
Lumina 750
Classic screens
Pressure
Ctr.
Readout of pressure control value.
Meas.
Readout of pressure measurement (Pascal).
6.8
Function key 7: Fan
7
Ctr.
Readout of the value currently used by the computer to control fan speed. This
value can be a percentage of the fan capacity or the total air flow in m
3
/hour. The
Lumina 750 can calculate this control value using two methods:
The Lumina 750 increases the fan capacity, if the measured compost/tunnel
temperatures differ too much from each other or the average compost/tunnel
temperature is too high.
Meas.
Readout of the measured fan capacity (%) or the total air flow (m
3
/hour) in the
growing room.
Min
Setting of the minimum fan capacity (%) or the minimum air flow (% or m
3
/hour).
The
Fan capacity control value
may never drop below the
Minimum fan capacity
set
value, except when there is a frost alarm or fan failure.
Max
Setting of the maximum fan capacity (%) or the maximum air flow (% or m
3
/hour).
The
Fan capacity control value
may never rise above the
Maximum fan capacity
set
value.
Capacity fan
Setting of the fan capacity in m
3
/h.
Daily increase
Setting of how much the fan speed should increase every day (% or m
3
/h).
Margin. comp. temp.
Setting of the number of degrees the average compost temperature may be too
high before the control computer will start increasing fan speed.
Correction
Setting of the extent of fan speed increase if the compost temperature is too high.
This value is shown as a percentage or m
3
/hour per °C/°F.
Margin comp. diff.
Setting of the number of degrees the measured temperatures may differ within the
compost before the control computer starts increasing fan speed.
Correction
Setting of the extent of fan speed increase if the compost temperatures differ too
much. This value is shown as a percentage or m
3
/hour per °C/°F.
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