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Rooftop unit / air handler controller · BACnet points list
AAON VCCX2 Controller BACnet points list
Updated 28 October 2026
Short answer
The VCCX2 is AAON's main unit controller and has an on-board BACnet MS/TP port. Its object map has about 280 read-only analog inputs (temperatures, pressures, airflow, compressor and refrigerant module data), about 100 writable analog values (setpoints, offsets, overrides and BAS-supplied sensor values) and about 150 read-only binary inputs (alarms, relay and module status).
This page lists 534 BACnet objects for the AAON VCCX2 Controller — 99 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
- VCCX2 Controller
- Equipment
- Rooftop unit / air handler controller
- Equipment type
- Rooftop units, AHUs & DOAS
- BACnet objects
- 534 (99 writable)
- Transport
- BACnet MS/TP
- Firmware
- Not stated
- Also known as
- VCC-X2, VCCX, VCC-X, ASM01698, Orion VCCX2, SS1088
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BMS integration notes: AAON VCCX2 Controller
Integration in brief
Connect the on-board MS/TP port and set MAC address, device ID and baud on the controller's LCD BACnet screens. The BAS schedules the unit with AV 67 Schedule Force, adjusts setpoints with the occupied heating/cooling and supply-air AVs, and can supply sensor values through AV 72-79 when the controller is configured for it. Alarms are read from the BI objects.
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 67 | Schedule Force | Occupied/unoccupied command from the BAS | Write |
| AV 1 | Occupied Cooling Setpoint | Cooling starts one deadband above this, °F | Write |
| AV 2 | Occupied Heating Setpoint | Heating starts one deadband below this, °F | Write |
| AV 10 | Supply Air Cooling Setpoint | Discharge air temp target in cooling, °F | Write |
| AI 3 | Control Status | Current occupancy status | Read |
| AI 4 | HVAC Mode | Off, vent, cool, heat, dehum, purge or defrost mode | Read |
| AI 5 | Control Temperature | Reading from the configured control sensor | Read |
| AI 9 | Supply Air Temperature | Discharge air temp leaving the unit | Read |
| AI 144 | Alarm Status | Summary alarm | Read |
Enable & remote start
Occupancy comes from AV 67 Schedule Force (0 = follow the controller schedule, 1 = forced occupied, 2 = forced unoccupied), the internal week schedule, a GPC-XP broadcast schedule, or the BI4 remote forced occupied contact. AV 68, AV 69, AV 70 and AV 71 override HVAC mode, fan VFD, OA damper and supply setpoint; writing Auto (0 or 65535 as listed) hands control back.
Sensors & values from the BMS
If the controller is configured for it, the BAS can write AV 72 Space Temperature, AV 73 Space Humidity, AV 76 Relief Pressure, AV 77 CO2, AV 78 Outdoor Air Temperature and AV 79 Outdoor Air Humidity; these are the only sensor values the BAS may write. The guide gives no refresh timeout for them. A relief pressure value received over BACnet that is out of range raises an alarm.
Network setup
- MAC address 0-127, default 1; set on the LCD BACnet screen.
- Device ID up to seven digits, set on the same screen; no default is printed.
- MS/TP baud 9600, 19200, 38400, 57600 or 76800; default 38400.
Watch out for
- Writing AV 70 OA damper override to anything between 0 and 100 % while compressors run locks the compressors out; use AV 49 minimum position instead.
- An emergency shutdown (smoke detector/firestat input) cancels all BACnet override commands.
- Refrigerant module, preheater, MODGAS, MHGRV and expansion-board points only report when that hardware is installed.
- AI 159-248 RSMZ status points are bit strings; decode them with the guide's bitfield tables.
AAON VCCX2 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 | 0=Supply Air Cooling Only, 1=Supply Air Tempering, 2=Outdoor Temperature Control, 3=Return Air Constant Volume Mode, 4=Space Temp Constant Volume Mode, 5=Space Temp w/ High OA Content, 6=Single Zone VAV | |
| AImin | 3 | Control Status | Current Occupied/Unoccupied Status | Read | 0=Unoccupied, 1=Occupied, 2=Override Mode, 3=Holiday Unoccupied, 4=Holiday Occupied, 5=Forced Occupied, 6=Forced Unoccupied, 7=Remote Contact Occupied, 8-10=Reserved, 11=OA Damper Calibration | |
| AImin | 4 | HVAC Mode | Current operational status | Read | 0=Off, 1=Vent Mode, 2=Cooling Mode, 3=Heating Mode, 4=Vent RH Mode, 5=Cooling RH Mode, 6=Heating RH Mode, 7=Warm Up Mode, 8=Purge Mode, 9=Defrost Mode, 10=Cool Down Mode | |
| AImin | 5 | Control Temperature | Control Temperature Sensor | Read | ||
| AI | 6 | Mode Cooling Setpoint | Cooling Mode Enable Setpoint Mirror (adjusted by the Space Sensor Slide adjustment | Read | ||
| AI | 7 | Mode Heating Setpoint | Heating Mode Enable Setpoint Mirror (adjusted by the Space Sensor Slide adjustment | Read | ||
| AI | 8 | Sensor Slide Adjust Effect | Amount of Current Sensor Slide Adjust | Read | ||
| AImin | 9 | Supply Air Temperature | Supply Air Temperature sensor | Read | ||
| AI | 10 | Supply Air Setpoint | Current SAT Cooling or Heating Setpoint if there is no reset source | Read | ||
| AI | 11 | Controlling Coil Temp Setpoint | Current calculated Coil Suction Temperature target during Dehumidification Mode | Read | ||
| AI | 12 | Space Temperature | Space Temperature Sensor | Read | ||
| AI | 13 | Space Humidity | Space Humidity | Read | ||
| AI | 14 | Return Air Temperature | Return Temperature Sensor | Read | ||
| AI | 15 | Return Air Humidity | Return Air Humidity | Read | ||
| AI | 16 | Outdoor Air Temperature | Outdoor Air Temperature Sensor | Read | ||
| AI | 17 | Outdoor Air Humidity | Outdoor Humidity Sensor | Read | ||
| AI | 18 | Outdoor Air Wetbulb | Current calculated Outdoor Wetbulb Temperature | Read | ||
| AI | 19 | Outdoor Air Dewpoint | Current Calculated Outdoor Air Dewpoint Temperature | Read | ||
| AI | 20 | Supply Air Setpoint Reset Voltage | Supply Air Temp Setpoint Reset Input Signal | Read | ||
| AI | 21 | Duct Static Pressure | Current Duct Static Pressure | Read | ||
| AI | 22 | Duct Static Control Signal | Current Duct Static Control Signal (Fan VFD) | Read | ||
| AI | 23 | Building Pressure | Building Pressure Sensor | Read | ||
| AI | 24 | Building Pressure Control Signal | Current Building Pressure Control Signal | Read | ||
| AI | 25 | Outdoor Airflow | Current Outdoor Airflow Measurement | Read | ||
| AI | 26 | Supply Airflow | Current Supply Airflow Measurement | Read | ||
| AI | 27 | Return Airflow | Current Return Airflow Measurement | Read | ||
| AI | 28 | Exhaust Airflow | Current Exhaust Airflow Measurement | Read | ||
| AI | 29 | Carbon Dioxide | Current Indoor CO2 Level | Read | ||
| AI | 30 | Desired Economizer Position | Current Modulating Signal to the Economizer Damper | Read | ||
| AI | 31 | Economizer Feedback Position | Title 24 current position of feedback from Economizer actuator | Read | ||
| AI | 32 | Return Damper Position | Current Signal to the Return Air Damper if using Return Air Bypass | Read | ||
| AI | 33 | Return Bypass Position | Current Signal to the Return Air Bypass Damper if using Return Air | Read | ||
| AI | 34 | Modulating Cooling Position | Current percentage of the Modulating Chilled Water Signal | Read | ||
| AI | 35 | Modulating Heat Position | Current percentage of the Modulating Heating signal (Hot Water or SCR heat) | Read | ||
| AI | 36 | Preheater Leaving Air Temp #1 | Current Preheater Leaving Air Temperature #1 | Read | ||
| AI | 37 | Preheater Leaving Air Temp #2 | Current Preheater Leaving Air Temperature #2 | Read | ||
| AI | 38 | Preheater Entering Air Temp | Current Entering Air Temp for Preheater | Read | ||
