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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

■

42K BTU

• Cooling and Heating Type

• Cooling only Type

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.

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

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

NORMAL
CROSS-SECTIONAL
AREA 8.4mm

2

NORMAL
CROSS-SECTIONAL
AREA 0.75mm

2

20mm

GN/YL

–19–

POWER INPUT

Terminals on the indoor unit

1

2

4

5

3

Terminals on the outdoor unit

1

2

4

5

3

Terminals on the indoor unit

1

2

4

5

3

Terminals on the outdoor unit

1

2

4

5

3

1(L)

2(N)

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

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

–20–

Outdoor

Indoor

Control terminal board

Control box

Control box cover

(On which the Electric

Wiring Connection is put)

Main terminal board

Control terminal board

Cover control

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

• 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 35A between the

power source and the unit. A disconnection
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.

❈

–21–

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

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 =

■

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.

Outside Diameter

" A "

Gas

Liquid

Gas

Liquid

42K BTU

3/4"

3/8"

1.0~1.3 0.5~0.8

Capacity

–22–

Outdoor

unit

Liquid side

Flare connection

Flare connection

Gas side

Indoor 

unit

Union

1. Form the piping according to its routing. Avoid bend-

ing and bending back the same piping point more
than three times. (This will result in hardening 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 vacu-
um drying for the connecting piping and the indoor
unit.
The vacuum drying must be carried out using the ser-
vice ports of both the liquid and gas side valves.

Model

Liquid side piping

Gas side piping

42K BTU

3/8"

3/4"

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