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Self-contained unit controller · BACnet points list
Trane Symbio 500 Commercial Self-Contained (SWUD) BACnet points list
Updated 28 October 2026
Short answer
The Symbio 500 on commercial self-contained (SWUD) units exposes about 355 objects, including hardware AI/AO/BI/BO points. Writable setpoints are AVs and BVs with relinquish defaults, and the space temperature BAS value has a heartbeat. Points depend on the unit's control type (space or VAV), compressor and supply fan count, economizer and heat options.
This page lists 356 BACnet objects for the Trane Symbio 500 Commercial Self-Contained (SWUD) — 89 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Trane’s own free documentation, linked below.
- Manufacturer
- Trane
- Model
- Symbio 500 Commercial Self-Contained (SWUD)
- Equipment
- Self-contained unit controller
- Equipment type
- Rooftop units, AHUs & DOAS
- BACnet objects
- 356 (89 writable)
- Transport
- BACnet MS/TP, BACnet IP
- Firmware
- V1.X
- Also known as
- Symbio 500, SWUD, Commercial Self-Contained, CSC, BAS-PTS038
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BMS integration notes: Trane Symbio 500 Commercial Self-Contained (SWUD)
Integration in brief
In the Symbio UI (USB, http://198.80.18.1), use BAS Control Selection to set each sensor and setpoint to BAS or Local. Then schedule with MV 1 Occupancy Request, write the setpoint BAS AVs and use BV 329 Front Panel Auto Stop to run or stop the unit. MV 60/61/62 show whether each value is coming from the BAS, local or default.
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 |
|---|---|---|---|
| MV 1 | Occupancy Request | Occupancy command from the BMS schedule | Write |
| BV 329 | Front Panel Auto Stop | Auto/stop of the unit (relinquish default is Stop) | Write |
| MV 3 | Heat Cool Mode Request | Mode command from the BMS | Write |
| AV 7 | Space Temperature Setpoint BAS | Space setpoint from the BMS | Write |
| AV 24 | Discharge Air Cooling Setpoint BAS | Supply air cooling setpoint from the BMS | Write |
| AV 91 | Duct Static Pressure Setpoint BAS | Duct static setpoint from the BMS | Write |
| MV 2 | Occupancy Status | Confirms the occupancy in effect | Read |
| BV 360 | Supply Fan Calculated Status | Any supply fan running | Read |
| AI 11 | Discharge Air Temperature | Supply air temperature | Read |
| MV 189 | CSC Unit Status | Overall unit status: normal, off, warning, alarm, stops | Read |
Enable & remote start
BAS vs Local is chosen per sensor and setpoint with the BAS Control Selection tool in the Symbio UI. BV 329 Front Panel Auto Stop (Auto/Stop, relinquish default Stop) and BI 10 External Auto Stop Input Status cover unit start/stop. The documents don't spell out how those two interact.
Heartbeat & communication loss
Among the BAS inputs only AV 73 Space Temperature BAS lists a heartbeat (900 s) in the points list (AV 901 and AV 903-906 list 1); the documents don't describe what happens on expiry. BV 11 'Diagnostic: Space Temperature Source Failure' is the related alarm flag.
Sensors & values from the BMS
Set the sensor to BAS in BAS Control Selection, then write AV 73 Space Temperature BAS, AV 75 Outdoor Air Temperature BAS, AV 79 Space Humidity BAS or AV 81 Outdoor Air Humidity BAS. MV 62 Space Temperature Source Status shows BAS/Local/Default, and the 'Source Failure' BVs (BV 11-14, BV 42) flag a lost source.
Network setup
- The three rotary switches set the MS/TP MAC and, by default, the Device ID. Use 001-120 on MS/TP (000 is reserved for Tracer SC+); IP or Zigbee units allow 001-999.
- Set the rotary address before power-up; a change takes effect after a power cycle.
- For a Device ID above 127, enable 'Use Software Device ID' in Symbio UI or Tracer TU (TU needs a power cycle); this disables the rotary method.
- Saving protocol, IP or system-unit settings in Symbio UI restarts the controller, so the unit stops briefly.
- System units (IP/SI) set in Symbio UI change the units sent over BACnet.
Watch out for
- Only the points for the unit's options are present (control type, compressor and fan count, economizer, heat type).
- AO/BO hardware outputs are read-only status in this list; command the unit through the BAS value objects.
- AV 1 Occupied Cooling Setpoint and AV 2 Occupied Heating Setpoint are listed read-only; write AV 7 Space Temperature Setpoint BAS instead.
- Tracer SC+ sets the software Device ID automatically during discovery; third-party systems must set it themselves.
Trane Symbio 500 Commercial Self-Contained (SWUD) 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 | Space Temperature Local | Space temperature value from a sensor wired to the controller | °F | Read | |
| AI | 2 | Space Temperature Setpoint Local | Space Temperature Setpoint value from a sensor wired to the controller | °F | Read | |
| AImin | 11 | Discharge Air Temperature | Discharge air temperature value from a sensor wired to the controller | °F | Read | |
| AI | 12 | Duct Static Pressure Local | Duct static pressure value from a sensor wired to the controller | in(H2O) | Read | |
| AI | 21 | Outdoor Air Temperature Local | Outdoor Air Temperature value from a sensor wired to the controller | °F | Read | |
| AI | 22 | Outdoor Air Relative Humidity Local | Outdoor Air Humidity value from a sensor wired to the controller | % | Read | |
| AI | 32 | Return Air Temperature Local | Return temperature value from a sensor wired to the controller | °F | Read | |
| AI | 33 | Return Air Humidity Local | Return Air Humidity value from a sensor wired to the controller | % | Read | |
| AI | 45 | Entering Air Temperature | Entering air temperature value from a sensor wired to the controller | °F | Read | |
| AI | 46 | Condenser Water Entering Temperature | Condenser Water Entering Temperature from a connected wired sensor | °F | Read | |
| AI | 47 | Condenser Water Leaving Temperature | Condenser Water Leaving Temperature value from a sensor wired to the controller | °F | Read | |
| AI | 62 | Primary Filter Differential Pressure Local | Pressure drop across the filter bank | in(H2O) | Read | |
| AI | 250 | Discharge Gauge Pressure Circuit 1 | Compressor 1 discharge pressure value from a sensor wired to the controller | psi | Read | |
| AI | 251 | Suction Gauge Pressure Circuit 1 | Compressor 1 suction pressure | psi | Read | |
| AI | 252 | Suction Temperature Circuit 1 | Compressor 1 suction temperature value from a sensor wired to the controller | °F | Read | |
| AI | 255 | Discharge Gauge Pressure Circuit 2 | Compressor 2 discharge pressure | psi | Read | |
| AI | 256 | Suction Gauge Pressure Circuit 2 | Compressor 2 suction pressure value from a sensor wired to the controller | psi | Read | |
| AI | 257 | Suction Temperature Circuit 2 | Compressor 2 suction temperature | °F | Read | |
| AI | 280 | Refrigerant LFL Concentration Sensor Compressor | Concentration level of refrigerant in the compressor section | % LFL | Read | |
| AI | 281 | Refrigerant LFL Concentration Sensor Evaporator | Concentration level of refrigerant in the evaporator section | % LFL | Read | |
| AO | 11 | Heating Output Command | Heating Output Command (%) | % | Read | |
| AO | 20 | Outdoor Air Damper Command | Unit commanded outside air damper position | % | Read | |
| AO | 81 | Condenser Water Regulating Valve | Command used (%) to control the condenser regulating valve command | % | Read | |
| AO | 86 | Heating Output 1 Command | Demand requested for the electric modulating heat | % | Read | |
| AO | 96 | Supply Fan 1 Speed Command | Speed command (%) used to control Supply Fan 1 | % | Read | |
| AO | 97 | Supply Fan 2 Speed Command | Speed command (%) used to control Supply Fan 2 | % | Read | |
| AO | 98 | Supply Fan 3 Speed Command | Speed command (%) used to control Supply Fan 3 | % | Read | |