| AI | 39 | Preheater Setpoint Reset Voltage | Current Voltage Reset Input Value for Preheater | Read | ||
| AI | 40 | Preheater SCR Output Signal | Current Modulating Heat Signal for Preheater | Read | ||
| AI | 41 | Preheater PWM Output Signal | Current PWM Output Signal for Preheater | Read | ||
| AI | 42 | Mod Hot Gas Reheat Valve Position | Current position of MHGRV Modulating Hot Gas Reheat Valve | Read | ||
| AI | 43 | Mod Gas Heat Valve Position | Current position of MODGAS Modulating Gas Valve Control | Read | ||
| AI | 44 | A1 Compressor Signal | Current Compressor A1 Modulating Cooling Signal | Read | ||
| AI | 45 | A2 Compressor Signal | Current Compressor A2 Modulating Cooling Signal | Read | ||
| AI | 46 | A1 Condenser Signal | Current A1 Condenser Signal | Read | ||
| AI | 47 | A2 Condenser Signal | Current A2 Condenser Signal or WSE Bypass Valve Signal | Read | ||
| AI | 48 | A1 Suction Pressure | Current Compressor A1 Suction Pressure | Read | ||
| AI | 49 | A2 Suction Pressure | Current Compressor A2 Suction Pressure | Read | ||
| AI | 50 | A1 Head Pressure | Current Compressor A1 Head Pressure | Read | ||
| AI | 51 | A2 Head Pressure | Current Compressor A2 Head Pressure | Read | ||
| AI | 52 | A1 Saturation Temperature | Current Compressor A1 Coil Saturation Temperature | Read | ||
| AI | 53 | A2 Saturation Temperature | Current Compressor A2 Coil Saturation Temperature | Read | ||
| AI | 54 | A1 Suction Line Temperature | Current Compressor A1 Suction Line Temperature | Read | ||
| AI | 55 | A2 Suction Line Temperature | Current Compressor A2Suction Line Temperature | Read | ||
| AI | 56 | A1 Condenser Suction Temp (Heat Pump) | Current Compressor A1 Suction Line Temperature (Heat Pump) | Read | ||
| AI | 57 | A2 Condenser Suction Temp (Heat Pump) | Current Compressor A2 Suction Line Temperature (Heat Pump) | Read | ||
| AI | 58 | A1 Superheat Temperature | Current Compressor A1 Superheat Temperature | Read | ||
| AI | 59 | A2 Superheat Temperature | Current Compressor A2 Superheat Temperature | Read | ||
| AI | 60 | Condenser A1 Superheat (Heat Pump) | Current Compressor A1 Superheat Temperature (Heat Pump) | Read | ||
| AI | 61 | Condenser A2 Superheat (Heat Pump) | Current Compressor A2 Superheat Temperature (Heat Pump) | Read | ||
| AI | 62 | A1 Expansion Valve Position | Current position of Compressor A1 Expansion Valve | Read | ||
| AI | 63 | A2 Expansion Valve Position | Current position of Compressor A2 Expansion Valve | Read | ||
| AI | 64 | Condenser A1 Expansion Valve Position | Current position of Condenser A1 Expansion Valve | Read | ||
| AI | 65 | Condenser A2 Expansion Valve Position | Current position of Condenser A2 Expansion Valve | Read | ||
| AI | 66 | A1 Discharge Temperature | Current Compressor A1 Discharge Temperature | Read | ||
| AI | 67 | A2 Discharge Temperature | Current Compressor A2 Discharge Temperature | Read | ||
| AI | 68 | A1 Leaving Water Temp | Current A1 Leaving Water Temperature for WSHP | Read | ||
| AI | 69 | B1 Compressor Signal | Current Compressor B1 Modulating Cooling Signal | Read | ||
| AI | 70 | B2 Compressor Signal | Current Compressor B2 Modulating Cooling Signal | Read | ||
| AI | 71 | B1 Condenser Signal | Current B1 Condenser Signal | Read | ||
| AI | 72 | B2 Condenser Signal | Current B2 Condenser Signal or WSE Bypass Valve Signal | Read | ||
| AI | 73 | B1 Suction Pressure | Current Compressor B1 Suction Pressure | Read | ||
| AI | 74 | B2 Suction Pressure | Current Compressor B2 Suction Pressure | Read | ||
| AI | 75 | B1 Head Pressure | Current Compressor B1 Head Pressure | Read | ||
| AI | 76 | B2 Head Pressure | Current Compressor B2 Head Pressure | Read | ||
| AI | 77 | B1 Saturation Temperature | Current Compressor B1 Coil Saturation Temperature | Read | ||
| AI | 78 | B2 Saturation Temperature | Current Compressor B2 Coil Saturation Temperature | Read | ||
| AI | 79 | B1 Suction Line Temperature | Current Compressor B1 Suction Line Temperature | Read | ||
| AI | 80 | B2 Suction Line Temperature | Current Compressor B2 Suction Line Temperature | Read | ||
| AI | 81 | B1 Condenser Suction Temp (Heat Pump) | Current Compressor B1 Suction Line Temperature (Heat Pump) | Read | ||
| AI | 82 | B2 Condenser Suction Temp (Heat Pump) | Current Compressor B2 Suction Line Temperature (Heat Pump) | Read | ||
| AI | 83 | B1 Superheat Temperature | Current Compressor B1 Superheat Temperature | Read | ||
| AI | 84 | B2 Superheat Temperature | Current Compressor B2 Superheat Temperature | Read | ||
| AI | 85 | Condenser B1 Superheat (Heat Pump) | Current Compressor B1 Superheat Temperature (Heat Pump) | Read | ||
| AI | 86 | Condenser B2 Superheat (Heat Pump) | Current Compressor B2 Superheat Temperature (Heat Pump) | Read | ||
| AI | 87 | B1 Expansion Valve Position | Current position of Compressor B1 Expansion Valve | Read | ||
| AI | 88 | B2 Expansion Valve Position | Current position of Compressor B2 Expansion Valve | Read | ||
| AI | 89 | Condenser B1 Expansion Valve Position | Current position of Condenser B1 Expansion Valve | Read | ||
| AI | 90 | Condenser B2 Expansion Valve Position | Current position of Condenser B2 Expansion Valve | Read | ||
| AI | 91 | B1 Discharge Temperature | Current Compressor B1 Discharge Temperature | Read | ||
| AI | 92 | B2 Discharge Temperature | Current Compressor B2 Discharge Temperature | Read | ||
| AI | 93 | B1 Leaving Water Temp | Current B1 Leaving Water Temperature for WSHP | Read | ||
| AI | 94 | C1 Compressor Signal | Current Compressor C1 Modulating Cooling Signal | Read | ||
| AI | 95 | C2 Compressor Signal | Current Compressor C2 Modulating Cooling Signal | Read | ||
| AI | 96 | C1 Condenser Signal | Current C1 Condenser Signal | Read | ||
| AI | 97 | C2 Condenser Signal | Current C2 Condenser Signal or WSE Bypass Valve Signal | Read | ||
| AI | 98 | C1 Suction Pressure | Current Compressor C1 Suction Pressure | Read | ||
| AI | 99 | C2 Suction Pressure | Current Compressor C2 Suction Pressure | Read | ||
| AI | 100 | C1 Head Pressure | Current Compressor C1 Head Pressure | Read | ||
| AI | 101 | C2 Head Pressure | Current Compressor C2 Head Pressure | Read | ||
| AI | 102 | C1 Saturation Temperature | Current Compressor C1 Coil Saturation Temperature | Read | ||
| AI | 103 | C2 Saturation Temperature | Current Compressor C2 Coil Saturation Temperature | Read | ||
| AI | 104 | C1 Suction Line Temperature | Current Compressor C1 Suction Line Temperature | Read | ||
| AI | 105 | C2 Suction Line Temperature | Current Compressor C2 Suction Line Temperature | Read | ||
| AI | 106 | C1 Condenser Suction Temp (Heat Pump) | Current Compressor C1 Suction Line Temperature (Heat Pump) | Read | ||
| AI | 107 | C2 Condenser Suction Temp (Heat Pump) | Current Compressor C2 Suction Line Temperature (Heat Pump) | Read | ||
| AI | 108 | C1 Superheat Temperature | Current Compressor C1 Superheat Temperature | Read | ||
| AI | 109 | C2 Superheat Temperature | Current Compressor C2 Superheat Temperature | Read | ||
| AI | 110 | Condenser C1 Superheat (Heat Pump) | Current Compressor C1 Superheat Temperature (Heat Pump) | Read | ||
| AI | 111 | Condenser C2 Superheat (Heat Pump) | Current Compressor C2 Superheat Temperature (Heat Pump) | Read | ||
| AI | 112 | C1 Expansion Valve Position | Current position of Compressor C1 Expansion Valve | Read | ||
| AI | 113 | C2 Expansion Valve Position | Current position of Compressor C2 Expansion Valve | Read | ||
| AI | 114 | Condenser C1 Expansion Valve Position | Current position of Condenser C1 Expansion Valve | Read | ||
