
Lumina 750
Classic screens
RH Tunnel
RH
Readout of the calculated relative humidity in the tunnel (%).
DB
/
WB
Readout of the measured relative humidity (RH) using two temperature sensors: a
dry bulb and a wet bulb. One of these sensors (the wet bulb) is kept wet by a wick
hanging in a water reservoir. The control computer calculates relative humidity (RH)
using measurements from these two sensors.
6.7
Function key 6: Fresh air
6
Ctr.
Readout of the value currently used by the Lumina 750 to control fresh air. This can
be the position of the fresh air inlet (%) or the air flow in m
3
/hour. The control value
is always a value between the entered minimum and maximum fresh air values.
If fresh air control is used, the Lumina 750 will take the air inlet temperature or O
2
influences on fresh air into account in the calculation of the fresh air control value.
The greatest influence is used in the calculation.
Meas.
Readout of the measured position of the fresh air inlet (%) or the air flow (m
3
/hour).
Min.
Setting of the minimum fresh air (% or m
3
/hour). The
Fresh air control value
may
never drop below this value, except if there is the risk of frost.
Max.
Setting of the maximum fresh air (% or m
3
/hour). The
Fresh air control value
may
never rise above this value.
The
Maximum fresh air
can be set up to 120%. The fresh air inlet will
remain completely open with a
Fresh air control value
higher than 100%
while there is an extra increase of fan speed.
Infl. air inlet
Setting if the air inlet temperature is to be controlled using fresh air.
Infl. O2
Setting if the O
2
content is to be controlled using fresh air.
Outside test
Setting of how to check whether the outside air is suitable for cooling.
●
CTRL
: The outside temperature is compared to the air temperature control
value.
●
MEAS
: The outside temperature is compared to the measured air temperature.
●
NONE
: The outside air is always suitable for cooling.
Use outside air for
Cooling
Readout showing whether outside air is suitable to decrease the air inlet
temperature.
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