Version No. 1-1 - 04.05.2021
Doc. No. 994274002
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14. Maintenance & Cleaning
Danger from electrical voltage
Maintenance and cleaning must be carried out by specialists (electricians). The
personnel must ensure that for the duration of this work the unit and the cabinet
are disconnected from the electrical supply and protected against unauthorised
reactivation.
Danger through incorrect work on the unit
The instructions in the cabinet manufacturer’s manual must be read.
Damage to the unit through incorrect maintenance and repair.
Maintenance and repair of the refrigerant circuit must be carried out by the
manufacturer or another specialist.
Unit service and cleaning
All units are virtually maintenance-free.
Note: Please check on our website under download / service and maintenance for our new videos.
However, the following points must be taken into account:
The service and cleaning of the unit must be undertaken by specialists. The personnel must ensure that for the
duration of the cleaning work the unit and the cabinet are disconnected from the electrical supply and protected
against unauthorized reconnection. The connections 1&2 and 3&4 are not low voltage (<50V).
Regularly check the condenser profile for dirt tests (approx. every 2,000 hours depending on the grade of
ambient pollution).
Should the condenser need cleaning:
Disconnect the whole plant from the mains.
Clean the condenser profile as required by blowing it out with compressed air.
In cases of extreme pollution a cleaning fluid must be used.
Danger from electrical voltage.
The unit must be removed from the control cabinet for wet cleaning! Instruction: Never use aggressive
cleaning fluids or materials.
Should fluid cleaning be necessary:
Disconnect the whole plant from the mains
Remove the unit from the cabinet
Ensure that the seals are not damaged
Remove the radial fan
Steam-clean the condenser profile or wash it with an environmentally safe cleaning fluid.
Instruction:After cleaning and drying the unit, there must be a two hour delay before the unit is taken back
into operation.
15. Maintenance
Attention! Only use original replacement parts when repairing the unit. This ensures that the unit functions
perfectly and remains safe. For further information and spare part ordering please contact us by email under on
one of the addresses stated on the last page.
Radial fan replacement: The normal working life of the fan is app. 40,000 working hours under normal
