Hitachi RAS-10HRNM, Service Manual, Page: 371 / 482

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 sections Removing service cover , see on page
355 and Removing bottom service cover and rear cover , see on page 355 .
2 Collect the refrigerant from the check joint according to the section Removing the compressor , see on page 357 .
3 Remove the coils according to the section Removing reversing valve coil , see on page 361 .
4 Remove the brazing as shown in the figure.
•
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.
¿
Remove solenoid valve
1 Remove the service cover and the rear service panel according to the sections Removing service cover , see on page
355 and Removing bottom service cover and rear cover , see on page 355 described in this chapter .
2 Collect the refrigerant from the check joint according to the section Removing the compressor , see on page 357 in this
chapter.
3 Remove the solenoid valve coil according to the section Removing expansion valve coil , see on page 362 in this chapter.
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.
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10 Servicing
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SMGB0060 rev. 1- 12/2010
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