2.7m

Mode of slide switch

High Ceiling

Standard

Low Ceiling

Change of air volume

Increasing

-

Decreasing

Remark

Manufactured in

standard mode

the case of changing the height as "high" or "low", open the rear cover of the wired remote-

controller.

the slide switch to the set position.

Slide switch for 2 Thermistor

Low ceiling

Standard

(Default)

High Ceiling

Lo

STAND

Hi

Slide switch for ceiling height

the rear cover and check if it works normally.

38Air Conditioner

Optional Operation

3.E.S.P.(External Static Pressure) Setting (Duct type)

(1) Open the rear cover of the wired remote-controller to set the mode.

(2) Select one of three selectable modes as follows.

IWithout Zone System

on V-H, F-H:

• This position sets the maximum E.S.P as a default set.

on V-L:

• This position sets the minimum E.S.P as a default set.

IWith Zone System

on V-H:

• Maximum E.S.P setting & Fan speed is varied according to the state of dampers by micom.

on F-H:

• Maximum E.S.P setting & Fan speed doesn't vary according to the opening & Closing of

dampers.

on V-L:

• Minimum E.S.P setting & Fan speed is varied according to the state of dampers by micom.

* Maximum

Minimum

:24k-6mmAq

:0mmAq

ENGLISH

(3) Move the slide switch to set position.

V-L

F-H

V-H

Slide switch for ceiling height

(4) Close the rear cover and check if it works normally.

• Select the position after checking duct work and E.S.P of the unit.

• Maunfactured in the position F-H.

CAUTIO

N:

Installation Manual 39

Optional Operation

to Set E.S.P?

Procedure of RPM change:

Ex) External Static pressure is 6mmAq for 36k.

• To protect the unit, compressor is designed to be off during g.

1

Push the "On/Off" button.

The unit will start.

AUTO SWINGOPERATIONSET TEMP

Room Temp

FAN SPEED

HI

MED

LO

SUB FUNCTION

Time

OnOff

Set

01

AUTOHeaterPreheat

JETDefrostHumidify

FilterOut door

ZONE

1234

17192123

Timer

Operation unit

030507

Program set

09111315

2

Push the "Timer" and "Wind" button simultaneously for more then 3 seconds.

Timer

AUTO SWINGOPERATIONSET TEMP

Room Temp

FAN SPEED

HI

MED

LO

SUB FUNCTION

Time

OnOff

Set

01

AUTOHeaterPreheat

JETDefrost

Humidify

FilterOut door

ZONE

1234

17192123

Timer

Operation unit

030507

Program set

09111315

3

Push the "Up" of "Down" button for E.S.P adjustment.

And, adjust the number which you want.(In this example, the number is "220".Refer to the

table 1 on the next page.)

AUTO SWINGOPERATIONSET TEMP

Room Temp

FAN SPEED

HI

MED

LO

SUB FUNCTION

Time

OnOff

Set

01

AUTOHeaterPreheat

JETDefrost

Humidify

FilterOut door

ZONE

1234

17192123

Timer

Operation unit

030507

Program set

09111315

Note:The range of selection is from 1~, the display is two Digit only.

If the range selection is above 100 then the third digit will appear in the screen as shown.

4

Shift the fan speed mode by pressing the fan speed button.

And then, Adjust numbers of next steps by repeating the stage 3.

(In this example, the numbers are "235" and "243" respectly)

5

Push the "Timer" and "Wind" button simultaneously for more than 3 seconds.

Then, Wind Data is memorized by the EEPROM of the main PCB.

AUTO SWINGOPERATIONSET TEMP

Room Temp

FAN SPEED

HI

MED

LO

SUB FUNCTION

Timer

OnOff

Set

01

Time

Timer

Operation unit

030507

AUTOHeaterPreheat

JETDefrostHumidify

FilterOut door

ZONE

1234

17192123

Program set

09111315

40Air Conditioner

Optional Operation

[Table.1]

Static Pressure(mmAq)

Model Name

24 k

Step

High

Med

Low

High

30 k

Med

Low

High

36 k

Med

Low

CMM(CFM)

18(636)

16.5(583)

14(494)

26.5(936)

23(812)

20(706)

32(1130)

29(1024)

26.5(936)

220

235

250

153

173

190

230

240

245

205

230

240

150

173

190

230

238

245

190

220

235

150

175

190

225

237

243

50

200

230

148

175

190

220

235

243

02468

Setting Value

1

100

210

130

170

190

150

230

240

1

155

190

1

220

240

10121415

ENGLISH

Note

: sure to set the value refering table cted set value will cause mal-

function.

1 is based at ing to the fluctuation of voltage,air flow rate

varies.

Installation Manual 41

Optional Operation

conditioners should not be installed in areas where corrosive gases, such as acid or alkaline

gas, are produced.

not install the product where it could be exposed to sea wind (salty wind) can

result corrosion on the ion, particularly on the condenser and evaporator fins,

could cause product malfunc-tion or inefficient performance.

outdoor unit is installed close to the seaside, it should avoid direct exposure to the sea wind.

Otherwise it needs additional anticorrosion treatment on the heat exchanger.

Selecting the location(Outdoor Unit)

1) If the outdoor unit is to be installed close to the seaside, direct exposure to the sea wind

should be l the outdoor unit on the opposite side of the sea wind direction.

Sea windSea wind

2) In case, to install the outdoor unit on the seaside, set up a windbreak not to be exposed to the

sea wind.

Windbreak

• It should be strong enough like concrete

to prevent the sea wind from the sea.

• The height and width should be more

than 150% of the outdoor unit.

Sea wind

• It should be keep more than 70 cm of

space between outdoor unit and the

windbreak for easy air flow.

3) Select a well-drained place.

❈ you can’t meet above guide line in the seaside installation, please contact LG

Electronics for the additional anticorrosion treatment.

ic ( more than once/year ) cleaning of the dust or salt particles stuck on the

heat exchanger by using water

42Air Conditioner

2024年10月5日发(作者：字虹星)

ENGLISH

ESPAÑOL

INSTALLATION MANUAL

AIR CONDITIONER

• 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.

