VALLOX 90K SC
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INSTRUCTIONS FOR USE
2. Instructions for using VALLOX 90K SC
For indoor air to stay healthy and beneficial also for the structures of the dwelling, ventilation
has to be in operation continually. It is not advisable to stop ventilation even for longer
holidays, because it makes indoor air stuffy. Also, during the heating season indoor air
humidity may condense in the ducts and structures and therefore cause humidity damage.
2.1. Initial adjustment
The ventilation system works properly when air flows in the rooms have been measured and
adjusted with the valves in accordance with the planned values.
After the initial adjustment, the
position of the ventilation valves must not be changed
with the exception of the outlet valve with a
knob located in the ceiling of a sauna, which can be adjusted if needed. The initial adjustment
ensures that a sufficient amount of air is circulated and that extract air flow is always greater
than supply air flow, i.e. the dwelling is negatively pressured compared to outdoor air. If
the dwelling is positively pressured, air in the dwelling penetrates the outer envelope of the
building and between windows, which may cause humidity damage during the heating
season.
In normal conditions
basic ventilation
with change of air every two hours is sufficient in living
areas. Boosting is needed during for example sauna baths, cooking, clothes washing or
family parties.
2.2. Fan speed control
Cooker hood control (hood in the unit)
The cooker hood is connected to the ventilation unit and is used to control air circulation in
the whole dwelling. Four power ranges are available.
Speed 1
Use during absence. When the dwelling is empty, ventilation can temporarily be diminished.
Speeds 2 and 3
These are speeds that are normally used. Speed 2 is used when the need for ventilation is
fairly small and air is good.
Speed 3 is used when there is a need for boosting – for instance in the following situations:
cooking, taking a sauna bath, having a wash, drying clothes, use of toilet, guests, excess
heat and "large dwellings".
Speed 4
Boosting position, used as needed for example during cooking, parties and hot weathers.
Cooking
Open the flap of the cooker hood during cooking. At other
times, the flap must be kept closed. An open flap decreases the
power of ventilation in other rooms.
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