| AO | 99 | Supply Fan 4 Speed Command | Speed command (%) used to control Supply Fan 4 | % | Read | |
| AO | 100 | Supply Fan 5 Speed Command | Speed command (%) used to control Supply Fan 5 | % | Read | |
| AO | 101 | Supply Fan 6 Speed Command | Speed command (%) used to control Supply Fan 6 | % | Read | |
| AO | 102 | Supply Fan 7 Speed Command | Speed command (%) used to control Supply Fan 7 | % | Read | |
| AO | 105 | Water Side Economizer Valve | Command (%) used to control the waterside economizer control valve | % | Read | |
| AV | 1 | Occupied Cooling Setpoint | Define the occupied cooling setpoint | °F | Read | |
| AV | 2 | Occupied Heating Setpoint | Define the occupied heating setpoint | °F | Read | |
| AV | 3 | Occupied Offset | Difference between the occupied cool and heat setpoints | Δ °F | Write | |
| AV | 4 | Occupied Standby Offset | Difference between the occupied standby cool and heat setpoints | Δ °F | Write | |
| AV | 5 | Unoccupied Cooling Setpoint | Define the cooling temperature setpoint used for control in unoccupied mode | °F | Write | |
| AV | 6 | Unoccupied Heating Setpoint | Define the heating temperature setpoint used for control in unoccupied mode | °F | Write | |
| AVmin | 7 | Space Temperature Setpoint BAS | BAS-supplied space temperature setpoint value | °F | Write | |
| AV | 8 | Space Temperature Setpoint Active | Active space temperature setpoint being used by the controller | °F | Read | |
| AV | 11 | Outdoor Air Damper Position | OA Damper Actuator feedback signal | % | Read | |
| AV | 18 | Discharge Air Reset Setpoint Max BAS | Value used to limit the Discharge Air Setpoint maximum value | °F | Write | |
| AV | 21 | Discharge Air Temperature Setpoint Active | Discharge air temperature setpoint actively being used for control | °F | Read | |
| AV | 22 | Discharge Air Temperature Setpoint Pgain | Proportional gain for Discharge fan speed on duct static pressure control | Write | ||
| AVmin | 24 | Discharge Air Cooling Setpoint BAS | Request the discharge air temperature cooling setpoint value | °F | Write | |
| AV | 25 | Discharge Air Heating Setpoint BAS | Request the discharge air temperature heating setpoint value | °F | Write | |
| AV | 28 | Discharge Air Temperature Setpoint Local | Calculated setpoint to control the Discharge Air Tempeature | °F | Read | |
| AV | 35 | Return Air Enthalpy Active | The return air enthalpy value being utilized by the unit | BTU/lb | Read | |
| AV | 36 | Economizer Minimum Position Setpoint BAS | Request the economizer minimum position setpoint | % | Write | |
| AV | 38 | Economizer Pgain | Proportional gain for Economizer PI controller | Write | ||
| AV | 39 | Mixed Air Low Limit Setpoint BAS | Mixed air temperature setpoint Low Limit | °F | Write | |
| AV | 41 | Outdoor Air Damper Safety Pgain | Proportional gain for Outdoor Air Damper to prevent a freezestat trip | Write | ||
| AV | 47 | Economizer Outdoor Air Enable Setpoint BAS | Temperature setpoint below which economizing can be used | °F | Write | |
| AV | 48 | Economizer Outdoor Air Enthalpy Enable Setpoint BAS | Determine the outdoor air enthalpy below which economizing is enabled | BTU/lb | Write | |
| AV | 49 | Outdoor Air Enthalpy BAS | Outdoor air enthalpy BAS value | BTU/lb | Write | |
| AV | 50 | Outdoor Air Enthalpy Active | The outdoor air enthalpy value being utilized by the unit | BTU/lb | Read | |
| AV | 52 | Cooling Capacity Status | Actual operating unit cooling capacity, in percent | % | Read | |
| AV | 61 | Heat Control Pgain | Proportional gain for Heating PI controller | Write | ||
| AV | 62 | Heating Capacity Primary Status | Unit (primary) heating capacity, in percent | % | Read | |
| AV | 72 | Duct Static Pressure Active | Duct static pressure active value from a sensor connected to the controller | in(H2O) | Read | |
| AV | 73 | Space Temperature BAS | Send the space temperature value | °F | Write | |
| AV | 74 | Space Temperature Active | Active space temperature being used by the controller | °F | Read | |
| AV | 75 | Outdoor Air Temperature BAS | Send the outdoor air temperature sensor value | °F | Write | |
| AV | 76 | Outdoor Air Temperature Active | Active OA temperature currently being used by the controller | °F | Read | |
| AV | 79 | Space Humidity BAS | Send the space relative humidity value | % | Write | |
| AV | 80 | Space Humidity Active | Active space relative humidity being used by the controller | % | Read | |
| AV | 81 | Outdoor Air Humidity BAS | Send the outdoor air humidity sensor value | % | Write | |
| AV | 82 | Outdoor Air Humidity Active | Active outdoor air humidity value used by the controller | % | Read | |
| AVmin | 91 | Duct Static Pressure Setpoint BAS | Request the duct static pressure setpoint value | in(H2O) | Write | |
| AV | 92 | Duct Static Pressure Setpoint Active | Duct static pressure control setpoint value resulting from arbitration | in(H2O) | Read | |
| AV | 101 | Supply Fan Speed Pgain | Proportional gain for Supply Fan PI controller | Write | ||
| AV | 104 | Supply Fan Minimum Speed BAS | Minimum Speed value used for Supply Fan Speed Control | % | Write | |
| AV | 115 | Supply Fan Speed Status | Estimated supply fan speed being utilized | % | Read | |
| AV | 118 | Space Temperature Setpoint Default | Default value of Space Temperature setpoint | °F | Write | |
| AV | 124 | Cooling Command Request | Internal value actual operating unit cooling capacity, in percent | Read | ||
| AV | 125 | Cooling Setpoint High Limit | Value used to limit cooling setpoint | °F | Write | |
| AV | 126 | Cooling Setpoint Low Limit | Value used to limit cooling setpoint | °F | Write | |
| AV | 127 | Heating Setpoint High Limit | Value used to limit heating setpoint | °F | Write | |
| AV | 128 | Heating Setpoint Low Limit | Value used to limit heating setpoint | °F | Write | |
| AV | 133 | Active CoolCoil Control Sensor | Actual sensor value used for Cooling Control | °F | Read | |
| AV | 134 | Active CoolCoil Control Setpoint | Actual setpoint value used for Cooling Control | °F | Read | |
| AV | 135 | Active HeatCoil Control Sensor | Actual sensor value used for Heating Control | °F | Read | |
| AV | 136 | Active HeatCoil Control Setpoint | Actual setpoint value used for Heating Control | °F | Read | |
| AV | 139 | Cooling PID Output | Cooling PI controller output signal used in equipment logic | % | Read | |
| AV | 140 | Heating PID Output | Heating PI controller output signal used in equipment logic | % | Read | |
| AV | 141 | Optional Outdoor Air Minimum Position | % | Read | ||
| AV | 142 | Damper Position Request | Calculated position request to be used for outdoor air damper control | % | Read | |
| AV | 143 | Heat Command Request | Calculated command to be used for heating control | % | Read | |
| AV | 145 | Heating PID Maximum Value | Maximum value limit used for PI controller output for heating control | % | Read | |
| AV | 148 | Humidity Control Sensor | Value of sensor being used for humidity control | % | Read | |
| AV | 149 | Cooling PID Maximum Value | Maximum value limit used for PI controller output for cooling control | % | Read | |
| AV | 150 | Cooling Stages Requested | Calculated number of cooling stages required for cooling control | Read | ||
| AV | 154 | Economizer Minimum Position Setpoint Active | Economizer minimum position setpoint value resulting from arbitration | % | Read | |
| AV | 173 | Compressor P Gain | Proportional gain for Variable Speed Compressor PI controller | Write | ||
| AV | 189 | Discharge Air High Temperature Cutout | Discharge air temperature high limit safety setpoint | °F | Write | |
| AV | 190 | Discharge Air Low Temperature Cutout | Discharge air temperature low limit safety setpoint | °F | Write | |
