DOL 434 LPV
Technical Manual
35
Setting
Power up delay
makes it possible to stagger the times when the fans start
across the different houses.
E.g. House 1-3: 0 sec. House 4-6: 60 sec.
Rotate
This function makes the controller switch between activating MultiStep with the
same output.
This will ensure that the operating time is distributed evenly between the fans. This
will prevent some fans from wearing out while others rust.
Rotate timer
Setting for the time, after which the house controller switches to the next MultiStep
with the same output.
Maximum output
The ventilation system's maximum output, as a percentage. This value is calculated
based on the data entered.
6.1.1.3 Stepless to step
In houses where the ventilation capacity with the stepless is small in relation to ON/OFF air outlets, it may be an
advantage to disconnect the function
Stepless to Step Automatic
. It will then be possible to delay the change to
step control.
When the function
Stepless to Step Automatic
is active, the controller automatically switches from Stepless to
step adjustment.
Stepless to Step
shows the ventilation percentage when the change is made.
The controller can adjust the ventilation steplessly and in steps.
In case of an increased need for ventilation, this means that:
Stepless:
• Ventilation follows the current ventilation requirement.
• The output of the stepless exhaust unit is reduced when an ON/OFF exhaust unit is connected.
Step:
• Ventilation is carried out in steps.
• The stepless exhaust unit continues to run at 100% when an ON/OFF exhaust unit is connected.
6.1.1.4 Setting outside temperature limit
Inlet limit
The maximum opening of the air inlet for as long as the outside temperature is be-
low the settings in the curve for outside temperature.
Outside temperature
limit
Ventilation limitation via outside temperature can be adjusted to the age of the ani-
mals over two curve points.
Below this outside temperature, the flaps will not open more than
Inlet limit
.
Gradual limit
Temperature range (P-band) in which the threshold is activated.
