Operating instructions
M-WRG-S/Z-S, M-WRG-S/Z-24,
M-WRG-S/Z-EIB, M-WRG-S/Z-KNX (-F, -FC) ventilation units
- 13 -
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
V E N T I L AT I O N & H E AT R E C O V E R Y
5.2
Description of the functions
5.2.1 How the M-WRG ventilation unit works
The supply air fan (item 5 in Fig. 8) transports outdoor air (item 7 in Fig. 7) through the supply air
filter (item 2 in Fig. 8) and cross-flow plate heat exchanger (item 3 in Fig. 8) into the interior as
supply air (item 4 in Fig. 7). The extract air fan (item 4 in Fig. 8) simultaneously extracts the extract
air (item 3 in Fig. 7) from the interior. In the extract air filter (item 1 in Fig. 8), the extract air is
cleaned, guided through the heat exchanger and carried outside as exhaust air (item 8 in Fig. 7).
The supply air and extract air fans each transport the same volume of air. The pressure in the inte-
rior remains practically constant.
Item Designation
1
M-WRG ventilation unit
2
Internal wall side
3
Extract air
4
Supply air
5
External wall side
6
Outer wall terminal
7
Outdoor air
8
Exhaust air
Item Designation
1
Extract air filter
2
Supply air filter
3
Cross-flow plate heat exchanger
4
Extract air fan
5
Supply air fan
Fig. 7: How the ventilation unit works
Fig. 8: Components for air exchange