| AV | 191 | Maximum Discharge Air Heating Setpoint | Maximum value for discharge air temperature heating setpoint | °F | Write | |
| AV | 193 | Discharge Air Reset Setpoint Min BAS | Minimum value used for discharge air setpoint reset | °F | Write | |
| AV | 203 | Supply Fan Maximum Speed Local | Maximum local value of supply fan speed | % | Read | |
| AV | 204 | Supply Fan Minimum Speed Local | Minimum local value of supply fan speed | % | Read | |
| AV | 227 | Return Temperature Setpoint BAS | Define the return temperature Setpoint | °F | Write | |
| AV | 281 | Supply Fan Maximum Speed BAS | BAS value for supply fan maximum speed | % | Write | |
| AV | 314 | Run Time - Compressor 1 (Hours) | Compressor 1 Runtime | Read | ||
| AV | 315 | Compressor 1 Sequence Number | Read | |||
| AV | 327 | Run Time - Compressor 2 (Hours) | Compressor 2 Runtime | Read | ||
| AV | 328 | Compressor 2 Sequence Number | Read | |||
| AV | 341 | Run Time - Compressor 3 (Hours) | Compressor 3 Runtime | Read | ||
| AV | 342 | Compressor 3 Sequence Number | Read | |||
| AV | 355 | Run Time - Compressor 4 (Hours) | Compressor 4 Runtime | Read | ||
| AV | 356 | Compressor 4 Sequence Number | Read | |||
| AV | 360 | Compressor Interstage Delay | Time in minutes between compressor stages to be added or subtracted | Write | ||
| AV | 361 | Compressors Available | Total number of compressors available to be used for mechanical cooling | Read | ||
| AV | 362 | Frostat Cutout Temperature Setpt | Low limit safety cutout temperature setpoint | °F | Write | |
| AV | 363 | Condenser Control Percent of Design | % | Write | ||
| AV | 364 | Condenser Design Max Pressure | Maximum design pressure of the condenser | psi | Read | |
| AV | 365 | Condenser Purge Time(Min) | Defines the condenser purge time (minutes) | Write | ||
| AV | 366 | Condenser Control Pressure Setpoint | Pressure Setpoint used to modulate condenser regulating valves | psi | Read | |
| AV | 368 | Condenser Tee Strainer Calculated Diff Press | Software calculated differential pressure across the condenser strainer | psi | Read | |
| AV | 374 | Condenser Water Low Temperature Cutout | °F | Write | ||
| AV | 375 | Condenser Valve Control P Gain | Proportional gain for Condenser valve PI controller | Write | ||
| AV | 378 | Duct Static Pressure Safety Lockout Setpoint | Software safety setpoint for High Static Pressure Cut out | in(H2O) | Write | |
| AV | 382 | Water Side Econ Calculated Enable Setpoint | Defines the temperature setpoint to enable waterside economizer | °F | Read | |
| AV | 383 | Water Side Econ Sample Time (Min) | Defines the interval time | Write | ||
| AV | 384 | Water Side Econ Valve Control P Gain | Proportional gain for waterside economizer valve PI controller | Write | ||
| AV | 385 | Water Side Economizer Enable Offset | Defines offset used to disable waterside economizer | Δ °F | Write | |
| AV | 386 | Supply Fan Wall Harmonic Offset | Offset used to skip supply fan speeds | Read | ||
| AV | 399 | WSE Mech Cool Delay Time (Min) | Delay time used to call for mechanical cooling | Write | ||
| AV | 493 | Economizer Outdoor Air Temperature Deadband | Outdoor air temperature deadband used for economizer decision | Δ °F | Write | |
| AV | 494 | Economizer Outdoor Air Enthalpy Deadband | Enthalpy deadband used for economizer decision | BTU/lb | Write | |
| AV | 559 | Discharge Air Setpoint Maximum | Discharge air temperature maximum setpoint | °F | Write | |
| AV | 560 | Discharge Air Setpoint Minimum | Discharge air temperature minimum setpoint | °F | Write | |
| AV | 765 | Cool Type | Describes the type of cooling in the unit | Read | ||
| AV | 768 | Reheat Type | Identifies the product reheat type | Read | ||
| AV | 770 | Compressors Running | Total number of compressors actively operating in the unit | Read | ||
| AV | 774 | Primary Filter Differential Pressure Alarm Setpoint BAS | Setpoint value used to generate dirty filter alarm | in(H2O) | Write | |
| AV | 850 | Differential Refrigerant Pressure Circuit 1 | Differential pressure between condenser discharge and suction pressures for Compressor 1 | psi | Read | |
| AV | 851 | Suction Saturated Refrigerant Temperature Circuit 1 | Condenser suction saturated refrigerant temperature for Compressor 1 | °F | Read | |
| AV | 852 | Superheat Temperature Circuit 1 | Superheat Temperature for Compressor 1 | °F | Read | |
| AV | 853 | Evaporator Approach Temperature Circuit 1 | Evaporator approach temperature for Compressor 1 | °F | Read | |
| AV | 854 | Frostat Trips Today Circuit 1 | Total number of froststat trips for Compressor 1 | Read | ||
| AV | 855 | Max Stages Allowed Circuit 1 | Maximum compressors allowed to run on the circuit | Read | ||
| AV | 856 | Condenser Approach Temperature Circuit 1 | Condenser approach temperature for Compressor 1 | Δ °F | Read | |
| AV | 857 | Discharge Saturated Refrigerant Temperature Circuit 1 | Condenser Saturated Refrigerant Temperature for Compressor 1 | °F | Read | |
| AV | 861 | Differential Refrigerant Pressure Circuit 2 | Differential pressure between condenser discharge and suction pressures for Compressor 2 | psi | Read | |
| AV | 862 | Suction Saturated Refrigerant Temperature Circuit 2 | Condenser suction saturated refrigerant temperature for Compressor 2 | °F | Read | |
| AV | 863 | Superheat Temperature Circuit 2 | Superheat Temperature for Compressor 2 | °F | Read | |
| AV | 864 | Evaporator Approach Temperature Circuit 2 | Evaporator approach temperature for Compressor 2 | °F | Read | |
| AV | 865 | Frostat Trips Today Circuit 2 | Total number of froststat trips for Compressor 2 | Read | ||
| AV | 866 | Max Stages Allowed Circuit 2 | Maximum compressors allowed to run on the circuit | Read | ||
| AV | 867 | Condenser Approach Temperature Circuit 2 | Condenser approach temperature for Compressor 2 | Δ °F | Read | |
| AV | 868 | Discharge Saturated Refrigerant Temperature Circuit 2 | Condenser Saturated Refrigerant Temperature for Compressor 1 | °F | Read | |
| AV | 894 | Testing Run Time (Min) | Sets the test step time duration (minutes) | Read | ||
| AV | 895 | Testing Time Remaining (Min) | Read | |||
| AV | 896 | Refrigerant LFL Concentration Alarm Threshold | Alarm setpoint for the concentration of refrigerant | % LFL | Read | |
| AV | 897 | Refrigerant LFL Concentration Warning Threshold | Warning setpoint for the concentration of refrigerant | % LFL | Read | |
| AV | 898 | Condenser Design Leaving Water Temperature | Design value used condenser leaving water temperature | °F | Read | |
| AV | 899 | Condenser Design Entering Water Temperature | Design value used condenser entering water temperature | °F | Read | |
| AV | 900 | Condenser Water Design Delta Temperature | Design value of condenser water delta temperature | Δ °F | Read | |
| AV | 901 | Evaporator Coil Delta Temperature | Δ °F | Read | ||
| AV | 902 | Testing Mode Staging Time (sec) | Write | |||
| AV | 903 | Condenser Water Min Valve Setpoint | Factroy set valuve for the minimum valve is allowed to close | % | Read | |
| AV | 904 | Condenser Water Max Valve Setpoint | Factroy set valuve for the maximum valve is allowed to open | % | Read | |
| AV | 905 | Condenser Min Valve Setpt Local | User set valuve for the minimum valve is allowed to close | % | Write | |
| AV | 906 | Condenser Water Min Valve Setpt Active | The Active setpoint used for how much the valve can close | % | Read | |
| BI | 6 | Mixed Air Low Temperature Cutout Alarm | Safety input for Low Limit Temperature cutout | Read | false = Normal, true = Alarm | |
| BI | 9 | Emergency Stop MSC | Emergency Stop command | Read | false = Stopped, true = Auto | |
| BI | 10 | External Auto Stop Input Status | Status of the externally-wired auto/stop input | Read | false = Stop, true = Auto | |
