6.4
Special maintenance intervals
Air conditioning unit
Clean the air filter of the air conditioner at least every 3 months.
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Inverter
It is recommended to replace the cooling fan after six years of operation. This can be done by the cus-
tomer or by the manufacturer. Please note that the replacement must be conducted by a qualified
electrician and that the inverter must be disconnected on the AC and DC sides for this purpose (dis-
mantled state).
Electrical equipment
Danger to life due to electric shock!
Live components can cause fatal electric shock if touched.
Work on the electrical equipment may only be conducted by a qualified electrician with WLE
pass.
Conduct the preparatory measures (see "Preparatory measures").
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Perform the safety check according to the country-specific guidelines and standards.
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Danger
Maintenance – Special maintenance intervals | 105
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