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Water-source heat pump controller · BACnet points list
WaterFurnace Envision Water-to-Air Heat Pump, 1-6 Ton BACnet points list
Updated 28 October 2026
BACnet variables for WaterFurnace Envision 1-6 ton water-to-air heat pumps. The BAS can command occupancy and let the controller hold its occupied/unoccupied setpoints, or send G, Y1, Y2 and O calls directly. Unit statuses are binary inputs in this version, and ECM fan speeds, passive dehumidification, sensor type and fan cycling are set through writable values.
This page lists 55 BACnet objects for the WaterFurnace Envision Water-to-Air Heat Pump, 1-6 Ton — 33 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from WaterFurnace’s own free documentation, linked below.
- Manufacturer
- WaterFurnace
- Model
- Envision Water-to-Air Heat Pump, 1-6 Ton
- Equipment
- Water-source heat pump controller
- Equipment type
- Heat pumps
- BACnet objects
- 55 (33 writable)
- Transport
- —
- Firmware
- Not stated
- Also known as
- Envision BACnet Variables, Envision BACnet Variables with BI, Envision 1-6 Ton
- Source document
- Envision BACnet Variables
BMS integration notes: WaterFurnace Envision Water-to-Air Heat Pump, 1-6 Ton
The BAS can run this heat pump in two ways: command occupancy (MO1) and let the controller hold its occupied/unoccupied setpoints, or act as the thermostat and send fan, Y1, Y2 and O calls directly (MO2-MO5). Space temperature can be overridden from the network on AO4, and MO6 forces an emergency shutdown.
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 |
|---|---|---|---|
| MO 1 | Occupancy Command | Occupied/unoccupied/bypass command | Write |
| MO 6 | Emergency Overide | Network emergency shutdown | Write |
| AV 1 | Occupied Cool | Occupied cooling setpoint (write rarely) | Write |
| AV 3 | Occupied Heat | Occupied heating setpoint (write rarely) | Write |
| MO 7 | Alarm Reset | Reset manual-reset alarms | Write |
| MI 2 | Mode Status | Auto or shutdown status | Read |
| BI 2 | Comp Cmd Status | Compressor commanded on/off | Read |
| AI 1 | Space Temp | Space sensor temperature | Read |
| AI 2 | Discharge Air Temp | Discharge (supply) air temperature | Read |
| AI 9 | Alarms Enumerated | Active alarm code | Read |
Enable & remote start
The sheet has no separate BAS-enable point. MO6 Emergency Overide puts the unit in shutdown (5) or back to normal (1). MO2-MO5 let the BAS send fan, compressor and reversing-valve calls directly.
Sensors & values from the BMS
AO4 Space temp Ovrd sends the space temperature from the network and supersedes the wired sensor. It is volatile and reverts to uncommanded after a power outage.
Network setup
- Set MV5 SensorSel to match the zone sensor (1=TAXXJ02, 2=TAXXA01).
Watch out for
- AO points are volatile and revert to uncommanded after a power outage, so rewrite them after power is restored.
- To set ECM fan speeds, select the switch with MV1-MV3 (write 2), then set the speed in AV11-AV13.
- Alarm Reset only works once the alarm condition has cleared; hold it On for 20 seconds, then return it to Off.
- Treat the AV/MV setpoints as configuration and avoid cyclic writes; on other FX10 sheets these are flash-backed.
