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Rooftop unit controller (zoning) · BACnet points list
AAON Auto-Zone 3 (AZ 3) Controller BACnet points list
Updated 12 November 2026
The Auto-Zone 3 (AZ 3) controller runs an AAON packaged unit, either alone or as the air source for an AZ 3 zoning system. It has an on-board BACnet MS/TP port. The object map has 35 read-only analog inputs, 69 writable analog values (setpoints, offsets, overrides and BAS-supplied sensor values) and 59 read-only binary inputs (enable status, alarms and relay status).
This page lists 163 BACnet objects for the AAON Auto-Zone 3 (AZ 3) Controller — 69 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from AAON’s own free documentation, linked below.
- Manufacturer
- AAON
- Model
- Auto-Zone 3 (AZ 3) Controller
- Equipment
- Rooftop unit controller (zoning)
- Equipment type
- Rooftop units, AHUs & DOAS
- BACnet objects
- 163 (69 writable)
- Transport
- BACnet MS/TP
- Firmware
- Not stated
- Also known as
- AZ 3, AZ3, Auto-Zone 3, AAON AZ3, G071000, SS8014, SS8015, Orion AZ3
Reference only, provided as-is: verify against AAON’s current documentation and the live device before use. Not official AAON information. Terms of use.
BMS integration notes: AAON Auto-Zone 3 (AZ 3) Controller
Connect the on-board MS/TP port and set address, device ID and baud. The BAS schedules the unit with AV 62 Schedule Force, adjusts the occupied heating and cooling setpoints, and can override HVAC mode, fan VFD and OA damper or supply space and outdoor values through AV 66-69. Read the alarm status AI and the alarm BIs.
Minimum points to map
The short list most integrators start with — enough to run the unit from a BMS. Map more as the job needs.
| Object | Name | Why | Access |
|---|---|---|---|
| AV 62 | Schedule Force | Occupancy: 0 auto, 1 occupied, 2 unoccupied | Write |
| AV 1 | Occupied Cooling Setpoint | Cooling starts one degree above this | Write |
| AV 2 | Occupied Heating Setpoint | Heating starts one degree below this | Write |
| AV 10 | Supply Air Cooling Setpoint | Discharge air target in cooling | Write |
| AI 3 | Control Status | Current occupancy status | Read |
| AI 4 | HVAC Mode | Current operating mode | Read |
| AI 7 | Supply Air Temperature | Discharge air temperature | Read |
| AI 31 | Alarm Status | Alarm status (coded) | Read |
Enable & remote start
AV 62 Schedule Force sets occupancy (0 = controller schedule, 1 = forced occupied, 2 = forced unoccupied). AV 63 overrides the HVAC mode and AV 64 and AV 65 override fan VFD and OA damper; writing Auto (0, or 65535 for the VFD and damper) hands control back.
Sensors & values from the BMS
Sensor inputs cannot be written; the BAS writes AV 66 BACnet Space Temperature, AV 67 BACnet Space Humidity, AV 68 BACnet Outdoor Air Temperature and AV 69 BACnet Outdoor Air Humidity.
Network setup
- MAC address (0-254, default 0), device ID (up to seven digits) and MS/TP baud rate (9600-76800, default 38400) are set on the controller's LCD Settings screens.
Watch out for
- Setpoints written over BACnet become permanent only at midnight; a power cycle before then loses them.
AAON Auto-Zone 3 (AZ 3) Controller BACnet objects
Type: AI, AO, AV, BI, BO, BV, MI/MO/MV (multi-state) · Access: Read read-only, Write writable, Command writable with a priority array.
