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4
. . Maintenance
4.1
Cleaning the unit
You can clean the exterior of the unit with a damp cloth and a
domestic cleaning agent. Do not use any solvents.
Caution:
c
Make sure that no water runs into the unit.
4.2
Scheduled maintenance
It is recommended to have the following inspection and main-
tenance activities performed annually by an installer or other
technical expert.
• Check the casing, the suspension or mounting structure,
and the securing of the unit.
• Check that the heat exchanger or the electrical heating
elements are clean. Settled dust may cause an unpleasant
smell.
Carefully remove dust with a vacuum cleaner.
• Check all connections of the cabling.
• Check the operation of the fans.