P/NO : MFL40910608

Installation

Requirements

3

Installation of Indoor,

.6

The indoor unit

9

Remote controller

24

25

Connecting Pipes to

the 27

Installation to

29

Indoor unit drain

30

• Pipes:Gas side

Liquid side

• Insulated drain hose

• Additional Drain hose

Inner Dia

32mm

25mm

• Additional drain pipe

(Convertible type)

(15.5mm)

• Flaring Tools set

• Torque Wrenches

• Hexagonal Wrench (4mm, 5mm)

• Gas-leak detector

Required PartsRequired Tools

• Connecting cable

• Four Type "A" Screw

• Hanging Bolt

(W 3/8 or M10 length 650mm)

• Level

• Screw driver

• Electric drill

• Hole core drill (ø70mm)

35

•

Owner’s Manual

• Thermometer

37

Installation guide at

.42

2Air Conditioner

Safety Precautions

Safety Precautions

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

must be followed.

IBe sure to read before installing the air conditioner.

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

IIncorrect operation due to ignoring instruction will cause harm or seriousness is

classified by the following indications.

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage to properties only.

IThe meanings of the symbols used in this manual are as shown below.

ENGLISH

Be sure not to do.

Be sure to follow the instruction.

IInstallation

Always perform ’t use a power cord,a

plug or a loose socket which

is damaged.

• Otherwise, it may cause a fire

or electrical shock.

Always install an air leakage

breaker and a dedicated

switching board.

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.

Do not keep or use flammable

gases or combustibles near

the air conditioner.

• Otherwise, it may cause a fire

or the failure of product.

• Otherwise, it may cause

electrical shock.

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• No installation may cause a fire

and electrical 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.

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.

Installation Manual 3

Safety Precautions

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.

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.

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

■Operation

Do not share the outlet with

other appliances.

• It will cause an electric shock

or a fire due to heat

generation.

Take care so that the power

cord may not be pulled

during operation.

• Otherwise, it may cause a fire

or electrical shock.

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 allow water to run

into electrical parts.

Do not use the damaged

power cord.

• 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.

Do not use the power cord

near the heating tools.

Do not modify or extend the

power cord randomly.

• Otherwise, it may cause a fire

or electrical shock.

Keep the flames away.

• Otherwise, it may cause a fire.

Do not open the suction

inlet of the indoor/outdoor

unit during operation.

• Otherwise, it may electrical

shock and failure.

Never touch the metal parts

of the unit when removing

the filter.

• They are sharp and may

cause injury.

• Otherwise, it may cause a fire

and electrical shock.

Hold the plug by the head

when taking it out.

• Otherwise, it may cause the• It may cause electric shock

failure of machine or electricaland damage.

shock.

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.

When the product is submerged into water,

always contact the service center.

• Otherwise, it may cause a fire or electrical

shock.

4Air Conditioner

Do not place a heavy object on the power

cord.

• 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.

Safety Precautions

IInstallation

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.

Keep level parallel in installing the product.

• Otherwise, it may cause vibration or water

leakage.

ENGLISH

Always inspect gas leakage after the

installation and repair of product.

• Otherwise, it may cause the failure of product.

IOperation

Avoid excessive cooling and perform

ventilation sometimes.

• Otherwise, it may do harm to your health.

Use a soft cloth to not use wax,

thinner,or a strong detergent.

• The appearance of the air conditioner may

deteriorate, change color, or develop surface

flaws.

Do not place obstacles around the flow inlet

or outlet.

• Otherwise, it may cause the failure of appliance

or an accident.

Do not use an appliance for special purposes

such as preserving animals vegetables,

precision machine,or art articles.

• Otherwise, it may damage your properties.

Installation Manual 5

Installation of Indoor, Outdoor Unit

Installation of Indoor,Outdoor Unit

Selection of the best location

unit

Cassette type

• There should not be any heat source or steam

near the unit.

• There should not be any obstacles to prevent

the air circulation.

• A place where air circulation in the room will

be good.

• A place where drainage can be easily

obtained.

• A place where noise prevention is taken into

consideration.

• Do not install the unit near the door way.

• Ensure the spaces indicated by arrows from

the wall, ceiling, or other obstacles.

• The indoor unit must keep the maintenance

space.

Ceiling

Ceiling Board

3

0

o

r

m

o

r

e

Ceiling Board

3

0

o

r

l

e

s

s

Unit:cm

Duct type

• 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 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

Top view

(unit: mm)

Inspection hole

(600X600)

Control box

Front view

1

0

0

0

600

A

b

o

v

e

2

5

0

3

3

0

o

r

l

e

s

s

50 or

more

1

0

0

o

r

m

o

r

e

50 or

more

Floor

600

Front

H

6Air Conditioner

Installation of Indoor, Outdoor Unit

Convertible type

• Do not have any heat or steam near the unit.

• Select a place where there are no obstacles in

front of the unit.

• Make sure that condensation drainage can be

conveniently routed away.

• Do not install near a doorway.

• Ensure that the interval between a wall and

the left (or right) of the unit is more than

70cm.

• Use a stud finder to locate studs to prevent

unnecessary damage to the wall.

• There should not be any heat source or steam

near the unit.

• There should not be any obstacles to prevent

the air circulation.

• A place where air circulation in the room will

be good.

• A place where drainage can be easily

obtained.

• A place where noise prevention is taken into

consideration.

• Do not install the unit near the door way.

• Ensure the spaces indicated by arrows from

the wall, ceiling, or other obstacles.

(Floor/Wall installation)

More than

20cm

More than eye-level

More than

70cm

ENGLISH

More than

30cm

More than

70cm

More than

20cm

(Ceiling installation)

More than

20cm

More than

20cm

r unit

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.

that the spaces indicated by arrows

around front, back and side of the unit.

not place animals and plants in the path

of the warm air.

the air conditioner weight into account

and select a place where noise and vibration

are minimum.

a place so that the warm air and noise

from the air conditioner do not disturb

neighbors.

More than 60cm

More than

30cm

More than 30cm

More than

70cm

More

than 60cm

Installation Manual 7

Installation of Indoor, Outdoor Unit

length and the elevation

Capacity

24k Btu/h

30k Btu/h

36k Btu/h

Pipe Size

(Diameter:Ø)

GasLiquid

5/8"(15.88mm)3/8"(9.52mm)

5/8"(15.88mm)3/8"(9.52mm)

5/8"(15.88mm)3/8"(9.52mm)

Length A(m)

Standard

7.5

7.5

7.5

Max.

40

50

50

Elevation B(m)

Standard

5

5

5

Max.

30

30

30

*Additional

refrigerant(g/m)

45

45

45

Indoor unit

Outdoor unit

Outdoor unit

A

B

Outdoor unit

Indoor unit

A

B

Oil trap

A

B

Indoor unit

If piping length is more than 5m

CAUTION:

• Rated performance for refrigerant line length of:7.5m

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

basis of reliability.

• Improper refrigerant charge may result in abnormal cycle.

• Oil trap should be installed every 10 meters.

