Hitachi RWM-(H)FSN3E, Service Manual

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11 Servicing
SMGB0070 rev. 1 - 08/2011
296
No. Part
1 Thermistor holder
2 Holder
3 Td Thermistor
4 Thermistor fixing plate
5 Rubber cap Th Thermistor
6 Compressor
No. Part
1 Indication of terminal number
2 Terminal box cover
3 Compressor wires
No. Part
1 Compressor wires (3 wires)
2 Fix it with screw
N O T E
• The compressor is connected by brazing. Check to ensure whether there are flammable things around or not
when using a burner for pipe connections. If you do not´, oil existing pipe inside may ignite.
• Do not expose the refrigerant cycle to the atmosphere for a long period in order to avoid water and foreign
particles entering into the refrigerant cycle. After removing the compressor, replace it quickly. If it is exposed
to the ambiance for a long period, seal both suction and discharge pipes.
• Remove the cap for the compressor just before replacing the compressor. Before assembling the compressor,
seal the suction pipe and discharge pipe with tape to protect the compressor interior from foreign particles.
Remove the tape when connecting the pipes.
• Match the terminal No. with the mark band No. when reassembling. If the wiring is connected incorrectly, the
compressor may be damaged due to reverse rotation.
• If there is a clearance between the oil heater and the compressor due to wire overlapping, excessive heat is
generated there. Then the oil heater is failed due to overheating. When mounting the reassembled oil heater,
this point should be taken into account.
• If the oil heater lead wire is caught on the spring, the lead wire may be cut due to vibration. When reassembling,
attention should be paid to the lead wire
.
C A U T I O N
All compressor pipes must be brazed to be connected to the refrigerant circuit. Ensure that all the sourrounding
is free of flammable objects and liquids when performing piping brazing work.
2
1
3
4 5
6
2
1
3
2
1
Details for compressor
terminals