Helios ultra Silince MiniVent M1/150 F Notice De Montage Et D'utilisation page 35

Installation and Operation Instructions
MiniVent M1/150 F
3. Humidity functions
One-stage, two-stage and variable humidity function can be selected with a combination of DIP-switches 6, 7 and 8.
The selection of the humidity function is technically linked to the assignment of time functions to certain fan stages (see
table below).
– One-stage humidity function
With regard to the one-stage humidity function, the desired dehumidification stage can be preset. If there is a dehu-
midification requirement, the fan will be activated in this stage. This function is factory-set in order to ensure rapid
dehumidification.
– Two-stage humidity function
With regard to the two-stage humidity function, the fan will initially activate in the stage with the lower speed. If the
humidity rises to 10 % above the set activation threshold after activation, the fan will switch to the higher stage. Once
the activation threshold is reached, the automatic control will switch back to the lower stage. The switching between
the stages is linked to a minimum running time of 10 minutes.
This function results in a gentle dehumidification in case of humidity values around the activation threshold and a
powerful dehumidification in case of further increasing humidity values.
– Variable humidity function
With regard to the variable humidity function, the volume of extracted air is automatically controlled by the controller,
depending on the room humidity. In case of increasing room humidity, the fan speed will increase.
This ensures a constantly increasing room dehumidification in relation to slowly increasing room humidity. In this re-
gard, it is useful to reduce the factory-set activation threshold, so that dehumidification begins in the room at a lower
humidity (e.g. stop left corresponds to dehumidification from 40 % RH., which corresponds to approx. 20 % of the
fan speed).
DIP-switch Assignment of time function to
stage
6 7 8
off off off No times
off on off Time at stage 2
off off on Time at stage 1
off on on Time at both stages
on off off No times
on on off Time at stage 2
on off on Time at stage 1
on on on Time at both stages
4. Automatic humidity control
The electronics detect two different types of humidity increase in room air, and it differentiates between a slow and fast
humidity increase.
– High air humidity (slow humidity increase)
In case of a slowly developing humidity increase (e.g. caused by washing, drying textiles, temperature reduction), the
fan will be activated above the set activation threshold (factory setting approx. 70 % relative humidity) and run until
the room humidity has fallen by 10 %. The activation threshold can be set via the potentiometer P 3 between 40 %
RH and 90 % RH. A precise setting is possible by approximation (see Potentiometer setting)
– Event control (fast humidity increase)
Assignment of dehumidification to stage
1-stage, stage 1
1-stage, stage 2
1-stage, stage 1
2-stage, both stages
variable
variable
variable
variable
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