8Air Conditioner

The indoor unit installation

The indoor unit installation

te type

ENGLISH

Ceiling

Ceiling board

Level gauge

TE Series

600 (Ceiling opening)

39.5

521(Hanging bolt)

39.5

45

TH/TD Series

875 (Ceiling opening)

785(Hanging bolt)

45

TM/TN/TP Series

875

(Ceiling opening)

787

(Hanging bolt)

1

0

1

.

5

6

7

2

(

H

a

n

g

i

n

g

b

o

l

t

)

1

0

1

.

5

6

7

2

(

H

a

n

g

i

n

g

b

o

l

t

)

7

5

6

0

0

(

C

e

i

l

i

n

g

o

p

e

n

i

n

g

)

8

7

5

(

C

e

i

l

i

n

g

o

p

e

n

i

n

g

)

5

7

0

U

n

i

t

s

i

z

e

8

4

0

U

n

i

t

s

i

z

e

6

7

1

570 Unit size840 Unit size

840 Unit size

8

4

0

U

n

i

t

s

i

z

e

7

5

Unit:mmUnit:mmUnit:mm

CAUTION :

• This air-conditioner uses a drain

pump.

• Install the unit horizontally using

a level gauge.

• During the installation,care should be

taken not to damage electric wires.

NOTICE

•Select and mark the position for fixing bolts and piping

hole.

•Decide the position for fixing bolts slightly tilted to the

drain direction after considering the direction of drain

hose.

•Drill the hole for anchor bolt on the wall.

• Avoid the following installation location.

places as restaurants and kitchen where considerable amount of oil steam and flour is generated.

These may cause heat exchange efficiency reduction, or water drops, drain pump mal-function.

In these cases, take the following actions;

• Make sure that ventilation fan is enough to cover all noxious gases from this place.

• Ensure enough distance from the cooking room to install the air conditioner in such a place where it

may not suck oily steam.

installng air conditioner

Air conditioner

in such places where

cooking oil or iron powder is

generated.

Take enough

places where

distance

inflammable gas is generated.

Use the ventilation fan

for smoke-collecting

place where noxious gas is

hood with sufficient

capacity.

generated.

Cooking table

places near high frequency

generators.

Installation Manual 9

8

7

5

(

C

e

i

l

i

n

g

o

p

e

n

i

n

g

)

6

8

4

(

H

a

n

g

i

n

g

b

o

l

t

)

The Indoor Unit Installation

Ceiling

Hanging bolt

(W3/8 or M10)

Nut

(W3/8 or M10)

Spring washer

(M10)

Keep the length of the bolt

from the bracket to 40mm

Flat washer for M10

(accessory)

Ceiling board

Air Conditioner body

Ceiling board

Flat washer for M10

(accessory)

Nut

(W3/8 or M10)

Paper model

for installation

Adjust the same height

Set screw of

paper model (4 pieces)

Open the ceiling board

along the outer edge of the

paper model

• The following parts is option.

Hanging Bolt - W 3/8 or M10

Nut - W 3/8 or M10

Spring Washer - M10

Plate Washer - M10

• Drill the piping hole on the wall slightly tilted to the

outdoor side using a Ø 70 hole-core drill.

Wall

IndoorOutdoor

CAUTION:Tighten the nut and bolt

to prevent unit falling.

5

~

7

m

m

10Air Conditioner

1

5

0

m

m

The Indoor Unit Installation

type

CASE 1

POSITION OF SUSPENSION BOLT

• Apply a joint-canvas between the unit and

duct to absorb unnecessary vibration.

• Apply a filter Accessory at air return hole.

(Unit:mm)

Dimension

Capacity

ENGLISH

A

B

ABCDEF

30

30

(G)HI

30/36k Btu/hr45.5450

24k Btu/h93288035545.5450

87830186

87750163

I

H

Drainage hole

CASE 2

• Install the unit leaning to a drainage hole

side as a figure for easy water drainage.

M10 NutX 4

(Local

M10 SP. washer X 4

supply)

M10 washer

X 4

POSITION OF CONSOLE BOLT

• 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.

M10 washer X 4

(Local

M10 SP. washer

X 4

supply)

M10 NutX 4

Installation Manual 11

F

(G)

D

C

E

The Indoor Unit Installation

• 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.

Old buildingNew building

1 Set anchor

2 Plate washer

3 Spring washer

4 Nut

5 Suspension

bolts

CAUTION:Tighten the nut and bolt top

revent unit falling.

• Local supply

Set anchor

Plate washer

Spring washer

Nut

Suspension bolt

- M10

- M10

- W3/8 or M10

- W3/8 or M10

12Air Conditioner

The Indoor Unit Installation

CAUTION

ENGLISH

ldeclinationoftheindoorunitisveryimportantforthedrainoftheducttypeair

conditioner.

mthicknessoftheinsulationfortheconnectingpipeshallbe5mm.

Frontofview

•Theunitmustbehorizontalordeclinedtothedrainhoseconnectedwhenfinished

installation.

Ceiling

1

~

3

m

m

CORRECT

Drainage hole

INCORRECT

Drainage hole

CAUTION FOR GRADIENT OF

UNIT AND DRAIN PIPING

•Alwayslaythedrainwithdownward

inclination(1/50to1/100).

Preventanyupwardfloworreverseflow

inanypart.

•5mmorthickerformedthermalinsulator

shallalwaysbeprovidedforthedrain

pipe.

Lay the drain hose with a downward

inclination so water will drain out.

Thermal insulator

(Local supply)

Drainage pipe

(Local supply)

Unit

Make sure to be ge hole

•Upwardroutingnot

allowed

CORRECT

INCORRECT

AppliedU-TrapDimension

•InstalltheP-Trap(orU-Trap)toprevent

awaterleakagecausedbytheblocking

ofintakeairfilter.

A 70mm

B 2C

C 2 x SP

SP = External Pressure

(mmAq)

Ex) External Pressure

= 10mmAq

A 70mm

B 40mm

C 20mm

B

C

A

U-Trap

Installation Manual 13

The Indoor Unit Installation

tible type

Open side cover

two screws from side-cover as

shown in fig.

side-cover from side panel by slightly

pulling the edge of side cover.

the side-cover with your palm on the

backside.(Inlet grill side.)

the side-cover with other hand while

tapping to prevent it to fall down.

Drain hole is on the left side of the unit

and side cover opening is common for drain

pipe,connecting pipe and wiring diagram.

the rubber stopple in the desired

drain direction.

out the pipe hole from the left side-

cover with the help or nipper/plier.

hole on right side-cover only if right

side is selected for water drain.