| AI | 115 | Condenser C2 Expansion Valve Position | Current position of Condenser C2 Expansion Valve | Read | ||
| AI | 116 | C1 Discharge Temperature | Current Compressor C1 Discharge Temperature | Read | ||
| AI | 117 | C2 Discharge Temperature | Current Compressor C2 Discharge Temperature | Read | ||
| AI | 118 | C1 Leaving Water Temp | Current C1 Leaving Water Temperature for WSHP | Read | ||
| AI | 119 | D1 Compressor Signal | Current Compressor D1 Modulating Cooling Signal | Read | ||
| AI | 120 | D2 Compressor Signal | Current Compressor D2 Modulating Cooling Signal | Read | ||
| AI | 121 | D1 Condenser Signal | Current D1 Condenser Signal | Read | ||
| AI | 122 | D2 Condenser Signal | Current D2 Condenser Signal or WSE Bypass Valve Signal | Read | ||
| AI | 123 | D1 Suction Pressure | Current Compressor D1 Suction Pressure | Read | ||
| AI | 124 | D2 Suction Pressure | Current Compressor D2 Suction Pressure | Read | ||
| AI | 125 | D1 Head Pressure | Current Compressor D1 Head Pressure | Read | ||
| AI | 126 | D2 Head Pressure | Current Compressor D2 Head Pressure | Read | ||
| AI | 127 | D1 Saturation Temperature | Current Compressor D1 Coil Saturation Temperature | Read | ||
| AI | 128 | D2 Saturation Temperature | Current Compressor D2 Coil Saturation Temperature | Read | ||
| AI | 129 | D1 Suction Line Temperature | Current Compressor D1 Suction Line Temperature | Read | ||
| AI | 130 | D2 Suction Line Temperature | Current Compressor D2 Suction Line Temperature | Read | ||
| AI | 131 | D1 Condenser Suction Temp (Heat Pump) | Current Compressor D1 Suction Line Temperature (Heat Pump) | Read | ||
| AI | 132 | D2 Condenser Suction Temp (Heat Pump) | Current Compressor D2 Suction Line Temperature (Heat Pump) | Read | ||
| AI | 133 | D1 Superheat Temperature | Current Compressor D1 Superheat Temperature | Read | ||
| AI | 134 | D2 Superheat Temperature | Current Compressor D2 Superheat Temperature | Read | ||
| AI | 135 | Condenser D1 Superheat (Heat Pump) | Current Compressor D1 Superheat Temperature (Heat Pump) | Read | ||
| AI | 136 | Condenser D2 Superheat (Heat Pump) | Current Compressor D2 Superheat Temperature (Heat Pump) | Read | ||
| AI | 137 | D1 Expansion Valve Position | Current position of Compressor D1 Expansion Valve | Read | ||
| AI | 138 | D2 Expansion Valve Position | Current position of Compressor D2 Expansion Valve | Read | ||
| AI | 139 | Condenser D1 Expansion Valve Position | Current position of Condenser D1 Expansion Valve | Read | ||
| AI | 140 | Condenser D2 Expansion Valve Position | Current position of Condenser D2 Expansion Valve | Read | ||
| AI | 141 | D1 Discharge Temperature | Current Compressor D1 Discharge Temperature | Read | ||
| AI | 142 | D2 Discharge Temperature | Current Compressor D2 Discharge Temperature | Read | ||
| AI | 143 | D1 Leaving Water Temp | Current D1 Leaving Water Temperature for WSHP | Read | ||
| AImin | 144 | Alarm Status | Alarm condition summary | Read | 0=No Alarms, 1=Alarm(s) Present | |
| AI | 145 | Outdoor Enthalpy | Current Outdoor Enthalpy | Read | ||
| AI | 146 | Plenum Pressure | Reserved | Read | ||
| AI | 147 | Return Fan Speed | Reserved | Read | ||
| AI | 148 | Plenum Calculated Setpoint | Reserved | Read | ||
| AI | 149 | Return Air Enthalpy Status | Return Air Enthalpy | Read | ||
| AI | 150 | Current Duct Static Setpoint | Status of the duct static setpoint | Read | ||
| AI | 151 | RSMZ 1 Condenser Fan | Current RSMZ 1 condenser fan signal | Read | ||
| AI | 152 | RSMZ 1 VFD Comp Perc | Current RSMZ 1 VFD Compressor Percentage | Read | ||
| AI | 153 | RSMZ 1 Discharge Pressure | Current RSMZ 1 discharge pressure | Read | ||
| AI | 154 | RSMZ 1 Suction Pressure | Current RSMZ 1 Suction Pressure | Read | ||
| AI | 155 | RSMZ 1 Suction Line Temp | Current RSMZ 1 Suction Line Temperature | Read | ||
| AI | 156 | RSMZ 1 Saturation Temp | Current RSMZ 1 Saturation Temperature | Read | ||
| AI | 157 | RSMZ 1 Superheat | Current RSMZ 1 Superheat Temperature | Read | ||
| AI | 158 | RSMZ 1 EEV Position | Current RSMZ 1 EEV Valve Position | Read | ||
| AI | 159 | RSMZ 1 Warnings | Current RSMZ 1 Warnings | Read | ||
| AI | 160 | RSMZ 1 Comp VFD Alarms 1 | Current RSMZ 1 Comp VFD Alarms 1 | Read | ||
| AI | 161 | RSMZ 1 Comp VFD Alarms 2 | Current RSMZ 1 Comp VFD Alarms 2 | Read | ||
| AI | 162 | RSMZ 1 Comp VFD Drive Status | Current RSMZ 1 Comp VFD drive status | Read | ||
| AI | 163 | RSMZ 1 Compressor Current | Current reading in Amps that the RSMZ 1 compressor is using | Read | ||
| AI | 164 | RSMZ 1 Discharge Line Temp | Current RSMZ 1 discharge line temperature | Read | ||
| AI | 165 | RSMZ 1 Faults | Current RSMZ 1 Faults | Read | ||
| AI | 166 | RSMZ 1 Lockouts | Current RSMZ 1 Lockouts | Read | ||
| AI | 167 | RSMZ 2 Condenser Fan | Current RSMZ 2 condenser fan signal | Read | ||
| AI | 168 | RSMZ 2 VFD Comp Perc | Current RSMZ 2 VFD Compressor Percentage | Read | ||
| AI | 169 | RSMZ 2 Discharge Pressure | Current RSMZ 2 discharge pressure | Read | ||
| AI | 170 | RSMZ 2 Suction Pressure | Current RSMZ 2 Suction Pressure | Read | ||
| AI | 171 | RSMZ 2 Suction Line Temp | Current RSMZ 2 Suction Line Temperature | Read | ||
| AI | 172 | RSMZ 2 Saturation Temp | Current RSMZ 2 Saturation Temperature | Read | ||
| AI | 173 | RSMZ 2 Superheat | Current RSMZ 2 Superheat temperature | Read | ||
| AI | 174 | RSMZ 2 EEV Position | Current RSMZ 2 EEV valve position | Read | ||
| AI | 175 | RSMZ 2 Warnings | Current RSMZ 2 Warnings | Read | ||
| AI | 176 | RSMZ 2 Comp VFD Alarms 1 | Current RSMZ 2 Comp VFD Alarms 1 | Read | ||
| AI | 177 | RSMZ 2 Comp VFD Alarms 2 | Current RSMZ 2 Comp VFD Alarms 2 | Read | ||
| AI | 178 | RSMZ 2 Comp VFD Drive Status | Current RSMZ 2 Comp VFD drive status | Read | ||
| AI | 179 | RSMZ 2 Compressor Current | Current reading in Amps that the RSMZ 2 compressor is using | Read | ||
| AI | 180 | RSMZ 2 Discharge Line Temp | Current RSMZ 2 discharge line temperature | Read | ||
| AI | 181 | RSMZ 2 Faults | Current RSMZ 2 Faults | Read | ||
| AI | 182 | RSMZ 2 Lockouts | Current RSMZ 2 Lockouts | Read | ||
| AI | 183 | RSMZ 3 Condenser Fan | Current RSMZ 3 condenser fan signal | Read | ||
| AI | 184 | RSMZ 3 Reheat Valve 1 | Current RSMZ 3 Reheat Valve 1 position | Read | ||
| AI | 185 | RSMZ 3 Discharge Pressure | Current RSMZ 3 discharge pressure | Read | ||
| AI | 186 | RSMZ 3 Suction Pressure | Current RSMZ 3 Suction Pressure | Read | ||
| AI | 187 | RSMZ 3 Suction Line Temp | Current RSMZ 3 Suction Line Temperature | Read | ||
| AI | 188 | RSMZ 3 Saturation Temp | Current RSMZ 3 Saturation Temperature | Read | ||
| AI | 189 | RSMZ 3 Superheat | Current RSMZ 3 Superheat temperature | Read | ||
| AI | 190 | RSMZ 3 EEV Position | Current RSMZ 3 EEV valve position | Read | ||
| AI | 191 | RSMZ 3 Suction Pressure 2 | Current RSMZ 3 Suction pressure 2 | Read | ||
| AI | 192 | RSMZ 3 Suction Line Temp 2 | Current RSMZ 3 Suction Line Temperature 2 | Read | ||
| AI | 193 | RSMZ 3 Saturation Temp 2 | Current RSMZ 3 Saturation Temperature 2 | Read | ||
| AI | 194 | RSMZ 3 Superheat 2 | Current RSMZ 3 Superheat Temperature 2 | Read | ||
| AI | 195 | RSMZ 3 EEV Position 2 | Current RSMZ 3 EEV valve position 2 | Read | ||
| AI | 196 | RSMZ 3 Warnings | Current RSMZ 3 Warnings | Read | ||
| AI | 197 | RSMZ 3 Discharge Line Temp | Current RSMZ 3 discharge line temperature | Read | ||
| AI | 198 | RSMZ 3 Faults | Current RSMZ 3 Faults | Read | ||
| AI | 199 | RSMZ 3 Lockouts | Current RSMZ 3 Lockouts | Read | ||