| BI | 29 | Occupancy Input | Status of the wired occupancy input | Read | false = Occupied, true = Unoccupied | |
| BI | 35 | Phase Monitor Status | Status of local Phase Monitor Input | Read | false = Tripped, true = Okay | |
| BI | 42 | Condenser Water Flow Switch | Water flow proof in the condenser | Read | false = No Flow, true = Flow | |
| BI | 43 | Ventilation Relay Status | Ventillation mode needs to run | Read | false = Inactive, true = Active | |
| BI | 104 | Refrigerant Leak Detection System Input Compressor | A2L sensor input in the condenser section | Read | false = Alarm, true = Normal | |
| BI | 105 | Refrigerant Leak Detection System Input Evaporator | A2L sensor input in the evaporator section | Read | false = Alarm, true = Normal | |
| BI | 106 | Safety Circuit Status Compressor 1 | Status of the safety circuit for Compressor 1 | Read | false = Open, true = Closed | |
| BI | 107 | Safety Circuit Status Compressor 2 | Status of the safety circuit for Compressor 2 | Read | false = Open, true = Closed | |
| BI | 108 | Safety Circuit Status Compressor 3 | Status of the safety circuit for Compressor 3 | Read | false = Open, true = Closed | |
| BI | 109 | Safety Circuit Status Compressor 4 | Status of the safety circuit for Compressor 4 | Read | false = Open, true = Closed | |
| BI | 130 | High Pressure Cutout Circuit 1 | Status of High Pressure cutout safety device for Circuit 1 | Read | false = Alarm, true = Normal | |
| BI | 131 | High Pressure Cutout Circuit 2 | Status of High Pressure cutout safety device for Circuit 2 | Read | false = Alarm, true = Normal | |
| BI | 137 | ECM Fault Supply Fan 1 | Fault status for Supply Fan 1 | Read | false = Alarm, true = Normal | |
| BI | 138 | ECM Fault Supply Fan 2 | Fault status for Supply Fan 2 | Read | false = Alarm, true = Normal | |
| BI | 139 | ECM Fault Supply Fan 3 | Fault status for Supply Fan 3 | Read | false = Alarm, true = Normal | |
| BI | 140 | ECM Fault Supply Fan 4 | Fault status for Supply Fan 4 | Read | false = Alarm, true = Normal | |
| BI | 141 | ECM Fault Supply Fan 5 | Fault status for Supply Fan 5 | Read | false = Alarm, true = Normal | |
| BI | 142 | ECM Fault Supply Fan 6 | Fault status for Supply Fan 6 | Read | false = Alarm, true = Normal | |
| BI | 143 | ECM Fault Supply Fan 7 | Fault status for Supply Fan 7 | Read | false = Alarm, true = Normal | |
| BO | 1 | Supply Fan Start Stop Command | Fans 1-4 are being commanded on | Read | false = Off, true = On | |
| BO | 11 | Compressor 1 Command | Compressor 1 Start/Stop Command | Read | false = Normal, true = Estop Active | |
| BO | 12 | Compressor 2 Command | Compressor 2 Start/Stop Command | Read | false = Normal, true = Reset | |
| BO | 13 | Compressor 3 Command | Compressor 3 Start/Stop Command | Read | false = Off, true = On | |
| BO | 14 | Compressor 4 Command | Compressor 4 Start/Stop Command | Read | false = Off, true = On | |
| BO | 21 | Heat Output 1 | Heat Output 1 Start/Stop Command | Read | false = Off, true = On | |
| BO | 22 | Heat Output 2 | Heat Output 2 Start/Stop Command | Read | false = Off, true = On | |
| BO | 23 | Heat Output 3 | Heat Output 3 Start/Stop Command | Read | false = Off, true = On | |
| BO | 44 | Refrigerant Mitigation Push | Unit is in Refrigerant Mitigation | Read | false = Normal, true = Alarm | |
| BO | 101 | Supply Fan Start Stop Command 2 | Fans 5-7 are being commanded on | Read | false = Off, true = On | |
| BO | 111 | Supply Fan Status Output | Output indicating the Supply Fan has status | Read | false = Off, true = On | |
| BO | 125 | Cooling Tower Pump Request | Output to request Cooling Tower Pump operation | Read | false = Off, true = On | |
| BO | 126 | Unit Alarm Output Command | Unit level alarm output | Read | false = Normal, true = Alarm Present | |
| BV | 2 | Supply Fan Failure Reset | Reset Supply fan failure | Write | false = Normal, true = Reset | |
| BV | 11 | Diagnostic: Space Temperature Source Failure | Read | false = Normal, true = In Alarm | ||
| BV | 12 | Diagnostic: Space Humidity Source Failure | Read | false = Normal, true = Fail | ||
| BV | 13 | Diagnostic: Outdoor Air Temperature Source Failure | Read | false = Normal, true = In Alarm | ||
| BV | 14 | Diagnostic: Outdoor Air Humidity Source Failure | Read | false = Normal, true = In Alarm | ||
| BV | 15 | Diagnostic: Duct Static Pressure Failure | Read | false = Normal, true = Fail | ||
| BV | 18 | Cooling Safeties OK | That cooling permissive safeties status | Read | false = No, true = Yes | |
| BV | 21 | Heat Cool Mode Active | Unit active mode | Read | false = Heat, true = Cool | |
| BV | 22 | Night Heat Cool | Status of Unoccupied Heat/Cool operation | Read | false = Off, true = On | |
| BV | 29 | Compressor 1 Lockout BAS | Lockout Compressor 1 | Write | false = Available, true = Locked Out | |
| BV | 30 | Compressor 2 Lockout BAS | Lockout Compressor 2 | Write | false = Available, true = Locked Out | |
| BV | 31 | Compressor 3 Lockout BAS | Lockout Compressor 3 | Write | false = Available, true = Locked Out | |
| BV | 32 | Compressor 4 Lockout BAS | Lockout Compressor 4 | Write | false = Available, true = Locked Out | |
| BV | 35 | Circuit 2 Enable Status | Circuit 2 is enabled | Read | False = Disable, True = Enable | |
| BV | 36 | Alarm Reset | Reset unit latching alarms | Write | false = Normal, true = Reset | |
| BV | 37 | Diagnostic: Auto Reset | Read | false = Normal, true = In Alarm | ||
| BV | 41 | Diagnostic: Discharge Air High Temperature Lockout | Read | false = Normal, true = In Alarm | ||
| BV | 42 | Diagnostic: Discharge Air Temperature Source Failure | Read | false = Normal, true = In Alarm | ||
| BV | 47 | Discharge Air Reset Lockout | Allows the unit to do a Fixed or Reset Discharge Air Control | Write | false = Reset Active, true = Reset Locked Out | |
| BV | 52 | Mixed Air Low Limit Active | Mixed air low limit temperature safety is active | Read | false = Off, true = On | |
| BV | 62 | Fan Latch | Internal point used to latch supply fan operation | Read | false = Off, true = On | |
| BV | 63 | Startup Delay Completed | Delay startup is completed to allow cooling/heating | Read | false = No, true = Yes | |
| BV | 64 | Outdoor Air Damper at Max | Outdoor Air Damper is at maximum open position | Read | false = No, true = Yes | |
| BV | 65 | Fan Safeties OK | Fan safeties status | Read | false = No, true = Yes | |
| BV | 69 | Circuit 1 Enable Status | Circuit 1 is enabled | Read | False = Disable, True = Enable | |
| BV | 70 | Diagnostic: Condenser Water Low Temperature Lockout | Read | false = Normal, true = In Alarm | ||
| BV | 75 | Economizer Interlock OK | Economizer is unable to keep up and needs mechanical cooling | Read | false = No, true = Yes | |
| BV | 76 | Active CoolCoil Control Sensor Failed | The sensor used to control Cooling Coil has failed | Read | false = No, true = Yes | |
| BV | 77 | Active HeatCoil Control Sensor Failed | The sensor used to control Heating Coil has failed | Read | false = No, true = Yes | |
| BV | 78 | Optional Heat Enable Command | Lock enable the heat in specific conditions determined by the controller | Read | false = Off, true = On | |
| BV | 79 | Optional Heat Lockout | Lock out the heat in specific conditions determined by the controller | Read | false = Inactive, true = Locked Out | |
| BV | 80 | Heating Lockout BAS | Lockout Heating | Write | false = Inactive, true = Locked Out | |
| BV | 81 | Diagnostic: Humidity Control Sensor Failure | Read | false = Normal, true = Fail | ||
| BV | 108 | Diagnostic: Discharge Air Low Temperature Lockout | Read | false = Normal, true = In Alarm | ||
| BV | 182 | Economizer Include Outdoor Air Temp Limit | Write | false = No, true = Yes | ||
| BV | 184 | Supply Air Tempering Status | Status of the Supply Air Tempering function | Read | false = Inactive, true = Active | |