2

Edge part

1

14Air Conditioner

The Indoor Unit Installation

MOUNTING THE ANCHOR NUT AND

BOLT

• Prepare 4 suspension bolts.(Each bolts length

should be same.)

• Measure and mark the position for the

Suspension bolts and the piping hole.

• Drill the hole for anchor nut on the ceiling.

• Insert the nuts and washer onto the

suspension bolts for locking the suspension

bolts on the ceiling.

• Mount the suspension bolts to the anchor-nuts

firmly.

• Secure the hangers onto the Suspension bolts

(adjust level roughly.) using nuts, washers and

spring washers.

• Adjust a level with a level gauge on the

direction of left-right, back-forth by adjusting

suspension bolts.

• Adjust a level on the direction of top-bottom by

adjusting supension the unit will be

declined to the bottomside so as to drain well.

Suspension

bolts

Spring

washer

Hangen

Max.

12mm

Nut

DIM.

MODEL

VL

VK

VJ

Anchor nut

Ceiling

Nut

Suspension

bolts

Washer

A

1655

1255

855

B

320

320

320

ENGLISH

A

Suspension bolt

B

Washer

:Tighten the nut and bolt to prevent unit

falling.

Hanging bolt

(W3/8 or M10)

Nut

(W3/8 or M10)

Spring washer

(M10)

Flat washer for M10

(accessory)

Nut

(W3/8 or M10)

Flat washer for M10

(accessory)

DRILL A HOLE IN THE WALL.

• Drill the piping hole with a ø70mm hole core

the piping hole at either the right or

the left with the hole slightly slanted to the

outdoor side.

Indoor

WALL

Outdoor

Installation Manual 15

(

3

/

1

6

"

~

5

/

1

6

"

)

5

-

7

m

m

The Indoor Unit Installation

Hang the Indoor unit on suspension bolt as per following guidelines:

the indoor unit to sufficient height.

the suspended part of four suspension bolt in the four hangers provided on the side of

main body one by one.

the indoor unit till the hangers rest on their respective flat washer.

the level in the top down direction by adjusting the suspension bolts.

Inclined the indoor unit as per direction provided in the fig

:Installation Information For Declination

l declinationof the indoor unit is very important for the drainof the

convertible type air conditioner.

m thickness of the insulation for the connecting pipe shall be 10mm.

the Installation Plates are fixed to horizontal line, the indoor unit after installing will

be declined to the bottomside.

Front of view

• The unit must be horizontal or inclined at angle.

• The inclination should be less than or equal to 1°or in between 10 to 20mm inclined in drain

direction as shown in fig.

Ceiling

10~20mm

Side of view

• The unit must be declined to the bottomside of the unit when finished installation.

Ceiling

5~10mm

16Air Conditioner

The Indoor Unit Installation

1) Indoor unit installation

IBefore Installing,prepare Installation Plates

• 'Installation Plates' are attached at the bottom

of indoor unit.

Detach them by removing each 3 screws at

both sides.

• Detach 'Side Plate (R,L)' by removing each 2

screws on both sides.

• Pull the upper right and left side of 'Inlet Grille'

to the front, and it will stop at slightly tilted

position.

• Unhook the 'Inlet hanger' from the 'Hanger

screw' on the both left and right side.

• Detach the 'Inlet Grille' from the Indoor Unit.

ENGLISH

Side Plate

Install Plate

Inlet hanger

1) Installation on the ceiling

• Measure and mark the position for the

Suspension bolts and the piping hole.

• Drill the hole for anchor nut on the ceiling.

Inlet Grille

Hanger

screw

1)

1076

265

Before secure the Installation Plates,

select the bent direction of the

Installion Plate to the inside or the

outside according to the installation

circumstances.

Suspension

bolt

Center-line for the

piping hole

2)

1236

265

• Drill the piping hole on the wall slightly tilted

to the outdoor side using a ø70 hole-core

drill.

Indoor

WALL

Outdoor

5~7mm

Installation Manual 17

The Indoor Unit Installation

• Insert the nuts and washer onto the

suspension bolts for locking the suspension

bolts on the ceiling.

• Mount the suspension bolts to the anchor-

nuts firmly.

• Secure the Installation plates onto the

Suspension bolts (adjust level roughly.)

using nuts, washers and spring washers.

1)

Nut

Anchor nut

Ceiling

Washer

Suspension

bolts

Suspension

bolts

Spring

washer

Nut

Max.

12mm

Washer

2)

• Engage 2 hooks on the both left and right

side of the unit to the lower slot of

Installation Plates.

• Adjust a level with a level gauge on the

direction of left-right, back-forth by adjusting

suspension bolts.

• Move the hooks on the unit to the upper slot

of Installation the unit will be

declined to the bottomside so as to drain

well.

Lower slot

Level gauge

Suspension

bolt

Adjust a level

Installation plate

Upper slot

18Air Conditioner

The Indoor Unit Installation

CAUTION

ENGLISH

l declinationof the indoor unit is very important for the drainof

the convertible type air conditioner.

m thickness of the insulation for the connecting pipe shall be 7mm.

the Installation Plates are fixed to horizontal line, the indoor unit after

installing will be declined to the bottomside.

Front of view

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

installation.

Ceiling

Drain hose

Ceiling

Side of view

• The unit must be declined to the bottomside of the unit when finished installation.

Ceiling

Installation Manual 19

The Indoor Unit Installation

• Secure the unit to the Installation Plates

with four M8 bolts and washers.

• Before working, refer to "Connecting pipe

to Indoor Unit" on page 16.

• Hook up the Inlet Grille Hook to the cabinet.

• Hang the Inlet Hanger to the screw.

Inlet hanger

Hook

Cabinet Bottom

• Fit the projection hooks of the side plates to

the 'Side Panel' and the 'Front Panel' by

lifting it.

• Fasten the screws.

2

1

20Air Conditioner

The Indoor Unit Installation

2) Installation on the Wall

• Select and mark the position for fixing bolts

and piping hole.

Decide the position for fixing bolts slightly

tilted to the drain direction after considering

the direction of drain hose.

• Drill the hole for anchor nut on the wall.

m

o

1

0

7

6

ENGLISH

r

e

t

2

6

0

h

a

n

2

6

5

• Drill the piping hole on the wall slightly tilted

to the outdoor side using a ø70 hole-core

drill.

Wall

IndoorOutdoor

• Secure the 'Install Plate' onto the wall with

four anchor bolts, washers and spring

washers.

