19
For the electrical connection of the CoreSense™ Diagnostics module, please refer to wiring diagram below:
Figure 12: CoreSense
™
Wiring Diagram
NOTE: For more information, please refer to Technical Information D7.8.4 “CoreSense™ Diagnostics for Stream refrigeration
compressors”.
Crankcase Heaters
• A crankcase heater is used to prevent refrigerant migrating into the body during standstill periods. Heaters for 4M* and 6M*
compressors are screwed into a sleeve (see Figure 13).
• The crankcase heater is available in 230V.
• The operation of crankcase heater is controlled by the CoreSense™ Diagnostics module.
Figure 13: 100 Watt crankcase heater element
IMPORTANT
Oil dilution! Bearing malfunction! Turn the crankcase heater on 12 hours before starting the compressor.
2
M
L
A
C
HP LP T Stat
Contactor
Coil
Alarm
Indicator
120v
240v
NL
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