EN
Walter Meier reserves the right to alter specifications.
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18
INSTRUCTIONS FOR USE
1.4 ECO model’s thermostat
*
1
2
3
4
(5
(6
=
=
=
=
=
=
=
8 °C
11 °C
14 °C
17 °C
20 °C
23 °C)
26 °C)
Bypass past the heat exchanger:
The cover closed in the winter; open in the
summer.
1.3 Bypass past the heat exchanger
The bypass of air past the heat exchanger is
a built-in function in the ventilation unit. This
function is used to prevent heat recovery on
hot summer days. The bypass is activated by
opening the cover in the extract air chamber’s
bypass duct by pulling the cover outward
towards the service cover. When the next heat-
ing season begins, you simply close the bypass
cover. When the cover is open, the voltage sup-
ply to the electric air heater is switched off.