Spring

washer

Wall

Nut

Washer

Anchor nut

Less than

12mm

Before secure the Install Plates, select the

bent direction of the 'Install Plate' to the

inside or outside according to the

installation circumstances.

1

2

3

6

Installation Manual 21

5

~

7

m

m

The Indoor Unit Installation

Install the Indoor unit onto Installation Plate.

• Insert 2 hooks on the both left and right

side of the unit to the inner slot (wall side)

of the Installation Plate.

• Secure the unit to the Installation Plate with

four M8 bolts and washers.

Inner slot

• Before working, refer to "Connecting pipe

and cable to Indoor Unit" on page 16.

• Hook up the Inlet Grille Hook to the cabinet.

• Hang the Inlet Hanger to the screw.

2

1

• Fit the projection hooks of the side plates to

the 'Side Panel' and the 'Front Panel' by

lifting it.

• Fasten the screws.

22Air Conditioner

The Indoor Unit Installation

3) Installation on the floor

Installation of Mount Bracket.

• Select and mark the position for Mount

Brackets and the piping hole.

• Drill the hole for the anchor nut on the wall.

• Drill the piping hole using a ø70 hole-core

drill.

• Secure the Mount Brackets on the wall with

four M4 screws.

Install the indoor unit onto the Mount

Brackets.

• Engage the slot at the back of the unit with

Mount Bracket.

Slot

From the left wall

more than 760mm

ENGLISH

From the

right wall

more than 840mm

448mm

Floor mount

bracket

• Drill the piping hole with 70mm dia, hole

core drill.

• Piping hole should be slightly slant to the

outdoor side.

Wall

IndoorOutdoor

After Installing,reassemble detached parts.

• Hang the 'Inlet Grille' and hook the 'Inlet

Hanger' to the Hanger Screw.

• Assemble the 'Side Plates(R,L)' with 2

screws on both left and right side.

Slot

Wall

Floor mount

bracket

Install plate

Piping hole

Installation Manual 23

5

~

7

m

m

Remote Controller Installation

Wired Remote Controller Installation

DISASSEMBLING

Front case

T

h

• Separate the under plate from Remote control box.

e

l

o

w

e

r

p

a

r

t

Lever carefully

the box open

using a screw

driver, etc.

Remote control

box body

• Fix the under plate on the wall

Face of wall

Under plate

• Fix the cord clamps on the wall by

ø 3 tapping screws (accessory).

• Fix the remote control cord.

Cord clamp

(accessory)

Screw (accessory)

ELECTRICAL WIRING

(Main board)

CN REMO

Wire and make sure that terminal

numbers are matched on unit side and

remote controller side.

The maximum length of the cord is 100m.

If the length of the cord exceeds 50m,

2

use a wire size greater than 0.5mm.

HOW TO MOUNT ONTO A WALL

HOW TO INSERT BATTERIES

the battery cover from the remote

controller.

• Slide the cover according to the arrow direction.

the two batteries.

• Be sure that the (+) and (-) directions are

correct.

• Be sure that both batteries are new.

-attach the cover.

• Slide it back into position.

24Air Conditioner

• Do not use rechargeable

batteries, such batteries differ

from standard dry cells in

shape, dimensions, and

performance.

• Romove the batteries from the

remote controller if the air

conditioner is not going to be

used for some long time.

Wiring Connection

Wiring Connection

ENGLISH

• Open the control box cover and connect the Remote controller cord and Indoor power wires.

Indoor

power cord

Remote

controller

cord

Control box cover

[Air inlet side view]

Control box cover screw

36k Btu

(3Ø)

R

Terminals on the Outdoor Unit

STN1(L)2(N)3

POWER INPUT

Terminals on the Indoor Unit

1(L)2(N)345

30k Btu

(1Ø)

Terminals on the Outdoor Unit

1(L)2(N)1(L)2(N)34

Terminals on the Indoor Unit

1(L)2(N)345

POWER INPUT

24k Btu

(1Ø)

Terminals on the outdoor unit

1(L)2(N)1(L)2(N)34

Terminals on the Indoor Unit

1(L)2(N)345

Power Input

CAUTION

The power cord connected to the outdoor unit

should be complied with the following specifications

(This equipment shall be provided with a cord set complying

with the national regulation.)

Capacity

24k/30k

2

0

m

The connecting cable connected to the indoor and

outdoor unit should be complied with the following

specifications

(This equipment shall be provided with a

cord set complying with the national regulation.)

NORMAL

CROSS-SECTIONAL

AREA0.75mm

2

(12/18/24/30/36K)

2

0

m

m

G

N

/

Y

L

m

1 Phase

2.5mm

7

.

5

m

m

G

N

/

Y

L

G

N

/

Y

L

2

0

m

m

Capacity

36k

3 Phase

1.5mm

If the supply cord is damaged, it must be replaced by a special cord or assembly available from the manufacturer

or its service agent.

W

ARNING:

Make sure that the screws of the terminal are free from looseness.

Installation Manual 25

Wiring Connection

1. All wiring must comply with LOCAL REGULATIONS.

2. Select a power source that is capable of supplying the current required by the air conditioner.

3. Feed the power source to the unit via a distribution switch board designed for this purpose.

4. The terminal screws inside the control box may be loose due to vibration during transport.

Check the screws for loose connection.

(Running the air conditioner with loose connection can overload and damage electrical

components.)

5. Always ground the air conditioner with a grounding wire and connector to meet the LOCAL

REGULATION.

CAUTION:

• The circuit diagram is not subject to

change without notice.

• Be sure to connect wires according

to the wiring diagram.

• Connect the wires firmly, so that not

to be pulled out easily.

• Connect the wires according to

color codes by referring the wiring

diagram.

Capacity

24k Btu/h

30k Btu/h

36k Btu/h

1 Phase

20 A

30 A

3 Phase

Main power source

Air

Conditioner

Circuit Breaker

Use a 30A circuit breaker

or time delay fuse.

25 A

CAUTION:

The Power cord connected to the unit should be selected according to the following

specifications .

1. Remove the Cover control from the unit by

loosening a screw.

Connect the wires to the terminals on the

control board individually as following.

2. Secure the cable onto the control board with

the holder (clamper).

3. Refix the cover control to the original position

with the screw.

4. Use a recongnized circuit breaker between

the power source and the unit. A

disconnection device to adequately

disconnect all supply lines must be fitted.

Outdoor unit

Terminal block

Over 5mm

Holder for

power supply

cord

Power supply

cord

Connecting

cable

Cover control

Holder for

connecting

cable

26Air Conditioner

Connecting Pipes to the Indoor Unit

Connecting Pipes to the Indoor Unit

ENGLISH

Preparation of Piping

Main cause of gas leakage is defect in flaring

out correct flaring work in the

following procedure.