| AI | 200 | RSMZ 4 Condenser Fan | Current RSMZ 4 Condenser Fan Signal | Read | ||
| AI | 201 | RSMZ 4 VFD Comp Perc | Current RSMZ 4 VFD Compressor Percentage | Read | ||
| AI | 202 | RSMZ 4 Discharge Pressure | Current RSMZ 4 Discharge Pressure | Read | ||
| AI | 203 | RSMZ 4 Suction Pressure | Current RSMZ 4 Suction Pressure | Read | ||
| AI | 204 | RSMZ 4 Suction Line Temp | Current RSMZ 4 Suction Line Temperature | Read | ||
| AI | 205 | RSMZ 4 Saturation Temp | Current RSMZ 4 Saturation Temperature | Read | ||
| AI | 206 | RSMZ 4 Superheat | Current RSMZ 4 Superheat Temperature | Read | ||
| AI | 207 | RSMZ 4 EEV Position | Current RSMZ 4 EEV valve position | Read | ||
| AI | 208 | RSMZ 4 Warnings | Current RSMZ 4 Warnings | Read | ||
| AI | 209 | RSMZ 4 Comp VFD Alarms 1 | Current RSMZ 4 Comp VFD Alarms 1 | Read | ||
| AI | 210 | RSMZ 4 Comp VFD Alarms 2 | Current RSMZ 4 Comp VFD Alarms 2 | Read | ||
| AI | 211 | RSMZ 4 Comp VFD Drive Status | Current RSMZ 4 Comp VFD drive status | Read | ||
| AI | 212 | RSMZ 4 Comp VFD Compressor Current | Current reading in Amps that the RSMZ 4 compressor is using | Read | ||
| AI | 213 | RSMZ 4 Discharge Line Temp | Current RSMZ 4 discharge line temperature | Read | ||
| AI | 214 | RSMZ 4 Faults | Current RSMZ 4 Faults | Read | ||
| AI | 215 | RSMZ 4 Lockouts | Current RSMZ 4 Lockouts | Read | ||
| AI | 216 | RSMZ 5 Condenser Fan | Current RSMZ 5 Condenser Fan Signal | Read | ||
| AI | 217 | RSMZ 5 VFD Comp Perc | Current RSMZ 5 VFD Compressor Percentage | Read | ||
| AI | 218 | RSMZ 5 Discharge Pressure | Current RSMZ 5 discharge pressure | Read | ||
| AI | 219 | RSMZ 5 Suction Pressure | Current RSMZ 5 Suction pressure | Read | ||
| AI | 220 | RSMZ 5 Suction Line Temp | Current RSMZ 5 Suction Line Temperature | Read | ||
| AI | 221 | RSMZ 5 Saturation Temp | Current RSMZ 5 Saturation Temperature | Read | ||
| AI | 222 | RSMZ 5 Superheat | Current RSMZ5 Superheat temperature | Read | ||
| AI | 223 | RSMZ 5 EEV Position | Current RSMZ 5 EEV valve position | Read | ||
| AI | 224 | RSMZ 5 Warnings | Current RSMZ 5 Warnings | Read | ||
| AI | 225 | RSMZ 5 Comp VFD Alarms 1 | Current RSMZ 5 Comp VFD Alarms 1 | Read | ||
| AI | 226 | RSMZ 5 Comp Alarms 2 | Current RSMZ 5 Comp VFD Alarms 2 | Read | ||
| AI | 227 | RSMZ 5 Comp VFD Drive Status | Current RSMZ 5 Comp VFD drive status | Read | ||
| AI | 228 | RSMZ 5 Compressor Current | Current reading in Amps that the RSMZ 5 compressor is using | Read | ||
| AI | 229 | RSMZ 5 Discharge Line Temp | Current RSMZ 5 discharge line temperature | Read | ||
| AI | 230 | RSMZ 5 Faults | Current RSMZ 5 Faults | Read | ||
| AI | 231 | RSMZ 5 Lockouts | Current RSMZ 5Lockouts | Read | ||
| AI | 232 | RSMZ 6 Condenser Fan | Current RSMZ 6 condenser fan signal | Read | ||
| AI | 233 | RSMZ 6 Reheat Valve 1 | Current RSMZ 6 Reheat Valve 1 position | Read | ||
| AI | 234 | RSMZ 6 Discharge Pressure | Current RSMZ 6 discharge pressure | Read | ||
| AI | 235 | RSMZ 6 Suction Pressure | Current RSMZ 6 Suction Pressure | Read | ||
| AI | 236 | RSMZ 6 Suction Line Temp | Current RSMZ 6 Suction Line Temperature | Read | ||
| AI | 237 | RSMZ 6 Saturation Temp | Current RSMZ 6 Saturation Temperature | Read | ||
| AI | 238 | RSMZ 6 Superheat | Current RSMZ 6 Superheat Temperature | Read | ||
| AI | 239 | RSMZ 6 EEV Position | Current RSMZ 6 EEV valve position | Read | ||
| AI | 240 | RSMZ 6 Suction Pressure 2 | Current RSMZ 6 Suction pressure 2 | Read | ||
| AI | 241 | RSMZ 6 Suction Line Temp 2 | Current RSMZ 6 Suction Line Temperature 2 | Read | ||
| AI | 242 | RSMZ 6 Saturation Temp 2 | Current RSMZ 6 Saturation Temperature 2 | Read | ||
| AI | 243 | RSMZ 6 Superheat 2 | Current RSMZ 6 Superheat Temperature 2 | Read | ||
| AI | 244 | RSMZ 6 EEV Position 2 | Current RSMZ 6 EEV valve position 2 | Read | ||
| AI | 245 | RSMZ 6 Warnings | Current RSMZ 6 Warnings | Read | ||
| AI | 246 | RSMZ 6 Discharge Line Temp | Current RSMZ 6 discharge line temperature | Read | ||
| AI | 247 | RSMZ 6 Faults | Current RSMZ 6 Faults | Read | ||
| AI | 248 | RSMZ 6 Lockouts | Current RSMZ 6 Lockouts | Read | ||
| AI | 249 | Not used | Not used | Read | ||
| AI | 250 | Not used | Not used | Read | ||
| AI | 251 | Not used | Not used | Read | ||
| AI | 252 | Not used | Not used | Read | ||
| AI | 253 | SUB 1 Sub Cool 1 | Current Subcooling Module 1 Sub Cool 1 reading | Read | ||
| AI | 254 | SUB 1 Sub Cool 2 | Current Subcooling Module 1 Sub Cool 2 reading | Read | ||
| AI | 255 | SUB 1 Sub Cool 3 | Current Subcooling Module 1 Sub Cool 3 reading | Read | ||
| AI | 256 | SUB 1 Pressure 1 | Current Subcooling Module 1 liquid line pressure 1 reading | Read | ||
| AI | 257 | SUB 1 Pressure 2 | Current Subcooling Module 1 liquid line pressure 2 reading | Read | ||
| AI | 258 | SUB 1 Pressure 3 | Current Subcooling Module 1 liquid line pressure 3 reading | Read | ||
| AI | 259 | SUB 1 Saturation 1 | Subcooling Module 1 saturation temperature 1 reading | Read | ||
| AI | 260 | SUB 1 Saturation 2 | Subcooling Module 1 saturation temperature 2 reading | Read | ||
| AI | 261 | SUB 1 Saturation 3 | Subcooling Module 1 saturation temperature 3 reading | Read | ||
| AI | 262 | SUB 1 Line Temp 1 | Subcooling Module 1 liquid line temperature 1 reading | Read | ||
| AI | 263 | SUB 1 Line Temp 2 | Subcooling Module 1 liquid line temperature 2 reading | Read | ||
| AI | 264 | SUB 1 Line Temp 3 | Subcooling Module 1 liquid line temperature 3 reading | Read | ||
| AI | 265 | SUB 2 Sub Cool 1 | Current Subcooling Module 2 Sub Cool 1 reading | Read | ||
| AI | 266 | SUB 2 Sub Cool 2 | Current Subcooling Module 2 Sub Cool 2 reading | Read | ||
| AI | 267 | SUB 2 Sub Cool 3 | Current Subcooling Module 2 Sub Cool 3 reading | Read | ||
| AI | 268 | SUB 2 Pressure 1 | Current Subcooling Module 2 liquid line pressure 1 reading | Read | ||
| AI | 269 | SUB 2 Pressure 2 | Subcooling Module 2 liquid line pressure 2 reading | Read | ||
| AI | 270 | SUB 2 Pressure 3 | Subcooling Module 2 liquid line pressure 3 reading | Read | ||
| AI | 271 | SUB 2 Saturation 1 | Subcooling Module 2 saturation temperature 1 reading | Read | ||
| AI | 272 | SUB 2 Saturation 2 | Subcooling Module 2 saturation temperature 2 reading | Read | ||
| AI | 273 | SUB 2 Saturation 3 | Subcooling Module 2 saturation temperature 3 reading | Read | ||
| AI | 274 | SUB 2 Line Temp 1 | Subcooling Module 2 liquid line temperature 1 reading | Read | ||
| AI | 275 | SUB 2 Line Temp 2 | Subcooling Module 2 liquid line temperature 2 reading | Read | ||
| AI | 276 | SUB 2 Line Temp 3 | Subcooling Module 2 liquid line temperature 3 reading | Read | ||
| AI | 277 | Enter Water Pump | Status of Entering Water Temperature | Read | ||
| AI | 278 | Return Plenum Pressure Status | Return Plenum Pressure Sensor | Read | ||
| AI | 279 | Return Plenum Control Signal | Current Return Plenum Control Signal (Motorized Exhaust Damper) | Read | ||
| AI | 280 | Mixed Air Temp | Mixed air temperature sensor status | Read | ||
| AI | 281 | Actual Heat Rise | Difference between supply air temperature and mixed air temperature on units | Read | ||
| AI | 282 | Calculated Heat Rise | The heat rise limit determined by how open the Outside Damper is | Read | ||
| AI | 283 | Supply Air Relative Humidity | If an EBUS Supply Air Sensor is being used this shows | Read | ||
| AI | 284 | Supply Air Dew Point | If an EBUS Supply Air Sensor is being used this shows | Read | ||
| AI | 285 | Space Dew Point | Calculated Space Dew Point | Read | ||
| AI | 286 | Return Dew Point | Calculated Return Dew Point | Read | ||
