SiUS041111
Outdoor Unit: 15/18/24 Class
Removal Procedure
219
4
Remove the 3 nuts of
the compressor.
Cautions for restoration
1. Restore the piping by non-
oxidation brazing.
2. It is required to prevent
carbonization of the oil inside
the four-way valve and
deterioration of the gaskets
affected by heat (keep below
120°C/248°F) so wrap the four-
way valve with a wet cloth and
provide water to prevent it from
drying out.s
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.
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 too
firmly with the pliers or it may
deform the pipes.
Provide a protective sheet or a
steel plate so that the brazing
flame cannot influence
peripheries.
Be careful not to burn the
compressor terminals, the name
plate, or the heat exchanger fin.
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.
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 up
and remove it.
Warning
Be careful not to burn
yourself 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 When
refrigerant gas is exposed
to flames, toxic gas may be
generated.
Warning
The refrigerant oil in the
compressor could catch
fire, so prepare a wet cloth
to extinguish fire
immediately.
Caution
In consideration of global
environment protection, do
not discharge the
refrigerant gas in the
atmosphere. Make sure to
collect all the refrigerant gas
.
Step
Procedure
Points
(R14352)
(R14353)
(R14354)
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