Appendix A: VAV Zone Controller Points/Properties
Point Name/Description
Default/Range
Sensor Array:
Sensor calculation method -
When using multiple SPT sensors, select the process
variable to be passed to the controller..
D:
R:
Avg
Avg, Min, Max
BACnet configuration:
Network Visible -
Must be enabled for other BACnet objects to read or write to this
point, and for this point to generate alarms.
D:
Enabled
Object Name -
Do not change.
D:
zone_temp
CO2 Sensor
– The current voltage of the controller's
RH/CO2
input.
R:
0 to 5 Vdc
Flow Control / Flow Input
- The current value of the controller's flow sensor input.
R:
0 to 99999 cfm
(liters/second)
RH Sensor
– The current voltage of the controller's
RH/CO2
input.
R:
0 to 5 Vdc
Zone Temp
– The value of the controller's
T55
space temperature sensor input.
R:
-56 to 245°F
(-48.9 to 118.3°C)
SAT Sensor
– The current value of the controller's SAT input.
R:
-56 to 140°F
(-48.9 to 60°C)
Occupancy Contact State –
The current hardware state of the controller's
REMOTE
input.
R:
Open/Closed
Sensor Invalid
– This internal input monitors the communication between the controller
and the SPT sensor.
Off
indicates communication is normal.
R:
Off/On
Hot Water Valve
- The current value of the controller's
HWV/ACT
output.
R:
0 to 100%
Heating Stage 1
- The current hardware state of the controller's
HEAT1
output.
R:
Off/On
Heating Stage 2
- The current hardware state of the controller's
HEAT2
output.
R:
Off/On
Fan S/S or EH 3
- The current hardware state of the controller’s
FAN/HEAT3
output. The
function of this output depends on the terminal type.
R:
Off/On
VAV Zone Controllers
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