| AVmin | 1 | Occupied Cooling Setpoint | If the control temperature rises one deadband above this setpoint, the control | °F | Write | |
| AVmin | 2 | Occupied Heating Setpoint | If the control temperature drops one deadband below this setpoint, the control | °F | Write | |
| AV | 3 | Hood On Cooling Setpoint | Cooling Mode Enable Setpoint used only in Hood On Mode or Space | °F | Write | |
| AV | 4 | Hood On Heating Setpoint | Heating Mode Enable Setpoint used only in Hood On Mode or Space | °F | Write | |
| AV | 5 | Unoccupied Cooling Offset | During the Unoccupied Mode of Operation, this Setpoint offsets the Occupied Cooling | °F | Write | |
| AV | 6 | Unoccupied Heating Offset | During the Unoccupied Mode of Operation, this Setpoint offsets the Occupied Heating | °F | Write | |
| AV | 7 | Mode Select Deadband | This value is added to and subtracted from the HVAC Mode Setpoints | °F | Write | |
| AV | 8 | Max Coil Setpoint Reset Limit | Highest that the Coil Temperature resets to during Space Humidity Reset | °F | Write | |
| AV | 9 | Min Coil Setpoint Reset Limit | Lowest the Coil Temperature resets to during Space Humidity Reset | °F | Write | |
| AVmin | 10 | Supply Air Cooling Setpoint | Supply Air Cooling Setpoint | °F | Write | |
| AV | 11 | Supply Air Heating Setpoint | Supply Air Heating Setpoint | °F | Write | |
| AV | 12 | Max SAT Cooling Setpoint Reset Limit | If Supply Air Reset is configured this is the High SAT Cooling | °F | Write | |
| AV | 13 | Max SAT Heating Setpoint Reset Limit | If Supply Air Reset is configured this is the High SAT Heating | °F | Write | |
| AV | 14 | Supply Air Cooling Staging Window | In Cooling Mode, if the Supply Air Temperature drops below the Active | °F | Write | |
| AV | 15 | Supply Air Heating Staging Window | In Heating Mode, if the Supply Air Temperature rises above the Active | °F | Write | |
| AV | 16 | Warm-Up Target Temperature | If Morning Warm-Up is configured, then upon entering occupied mode, the Warm-Up | °F | Write | |
| AV | 17 | Warm-Up Mode Supply Air Setpoint | During Morning Warm-Up, the Supply Air Temperature is controlled to this Setpoint | °F | Write | |
| AV | 18 | Cool-Down Mode Supply Air Setpoint | During Morning Cool-Down, the Supply Air Temperature is controlled to this Setpoint | °F | Write | |
| AV | 19 | Mechanical Cooling Outdoor Air Lockout | Mechanical Cooling is locked out when the Outdoor Air Temperature is below | °F | Write | |
| AV | 20 | Mechanical Heating Outdoor Air Lockout | Mechanical Heating is locked out when the Outdoor Air Temperature is above | °F | Write | |
| AV | 21 | Low Supply Temp Cutoff Alarm | Cooling is disabled if the Supply Air Temperature falls below this value | °F | Write | |
| AV | 22 | High Supply Temp Cutoff Alarm | Heating is disabled if the Supply Air Temperature rises above this value | °F | Write | |
| AV | 23 | Preheater Cooling Mode Setpoint | If the Preheater is enabled, and the unit is in the Cooling | °F | Write | |
| AV | 24 | Preheater Venting Mode Setpoint | If the Preheater is enabled, and the unit is in the Vent | °F | Write | |
| AV | 25 | Preheater Heating Mode Setpoint | If the Preheater is enabled, and the unit is in the Heating | °F | Write | |
| AV | 26 | Outdoor Air Dewpoint Setpoint | On an MUA unit, if the OA dewpoint rises above this setpoint | °F | Write | |
| AV | 27 | Economizer Enable Setpoint | The economizer is enabled if the outdoor drybulb, dewpoint, or wetbulb temperature | °F | Write | |
| AV | 28 | Heat Wheel Defrost Enable Setpoint | The unit goes into Heat Wheel Defrost if the Outdoor Air | °F | Write | |
| AV | 29 | PreHeat Enable Setpoint | If the Supply Fan is energized, this is the temperature at which | °F | Write | |
| AV | 30 | Sensor Slide Offset Max Effect | If the space sensor has the optional slide adjustment feature | °F | Write | |
| AV | 31 | Space Sensor Calibration Offset | If the Space Temperature Sensor is reading incorrectly, use this option | °F | Write | |
| AV | 32 | Supply Air Sensor Calibration Offset | If the Supply Air Temperature Sensor is reading incorrectly, use this option | °F | Write | |
| AV | 33 | Return Air Sensor Calibration Offset | If the Return Temperature Sensor is reading incorrectly, use this option | °F | Write | |
| AV | 34 | Outdoor Air Sensor Calibration Offset | If the Outdoor Temperature Sensor is reading incorrectly, use this option | °F | Write | |
| AV | 35 | Carbon Dioxide Sensor Calibration Offset | If the CO2 Sensor is reading incorrectly, use this option to -500 | Write | ||
| AV | 36 | Low Ambient Protection Setpoint | Temperature at which the Low Ambient Relay activates in the Occupied | °F | Write | |
| AV | 37 | SAT Cool Setpoint Reset Source Low Limit | If doing Supply Air Setpoint Reset, this is the Low Reset Source | °F | Write | |
| AV | 38 | SAT Cool Setpoint Reset Source High Limit | If doing Supply Air Setpoint Reset, this is the High Reset Source | °F | Write | |
| AV | 39 | SAT Heat Setpoint Reset Source Low Limit | If doing Supply Air Setpoint Reset, this is the Low Reset Source | °F | Write | |
| AV | 40 | SAT Heat Setpoint Reset Source High Limit | If doing Supply Air Setpoint Reset, this is the High Reset Source | °F | Write | |
| AV | 41 | Control Temperature High Alarm Offset | If the temperature of the controlling sensor rises above the Occupied Cooling | °F | Write | |
| AV | 42 | Control Temperature Low Alarm Offset | If the temperature of the controlling sensor falls below the Occupied Heating | °F | Write | |
| AV | 43 | Heat Pump Compressor Heat Lockout | Compressor Heat is locked out below this setpoint | °F | Write | |
| AV | 44 | Maximum Main Fan VFD in SZ VAV Heating Mode | In Single Zone VAV configuration, this is the max fan speed | Write | ||
| AV | 45 | Minimum Main Fan VFD in Cooling Mode | In Single Zone VAV configuration, this is the fan speed at which | Write | ||
| AV | 46 | Minimum Main Fan VFD in Heating Mode | In Single Zone VAV configuration, this is the fan speed at which | Write | ||
| AV | 47 | Minimum Main Fan VFD in Vent Mode | Speed at which the VFD operates in the Vent Mode in Single | Write | ||
| AV | 48 | Maximum Economizer in Heating Mode | Max position the Economizer Damper opens to in Supply Air Tempering during | Write | ||
| AV | 49 | Minimum Economizer Position | The minimum position of the Outdoor Air damper in the Occupied Mode | Write | ||
| AV | 50 | Maximum Economizer CO2 Reset Limit | The maximum value the Economizer Minimum Position can be reset up | Write | ||
| AV | 51 | Minimum Carbon Dioxide Setpoint | Threshold CO2 level at which the Economizer Min Damper Position Setpoint begins | Write | ||
| AV | 52 | Maximum Carbon Dioxide Setpoint | CO2 level at which the Economizer Min Damper Position resets | Write | ||
| AV | 53 | Indoor Humidity Setpoint Low Reset Limit | On indoor controlled (non-MUA) units, this is the Humidity setpoint at which | Write | ||
| AV | 54 | Indoor Humidity Setpoint High Reset Limit | On indoor controlled (non-MUA) units, this is the Humidity setpoint at which | Write | ||
| AV | 55 | Duct Static Pressure Setpoint | Current Static Pressure Setpoint | Write | ||
| AV | 56 | Duct Static Pressure Control Deadband | Value above and below the Duct Static Pressure Setpoint where no control | Write | ||
| AV | 57 | Building Pressure Control Setpoint | Building Pressure Setpoint or Exhaust Duct Static Pressure Setpoint | Write | ||
| AV | 58 | Building Pressure Control Deadband | Value above and below the Building Pressure Setpoint or the Exhaust Duct | Write | ||
| AV | 59 | Minimum Outdoor CFM Requirement | Minimum Outdoor Airflow CFM Setpoint | Write | ||
