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