Appendix A: VAV Zone II Points/Properties
VAV Zone II Controllers
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Installation and Start-up Guide
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89
System Space AQ
– The indoor air quality received over the network. -999 indicates no
value has been received and it will not be used.
R:
300 to 9999 ppm
System Cool Demand Level
– The value received over the network and used by the
demand limiting function to expand the cooling setpoint.
R:
0 to 3
System Heat Demand Level
– The value received over the network and used by the
demand limiting function to expand the heating setpoint.
R:
0 to 3
System Outdoor Air Temperature
– The OAT received over the network.
R:
-50 to 150°F
(-45.5 to 65.5°C)
System Occupancy
– The status of the
System Occupancy
network point.
D:
R:
Unoccupied
Unoccupied/Occupied
Maintenance
Navigation:
i-Vu® / Field Assistant:
Properties
>
Control Program
>
Maintenance
Point Name/Description
Default/Range
Unit
Occupancy Status
– The controller's occupancy status as determined by a network
schedule, a local schedule, or a timed override.
R: Unoccupied/Occupied
Temp Compensated Start
or
Learning Adaptive Start
– Indicates the type of optimal
start (if any) that is configured and whether the algorithm is active or inactive.
R: Inactive/Active
Space Temp Source –
The source of the controlling space temperature value.
Options:
Sensor Failure
– No valid space temperature or sensor status = failed.
SPT Sensor
– An SPT sensor is connected to the controller's Rnet port.
T55/56
– A T55, T56, or T59 sensor is connected to the controller's I/O terminals.
Network
– A network temperature sensor is bound to the controller's space
temperature AV.
Airside Linkage
– The space temperature from a linked terminal.
Locked Value
–The controller's space temperature input has been manually locked at a
value.
ZS Sensor
– A ZS sensor is connected to the controller's Rnet port.
R: Sensor Failure
SPT Sensor
T55/T56
Network
Airside Linkage
Locked Value
ZS Sensor
Setpoint Adjustment
– The amount that a user has adjusted the setpoints at a zone
sensor.
R: -20 to 20 °F
(-11.1 to 11.1 °C)
Effective Heat Setpoint
– The current heating setpoint. May include offsets from
configured occupied/unoccupied setpoints resulting from
Optimal Start
to
Demand
Limit
.
R: _°F/C
Effective Cool Setpoint
– The current cooling setpoint. May include offsets from
configured occupied/unoccupied setpoints resulting from
Optimal Start
to
Demand
Limit
.
R: _°F/C
Summary of Contents for VAV Zone II
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