| AV | 60 | Outdoor CFM Control Deadband | Controls rate of change for damper signal | Write | ||
| AV | 61 | Single Zone VAV Fan Speed Integral | The Integral Constant for Single Zone VAV Fan Control | Write | ||
| AV | 62 | Relay Run-time Hours Warning Limit | If any configured relay’s run time exceeds this number of hours | Write | ||
| AV | 63 | Cooling Mode Head Pressure Setpoint | Head Pressure Setpoint in the Cooling Mode | Write | ||
| AV | 64 | Dehum Mode Head Pressure Setpoint | Head Pressure Setpoint in the Dehumidification Mode | Write | ||
| AV | 65 | Superheat Setpoint | Superheat Setpoint | °F | Write | |
| AV | 66 | Maximum Outdoor CFM Requirement | Maximum Outdoor Airflow CFM Setpoint in High CO2 | Write | ||
| AVmin | 67 | Schedule Force | Forces occupancy or follows the controller schedule | Write | 0=Auto (controller schedule), 1=Forced Occupied, 2=Forced Unoccupied | |
| AV | 68 | HVAC Mode Override | Forces the unit into a mode; Auto restores normal control | Write | 0=Auto, 1=Vent, 2=Cool, 3=Heat, 4=Vent Dehum, 5=Cool Dehum, 6=Heat Dehum | |
| AV | 69 | Fan VFD Override | Overrides main fan VFD speed; 65535 returns to auto | Write | ||
| AV | 70 | Outdoor Air Damper Override | Overrides outdoor air damper position; 65535 returns to auto | Write | ||
| AV | 71 | Supply Setpoint Override | Overrides the supply air temperature setpoint; 0 = no override | °F | Write | |
| AV | 72 | Space Temperature Value | If the controller is configured for this operation, the user can write | °F | Write | |
| AV | 73 | Space Humidity Value | If the controller is configured for this operation, the user can write | Write | ||
| AV | 74 | Indoor RH Calibration Offset | If the Space Humidity Sensor is reading incorrectly, use -1 this option | Write | ||
| AV | 75 | Relief Fan VFD | Overrides relief fan VFD speed; 65535 returns to auto | Write | ||
| AV | 76 | Relief Pressure Value | If the controller is configured for this operation, the user can write | Write | ||
| AV | 77 | Carbon Dioxide Value | If the controller is configured for this operation, the user can write | Write | ||
| AV | 78 | Outdoor Air Temperature Value | If the controller is configured for this operation, the user can write | °F | Write | |
| AV | 79 | Outdoor Air Humidity Value | If the controller is configured for this operation, the user can write | Write | ||
| AV | 80 | High Level Enthalpy (Reserved) | Reserved | Write | ||
| AV | 81 | Low Level Enthalpy (Reserved) | Reserved | Write | ||
| AV | 82 | Max Plenum Pressure Setpoint Reset Limit | Reserved | Write | ||
| AV | 83 | Min Plenum Pressure Setpoint Reset Limit | Reserved | Write | ||
| AV | 84 | Enthalpy Enable Setpoint | If configured for Comparative Enthalpy Economizer Control, the OA Enthalpy must | BTU/lb | Write | |
| AV | 85 | EnthalpyEnable Deadband | The OA Enthalpy must be below the Enthalpy Enable Setpoint | BTU/lb | Write | |
| AV | 86 | Maximum Static Setpoint Reset Limit | As the most open VAV damper rises above 80%, the static setpoint | in. W.C. | Write | |
| AV | 87 | Minimum Static Setpoint Reset Limit | As the most open VAV damper drops below 80%, the static setpoint | in. W.C. | Write | |
| AV | 88 | Static Setpoint Reset Interval | The Reset Interval is how often the setpoint reset calculation 10 min | Write | ||
| AV | 89 | Cool-Down Target Temperature | If Morning Cool-Down is configured then upon entering occupied mode, the Cool-Down | °F | Write | |
| AV | 90 | Warm-Up Override | Commands Morning Warm-Up Mode | Write | 1=Command Warm-Up Mode | |
| AV | 91 | Cool Down Override | Commands Morning Cool-Down Mode | Write | 1=Command Cool-Down Mode | |
| AV | 92 | Return Air High Limit Protection | Return air high limit; unit reverts above it (voting/CV units only) | Write | ||
| AV | 93 | Return Air Low Limit Protection | Return air low limit; unit reverts below it (voting/CV units only) | Write | ||
| AV | 94 | Sump Drain Override | Turns the sump drain relay on or back to auto | Write | 0=Auto, 1=On | |
| AV | 95 | Return Plenum Pressure Setpoint | Current Return Plenum Pressure Setpoint | in. W.C. | Write | |
| AV | 96 | Return Plenum Pressure Deadband | Value above and below the Return Plenum Pressure Setpoint where no control | in. W.C. | Write | |
| AV | 97 | Dehum Lockout Setpoint | If Outdoor Air temperature is below this setpoint, Dehumidification Mode is locked | °F | Write | |
| AV | 98 | Emergency Compressor Lockout | Lets the BMS lock out the compressors | Write | ||
| AV | 99 | Supply Air Dew Point Setpoint | When the VCCX2 is configured for DX-DOAS control it modulates the compressors | Write | ||
| BI | 1 | Cooling Enabled Status | Mechanical Cooling is enabled based on the Cooling Lockout | Read | ||
| BI | 2 | Heating Enabled Status | That Mechanical Heating is enabled based on the Heating Lockout | Read | ||
| BI | 3 | Economizer Enabled Status | The Economizer is enabled based on the Economizer Enable Setpoint | Read | ||
| BI | 4 | Aux Heat Enabled Status | Heat Pump Auxiliary Heat enabled | Read | ||
| BI | 5 | Emergency Heat Enabled Status | Shows the Emergency Heat is enabled based on the Compressor Heating Lockout | Read | ||
| BI | 6 | Fan Proof of Airflow Status | Proof of Airflow Binary Input Status | Read | ||
| BI | 7 | Exhaust Hood On/Off Status | Exhaust Hood On/Off Binary Input Status | Read | ||
| BI | 8 | Remote Forced Occupied Status | Remote Forced Occupied Mode Binary Input Status | Read | ||
| BI | 9 | Remote Forced Cooling Status | Remote Forced Cooling Mode Binary Input Status | Read | ||
| BI | 10 | Remote Forced Heating Status | Remote Forced Heating Mode Binary Input Status | Read | ||
| BI | 11 | Remote Force Dehum Status | Remote Force Dehumidification Mode Binary Input Status | Read | ||
| BI | 12 | Bad Supply Air Sensor | Alarm that indicates a failure of the Supply Air Sensor | Read | ||
| BI | 13 | Bad Return Air Sensor | Alarm that indicates a failure of the Return Air Sensor | Read | ||
| BI | 14 | Bad Outdoor Air Sensor | Failure of the Outdoor Air Temperature Sensor | Read | ||
| BI | 15 | Bad Space Temp Sensor | Failure of the Space Temperature Sensor | Read | ||
| BI | 16 | Bad Carbon Dioxide Sensor | Failure of the CO2 Sensor | Read | ||
| BI | 17 | Bad Building Pressure Sensor | Alarm indicating missing or failed Building Pressure Sensor | Read | ||
| BI | 18 | Bad Outdoor Airflow Sensor | An Outdoor Airflow Sensor is configured, but not detected | Read | ||
| BI | 19 | Bad Exhaust Airflow Sensor | An Exhaust Airflow Sensor is configured, but not detected | Read | ||
| BI | 20 | Bad Supply Airflow Sensor | A Supply Airflow Sensor is configured, but not detected | Read | ||
| BI | 21 | Bad Return Airflow Sensor | A Return Airflow Sensor is configured, but not detected | Read | ||
| BI | 22 | Mechanical Cooling Alarm | Compressor Relays are enabled but the Supply Air Temperature has not fallen | Read | ||
| BI | 23 | Mechanical Heating Alarm | Heating Mode has been initiated but the Supply Air Temperature has not | Read | ||
| BI | 24 | Fan Proving Alarm | Alarm that indicates an Airflow failure from the Main Fan | Read | ||
| BI | 25 | Dirty Filter Alarm | Alarm that indicates the filters are dirty | Read | ||
| BI | 26 | Emergency Shutdown Alarm | Alarm that indicates that Emergency Shutdown has been activated | Read | ||
| BI | 27 | Relay Runtime Warning | When any of the configured relays exceeds a configured number of hours | Read | ||
| BI | 28 | Economizer Missing Alarm | Title 24 operation indicates missing economizer feedback | Read | ||