| Description | States | |||||
|---|---|---|---|---|---|---|
| AI | 1 | Application Software Version | Current version of the software in the unit | Read | ||
| AI | 2 | Control Mode | Configured unit application | Read | ||
| AImin | 3 | Control Status | Current Occupied/ Unoccupied Status | Read | ||
| AImin | 4 | HVAC Mode | Current operational status | Read | ||
| AI | 5 | Control Temperature | Current value of the Control Temperature Sensor | Read | ||
| AI | 6 | Space Temperature | Current value of the Space Temperature Sensor | Read | ||
| AImin | 7 | Supply Air Temperature | Current value of the Supply Air Temperature Sensor | Read | ||
| AI | 8 | Coil Temperature | Current Coil Temperature value | Read | ||
| AI | 9 | Discharge Temperature | Current value of the Digital Compressor Discharge Air Temperature | Read | ||
| AI | 10 | Outdoor Air Temperature | Current value of the Outdoor Temperature Sensor | Read | ||
| AI | 11 | Return Air Temperature | Current value of the Return Temperature Sensor | Read | ||
| AI | 12 | Leaving Water Temperature | Current value of the Leaving Water Temperature Sensor | Read | ||
| AI | 13 | Outdoor Air Wetbulb Temperature | Current calculated Outdoor Wetbulb Temperature | Read | ||
| AI | 14 | Outdoor Air Dewpoint Temperature | Current Calculated Outdoor Air Dewpoint Temperature | Read | ||
| AI | 15 | Indoor Air Humidity | Current value of the Indoor Humidity Sensor | Read | ||
| AI | 16 | Outdoor Air Humidity | Current value of the Outdoor Humidity Sensor | Read | ||
| AI | 17 | Duct Static Pressure | Current Duct Static Pressure | Read | ||
| AI | 18 | Building Pressure | Current value of the Building Pressure Sensor | Read | ||
| AI | 19 | Suction Pressure | Current Suction Pressure Value | Read | ||
| AI | 20 | CO2 | Current Indoor CO2 Level | Read | ||
| AI | 21 | Cooling Setpoint | Occupied Cooling Mode Enable Setpoint Mirror | Read | ||
| AI | 22 | Heating Setpoint | Occupied Heating Mode Enable Setpoint Mirror | Read | ||
| AI | 23 | Supply Air Setpoint | Current SAT Cooling or Heating Setpoint if there | Read | ||
| AI | 24 | Coil Temperature Setpoint | Current calculated Coil Suction Temperature target during Dehumidification Mode | Read | ||
| AI | 25 | Economizer Position | Current signal percentage to the Economizer Damper | Read | ||
| AI | 26 | Fan VFD Signal | Current Supply Fan VFD Signal | Read | ||
| AI | 27 | Modulating Heating Position | Current percentage of the Modulating Heating signal (Hot Water | Read | ||
| AI | 28 | Modulating Cooling Position | Current percentage of the Modulating Cooling Signal (Chilled Water | Read | ||
| AI | 29 | Building Pressure Exhaust Control Signal | Current Relief VFD Fan/ Damper Signal | Read | ||
| AI | 30 | Reheat Valve Position | Current position of Modulating Reheat Valve | Read | ||
| AImin | 31 | Alarm Status | If Controller is in an Alarm Condition | Read | ||
| AI | 32 | Humidifier Valve Position | Current position of Humidifier Valve | Read | ||
| AI | 33 | Return Air Humidity | Return Air Humidity Reading | Read | ||
| AI | 34 | Sensor Slide Adjust Effect | Amount Of Current Sensor Slide Offset | Read | ||
| AI | 35 | Economizer Feedback for Title 24 | Current position of feedback from Economizer actuator | Read | ||
| AVmin | 1 | Occupied Cooling Setpoint | If the control temperature rises one degree above; range 1 to 110 | Write | ||
| AVmin | 2 | Occupied Heating Setpoint | If the control temperature drops one degree below; range 1 to 110 | Write | ||
| AV | 3 | VAV Tempering Outdoor Air Cooling Setpoint | Cooling Mode Enable Setpoint used in Supply Air Tempering; range 1 to 110 | Write | ||
| AV | 4 | VAV Tempering Outdoor Air Heating Setpoint | Heating Mode Enable Setpoint used Supply Air Tempering; range 1 to 110 | Write | ||
| AV | 5 | Unoccupied Cooling Offset | During the Unoccupied Mode of Operation; range 0 to 30 | Write | ||
| AV | 6 | Unoccupied Heating Offset | During the Unoccupied Mode of Operation; range 0 to 30 | Write | ||
| AV | 7 | Mode Select Deadband | This value is added to and subtracted; range 0 to 10 | Write | ||
| AV | 8 | Max Coil Setpoint Reset Limit | Highest that the Coil Temperature will be reset; range 35 to 70 | Write | ||
| AV | 9 | Min Coil Setpoint Reset Limit | Lowest that the Coil Temperature will be reset; range 35 to 70 | Write | ||
