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INSTRUCTIONS FOR USE
Simple Control speed selector
K
H
VALLOX 90 SC
2.
Instructions for using VALLOX 90 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 on 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 a 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. Selection of fan speed
Fan speed is selected by using a separate Simple Control speed selector or
Slim Line PTXPA SC cooker hood.
2.2.1. Speed selector
The speed selector can be used to select speeds 1, 2, 3 and 4:
1.
Use during absence. When the dwelling is empty, ventilation can temporarily be diminished.
2-3. Normal use. In normal conditions air needs to be replaced once in two hours.
4.
Boosted operation. Cooking, bathing in the sauna or bathroom, drying clothes, using the
toilet, having guests, overheat or a similar situation may cause a need for higher than
normal ventilation.
If there is a cooker hood independent of the ventilation system in the dwelling, it is not
necessary to raise the speed of VALLOX 90 SC during cooking.
2.3. Post-heating
For most of the year, heat recovered from the air being extracted is enough to warm the cold
air coming from the outside to a suitable temperature. If the heat of extract air is not enough,
air coming from the outside may be heated further, as needed, with the heating radiator (K)
delivered with the unit. The heating radiator is a PTC resistor, which is a live component.
The PTC resistor must not be touched without disconnecting power supply.
Supply air temperature is adjusted using thermostat H.
4
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