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OUTDOOR UNIT

Please mount the outdoor unit on stable ground
to prevent vibration and increase of noise level.

Decide the location for piping after sorting out
the different types of pipe available.

Please face this side (suction side)
of the unit to the wall

Please remove
the cover for
wire connection.

Procedure to remove the cover of

wiring terminals

Remove the screw (1
piece).

Hold the projected part at
the lower left of the cover
and push the cover
upwards to remove it.

To close the cover, insert
the upper part of the
cover into the body of
outdoor unit, then be sure
that the hook below the
cover is plugged in before
screwing.

Hook

   Removal Of Air From The Pipe And Gas Leakage Inspection

   Preparation of Pipe

1

Use a pipe cutter to cut the copper pipe.

Jagged edge will cause leakage.

Point the side to be trimmed downwards during trimming to prevent copper chips from
entering the pipe.

Before flaring, please put
on the hexagon screw cap.

Spanner

Torque
wrench

Hexagon 
screw nut

   Pipe Connection

2

Please be careful when bending the copper pipe.

Applied frozen grease to the connection points and then screw in manually. After that, use
a torque wrench to tighten the connection.

INST

ALLA

TION OF COOLANT PIPES AND AIR REMO

VA

L

Procedures of using Vacuum Pump for Air Removal

3

AIR REMO

V

A

L

CAUTION

!

Lo

Hi

Meter showing pressure

Manifold valve

Vacuum pump

Charge
hose

When pumping starts, slightly loosen
the flare nut to check of air sucked in.
Then tighten the flare nut.

When the meter reaches –101KPa (–76cmHg)
during pumping, fully tighten the shuttle.

As shown in figure on the right, remove
the cap of valve head and valve core
and then connect them to the vacuum
pump and  sub-division valve.

Fully tighten the “Hi” shuttle of the sub-
division valve and completely unscrew
the “Lo” shuttle. Run the vacuum pump
for about 10–15 minutes, then completely
tighten the “Lo” shuttle and switch off
the vacuum pump.

2

Completely unscrew the spindle of the
service valve (at 2 places) in anti-
clockwise direction to allow the flow of
coolant (using Allen key).

3

Remove the connection pipe and tighten
the cap of valve head. The task is then
completed.

4

Gas Leakage Inspection

Please use gas leakage detector to
check if leakage occurs at the con-
nection of hexagon screw nut as shown
on the right.

If gas leakage occurs, further tighten
the connection to stop leakage.

The body of
service valve

Cap of
valve core

Allen key

Cap of valve head

Cap of valve head

A

Mould

Mould

Copper pipe

Copper pipe

Trimming tool

1

<

IA539: A 

>

FINAL ST

A

GE OF INST

ALLA

TION

Insulation And Maintenance Of Pipe Connection

1

The connected terminals should be completely sealed with
heat insulator and then tied up with rubber strap.

Please tie the pipe and power line together with vinyl tape as
shown in the figure showing the installation of Indoor and
Outdoor units. Then fix their position with holders.

To enchance the heat insulation and to prevent water
condensation, please cover the outdoor part of the drain hose
and pipe with insulation pipe.

Completely seal any gap with putty.

  Installation Of Remote Controller

2

  Power Source And Operation Test

3

The remote controller can be placed in its holder which is
fixed on wall or beam.

To operate the remote controller at its holder, please ensure
that the unit can receive signal transmitted from the controller
at the place where the holder is to be fixed. The unit will beep
when signal is received from the remote controller. The signal
transmission is weaken by the fluorescent light. Therefore,
during the installation of the remote control holder, please
switch on the light, even during day time, to determine the
mounting location of the holder.

Power Source

CAUTION

!

Please use a new socket. Accident may occur due to the
use of old socket because of poor contact.

Please plug in and then remove the plug for 2 – 3 times.
This is to ensure that the plug is completely plugged into
the socket.

Keep additional length for the power cord and do not render
the plug under external force as this may cause poor
contact.

Do not fix the power cord with U-shape nail.

Operation Test

Please ensure that the air conditioner is in normal operating
condition during the operation test.

Explain to your customer the proper operation procedures
as described in the user’s manual.

WARNING

If you cannot attach the side cover
due to the connecting cord, press the
connecting cord in direction to the
front panel to fix it.

