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Commercial boiler controller gateway · BACnet points list
Lochinvar Power Fin 2.5-5.0 (ProtoNode FPC-N54) BACnet points list
Updated 6 November 2026
Lochinvar's ProtoNode FPC-N54 start-up guide maps the larger Power Fin boilers (2.5-5.0) to 55 BACnet objects (Appendix C.7). Two BVs take the enable and tank demands, BIs give safety switch, flame, pump, valve and fan states, AIs give temperatures, firing rate, pump speed, status/blocking/lockout codes and the lockout codes of up to 7 cascade members, and eight AVs take the Modbus board command and BMS-supplied sensor values.
This page lists 55 BACnet objects for the Lochinvar Power Fin 2.5-5.0 (ProtoNode FPC-N54) — 10 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Lochinvar’s own free documentation, linked below.
- Manufacturer
- Lochinvar
- Model
- Power Fin 2.5-5.0 (ProtoNode FPC-N54)
- Equipment
- Commercial boiler controller gateway
- Equipment type
- Boilers & water heaters
- BACnet objects
- 55 (10 writable)
- Transport
- BACnet IP, BACnet MS/TP
- Firmware
- Not stated
- Also known as
- Power Fin 2.5-5.0, Power-Fin 2500-5000, PBN/PFN 2.5-5.0, Lochinvar Power Fin, ProtoNode FPC-N54
Reference only, provided as-is: verify against Lochinvar’s current documentation and the live device before use. Not official Lochinvar information. Terms of use.
BMS integration notes: Lochinvar Power Fin 2.5-5.0 (ProtoNode FPC-N54)
Enable the boiler with BV 1 (Boiler Enable/Room Thermostat 1/Stg 1) and, for DHW, BV 2; send a rate or setpoint on AV 50. Read boiler 1 status, outlet temperature, firing rate, flame, alarm contacts and the lockout codes.
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 |
|---|---|---|---|
| BV 1 | Boiler Enable/Room Thermostat 1/Stg 1 | Boiler enable / stage 1 demand from the BMS | Write |
| BV 2 | Tank Thermostat Cmd | Tank (DHW) demand from the BMS | Write |
| AV 50 | 0-10 Volt Input/Rate Cmd/SP Cmd | Rate or setpoint command from the BMS | Write |
| AV 48 | Configuration | Configuration register; see the Modbus manual | Write |
| AI 36 | Boiler 1 Status Code | What boiler 1 is doing | Read |
| AI 31 | Outlet Temperature 1 | Boiler 1 outlet water temperature | Read |
| AI 34 | Firing Rate 1 | Boiler 1 firing rate | Read |
| BI 8 | Flame 1 | Flame present on burner 1 | Read |
| BI 14 | Alarm Contacts 1 | Alarm contacts closed | Read |
| AI 38 | Boiler 1 Lockout Code | Boiler 1 lockout code | Read |
Enable & remote start
BV 1 Boiler Enable/Room Thermostat 1/Stg 1 and BV 2 Tank Thermostat Cmd are the demand commands; AV 48 Configuration, AV 49 Coils and AV 50 0-10 Volt Input/Rate Cmd/SP Cmd are the Modbus board command registers. The guide does not give the command sequence.
Sensors & values from the BMS
AV 52-55 (tank, outdoor, system supply and return temperature) are writable so the BMS can supply those values; the guide does not say when they are used.
Network setup
- ProtoNode FPC-N54 to the boiler: Modbus RTU, 9600 baud, no parity, 8 data bits, 2 stop bits (IPW: 19200 baud, 1 stop bit).
- Give each unit a unique Node-ID (1-255). BACnet device instance = Node_Offset (default 50,000) + Node-ID.
- BACnet IP or BACnet MS/TP is chosen in the ProtoNode web configurator.
Watch out for
- Access is inferred: the table has no read/write column; BVs and AVs (N2 DO/AO) are treated as writable.
- The guide does not explain Configuration, Coils or the rate/setpoint command; they carry the Lochinvar Modbus board registers, so read the boiler's Lochinvar Modbus communication manual before writing them.
- Discrete Inputs words pack 16 binary states each.
- Lockout Error Leader / Member 1-7 give the lockout codes of the cascade members.
Lochinvar Power Fin 2.5-5.0 (ProtoNode FPC-N54) 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.
