Removing Reversing Valve - Hitachi RAS-H(V)RNME-AF Service Manual

11 Servicing
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Removing reversing valve

Remove the service cover and the rear service panel accor-
ding to the section Removing Service Cover
Removing lower part of service panel and rear service pa-
nel in this chapter.
Collect the refrigerant from the check joint according to the
section
Removing compressor.
Remove the reversing valve coil according to the section
Removing reversing valve coil.
Remove one (1) fixing screw for the valve-mounting plate.
Remove the stop valve at the gas side from the valve-
mounting plate by removing the two (2) screws.
Remove the reversing valve assemblies from the 4 brazed
parts where it is fixed. Remove the brazing of the reversing
valve and the stop valve at the gas using a blowtorch. Cool
down the piping side covering it with wet cloth, in order to
avoid brazing material entering the reversing valve. Protect
the connecting wires and pipe insulation from the brazing
frame.
Remove the reversing valves from its assemblies 4 brazed
.
parts .
Perform the brazing with a blowtorchto remove and reas-
semble the reversing valve by cooling the pipes first with
wet cloth in order to avoid brazing material entering the re-
versing valve.
Reassemble the parts in the reverse order of removing pro-
cedures contained in this chapter. When SFV is removed,
fix it according to the section Removing the Reversing Valve
and the Solenoid Valve contained in this chapter.
No.
1 Brazing
2 Reversing valve
3 Screw
4 Mounting plate
5 Compressor
6 Cover by wet cloth
272
SMGB0070 rev. 1 - 08/2011
and the section
Part
4
3
1
1
5
6
1
2
1
3
2