Be sure that the hooks of the side
cover is fixed in certainly. Otherwise
water leakage may occur and this
causes short circuit or faults.

The naked part of the wire core should be 10 mm and fix it to the terminal tightly. Then
try to pull the individual wire to check if the contact is tight. Improper insertion may burn
the terminal.

Be sure to use only power cables approved from the authorities in your country. For
example in Germany: Cable type: NYM 3x2.0mm

2

.

Please refer to the installation manual for wire connection to the terminals of the units.
The cabling must meet the standards of electrical installation.

There is an AC voltage drop between the L and N terminals if power is on. Therefore,
before servicing, be sure to remove the plug from the AC outlet or switch off the main
switch.

THIS APPLIANCE MUST BE EARTHED.

Procedures of Wiring

Wiring of The Outdoor Unit

Please remove the side cover for wire connection.

!

WARNING

!

CONNECTION OF PO

WER CORD

WARNING

!

Connecting cord

Indoor

Unit

Outdoor

Unit

GRN + YEL

GRN + YEL

Strip wires

L

N

B

A

B

A

Indoor Unit

Line Cord

AC 220-240V

Outdoor Unit

Connecting Cord

d

Sleeve of
protection pipe

Putty

Putty

Insulation material for pipe connection

Pull the cover at 

1

 and 

2

 in

the directions as shown by
arrows to remove the low
cover.

Wiring Of The Indoor Unit

For wire connection of the Indoor unit, you need to remove Low Cover and Indicator Cover.

Remote

Controller

Holder for
Remote Controller

Screw (2 pieces)

The controller should
be insert from top into
bottom side of the
holder as shown in
figure below.

Connection wire
is put under here

Side cover

A

B

Connection wire

Screw for earth line

TIME DELAY FUSE USAGE

Outer

Diameter (ø)

6.35 (1/4")

9.52 (3/8")

Imperial

flaring tool

0.8  – 1.5

1.0  – 2.0

Rigid flaring

tool

0  – 0.5

0  – 1.0

A (mm)

After unscrew and remove
electrical plate, unscrew the
terminal band to put connecting
cords. Fix back the band screw
and electrical plate.

TEMPORARY
SWITCH

1

Indicator 
Cover

Screw

Low cover

Remove Screw and Indicator Cover

TE

MP

OR

AR

Y

SW

IT

CH

2

TEMPORAR

Y

SWITCH

6

5

Attach Indicator Cover and tightened screw 
(do not tightened too hard as the screw hole
at front cover might be broken)

Attach back Low Cover

TEMPORARY
SWITCH

7

3

4

RAS-S10CY, RAS-5115CY

Outer

Diameter (ø)

6.35 (1/4")

12.7 (1/2")

Imperial

flaring tool

0.8  – 1.5

1.0  – 2.0

Rigid flaring

tool

0  – 0.5

0  – 1.0

A (mm)

RAS-S13CY

Valve head cap

Valve core cap

Torque N.m

(kgf 

 cm)

13.7  – 18.6 (140 – 190)

34.3  – 44.1 (350 – 450)

19.6  – 24.5 (200 – 250)

12.3  – 15.7 (125 – 160)

Small
dia. side

Big dia.
side

Outer

dia. of pipe

9.52 (3/8")

6.35 (1/4")

RAS-S10CY, RAS-5115CY

Valve head cap

Valve core cap

Torque N.m

(kgf 

 cm)

13.7  – 18.6 (140 – 190)

44.1  – 53.9 (450 – 550)

19.6  – 24.5 (200 – 250)

12.3  – 15.7 (125 – 160)

Small
dia. side

Big dia.
side

Outer

dia. of pipe

12.7 (1/2")

6.35 (1/4")

RAS-S13CY

10A

15A

RAC-S10CY, RAC-5115CY

RAC-S13CY

Please fix back the electrical
plate after wiring work is
complete. Otherwise if short
circuit occur it may cause
unit burn.

WARNING

!

CABLE SIZE ød

1-25mm

1-50mm

RAS-S10CY, RAS-5115CY

RAS-S13CY

INS RAS/RAC-S10CY (E2)

1/6/09, 9:25

1

Black

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