Operating and installation instructions
M-WRG-II P-T (-F, -FC), M-WRG-II E-T (-F, -FC) ventilation units
- 20 -
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 A T I O N & H E A T R E C O V E R Y
the cross-counterflow plate heat exchanger and carried outside as exhaust air (item 5 in
Fig. 9). The supply air and exhaust air fans each transport the same volume of air. The
pressure in the interior remains practically constant.
5.2.2 How the cross-counterflow plate heat exchanger works
The channels on the cross-counterflow
plate heat exchanger (item 1 in Fig. 11)
are designed so that the air flows move
in opposite directions. This guaran-
tees the greatest possible exchange of
thermal energy.
In the winter, the highly thermally
conductive plates transfer the heat from
the extract air flow (item 2 in Fig. 11) to
the supply air flow (item 3 in Fig. 11). The
cooled extract air is carried to the outside
as exhaust air (item 4 in Fig. 11).
In the summer, this is reversed; the
warmer, incoming air is cooled.
Item Designation
1
Cross-counterflow plate heat
exchanger
2
Extract air
3
Supply air
4
Exhaust air
5
Outdoor air
1
2
3
4
5
Fig. 11: How the cross-counterflow plate heat
exchanger works