Copper

tube

90°

Slanted Uneven Rough

the pipes and the cable.

• Use the accessory piping kit or the pipes

purchased locally.

• Measure the distance between the indoor

and the outdoor unit.

• Cut the pipes a little longer than measured

distance.

•

Cut the cable 1.5m longer than the pipe

length.

Pipe

Reamer

Point down

removal

• Completely remove all burrs from the cut

cross section of pipe/tube.

• Put the end of the copper tube/pipe to

downward direction as you remove burrs in

order to avoid to let burrs drop in the tubing.

Flare nut

Copper tube

g nut on

• Remove flare nuts attached to indoor and

outdoor units, than put them on pipe/tube

having completed burr removal.

(Not possible to put them on after flaring work)

g work

• Carry out flaring work using dedicated

flaring tool for R-410A as shown below.

Outside diameter

1/4"

3/8"

1/2"

5/8"

3/4"

"A"

1.1~1.3 mm

1.5~1.7 mm

1.6~1.8 mm

1.6~1.8 mm

1.9~2.1 mm

Bar

"A"

Bar

Handle

Yoke

Cone

Copper pipe

Clamp handle

Red arrow mark

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

indicated dimension in the table above.

Smooth all round

Inside is shining without scratches

= Improper flaring =

• Compare the flared work with figure below.

• If flare is noted to be defective, cut off the

flared section and do flaring work again.

Even length

all round

Inclined

SurfaceCrackedUneven

damagedthickness

Installation Manual 27

Connecting Pipes to the Indoor Unit

the piping according to its routing.

Avoid bending and bending back the same

piping point more than three times.(This will

result in hardening the pipe.)

deforming the piping, align centers of

the union fitting of the indoor unit and the

piping, and tighten them firmly with

wrenches.

t pipe to the service valve or ball

valve which is located below the outdoor unit.

completing the piping connection, be

sure to check if there is gas leakage in indoor

and outdoor connection.

Liquid side

Indoor

unit

Outdoor

unit

Flare connection

Gas side

Flare connection

After completing the piping connection,

execute vacuum drying for the connecting

piping and the indoor unit.

The vacuum drying must be carried out

using the service ports of both the liquid and

gas side valves.

CAUTION:Use two wrenches and

tighten with regular torque.'

Outside diameter

mminch

Ø6,351/4

Ø9,523/8

Ø12,71/2

Ø15,885/8

Ø19,053/4

torque

kgf

.

m

1.8~2.5

3.4~4.2

5.5~6.6

6.3~8.2

9.9~12.1

Union

28Air Conditioner

Installation to Decorative Panel

Installation to Decorative Panel

ENGLISH

The decoration panel has its

installation direction.

Before installing the decoration panel,

always remove the paper template.

arily fix two decoration panel fixing screws (hexagon M5 screw) on the unit body.

(Tighten by amount 10mm in length.)

The fixing screws (hexagon M5 screw) are included the indoor unit box.

the air inlet grille from the decoration panel.(Remove the hook for the air inlet grille cord.)

the decoration panel key hole ( ) on the screws fixed in step above, and slide

the panel so that the screws reach the key hole edge.

ten completely two temporarily fixed screws and other two screws.(Total 4 screws)

t the louver motor connector and display connector.

tightening these screws, install the air inlet grille (including the air filter).

Piping side

Air conditioner unit

Control box cover

Decoration panel fixing screws

(hexagon M5 screws)

Temporally fitting at 2 places

(Tightening about 10mm)

Louver motor

Decoration panel

Display

Lead wire for

louver motor and

display

Decoration panel fixing screws

(Hexagon M5 screw)

Inlet Grille

CAUTION :Install

certainly the

decoration panel.

Cool air leakage

causes sweating.

Water drops fall.

Good exampleBad example

Air conditioner

unit

Ceiling

board

Air

Air conditioner unit

Cool air leakage

(no good)

Ceiling

board

Decoration

panel

Decoration panel

Fit the insulator (this part) and

be careful for cool air leakage

Installation Manual 29

Indoor Unit Drain Piping

CAUTION:Install certainly the decorative panel.

Water drops fall.

Cool air leakage causes sweating.

Good example

Air conditioner

unit

Ceiling

board

Decorative panel

Fit the insulator (this part) and

be careful for cool air leakage

Bad example

Air

Air conditioner unit

Cool air leakage

(no good)

Ceiling

board

Decorative

panel

Indoor Unit Drain Piping

• Drain piping must have down-slope (1/50 to

1/100):be sure not to provide up-and-down

slope to prevent reversal flow.

• During drain piping connection, be careful

not to exert extra force on the drain port on

the indoor unit.

• The outside diameter of the drain

connection on the indoor unit is 32mm.

Piping material:Polyvinyl chloride pipe VP-25

and pipe fittings

• Be sure to execute heat insulation on the

drain piping.

• Install the drain raising pipes at a right

angle to the indoor unit and no more than

300mm from the unit.

Pipe clamp

Indoor unit

Upward

routing

not allowed

Maintenance

drain port

300mm or less

1 -1.5m

7

0

0

o

r

l

e

s

s

Drain raising pipe

Clamp metal(attached)Drain hose(attached)

Heat insulation material:Polyethylene foam with thickness more than 8 mm.

Flexible drain hose

Flexible drain hose

30Air Conditioner

Indoor Unit Drain Piping

Drain test

ENGLISH

te type

The air conditioner uses a drain pump to drain water.

Use the following procedure to test the drain pump operation:

• Connect the main drain pipe to the exterior and leave

it provisionally until the test comes to an end.

Flexible drain hose

Feed water

(accessory)

• Feed water to the flexible drain hose and check the

Main

piping for leakage.

drain pipe

• Be sure to check the drain pump for normal

Drain

operating and noise when electrical wiring is

port

Glue the joint

Drain Pump

complete.

Drain hose connection

• When the test is complete, connect the flexible drain

Use the clip (accessory)

hose to the drain port on the indoor unit.

Drain pan

Flexible drain hose

type

1) Remove the Air Filter.

2) Check the drainage.

• Spray one or two glasses of water upon the

evaporator.

• Ensure that water flows drain hose of indoor unit

without any leakage.

Installation Manual 31

Indoor Unit Drain Piping

tible type

the air direction louvers up-and-down to

the position(horizontally) by hand.

