228
Servicing
TURN OFF all the power switches.
(14) Wind the crankcase heater around the compressor.
(15) Attach the RC cover to the compressor.
(16) Reconnect all wires.
(a) The crankcase heater lead wire and the power line shall be xed inside the RC cover with tacks T), without contacting
the piping.
(b) Draw the lead wire for high pressure switch (PSH) and attach the Td thermistor. Pull out the wire from the dent part at
the top of the RC cover.
NOTE:
1. If the power line or the crankcase heater lead line contacts the high temperature part such as the discharge pipe or
compressor chamber, the wire may be cut or catch re. Protect the wire from overheating and protect the edge with
the RC cover.
2. Check that the high pressure switch (PSH) does not contact the RC cover aluminium sheet.
(Example)
Hook the spring from
the back side of washer.
Spring
Hook
Crankcase
Heater
Compressor
Hook
Crankcase Heater Lead Wire
Do not bite the wires
Power Line
Notches
Compressor
Crankcase Heater
RC Cover
Power Line
Crankcase Heater
Lead Wire
For fixing power wire and
crankcase heater lead wire
Tack
Aluminium Sheet
Tack
NOTE:
1. Attach the crankcase heater firmly to the compressor and fix it with springs as shown in the figure
2. If there is clearance between the crankcase heater and the compressor due to wire overlapping, excessive
heat will be generated there. Then crankcase heater may break down due to overheating. When mounting
the reassembled crankcase heater, this point should be taken into account.
3. If the crankcase heater lead wire catches on the springs, the lead wire may be cut due to vibration. When
reassembling the crankcase heater, attention should be paid to the lead wire.
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