Daikin ARX20GV1B, Руководство по обслуживанию

Страница: 21 / 23

Si00-874 Removal of Compressor
Removal Procedure 19
7. Removal of Compressor
Procedure Warning Be sure to wait for 10 minutes or more after turning off all power
supplies before disassembling work.
Step Procedure Points
1. Remove the peripheries.
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.
1
Remove the four way
valve, the terminal
cover and the lead wire
for the compressor so
as not to burn them.
2 Remove the 3 nuts of
the compressor.
„
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.
2. Remove the compressor.
1
Heat up the brazed part
of the discharge side
and disconnect.
2
Heat up the brazed part
of the suction side and
disconnect.
3 Lift the compressor up
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.
(R12022)
(R7422)
Discharge side
Suction side
(R7423)
(R7424)