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Si00-778
Step
5
Remove the putty.
6
Cut the pipe with a tube
cutter.
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. Remove the four way
valve.
1
Heat up the brazed part
(a) and withdraw the
piping with pliers.
Removal Procedure
Procedure
Putty
Tube cutter
(a)
Removal of Four Way Valve
(R7416)
Four way valve coil
Be careful not to get yourself
burnt with the pipes and other
parts that are heated by the
gas welding rod.
From the viewpoint of global
environment protection, do
not discharge the refrigerant
gas in the atmosphere. Make
sure to recover the refrigerant
gas with the recovery system.
(R7417)
Reassembling precautions
1. Use non-oxidizing brazing
method. If nitrogen gas is not
available, braze the parts
speedily.
2. Avoid deterioration of the
gaskets due to carbonization
of oil inside the four way
valve or thermal influence.
For this purpose, wrap the
four way valve with wet
cloth. Splash water over the
cloth against becoming too
(R7418)
hot (keep it below 120°C).
Points
Caution
Caution
15
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