| BV | 190 | Compressor 1 Calculated Status | Compressor 1 status | Read | false = Off, true = On | |
| BV | 191 | Compressor 1 Call | Compressor 1 call from Test routine | Read | false = Stop, true = Run | |
| BV | 196 | Compressor 1 Run Time Reset | Compressor 1 Runtime Reset | Write | false = Normal, true = Reset | |
| BV | 197 | Compressor 1 Safety Lockout | Status of safety lockout of Compressor 1 | Read | false = Off, true = On | |
| BV | 200 | Compressor 2 Calculated Status | Compressor 2 status | Read | false = Off, true = On | |
| BV | 201 | Compressor 2 Call | Compressor 2 call from Test routine | Read | false = Stop, true = Run | |
| BV | 206 | Compressor 2 Run Time Reset | Compressor 2 Runtime Reset | Write | false = Normal, true = Reset | |
| BV | 207 | Compressor 2 Safety Lockout | Status of safety lockout of Compressor 2 | Read | false = Off, true = On | |
| BV | 210 | Compressor 3 Calculated Status | Compressor 3 status | Read | false = Off, true = On | |
| BV | 211 | Compressor 3 Call | Compressor 3 call from Test routine | Read | false = Stop, true = Run | |
| BV | 216 | Compressor 3 Run Time Reset | Compressor 3 Runtime Reset | Write | false = Normal, true = Reset | |
| BV | 217 | Compressor 3 Safety Lockout | Status of safety lockout of Compressor 3 | Read | false = Off, true = On | |
| BV | 220 | Compressor 4 Calculated Status | Compressor 4 status | Read | false = Off, true = On | |
| BV | 221 | Compressor 4 Call | Compressor 4 call from Test routine | Read | false = Stop, true = Run | |
| BV | 226 | Compressor 4 Run Time Reset | Compressor 4 Runtime Reset | Write | false = Normal, true = Reset | |
| BV | 227 | Compressor 4 Safety Lockout | Status of safety lockout of Compressor 4 | Read | false = Off, true = On | |
| BV | 250 | Compressor Cond Valve Installed | Condenser Valves are installed or not | Write | false = Not Installed, true = Installed | |
| BV | 251 | Condenser Water Flow Type | Define type of Condenser water flow (Variable or Constant) | Write | false = Variable Flow, true = Constant Flow | |
| BV | 255 | Water Side Economizer Lockout BAS | Lockout Waterside Economizer | Write | false = Available, true = Locked Out | |
| BV | 257 | Water Side Econ Purge Status | Waterside Economizer Purge Status | Write | false = Off, true = Active Purge | |
| BV | 265 | Diagnostic: Compressor 1 Safety Circuit Alarm | Read | false = Normal, true = Failure | ||
| BV | 275 | Diagnostic: Compressor 2 Safety Circuit Alarm | Read | false = Normal, true = Failure | ||
| BV | 285 | Diagnostic: Compressor 3 Safety Circuit Alarm | Read | false = Normal, true = Failure | ||
| BV | 295 | Diagnostic: Compressor 4 Safety Circuit Alarm | Read | false = Normal, true = Failure | ||
| BV | 321 | Diagnostic: Software High Duct Static Alarm | Read | false = Normal, true = In Alarm | ||
| BV | 322 | Diagnostic: Condenser Water Flow Loss | Read | false = Normal, true = Flow Loss | ||
| BV | 326 | Fixed Speed Compressor Rotate BAS | User point to force rotate the compressor sequence | Write | false = Normal, true = Rotate | |
| BV | 327 | Fixed Speed Compressor Rotate Schedul= BAS/Local | Write | false = Local, true = BAS | ||
| BVmin | 329 | Front Panel Auto Stop | Write | false = Stop, true = Auto | ||
| BV | 330 | Supply Fan 1 Calculated Status | Read | false = Off, true = Running | ||
| BV | 331 | Supply Fan 1 Failure | Supply Fan 1 failure status | Read | false = Normal, true = Failed | |
| BV | 335 | Supply Fan 2 Calculated Status | Read | false = Off, true = Running | ||
| BV | 336 | Supply Fan 2 Failure | Supply Fan 2 failure status | Read | false = Normal, true = Failed | |
| BV | 340 | Supply Fan 3 Calculated Status | Read | false = Off, true = Running | ||
| BV | 341 | Supply Fan 3 Failure | Supply Fan 3 failure status | Read | false = Normal, true = Failed | |
| BV | 345 | Supply Fan 4 Calculated Status | Read | false = Off, true = Running | ||
| BV | 346 | Supply Fan 4 Failure | Supply Fan 4 failure status | Read | false = Normal, true = Failed | |
| BV | 350 | Supply Fan 5 Calculated Status | Read | false = Off, true = Running | ||
| BV | 351 | Supply Fan 5 Failure | Supply Fan 5 failure status | Read | false = Normal, true = Failed | |
| BV | 355 | Supply Fan 6 Calculated Status | Read | false = Off, true = Running | ||
| BV | 356 | Supply Fan 6 Failure | Supply Fan 6 failure status | Read | false = Normal, true = Failed | |
| BVmin | 360 | Supply Fan Calculated Status | Any Supply Fan is running | Read | false = Off, true = Running | |
| BV | 363 | Warning: High Condenser Water Delta Temperature | Read | false = Normal, true = Warning Active | ||
| BV | 364 | Warning: High Condenser Water Entering Temperature | Read | false = Normal, true = Warning Active | ||
| BV | 388 | Diagnostic Dirty Primary Filter | Resets the primary air filter alarm | Read | false = Normal, true = Dirty | |
| BV | 556 | Refrigerant Mitigation Active | Active when the Controller is in a mitigation state for any reason | Read | false = Normal, true = Alarm | |
| BV | 558 | Diagnostic: Refrigerant LVL Concentration Sensor Compressor | The A2L concentration sensor has failed | Read | false = Normal, true = Alarm | |
| BV | 559 | Diagnostic: Refrigerant LVL Concentration Sensor Evaporator | The A2L concentration sensor has failed | Read | false = Normal, true = Alarm | |
| BV | 579 | Factory Startup | Write | false = Field Startup, true = Factory Startup | ||
| BV | 600 | Circuit 1 Failure Reset | Reset Circuit 1 latching failure alarm | Read | false = Off, true = On | |
| BV | 601 | Circuit 2 Failure Reset | Reset Circuit 2 latching failure alarm | Read | false = Off, true = On | |
| BV | 605 | Reset Dirty Air filter | Reset the dirty air filter alarm | Write | false = Off, true = Reset | |
| BV | 606 | Circuit 1 Safety Lockout | Safety lockout has occured on circuit 1 | Read | false = Normal, true = Failure | |
| BV | 607 | Circuit 2 Safety Lockout | Safety lockout has occured on circuit 2 | Read | false = Normal, true = Failure | |
| BV | 610 | Diagnostic: Circuit 1 Discharge Pressure Sensor Failure | Discharge pressure sensor has failed on circuit 1 | Read | false = Normal, true = Alarm | |
| BV | 611 | Diagnostic: Circuit 1 High Pressure Shutdown | High pressure switch has opened on compressor 1 | Read | false = Normal, true = In Alarm | |
| BV | 612 | Diagnostic: Circuit 1 High Superheat | Unit has calculated a high superheat condition on compressor 1 | Read | false = Normal, true = In Alarm | |
| BV | 613 | Diagnostic: Circuit 1 Low Superheat | Unit has calculated a low superheat condition on compressor 1 | Read | false = Normal, true = In Alarm | |
| BV | 615 | Diagnostic: Circuit 1 Suction Pressure Sensor Failure | Suction pressure sensor has failed on circuit 1 | Read | false = Normal, true = In Failure | |
| BV | 616 | Diagnostic: Circuit 1 Suction Temperature Sensor Failure | Suction temperature sensor has failed on circuit 1 | Read | false = Normal, true = In Failure | |
| BV | 620 | Diagnostic: Circuit 2 Discharge Pressure Sensor Failure | Discharge pressure sensor has failed on circuit 2 | Read | false = Normal, true = Alarm | |
| BV | 621 | Diagnostic: Circuit 2 High Pressure Shutdown | High pressure switch has opened on compressor 2 | Read | false = Normal, true = In Alarm | |
| BV | 622 | Diagnostic: Circuit 2 High Superheat | Unit has calculated a high superheat condition on compressor 2 | Read | false = Normal, true = In Alarm | |
| BV | 623 | Diagnostic: Circuit 2 Low Superheat | Unit has calculated a low superheat condition on compressor 2 | Read | false = Normal, true = In Alarm | |
| BV | 625 | Diagnostic: Circuit 2 Suction Pressure Sensor Failure | Suction pressure sensor has failed on circuit 2 | Read | false = Normal, true = In Failure | |
