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Networked room thermostat · BACnet points list
Viconics VT7600 Series PIR-Ready Rooftop / Heat Pump Thermostats BACnet points list
Updated 28 October 2026
Viconics VT76xx thermostats control single- and two-stage rooftop units and heat pumps and join a BACnet MS/TP trunk through a plug-in communication module. One object list covers all models; several instances hold a different object on different models (for example heat pump balance points versus discharge air limits). The thermostats do not support COV, so the BMS must poll them.
This page lists 109 BACnet objects for the Viconics VT7600 Series PIR-Ready Rooftop / Heat Pump Thermostats — 67 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Viconics’s own free documentation, linked below.
- Manufacturer
- Viconics
- Model
- VT7600 Series PIR-Ready Rooftop / Heat Pump Thermostats
- Equipment
- Networked room thermostat
- Equipment type
- Thermostats, sensors & meters
- BACnet objects
- 109 (67 writable)
- Transport
- BACnet MS/TP
- Firmware
- Not stated
- Default device instance
- 76000 + MAC
- Also known as
- VT7600, VT7605, VT7607, VT7652, VT7656, VT7657, VT7606, VT76xx
BMS integration notes: Viconics VT7600 Series PIR-Ready Rooftop / Heat Pump Thermostats
Give each thermostat a MAC address from 0 to 127 (the factory 254 leaves BACnet off) and let it auto-baud. The BMS writes Occupancy Command (MV 12), the system mode for the unit type (MV 14 on rooftop units, MV 13 on heat pumps), Fan Mode (MV 15) and the setpoints, and reads Room Temperature (AV 7), Effective Occupancy (MV 34), the G/Y/W output status BIs and the alarms. Poll no faster than every 5 seconds, since there is no COV.
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 12 | Occupancy Command | BMS occupancy: local, occupied or unoccupied | Write |
| MV 14 | System Mode RTU | Off / auto / cool / heat (rooftop models) | Write |
| MV 13 | System Mode HP | Off / auto / cool / heat / emergency (heat pump models) | Write |
| MV 15 | Fan Mode | Fan mode: on / auto / smart | Write |
| AV 42 | Occupied Heat Setpoint | Occupied heating setpoint | Write |
| AV 43 | Occupied Cool Setpoint | Occupied cooling setpoint | Write |
| BI 25 | G Fan | Fan (G) output state | Read |
| MV 34 | Effective Occupancy | Actual occupancy state | Read |
| AV 7 | Room Temperature | Space temperature used for control | Write |
| BI 40 | Fan Lock Alarm | Fan lock alarm (1 = on) | Read |
Enable & remote start
There is no separate enable point. Occupancy Command (MV 12) selects local occupancy, occupied or unoccupied; the system mode (MV 14 or MV 13) and Fan Mode (MV 15) act directly.
Heartbeat & communication loss
No heartbeat point. If the thermostat goes offline, the room temperature, outdoor temperature and occupancy values written over the network are released.
Sensors & values from the BMS
Room Temperature (AV 7) can be written only after Room Temp Override (BV 8) is set to Override. Outdoor Temperature (AV 9) has its own override (BV 10) and is one of the global values the guide shows a BMS sending to all thermostats.
Network setup
- Factory MAC address is 254, where BACnet communication is off; set it to 0-127 to join the trunk.
- Baud rate auto-detects (9600, 19200, 38400, 76800) at power-up; after a network speed change the thermostat keeps the old rate for 10 minutes unless re-powered.
- Default device ID is 76000 + MAC; default device name is the model number plus the MAC. Both are writable.
- Vendor ID 140. Up to 64 Viconics devices per segment and 128 per network.
- The guide suggests a 10000 ms APDU timeout and 3 retries on the supervisory controller to stop devices dropping offline.
Watch out for
- No COV support: poll no faster than every 5 seconds and write from programs on change or in slow loops, not every scan.
- Rooftop and heat pump models use different system mode objects (MV 14 and MV 13); map the one that exists.
- The device has no Local_Time or Local_Date, so it does not claim time synchronization even though the network can set its clock.
- Viconics recommends removing the configuration objects (GRP 46, 58, 69, 72, 76, 81, 87, 94) from the BMS after setup to cut polling.
