Removing Solenoid Valve - Hitachi RAS-(3-6)HVRNM2E Service Manual

10 Servicing
1. Brazing.
2. Reversing valve.
3. Mounting plate.
4. Screw.
5. Compressor.
6. Cover by wet cloth.
  
Removing expansion valve
1 Remove the service cover and rear service panel according to the section
Removing the lower part of service panel and rear
2 Collect the refrigerant from the check joint according to the section
3 Remove the coils according to the section
see on page 380.
4 Remove the brazing as shown in the figure.
• Electronic Expansion Valve (EV0): 2 brazing parts.
• Perform the brazing to remove and reassemble the elec-
tronic expansion valve by cooling with wet cloth.
• Protect the connecting wires and pipe insulation from bra-
zing flame.
1. Expansion valve (EV0).
2. Brazing part.
5 Reassemble the parts in the reverse order of removing proce-
dures.
  
Removing solenoid valve
1 Remove the service cover and the rear service panel according to the sections
and Removing the lower part of service panel and rear
2 Collect the refrigerant from the check joint according to the section
chapter.
3 Remove the solenoid valve coil according to the section
4 Remove the brazing and flare nuts. Using a blowtorch and previously cooling the pipe side with wet cloth in order to
avoid brazing material entering the reversing valve.
5 Perform the brazing to remove and reassemble the solenoid valve.
6 Protect the connecting wires and pipe insulation from the brazing flame.
7 Remove the flare nuts with two spanners to avoid twisting.
8 Reassemble the parts in the reverse order of removing order of removing procedures.
382
SMGB0064 rev.0 - 08/2011
panel, see on page 373.
Removing the
Removing the coils for reversing and solenoid valve (SVA1 SVA2 and
panel, see on page 373 described in this chapter .
Removing the
Removing expansion
3
4
4
1
1
5
6
2
cover, see on page 372 and
Removing service
compressor, see on page 375.
1
2
Removing service cover, see on page 372
compressor, see on page 375 in this
valve, see on page 382 in this chapter.
1
2
1
SVF),