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Water-to-water heat pump controller · BACnet points list
WaterFurnace Envision Single Compressor Water-to-Water Heat Pump (FX10) BACnet points list
Updated 28 October 2026
BACnet objects for WaterFurnace's single-compressor Envision water-to-water heat pump on the FX10 controller. The BAS sends the compressor (Y1) and reversing valve calls and can shut the unit down or reset lockouts. Statuses (compressor, valve, accessory outputs, flow switches, alarm) are multistate inputs, and AI14 gives an alarm code.
This page lists 24 BACnet objects for the WaterFurnace Envision Single Compressor Water-to-Water Heat Pump (FX10) — 4 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 Single Compressor Water-to-Water Heat Pump (FX10)
- Equipment
- Water-to-water heat pump controller
- Equipment type
- Heat pumps
- BACnet objects
- 24 (4 writable)
- Transport
- —
- Firmware
- Not stated
- Also known as
- PROSSWWE-01, PROSSWWE, Envision Water-to-Water, WaterFurnace FX10
BMS integration notes: WaterFurnace Envision Single Compressor Water-to-Water Heat Pump (FX10)
The BAS stages this unit directly with MO1 (compressor Y1 call) and MO2 (reversing valve). MO3 gives a network emergency shutdown and MO5 resets lockouts. Supervise it with the load water temperatures, MI1 mode and the AI14 alarm code.
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 | Compressor Enable | Compressor call (Y1) | Write |
| MO 2 | Valve Enable | Heating/cooling selection | Write |
| MO 3 | Emerg Override | Network emergency shutdown | Write |
| MO 5 | Alarm Reset | Reset lockout alarms | Write |
| MI 1 | Mode of Operation | Auto or shutdown status | Read |
| MI 2 | Comp Cmd Status | Compressor commanded on/off | Read |
| AI 3 | Enter Load Temp | Entering load water temperature | Read |
| AI 4 | Leave Load temp | Leaving load water temperature | Read |
| AI 14 | Alarms Enumerated | Active alarm code | Read |
Enable & remote start
There is no internal temperature control or enable point: the unit runs only on external compressor (Y1) and reversing valve (O) calls, sent either at the terminal board or over the network. Emergency shutdown comes from MO3 Emerg Override (5=Shutdown) or a closed contact on BI-2.
Network setup
- Freeze limits are 30 F with the BI-4/BI-5 jumpers installed and 15 F with them removed.
Watch out for
- Output points (AO/MO) are volatile and go back to uncommanded after a power cycle, so rewrite them after power is restored.
- A Y1 call turns on X1 first; the compressor starts after a fixed 90-second delay and then runs at least 2 minutes.
- Three faults during one heating or cooling call put the unit in lockout until reset by power cycle or MO5.
- After power-up or leaving emergency shutdown, outputs wait a random 1-120 second start delay.
- MO2 and MI3 list opposite state orders for heating and cooling; verify the valve direction on site.
WaterFurnace Envision Single Compressor Water-to-Water Heat Pump (FX10) 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 | Source Frz | Refrigerant temp entering source heat exchanger | Read | ||
| AI | 2 | Load Frz | Refrigerant temp entering load heat exchanger | Read | ||
| AImin | 3 | Enter Load Temp | Entering load water temperature | Read | ||
| AImin | 4 | Leave Load temp | Leaving load water temperature | Read | ||
| AI | 5 | Enter Source Temp | Entering source water temperature | Read | ||
| AI | 6 | Leave Source Temp | Leaving source water temperature | Read | ||
| AI | 7 | Source Frz Setpt | Source heat exchanger freeze limit | Read | ||
| AI | 8 | Load Frz Setpt | Load heat exchanger freeze limit | Read | ||
| AImin | 14 | Alarms Enumerated | Active alarm code | Read | 0=No alarms; 1=Load Flow Switch; 2=Compressor Low Suction Pressure; 3=Source Low Temp; 4=Load Low Temp; 5=Source Flow Switch; 6=Hi Pressure; 7=Bad Sensor Source Low Limit; 8=Bad Sensor Load Low Limit; 9=Loss of Charge; 10=High Limit Shutdown | |
| MImin | 1 | Mode of Operation | Current operating status | Read | 1=Auto; 7=Shutdown | |
| MImin | 2 | Comp Cmd Status | Commanded compressor state | Read | 1=Off; 2=On | |
| MI | 3 | Rev Vlv Status | Commanded reversing valve position | Read | 1=Heating; 2=Cooling | |
| MI | 4 | LoadPmpStatus | Accessory 1 output state | Read | 1=Off; 2=On | |
| MI | 5 | SrcPmpStatus | Accessory 2 output state | Read | 1=Off; 2=On | |
| MI | 6 | Alarm Status | Alarm output state | Read | 1=Off; 2=On | |
| MI | 7 | Comp Status Prove | Compressor proving input (optional, field mounted) | Read | 1=Off; 2=On | |
| MI | 8 | BI9 Status | BI9 contact state | Read | 1=Open; 2=Closed | |
| MI | 9 | Load Flow Status | Load flow switch | Read | 1=Off; 2=On | |
| MI | 10 | Src Flow Status | Source flow switch | Read | 1=Off; 2=On | |
| MI | 11 | BI6 Status | BI6 contact state | Read | 1=Open; 2=Closed | |
| MOmin | 1 | Compressor Enable | Network compressor call (thermostat Y1) | Write | 1=Off; 2=On | |
| MOmin | 2 | Valve Enable | Network reversing valve call | Write | 1=Cooling; 2=Heating | |
| MOmin | 3 | Emerg Override | Network emergency shutdown | Write | 1=Normal; 5=Shutdown | |
| MOmin | 5 | Alarm Reset | Reset lockout alarms: change from 1 to 2 | Write |
No points match these filters.