To check the drainage.

a glass of water on the evaporator using

a kettle.

the water flows through the drain

hose of the indoor unit without any leakage

and goes out the drain exit.

Drain piping

drain hose should point downward for

easy drain flow.

Downward slope

not make drain piping like the following.

Do not raise

Accumulated

drain water

Air

Tip of drain hose

dipped in water

Water

leakage

Less than

50mm gap

Water

leakage

Water

leakage

Waving

Ditch

32Air Conditioner

Indoor Unit Drain Piping

Heat insulation

the heat insulation material for the refrigerant piping which has an excellent heat-resistance

(over 120°C).

tions in high humidity

circumstance:

This air conditioner has been tested

according to the "KSStandard Conditions

with Mist" and confirmed that there is not

any r, if it is operated for a

long time in high humid atmosphere (dew

point temperature:more than 23°C), water

drops are liable to this case, add

heat insulation material according to the

following procedure:

• Heat insulation material to

Adiabatic glass wool with thickness 10 to

20mm.

• Stick glass wool on all air conditioners that

are located in ceiling atmosphere.

Fastening band

(accessory)

ENGLISH

Refrigerant piping

Indoor unit

Thermal insulator

(accessory)

Forming the piping

Form the piping by wrapping the

connecting portion of the indoor

unit with insulation material and

secure it with two kinds of vinyl

tape.

• If you want to connect an additional drain

hose, the end of the drain outlet should be

routed above the the drain

hose appropriately.

Seal a small opening

around the pipings

with gum type sealer.

Drain hose

Taping

In cases where the outdoor unit is

installed below the indoor unit

perform the following.

the piping, drain hose and connecting

cable from down to up.

the tapped piping along the exterior

wall using saddle or equivalent.

Pipings

Plastic Band

Connecting

cable

Power supply

cord

Trap is required to prevent water from entering

into electrical parts.

Installation Manual 33

Indoor Unit Drain Piping

In cases where the Outdoor unit is

installed above the Indoor unit

perform the following.

the piping and connecting cable from

down to up.

the taped piping along the exterior

a trap to prevent water entering

the room.

the piping onto the wall by saddle or

equivalent.

Seal a small opening

around the pipings

with gum type sealer.

Trap

Settlement of outdoor unit

the outdoor unit with a bolt and

nut[ø10mm(0.39in)] tightly and horizontally on

a concrete or rigid mount.

installing on the wall, roof or rooftop,

anchor the mounting base securely with a

nail or wire assuming the influence of wind

and earthquake.

the vibration of the unit is transmitted to the

hose, secure the unit with an anti-vibration

rubber.

34Air Conditioner

Test running

Test running

ENGLISH

TIONS IN TEST RUNNING

• The initial power supply must provide at least 90% of the rated voltage.

Otherwise, the air conditioner should not be operated.

For test run,carry out the cooling operation firstly even during heating

heating operation is carried out firstly,it leads to the trouble

of attention must be paid.

Carry out the test run more than 5 minutes without fail.

(Test run will be cancelled 18 minutes later automatically)

• The test run is started by pressing the room temperature checking button and down timer

button for 3 seconds at the same time.

• To cancel the test run, press any button.

CAUTION

CHECK THE FOLLOWING ITEMS WHEN INSTALLATION IS COMPLETE

• After completing work, be sure to measure and record trial run properties, and store measured

data, etc.

• Measuring items are room temperature, outside temperature, suction temperature, blow out

temperature, wind velocity, wind volume, voltage, current, presence of abnormal vibration and

noise, operating pressure, piping temperature, compressive pressure.

• As to the structure and appearance, check following items.

Is the circulation of air adequate?

Is the draining smooth?

Is the heat insulation complete

(refrigerant and drain piping)?

Is there any leakage of refrigerant?

Is the remote controller switch operated?

Is there any faulty wiring?

Are not terminal screws loosened?

M4......118N

.

cm{12kgf

.

cm}

M6......245N

.

cm{25kgf

.

cm}

M5......196N

.

cm{20kgf

.

cm}

M8......588N

.

cm{60kgf

.

cm}

tion of power supply

t the power supply cord to the independent power supply.

• Circuit breaker is required.

e the unit for fifteen minutes or more.

tion of the performance

e the temperature of the

intake and discharge air.

the difference between the

intake temperature and the discharge

one is more than 8°C (Cooling) or

reversely (Heating).

Thermometer

Installation Manual 35

Test running

CAUTIO

N:After the confirmation of the above conditions,prepare the wiring

as follows:

1) Never fail to have an individual power specialized for the air conditioner.

As for the method of wiring,be guided by the circuit diagram pasted on

the inside of control box cover.

2) Provide a circuit breaker switch between power source and the unit.

3) The screw which fasten the wiring in the casing of electrical fittings are

liable to come loose from vibrations to which the unit is subjected

during the course of them and make sure that

they are all tightly fastened.(If they are loose,it could give rise to burn-

out of the wires.)

4) Specification of power source

5) Confirm that electrical capacity is sufficient.

6) Be sure that the starting voltage is maintained at more than 90 percent

of the rated voltage marked on the name plate.

7) Confirm that the cable thickness is as specified in the power sources

specification.

(Particularly note the relation between cable length and thickness.)

8) Never fail to equip a leakage breaker where it is wet or moist.

9) The following troubles would be caused by voltage drop-down.

• Vibration of a magnetic switch, damage on the contact point there of, fuse

breaking, disturbance to the normal function of a overload protection device.

• Proper starting power is not given to the compressor.

10) Use only 1 remote-controller contained in the Cassette type indoor unit,

when you combine to use both cassette type indoor unit and different

kind of indoor unit.

After setting the ESP value in the Duct Type Indoor Unit,the main

power turns off and then remove the remote controller.

HAND OVER

Teach the customer the operation and maintenance procedures, using the operation manual

(air filter cleaning, temperature control, etc.).

36Air Conditioner

Optional Operation

Optional Operation

ENGLISH

Thermistor System

(1) Open the rear cover of the wired remote-controller to set the mode.

(2) Select one of three selectable modes as follows.

• Position 1:The room temperature is controlled by the thermistor of the main body.

• Position 2:The room themperature is controlled by the thermistor of the wired remote-

controller, control the temperature according to the position of wired remote-

controller.

• Position 3:The room temperature is controlled by lower temperature between the

temperature of main body and of remote-controller sensor.

(3) Move the slide switch to set position.

Room Temp. sensor

Slide switch for 2 Thermistor

Position 2

Position 1

Position 3

REMO

MAIN

2TH

Slide switch for ceiling height

(4) Close the rear cover and check if it works normally.