Note: the source document has no read/write column, so access here is inferred from the object type (inputs read-only, values writable). Confirm on the live controller before writing.
| Description | States | |||||
|---|---|---|---|---|---|---|
| BVmin | 1 | Boiler Enable/Room Thermostat 1/Stg 1 | Write | |||
| BVmin | 2 | Tank Thermostat Cmd | Write | |||
| BI | 3 | Manual Reset High Limit 1 | Read | |||
| BI | 4 | Flow Switch 1 | Read | |||
| BI | 5 | Gas Pressure Switch 1 | Read | |||
| BI | 6 | Louver Proving Switch 1 | Read | |||
| BI | 7 | Blocked Drain Switch 1 | Read | |||
| BImin | 8 | Flame 1 | Read | |||
| BI | 9 | Enable/Room Thermostat 1/Stg 1 | Read | |||
| BI | 10 | Tank Thermostat | Read | |||
| BI | 11 | Stage 2/Air Pressure Switch | Read | |||
| BI | 12 | Air Pres Switch 2/Flap Vlv 2/Flue Vlv | Read | |||
| BI | 13 | Run-time Contacts | Read | |||
| BImin | 14 | Alarm Contacts 1 | Read | |||
| BI | 15 | CH Pump 1 | Read | |||
| BI | 16 | DHW Pump 1 | Read | |||
| BI | 17 | Louver Relay 1 | Read | |||
| BI | 18 | Gas Vlv 1 | Read | |||
| BI | 19 | System Pump | Read | |||
| BI | 20 | DHW Pump 2/Flue Valve | Read | |||
| BI | 21 | Mains Fan 1 | Read | |||
| BI | 22 | External Spark | Read | |||
| AI | 23 | Discrete Inputs 1 - 16 | Read | |||
| AI | 24 | Discrete Inputs 17 - 32 | Read | |||
| AI | 25 | Discrete Inputs 33 - 48 | Read | |||
| AI | 26 | System/Cascade Setpoint | Read | |||
| AI | 27 | System Pump Speed | Read | |||
| AI | 28 | Cascade Total Power | Read | |||
| AI | 29 | Cascade Current Power | Read | |||
| AI | 30 | Outlet Setpoint 1 | Read | |||
| AImin | 31 | Outlet Temperature 1 | Read | |||
| AI | 32 | Inlet Temperature 1 | Read | |||
| AI | 33 | Flue Temperature 1 | Read | |||
| AImin | 34 | Firing Rate 1 | Read | |||
| AI | 35 | Boiler 1 Pump Speed | Read | |||
| AImin | 36 | Boiler 1 Status Code | Read | |||
| AI | 37 | Boiler 1 Blocking Code | Read | |||
| AImin | 38 | Boiler 1 Lockout Code | Read | |||
| AI | 39 | Discrete Inputs 49-64 | Read | |||
| AI | 40 | Lockout Error Leader | Read | |||
| AI | 41 | Lockout Error Member 1 | Read | |||
| AI | 42 | Lockout Error Member 2 | Read | |||
| AI | 43 | Lockout Error Member 3 | Read | |||
| AI | 44 | Lockout Error Member 4 | Read | |||
| AI | 45 | Lockout Error Member 5 | Read | |||
| AI | 46 | Lockout Error Member 6 | Read | |||
| AI | 47 | Lockout Error Member 7 | Read | |||
| AVmin | 48 | Configuration | Write | |||
| AV | 49 | Coils | Write | |||
| AVmin | 50 | 0-10 Volt Input/Rate Cmd/SP Cmd | Write | |||
| AV | 51 | Tank Setpoint | Write | |||
| AV | 52 | Tank Temperature | Write | |||
| AV | 53 | Outdoor Temperature | Write | |||
| AV | 54 | System Supply Temperature | Write | |||
| AV | 55 | System Return Temperature | Write |
No points match these filters.
