We have optimised the air ducts to reduce energy consumption associated with air transport. Click on the icons to view examples of winter and summer operation, de-icing and cold recovery.
Wintertime Operation
Wintertime operation with heat recovery.
Extract air enters at the top and is led vertically down through the counter flow heat exchanger with any condensed water.
The outdoor air enters from the bottom and runs up through the exchanger – i.e. a counter flow.
Summertime Operation
Summertime operation without heat/cold recovery.
Both the outdoor and the extract air run around the heat exchanger via the bypass.
This internal pressure loss is reduced and the system uses less power for the ventilators and reduces the SFP value.
De-icing
Ice-dectection occurs via monitoring of pressure loss across the heat exchanger.
In the case of extract air with low humidity, e.g. from an office, the temperature can fall below 0 °C without ice forming.
De-icing only begins when there is ice! So no waste of energy due to unnecessary de-icing.
Cold recovery
In the summer time, if cold recovery is selected via the EXact control system, both air streams will be fed through the heaat exchanger.