55. . Structural parts of the heat recovery unitStructural parts of the heat recovery unit
The heat recovery unit consists of the following structural parts:
Figure 3 – Unit structure
A - Outdoor air
B - Waste air
C - Supplied air
D - Indoor air
De scription:De scription:
1 - Outdoor air filter
2 - Terminal
3 - Main board
4 - Bypass servo
5 - T & RH waste air sensor
6 - Circulation servo
7 - T & RH outdoor air sensor
8 - IO board
9 - Extracted air filter
10 - Mains supply and fuse
11 - Power board
12 - Power supply
13 - T & RH supply air sensor
14 - T & RH extract air sensor
15 - Comfortable post-heating
16 - Condensate drain
55..11. . Unit bodyUnit body
Outer jacket of the heat recovery unit is made of durable plastic. The internal structure is made of monolithic polypropylene,
which serves as heat and noise insulation without thermal bridges. The orifices of the heat recovery unit (∅ 150 mm) for air supply
and exhaust are situated in its top part.