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VALLOX TSK Multi 50/80
6
MAINTENANCE INSTRUCTIONS
VALLOX TSK Multi 50/80 filters and heat recovery
cell. The units are available as 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 summer/winter damper
change places correspondingly.
3. MAINTENANCE INSTRUCTIONS
3.1. Before starting maintenance operations
A maintenance switch (not included in the unit delivery) has been mounted outside the unit
at the same time with the electrical installation. The maintenance switch can be used to shut
off the unit for maintenance. Before starting maintenance operations, power supply must
also be cut off at the main fuse panel.
3.2. Filters
Outdoor air is filtered in the unit with two kinds of filters. A G3 class coarse filter (B) filters
off insects, heavy pollen and other dust. An F7 class fine filter (D) filters off fine, invisible
dust. Extract air is filtered with a G3 class coarse filter (C). Clean the coarse filters B and
C by
washing them at least twice a year
. Wash the filters with +25…30
°
C water and washing-
up liquid, pressing them smoothly. Do not handle the filters with force. When washing is
done properly, filters stand cleaning 3 to 4 times. In other words,
they have to be replaced at
least every two years
.
The fine filter (D) is not washable. Clean it at the same time as the G3 class filters by
vacuuming it with a brush nozzle. When cleaning, be careful not to break filter material.
To ensure good supply air quality, replace the filter preferably every year, and at least every two years
depending on local air quality. It is recommended to replace filters in autumn. This way the
filters stay cleaner through the winter and can effectively filter off dust in the following spring.
3.2.1. HR cell
When you clean the filters, it is also advisable to check the cleanliness of the heat recovery
(HR) cell (H) at about two-year intervals. Pull the coarse filters and their frames out of the
unit. Also remove the fine filter if it is used in the unit. You can then pull out the sealing
ledges (I) situated on top and on the sides of the HR cell. After the sealing ledges (I) have
been removed, the HR cell can be pulled out of the unit. Note! The laminas of the HR cell
are very thin and get easily damaged. If the HR cell is dirty, soak it in a solution of water
and washing-up liquid. Rinse the HR cell clean with a jet of water. When all the water has
drained off from between the laminas, you can put the HR cell back in place. Finally, push
the sealing ledges and the filters in place.
Detaching of heat recovery cell
Pull the coarse filters and their frames out of the unit.
Also remove the fine filter if it has been used. You
can then pull out the sealing ledges situated on top
and on the sides of the HR cell. When the sealing
ledges have been removed, the HR cell can be pulled
out of the unit. Note! The laminas of the HR cell are
very thin and get easily damaged.
C
D
B
H
I
Summary of Contents for TSK Multi 50 L
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