AAON Orion VCCX2 User Manual

130
VCCX2 Controller Technical Guide
BACnet
®
Properties for the VCCX2 Controller
Parameter Object Description
Limits
Remote
Forced
Heating
Status
BI: 10 Remote Forced Heating
Mode Binary Input Status
Remote
Force Dehum
Status
BI: 11 Remote Force
Dehumidication Mode
Binary Input Status
Bad Supply
Air Sensor
BI: 12 Alarm that indicates a
failure of the Supply Air
Sensor.
Bad Return
Air Sensor
BI: 13 Alarm that indicates a
failure of the Return Air
Sensor.
Bad Outdoor
Air Sensor
BI: 14 Failure of the Outdoor Air
Temperature Sensor.
Bad Space
Temp Sensor
BI: 15 Failure of the Space
Temperature Sensor. If
Space is the controlling
sensor, the unit will shut
down.
Bad Carbon
Dioxide
Sensor
BI: 16 Failure of the CO
2
Sensor.
Bad Building
Pressure
Sensor
BI: 17 Alarm indicating missing
or failed Building
Pressure Sensor.
Bad Outdoor
Airow
Sensor
BI: 18 An Outdoor Airow
Sensor is congured, but
not detected.
Bad Exhaust
Airow
Sensor
BI: 19 An Exhaust Airow
Sensor is congured, but
not detected.
Bad Supply
Airow
Sensor
BI: 20 A Supply Airow Sensor
is congured, but not
detected.
Bad Return
Airow
Sensor
BI: 21 A Return Airow
Sensor is congured, but
not detected.
Mechanical
Cooling
Alarm
BI: 22 Compressor Relays are
enabled but the Supply Air
Temperature has not fallen
5°F w/in a user-adjustable
time period. This does
not apply to Modulating
Cooling.
Mechanical
Heating
Alarm
BI: 23 Heating Mode has been
initiated but the Supply Air
Temperature has not risen
5°F w/in a user-adjust-
able time period. Alarms
on the MODGAS-X &
Preheat-X Controller will
generate this alarm. This
alarm does not apply to
SCR Heat, Modulating
Hot Water or Steam
Heating.
BACnet
®
Properties for the VCCX2 Controller
Parameter Object Description
Limits
Fan Proving
Alarm
BI: 24 Alarm that indicates an
Airow failure from the
Main Fan. Heating and
Cooling will be disabled.
Dirty Filter
Alarm
BI: 25 Alarm that indicates
the lters are dirty.
Emergency
Shutdown
Alarm
BI: 26 Alarm that indicates
that Emergency Shutdown
has been activated. Will
shut the unit down.
Relay
Runtime
Warning
BI: 27 Indicates when any of the
congured relays exceeds
a congured number of
hours of runtime. Can be
used to schedule service,
etc.
Economizer
Missing
Alarm
BI: 28 Title 24 operation
indicates missing
economizer feedback.
Economizer
Title 24
Failure A
BI: 29 Title 24 Air Temperature
Sensor Failure.
Economizer
Title 24
Failure B
BI: 30 Title 24 Not Economizing
when it should.
Economizer
Title 24
Failure C
BI: 31 Title 24 Economizing
when it should not.
Economizer
Title 24
Failure D
BI: 32 Title 24 Damper Not
Modulating.
Economizer
Title 24
Failure E
BI: 33 Title 24 Excess Outdoor
Air.
High Supply
Temp Cuto
BI: 34 The Supply Air has risen
above the Hi SAT Cuto
Setpoint. Heating stages
will deactivate and the
fan continues to run. This
alarm is generated.
Low Supply
Temp Cuto
BI: 35 The Supply Air has fallen
below the Low SAT Cuto
Setpoint. Cooling stages
will deactivate. After 10
minutes, the fan will
deactivate and this alarm is
generated.
High Control
Mode Alarm
BI: 36 Occurs when the
Controlling Sensor
Temperature rises above
the Cooling Mode Enable
Setpoint plus the Control
Mode High Alarm Oset.
Applies only to Space or
Return Air Temperature
controlled units.
APPENDIX C
-
VCCX2 BACnet
®
VCCX2 BACnet
®
Parameters

AAON Orion VCCX2 Specifications

General

Brand	AAON
Model	Orion VCCX2
Category	Controller
Language	English