VALLOX 75/95
9
MAINTENANCE INSTRUCTIONS
Filters and heat recovery cell.
The units are available in right and left handed
models. In the right handed model (model R)
outdoor air comes to the unit from the right side
of the centre line as shown in the instructions.
In the left handed model (model L) outdoor air
comes from the left side of the unit. The filters
and the heating radiator (D) change places
correspondingly.
In blocks of flats and terraced houses, the maintenance of the unit is taken
care of by a property maintenance company or the user, depending on the
contract.
Before starting maintenance activities, stop the machine either at the ON/OFF switch or by removing the
fuse from the fuse panel of the dwelling. The safety switch also turns the unit off when the door is opened.
FILTERS
Outdoor air is filtered in the unit with two types of filters. A G3 class coarse filter(A) filters
off insects, heavy pollen and other dust. A F7 class fine filter (B) filtersoff fine, invisible dust.
Extract air is filtered with similar G3 class filters as outsideair.
Clean the coarse filter (A) when needed for example by washing them 2 to 4 times a year
(and more often if needed). Wash a coarse filter with +25…30
°
C warm water and washing-
up liquid, pressing it smoothly. Do not handle the filters with force.When washing is done
properly, filters stand cleaning 4…5 times. In otherwords, you have to
replace them at least every
two years
or when needed.
The fine filter (B) is not washable. Clean it at the same time as the coarse filters,using the
brush nozzle of a vacuum cleaner. When cleaning, be careful no tobreak filter material.
To
ensure good supply air quality
, replace the filter from every six months toyear (more often if needed)
depending on local air quality. It is recommended to replace filters in autumn. This way the
filters stay cleaner through the winter and can effectivelyfilter off dust in the following spring.
In connection with the cleaning of the filters, it is also advisable to check the cleanliness of
theheat recovery cell (C) every two years or so. Grab the ears at the ends of the cell and
pull thecell out of the unit. If the cell is contaminated, soak it in a solution of water and
washing-upliquid. Rinse the cell clean with a jet of water. When all the water has drained
from betweenthe laminas, push the cell back so that the sealings next to the sliding surfaces
are in place andthe "up" sticker at the end of the cell points to the corner next to the upper
support.
In addition, check in autumn and spring the position of the summer / winter damper and
theleaving of condensing water from the unit as well as the position of the post-heating
radiator thermostat.
Filter guard Vallox 75/95 (option)
VALLOX 75/95 can be equipped with an optional filter guard. The filter guard indicator
lights up at speeds 3 and 4 when the filters are clean; this is normal and does not call for
any maintenance activities. If the indicator does not light up at speed 4, the pressure over
the finefilter differs from the factory setting. When needed, an expert may change the setpoint.
If the filter guard symbol already lights up at fan speed 1 or 2, the filters need cleaning
. If they are clean,
the lighting up may be caused by a clogged up dense mosquito net installed against mounting
instructions in the external grille or by the closing of the supply air valves in the rooms.
A
B
A
Filter guard indicator lamp
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