Integration notes
- Output-type points are volatile and fall back to uncommanded after a power cycle; unlimited writes.
- No engineering units are printed in the source; temperatures are presumably degrees F.
- Instance numbers have gaps as printed: AI jumps from 8 to 14 and MO4 is not listed.
- MI4 LoadPmpStatus and MI5 SrcPmpStatus are described as the accessory 1 and 2 outputs.
- MO2 Valve Enable is listed as 1=Cooling, 2=Heating but MI3 Rev Vlv Status as 1=Heating, 2=Cooling; confirm on site.
- 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 Single Compressor Water-to-Water Heat Pump (FX10) 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 Single Compressor Water-to-Water Heat Pump (FX10)
How many BACnet points does the WaterFurnace Envision Single Compressor Water-to-Water Heat Pump (FX10) have?
This list has 24 BACnet objects: 9 analog inputs, 11 multi-state inputs, 4 multi-state outputs. The exact set on a given unit depends on its firmware, installed options and configuration.
Which WaterFurnace Envision Single Compressor Water-to-Water Heat Pump (FX10) BACnet points are writable?
4 of the 24 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 Single Compressor Water-to-Water Heat Pump (FX10) BACnet documentation?
The source is BACnet Points List for Single Compressor Water to Water (PROSSWWE-01), published free by WaterFurnace at https://www.waterfurnace.com/downloads/ddc/BACnet-Resources/BACnet-points-pdfs/PROSSWWE-01.pdf.
What are the minimum BACnet points to integrate the WaterFurnace Envision Single Compressor Water-to-Water Heat Pump (FX10)?
Start with MO 1 Compressor Enable (Compressor call (Y1)); MO 2 Valve Enable (Heating/cooling selection); MO 3 Emerg Override (Network emergency shutdown); MO 5 Alarm Reset (Reset lockout alarms); MI 1 Mode of Operation (Auto or shutdown status); MI 2 Comp Cmd Status (Compressor commanded on/off); AI 3 Enter Load Temp (Entering load water temperature); AI 4 Leave Load temp (Leaving load water temperature); AI 14 Alarms Enumerated (Active alarm code).
How do I enable BMS control of the WaterFurnace Envision Single Compressor Water-to-Water Heat Pump (FX10)?
There is no internal temperature control or enable point: the unit runs only on external compressor (Y1) and reversing valve (O) calls, sent either at the terminal board or over the network. Emergency shutdown comes from MO3 Emerg Override (5=Shutdown) or a closed contact on BI-2.
How do I check these points on the real Envision Single Compressor Water-to-Water Heat Pump (FX10)?
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 Aurora HydroLink for NXW/SKW Water-to-Water Heat Pumps
WaterFurnace NXW and SKW dual-scroll water-to-water heat pumps (including header rack arrangements) with the Aurora HydroLink controller.
Also known as: PL2500EW, HydroLink, NXW, SKW, WCHDM, HYDWWB01 - Rooftop unit controller (water-source, with economizer)
WaterFurnace Aurora UPC, Dual Compressor Rooftop Unit with Economizer
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-source heat pump controller
WaterFurnace Envision Water-to-Air Heat Pump, 1-6 Ton
WaterFurnace Envision 1 to 6 ton water-to-air heat pumps with the DDC controller option.
Also known as: Envision BACnet Variables, Envision BACnet Variables with BI, Envision 1-6 Ton - 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.
Also known as: PROFXENV-RH-00, PROFXENV-RH, Envision hot gas reheat, WaterFurnace FX10 - Water-to-water heat pump controller
WaterFurnace Versatec Dual Compressor Water-to-Water Heat Pump (FX10)
WaterFurnace Versatec dual-compressor water-to-water heat pumps with the FX10 DDC controller and expansion board.
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)
WaterFurnace Versatec single-compressor water-to-water heat pumps with the FX10 DDC controller.
Also known as: PROSSWW-03, PROSSWW, Versatec Water-to-Water, WaterFurnace FX10
Source: BACnet Points List for Single Compressor Water to Water · PROSSWWE-01. Object names, instances and units are reproduced as published; descriptions are our own.