| BV | 626 | Diagnostic: Circuit 2 Suction Temperature Sensor Failure | Suction temperature sensor has failed on circuit 2 | Read | false = Normal, true = In Failure | |
| BV | 650 | Warning Circuit 1 Cond Limit Status | Condenser pressure is reaching the warning setpoint for circuit 1 | Read | false = Normal, true = Limited Capacity | |
| BV | 652 | Warning: Circuit 1 Frostat Warning | Frost condition exists on circuit 1 | Read | false = Normal, true = Warning Active | |
| BV | 656 | Warning: Circuit 2 Cond Limit Status | Condenser pressure is reaching the warning setpoint for circuit 2 | Read | false = Normal, true = Limited Capacity | |
| BV | 658 | Warning: Circuit 2 Frostat Warning | Frost condition exists on circuit 2 | Read | false = Normal, true = Warning Active | |
| BV | 664 | Warning: Refrigerant LVL Lower Level Threshold Active | Refrigerant concentration is at the warning level | Read | false = Normal, true = Warning Active | |
| BV | 665 | Compressor Condenser Valve Open | Compressor condenser valves open status | Read | false = Closed, true = Open | |
| BV | 666 | Compressor Condenser Purge Status | Purge status of the condenser | Write | false = Off, true = Active Purge | |
| BV | 667 | Set Flow Switch | Write | false = Off, true = On | ||
| BV | 690 | Supply Fan 7 Calculated Status | Read | false = Off, true = Running | ||
| BV | 691 | Supply Fan 7 Failure | Supply Fan 7 failure status | Read | false = Normal, true = Failed | |
| BV | 730 | CSC Heat Placement | Remote heat is installed in the unit | Read | false = Not Remote, true = Remote | |
| MVmin | 1 | Occupancy Request | Used by the BMS to command the unit into an occupancy mode | Write | 1 = Occupied, 2 = Unoccupied, 3 = Occupied Bypass, 4 = Occupied Standby, 5 = Auto | |
| MVmin | 2 | Occupancy Status | Active occupancy mode of the controller | Read | 1 = Occupied, 2 = Unoccupied, 3 = Occupied Bypass, 4 = Occupied Standby, 5 = Auto | |
| MVmin | 3 | Heat Cool Mode Request | Command the unit into a heat/cool mode | Write | 1 = Auto, 2 = Heat, 3 = Morning Warm-up, 4 = Cool, 5 = Night Purge, 6 = Pre Cool, 7 = Off, 8 = Test, 9 = Emergency Heat, 10 = Fan Only, 11 = Free Cool, 12 = Ice-Making, 13 = Maximum Heat, 14 = Economizer, 15 = Dehumidify, 16 = Calibrate | |
| MV | 4 | Heat Cool Mode Status | Current heat cool mode of the controller | Read | 1 = Auto, 2 = Heat, 3 = Morning Warm-up, 4 = Cool, 5 = Night Purge, 6 = Pre Cool, 7 = Off, 8 = Test, 9 = Emergency Heat, 10 = Fan Only, 11 = Free Cool, 12 = Ice-Making, 13 = Maximum Heat, 14 = Economizer, 15 = Dehumidify, 16 = Calibrate | |
| MV | 8 | Emergency Override BAS | Command the unit into an emergency mode of operation | Write | 1 = Normal, 2 = Pressurize, 3 = Depressurize, 4 = Purge, 5 = Shutdown, 6 = Fire | |
| MV | 9 | Water Valve Override | Override the Hot water valve | Write | 1 = Off, 2 = Not Valid, 3 = CHW Open, 4 = HW Open, 5 = Open, 6 = Close | |
| MV | 11 | Economizer Airside Enable BAS | Enable airside economizing | Write | 1 = Disabled, 2 = Enabled, 3 = Auto | |
| MV | 14 | Economizer Mode | Indicate the method of enabling airside economizing | Read | 1 = Disabled, 2 = Fixed Dry Bulb, 3 = Differential Dry Bulb, 4 = Fixed Enthalpy, 5 = Differential Enthalpy, 6 = Fixed Dewpoint and Dry Bulb, 7 = BAS Control | |
| MV | 15 | Economizer System Status | Operating state of the airside economizer system | Read | 1 = Disabled, 2 = Enabled, 3 = Not Present | |
| MV | 36 | Heat Cool Mode Display Status | Current heat cool mode of the controller | Read | 1 = Auto, 2 = Heat, 3 = Morning Warm-up, 4 = Cool, 5 = Night Purge, 6 = Pre Cool, 7 = Off, 8 = Dehum-Heating, 9 = Emergency Heat, 10 = Fan Only, 11 = Free Cool, 12 = Ice-Making, 13 = Maximum Heat, 14 = Economizer, 15 = Dehumidify, 16 = Dehum-Cooling | |
| MV | 42 | DX Staging Status | Current status of DX cooling staging algorithm | Read | 1 = Normal, 2 = Start Interval Active, 3 = Shutdown Delay Active, 4 = Subtract Suspended | |
| MV | 43 | Heat Staging Status | Current status of Heating staging algorithm | Read | 1 = Normal, 2 = Start Interval Active, 3 = Shutdown Delay Active, 4 = Subtract Suspended | |
| MV | 60 | Discharge Air Temperature Setpoint Source Status | Source of Discharge Air Temperature setpoint | Read | 1 = BAS Control, 2 = Local Control, 3 = BAS Default, 4 = Not Controlled, 5 = Space Comfort Not in Control | |
| MV | 61 | Space Temperature Setpoint Source Status | Source of Space Temperature setpoint | Read | 1 = BAS, 2 = Local, 3 = Default, 4 = Not Controlled | |
| MV | 62 | Space Temperature Source Status | Source of Space Temperaure | Read | 1 = BAS, 2 = Local, 3 = Default, 4 = Not Controlled | |
| MV | 70 | Compressor 1 Mode | Compressor 1 current control mode | Read | 1 = Off, 2 = Starting, 3 = Running, 4 = Diag: Safety Circuit Alarm, 5 = Diag: Low Superheat, 6 = Diag: Suction Press Sensor Failure, 7 = Diag: Suction Temp Sensor Failure, 8 = Diag: Frostat Aarm, 9 = Diag: Discharge Press Sensor Failure, 10 = Diag: High Pressure Cutout Alarm, 11 = VFD Fault/Comp Fault, 12 = Diag: High Superheat, 13 = Warn: Cond Limit Active, 14 = Comp Locked Out, 15 = Warn: Frostat Limit Active, 16 = Running Unloaded | |
| MV | 71 | Compressor 2 Mode | Compressor 2 current control mode | Read | 1 = Off, 2 = Starting, 3 = Running, 4 = Diag: Safety Circuit Alarm, 5 = Diag: Low Superheat, 6 = Diag: Suction Press Sensor Failure, 7 = Diag: Suction Temp Sensor Failure, 8 = Diag: Frostat Aarm, 9 = Diag: Discharge Press Sensor Failure, 10 = Diag: High Pressure Cutout Alarm, 11 = VFD Fault/Comp Fault, 12 = Diag: High Superheat, 13 = Warn: High Disc Press, 14 = Comp Locked Out, 15 = Warn: Frostat Warning | |
| MV | 72 | Compressor 3 Mode | Compressor 3 current control mode | Read | 1 = Off, 2 = Starting, 3 = Running, 4 = Diag: Safety Circuit Alarm, 5 = Diag: Low Superheat, 6 = Diag: Suction Press Sensor Failure, 7 = Diag: Suction Temp Sensor Failure, 8 = Diag: Frostat Aarm, 9 = Diag: Discharge Press Sensor Failure, 10 = Diag: High Pressure Cutout Alarm, 11 = VFD Fault/Comp Fault, 12 = Diag: High Superheat, 13 = Warn: High Disc Press, 14 = Comp Locked Out, 15 = Warn: Frostat Warning | |
| MV | 73 | Compressor 4 Mode | Compressor 4 current control mode | Read | 1 = Off, 2 = Starting, 3 = Running, 4 = Diag: Safety Circuit Alarm, 5 = Diag: Low Superheat, 6 = Diag: Suction Press Sensor Failure, 7 = Diag: Suction Temp Sensor Failure, 8 = Diag: Frostat Aarm, 9 = Diag: Discharge Press Sensor Failure, 10 = Diag: High Pressure Cutout Alarm, 11 = VFD Fault/Comp Fault, 12 = Diag: High Superheat, 13 = Warn: High Disc Press, 14 = Comp Locked Out | |
| MV | 79 | Mechanical Cooling Stages Failed | Total ammount of current compressors that have failed | Read | 1 = 1 Comp Failed, 2 = 2 Comp Failed, 3 = 3 Comp Failed, 4 = 4 Comp Failed, 5 = None Failed | |
| MV | 80 | Mechanical Cooling Stages Active | Total ammount of current compressors that are actively operating | Read | 1 = 0 Compressors, 2 = 1 Compressor, 3 = 2 Compressors, 4 = 3 Compressors, 5 = 4 Compressors | |
| MV | 85 | Water Side Economizer Mode Status | Status of water side economizer | Read | 1 = Disabled, 2 = Sampling, 3 = Enabled, 4 = WSE and Mech, 5 = WSE Locked Out, 6 = Not Present | |
| MV | 86 | Ventilation Override Input Mode | Requested ventilation mode | Write | 1 = Inactive, 2 = Mode A Active, 3 = Mode B Active, 4 = Mode C Active, 5 = Mode D Active, 6 = Mode E Active | |
| MV | 87 | Ventilation Override Status | Status of ventilation override mode | Read | 1 = Inactive, 2 = Mode A Active, 3 = Mode B Active, 4 = Mode C Active, 5 = Mode D Active, 6 = Mode E Active | |
| MV | 89 | Supply Fans Installed | Number of Supply Fans on the unit | Read | 1 = 1 Fan, 2 = 2 Fans, 3 = 3 Fans, 4 = 4 Fans, 5 = 5 Fans, 6 = 6 Fans, 7 = 7 Fans, 8 = None | |