CAUTIO

N:

• Select the position after counselling with a customer.

• In case of cooling mode,room temperature is controlled by the main body sensor.

• To control the room temperature by a wired remote controller,install controller(room

) to sense the temperature more accurately.

• Manufactured in the position 3.

Installation Manual 37

Optional Operation

ing air volume to the height of ceiling (Cassette type)

You can choose the RPM(or air volume) of indoor motor according to the height of ceiling to

supply the comfortable atmosphere to consumers.

Procedure

the selectable position in the table after measuring the height of ceiling.

Ceiling height

more than 3.3m

2.7~3.3m

less than 2.7m

Mode of slide switch

High Ceiling

Standard

Low Ceiling

Change of air volume

Increasing

-

Decreasing

Remark

Manufactured in

standard mode

the case of changing the height as "high" or "low", open the rear cover of the wired remote-

controller.

the slide switch to the set position.

Slide switch for 2 Thermistor

Low ceiling

Standard

(Default)

High Ceiling

Lo

STAND

Hi

Slide switch for ceiling height

the rear cover and check if it works normally.

38Air Conditioner

Optional Operation

3.E.S.P.(External Static Pressure) Setting (Duct type)

(1) Open the rear cover of the wired remote-controller to set the mode.

(2) Select one of three selectable modes as follows.

IWithout Zone System

on V-H, F-H:

• This position sets the maximum E.S.P as a default set.

on V-L:

• This position sets the minimum E.S.P as a default set.

IWith Zone System

on V-H:

• Maximum E.S.P setting & Fan speed is varied according to the state of dampers by micom.

on F-H:

• Maximum E.S.P setting & Fan speed doesn't vary according to the opening & Closing of

dampers.

on V-L:

• Minimum E.S.P setting & Fan speed is varied according to the state of dampers by micom.

* Maximum

Minimum

:24k-6mmAq

:0mmAq

ENGLISH

(3) Move the slide switch to set position.

V-L

F-H

V-H

Slide switch for ceiling height

(4) Close the rear cover and check if it works normally.

• Select the position after checking duct work and E.S.P of the unit.

• Maunfactured in the position F-H.

CAUTIO

N:

Installation Manual 39

Optional Operation

to Set E.S.P?

Procedure of RPM change:

Ex) External Static pressure is 6mmAq for 36k.

• To protect the unit, compressor is designed to be off during g.

1

Push the "On/Off" button.

The unit will start.

AUTO SWINGOPERATIONSET TEMP

Room Temp

FAN SPEED

HI

MED

LO

SUB FUNCTION

Time

OnOff

Set

01

AUTOHeaterPreheat

JETDefrostHumidify

FilterOut door

ZONE

1234

17192123

Timer

Operation unit

030507

Program set

09111315

2

Push the "Timer" and "Wind" button simultaneously for more then 3 seconds.

Timer

AUTO SWINGOPERATIONSET TEMP

Room Temp

FAN SPEED

HI

MED

LO

SUB FUNCTION

Time

OnOff

Set

01

AUTOHeaterPreheat

JETDefrost

Humidify

FilterOut door

ZONE

1234

17192123

Timer

Operation unit

030507

Program set

09111315

3

Push the "Up" of "Down" button for E.S.P adjustment.

And, adjust the number which you want.(In this example, the number is "220".Refer to the

table 1 on the next page.)

AUTO SWINGOPERATIONSET TEMP

Room Temp

FAN SPEED

HI

MED

LO

SUB FUNCTION

Time

OnOff

Set

01

AUTOHeaterPreheat

JETDefrost

Humidify

FilterOut door

ZONE

1234

17192123

Timer

Operation unit

030507

Program set

09111315

Note:The range of selection is from 1~, the display is two Digit only.

If the range selection is above 100 then the third digit will appear in the screen as shown.

4

Shift the fan speed mode by pressing the fan speed button.

And then, Adjust numbers of next steps by repeating the stage 3.

(In this example, the numbers are "235" and "243" respectly)

5

Push the "Timer" and "Wind" button simultaneously for more than 3 seconds.

Then, Wind Data is memorized by the EEPROM of the main PCB.

AUTO SWINGOPERATIONSET TEMP

Room Temp

FAN SPEED

HI

MED

LO

SUB FUNCTION

Timer

OnOff

Set

01

Time

Timer

Operation unit

030507

AUTOHeaterPreheat

JETDefrostHumidify

FilterOut door

ZONE

1234

17192123

Program set

09111315

40Air Conditioner

Optional Operation

[Table.1]

Static Pressure(mmAq)

Model Name

24 k

Step

High

Med

Low

High

30 k

Med

Low

High

36 k

Med

Low

CMM(CFM)

18(636)

16.5(583)

14(494)

26.5(936)

23(812)

20(706)

32(1130)

29(1024)

26.5(936)

220

235

250

153

173

190

230

240

245

205

230

240

150

173

190

230

238

245

190

220

235

150

175

190

225

237

243

50

200

230

148

175

190

220

235

243

02468

Setting Value

1

100

210

130

170

190

150

230

240

1

155

190

1

220

240

10121415

ENGLISH

Note

: sure to set the value refering table cted set value will cause mal-

function.

1 is based at ing to the fluctuation of voltage,air flow rate

varies.

Installation Manual 41

Optional Operation

conditioners should not be installed in areas where corrosive gases, such as acid or alkaline

gas, are produced.

not install the product where it could be exposed to sea wind (salty wind) can

result corrosion on the ion, particularly on the condenser and evaporator fins,

could cause product malfunc-tion or inefficient performance.

outdoor unit is installed close to the seaside, it should avoid direct exposure to the sea wind.

Otherwise it needs additional anticorrosion treatment on the heat exchanger.

Selecting the location(Outdoor Unit)

1) If the outdoor unit is to be installed close to the seaside, direct exposure to the sea wind

should be l the outdoor unit on the opposite side of the sea wind direction.

Sea windSea wind

2) In case, to install the outdoor unit on the seaside, set up a windbreak not to be exposed to the

sea wind.

Windbreak

• It should be strong enough like concrete

to prevent the sea wind from the sea.

• The height and width should be more

than 150% of the outdoor unit.

Sea wind

• It should be keep more than 70 cm of

space between outdoor unit and the

windbreak for easy air flow.

3) Select a well-drained place.

❈ you can’t meet above guide line in the seaside installation, please contact LG

Electronics for the additional anticorrosion treatment.

ic ( more than once/year ) cleaning of the dust or salt particles stuck on the

heat exchanger by using water

42Air Conditioner