
Lumina 750
Classic screens
6.9
Function key 8: Heating/cooling/steam
8
Index
Selection of thermal control 1-3.
Heating
Ctr.
Readout of the temperature currently used to control the heating valve.
Meas
Readout of the average or measured air inlet temperature (°C/°F).
Heating
Setting of whether heating is to be used.
Dead zone
Setting of the number of degrees the air inlet or room temperature may be too low
before the Lumina 750 opens the heating valve. The larger the dead zone, the later
heating will activate.
Cooling
Ctr.
Readout of the temperature currently used to control the cooling valve.
Meas
Readout of the average or measured air inlet temperature (°C/°F).
Cooling
Setting of whether cooling is to be used.
Use the
Cascade
system setting to enter if cooling 1 and 2 may switch on
simultaneously (
Cascade = YES
).
CASCADE = NO
If the compost temperature becomes too high by more than the
Release
cool-2
setting, cooling-1 switches off and cooling-2 switches on. If the
Release cool-2
is 0.0, cooling-2 will not switch on.
CASCADE = YES
The second cooling can only activate if the valve positions of cooling 1
and 2 are set. The Lumina 750 activates the cooling controls successively.
This means that cooling 1 must be 100% open, before cooling 2 can be
opened. With cooling control, cooling 2 must be closed, before the Lumina
750 can close cooling 1.
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