| MV | 90 | Supply Fans Failed | Total ammount of current compressors that have failed | Read | 1 = 1 Fan Failed, 2 = 2 Fans Failed, 3 = 3 Fans Failed, 4 = 4 Fans Failed, 5 = 5 Fans Failed, 6 = 6 Fans Failed, 7 = None Failed | |
| MV | 100 | Unit Information | Internal unit information value | Read | ||
| MV | 170 | Supply Fan 1 Mode | Supply Fan 1 current control mode | Read | 1 = Off, 2 = Start, 3 = Run, 4 = Alarm | |
| MV | 171 | Supply Fan 2 Mode | Supply Fan 2 current control mode | Read | 1 = Off, 2 = Start, 3 = Run, 4 = Alarm | |
| MV | 172 | Supply Fan 3 Mode | Supply Fan 3 current control mode | Read | 1 = Off, 2 = Start, 3 = Run, 4 = Alarm | |
| MV | 173 | Supply Fan 4 Mode | Supply Fan 4 current control mode | Read | 1 = Off, 2 = Start, 3 = Run, 4 = Alarm | |
| MV | 174 | Supply Fan 5 Mode | Supply Fan 5 current control mode | Read | 1 = Off, 2 = Start, 3 = Run, 4 = Alarm | |
| MV | 175 | Supply Fan 6 Mode | Supply Fan 6 current control mode | Read | 1 = Off, 2 = Start, 3 = Run, 4 = Alarm | |
| MV | 176 | Supply Fan 7 Mode | Supply Fan 6 current control mode | Read | 1 = Off, 2 = Start, 3 = Run, 4 = Alarm | |
| MV | 179 | Refrigerant Type | Type of refrigerant in the unit | Write | ||
| MV | 180 | CSC Testing Override | Write | 1 = Test Inactive, 2 = Start Test, 3 = SF Cmd 1 On, 4 = SFCmd 2 On, 5 = Fan 1 On 30%, 6 = Fan 1 Off, 7 = Fan 2 On 30%, 8 = Fan 2 Off, 9 = Fan 3 On 30%, 10 = Fan 3 Off, 11 = Fan 4 On 30%, 12 = Fan 4 Off, 13 = Fan 5 On 30%, 14 = Fan 5 Off, 15 = Fan 6 On 30%, 16 = Fan 6 Off, 17 = Fan 7 On 30%, 18 = Fan 7 Off, 19 = All Fans On 25%, 20 = All Fans On 50%, 21 = All Fans Auto, 22 = Cooling Test Start, 23 = Heating Test Start, 24 = Economizer Test Start, 25 = Test Disable/Auto Release | ||
| MV | 181 | CSC Testing Status | Read | 1 = Test Inactive, 2 = Test Starting, 3 = Test Ready, 4 = Test Running, 5 = Fan Contactor 1 On, 6 = Fan Contactor 2 On, 7 = Fan 1 On 30%, 8 = Fan 1 Off, 9 = Fan 2 On 30%, 10 = Fan 2 Off, 11 = Fan 3 On 30%, 12 = Fan 3 Off, 13 = Fan 4 30%, 14 = Fan 4 Off, 15 = Fan 5 30%, 16 = Fan 5 Off, 17 = Fan 6 30%, 18 = Fan 6 Off, 19 = Fan 7 On 30%, 20 = Fan 7 Off, 21 = All fans 25%, 22 = All fans 50%, 23 = All Fan Auto, 24 = Cooling Test Active, 25 = Heating Test Active, 26 = Econ Test Active, 27 = Test Fail/Check Diag, 28 = Cool Test Fail/Check Diag, 29 = Heat Test Fail/Check Diag, 30 = Test Stoppped/No Fan Stat | ||
| MV | 182 | CSC Current Testing Override | Write | 1 = Test Inactive, 2 = Start Test, 3 = SF Cmd 1 On, 4 = SFCmd 2 On, 5 = Fan 1 On 30%, 6 = Fan 1 Off, 7 = Fan 2 On 30%, 8 = Fan 2 Off, 9 = Fan 3 On 30%, 10 = Fan 3 Off, 11 = Fan 4 On 30%, 12 = Fan 4 Off, 13 = Fan 5 On 30%, 14 = Fan 5 Off, 15 = Fan 6 On 30%, 16 = Fan 6 Off, 17 = Fan 7 On 30%, 18 = Fan 7 Off, 19 = All Fans On 25%, 20 = All Fans On 50%, 21 = All Fans Auto, 22 = Cooling Test Start, 23 = Heating Test Start, 24 = Test Disable/Auto Release | ||
| MV | 183 | CSC Cooling Test Override | Write | 1 = Test Inactive, 2 = All Comp Off, 3 = Comp 1 On, 4 = Comp 2 On, 5 = Comp 3 On, 6 = Comp 4 On, 7 = Test Complete/Auto Release | ||
| MV | 184 | CSC Cooling Test Status | Read | 1 = Test Inactive, 2 = Test Starting, 3 = Test Ready, 4 = Test Running, 5 = No Fan Status, 6 = Test Fail/Check Diag, 7 = Comp 1 Start, 8 = Comp 1 On, 9 = Comp 1 Fail, 10 = Comp 2 Start, 11 = Comp 2 On, 12 = Comp 2 Fail, 13 = Comp 3 Start, 14 = Comp 3 On, 15 = Comp 3 Fail, 16 = Comp 4 Start, 17 = Comp 4 On, 18 = Comp 4 Fail, 19 = Comp 5 Start, 20 = Comp 5 On, 21 = Comp 5 Fail, 22 = Comp 6A Start, 23 = Comp 6A On, 24 = Comp 6A Fail, 25 = Comp 6B Start, 26 = Comp 6B On, 27 = Comp 6B Fail, 28 = Circ 6 Start, 29 = Circ 6 On, 30 = Circ 6 Fai, 31 = Test Done/Auto Release | ||
| MV | 187 | CSC Economizer Test Override | Write | 1 = Test Inactive, 2 = Start Test, 3 = Open Economizer, 4 = Close Economizer, 5 = Test Complete/Auto Release | ||
| MV | 188 | CSC Economizer Test Status | Read | 1 = Test Inactive, 2 = Test Starting, 3 = Test Ready, 4 = Test Running, 5 = No Fan Status, 6 = Test Fail/Check Diag, 7 = Econ Open Cmd, 8 = Econ Calc Open, 9 = Econ Close Cmd, 10 = Econ Calc Closed, 11 = Test Done/Auto Release | ||
| MVmin | 189 | CSC Unit Status | Operationg status of the unit | Read | 1 = Normal, 2 = Unit Off, 3 = Warning Present, 4 = Alarm Present, 5 = Exterior Stop, 6 = Local Stop, 7 = E-Stop, 8 = BAS Fire, 9 = BAS Shutdown | |
| MV | 190 | CSC Unit Discharge Air Control Strategy | Discharge air control strategy used by the unit | Read | 1 = Test Inactive, 2 = Test Starting, 3 = Test Ready, 4 = Test Running, 5 = No Fan Status, 6 = Test Fail/Check Diag, 7 = Econ Open Cmd, 8 = Econ Calc Open, 9 = Econ Close Cmd, 10 = Econ Calc Closed, 11 = Test Done/Auto Release |
No points match these filters.
Integration notes
- Only the points that apply to the unit's factory configuration show up; the doc lists every possible point.
- Name suffixes carry meaning: Status/Local/Active/Input are read-only, BAS/Command/Request/Setpoint value objects are the ones a BAS writes, and Arbitrator objects show which source is winning.
- The Symbio 500 integration guide (BAS-SVP087) centers on BACnet MS/TP (rotary address 001-120) and also mentions BACnet IP connections.
- BV 327 is printed with a garbled name ('Fixed Speed Compressor Rotate Schedul= BAS/Local'); it is kept as printed.
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 Symbio 500 Commercial Self-Contained (SWUD) 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 Trane Symbio 500 Commercial Self-Contained (SWUD)
How many BACnet points does the Trane Symbio 500 Commercial Self-Contained (SWUD) have?
This list has 356 BACnet objects: 20 analog inputs, 12 analog outputs, 132 analog values, 22 binary inputs, 13 binary outputs, 113 binary values, 44 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Trane Symbio 500 Commercial Self-Contained (SWUD) BACnet points are writable?
89 of the 356 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 Trane Symbio 500 Commercial Self-Contained (SWUD) BACnet documentation?
The source is Symbio 500 Integration Point List BACnet - Commercial Self-Contained (SWUD*) (BAS-PTS038B-EN), revision 09/26/2025, published free by Trane at https://elibrary.tranetechnologies.com/public/commercial-hvac/Literature/Points%20List/BAS-PTS038B-EN_09262025.pdf.
What are the minimum BACnet points to integrate the Trane Symbio 500 Commercial Self-Contained (SWUD)?
Start with MV 1 Occupancy Request (Occupancy command from the BMS schedule); BV 329 Front Panel Auto Stop (Auto/stop of the unit (relinquish default is Stop)); MV 3 Heat Cool Mode Request (Mode command from the BMS); AV 7 Space Temperature Setpoint BAS (Space setpoint from the BMS); AV 24 Discharge Air Cooling Setpoint BAS (Supply air cooling setpoint from the BMS); AV 91 Duct Static Pressure Setpoint BAS (Duct static setpoint from the BMS); MV 2 Occupancy Status (Confirms the occupancy in effect); BV 360 Supply Fan Calculated Status (Any supply fan running); AI 11 Discharge Air Temperature (Supply air temperature); MV 189 CSC Unit Status (Overall unit status: normal, off, warning, alarm, stops).
How do I enable BMS control of the Trane Symbio 500 Commercial Self-Contained (SWUD)?
BAS vs Local is chosen per sensor and setpoint with the BAS Control Selection tool in the Symbio UI. BV 329 Front Panel Auto Stop (Auto/Stop, relinquish default Stop) and BI 10 External Auto Stop Input Status cover unit start/stop. The documents don't spell out how those two interact.
Does the Trane Symbio 500 Commercial Self-Contained (SWUD) need a BACnet heartbeat or have a communication timeout?
Among the BAS inputs only AV 73 Space Temperature BAS lists a heartbeat (900 s) in the points list (AV 901 and AV 903-906 list 1); the documents don't describe what happens on expiry. BV 11 'Diagnostic: Space Temperature Source Failure' is the related alarm flag.
