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VALLOX TSK
MAINTENANCE INSTRUCTIONS
9
The cleaning and maintenance of ventilation units is usually the responsibility
of the maintenance company used by the housing company.
Start
The maintenance for the unit of each dwelling is carried out from the staircase, through the
locked service door situated above the door to the dwelling in question. Remove the door
plates (A) of the unit by opening the star knobs (B). The unit includes a maintenance switch
(C), which is used to stop the unit for the duration of maintenance. Depending on the internal
electricity connections of the house, the maintenance switch may also make the cooker hood
in the dwelling dead.
Filters
Maintenance includes the cleaning or replacement of G3 coarse filters (D) as needed, for
instance 2 to 4 times a year. F7 fine filter (E) is a disposable filter and cannot be cleaned,
but it must always be replaced with a new one when needed, preferably at one-year intervals
depending on local air quality. It is recommended to replace filters in autumn. This way the
filters stay cleaner throughout the winter and can effectively filter off winter dust.
G3 filters (D) must always be in the unit. It is recommended to time filter maintenance so that
at least one filter replacement takes place in autumn when the pollen period is already over.
This ensures clean filters for winter, without any smells and natural dust that would form a
suitable breeding ground.
Condensing water, i.e. water condensing from extract air
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.
During maintenance activities, e.g. in autumn before the beginning of the heating season,
make sure that the condensing water outlet (at the rear edge of the bottom reservoir, at where
the heat recovery cell F is) in the bottom reservoir is not clogged. Test it by pouring water into
the reservoir.
Do not let water flow into electrical devices.
A
B
C
D
F
E
D
