Removal Of Compressor - Daikin J Series Service Manual

SiBE041012
2.7

Removal of Compressor

Procedure
Step
1. Remove the compressor.
1 Unscrew the 2 nuts of
the compressor.
Before working,
make sure that the
refrigerant is empty
in the circuit.
Be sure to apply
nitrogen
replacement when
heating up the
brazed part.
2 Heat up the brazed part
of the discharge side
and disconnect.
Removal Procedure
Warning Be sure to wait 10 minutes or more after turning off all power supplies
before disassembling work.
Procedure
Discharge side
Warning
If refrigerant gas leaks during
the work, ventilate the room.
(If the refrigerant gas is
exposed to flames, toxic gas
may be generated.)
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 or
the name plate.
Be careful so as not to burn
the heat exchanger fin.
Compressor
Warning
(R11889)
Since it may happen that
refrigerant oil in the
compressor catches fire,
prepare wet cloth so as to
extinguish fire immediately.
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.
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
(R12031)
deterioration of the gaskets
affected by heat. For the
sake of this, wrap the four
way valve with wet cloth and
provide water so that the
cloth does not dry and avoid
excessive heating. (Keep
below 120°C)
Note:
Do not use a metal saw for
cutting pipes by all means
because the sawdust comes
into the circuit.
Outdoor Unit
Points
173