Can the BMS supply sensor values to the Trane Symbio 500 Commercial Self-Contained (SWUD)?
Set the sensor to BAS in BAS Control Selection, then write AV 73 Space Temperature BAS, AV 75 Outdoor Air Temperature BAS, AV 79 Space Humidity BAS or AV 81 Outdoor Air Humidity BAS. MV 62 Space Temperature Source Status shows BAS/Local/Default, and the 'Source Failure' BVs (BV 11-14, BV 42) flag a lost source.
How do I check these points on the real Symbio 500 Commercial Self-Contained (SWUD)?
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 Trane BACnet points lists
- Rooftop unit communication interface (ReliaTel)
Trane BCI2-R (ReliaTel)
Trane packaged rooftop units with ReliaTel controls (Voyager, Precedent, Odyssey) fitted with the BCI2-R BACnet card.
Also known as: BCI2-R, BCI2R, ReliaTel BACnet interface, BACnet Communication Interface for ReliaTel, BAS-SVP053, Voyager, Precedent, Odyssey - Water-source heat pump controller
Trane Symbio 400-B/500 Water-Source Heat Pump
Trane water-source heat pumps controlled by a Symbio 400-B or Symbio 500 programmable controller.
Also known as: Symbio 400-B, Symbio 400B, Symbio 500, Symbio WSHP, BAS-SVP061B-EN - Self-contained unit controller
Trane Symbio 500 Modular Self-Contained (SCWM)
Trane modular self-contained (SCWM) units controlled by a Symbio 500.
Also known as: Symbio 500, SCWM, Modular Self-Contained, BAS-PTS037 - Split system controller
Trane Symbio 700 Odyssey
Trane Odyssey split systems controlled by a Symbio 700.
Also known as: Symbio 700, Odyssey split system, BAS-PTS005 - Rooftop unit controller
Trane Symbio 700 Precedent / Axiom
Trane Precedent packaged rooftop units and Axiom rooftop water-source heat pumps with the Symbio 700 controller.
Also known as: Symbio 700, Symbio700, Precedent rooftop, Axiom rooftop WSHP, BAS-PTS001 - Air-cooled chiller controller
Trane Symbio 800 ACRB Small (UC800)
Trane ACRB Small air-cooled chillers whose Symbio 800 points list Trane tags '(UC800)'.
Also known as: ACRB, ACRB Small, ACRB UC800, Symbio 800 ACRB, BAS-PTS025 - Air-cooled chiller controller
Trane Symbio 800 ACSA (UC800)
Trane ACSA air-cooled chillers whose Symbio 800 points list Trane tags '(UC800)'.
Also known as: ACSA, ACSA UC800, Symbio 800 ACSA, BAS-PTS026 - Water-cooled centrifugal chiller controller
Trane Symbio 800 Agility (HDWA / HDDA)
Trane Agility water-cooled centrifugal chillers (model HDWA and HDDA per the model information point) with Symbio 800 controls.
Also known as: Agility, HDWA, HDDA, Agility water-cooled chiller, Symbio 800 Agility, BAS-PTS007 - Air-cooled chiller controller
Trane Symbio 800 Ascend ACR Series C
Trane Ascend model ACR Series C air-cooled chillers with Symbio 800 controls.
Also known as: Ascend ACR, ACR Series C, Ascend air-cooled chiller, Symbio 800 Ascend ACR, BAS-PTS021 - Air-cooled chiller controller
Trane Symbio 800 Ascend ACS / ACX
Trane Ascend model ACS and ACX air-cooled scroll chillers with Symbio 800 controls.
Also known as: Ascend ACS, Ascend ACX, Ascend air-cooled chiller, Symbio 800 Ascend, BAS-PTS011 - Centrifugal chiller controller
Trane Symbio 800 CenTraVac (Duplex)
Two-compressor (duplex) Trane CenTraVac water-cooled centrifugal chillers with Symbio 800 controls.
Also known as: CenTraVac Duplex, CDHH, CDHF, Symbio 800 CenTraVac, BAS-PTS009 - Centrifugal chiller controller
Trane Symbio 800 CenTraVac (Simplex)
Single-compressor (simplex) Trane CenTraVac water-cooled centrifugal chillers with Symbio 800 controls.
Also known as: CenTraVac, CVHE, CVHF, CVHH, Symbio 800 CenTraVac, BAS-PTS009 - Centrifugal chiller controller
Trane Symbio 800 CenTraVac Simplex (UC800)
Trane CenTraVac (CTV) simplex centrifugal chillers whose Symbio 800 points list Trane tags '(UC800)'.
Also known as: CenTraVac, CTV, CTV-Simplex, CenTraVac UC800, Symbio 800 CenTraVac, BAS-PTS029 - Air-cooled scroll chiller controller
Trane Symbio 800 CGAM
Trane CGAM air-cooled scroll chillers with Symbio 800 controls.
Also known as: CGAM, CGAM air-cooled chiller, Symbio 800 CGAM, BAS-PTS019 - Air-cooled scroll chiller controller
Trane Symbio 800 CGAM (CH530)
Trane CGAM air-cooled scroll chillers whose Symbio 800 points list Trane tags '(CH530)'.
Also known as: CGAM, CGAM CH530, CH530 CGAM, Symbio 800 CGAM, BAS-PTS027 - Water-cooled centrifugal chiller controller
Trane Symbio 800 HDWA (UC800)
Trane HDWA water-cooled chillers whose Symbio 800 points list Trane tags '(UC800)'.
Also known as: HDWA, Agility HDWA, HDWA UC800, Symbio 800 HDWA, BAS-PTS028 - Split system controller
Trane Symbio 800 IntelliCore Split System (RAUK)
Trane IntelliCore split systems (RAUK) controlled by a Symbio 800.
Also known as: IntelliCore, RAUK, IntelliCore split system, Symbio 800, BAS-PTS036 - Rooftop unit / air handler controller
Trane Symbio 800 IntelliPak
Trane IntelliPak large packaged rooftop units running the Symbio 800 controller.
Also known as: Symbio 800, IntelliPak rooftop, IntelliPak with Symbio 800, BAS-PTS003 - Air-cooled screw chiller controller
Trane Symbio 800 RTAC
Trane RTAC air-cooled helical-rotary chillers with Symbio 800 controls.
Also known as: RTAC, Series R RTAC, RTAC air-cooled chiller, BAS-PTS023 - Air-cooled screw chiller controller
Trane Symbio 800 RTAC (CH530)
Trane RTAC air-cooled helical-rotary chillers covered by Trane's 'RTAC (CH530)' Symbio 800 points list.
Also known as: RTAC, Series R RTAC, RTAC CH530, CH530, BAS-PTS031 - Air-cooled screw chiller controller
Trane Symbio 800 RTAC (UC800)
Trane RTAC air-cooled helical-rotary chillers covered by Trane's 'RTAC (UC800)' Symbio 800 points list.
Also known as: RTAC, Series R RTAC, RTAC UC800, UC800, BAS-PTS032 - Water-cooled screw chiller controller
Trane Symbio 800 RTHD (CH530)
Trane RTHD water-cooled helical-rotary chillers covered by Trane's 'RTHD (CH530)' Symbio 800 points list.
Also known as: RTHD, Series R RTHD, RTHD CH530, CH530, BAS-PTS033 - Water-cooled screw chiller controller
Trane Symbio 800 RTHD (UC800)
Trane RTHD water-cooled helical-rotary chillers covered by Trane's 'RTHD (UC800)' Symbio 800 points list.
Also known as: RTHD, Series R RTHD, RTHD UC800, UC800, BAS-PTS034 - Water-cooled screw chiller controller
Trane Symbio 800 RTWD (CH530)
Trane RTWD water-cooled helical-rotary chillers covered by Trane's 'RTWD (CH530)' Symbio 800 points list.
Also known as: RTWD, Series R RTWD, RTWD CH530, CH530, BAS-PTS035 - Water-cooled screw chiller controller
Trane Symbio 800 Series R RTHD
Trane Series R model RTHD water-cooled helical-rotary chillers with Symbio 800 controls.
Also known as: RTHD, Series R RTHD, RTHD water-cooled chiller, Symbio 800 RTHD, BAS-PTS015 - Water-cooled screw chiller controller
Trane Symbio 800 Series R RTWD
Trane Series R model RTWD water-cooled helical-rotary chillers with Symbio 800 controls.
Also known as: RTWD, Series R RTWD, Series R water-cooled chiller, BAS-PTS017 - Air-cooled screw chiller controller
Trane Symbio 800 Sintesis RTAF
Trane Sintesis model RTAF air-cooled helical-rotary chillers with Symbio 800 controls.
Also known as: Sintesis RTAF, RTAF, Sintesis air-cooled chiller, Symbio 800 Sintesis, BAS-PTS013
Source: Symbio 500 Integration Point List BACnet - Commercial Self-Contained (SWUD*) · BAS-PTS038B-EN · rev. 09/26/2025. Object names, instances and units are reproduced as published; descriptions are our own.