Orion Control Systems AAON VCCX2 User Manual

128
VCCX2 Controller Technical Guide
BACnet
®
Properties for the VCCX2 Controller
Parameter Object Description
Limits
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-adjustable
time period. Alarms on
the MODGAS-X and
Preheat-X Controller will
generate this alarm. This
alarm does not apply to
SCR Heat, Modulating Hot
Water or Steam Heating.
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.
BACnet
®
Properties for the VCCX2 Controller
Parameter Object Description
Limits
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.
Low Control
Mode Alarm
BI: 37 Occurs when the
Controlling Sensor
Temperature falls below
the Heating Mode Enable
Setpoint minus the
Control Mode Low Alarm
Oset. Applies only
to Space or Return Air
Temperature controlled
units.
Missing
Refrigerant
Module #1
BI: 38 Refrigerant Module #1 is
bad or missing.
Missing
Refrigerant
Module #2
BI: 39 Refrigerant Module #2 is
bad or missing.
Missing
Refrigerant
Module #3
BI: 40 Refrigerant Module #3 is
bad or missing.
Missing
Refrigerant
Module #4
BI: 41 Refrigerant Module #4 is
bad or missing.
Missing
Preheater
Board
BI: 42 Preheater Module is bad or
missing.
Missing
Reheat Board
BI: 43 The MHGR board is
congured but not
detected.
Missing Mod
Gas Board
BI: 44 The MODGAS board is
congured but not detected.
APPENDIX C
-
VCCX2 BACnet
®
VCCX2 BACnet
®
Parameters

Orion Control Systems AAON VCCX2 Specifications

General

Brand	Orion Control Systems
Model	AAON VCCX2
Category	Controller
Language	English