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Water-to-water heat pump controller · BACnet points list
WaterFurnace Versatec Single Compressor Water-to-Water Heat Pump (FX10) BACnet points list
Updated 28 October 2026
BACnet objects for WaterFurnace's single-compressor Versatec water-to-water heat pump on the FX10 DDC controller. The BAS sends the compressor (Y1) and reversing valve (O) calls, and reads load/source water temperatures, refrigerant freeze temperatures, flow switches and an enumerated alarm code.
This page lists 23 BACnet objects for the WaterFurnace Versatec 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
- Versatec Single Compressor Water-to-Water Heat Pump (FX10)
- Equipment
- Water-to-water heat pump controller
- Equipment type
- Heat pumps
- BACnet objects
- 23 (4 writable)
- Transport
- —
- Firmware
- Not stated
- Also known as
- PROSSWW-03, PROSSWW, Versatec Water-to-Water, WaterFurnace FX10
- Source document
- BACnet Points for Versatec Water to Water · PROSSWW-03
BMS integration notes: WaterFurnace Versatec Single Compressor Water-to-Water Heat Pump (FX10)
The BAS stages this unit directly: MO2 is the compressor (Y1) call and MO3 the reversing valve (O) call. MO1 gives a network emergency shutdown and MO6 resets manual-reset alarms. Supervise it with the load water temperatures, the flow switches and the AI9 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 2 | Compressor 1 Enable | Compressor call (Y1) | Write |
| MO 3 | Valve Enable | Heating/cooling selection | Write |
| MO 1 | Emergency Override | Network emergency shutdown | Write |
| MO 6 | Alarm Reset | Reset manual-reset alarms | Write |
| MI 1 | Mode of Operation | Auto or shutdown status | Read |
| BI 1 | Compressor 1 Output | Compressor commanded on/off | Read |
| AI 3 | Load EWT | Entering load water temperature | Read |
| AI 4 | Load LWT | Leaving load water temperature | Read |
| AI 9 | Alarms Enumerated | Active alarm code | Read |
Enable & remote start
This sheet lists no enable point: the BAS controls the unit by writing the compressor (MO2, Y1) and reversing valve (MO3, O) calls. WaterFurnace's other FX10 water-to-water sheets say these units run only on external Y1/O calls, from the terminal board or the network. MO1 Emergency Override shuts down all outputs and overrides the compressor minimum run timers.
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.
- MO3 uses 1=Heating, 2=Cooling on this sheet; the Versatec dual-compressor sheet uses the opposite order, so check before reusing a template.
- Do not write MO4 Application Mode or MO5 Heat Cool Mode; WaterFurnace recommends leaving them alone.
- Alarm Reset needs a write of 2 followed by 1.
WaterFurnace Versatec 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 Temp | Refrigerant temp entering source heat exchanger | Read | ||
| AI | 2 | Load Frz Temp | Refrigerant temp entering load heat exchanger | Read | ||
| AImin | 3 | Load EWT | Entering load water temperature | Read | ||
| AImin | 4 | Load LWT | Leaving load water temperature | Read | ||
| AI | 5 | Source EWT | Entering source water temperature | Read | ||
| AI | 6 | Source LWT | Leaving source water temperature | Read | ||
| AI | 7 | Load Freeze Setpt | Load-side refrigerant low temperature limit | Read | ||
| AI | 8 | Src Freeze Setpt | Source-side refrigerant low temperature limit | Read | ||
| AImin | 9 | Alarms Enumerated | Active alarm code | Read | 1=Load Flow Fault; 2=Compressor 1 Low Pressure; 3=Compressor 1 Source Freeze; 4=Compressor 1 Load Freeze; 5=Source Flow Fault; 6=Compressor 1 Hi Pressure; 7=Compressor 1 Bad Source Freeze Sensor; 8=Compressor 1 Bad Load Freeze Sensor | |
| BImin | 1 | Compressor 1 Output | Commanded compressor state | Read | Inactive=Off; Active=On | |
| BI | 2 | RV 1 Output | Commanded reversing valve position | Read | Inactive=Heating; Active=Cooling | |
| BI | 3 | Accessory 1 Output | X1 (accessory 1) output state | Read | Inactive=Off; Active=On | |