WaterFurnace Envision Water-to-Air Heat Pump, 1-6 Ton 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 | |||||
|---|---|---|---|---|---|---|
| AImin | 1 | Space Temp | Space temperature | Read | ||
| AImin | 2 | Discharge Air Temp | Discharge air sensor (field mounted unless factory special) | Read | ||
| AI | 3 | Effective Clg Setpt | Active cooling setpoint | Read | ||
| AI | 4 | Effective Htg Setpt | Active heating setpoint | Read | ||
| AI | 5 | Space Humidity | Space humidity | Read | ||
| AI | 6 | Water Coil Temp | Coldest refrigerant temperature, for freeze detection | Read | ||
| AI | 7 | Low Temp Limit | Water coil low limit that shuts the unit down | Read | ||
| AI | 8 | ECM Cmd Output | Commanded ECM blower speed | % | Read | |
| AImin | 9 | Alarms Enumerated | Active alarm code | Read | 0=No alarms; 1=Condensate; 2=Compressor Hi Discharge Pressure; 3=Compressor Low Suction Pressure; 4=Freeze Protection; 8=Faulty Freeze Sensor; 9=Loss of Charge | |
| AI | 10 | AO2 Value | Output value of AO2 | % | Read | |
| AO | 1 | Space Setpoint | Midpoint setpoint; moves heating and cooling setpoints together | Write | ||
| AO | 2 | ECM Fan Ovrd | Network control of ECM blower speed | Write | ||
| AO | 3 | AO2 Override | Network control of analog output 2 | Write | ||
| AO | 4 | Space temp Ovrd | Network space temperature; supersedes the wired sensor | Write | ||
| AVmin | 1 | Occupied Cool | Occupied cooling setpoint | Write | ||
| AV | 2 | Unoccupied Cool | Unoccupied cooling setpoint | Write | ||
| AVmin | 3 | Occupied Heat | Occupied heating setpoint | Write | ||
| AV | 4 | Unoccupied Heat | Unoccupied heating setpoint | Write | ||
| AV | 5 | Temporary Occ Time | Duration of the zone-sensor temporary occupancy timer | Write | ||
| AV | 6 | Remote Setpt Span | Range of the zone sensor setpoint knob | Write | ||
| AV | 7 | Remote Setpt Bias | Bias of the remote setpoint adjust range | Write | ||
| AV | 8 | Space Temp Offset | Calibration offset added to Space Temp | Write | ||
| AV | 9 | Dehumidify Setpt | Humidity that starts passive dehumidification | Write | ||
| AV | 10 | Low Temp Limit Adj | Water coil low temperature shutdown limit | Write | ||
| AV | 11 | Fan Only Speed | Fan speed for ECM switch 1 | Write | ||
| AV | 12 | Medium Fan | Fan speed for ECM switch 2 | Write | ||
| AV | 13 | High Fan | Fan speed for ECM switch 3 | Write | ||
| BI | 1 | Fan Cmd Status | Commanded fan output | Read | Inactive=Off; Active=On | |
| BImin | 2 | Comp Cmd Status | Commanded compressor output | Read | Inactive=Off; Active=On | |
| BI | 3 | Comp Hi Capacity Cmd | Commanded high-capacity compressor control | Read | Inactive=Off; Active=On | |
| BI | 4 | Reversing Valve | Commanded reversing valve position | Read | Inactive=Heating; Active=Cooling | |
| BI | 5 | Accessory 1 Output | X1 (accessory 1) output state | Read | Inactive=Off; Active=On | |
| BI | 6 | Accessory 2 Output | X2 (accessory 2) output state | Read | Inactive=Off; Active=On | |
| BI | 7 | Dirty Filter BI-12 | Dirty filter contact on BI-12 | Read | Inactive=Off; Active=On | |
| BI | 8 | Alarm Status | In alarm / out of alarm | Read | Inactive=Off; Active=On | |
| BI | 9 | BO5 Output | BO5 (electric heat) output state | Read | Inactive=Off; Active=On | |
| BI | 10 | BO9 Output | BO9 output state | Read | Inactive=Off; Active=On | |
| MI | 1 | Effective Occupancy | Current occupancy status | Read | 1=Occupied; 2=Unoccupied; 3=Bypass; 255=Invalid | |
| MImin | 2 | Mode Status | Auto or shutdown | Read | 1=Auto; 7=Shutdown | |
| MOmin | 1 | Occupancy Command | Network occupancy command | Write | 1=Occupied; 2=Unoccupied; 3=Bypass; 255=Invalid | |
