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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.
●
Open the side plate by unscrewing the screws
as shown below.
Please face this side (suction
side) of the unit to the wall.
Please remove side cover when
connecting the connecting cord.
WARNING
●
THIS APPLIANCE MUST BE EARTHED.
Procedures of Wiring
Connecting cord
Indoor
Unit
GRN + YEL
Strip wires
Outdoor
Unit
GRN + YEL
WARNING
The naked part of the wire core should be 10 mm and À x 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
●
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.
1
Insulation And Maintenance Of Pipe Connection
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 À gure showing the installation of Indoor and
Outdoor units. Then À x 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.
●
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IA667: B
1
Preparation of Pipe
●
Use a pipe cutter to cut the copper pipe.
CAUTION
Jagged edge will cause leakage.
●
Point the side to be trimmed downwards during trimming to prevent copper chips from
●
entering the pipe.
●
Before Á aring, please put on the hexagon screw cap.
Outer
Diameter (ø)
Imperial Á aring tool
6.35 (1/4")
0.8 – 1.5
9.52 (3/8")
1.0 – 2.0
2
Pipe Connection
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.
Outer dia. of pipe
Small dia. side
Big dia. side
Valve head cap
Valve core cap
Wiring Of The Indoor Unit
For wire connection of the Indoor unit, you need to remove Low Cover and Indicator Cover.
●
2
.
2
Installation Of Remote Controller
The remote controller can be placed in its holder which is
●
À xed 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 À xed. The unit will beep
when signal is received from the remote controller. The signal
transmission is weaken by the Á uorescent 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.
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.
3
A (mm)
Rigid Á aring tool
0 – 0.5
0 – 1.0
Torque N.m
(kgf
cm)
Please use gas leakage detector to check if leakage occurs at
●
the connection of hexagon screw nut as shown on the right.
6.35 (1/4")
13.7 – 18.6 (140 – 190)
If gas leakage occurs, further tighten the connection to stop
34.3 – 44.1 (350 – 450)
9.52 (3/8")
leakage.
19.6 – 24.5 (200 – 250)
12.3 – 15.7 (125 – 160)
Wiring of The Outdoor Unit
Please remove the side cover for wire connection.
●
WARNING
3
Power Source And Operation Test
Power Source
●
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 À x the power cord with U-shape nail.
Removal Of Air From The Pipe And Gas Leakage Inspection
Procedures of using Vacuum Pump for Air Removal
As shown in À gure on the right, remove
the cap of valve head and valve core
1
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
2
for about 10–15 minutes, then completely
tighten the "Lo" shuttle and switch off the
vacuum pump.
Completely unscrew the spindle of
the service valve (at 2 places) in anti-
3
clockwise direction to allow the Á ow of
coolant (using Allen key).
Remove the connection pipe and tighten
4
the cap of valve head. The task is then
completed.
Gas Leakage Inspection
3
Pull the cover at
●
the directions as shown by arrows
to remove the low cover.
4
WARNING
●
Please À x back the electrical
plate after wiring work is
complete. Otherwise if short
circuit occur it may cause
unit burn.
If you cannot attach the side cover
●
due to the connecting cord, press
the connecting cord in direction to
the front panel to À x it.
Be sure that the hooks of the side
●
cover is À xed in certainly. Otherwise
water leakage may occur and this
causes short circuit or faults.
CAUTION
1
and
2
in
A B
A B
After unscrew and remove
electrical plate, unscrew the
terminal band to put connecting
cords. Fix back the band screw
and electrical plate.
Earth terminal
A B
TIME DELAY FUSE USAGE
10A RAC-E10CZ
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