Hitachi RAS-10HRNM, Руководство по обслуживанию, Страница: 433 / 482

1 A
1. CN5A.
A. PCB1.
N O T E
• DO NOT touch electrical components while LED1 (Red) is ON to avoid electrical shock. Wait until the LED turns
off.
¿
Removing solenoid valve coil (20A)
1 Remove the service cover following Removing service cover ,
see on page 414 .
2 Open the P-mounting plate. Check to ensure the LED201 (Red)
of the inverter PCB (PCB2) is OFF.
3 Pull the solenoid valve coil upwards by removing one (1) screw
fixing the coil.
1. Fixing Screw for Solenoid Valve Coil.
2. Solenoid Valve (SVA).
3. Pull it upwards.
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Removing four-way valve coil
1 Remove the service cover and rear service cover according following the Removing service cover , see on page 414
and the Removing the bottom service cover and rear cover , see on page 415 .
2 Collect the refrigerant from the check joint following the Removing the compressor , see on page 419 .
3 Remove the reversing valve coil following the Removing reversing valve coil , see on page 423 .
4 Remove one (1) fixing screw and a band (RAS-8HRNSE only) for reversing valve assemblies.
5 Remove the valve stay.
6 Remove the reversing valve assemblies from the designated positions. (4 brazing parts)
•
Remove the brazing of the reversing valve and the stop valve at gas side by cooling with wet cloth.
• Protect the connecting wires and pipe insulation from brazing frame.
7 Remove the reversing valve from the assemblies.
•
Perform the brazing to remove and reassemble the reversing valve by cooling with wet cloth.
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10 Servicing
425
SMGB0060 rev. 1- 12/2010
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