| MO | 2 | Fan Command (G) | Network fan call (thermostat G) | Write | ||
| MO | 3 | Compressor Cmd (Y1) | Network compressor call (thermostat Y1) | Write | ||
| MO | 4 | Compressor Cmd (Y2) | Network compressor call (thermostat Y2) | Write | ||
| MO | 5 | Reversing Vlv Cmd (O) | Network reversing valve call (thermostat O) | Write | ||
| MOmin | 6 | Emergency Overide | Rapid network shutdown (fire etc.) | Write | 1=Normal; 5=Shutdown | |
| MOmin | 7 | Alarm Reset | Reset lockout alarms: On for 20 s, then Off | Write | 1=Off; 2=On | |
| MO | 8 | Emergency Heat BO5 | Network emergency heat command; can stop auto emergency heat | Write | ||
| MO | 9 | BO9 | Network control of spare output BO9 | Write | 1=Off; 2=On | |
| MO | 10 | Dehum Cmd | Dehumidify command (no description in the sheet) | Write | ||
| MV | 1 | SW1 | ECM switch 1 selection | Write | 2=Selected | |
| MV | 2 | SW2 | ECM switch 2 selection | Write | 2=Selected | |
| MV | 3 | SW3 | ECM switch 3 selection | Write | 2=Selected | |
| MV | 4 | DehumEnaDis | Enable passive dehumidification | Write | 1=Disable; 2=Enable | |
| MV | 5 | SensorSel | Zone sensor model selection | Write | 1=TAXXJ02; 2=TAXXA01 | |
| MV | 6 | FanCycling | Continuous or cycled fan | Write | 1=Continuous; 2=Cycled |
No points match these filters.
Integration notes
- The sheet labels the multistate values 'Type 15'; standard BACnet uses type 19 for Multistate Value, so they are listed here as MV.
- The sheet does not name the controller or say which points are flash-backed; WaterFurnace's FX10 sheets for similar units store AV/MV points in flash.
- MO2-MO5 and MO8 have no state texts in the sheet; MO10 Dehum Cmd has no description.
- No engineering units are printed in the source; temperatures are presumably degrees F.
- Alarm codes 5-7 are not listed.
- The sheet does not state the BACnet transport.
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 Envision Water-to-Air Heat Pump, 1-6 Ton 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 WaterFurnace Envision Water-to-Air Heat Pump, 1-6 Ton
How many BACnet points does the WaterFurnace Envision Water-to-Air Heat Pump, 1-6 Ton have?
This list has 55 BACnet objects: 10 analog inputs, 4 analog outputs, 13 analog values, 10 binary inputs, 2 multi-state inputs, 10 multi-state outputs, 6 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which WaterFurnace Envision Water-to-Air Heat Pump, 1-6 Ton BACnet points are writable?
33 of the 55 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 WaterFurnace Envision Water-to-Air Heat Pump, 1-6 Ton BACnet documentation?
The source is Envision BACnet Variables, published free by WaterFurnace at https://www.waterfurnace.com/downloads/ddc/BACnet-Resources/BACnet-points-pdfs/Envision-BACnet-Variables-with-BI-1-6-Ton.pdf.
What are the minimum BACnet points to integrate the WaterFurnace Envision Water-to-Air Heat Pump, 1-6 Ton?
Start with MO 1 Occupancy Command (Occupied/unoccupied/bypass command); MO 6 Emergency Overide (Network emergency shutdown); AV 1 Occupied Cool (Occupied cooling setpoint (write rarely)); AV 3 Occupied Heat (Occupied heating setpoint (write rarely)); MO 7 Alarm Reset (Reset manual-reset alarms); MI 2 Mode Status (Auto or shutdown status); BI 2 Comp Cmd Status (Compressor commanded on/off); AI 1 Space Temp (Space sensor temperature); AI 2 Discharge Air Temp (Discharge (supply) air temperature); AI 9 Alarms Enumerated (Active alarm code).
How do I enable BMS control of the WaterFurnace Envision Water-to-Air Heat Pump, 1-6 Ton?
The sheet has no separate BAS-enable point. MO6 Emergency Overide puts the unit in shutdown (5) or back to normal (1). MO2-MO5 let the BAS send fan, compressor and reversing-valve calls directly.
