Crankcase Heater - Emerson Copeland 4MTL-05 Application Manuallines

4.8

Crankcase heater

IMPORTANT
Oil dilution! Bearing malfunction! Turn the crankcase heater on 12 hours
before starting the compressor.
A crankcase heater is used to prevent refrigerant from migrating into the compressor shell during
standstill periods. It is always required for 4MTL* and 4MSL* Stream compressors.
4MTL* and 4MSL* Stream compressors use a 100-Watt crankcase heater available in 115 V or
230 V. The crankcase heater is delivered as a kit together with the compressor. This "easy-to-install"
kit consists of 3 parts:
▪ 1 crankcase heater;
▪ 1 heat-conductive paste tube;
▪ 1 mounting ring.
The operation of 115 V and 230 V crankcase heaters can be controlled by the Next Generation
CoreSense module.
Figure 37: 100-Watt crankcase heater element
The crankcase heater has to be inserted in a special chamber.
Assembly instructions
Insert the mounting ring along the heating part
until it blocks.
AGL_Stream_ST_4MTL_4MSL_E_Rev01
Figure 38: Crankcase heater kit
Spread a thick layer of conductive paste around
the heating part.
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