FloAire DDC - Manual (Page 7)

7
SOFTWARE SETUP & NETWORK VARIABLES
The DDC controller provides a fixed set of analog and binary variables for adjustment in the field. These
variables are listed below for each language. All variables are factory set (if applicable) to the values as
shown. The on-site DDC Controls Contractor should adjust values accordingly as required.
LIST OF ANALOG VARIABLES (AV):
AV: 1: Software Control Source. Use this variable to set the method of controlling the
occupied/unoccupied status of the unit.
Properties
- Editable using integer values only
- BACnet Reference: ctrl_source
- Modbus Register: 40001
- N2 Register: 1
- Lonworks ID: nviCtrlsrc
- Range: 0 to 4
- Description:
0 = digital input
1 = keypad control (service)
2 = building automation control using BV: 1
3 = BACnet Schedule control
4 = Override ON
AV: 2: Incoming Air Temperature Sensor. This variable provides the intake air temperature
sensor reading from the unit.
Properties
- Fixed readout. Non-editable
- BACnet Reference: iat_sensor_visible
- Modbus Register: 40027
- N2 Register: 14
- Lonworks ID: nvoIncomingAir
- Range of -25.0 to 225.0
- Units of degrees Fahrenheit (can be changed in software)
- Type II 10K Thermistor
AV: 3: Heating Supply Air Setpoint. Use this variable to set the heating supply air target setpoint
for the unit.
Properties
- Editable, precision to the tenth of a degree
- BACnet Reference: hsat_stpt
- Modbus Register: 40021
- N2 Register: 11
- Lonworks ID: nviHeatSupAirStp
- Units of degrees Fahrenheit (can be changed in software)
- Range: 40.0 to 140.0
- Default: 55.0