Can the BMS supply sensor values to the WaterFurnace Envision Water-to-Air Heat Pump, 1-6 Ton?
AO4 Space temp Ovrd sends the space temperature from the network and supersedes the wired sensor. It is volatile and reverts to uncommanded after a power outage.
How do I check these points on the real Envision Water-to-Air Heat Pump, 1-6 Ton?
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 WaterFurnace BACnet points lists
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WaterFurnace dual-compressor water-source rooftop units with an economizer, Aurora controls and the Aurora UPC.
Also known as: PL1250EW, Aurora UPC rooftop economizer, Aurora Universal Protocol Converter - Water-source heat pump controller
WaterFurnace Aurora UPC, Dual Compressor Water-Source Heat Pump
WaterFurnace dual-compressor water-to-air heat pumps with two Aurora Base Controllers (ABC A and B) and the Aurora UPC.
Also known as: PL1500EW, Aurora Universal Protocol Converter, Aurora UPC dual compressor - Rooftop unit controller (water-source, with economizer)
WaterFurnace Aurora UPC, Single Compressor Rooftop Unit with Economizer
WaterFurnace single-compressor water-source rooftop units with an economizer, Aurora controls and the Aurora UPC.
Also known as: PL1250EW, Aurora UPC rooftop economizer, Aurora Universal Protocol Converter - Water-source heat pump controller
WaterFurnace Aurora UPC, Single Compressor Water-Source Heat Pump
WaterFurnace single-compressor water-to-air heat pumps with the Aurora controls and the Aurora UPC protocol converter.
Also known as: AG1569EW, Aurora Universal Protocol Converter, Aurora UPC, UPCSWASTD01-01 - Water-source heat pump controller
WaterFurnace Aurora UPC, Variable Speed Water-Source Heat Pump
WaterFurnace variable speed water-to-air heat pumps with Aurora controls and the Aurora UPC.
Also known as: PL1700EW, Aurora Universal Protocol Converter, Aurora UPC variable speed - Water-source heat pump controller
WaterFurnace Dual Compressor Water-to-Air Heat Pump (FX10)
WaterFurnace commercial dual-compressor water-to-air heat pumps fitted with the FX10 DDC controller.
Also known as: PRODCWA-05, PRODCWA, WaterFurnace FX10 - Water-to-water heat pump controller
WaterFurnace Envision Single Compressor Water-to-Water Heat Pump (FX10)
WaterFurnace Envision single-compressor water-to-water heat pumps with the FX10 DDC controller.
Also known as: PROSSWWE-01, PROSSWWE, Envision Water-to-Water, WaterFurnace FX10 - Water-to-water heat pump / reversible chiller controller
WaterFurnace Reversible Chiller Water-to-Water Heat Pump (FX10)
WaterFurnace dual-compressor reversible chiller (water-to-water) heat pumps with the FX10 controller.
Also known as: PRODCWWE-06B, PRODCWWE-07B, PRODCWWE-08B, PRODCWWE - Water-source heat pump controller
WaterFurnace Single Compressor Water-to-Air Heat Pump (FX10)
WaterFurnace single-compressor water-to-air heat pumps without hot gas reheat, fitted with the FX10 DDC controller.
Also known as: PROFXENV-00, PROFXENV, Envision FX10, WaterFurnace FX10 - Water-source heat pump controller
WaterFurnace Single Compressor Water-to-Air Heat Pump with Hot Gas Reheat (FX10)
WaterFurnace single-compressor water-to-air heat pumps with hot gas reheat and the FX10 DDC controller.
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WaterFurnace Versatec Dual Compressor Water-to-Water Heat Pump (FX10)
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Also known as: PRODCWW-02, PRODCWW, Versatec Dual Compressor, WaterFurnace FX10 - Water-to-water heat pump controller
WaterFurnace Versatec Single Compressor Water-to-Water Heat Pump (FX10)
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Source: Envision BACnet Variables. Object names, instances and units are reproduced as published; descriptions are our own.