
10.4.14 Maintenance of the compressor drive motor
Notice
Maintenance of the compressor drive motor must be carried out in accord-
ance with the "Motor documentation".
► The motor documentation is part of the product documentation.
The maintenance of the compressor drive motor includes the following activities:
•
Lubrication of the motor
Lubrication intervals and amounts according to the "motor documentation" or
"nameplate".
•
Cleaning the motor (externally)
Selection of a suitable cleaning agent according to the motor documentation.
10.4.15 Checking the operating parameters
Notice
The checking intervals recommended in the table must be observed.
► The control of the operating parameters is carried out via a Touch Panel.
The project-related setting values and limits are given in the parameter list.
► Inform the GEA Refrigeration Germany GmbH technical customer serv-
ice if the parameters are outside of the permissible limits.
Checking the operating parameters
Parameter to be checked
Every 24 to
72 h
Weekly
Monthly
Remark
Discharge temperature
X
Maximum discharge temperature 150 °C, in individual
cases (e.g. heat pump applications) this may be exceeded
in agreement with the manufacturer.
Oil temperature
X
See parameter list!
The viscosity must not be less than 10cSt.
Oil pressure
X
The oil difference pressure to the discharge pressure
must not be lower than 1.7 bar. In the event of an oil dif-
ference pressure fault, a contaminated oil filter may be the
cause.
Compression discharge
pressure
X
See project value (parameter list). Determine the super-
heat temperature on the pressure side by comparison with
the final discharge temperature.
Oil level in compressor
X
An oil level must be visible in the sight glass at all times. If
the oil level is below the bottom third of the sight glass,
refill oil.
Oil heater
X
When compressor is shut down, the heater must automat-
ically start.
Setting the safety devices
X
See the setting values in the parameter list.
Number of operating hours
X
See maintenance instructions for maintenance work to be
carried out according to the number of operating hours.
Maintenance
Maintenance work
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