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Outdoor Unit: 2MXS18GVJU
SiUS12-928_B
221
Removal Procedure
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 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
For 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
248°F(120°C). 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
Disconnect the brazed
part (a) at discharge side
of the compressor.
6
7
Disconnect the brazed
part (b) at suction side of
the compressor.
Lift the compressor up
and remove it.
Note:
Do not use a metal saw for
cutting pipes or sawdust will
enter 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 outdoor
heat exchanger fin.
Step
Procedure
Points
(a)
(b)
(R2207)