| AVmin | 10 | Supply Air Cooling Setpoint | Supply Air Cooling Setpoint; range 30 to 80 | Write | ||
| AV | 11 | Supply Air Heating Setpoint | Supply Air Heating Setpoint; range 40 to 240 | Write | ||
| AV | 12 | Max SAT Cooling Setpoint Reset Limit | If Supply Air Reset is configured; range 0 to 100 | Write | ||
| AV | 13 | Max SAT Heating Setpoint Reset Limit | If Supply Air Reset is configured; range 0 to 250 | Write | ||
| AV | 14 | Supply Air Cooling Staging Window | In Cooling Mode; range 1 to 30 | Write | ||
| AV | 15 | Supply Air Heating Staging Window | In Heating Mode; range 1 to 50 | Write | ||
| AV | 16 | Morning Warm-Up Target Temperature | If Morning Warm-Up is configured; range 50 to 90 | Write | ||
| AV | 17 | Morning Cool-Down Mode Target Temperature | If Morning Cool-Down is configured; range 5 to 90 | Write | ||
| AV | 18 | Mechanical Cooling Outdoor Air Lockout | The AZ 3 will Lockout Mechanical Cooling; range -29 to 100 | Write | ||
| AV | 19 | Mechanical Heating Outdoor Air Lockout | The AZ 3 will Lockout Mechanical Heating; range -29 to 150 | Write | ||
| AV | 20 | Low Supply Air Temperature Cutoff | Cooling will be disabled if the Supply Air Temperature; range 0 to 100 | Write | ||
| AV | 21 | High Supply Air Temperature Cutoff | Heating will be disabled if the Supply Air Temperature; range 0 to 250 | Write | ||
| AV | 22 | Outdoor Air Dewpoint Setpoint | On an MUA unit; range 35 to 80 | Write | ||
| AV | 23 | Economizer Enable Setpoint | The economizer is enabled if the outdoor drybulb; range -30 to 80 | Write | ||
| AV | 24 | Preheat Setpoint | If the Supply Fan is energized; range -30 to 70 | Write | ||
| AV | 25 | Space Sensor Calibration Offset | If the Space Temperature Sensor is reading incorrectly; range -100 to 100 | Write | ||
| AV | 26 | Supply Air Sensor Calibration Offset | If the Supply Air Temperature Sensor is reading incorrectly; range -100 to 100 | Write | ||
| AV | 27 | Return Air Sensor Calibration Offset | If the Return Temperature Sensor is reading incorrectly; range -100 to 100 | Write | ||
| AV | 28 | Outdoor Air Sensor Calibration Offset | If the Outdoor Temperature Sensor is reading incorrectly; range -100 to 100 | Write | ||
| AV | 29 | Coil Temperature Calibration Offset | If the Coil Temperature value is reading incorrectly; range -100 to 100 | Write | ||
| AV | 30 | Leaving Water Sensor Calibration Offset | If the Leaving Water Temperature Sensor is reading incorrectly; range -100 to 100 | Write | ||
| AV | 31 | CO2 Sensor Calibration Offset | If the CO2 Sensor is reading incorrectly; range -500 to 500 | Write | ||
| AV | 32 | Low Ambient Protection Setpoint | Temperature at which the Low Ambient Relay will activate; range -30 to 70 | Write | ||
| AV | 33 | SAT Cool Setpoint Reset Source Low Limit | If doing Supply Air Setpoint Reset; range -30 to 150 | Write | ||
| AV | 34 | SAT Cool Setpoint Reset Source High Limit | If doing Supply Air Setpoint Reset; range 1 to 150 | Write | ||
| AV | 35 | SAT Heat Setpoint Reset Source Low Limit | If doing Supply Air Setpoint Reset; range -30 to 150 | Write | ||
| AV | 36 | SAT Heat Setpoint Reset Source High Limit | If doing Supply Air Setpoint Reset; range 1 to 150 | Write | ||
| AV | 37 | Control Temperature High Alarm Offset | If the temperature of the controlling sensor rises above; range 0 to 50 | Write | ||
| AV | 38 | Control Temperature Low Alarm Offset | If the temperature of the controlling sensor falls below; range 0 to 50 | Write | ||
| AV | 39 | Heat Pump Compressor Heat Lockout | Compressor Heat will be locked out below this setpoint; range -29 to 100 | Write | ||
| AV | 40 | Minimum Main Fan VFD in Cooling Mode | In Single Zone VAV configuration; range 0 to 100 | Write | ||
| AV | 41 | Minimum Main Fan VFD in Heating Mode | In Single Zone VAV configuration; range 0 to 100 | Write | ||
| AV | 42 | Minimum Main Fan VFD in Vent Mode | Speed at which the VFD will operate; range 0 to 100 | Write | ||
| AV | 43 | Maximum Main Fan VFD in Heat Mode | In Single Zone VAV configuration; range 0 to 100 | Write | ||
| AV | 44 | Minimum Economizer Position | The minimum position of the Outdoor Air damper; range 0 to 100 | Write | ||
| AV | 45 | Maximum Economizer CO2 Reset Limit | The maximum value the Economizer Minimum Position can; range 0 to 100 | Write | ||