| BI | 29 | Economizer Title 24 Failure A | Title 24 Air Temperature Sensor Failure | Read | ||
| BI | 30 | Economizer Title 24 Failure B | Title 24 Not Economizing when it should | Read | ||
| BI | 31 | Economizer Title 24 Failure C | Title 24 Economizing when it should not | Read | ||
| BI | 32 | Economizer Title 24 Failure D | Title 24 Damper Not Modulating | Read | ||
| BI | 33 | Economizer Title 24 Failure E | Title 24 Excess Outdoor Air | Read | ||
| BI | 34 | High Supply Temp Cutoff | The Supply Air has risen above the Hi SAT Cutoff Setpoint | Read | ||
| BI | 35 | Low Supply Temp Cutoff | The Supply Air has fallen below the Low SAT Cutoff Setpoint | Read | ||
| BI | 36 | High Control Mode Alarm | Occurs when the Controlling Sensor Temperature rises above the Cooling Mode Enable | Read | ||
| BI | 37 | Low Control Mode Alarm | Occurs when the Controlling Sensor Temperature falls below the Heating Mode Enable | Read | ||
| BI | 38 | Missing Refrigerant Module #1 | Refrigerant Module #1 is bad or missing | Read | ||
| BI | 39 | Missing Refrigerant Module #2 | Refrigerant Module #2 is bad or missing | Read | ||
| BI | 40 | Missing Refrigerant Module #3 | Refrigerant Module #3 is bad or missing | Read | ||
| BI | 41 | Missing Refrigerant Module #4 | Refrigerant Module #4 is bad or missing | Read | ||
| BI | 42 | Missing Preheater Board | Preheater Module is bad or missing | Read | ||
| BI | 43 | Missing Reheat Board | The MHGR board is configured but not detected | Read | ||
| BI | 44 | Missing Mod Gas Board | The MODGAS board is configured but not detected | Read | ||
| BI | 45 | Missing EM1 Board | EM1 Expansion Board is bad or missing | Read | ||
| BI | 46 | Missing 12 Relay Expansion Board | The 12 Relay Expansion Board is configured but not detected | Read | ||
| BI | 47 | On Board Relay 1 Main Fan | Current Status of Main Fan Relay #1 on Main Board | Read | ||
| BI | 48 | On Board Relay 2 | Current Status of Configurable Relay #2 on Main Board | Read | ||
| BI | 49 | On Board Relay 3 | Current Status of Configurable Relay #3 on Main Board | Read | ||
| BI | 50 | On Board Relay 4 | Current Status of Configurable Relay #4 on Main Board | Read | ||
| BI | 51 | On Board Relay 5 | Current Status of Configurable Relay #5 on Main Board | Read | ||
| BI | 52 | On Board Relay 6 | Current Status of Configurable Relay #6 on Main Board | Read | ||
| BI | 53 | On Board Relay 7 | Current Status of Configurable Relay #7 on Main Board | Read | ||
| BI | 54 | On Board Relay 8 | Current Status of Configurable Relay #8 on Main Board | Read | ||
| BI | 55 | Expansion Board EM1 Relay 1 | Current Status of Configurable Relay #1 on EM1 Board | Read | ||
| BI | 56 | Expansion Board EM1 Relay 2 | Current Status of Configurable Relay #2 on EM1 Board | Read | ||
| BI | 57 | Expansion Board EM1 Relay 3 | Current Status of Configurable Relay #3 on EM1 Board | Read | ||
| BI | 58 | Expansion Board EM1 Relay 4 | Current Status of Configurable Relay #4 on EM1 Board | Read | ||
| BI | 59 | Expansion Board EM1 Relay 5 | Current Status of Configurable Relay #5 on EM1 Board | Read | ||
| BI | 60 | 12 Relay Expansion Board Relay 1 | Current Status of Configurable Relay #1 on 12 Relay Board | Read | ||
| BI | 61 | 12 Relay Expansion Board Relay 2 | Current Status of Configurable Relay #2 on 12 Relay Board | Read | ||
| BI | 62 | 12 Relay Expansion Board Relay 3 | Current Status of Configurable Relay #3 on 12 Relay Board | Read | ||
| BI | 63 | 12 Relay Expansion Board Relay 4 | Current Status of Configurable Relay #4 on 12 Relay Board | Read | ||
| BI | 64 | 12 Relay Expansion Board Relay 5 | Current Status of Configurable Relay #5 on 12 Relay Board | Read | ||
| BI | 65 | 12 Relay Expansion Board Relay 6 | Current Status of Configurable Relay #6 on 12 Relay Board | Read | ||
| BI | 66 | 12 Relay Expansion Board Relay 7 | Current Status of Configurable Relay #7 on 12 Relay Board | Read | ||
| BI | 67 | 12 Relay Expansion Board Relay 8 | Current Status of Configurable Relay #8 on 12 Relay Board | Read | ||
| BI | 68 | 12 Relay Expansion Board Relay 9 | Current Status of Configurable Relay #9 on 12 Relay Board | Read | ||
| BI | 69 | 12 Relay Expansion Board Relay 10 | Current Status of Configurable Relay #10 on 12 Relay Board | Read | ||
| BI | 70 | 12 Relay Expansion Board Relay 11 | Current Status of Configurable Relay #11 on 12 Relay Board | Read | ||
| BI | 71 | 12 Relay Expansion Board Relay 12 | Current Status of Configurable Relay #12 on 12 Relay Board | Read | ||
| BI | 72 | Preheater Enable Status | Status of Preheater Enable Input | Read | ||
| BI | 73 | Preheater Emergency Shutdown | Status of Preheater Emergency Shutdown Input | Read | ||
| BI | 74 | Preheater Spare Binary Input #3 | Status of Preheater Binary Input #3 | Read | ||
| BI | 75 | MODGAS Enable Status | Status of MODGAS Controller | Read | ||
| BI | 76 | MHGR Enable Status | Status of MHGRV Controller | Read | ||
| BI | 77 | A1 Compressor Enable | Current Status of Enable Signal to Compressor A1 | Read | ||
| BI | 78 | A2 Compressor Enable | Current Status of Enable Signal to Compressor A2 | Read | ||
| BI | 79 | A1 Compressor Alarms | An RSM alarm is present on the A1 circuit | Read | ||
| BI | 80 | A2 Compressor Alarms | An RSM alarm is present on the A2 circuit | Read | ||
| BI | 81 | A1-2 Defrost Switch | Outside Coil A1/A2 Temp Switch for Defrost Mode | Read | ||
| BI | 82 | A1-2 Water Proof of Flow | A1/A2 Water Proof of Flow Switch | Read | ||
| BI | 83 | A1-4 Emergency Shutdown (RSMD) | Emergency Shutdown Input on Module A | Read | ||
| BI | 84 | Refrigerant Module 1 Relay 1 | Current Status of Compressor A1 Enable Relay | Read | ||
| BI | 85 | Refrigerant Module 1 Relay 2 | Current Status of Compressor A2 Enable Relay | Read | ||
| BI | 86 | Refrigerant Module 1 Relay 3 | Current Status of Condenser 1 Enable Relay | Read | ||
| BI | 87 | Refrigerant Module 1 Relay 4 | Current Status of Relay #4 | Read | ||
| BI | 88 | Refrigerant Module 1 Relay 5 | Current Status of Relay #5 | Read | ||
| BI | 89 | B1 Compressor Enable | Current Status of Enable Signal to Compressor B1 | Read | ||
| BI | 90 | B2 Compressor Enable | Current Status of Enable Signal to Compressor B2 | Read | ||
| BI | 91 | B1 Compressor Alarms | An RSM alarm is present on the B1 circuit | Read | ||
| BI | 92 | B2 Compressor Alarms | An RSM alarm is present on the B2 circuit | Read | ||
| BI | 93 | B1-2 Defrost Switch | Outside Coil B1/B2 Temp Switch for Defrost Mode | Read | ||
| BI | 94 | B1-2 Water Proof of Flow | B1/B2 Switch for Water Proof of Flow | Read | ||
| BI | 95 | B1-4 Emergency Shutdown (RSMD) | Emergency Shutdown Input on Module B | Read | ||
| BI | 96 | Refrigerant Module 2 Relay 1 | Current Status of Compressor 1 Enable Relay | Read | ||
| BI | 97 | Refrigerant Module 2 Relay 2 | Current Status of Compressor 2 Enable Relay | Read | ||
| BI | 98 | Refrigerant Module 2 Relay 3 | Current Status of Condenser 1 Enable Relay | Read | ||
| BI | 99 | Refrigerant Module 2 Relay 4 | Current Status of Relay #4 | Read | ||
| BI | 100 | Refrigerant Module 2 Relay 5 | Current Status of Relay #5 | Read | ||
| BI | 101 | C1 Compressor Enable | Current Status of Enable Signal to Compressor C1 | Read | ||
| BI | 102 | C2 Compressor Enable | Current Status of Enable Signal to Compressor C2 | Read | ||
| BI | 103 | C1 Compressor Alarms | An RSM alarm is present on the C1 circuit | Read | ||
| BI | 104 | C2 Compressor Alarms | An RSM alarm is present on the C2 circuit | Read | ||
| BI | 105 | C1-2 Defrost Switch | Outside Coil C1/C2Temp Switch for Defrost Mode | Read | ||
