Hitachi RAS-4-HNPE - Removing Electronic Expansion Valve and Solenoid Valve

10. Servicing
419
SMGB0079 rev.0 - 01/2013
10
10.4.2.14 Removing Electronic expansion Valve and Solenoid Valve
1 Remove the service cover, the bottom service cover and the rear cover following Removing service cover and Remo-
ving bottom service cover and rear cover.
2 Recover the refrigerant from check joints according to Removing Compressor.
3 Remove the coils according to Removing Electronic Expansion Valve Coil and Removing Solenoid Valve Coil.
4 Remove the brazed parts as shown in the gures.
- Electronic Expansion Valve (EVO) Brazed Parts: 2
- Solenoid Valve (SVA) Brazed Parts: 2
a. Remove the electronic expansion valve and the so-
lenoid valve with cooling the valve bodies by wet
cloth.
b. Perform the brazing work with attention not to burn
the electrical wirings and the piping insulations.
Electronic expan-
sion valve
Solenoid valve
(SVA)
Brazing parts
Brazing parts
5 When reassembling after replacing the valves, perform in the reverse procedure of removing.
N O T E
Runtheleadwirestobelocatedtotheoriginalposition,andxthembytheplasticband