| AV | 46 | Maximum Economizer in Heat Mode | The maximum value the Economizer Maximum Position can; range 0 to 100 | Write | ||
| AV | 47 | Heat Pump Defrost Minimum Interval | The interval that must be met between Defrost Modes; range 10 Min. to 120 Min. | min | Write | |
| AV | 48 | Heat Pump Adaptive Defrost Increment | Value added to or subtracted from the Defrost Interval; range 0 to 30 | Write | ||
| AV | 49 | CO2 Minimum Setpoint | Threshold CO2 level at which the Economizer Min Damper; range 0 to 2000 | Write | ||
| AV | 50 | CO2 Maximum Setpoint | CO2 level at which the Economizer Min Damper Position; range 0 to 2000 | Write | ||
| AV | 51 | Duct Static Pressure Setpoint | Current Static Pressure Setpoint; range .10 to 3.0 | Write | ||
| AV | 52 | Duct Static Pressure Control Deadband | Value above and below the Duct Static Pressure Setpoint; range .01 to .5 | Write | ||
| AV | 53 | Building Pressure Control Setpoint | Building Pressure Setpoint; range -.20 to .20 | Write | ||
| AV | 54 | Building Pressure Control Deadband | Value above and below the Building Pressure Setpoint where; range .01 to .1 | Write | ||
| AV | 55 | SZ VAV Fan Speed Integral | The Integral Constant for Single Zone VAV Fan Control; range 0 to 10 | Write | ||
| AV | 56 | Warm-Up Supply Air Temperature Setpoint | Heating will be controlled to this Supply Air Setpoint; range 40 to 240 | Write | ||
| AV | 57 | Cool-Down Supply Air Temperature Setpoint | Cooling will be controlled to this Supply Air Setpoint; range 30 to 80 | Write | ||
| AV | 58 | Push-Button Override Duration | The Push-Button Override Duration Setpoint allows you to adjust; range 0 to 8 | Write | ||
| AV | 59 | Indoor Humidification Target | The Humidification Target is the Percent RH that you; range 0 to 100 | Write | ||
| AV | 60 | Indoor Dehumidification Setpoint | The Dehumidification Setpoint allows you to adjust the RH%; range 0 to 100 | Write | ||
| AV | 61 | Indoor Dehumidification Reset Setpoint | The Dehumidification Reset Setpoint allows you to adjust; range 0 to 100 | Write | ||
| AVmin | 62 | Schedule Force | Occupancy command | Write | 0=Auto (controller schedule), 1=Forced Occupied, 2=Forced Unoccupied | |
| AV | 63 | HVAC Mode Override | Forces the HVAC mode; Auto restores normal control | Write | 0=Auto, 1=Vent, 2=Cool, 3=Heat, 4=Vent Dehum, 5=Cool Dehum, 6=Heat Dehum | |
| AV | 64 | Fan VFD Override | Fixed fan VFD speed; range 0% to 100% | % | Write | 65535=Auto |
| AV | 65 | Outdoor Air Damper Override | Fixed OA damper position; range 0% to 100% | % | Write | 65535=Auto |
| AV | 66 | BACnet Space Temperature | BACnet designated Space Temperature; range 0 to 150 | Write | ||
| AV | 67 | BACnet Space Humidity | BACnet designated Space Humidity; range 0 to 100 | Write | ||
| AV | 68 | BACnet Outdoor Air Temperature | BACnet designated Outdoor Air Temperature; range 0 to 100 | Write | ||
| AV | 69 | BACnet Outdoor Air Humidity | BACnet designated Outdoor Air Humidity; range 0 to 100 | Write | ||
| BI | 1 | Cooling Enabled Status | Status that indicates Mechanical Cooling is enabled based | Read | ||
| BI | 2 | Heating Enabled Status | Status that indicates that Mechanical Heating is enabled based | Read | ||
| BI | 3 | Economizer Enabled Status | Status that indicates the Economizer is enabled based | Read | ||
| BI | 4 | Emergency Heat Enabled Status | Shows the Emergency Heat is enabled based | Read | ||
| BI | 5 | Bad Supply Air Sensor | Alarm that indicates a failure of the Supply Air | Read | ||
| BI | 6 | Bad Return Air Sensor | Failure of the Return Air Temperature Sensor | Read | ||
| BI | 7 | Bad Outdoor Air Sensor | Failure of the Outdoor Air Temperature Sensor | Read | ||
| BI | 8 | Bad Space Temp Sensor | Failure of the Space Temperature Sensor | Read | ||
| BI | 9 | Missing EM1 Expansion Module | EM1 Module is configured but not detected | Read | ||
| BI | 10 | Bad Coil Pressure Sensor | Failure of the Coil Pressure Sensor | Read | ||
| BI | 11 | Bad CO2 Sensor | Failure of the CO2 Sensor | Read | ||
| BI | 12 | Missing 12 Relay Expansion Module | E-BUS 12 Relay Expansion Module is configured | Read | ||
| BI | 13 | Bad Discharge Sensor | Failure of the Digital Compressor Discharge Temperature Sensor | Read | ||
| BI | 14 | Missing EM2 Expansion Module | EM2 Module is configured but not detected | Read | ||
