SiUS091133 Outdoor Unit: RXS15/18LVJU
Removal Procedure 320
5.6 Removal of Four-Way Valve
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 screw and
remove the four-way
valve coil.
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.)
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 (248°F).) For the sake of
this, wrap the four-way valve
with wet cloth and provide water
so that the cloth does not dry.
Note:
Never use a metal saw to cut
pipes because the sawdust may
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.
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 putty. Heat
up the brazed part of
the four-way valve and
disconnect.
3
Heat up every brazed
part in turn and
disconnect.
Four way
valve coil
Four way
valve
(R5297)
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