Hitachi RAS-2-HVNP Service Manual page 394

10. Servicing
1. Thermistor holder
2. Holder
3. Td Thermistor
4. Thermistor fixing plate
5. Rubber cap Th Thermistor
6. Indication of terminal number
7. Terminal box cover
8. Compressor
9. Compressor wires
10. Fix it with screw
11. Compressor wires (3 wires)
A. Details for compressor terminals
N O T E
• Compressor piping must be connected by brazing. MAKE SURE that any flammable material is not around
before heating with burner for the oil inside the piping may flame up.
• Do not expose the refrigerant cycle to the atmosphere for a long period to avoid moisture or dust into the cycle.
Be sure to replace the compressor immediately after removing. Seal the suction and discharge pipes when the
refrigerant cycle is left unattached for a long period.
• Remove the cap of new compressor right before the replacement. Before mounting the compressor seal the
suction and discharge pipes with a tape to protect the compressor from dust. Remove the tape when blazing
the pipe.
• For piping at reassembling ensure that the compressor terminal numbers and wiring mark band codes are
matched. Incorrect wiring numbers may result in inverse rotation and damage of the compressor.
6 Remove the suction pipe and discharge pipe from the compressor.
N O T E
Be sure to separate the blazing burner flame sufficiently from the wires and electrical components around
the brazed part in order to avoid burning.
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SMGB0079 rev.0 - 01/2013