| BI | 15 | Mechanical Cooling Alarm | Compressor Relays are enabled | Read | ||
| BI | 16 | Mechanical Heating Alarm | Heating Mode has been initiated but the Supply Air | Read | ||
| BI | 17 | Fan Proving Alarm | Alarm that indicates an Airflow failure from the Main | Read | ||
| BI | 18 | Dirty Filter/Generic Alarm | Depending on how the binary input is configured | Read | ||
| BI | 19 | Dirty Filter Alarm | Alarm that indicates the filters are dirty | Read | ||
| BI | 20 | Emergency Shutdown Alarm | Alarm that indicates that Emergency Shutdown has been activated | Read | ||
| BI | 21 | BAD_OA_ Damper Feedback Alarm | Alarm that indicates that OA Damper Feedback Signal | Read | ||
| BI | 22 | Title 24 Sensor Alarm | Outdoor Air or Supply Air Temperature Sensor is shorted | Read | ||
| BI | 23 | Title 24 Not Economizing When It Should | Economizer is enabled | Read | ||
| BI | 24 | Title 24 Economizing When It Should Not | Economizer is not enabled | Read | ||
| BI | 25 | Title 24 Damper Failure | Economizer is enabled | Read | ||
| BI | 26 | Title 24 Excess Outdoor Air | Economizer feedback is lost or Economizer is not following | Read | ||
| BI | 27 | High Supply Temp Cutoff Alarm | The Supply Air has risen above the Hi SAT | Read | ||
| BI | 28 | Low Supply Temp Cutoff Alarm | The Supply Air has fallen below the Low SAT | Read | ||
| BI | 29 | High Control Mode Alarm | Occurs when the Controlling Sensor Temperature rises above | Read | ||
| BI | 30 | Low Control Mode Alarm | Occurs when the Controlling Sensor Temperature falls below | Read | ||
| BI | 31 | Digital Compressor Cutoff Alarm | Occurs if the digital compressor discharge line temperature rises | Read | ||
| BI | 32 | Digital Compressor Lockout Alarm | Occurs if five Digital Compressor Cutoffs occur within four | Read | ||
| BI | 33 | Loop Water Proof of Flow Alarm | On a WSHP unit | Read | ||
| BI | 34 | Low Suction Pressure Alarm | On a WSHP unit | Read | ||
| BI | 35 | Unsafe Suction Pressure Alarm | On a WSHP unit | Read | ||
| BI | 36 | Low Leaving Water Temperature Alarm | On a WSHP unit | Read | ||
| BI | 37 | On Board Relay 1 Main Fan | Current status of Relay 1 on AZ 3 Main | Read | ||
| BI | 38 | On Board Relay 2 | Current status of Relay 2 on AZ 3 Main | Read | ||
| BI | 39 | On Board Relay 3 | Current status of Relay 3 on AZ 3 Main | Read | ||
| BI | 40 | On Board Relay 4 | Current status of Relay 4 on AZ 3 Main | Read | ||
| BI | 41 | On Board Relay 5 | Current status of Relay 5 on AZ 3 Main | Read | ||
| BI | 42 | On Board Relay 6 | Current status of Relay 6 on AZ 3 Main | Read | ||
| BI | 43 | Expansion Module Relay 1 | Current status of Relay 1 on the EM1 Expansion | Read | ||
| BI | 44 | Expansion Module Relay 2 | Current status of Relay 2 on the EM1 Expansion | Read | ||
| BI | 45 | Expansion Module Relay 3 | Current status of Relay 3 on the EM1 Expansion | Read | ||
| BI | 46 | Expansion Module Relay 4 | Current status of Relay 4 on the EM1 Expansion | Read | ||
| BI | 47 | Expansion Module Relay 5 | Current status of Relay 5 on the EM1 Expansion | Read | ||
| BI | 48 | 12 Relay Expansion Module Relay 1 | Current status of Relay 1 on the E-BUS 12 | Read | ||
| BI | 49 | 12 Relay Expansion Module Relay 2 | Current status of Relay 2 on the E-BUS 12 | Read | ||
| BI | 50 | 12 Relay Expansion Module Relay 3 | Current status of Relay 3 on the E-BUS 12 | Read | ||
| BI | 51 | 12 Relay Expansion Module Relay 4 | Current status of Relay 4 on the E-BUS 12 | Read | ||
| BI | 52 | 12 Relay Expansion Module Relay 5 | Current status of Relay 5 on the E-BUS 12 | Read | ||
| BI | 53 | 12 Relay Expansion Module Relay 6 | Current status of Relay 6 on the E-BUS 12 | Read | ||
| BI | 54 | 12 Relay Expansion Module Relay 7 | Current status of Relay 7 on the E-BUS 12 | Read | ||
| BI | 55 | 12 Relay Expansion Module Relay 8 | Current status of Relay 8 on the E-BUS 12 | Read | ||
| BI | 56 | 12 Relay Expansion Module Relay 9 | Current status of Relay 9 on the E-BUS 12 | Read | ||
| BI | 57 | 12 Relay Expansion Module Relay 10 | Current status of Relay 10 on the E-BUS 12 | Read | ||
| BI | 58 | 12 Relay Expansion Module Relay 11 | Current status of Relay 11 on the E-BUS 12 | Read | ||
| BI | 59 | 12 Relay Expansion Module Relay 12 | Current status of Relay 12 on the E-BUS 12 | Read |
No points match these filters.
