Main parts

2a

Heat recovery cell

3a

Extract air fan (behind the protective cover)

3c

Supply air fan (behind the protective cover)

4a

Fine filter for supply air

4b

Coarse filter for supply air

4c

Coarse filter for extract air

5a

Bypass damper of the HR cell

6a

Post-heating resistor (behind the extract air duct)

7a

Safety switch

9a

Ceiling bushing for electric wires

10a

10b

Control panel

11a

Internal humidity sensor

Internal carbon dioxide sensor

11c

Carbon dioxide sensor (optional)

11d

Humidity sensor (optional)

11e

VOC sensor (optional)