Page 13 of 41
CALCULATED FLAP OPENING
●
Control on the basis of temperature:
The flap opening requirement is calculated on the basis of the
temperature measured, the bandwidth, the minimum and maximum flap opening.
●
Control on the basis of ventilation:
The flap opening requirement is calculated on the basis of the
current main ventilation, the minimum and maximum flap opening.
●
Control on the basis of pressure difference:
If the ventilation group controls on the basis of the preset
pressure difference and pressure control has been switched on (see page 16), the control will try to keep
the pressure difference in the house as constant as possible.
Characteristics:
The pressure setting is automatically adjusted to the outside temperature.
Any temperature differences in the house are considered when determining the flap positions.
The pressure control will be instantaneously switched-off if a ventilation alarm occurs at the main
ventilation control.
If a pressure alarm occurs the pressure control will be delayed switch-off (delay time = 5x pressure
integration time).
CURRENT FLAP OPENING
The current flap opening of the ventilation group is shown in this line.
FLAP CONTROL ON THE BASIS OF VENTILATION
Minimum flap
opening
The flap will never close further than the
"Minimum flap opening" percentage
setting.
Maximum
flap opening
The flap will never open further than the
"Maximum flap opening" percentage
setting.
Minimum at
ventilation
The flap will stay at the preset minimum if the main ventilation is less than this percentage. If
this percentage is exceeded, the flap will open further.
Maximum at
ventilation
The flap will be opened at its preset maximum if the main ventilation is more than this
percentage.
20
40
100
80
60
0
Maximum
Minimum
Minimum
Maximum
Main ventilation [%]
F
lap
open
in
g
[
%]