Object ID lookup: AAON Auto-Zone 3 Controller point IDs by name
AI1Application Software VersionAI2Control ModeAI3Control StatusAI4HVAC ModeAI5Control TemperatureAI6Space TemperatureAI7Supply Air TemperatureAI8Coil TemperatureAI9Discharge TemperatureAI10Outdoor Air TemperatureAI11Return Air TemperatureAI12Leaving Water TemperatureAI13Outdoor Air Wetbulb TemperatureAI14Outdoor Air Dewpoint TemperatureAI15Indoor Air HumidityAI16Outdoor Air HumidityAI17Duct Static PressureAI18Building PressureAI19Suction PressureAI20CO2AI21Cooling SetpointAI22Heating SetpointAI23Supply Air SetpointAI24Coil Temperature SetpointAI25Economizer PositionAI26Fan VFD SignalAI27Modulating Heating PositionAI28Modulating Cooling PositionAI29Building Pressure Exhaust Control SignalAI30Reheat Valve PositionAI31Alarm StatusAI32Humidifier Valve PositionAI33Return Air HumidityAI34Sensor Slide Adjust EffectAI35Economizer Feedback for Title 24AV1Occupied Cooling SetpointAV2Occupied Heating SetpointAV3VAV Tempering Outdoor Air Cooling SetpointAV4VAV Tempering Outdoor Air Heating SetpointAV5Unoccupied Cooling OffsetAV6Unoccupied Heating OffsetAV7Mode Select DeadbandAV8Max Coil Setpoint Reset LimitAV9Min Coil Setpoint Reset LimitAV10Supply Air Cooling SetpointAV11Supply Air Heating SetpointAV12Max SAT Cooling Setpoint Reset LimitAV13Max SAT Heating Setpoint Reset LimitAV14Supply Air Cooling Staging WindowAV15Supply Air Heating Staging WindowAV16Morning Warm-Up Target TemperatureAV17Morning Cool-Down Mode Target TemperatureAV18Mechanical Cooling Outdoor Air LockoutAV19Mechanical Heating Outdoor Air LockoutAV20Low Supply Air Temperature CutoffAV21High Supply Air Temperature CutoffAV22Outdoor Air Dewpoint SetpointAV23Economizer Enable SetpointAV24Preheat SetpointAV25Space Sensor Calibration OffsetAV26Supply Air Sensor Calibration OffsetAV27Return Air Sensor Calibration OffsetAV28Outdoor Air Sensor Calibration OffsetAV29Coil Temperature Calibration OffsetAV30Leaving Water Sensor Calibration OffsetAV31CO2 Sensor Calibration OffsetAV32Low Ambient Protection SetpointAV33SAT Cool Setpoint Reset Source Low LimitAV34SAT Cool Setpoint Reset Source High LimitAV35SAT Heat Setpoint Reset Source Low LimitAV36SAT Heat Setpoint Reset Source High LimitAV37Control Temperature High Alarm OffsetAV38Control Temperature Low Alarm OffsetAV39Heat Pump Compressor Heat LockoutAV40Minimum Main Fan VFD in Cooling ModeAV41Minimum Main Fan VFD in Heating ModeAV42Minimum Main Fan VFD in Vent ModeAV43Maximum Main Fan VFD in Heat ModeAV44Minimum Economizer PositionAV45Maximum Economizer CO2 Reset LimitAV46Maximum Economizer in Heat ModeAV47Heat Pump Defrost Minimum IntervalAV48Heat Pump Adaptive Defrost IncrementAV49CO2 Minimum SetpointAV50CO2 Maximum SetpointAV51Duct Static Pressure SetpointAV52Duct Static Pressure Control DeadbandAV53Building Pressure Control SetpointAV54Building Pressure Control DeadbandAV55SZ VAV Fan Speed IntegralAV56Warm-Up Supply Air Temperature SetpointAV57Cool-Down Supply Air Temperature SetpointAV58Push-Button Override DurationAV59Indoor Humidification TargetAV60Indoor Dehumidification SetpointAV61Indoor Dehumidification Reset SetpointAV62Schedule ForceAV63HVAC Mode OverrideAV64Fan VFD OverrideAV65Outdoor Air Damper OverrideAV66BACnet Space TemperatureAV67BACnet Space HumidityAV68BACnet Outdoor Air TemperatureAV69BACnet Outdoor Air HumidityBI1Cooling Enabled StatusBI2Heating Enabled StatusBI3Economizer Enabled StatusBI4Emergency Heat Enabled StatusBI5Bad Supply Air SensorBI6Bad Return Air SensorBI7Bad Outdoor Air SensorBI8Bad Space Temp SensorBI9Missing EM1 Expansion ModuleBI10Bad Coil Pressure SensorBI11Bad CO2 SensorBI12Missing 12 Relay Expansion ModuleBI13Bad Discharge SensorBI14Missing EM2 Expansion ModuleBI15Mechanical Cooling AlarmBI16Mechanical Heating AlarmBI17Fan Proving AlarmBI18Dirty Filter/Generic AlarmBI19Dirty Filter AlarmBI20Emergency Shutdown AlarmBI21BAD_OA_ Damper Feedback AlarmBI22Title 24 Sensor AlarmBI23Title 24 Not Economizing When It ShouldBI24Title 24 Economizing When It Should NotBI25Title 24 Damper FailureBI26Title 24 Excess Outdoor AirBI27High Supply Temp Cutoff AlarmBI28Low Supply Temp Cutoff AlarmBI29High Control Mode AlarmBI30Low Control Mode AlarmBI31Digital Compressor Cutoff AlarmBI32Digital Compressor Lockout AlarmBI33Loop Water Proof of Flow AlarmBI34Low Suction Pressure AlarmBI35Unsafe Suction Pressure AlarmBI36Low Leaving Water Temperature AlarmBI37On Board Relay 1 Main FanBI38On Board Relay 2BI39On Board Relay 3BI40On Board Relay 4BI41On Board Relay 5BI42On Board Relay 6BI43Expansion Module Relay 1BI44Expansion Module Relay 2BI45Expansion Module Relay 3BI46Expansion Module Relay 4BI47Expansion Module Relay 5BI4812 Relay Expansion Module Relay 1BI4912 Relay Expansion Module Relay 2BI5012 Relay Expansion Module Relay 3BI5112 Relay Expansion Module Relay 4BI5212 Relay Expansion Module Relay 5BI5312 Relay Expansion Module Relay 6BI5412 Relay Expansion Module Relay 7BI5512 Relay Expansion Module Relay 8BI5612 Relay Expansion Module Relay 9BI5712 Relay Expansion Module Relay 10BI5812 Relay Expansion Module Relay 11BI5912 Relay Expansion Module Relay 12
Integration notes
- AI and BI objects are read-only; AV objects are read/write. Sensor inputs cannot be written directly; the BAS writes AV 66-69 instead.