Viconics VT7600 Series PIR-Ready Rooftop / Heat Pump Thermostats 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 | |||||
|---|---|---|---|---|---|---|
| AVmin | 7 | Room Temperature | Room temperature; writable only when BV 8 = Override | °F | Write | |
| BV | 8 | Room Temp Override | Enables writing AV 7 from the network | Write | 0=Normal, 1=Override | |
| AV | 9 | Outdoor Temperature | Outdoor temperature; can be written from the BMS | °F | Write | |
| BV | 10 | Outdoor Temp Override | Write | 0=Normal, 1=Override | ||
| AV | 11 | Room Humidity | Room relative humidity (humidity models) | % | Read | |
| MVmin | 12 | Occupancy Command | Write | 1=Local Occupancy, 2=Occupied, 3=Unoccupied | ||
| BV | 13 | Room Humidity Override | Write | 0=Normal, 1=Override | ||
| MVmin | 13 | System Mode HP | System mode on heat pump models | Write | 1=Off, 2=Auto, 3=Cool, 4=Heat, 5=Emergency | |
| MVmin | 14 | System Mode RTU | System mode on rooftop unit models | Write | 1=Off, 2=Auto, 3=Cool, 4=Heat | |
| MVmin | 15 | Fan Mode | Default Smart | Write | 1=On, 2=Auto, 3=Smart | |
| AI | 16 | Supply Temp | Supply air temperature, if a sensor is fitted | °F | Read | |
| AV | 17 | Supply RH / Water Temp. | Supply RH (0-100 %) or water temperature (°F), by model | Read | ||
| MV | 18 | Keypad Lockout | Write | 1=Level 0, 2=Level 1, 3=Level 2 | ||
| Other | 19 | Control Output | Group object (bundle of related points) (printed GR 19) | Read | ||
| AV | 20 | PI Heating Demand | % | Read | ||
| AV | 21 | PI Cooling Demand | % | Read | ||
| AV | 22 | Economizer Output | Economizer models | % | Read | |
| AI | 23 | AI1 Value | Analog input 1, 0 to 10 VDC | V | Read | |
| Other | 23 | Controller Status | Group object (bundle of related points) | Read | ||
| BI | 24 | AUX | Auxiliary output status | Read | 0=Off, 1=On | |
| BImin | 25 | G Fan | Fan (G) output status | Read | 0=Off, 1=On | |
| BI | 26 | Y1 Cool | Cooling stage 1 (Y1) output | Read | 0=Off, 1=On | |
| BI | 27 | Y2 Cool | Cooling stage 2 (Y2) output | Read | 0=Off, 1=On | |
| BI | 28 | W1 Heat | Heating stage 1 (W1) output | Read | 0=Off, 1=On | |
| BI | 29 | W2 Heat | Heating stage 2 (W2) output | Read | 0=Off, 1=On | |
| BI | 30 | Reversing Valve | Reversing valve output (heat pump models) | Read | 0=Off, 1=On | |
| BI | 31 | DI 1 Status | Read | 0=Not Activated, 1=Activated | ||
| BI | 32 | DI 2 Status | Read | 0=Not Activated, 1=Activated | ||
| BI | 33 | Local Motion | PIR motion detected | Read | 0=No Motion, 1=Motion | |
| MVmin | 34 | Effective Occupancy | Read | 1=Occupied, 2=Unoccupied, 3=Temporary Occupied | ||
| AV | 35 | Analog Heat Output | Modulating heat output (some models) | % | Read | |
| Other | 35 | Controller Alarms | Group object (bundle of related points) | Read | ||
| BI | 36 | Frost Alarm | Read | 0=Off, 1=On | ||
| BI | 37 | Clock Alarm | Scheduling models | Read | 0=Off, 1=On | |
| BI | 38 | Filter Alarm | Read | 0=Off, 1=On | ||
| BI | 39 | Service Alarm | Read | 0=Off, 1=On | ||
| BImin | 40 | Fan Lock Alarm | Read | 0=Off, 1=On | ||
| Other | 41 | Temperature Setpoints | Group object (bundle of related points) | Read | ||
| AVmin | 42 | Occupied Heat Setpoint | Range 40 to 90 °F, default 72 °F. | °F | Write | |
| AVmin | 43 | Occupied Cool Setpoint | Range 54 to 100 °F, default 75 °F. | °F | Write | |
| AV | 44 | Unoccupied Heat Setpoint | Range 40 to 90 °F, default 62 °F. | °F | Write | |
| AV | 45 | Unoccupied Cool Setpoint | Range 54 to 100 °F, default 80 °F. | °F | Write | |
| AI | 46 | Fresh Air Level | Range 0 to 20000 cfm | cfm | Read | |
| Other | 46 | General Options 1 | Group object (bundle of related points) | Read | ||
| BV | 47 | Temperature Scale | Write | 0=°C, 1=°F | ||
| AV | 48 | Heating Setpoint Limit | Range 40 to 90 °F, default 90 °F. | °F | Write | |
