Oil Sump Heating (Standard By F4, F5, F14 And F16) - GEA F Series Assembly Instructions Manual

5| Compressor assembly
5.9 Oil sump heating
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 lack of lubrication, foaming and migration of the
oil, which can eventually lead to compressor damage.
To prevent this, the oil can be heated via an oil sump heater.
Operation: Oil sump heater ON at standstill of the compressor.
Oil sump heater OFF during operation of the compressor
Connection:
Oil sump heater must be connected via an auxiliary contact (or parallel wired
auxiliary contact) of the motor contactor to a separate electric circuit.
Oil sump heater: 230 V – 1 – 50/60Hz, IP65
Type
Electrical power
(Watt)
NH
INFO!
3
WARNING!
F2 F3
40 60
Same electrical performance even on NH
The oil sump heater must not be connected to the electrical circuit
of the safety control chain !
F4 F5
80 80
compressors
3
F14 F16
140 140
17
D
GB
F
E