Object ID lookup: Lochinvar Power Fin 2.5-5.0 point IDs by name
BV1Boiler Enable/Room Thermostat 1/Stg 1BV2Tank Thermostat CmdBI3Manual Reset High Limit 1BI4Flow Switch 1BI5Gas Pressure Switch 1BI6Louver Proving Switch 1BI7Blocked Drain Switch 1BI8Flame 1BI9Enable/Room Thermostat 1/Stg 1BI10Tank ThermostatBI11Stage 2/Air Pressure SwitchBI12Air Pres Switch 2/Flap Vlv 2/Flue VlvBI13Run-time ContactsBI14Alarm Contacts 1BI15CH Pump 1BI16DHW Pump 1BI17Louver Relay 1BI18Gas Vlv 1BI19System PumpBI20DHW Pump 2/Flue ValveBI21Mains Fan 1BI22External SparkAI23Discrete Inputs 1 - 16AI24Discrete Inputs 17 - 32AI25Discrete Inputs 33 - 48AI26System/Cascade SetpointAI27System Pump SpeedAI28Cascade Total PowerAI29Cascade Current PowerAI30Outlet Setpoint 1AI31Outlet Temperature 1AI32Inlet Temperature 1AI33Flue Temperature 1AI34Firing Rate 1AI35Boiler 1 Pump SpeedAI36Boiler 1 Status CodeAI37Boiler 1 Blocking CodeAI38Boiler 1 Lockout CodeAI39Discrete Inputs 49-64AI40Lockout Error LeaderAI41Lockout Error Member 1AI42Lockout Error Member 2AI43Lockout Error Member 3AI44Lockout Error Member 4AI45Lockout Error Member 5AI46Lockout Error Member 6AI47Lockout Error Member 7AV48ConfigurationAV49CoilsAV500-10 Volt Input/Rate Cmd/SP CmdAV51Tank SetpointAV52Tank TemperatureAV53Outdoor TemperatureAV54System Supply TemperatureAV55System Return Temperature
Integration notes
- Appendix C.7 of the guide (pages 52-53).
- The table has no read/write column, units or states; access is inferred from the N2 type (DO/AO = writable).
- This is the ProtoNode numbering (objects 1-55). The Power-Fin list already in the library (lochinvar/power-fin) is the native Modbus/BACnet board map with different instance numbers.
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. This list is provided as-is for reference only and may contain mistakes — confirming it before you write, map or commission anything is up to you (terms). Easy BACnet scans a network for BACnet IP devices from an Android phone, reads every object on the Power Fin 2.5-5.0 (ProtoNode FPC-N54) 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 Lochinvar Power Fin 2.5-5.0 (ProtoNode FPC-N54)
How many BACnet points does the Lochinvar Power Fin 2.5-5.0 (ProtoNode FPC-N54) have?
This list has 55 BACnet objects: 25 analog inputs, 8 analog values, 20 binary inputs, 2 binary values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Lochinvar Power Fin 2.5-5.0 (ProtoNode FPC-N54) BACnet points are writable?
10 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. The source has no read/write column, so this is inferred from object type.
Where is the official Lochinvar Power Fin 2.5-5.0 (ProtoNode FPC-N54) BACnet documentation?
The source is ProtoNode FPC-N54 Start-up Guide For Interfacing Lochinvar Products, Appendix C.7 Power Fin 2.5-5.0 (Document Revision 5.A (Lochinvar 2000594856 Rev A)), revision 2020-06 (effective date), published free by Lochinvar at https://assets.lochinvar.com/damroot/Original/10014/161357100338377_2000594856_Rev%20A%20(ProtoNode%20FPC-N54%20Start-up%20Guide%20for%20Lochinvar).pdf.
What are the minimum BACnet points to integrate the Lochinvar Power Fin 2.5-5.0 (ProtoNode FPC-N54)?
Start with BV 1 Boiler Enable/Room Thermostat 1/Stg 1 (Boiler enable / stage 1 demand from the BMS); BV 2 Tank Thermostat Cmd (Tank (DHW) demand from the BMS); AV 50 0-10 Volt Input/Rate Cmd/SP Cmd (Rate or setpoint command from the BMS); AV 48 Configuration (Configuration register; see the Modbus manual); AI 36 Boiler 1 Status Code (What boiler 1 is doing); AI 31 Outlet Temperature 1 (Boiler 1 outlet water temperature); AI 34 Firing Rate 1 (Boiler 1 firing rate); BI 8 Flame 1 (Flame present on burner 1); BI 14 Alarm Contacts 1 (Alarm contacts closed); AI 38 Boiler 1 Lockout Code (Boiler 1 lockout code).
How do I enable BMS control of the Lochinvar Power Fin 2.5-5.0 (ProtoNode FPC-N54)?
BV 1 Boiler Enable/Room Thermostat 1/Stg 1 and BV 2 Tank Thermostat Cmd are the demand commands; AV 48 Configuration, AV 49 Coils and AV 50 0-10 Volt Input/Rate Cmd/SP Cmd are the Modbus board command registers. The guide does not give the command sequence.
