Helios AIR1-NH WW Notice De Montage Et D'entretien page 24

Installation and Operating Instructions
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DANGER
Hot Water Auxiliary Heater – AIR1-NH WW
2 .1 .3 Hot water auxiliary heater for AIR1 XH (3500, 4500, 5500, 7000, 8500) and AIR1 RH (1500, 2000, 3000) units
The AIR1 unit must be fully isolated from the mains power supply before all maintenance and installation work
and opening the terminal compartment! The electrical connections must be carried out in accordance with the
following wiring diagrams and must only be carried out by qualified electricians . The electrical connection must
be fully isolated until the final assembly!
1. Remove panel (see Fig. 15).
2. Remove the plate from the panel (see Fig. 16).
The two plate halves with recess are located behind the plate. These are needed again during installation.
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Fig .15
Fig .16