- A setpoint written over BACnet is held in temporary memory until midnight, then saved as the new default; a power cycle before midnight loses it.
- AI 2-4 and AI 31 are coded values; the bit meanings are in the guide's tables on pages 95-96.
- Analog value units are not printed for most points; ranges are shown as printed.
- Source: Appendix C AZ 3 BACnet Parameters, guide pages 88-94.
Check it against the live device. A points list tells you what the controller can expose; the unit in front of you may differ by firmware or installed options. This list is provided as-is for reference only and may contain mistakes — confirming it before you write, map or commission anything is up to you (terms). Easy BACnet scans a network for BACnet IP devices from an Android phone, reads every object on the Auto-Zone 3 (AZ 3) Controller and exports what it actually has to Excel — free. New to BACnet? Start with what a BACnet points list is and what the object types mean.
Questions about the AAON Auto-Zone 3 (AZ 3) Controller
How many BACnet points does the AAON Auto-Zone 3 (AZ 3) Controller have?
This list has 163 BACnet objects: 35 analog inputs, 69 analog values, 59 binary inputs. The exact set on a given unit depends on its firmware, installed options and configuration.
Which AAON Auto-Zone 3 (AZ 3) Controller BACnet points are writable?
69 of the 163 objects accept a write. Points marked Command have a priority array: a write holds until it is released, so release it back to automatic when you are done.
Where is the official AAON Auto-Zone 3 (AZ 3) Controller BACnet documentation?
The source is Auto-Zone 3 Controller Technical Guide (G071000 Rev. 01B), revision 2021-01, published free by AAON at https://www.aaon.com/hubfs/Controls%20Literature/G071000-AZ3-TGD-01B%20210114.pdf.
What are the minimum BACnet points to integrate the AAON Auto-Zone 3 (AZ 3) Controller?
Start with AV 62 Schedule Force (Occupancy: 0 auto, 1 occupied, 2 unoccupied); AV 1 Occupied Cooling Setpoint (Cooling starts one degree above this); AV 2 Occupied Heating Setpoint (Heating starts one degree below this); AV 10 Supply Air Cooling Setpoint (Discharge air target in cooling); AI 3 Control Status (Current occupancy status); AI 4 HVAC Mode (Current operating mode); AI 7 Supply Air Temperature (Discharge air temperature); AI 31 Alarm Status (Alarm status (coded)).
How do I enable BMS control of the AAON Auto-Zone 3 (AZ 3) Controller?
AV 62 Schedule Force sets occupancy (0 = controller schedule, 1 = forced occupied, 2 = forced unoccupied). AV 63 overrides the HVAC mode and AV 64 and AV 65 override fan VFD and OA damper; writing Auto (0, or 65535 for the VFD and damper) hands control back.
Can the BMS supply sensor values to the AAON Auto-Zone 3 (AZ 3) Controller?
Sensor inputs cannot be written; the BAS writes AV 66 BACnet Space Temperature, AV 67 BACnet Space Humidity, AV 68 BACnet Outdoor Air Temperature and AV 69 BACnet Outdoor Air Humidity.
How do I check these points on the real Auto-Zone 3 (AZ 3) Controller?
Scan the network with a BACnet IP browser such as Easy BACnet, open the device and compare its object list with this table. Anything missing is usually an option that isn't installed or a point that is disabled in the controller's configuration.
More AAON BACnet points lists
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AAON Touchscreen Controller
AAON packaged units fitted with the AAON Touchscreen unit controller.
