Helios AIR1 XC 500 L Notice De Montage Et D'entretien page 117

Installation and Operating Instructions
Compact Ventilation Units AIR1 XC
EN
5. Remove the fan slowly and carefully, see Fig. 39.
Fig� 39
6. Pay attention to electrical connections when installing the fan!
5�6 Service and maintenance of electrical pre-heater
m
m
Danger to life due to electric shock!
DANGER
The unit must be fully isolated from the mains power supply before all maintenance and cleaning work.
Risk of injury due to electric shock, moving parts (fan) and hot surfaces�
Carry out maintenance after a waiting period of 3 minutes.
The servicing and maintenance of the electrical pre-heater must be carried out by trained and experienced
personnel and the required safety precautions must be taken�
The electrical pre-heater must be checked for contamination and damage every 6 months. If there is dirt and dust on
the electrical pre-heater, these can be removed with compressed air.
1. Unlock and open the service doors. Support the door with your hand while opening, see Fig. 40.
Fig� 40
2. Unplug the electrical connections to the electrical pre-heater, see Fig. 41.
Fig� 41
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