Dantherm HCH 5 Bedienungsanleitung Seite 26

Product description,
Air flow
26
continued
The following describes and illustrates the air flow in a HCH 5 and HCH 8:
No.
Outside air (T1)
Supply air (T2)
Extract air (T3)
Exhaust air (T4)
Description
Outside air which enters the heat exchanger ready for
heating by the extract air from the house ( ).
The supply air is heated by the means of heat recircu-
lation from the extract air ( ).
"Polluted" and warm extract air is used to heat up the
outside air ( ) by the means of heat exchange in the
heat exchanger.
The heat of the extract air is used to heat up the cold
outside air ( ). The exhaust air is led out of the house.