Also known as: AAON Touchscreen, Touch Screen Controller, AAON TS controller - General-purpose BACnet I/O controller
AAON BACnet General Controller (BGC)
AAON BGC general-purpose controller with 8 analog inputs, 8 binary inputs, 8 relays and 4 analog outputs.
Also known as: AAON BGC, BGC Controller, AAON BACnet General Controller, G042460, AAON general purpose I/O controller - DX chiller controller
AAON DX Chiller Controller
AAON packaged DX chillers (non-Turbocor compressors) with the Main DX Chiller Controller, refrigerant modules and optional waterside economizer and evaporative condenser modules.
Also known as: AAON DX Chiller Controller, Main DX Chiller Controller, G054280, SS1149, AAON DX chiller BACnet - DX chiller controller
AAON LF Chiller Controller
AAON LF series one- or two-circuit DX chillers with the LF Chiller Main Controller, optional pumping package and waterside economizer.
Also known as: AAON LF Chiller, LF Chiller Main Controller, G059100, SS1131, DT005683-001, LF chiller BACnet - DX chiller controller
AAON Main DX Barrel Chiller Controller
AAON DX barrel chillers with the Main DX Barrel Chiller Controller, up to two barrels and three refrigerant circuits per barrel, with optional pumping, WSE, evaporative condenser and vestibule modules.
Also known as: AAON DX Barrel Chiller, Main DX Barrel Chiller Controller, G070300, SS1140, DX barrel chiller BACnet - Air handler preheat controller
AAON PREHEAT-X Controller
AAON PREHEAT-X controllers that stage and modulate electric (SCR/SSR) preheat on AAON units and air handlers.
Also known as: PREHEAT-X, PREHEATX, Preheat-X, G086640, AAON preheat controller, Orion PREHEAT-X - Rooftop unit / air handler controller (gateway)
AAON SA Controller (via PT-Link II BACnet gateway)
AAON units with the SA (single-zone) controller, reached through the AAON PT-Link II BACnet MS/TP gateway.
Also known as: SA controller, AAON SA, PT-Link II, PT-Link BACnet5, G114680 - Rooftop unit / air handler controller
AAON Stratus Unit Manager (Stratus controls)
AAON units built with Stratus controls (Stratus Unit Manager, software 1.3.3).
Also known as: Stratus, AAON Stratus, Stratus Unit Manager, Stratus BACnet Points Guide, Stratus controller, Stratus Series - VAV / zone controller
AAON VAV/Zone BACnet Controller (VAVZB)
Pressure-independent and pressure-dependent VAV boxes and zone dampers controlled by the AAON VAV/Zone BACnet controller.
Also known as: VAVZB, VAV/Zone Controller, ASM02426, ASM02427, ASM02661, ASM02662, SS1116, SS1146, G067750 - Rooftop unit / air handler controller
AAON VCB-X Controller
AAON packaged rooftop units, air handlers, DOAS and water-source units controlled by the Orion VCB-X (OE335-26B-VCBX) unit controller.
Also known as: VCBX, VCB-X, Orion VCB-X, OE335-26B-VCBX, V28940, WattMaster VCB-X, AAON VCB-X BACnet - Rooftop unit / air handler controller
AAON VCCX-454 Controller
AAON rooftop units, air handlers, DOAS and self-contained units built for R-454B and controlled by the VCCX-454 unit controller with RM454 refrigerant modules.
Also known as: VCCX-454, VCCX 454, ASM07503, SS1188, AAON VCCX-454 controller, R-454B unit controller - Rooftop unit / air handler controller
AAON VCCX-454-GH Controller (grow house)
AAON R-454B units for indoor agriculture (grow rooms) controlled by the VCCX-454-GH controller.
Also known as: VCCX-454-GH, VCCX454-GH, ASM07792, SS1207, AAON grow house controller, indoor agriculture HVAC controller - Rooftop unit / air handler controller
AAON VCCX2 Controller
AAON rooftop units, air handlers and DOAS units controlled by the VCCX2 (ASM01698) unit controller.
Also known as: VCC-X2, VCCX, VCC-X, ASM01698, Orion VCCX2, SS1088 - Rooftop unit / air handler controller (gateway)
AAON VCM Controller (legacy, via PT-Link II BACnet gateway)
Older AAON units with the legacy VCM controller, reached through the AAON PT-Link II BACnet MS/TP gateway.
Also known as: VCM, AAON VCM, PT-Link II, PT-Link BACnet5, G114680 - Rooftop unit / air handler controller (gateway)
AAON VCM-X Controller (via PT-Link II BACnet gateway)
AAON rooftop units, air handlers and other equipment with the VCM-X controller, reached through the AAON PT-Link II BACnet MS/TP gateway.
Also known as: VCM-X, VCMX, PT-Link II, PT-Link BACnet5, G114680
Source: Auto-Zone 3 Controller Technical Guide · G071000 Rev. 01B · rev. 2021-01. Object names, instances and units are reproduced as published; descriptions are our own.