| AV | 49 | Cooling Setpoint Limit | Range 54 to 100 °F, default 54 °F. | °F | Write | |
| AV | 50 | Heating Lockout Temperature | Range -15 to 120 °F, default 120 °F. | °F | Write | |
| AV | 51 | Cooling Lockout Temperature | Range -40 to 95 °F, default -40 °F. | °F | Write | |
| AV | 52 | Deadband | Range 2 to 4 °F, default 2 °F. | °F | Write | |
| MV | 53 | Heating CPH | Write | 1=3 CPH, 2=4 CPH, 3=5 CPH, 4=6 CPH, 5=7 CPH, 6=8 CPH | ||
| MV | 54 | Cooling CPH | Write | 1=3 CPH, 2=4 CPH | ||
| BV | 55 | Frost Protection | Write | 0=Off, 1=On | ||
| BV | 56 | Aux Contact | Write | 0=N.O., 1=N.C. | ||
| BV | 57 | Menu Scroll | Write | 0=No Scroll, 1=Scroll Active | ||
| BV | 58 | Supply Heat Lockout Status | Listed as BI 58 in the state table | Read | 0=Off, 1=On | |
| Other | 58 | General Options 2 | Group object (bundle of related points) | Read | ||
| AV | 59 | Password Value | Range 0 to 1000 | Write | ||
| AV | 60 | Power-up Delay | Range 10 to 120 s, default 10 s. | s | Write | |
| MV | 61 | Temporary Occ. Time | Default 3 hours | Write | 1=0 hour ... 13=12 hours (1-hour steps) | |
| BV | 62 | Fan Control | Write | 0=Off, 1=On | ||
| MV | 63 | Anticycle | Write | 1=0 minute, 2=1 minute, 3=2 minutes, 4=3 minutes, 5=4 minutes, 6=5 minutes | ||
| BV | 64 | Fan Purge Delay | Write | 0=Off, 1=On | ||
| MV | 65 | DI 1 Configuration | Write | 1=None, 2=RemNSB, 3=RemOVR, 4=Filter, 5=Service, 6=Fan lock | ||
| MV | 66 | DI 2 Configuration | Write | 1=None, 2=RemNSB, 3=RemOVR, 4=Filter, 5=Service, 6=Fan lock | ||
| MV | 67 | Proportional Band | Write | 1=2 °F, 2=3 °F, 3=4 °F, 4=5 °F, 5=6 °F, 6=7 °F, 7=8 °F | ||
| AV | 68 | Unoccupied Time | Range 0.5 to 24 h, default 0.5 h. | h | Write | |
| AI | 69 | CO2 Level | Range 0 to 2000 ppm | ppm | Read | |
| Other | 69 | With schedule Model Configuration Options | Group object (bundle of related points) | Read | ||
| BV | 70 | Progressive Recovery | Scheduling models | Write | 0=Off, 1=Active | |
| MV | 71 | Event Display | Scheduling models | Write | 1=2 Events, 2=4 Events | |
| Other | 72 | Stages Configuration Options | Group object (bundle of related points) | Read | ||
| BI | 72 | Discharge Air Alarm | Read | 0=Off, 1=On | ||
| MV | 73 | Heating Stages | Write | 1=Analog Heat, 2=1 Stage, 3=2 Stages | ||
| MV | 74 | Cooling Stages | Write | 1=1 Stage, 2=2 Stages | ||
| MV | 75 | Heatpump Stages | Write | 1=1 Stage, 2=2 Stages | ||
| Other | 76 | Economizer Model Configuration Options | Group object (bundle of related points) | Read | ||
| AV | 76 | Fresh Air Max Range | Range 0 to 20000 cfm | cfm | Write | |
| AV | 77 | Economizer Changeover Setpoint | Range 14 to 70 °F, default 55 °F. | °F | Write | |
| AV | 78 | Economizer Minimum Position | Range 0 to 100 %, default 0 %. | % | Write | |
| BV | 79 | Mechanical Cooling Enabled | Write | 0=Off, 1=On | ||
| AV | 80 | Mixed Air Setpoint | Range 50 to 90 °F, default 55 °F. | °F | Write | |
| Other | 81 | Heatpump Model Configuration Options | Group object (bundle of related points) | Read | ||
| AV | 81 | Economizer Max Position | Range 0 to 100 % | % | Write | |
| AV | 82 | High Balance Point / Discharge High Limit Setpoint | Balance point 34-90 °F, or discharge high limit 70-150 °F, by model | °F | Write | |
| AV | 83 | Low Balance Point / Discharge Low Limit Setpoint | Balance point -40 to 30 °F, or discharge low limit 35-65 °F, by model | °F | Write | |
| BV | 84 | Comfort Mode | Write | 0=Comfort, 1=Economy | ||
| BI | 84 | High CO2 Alarm | Write | 0=Off, 1=On | ||
| BV | 85 | Reversing Valve Configuration | Whether the reversing valve is energized in heating or cooling | Write | 0=Normally Cool Energized in Heating, 1=Normally Heat Energized in Cooling | |
| BV | 86 | Compressor Interlock | Write | 0=Off, 1=On | ||
