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11
CONTROL
STRATEGY
Night-time Cooling
Input Priority List
During the summer season between the hours of 00:00 and 6:00 am the
system will automatically open the dampers and Louvres in all zones where
the measured temperature is > 16°C.
This pre-cools the space ready for the next day and can reduce the peak
temperature for the following day.
There are priorities associated with each input so that certain inputs override
others, such as Fire Alarm input overriding the CO
2
mode. This is shown in
Table 4 below. The CO
2
and heating interlock priorities can be swapped via
configuration settings.
further 20%. This 20% increase every 5 minutes is repeated if the level
remains > 1300 ppm until the dampers are fully open which is where they
remain until the level drops below 1300 ppm.
Note: If the dampers are already at 100% they do not open any further.
Input
Priority
1
Fire Key Switch
Highest
2
Fire Alarm
3
Competition Switch
4
Override Open
5
Override Close
6
Rain/Snow/Frost Protection
7
CO2
8
Heating Interlock
9
Temperature
Lowest
Additional Temperature Sensor and Averaging
Zone Usage
The Additional Temperature sensor is auto detected at power up and is
used with the integrated sensor in the zone controller (SOLA-BOOST or
WINDCATCHER) to give an average temperature in a larger zone, unless
selected otherwise using the iNVent Configurator software.
Maximum of 3 SOLA-BOOST (Classic / X-Air) systems (Power tracks) can
be connected to one zone (controller) or a maximum of 3 WINDCATCHER
(Classic / X-Air) systems (Damper Motors) can be connected to one zone. If
the large dampers with 2 actuators are used or SUNCATCHER’s (a maximum
of 6 per Panel) are installed be aware that the system can only accommodate
a maximum of 24 Belimo’s.
Other Information