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Maintenance
General maintenance instructions
34
DANGER
Risk of electric shock and injury due to moving parts .
Working with the power supply switched on can result in serious injury . Follow the personnel
requirements outlined in the section titled Safety .
Before performing any maintenance, ensure the unit is switched off and isolated from the
mains power supply . Ensure all work is fully completed before reconnecting the heat pump to
the mains power supply and switching it back on .
CAUTION
Release of substances hazardous to health .
Substances hazardous to health may be released when removing dust and other contamina-
tions .
Avoid cleaning with compressed air .
Always wear a dust mask (filter class FFP2 or higher) when performing cleaning tasks .
To ensure optimal operation and a long service life, the unit must be properly maintained
according to the specified guidelines . Regular maintenance activities are outlined in this sec-
tion .
After completing maintenance, restart the unit to confirm normal functionality is restored .
In addition to regular preventive maintenance, it is recommended that a refrigeration techni-
cian inspects the cooling circuit and electrical functions . This inspection must comply with
national regulations for air conditioning system checks .
The following maintenance intervals must be observed:
Status
units in operation
units in storage
CAUTION
Sharp edges:
The cabinet of the unit may have sharp edges that could cause cuts . Always wear protective
gloves when opening the unit .
Very hot and very cold parts inside:
There may be extremely hot or cold components inside the unit that can cause burns .
Switch off the unit at least half an hour before opening it .
Wear protective gloves when working inside the unit .
Maintenance: General maintenance instructions
Maintencance interval
monthly (see section titled Maintenance: General instruc-
tions)
annually (see section titled Transportation, handling and
storage)
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