| BI | 86 | Fresh Air Alarm | Read | 0=Off, 1=On | ||
| Other | 87 | Dehumidification Model Configuration Options | Group object (bundle of related points) | Read | ||
| BV | 88 | RH Display | Write | 0=Disabled, 1=Enabled | ||
| AV | 89 | Dehumidification RH Setpoint | Range 30-95 % or 20-100 % by model, default 50 % | % | Write | |
| AV | 90 | Dehumidification Hysterisys | Range 2 to 20 %, default 5 %. | % | Write | |
| AV | 91 | Dehumidification Low OA Lockout | Range -40 to 122 °F, default 32 °F. | °F | Write | |
| BV | 92 | Dehumidification Lockout Functions | Write | 0=Disabled, 1=Enabled | ||
| MV | 92 | Dehumidification Lockout Functions | Write | 1=Disabled, 2=Restricted, 3=Enabled | ||
| BI | 93 | Dehumidification Output Status | Read | 0=Off, 1=On | ||
| Other | 94 | Humidification Model Configuration Options | Group object (bundle of related points) | Read | ||
| BV | 94 | AI1 Config | Write | 0=None, 1=CO2 | ||
| AV | 95 | Humidification RH Setpoint / Minimum Supply Heat Setpoint | RH setpoint 10-90 % or minimum supply heat 50-72 °F, by model | Write | ||
| AV | 96 | Eff Reset Humidification RH Spt / Supply Heat Lockout Temperature | Effective RH setpoint (read-only) or supply heat lockout (°F), by model | Write | ||
| AV | 97 | Humidification High Limit Spt / Supply PI Heat Demand | RH high limit 50-90 % or supply heat demand (read-only, %), by model | Write | ||
| AV | 98 | Low RH Setpoint / Minimum Fresh Air | Low RH setpoint 10-90 % or minimum fresh air (cfm), by model | Write | ||
| AV | 99 | Low Temp Reset RH Setpoint / Maximum Fresh Air | Reset outdoor temp -40 to 15 °F or maximum fresh air (cfm), by model | Write | ||
| AV | 100 | High Temp Reset RH Setpoint / Minimum CO2 Level | Reset outdoor temp 20-55 °F or minimum CO2 0-2000 ppm, by model | Write | ||
| AV | 101 | Humidifier Output / Maximum CO2 Level | Humidifier output (read-only, %) or maximum CO2 (ppm), by model | Write | ||
| SCH | 102 | Local Schedule | Internal weekly schedule (scheduling models) | Write |
No points match these filters.
Integration notes
- Viconics is a Schneider Electric brand; the guide is published on veris.com.
- Object availability varies by model. The guide marks it in per-model check-mark columns, which are not reproduced here.
- Some instances hold different objects on different models (AV 17, AV 82, AV 83, AV 95-101); both names are shown, joined with ' / '.
- Supply Heat Lockout Status is BV 58 in the object table but BI 58 in the state table; BV 58 is used.
- Room Humidity (AV 11) and the PI demand, economizer and humidifier outputs are read-only per the PICS notes, although the object table shows R,W for AV 11.
- GRP group objects (bundles of related points) are listed as type Other.
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 VT7600 Series PIR-Ready Rooftop / Heat Pump Thermostats 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 Viconics VT7600 Series PIR-Ready Rooftop / Heat Pump Thermostats
How many BACnet points does the Viconics VT7600 Series PIR-Ready Rooftop / Heat Pump Thermostats have?
This list has 109 BACnet objects: 4 analog inputs, 37 analog values, 19 binary inputs, 18 binary values, 1 schedule, 18 multi-state values, 12 others. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Viconics VT7600 Series PIR-Ready Rooftop / Heat Pump Thermostats BACnet points are writable?
67 of the 109 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 Viconics VT7600 Series PIR-Ready Rooftop / Heat Pump Thermostats BACnet documentation?
The source is PIR Ready VT76xx Series BACnet Integration Manual (028-6015 R2 (ITG-VT76xx-PIR-BAC-E02)), revision 2011-01-23, published free by Viconics at https://www.veris.com/ASSETS/DOCUMENTS/CMS/EN/Static_Documents/DownloadCenter/028-6015-R2-ITG-VT76xx-PIR-BAC-E02.pdf.
