Air Conditioner Service Manual
4).If the piping is installed to the right, the pipes,
power cable and drain hose must be lagged
and secured onto the rear of the unit with a
pipe connection.
z
Insert the pipe connection into the relative
slot.
z
Press to join the pipe connection to the
base.
9
.2.8 Electronic connections
1. Take the cover away.
2. Connect the cable wires to the terminal
board using the same numbering as in the
indoor unit.
3. For the electrical connections, see the wiring
diagram on the back of the cover
4. Fasten the cables with a cable-clamp.
5. An efficient earth connection must be
ensured.
6. Replace the covers.
9
.2.9 Connecting the pipe
Screw the flare nuts to the outdoor unit
coupling with the same tightening procedures
described for the indoor unit.
Note: If the tightening torque is not sufficient,
there will probably be some leakage. With
excessive tightening torque there will also be
some leakage, as the flange could be
damaged.
9
.2.6 Bleeding
Air and humidity left inside the refrigerant circuit
can cause compressor malfunction. After having
connected the indoor and outdoor units, bleed
the air and humidity from the refrigerant circuit
by using a vacuum pump.
The air and humidity left inside the refrigerant
circulation can cause compressor
malfunction. After having connected the
indoor and outdoor units, bleed the air and
humidity from the refrigerant circulation using
a vacuum pump.
Wiring diagram on the back of the
cover
Screw
Remove the upper cover
Outdoor unit
connection pipes
flare nuts
liquid tap
gas tap
indoor unit
protection caps
Liquid valve
gas valve
service port nut
tap
vacuum pump
s ervice port
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