Programming hints
Whether you do not need one of the macro inputs, connect them to the value specified in the next table.
Inputs |
Default values unused inputs |
SupplyAirTemp |
|
RoomRetAirTemp |
|
RoomAirTempSp |
|
ContrPtAdj |
0 |
FilteredOATemp |
15 |
CO2_Sensor |
0 |
FanEnable |
1 |
EnRecSeqSwitch |
0 |
MinSAT_SpShift |
0 |
PlantMode |
4 |
HumidityMode |
0 |
Fan Speed
Connect the "FanSpeedComand" output of the strategy to the "FanSpeed" input of the fans.
The fan speed can also be changed via
CO2 application tip:
Sometimes, the air quality device is an active controller with its own proportional band and setpoint, providing an output signal from 0...1 Volt or 0...10 Volt between a certain span, e.g. between 800...1000 ppm. This signal has to be converted into a 0...100 % signal in order to connect it to the input CO2_Sensor. When the device measures an air quality, equal to the minimum value, input signal will be 0%. If air quality goes bad, up to the maximum value, the signal will raise up to 100%.
Important: To disable the internal CO2 the user can