What are the minimum BACnet points to integrate the Viconics VT7600 Series PIR-Ready Rooftop / Heat Pump Thermostats?
Start with MV 12 Occupancy Command (BMS occupancy: local, occupied or unoccupied); MV 14 System Mode RTU (Off / auto / cool / heat (rooftop models)); MV 13 System Mode HP (Off / auto / cool / heat / emergency (heat pump models)); MV 15 Fan Mode (Fan mode: on / auto / smart); AV 42 Occupied Heat Setpoint (Occupied heating setpoint); AV 43 Occupied Cool Setpoint (Occupied cooling setpoint); BI 25 G Fan (Fan (G) output state); MV 34 Effective Occupancy (Actual occupancy state); AV 7 Room Temperature (Space temperature used for control); BI 40 Fan Lock Alarm (Fan lock alarm (1 = on)).
How do I enable BMS control of the Viconics VT7600 Series PIR-Ready Rooftop / Heat Pump Thermostats?
There is no separate enable point. Occupancy Command (MV 12) selects local occupancy, occupied or unoccupied; the system mode (MV 14 or MV 13) and Fan Mode (MV 15) act directly.
Does the Viconics VT7600 Series PIR-Ready Rooftop / Heat Pump Thermostats need a BACnet heartbeat or have a communication timeout?
No heartbeat point. If the thermostat goes offline, the room temperature, outdoor temperature and occupancy values written over the network are released.
Can the BMS supply sensor values to the Viconics VT7600 Series PIR-Ready Rooftop / Heat Pump Thermostats?
Room Temperature (AV 7) can be written only after Room Temp Override (BV 8) is set to Override. Outdoor Temperature (AV 9) has its own override (BV 10) and is one of the global values the guide shows a BMS sending to all thermostats.
How do I check these points on the real VT7600 Series PIR-Ready Rooftop / Heat Pump Thermostats?
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 Viconics BACnet points lists
- Networked room controller (thermostat)
Viconics TRCVT 3.0 Room Controller
Viconics TRC room controllers running firmware 3.0: TRC3500 models for fan coils and TRC6500 models for packaged rooftop units and heat pumps, in wired and wireless versions.
Also known as: TRCVT, TRC3500, TRC6500, TRCn500nnnn-VC, Viconics Room Controller - Networked room thermostat
Viconics VT7200 / VT7300 Series PIR-Ready Thermostats
Viconics VT7200 zoning thermostats and VT73xx / VTR73xx fan coil and zoning thermostats (24 Vac, PIR-ready) with the BACnet MS/TP communication module.
Also known as: VT7200, VT7300, VT7305, VT7350, VT7355, VTR7300, VTR7305, VTR7350, VTR7355, VT72xx, VT73xx - Fan coil unit controller (room thermostat)
Viconics VT8350 Fan Coil and Zone Controller
Viconics VT8000-series VT8350 room controllers for low-voltage (24 Vac) 2-pipe and 4-pipe fan coil units and zone control.
Also known as: VT8350, Viconics VT8350, VT8000 VT8350, Schneider Electric VT8350 - Rooftop unit controller (room thermostat, conventional or heat-pump RTUs)
Viconics VT8650 Rooftop Unit and Heat Pump Controller
Viconics VT8000-series VT8650 room controllers for packaged rooftop units and heat pumps (up to 2 heating and 2 cooling stages), with economizer and indoor air quality options.
Also known as: VT8650, Viconics VT8650, VT8000 VT8650, Schneider Electric VT8650 - Fan coil unit controller (room thermostat)
Viconics VTR8350 Line Voltage Fan Coil Controller
Viconics VT8000-series VTR8350 room controllers for line-voltage fan coil units (used with a VC3000-series relay pack).
Also known as: VTR8350, Viconics VTR8350, VT8000 VTR8350, Schneider Electric VTR8350 - VAV zone controller (room thermostat)
Viconics VZ8250 VAV Zone Controller
Viconics VT8000-series VZ8250 room controllers for pressure-dependent or pressure-independent VAV boxes, with optional fan, duct heater and baseboard reheat.
Also known as: VZ8250, Viconics VZ8250, VT8000 VZ8250, Schneider Electric VZ8250
Source: PIR Ready VT76xx Series BACnet Integration Manual · 028-6015 R2 (ITG-VT76xx-PIR-BAC-E02) · rev. 2011-01-23. Object names, instances and units are reproduced as published; descriptions are our own.