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Electrical connection
6.7 Oil sump heater (accessories)
When the compressor is at a standstill, refrigerant diffuses into the lubrication oil of the compressor
housing, depending on pressure and ambient temperature. This reduces the lubrication capacity of
the oil. When the compressor starts up, the refrigerant contained in the oil evaporates out through the
reduction in pressure. The consepuences can be foaming and migration of the oil, causing oil shocks
under certain circumstances.
Operation:
The oil sump heater operates when the compressor is at a standstill.
When the compressor starts up, the oil sump heating switches off.
Connection:
The oil sump heater must be connected via an auxiliary contact (or parallel wired
auxiliary contact) of the compressor contactor to a separate electric circuit.
Electrical data: 230 V - 1 - 50/60 Hz, 140 W.
ATTENTION! The oil sump heater must not be connected to
the electrical circuit of the safety control chain
Fig. 30
Anschlussschema für Ölsumpfheizung
Connection diagramm for oil sump heater
Plan de raccordement pour résistance de carter d‘huile
09983- 10.01-DGBF
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Summary of Contents for Bock HGZ Series
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