Swegon CASA W3 Smart Instructions For Use Manual page 116

aluminium. The passages of the heat
exchanger should be dry before you rein-
stall the heat exchanger in the unit.
The cleanliness and condition of the fans must
be checked at least once every two years. If
dirt builds up in the fans this can affect the
functionality of the ventilation unit.
In particular, if the extract air from the cooker
hood goes directly through the ventilation unit
(W3/W4), grease and dust can accumulate on
the extract air fan impeller and on the walls of
the ventilation unit's fan chamber.
Dismantling instructions for the fans can
be found in the installation, commissioning
and maintenance instruction. If significant
amounts of dirt collect on the fan impeller
cleaning should be left to a professional.
!
Important
You must not change the supply
air and exhaust air settings when
cleaning the control panels. The
air diffusers have be adjusted in
conjunction with commissioning
of the ventilation system.
A qualified technician sets the fan
EN
speeds in accordance with na-
tional regulations in conjunction
with the commissioning of the
ventilation system. You should
not change the airflow yourself
as this may disruption system
functionality.
116 www.swegonhomesolutions.com
CASA
W3/W4 Smart
®
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1. Supply air filter
2. Extract air filter
3. Heat exchanger
4. Air heater, pre-heating
5. Air heater, reheating
The reset button for the overtemperature
protection on the air heater for reheating
in W3/W4 (only models with electric air
!
heater)
The reset button for the overtemperature
protection on the air heater for preheating in
W3/W4.
Swegon reserves the right to alter specifications.
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