Repalacement Of The Thermistor (Suction, Thms); Replacement Of The Thermistor (Discharge, Thmd); Replacement Of The Crankcase Heater (Ch) - Hitachi SAMURAI Series Service Manual

Water cooled water chillers -modular-r134a-screw type
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3 Servicing
Cycle components

3.3.17 Repalacement of the thermistor (Suction, THMs)

1 Remove the insulation of the suction pipe.
2 Loosen the screw fixing the thermistor.
3 At the E-box, disconnect the CN27 contact
(or the Faston terminals 7 and 8 of multiple
contact QCN3)
4 Remove the thermistor.
5 When reassembling after replacing the
thermistor (THMs), perform the procedure in
the reverse order than removing.

3.3.18 Replacement of the thermistor (Discharge, THMd)

1 Cut and remove the plastic bands that fixes
the insulation of the discharge pipe thermistor
(THMd).
2 Loosen the screw fixing the thermistor.
3 At the E-box, disconnect the CN26TD contact
(or the Faston terminals 9 and 10 of multiple
contact QCN3)
4 Remove the thermistor.
5 When reassembling after replacing the
thermistor (THMd), perform the procedure in
the reverse order than removing.

3.3.19 Replacement of the crankcase heater (CH)

1 Disconnect the cables (17 and 18 of the
crankcase heater form the E-box of the
compressor table board).
2 Unscrew the heater and proceed to its
replacement
3 When reassembling proceed in reverse order
than removing.
!
C A U T I O N
Wait for the crankcase heater to cool before
manipulate. Protect your hands with appropiate
gloves.
75
SMGB0120 rev.0 - 11/2017
Suction pipe
Discharge pipe
Thermistor THMd
Thermistor
(THMd)
Plastic bands
Crankcase
heater
Thermistor
THMs
Screw
Screw
3

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