AAON Orion VCCX2 - VCCX2 BACnet Parameters Overview

116
VCCX2 Controller Technical Guide
BACnet
®
Properties for the VCCX2 Controller
Parameter Object Description
Limits
Application
Software
Version
AI: 1 Current version of the
software in the unit.
Control
Mode
AI: 2 Congured unit
application.
See Control Mode
Bits on page 133.
Control
Status
AI: 3 Current Occupied/
Unoccupied Status.
See Control Status
Bits on page 133.
Hvac Mode AI: 4 Current operational status. See HVAC Mode
Bits on page 133.
Control
Temperature
AI: 5 Current value of the
Control Temperature
Sensor.
Mode
Cooling
Setpoint
AI: 6 Cooling Mode Enable
Setpoint Mirror (adjusted
by the Space Sensor Slide
adjustment and/or Night
Setback osets.)
Mode Heat-
ing Setpoint
AI: 7 Heating Mode Enable
Setpoint Mirror (adjusted
by the Space Sensor Slide
adjustment and/or Night
Setback osets.)
Sensor Slide
Adjust Eect
AI: 8 Amount of Current Sensor
Slide Oset
Supply Air
Temperature
AI: 9 Current value of the
Supply Air
Temperature sensor
Supply Air
Setpoint
AI: 10 Current SAT Cooling or
Heating Setpoint if there
is no reset source; Current
calculated SAT setpoint
with Reset Source
Controlling
Coil Temp
Setpoint
AI: 11 This is the current
calculated Coil Suction
Temperature target during
Dehumidication Mode.
Space
Temperature
AI: 12 Current value of the Space
Temperature Sensor.
Space
Humidity
AI: 13 Current value of the Space
Humidity.
Return Air
Temperature
AI: 14 Current value of the
Return Temperature
Sensor.
Return Air
Humidity
AI: 15 Current value of the
Return Air Humidity.
BACnet
®
Properties for the VCCX2 Controller
Parameter Object Description
Limits
Outdoor Air
Temperature
AI: 16 Current value of the
Outdoor Air
Temperature Sensor.
Outdoor Air
Humidity
AI: 17 Current value of the
Outdoor Humidity Sensor.
Outdoor Air
Wetbulb
AI: 18 Current calculated
Outdoor Wetbulb
Temperature.
Outdoor Air
Dewpoint
AI: 19 Current Calculated
Outdoor Air Dewpoint
Temperature.
Supply Air
Setpoint
Reset Voltage
AI: 20 Supply Air Temp Setpoint
Reset Input Signal
Duct Static
Pressure
AI: 21 Current Duct Static
Pressure
Duct Static
Control
Signal
AI: 22 Current Duct Static
Control Signal (Fan VFD)
Building
Pressure
AI: 23 Current value of the
Building Pressure Sensor.
Building
Pressure
Control
Signal
AI: 24 Current Building Pressure
Control Signal
Outdoor
Airow
AI: 25 Current Outdoor Airow
Measurement.
Supply
Airow
AI: 26 Current Supply Airow
Measurement.
Return
Airow
AI: 27 Current Return Airow
Measurement.
Exhaust
Airow
AI: 28 Current Exhaust
Airow Measurement
Carbon
Dioxide
AI: 29 Current Indoor
CO
2
Level.
Desired
Economizer
Position
AI: 30 Current Modulating
Signal to the Economizer
Damper.
Economizer
Feedback
Position
AI: 31 Title 24 current position
of feedback from
Economizer actuator.
Return
Damper
Position
AI: 32 Current Signal to the
Return Air Damper if
using Return Air Bypass.
Return
Bypass
Position
AI: 33 Current Signal to the
Return Air Bypass
Damper if using Return
Air Bypass.
Modulating
Cooling
Position
AI: 34 Current percentage of the
Modulating Chilled Water
Signal.
NOTE: Objects labeled AI and BI are read-only. Objects
labeled AV are read/writeable. The only Sensor
values that can be written to are AV points 72 &
73 and 76 through 79.
APPENDIX C
-
VCCX2 BACnet
®
VCCX2 BACnet
®
Parameters