44
Product description, continued
Parts
The table shows the main parts in the unit:
No. Part No. Part
1 Exhaust filter (G4) 9 Drain/drip tray
2 Heat exchanger 10 Humidity sensor
3 Supply air fan module 11 Reset button for filter timer
4 Controller 12 Temperature sensor, T1
5
Supply air filter (G4/F7)
G4 filter is standard, F7 filter for pollen is
accessory
13 Temperature sensor, T2
6 Data plate 14 Temperature sensor, T3
7 Exhaust fan module 15 Temperature sensor, T4
8 Bypass module (HCV 5 only) -
Air flow
The following describes and illustrates the air flow in HCV 3 and HCV 5:
HCV 3
d Possibility for supply air outlet in the bottom
of the HCV 3.
HCV 5
No. Description
c
Outside air (T1)
Outside air which enters the heat exchanger is ready to
be heated by the extract air from the house. (e)
d
Supply air (T2)
The supply air is heated by the means of heat
recirculation from the extract air. (e)
e
Extract air (T3)
”Polluted” and warm exhaust air is used to heat up the
outside air (c) by the means of heat exchange in the
heat exchanger.
f
Exhaust air (T4)
The heat of the extract air is used to heat up the cold
outside air (c). The exhaust air is led out of the house.
c
f
e
d
c
f
e
d
d