| BI | 4 | Accessory 2 Output | X2 (accessory 2) output state | Read | Inactive=Off; Active=On | |
| BI | 6 | Alarm Output | L (alarm) output state | Read | Inactive=Off; Active=On | |
| BI | 7 | LoadFlow | Load flow switch contact | Read | Inactive=Off; Active=On | |
| BI | 8 | SrcFlow | Source flow switch contact | Read | Inactive=Off; Active=On | |
| MImin | 1 | Mode of Operation | Normal operation or emergency shutdown | Read | 1=Auto; 7=Emergency shutdown | |
| MOmin | 1 | Emergency Override | Network emergency shutdown of all outputs | Write | ||
| MOmin | 2 | Compressor 1 Enable | Network compressor call (thermostat Y1) | Write | 1=Off; 2=On | |
| MOmin | 3 | Valve Enable | Network reversing valve call (thermostat O) | Write | 1=Heating; 2=Cooling | |
| MO | 4 | Application Mode | Not used; WaterFurnace advises against writing it | Read | ||
| MO | 5 | Heat Cool Mode | Not used; WaterFurnace advises against writing it | Read | ||
| MOmin | 6 | Alarm Reset | Reset manual-reset alarms: write 2, then back to 1 | Write |
No points match these filters.
Integration notes
- Output-type points are volatile and fall back to uncommanded after a power cycle; unlimited writes.
- The sheet lists no AV/MV points for this unit; all writable points are volatile outputs.
- No engineering units are printed in the source; temperatures are presumably degrees F.
- Binary input 3:5 is not listed in the sheet; the numbering jumps from BI 4 to BI 6.
- MO4 Application Mode and MO5 Heat Cool Mode are marked 'do not use' and have no stated access; listed here as read-only.
- 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 Versatec 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 Versatec Single Compressor Water-to-Water Heat Pump (FX10)
How many BACnet points does the WaterFurnace Versatec Single Compressor Water-to-Water Heat Pump (FX10) have?
This list has 23 BACnet objects: 9 analog inputs, 7 binary inputs, 1 multi-state input, 6 multi-state outputs. The exact set on a given unit depends on its firmware, installed options and configuration.
Which WaterFurnace Versatec Single Compressor Water-to-Water Heat Pump (FX10) BACnet points are writable?
4 of the 23 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 Versatec Single Compressor Water-to-Water Heat Pump (FX10) BACnet documentation?
The source is BACnet Points for Versatec Water to Water (PROSSWW-03), published free by WaterFurnace at https://www.waterfurnace.com/downloads/ddc/BACnet-Resources/BACnet-points-pdfs/PROSSWW-03.pdf.
What are the minimum BACnet points to integrate the WaterFurnace Versatec Single Compressor Water-to-Water Heat Pump (FX10)?
Start with MO 2 Compressor 1 Enable (Compressor call (Y1)); MO 3 Valve Enable (Heating/cooling selection); MO 1 Emergency Override (Network emergency shutdown); MO 6 Alarm Reset (Reset manual-reset alarms); MI 1 Mode of Operation (Auto or shutdown status); BI 1 Compressor 1 Output (Compressor commanded on/off); AI 3 Load EWT (Entering load water temperature); AI 4 Load LWT (Leaving load water temperature); AI 9 Alarms Enumerated (Active alarm code).
How do I enable BMS control of the WaterFurnace Versatec Single Compressor Water-to-Water Heat Pump (FX10)?
This sheet lists no enable point: the BAS controls the unit by writing the compressor (MO2, Y1) and reversing valve (MO3, O) calls. WaterFurnace's other FX10 water-to-water sheets say these units run only on external Y1/O calls, from the terminal board or the network. MO1 Emergency Override shuts down all outputs and overrides the compressor minimum run timers.
How do I check these points on the real Versatec 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
- Water-to-water heat pump controller
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-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-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
Source: BACnet Points for Versatec Water to Water · PROSSWW-03. Object names, instances and units are reproduced as published; descriptions are our own.