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<1. Attaching the ferrite core>
To Indoor unit
Power supply
terminal block
terminal block
1
2
3
1
2
3
L
N
Earth screw
Earth screw
Banding band
Connecting wire
Pipe valve
Power supply wire
fixing plate
<2. Attaching the clamp filter>
Attach the supplied clamp filter to the lower outdoor fan motor lead wire.
• Make sure that the claw of the clamp filter is securely locked.
• Pass the supplied banding band through the upper hole of the clamp filter to clamp it together with the fan motor
lead wire.
• The fan motor lead wires are connected to connectors CN301 and CN300 on the P.C. board of the outdoor unit.
EN-33
* Clamp the indoor/outdoor connecting wire c, earth
wire, and ferrite core with the supplied banding band.
Stripping length power cord and connecting wire
L N
10
L N
1 2 3
10
10
10
170
160
40
110
Earth line
(mm)
Connecting wire
Power supply wire
CN301
CN300
Fan motor lead wire
(Lower side)
Banding band
Clamp filter
- 17 -
8
EARTHING
Connect the earth line properly following applicable technical standards.
Connecting the earth line is essential to preventing electric shock and to reducing noise and electrical charges on the
10
outdoor unit surface due to the high-frequency wave generated by the frequency converter (inverter) in the outdoor
unit.
If you touch the charged outdoor unit without an earth line, you may experience an electric shock.
50
9
FINISHING
Earth line
After the refrigerant pipe, inter-unit wires, and drain pipe have been connected, cover them with finishing tape and
clamp them to the wall with off-the-shelf support brackets or their equivalent.
Keep the power wires and indoor/outdoor connecting wires off the valve on the gas side or pipes that have no heat
insulator.
10
TEST RUN
• Turn on the leakage breaker at least 12 hours before starting a test run to protect the compressor during
startup.
To protect the compressor, power is supplied from the 220-240 VAC input to the unit to preheat the compressor.
• Check the following before starting a test run:
• That all pipes are connected securely without leaks.
• That the valve is open.
If the compressor is operated with the valve closed, the outdoor unit will become overpressurized, which may
damage the compressor or other components.
If there is a leak at a connection, air can be sucked in and the internal pressure further increases, which may cause
a burst or injury.
• Operate the air conditioner in the correct procedure as specified in the Owner's Manual.
11
ANNUAL MAINTENANCE
• For an air conditioning system that is operated on a regular basis, cleaning and maintenance of the indoor/outdoor
units are strongly recommended.
As a general rule, if an indoor unit is operated for about 8 hours daily, the indoor/outdoor units will need to be
cleaned at least once every 3 months. This cleaning and maintenance should be carried out by a qualified service
person.
Failure to clean the indoor/outdoor units regularly will result in poor performance, icing, water leaking and even
compressor failure.
EN-34
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