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Commercial gas water heater control · BACnet points list
PVI EOS (BTCII) water heater control BACnet points list
Updated 7 November 2026
The EOS BTCII control on PVI water heaters speaks BACnet MS/TP (or Modbus RTU) directly from the back of its touch screen. It exposes only Analog Inputs and Analog Values: system status and alert, target and system temperature, the heater's probes, ignition state, modulation, relay states, flame current, run hours, cycles and error code, plus writable system enable, setpoint, heater enable and pump force-on outputs. Cascade objects are present but not used on water heaters.
This page lists 37 BACnet objects for the PVI EOS (BTCII) water heater control — 7 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from PVI’s own free documentation, linked below.
- Manufacturer
- PVI
- Model
- EOS (BTCII) water heater control
- Equipment
- Commercial gas water heater control
- Equipment type
- Boilers & water heaters
- BACnet objects
- 37 (7 writable)
- Transport
- BACnet MS/TP
- Firmware
- J1239D-570 and newer
- Also known as
- PVI EOS, BTCII, EOS Controller, Conquest, PVI Conquest, J1239D-570, PV7213, Power VTX, TurboPower 96
Reference only, provided as-is: verify against PVI’s current documentation and the live device before use. Not official PVI information. Terms of use.
BMS integration notes: PVI EOS (BTCII) water heater control
Set the BTCII network mode to BACnet on the display, give it a device instance and MAC, and wire the 3-pin RS-485 terminal. Enable the heater with HEATER 1 ENABLE (and SYSTEM ENABLE), write SETPOINT, and read SYSTEM STATUS, the tank probes, HEATER 1 ALERT and HEATER 1 ERROR.
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 |
|---|---|---|---|
| AV 1000 | HEATER 1 ENABLE | Heater enable (1 = enable) | Write |
| AV 2 | SETPOINT | Water heater setpoint | Write |
| AI 0 | SYSTEM STATUS | 0 disabled, 1 idle, 2 heating | Read |
| AI 1005 | HEATER 1 PROBE 1 | Outlet / top of tank temperature | Read |
| AI 1006 | HEATER 1 PROBE 2 | Mid-tank temperature | Read |
| AI 1003 | HEATER 1 ALERT | 0 ok, 1 alert, 2 soft lockout, 3 hard lockout | Read |
| AI 1018 | HEATER 1 ERROR | Latest error code (0 = none) | Read |
Enable & remote start
HEATER 1 ENABLE (AV 1000) enables or disables the heater (1/0). SYSTEM ENABLE (AV 0) is a separate system enable from the setup menu. The TH input (R1-R2, jumpered at the factory) must also be closed; AI 1001 shows it.
Network setup
- On the display: Toolbox menu, access level ADV, then NETWORK menu: set MODE (BAS) to BACN.
- Device instance is entered on the display (1-4194303); MAC 1-127 (default 3); baud 2400-115k (default 38k4); Max Master default 127; Max Info Frames default 1.
- RS-485 on a 3-pin terminal on the back of the BTCII display: A(-) to the BAS D+, B(+) to D-, plus ground. No bias or termination resistors are built in.
- The port is shared with Modbus RTU; only one protocol is active.
Watch out for
- SYSTEM STATUS does not show errors; a lockout reads as Idle. Use HEATER 1 ALERT and HEATER 1 ERROR.
- Do not use the cascade or boiler-only points on a water heater.
PVI EOS (BTCII) water heater control 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 | 0 | SYSTEM STATUS | System status | Read | 0=Disabled, 1=Idle, 2=Heating | |
| AI | 1 | SYSTEM DEMAND | External enable input (1 = on) | Read | ||
| AI | 2 | SYSTEM ALERT | System alert | Read | 0=Off, 1=Alert, 2=Error | |
| AI | 3 | SYSTEM TARGET | Target temperature in use | °F | Read | |
| AI | 4 | SYSTEM TEMP | Operating (system) sensor temperature | °F | Read | |
| AI | 5 | CASCADE STATUS | Cascade communication status | Read | 0=Standalone, 1=Working, 2=Not All Talking, 3=No Connection | |
| AI | 6 | CASCADE INSTALLED | Boilers configured in the cascade | Read | ||
| AI | 7 | CASCADE TALKING | Boilers talking on the cascade | Read | ||
| AI | 8 | CASCADE ENABLED | Enabled boilers in the system | Read | ||
| AI | 9 | CASCADE OPERATING | Boiler currently modulating | Read | ||
| AI | 10 | CASCADE LEAD | Current lead boiler number | Read | ||
| AI | 1000 | HEATER 1 STATUS | Cascade communication status of this unit | Read | 0=No Communication, 1=Communicating, 2=Lost Communication | |
| AI | 1001 | HEATER 1 TH | TH enable input (R1-R2) | Read | 0=Open (disabled), 1=Closed (enabled) | |
| AI | 1002 | HEATER 1 DHW | DHW call input | Read | 0=Off, 1=On | |
| AImin | 1003 | HEATER 1 ALERT | Alert status | Read | 0=None, 1=Alert, 2=Auto (soft lockout), 3=Manual (hard lockout) | |
| AI | 1004 | HEATER 1 IGNITION | Burner sequence | Read | 0=Idle, 1=Prepurge, 2=Ignition, 3=Burner On, 4=Postpurge, 5=Fail | |
| AImin | 1005 | HEATER 1 PROBE 1 | Outlet probe (top of tank / boiler outlet) | °F | Read | |
| AImin | 1006 | HEATER 1 PROBE 2 | Inlet probe (mid tank / return) | °F | Read | |
| AI | 1007 | HEATER 1 PROBE 3 | Vent (flue) probe | °F | Read | |
| AI | 1008 | HEATER 1 PROBE 4 | Probe 4 (DHW sensor input) | °F | Read | |
| AI | 1009 | HEATER 1 PROBE 5 | Probe 5 (supply sensor input) | °F | Read | |
| AI | 1010 | HEATER 1 PROBE 6 | Probe 6 (outdoor sensor input) | °F | Read | |
| AI | 1011 | HEATER 1 MOD | Modulation rate, 0-100 % | % | Read | |
| AI | 1012 | HEATER 1 RELAY 1 | Relay J14-1 (pump 2, typically DHW/sanitary) status | Read | 0=Off, 1=On | |
| AI | 1013 | HEATER 1 RELAY 2 | Relay J14-2 (pump 1, heater pump) status | Read | 0=Off, 1=On | |
| AI | 1014 | HEATER 1 EMS VOLTAGE | EMS analog input (PIM J1-8/9) | Read | ||
| AI | 1015 | HEATER 1 CURRENT | Flame current (10 = 1 µA) | Read | ||
| AI | 1016 | HEATER 1 RUNTIME | Burner run hours, rolls over at 65535 | h | Read | |
| AI | 1017 | HEATER 1 CYCLES | Burner start attempts, rolls over at 65535 | Read | ||
| AImin | 1018 | HEATER 1 ERROR | Latest error code (0 = none) | Read | ||
| AV | 0 | SYSTEM ENABLE | System enable | Write | 0=Disabled, 1=Enabled | |
| AV | 1 | BAS TARGET | BAS setpoint; overrides SETPOINT when non-zero | °F | Write | |
| AVmin | 2 | SETPOINT | Heater setpoint | °F | Write | |
| AV | 3 | ROTATION | