Functions; Bypass Function; Maintenance Display; Part List Kwl Ec 500 Eco - Helios KWL EC 500 Eco R Instructions De Montage

Bypass function

Adjustment is carried out via mechanical bypass flap. Open or closed manually. The outside
air is passed by the counter flow heat exchanger at 100% and thus the heat recovery is
stopped.
Defrost function of heat recovery cell
To protect the heat recovery cells from freezing, the supply air fan was switch off temporary
by the measured data of the frost protection sensor.

Maintenance display

Adjustment and control is effected via differential pressure switch DDS. (see wiring SS-857.1).
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The differential pressure switch DDS is a complete kit to monitor air filter, system pressure
and fan operation. The filter state is indicated over a signal lamp (build on site). In that case
the filters must be cleaned or exchanged.

Part list KWL EC 500 Eco

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9

FUNCTIONS

manual bypass function