Si001080
Removal of Compressor
Removal Procedure
33
Before working, make sure
that the refrigerant gas is
empty in the circuit.
Be sure to apply nitrogen
replacement when heating
up the brazed part.
Warning
Be careful not to get yourself
burnt with the pipes and
other parts that are heated by
the gas brazing machine.
Warning
If the refrigerant gas leaks
during work, ventilate the
room. (If the refrigerant gas
is exposed to flames, toxic
gas may be generated.)
Warning
Since it may happen that the
refrigerant oil in the
compressor catches fire,
prepare wet cloth so as to
extinguish fire immediately.
Caution
From the viewpoint of global
environment protection, do
not discharge the refrigerant
gas in the atmosphere. Make
sure to collect all the
refrigerant gas.
Cautions for restoration
1. Restore the piping by non-
oxidation brazing.
2. It is required to prevent the
carbonization of the oil
inside the four way valve
and the deterioration of the
gaskets affected by heat.
(Keep below 120°C.) For
the sake of this, wrap the
four way valve with wet
cloth and provide water so
that the cloth does not dry.
In case of difficulty with gas
brazing machine
1. Disconnect the brazed part
where is easy to disconnect
and restore.
2. Cut pipes on the main unit
with a tube cutter in order to
make it easy to disconnect.
5
Heat up the brazed part
of the discharge side
and disconnect.
6
Heat up the brazed part
of the suction side and
disconnect.
7
Lift the compressor and
remove it.
Note:
Do not use a metal saw for
cutting pipes by all means
because the sawdust
comes into the circuit.
When withdrawing the
pipes, be careful not to
pinch them firmly with
pliers. The pipes may get
deformed.
Provide a protective sheet
or a steel plate so that the
brazing flame cannot
influence peripheries.
Be careful so as not to
burn the compressor
terminals, the name plate,
the heat exchanger fin.
Step
Procedure
Points
(R5899)
(R5900)
(R5901)
