TCL Air Conditioner Service Manual
heat insulation , or it will condense dew, as well
as the connections of the indoor unit.
The declivity of the drain pipe downwards
should not be over 1/100, and no winding and
bending.
The total length of the drain pipe when pulled
out traversely shall not exceed 20m , when the
pipe is over long, a prop stand must be installed
every 1.5 to 2m to prevent winding.
Refer to the following figures ab
out the
installation of the pipes.
Do not impose any pressure on the connection
part of the drainage pipe.
9.2.8 Electronic connections of outdoor unit
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 cove
r
4.
Fasten the cables with a cable-clamp.
5. An efficient earth connection must be ensured.
6. R
eplace the covers.
Wiring diagram on the back of the cover
Screw
Remove the upper
cover
Outdoor unit
9.2.9 Connecting the pipe of outdoor unit
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.
9.2.10 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.
Notice
According to installation conditions, overlarge
wrenched Torch will destroy the nut. (Unit. N.cm)
Pipe
Tightening torque(N.M)
1/4’’ 15-20
3/8’’ 31-35
1/2’’ 35-45
5/8’’ 75-80
connection pipes
flare nuts
liquid tap
gas tap
indoor unit
protection caps
Liquid valve
gas valve
service port nut
tap
vacuum pump
service port
VP 30
Support
Be nd
Up a n d Do w n
Fold
As long as possib le a bou t (10 mm )
Le an Downward
over 1/10 0
1.5m~2
L ea n D ow nw ar d ove r 1/100
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