4
Vallox
90
MC
© VALLOX • We reserve the right to make changes without prior notice.
What the units include can vary depending on the sales area.
MAINTENANCE INSTRUCTIONS
Fans
Check the cleanliness of the fans when carrying out maintenance
for a fi lter and the heat recovery cell. Clean the fans if needed. The
fans can be removed from the unit for cleaning. The fan blades can
be cleaned with compressed air or with a brush. Do not remove or
move the balancing pieces on the fan blade.
Detaching supply air fi lter (A)
Before detaching the supply air fan, you must remove the F7 fi ne fi lter
(C). To remove the F7 fi ne fi lter, pull it out. The fan is attached to the
fi xing plate with a butterfl y nut. Detach the butterfl y nuts and lift the
fan off. Finally, disconnect the quick coupling of the fan conductor.
Detaching extract air fi lter (B)
The fan is attached to the fi xing plate with a butterfl y nut. Detach
the butterfl y nuts and lift the fan out. Finally, disconnect the quick
coupling of the fan conductor. If you use water for cleaning the unit
or parts of it, do not let it enter the electrical parts.
Condensing water
During the heating season, humidity of extract air condenses into
condensing water. Water formation may be abundant in new
buildings or if ventilation is low compared to the humidity build-up
caused by the residents. Condensing water needs to fl ow out from
the ventilation unit without hindrance. In carrying out maintenance,
e.g. in autumn before the beginning of the heating season, make
sure that the condensing water outlet (L) in the bottom tank is not
clogged. You can check it by pouring a little water in the tank. Clean
if needed. Do not let water fl ow into electrical devices.
