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■

Connect the wires to the terminals on the control board individually according to the outdoor unit connection.
• Ensure that the color of the wires of outdoor unit and the terminal No. are the same as those of indoor unit

respectively

■

18K Btu

1) Arrange 2 power cables on the control panel.
2) First, fasten the steel clamp with a screw to the inner boss of control panel.
3) For the cooling model, fix the other side of the clamp with a screw strongly.

For the heat pump model, put the 0.75mm

2

cable(thinner cable) on the clamp and tighten it with a plastic

clamp to the other boss of the control panel.

4) In Australia, the length of power supply cord measured from the entry of the power supply cord to the middle

of live pin on the power plug should be over 1.8m.

POWER
INPUT

1(L) 2(N)

4(N)

5

6

7

8

3(L)

4(N)

5

6

7

3(L)

Terminals on the indoor unit

Terminals on the outdoor unit

 

connected to the outdoor unit should be 

complied with the following specifications (Rubber 
insulation, type H05RN-F approved by HAR or SAA).

If the supply cord is damaged, it must be replaced by a special cord or assembly availible from the manufacturer 
of its service agent.

The connecting cable connected to the indoor and outdoor 
unit should be complied with the following specifications 
(Rubber insulation, type H05RN-F approved by HAR or SAA).

20mm

GN/YL

20mm

GN/YL

–17–

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

–18–

Outdoor

Indoor

Control terminal board

Control box

Control box cover

(On which the Electric

Wiring Connection is put)

A view

Remote
control cord

Connection
cord between 
the indoor unit
and the 
outdoor unit

Cord clamper

1

1

Main 

power source

Switch box

Circuit Breaker

Use a 25A(18K),   
circuit breaker or time 
delay fuse.

Cover control

Terminal board

• Remove the control box cover for electrical con-

nection between the indoor and outdoor
unit.(Remove two screws 

➀

.)

• Use the cord clamper to fix the cord.

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

• All wiring must comply with local requirements.
• Select a power source that is capable of supply-

ing the current required by the air conditioner.

• Use a recognized circuit breaker 25A(18K),

between the power source and the unit. A discon-
nection device to adequately disconnect all supply
lines must be fitted.

• Remove the control cover for wiring connection.

• Use the cord clamper to fix the cord.

• Earthing work

Connect the cable of diameter 1.6mm

2

or more to

the earthing terminal provided in the control box
and do earthing.

¡

¡

ÿ

–19–

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

■

Use the accessory piping kit or the pipes pur-
chased locally.

■

Measure the distance between the indoor and
the outdoor unit.

■

Cut the pipes a little longer than measured dis-
tance.

■

Cut the cable 1.5m longer than the pipe length.

■

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.

■

Remove flare nuts attached to indoor and out-
door units, than put them on pipe/tube having
completed burr removal.
(Not possible to put them on after flaring work)

■

Carry out flaring work using flaring tool as shown
below.

Firmly hold copper tube in a bar(or die) as indicat-
ed dimension in the table above.

■

Compare the flared work with figure.

■

If flare is noted to be defective, cut off the flared
section and do flaring work again.

Copper

tube

90

°

Slanted   Uneven  Rough

Pipe

Reamer

Point down

Flare nut

Copper tube

Bar

Copper pipe

Clamp handle

Red arrow mark

Cone

Yoke

Handle

Bar

"A"

Inclined

Inside is shining without scratches.

Smooth all round

Even length

all round

Surface

damaged

Cracked Uneven

thickness

= Improper flaring =

Outside Diameter

" A "

Gas

Liquid

Gas

Liquid

18K BTU

5/8"

3/8"

0.8~1.0 0.5~0.8

Capacity

–20–

1. Form the piping according to its routing. Avoid

bending and bending back the same piping point
more than three times. (This will result in hard-
ening the pipe.)

2. After deforming the piping, align centers of the

union fitting of the indoor unit and the piping, and
tighten them firmly with wrenches.

3. Connect pipe to the service valve or ball valve

which is located below the outdoor unit.

4. After completing the piping connection, be sure

to check if there is gas leakage in indoor and
outdoor 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.

Outdoor

unit

Liquid side

Flare connection

Flare connection

Gas side

Indoor 

unit

Union

Model

Liquid side piping

Gas side piping

LB-D1860HL

3/8"

5/8"

Pipe size

Torque

3/8"

4.2kg.m

1/2"

5.5kg.m

5/8"

6.6kg.m

3/4"

6.6kg.m

Liquid Side 

Gas Side