Can the BMS supply sensor values to the Lochinvar Power Fin 2.5-5.0 (ProtoNode FPC-N54)?
AV 52-55 (tank, outdoor, system supply and return temperature) are writable so the BMS can supply those values; the guide does not say when they are used.
How do I check these points on the real Power Fin 2.5-5.0 (ProtoNode FPC-N54)?
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 Lochinvar BACnet points lists
- Commercial condensing water heater controller
Lochinvar Armor 1250-4000 water heater (SMART SYSTEM)
Lochinvar Armor volume water heaters, models 1250-4000, Series 100 and 101, with the SMART SYSTEM control and the Modbus/BACnet communication board.
Also known as: Armor, Armor 1250, Armor 4000, AWH, Armor Series 100, Armor Series 101, SMART SYSTEM, MTR-01, 100305786 - Commercial boiler / water heater / pool heater controller
Lochinvar Copper-fin II / IIE (CFX, CHX, CPX)
Lochinvar Copper-fin II/IIE boilers and water heaters (models 402-2072) and pool heaters (502-2072) with the SMART SYSTEM control.
Also known as: Copper-fin, Copper-Fin II, Copper-fin IIE, CFX, CHX, CPX, C(F,H,P)X-MODB, CB 402-2072, CW 402-2072 - Condensing boiler controller
Lochinvar Crest
Crest FB/OF 751-6001 and FCB 1000-6000 condensing boilers (the manual uses the same map for Hellcat).
Also known as: Crest FB, Crest OF, Crest FCB, Hellcat - Heating appliance controller gateway (IPW)
Lochinvar IPW (ProtoNode FPC-N54)
Lochinvar IPW units, read through the ProtoNode FPC-N54 gateway (Appendix C.8).
Also known as: IPW, Lochinvar IPW, ProtoNode FPC-N54 - Condensing boiler / water heater controller
Lochinvar Knight / Armor (SMART TOUCH)
Knight, Knight XL, Armor, Wall Mount, Wall Hung, AQUAS, FTXL and Shield boilers and water heaters with the SMART TOUCH control.
Also known as: Knight XL, Outdoor Knight, Armor, Wall Mount, Wall Hung, AQUAS, FTXL, Shield, MODB-I-O - Commercial boiler controller gateway
Lochinvar Knight FTXL (ProtoNode FPC-N54)
Lochinvar Knight FTXL fire-tube boilers, read through the ProtoNode FPC-N54 gateway.
Also known as: Knight FTXL, FTXL, Lochinvar FTXL, ProtoNode FPC-N54 - Electric boiler controller
Lochinvar Lectrus electric boiler (KEB)
Lochinvar Lectrus electric boilers, models KEB 0015-0150, with the Modbus/BACnet communication board.
Also known as: Lectrus, KEB, KEB0015, KEB0150, MODB-I-O-KEB, Lochinvar electric boiler - Commercial boiler / water heater controller
Lochinvar Power-Fin (SMART SYSTEM)
Lochinvar Power-fin models 502-1302 and 1501-2001, with the SMART SYSTEM control and the Modbus/BACnet communication board.
Also known as: Power-fin, Powerfin, PBX-PFX-MODB, SMART SYSTEM - Commercial water heater controller
Lochinvar Regent
Regent IWH 500-1000 commercial gas water heaters.
Also known as: Regent IWH, IWH500-1000 - Dual-heat-exchanger condensing boiler controller
Lochinvar SYNC
SYNC 1.0, 1.3 and 1.5 condensing boilers (two heat exchangers, reported as unit 1 and unit 2).
Also known as: SYNC 1.0, SYNC 1.3, SYNC 1.5, SYNC-MODB - Heat pump water heater plant controller
Lochinvar Veritus / Emerge_X heat pump water heater (ProtoNode FPC-N54)
Lochinvar Veritus and Emerge_X heat pump water heater systems (up to 64 units), read through the ProtoNode FPC-N54.
Also known as: Veritus, Emerge_X, Emerge X, Lochinvar Veritus, ProtoNode FPC-N54
Source: ProtoNode FPC-N54 Start-up Guide For Interfacing Lochinvar Products, Appendix C.7 Power Fin 2.5-5.0 · Document Revision 5.A (Lochinvar 2000594856 Rev A) · rev. 2020-06 (effective date). Object names, instances and units are reproduced as published; descriptions are our own.