Hitachi RAS-5HVRNM1E Service Manual page 398

10 Servicing
• Electronic Expansion Valve (EV0): 2 brazing parts.
• Perform the brazing to remove and reassemble the
electronic expansion valve by cooling with wet cloth.
• Protect the connecting wires and pipe insulation from
brazing flame.
1. Expansion valve (EV0).
2. Brazing part.
5 Reassemble the parts in the reverse order of removing
procedures.
¿ Removing solenoid valve
1 Remove the service cover and the rear service panel according to the sections
379 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
SVA2 and SVF), see on page 387 in this chapter.
4 Remove the brazing and flare nuts as shown in the figure. Using a blowtorch and previously cooling the pipe side with
wet cloth in order to avoid brazing material entering the reversing valve.
• Solenoid Valve (SVA1): 2 brazing parts
• Solenoid Valve (SVA2): 2 brazing parts
• Solenoid Valve (SVF): 2 brazing coils
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.
Fix the solenoid valve SVF as shown in the figure below.
1. Attach capillary tube with pipe insulation closely.
2. Pipe insulation.
3. S-Pipe.
4. Fix by cable tie.
5. Wind butil sheet around strainer and capillary tube.
6. Flare connection.
7. Brazing.
390
SMGB0060 rev. 1- 12/2010
1
Removing service
panel, see on page 381, described in this chapter .
Removing the compressor, see on page 383 in this
Removing the coils for the reversing and solenoid valves (SVA1,
2
cover, see on page