| BI | 106 | C1-2 Water Proof of Flow | C1/C2 Switch for Water Proof of Flow | Read | ||
| BI | 107 | C1-4 Emergency Shutdown (RSMD) | Emergency Shutdown Input on Module C | Read | ||
| BI | 108 | Refrigerant Module 3 Relay 1 | Current Status of Compressor 1 Enable Relay | Read | ||
| BI | 109 | Refrigerant Module 3 Relay 2 | Current Status of Compressor 2 Enable Relay | Read | ||
| BI | 110 | Refrigerant Module 3 Relay 3 | Current Status Condenser 1 Enable Relay | Read | ||
| BI | 111 | Refrigerant Module 3 Relay 4 | Current Status of Relay #4 | Read | ||
| BI | 112 | Refrigerant Module 3 Relay 5 | Current Status of Relay #5 | Read | ||
| BI | 113 | D1 Compressor Enable | Current Status of Enable Signal to Compressor D1 | Read | ||
| BI | 114 | D2 Compressor Enable | Current Status of Enable Signal to Compressor D2 | Read | ||
| BI | 115 | D1 Compressor Alarms | An RSM alarm is present on the D1 circuit | Read | ||
| BI | 116 | D2 Compressor Alarms | An RSM alarm is present on the D2 circuit | Read | ||
| BI | 117 | D1-2 Defrost Switch | Outside Coil D1/D2 Temp Switch for Defrost Mode | Read | ||
| BI | 118 | D1-2 Water Proof of Flow | D1/D2 Switch for Water Proof of Flow | Read | ||
| BI | 119 | D1-4 Emergency Shutdown (RSMD) | Emergency Shutdown Input on Module D | Read | ||
| BI | 120 | Refrigerant Module 4 Relay 1 | Current Status of Compressor 1 Enable Relay | Read | ||
| BI | 121 | Refrigerant Module 4 Relay 2 | Current Status of Compressor 2 Enable Relay | Read | ||
| BI | 122 | Refrigerant Module 4 Relay 3 | Current Status of Condenser 1 Enable Relay | Read | ||
| BI | 123 | Refrigerant Module 4 Relay 4 | Current Status of Relay #4 | Read | ||
| BI | 124 | Refrigerant Module 4 Relay 5 | Current Status of Relay #5 | Read | ||
| BI | 125 | Preheater Alarm | Preheater Alarm Indicator | Read | ||
| BI | 126 | Return Fan Proving Alarm | Exhaust Fan / Return Fan Proof of Flow Alarm | Read | ||
| BI | 127 | Compressor Running A | Current Run Status of Compressor A | Read | ||
| BI | 128 | Compressor Running B | Current Run Status of Compressor B | Read | ||
| BI | 129 | Compressor Running C | Current Run Status of Compressor C | Read | ||
| BI | 130 | Compressor Running C2 | Current Run Status of Compressor C2 | Read | ||
| BI | 131 | Compressor Running D | Current Run Status of Compressor D | Read | ||
| BI | 132 | Compressor Running E | Current Run Status of Compressor E | Read | ||
| BI | 133 | Compressor Running E2 | Current Run Status of Compressor E2 | Read | ||
| BI | 134 | Compressor Running F | Current Run Status of Compressor F | Read | ||
| BI | 135 | Compressor Running F2 | Current Run Status of Compressor F2 | Read | ||
| BI | 136 | Return Fan Proving Status | Proof of Return Fan Airflow Binary Input Status | Read | ||
| BI | 137 | IAQ Mode Active | IAQ Mode is active | Read | ||
| BI | 138 | Heat Wheel Defrost Active | Heat Wheel Defrost is active | Read | ||
| BI | 139 | Direct Fire Status | Signal on EM1 binary input 2 from Direct Fire Module that indicates | Read | ||
| BI | 140 | Direct Fire Alarm Status | Signal on EM1 binary input 3 that indicates there is an active | Read | ||
| BI | 141 | Temp Rise Warning | The heat rise when direct fire heat is active has exceeded | Read | ||
| BI | 142 | Temp Rise Alarm | The heat rise when direct fire heat is active has exceeded | Read | ||
| BI | 143 | Temp Rise Lockout | Three High Temp Rise alarms occurred within a 1-hour span | Read | ||
| BI | 144 | High CO2 Rise Warning | High return CO2 was detected when running direct fire heat | Read | ||
| BI | 145 | High CO2 Rise Alarm | High return CO2 was detected and direct fire heat has been temporarily | Read | ||
| BI | 146 | High CO2 Rise Lockout | Three CO2 warning alarms occurred within a 1-hour span and direct fire | Read | ||
| BI | 147 | Ignition Lockout | An active alarm on the Direct Fire Module | Read | ||
| BI | 148 | Direct Fire Status Lockout | Direct Fire Status Signal is not active within 10 minutes | Read | ||
| BI | 149 | Direct Fire Setpoint Override | The max calculated heat rise is limiting the Supply Air Setpoint | Read |
No points match these filters.
Integration notes
- AI objects are read-only and AV objects are read/write; of the sensor values, only AV 72, 73 and 76-79 may be written by the BAS.
- Points for refrigerant modules (RSMV/RSMD/RSMZ), preheater, MODGAS, MHGRV and expansion boards only report data when that hardware is installed.
- AI 159-248 RSMZ warning, fault, lockout and VFD status points are bit strings; the bit meanings are in the guide's Bitfields tables.
- Units are not printed for analog inputs; analog value units shown here come from the guide's min/max limits.
- MAC address, device ID and baud rate are set from the controller's LCD BACnet screens.
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. Easy BACnet scans a network for BACnet IP devices from an Android phone, reads every object on the VCCX2 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 VCCX2 Controller
How many BACnet points does the AAON VCCX2 Controller have?
This list has 534 BACnet objects: 286 analog inputs, 99 analog values, 149 binary inputs. The exact set on a given unit depends on its firmware, installed options and configuration.
Which AAON VCCX2 Controller BACnet points are writable?
99 of the 534 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 VCCX2 Controller BACnet documentation?
The source is VCCX2 Controller Technical Guide (Appendix C: BACnet Guide) (G115820), revision Rev. AA, January 7, 2025, published free by AAON at https://www.aaon.com/hubfs/G039840-VCCX2-T.pdf.
What are the minimum BACnet points to integrate the AAON VCCX2 Controller?
Start with AV 67 Schedule Force (Occupied/unoccupied command from the BAS); AV 1 Occupied Cooling Setpoint (Cooling starts one deadband above this, °F); AV 2 Occupied Heating Setpoint (Heating starts one deadband below this, °F); AV 10 Supply Air Cooling Setpoint (Discharge air temp target in cooling, °F); AI 3 Control Status (Current occupancy status); AI 4 HVAC Mode (Off, vent, cool, heat, dehum, purge or defrost mode); AI 5 Control Temperature (Reading from the configured control sensor); AI 9 Supply Air Temperature (Discharge air temp leaving the unit); AI 144 Alarm Status (Summary alarm).
How do I enable BMS control of the AAON VCCX2 Controller?
Occupancy comes from AV 67 Schedule Force (0 = follow the controller schedule, 1 = forced occupied, 2 = forced unoccupied), the internal week schedule, a GPC-XP broadcast schedule, or the BI4 remote forced occupied contact. AV 68, AV 69, AV 70 and AV 71 override HVAC mode, fan VFD, OA damper and supply setpoint; writing Auto (0 or 65535 as listed) hands control back.
Can the BMS supply sensor values to the AAON VCCX2 Controller?
If the controller is configured for it, the BAS can write AV 72 Space Temperature, AV 73 Space Humidity, AV 76 Relief Pressure, AV 77 CO2, AV 78 Outdoor Air Temperature and AV 79 Outdoor Air Humidity; these are the only sensor values the BAS may write. The guide gives no refresh timeout for them. A relief pressure value received over BACnet that is out of range raises an alarm.
How do I check these points on the real VCCX2 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
- 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 - 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
Source: VCCX2 Controller Technical Guide (Appendix C: BACnet Guide) · G115820 · rev. Rev. AA, January 7, 2025. Object names, instances and units are reproduced as published; descriptions are our own.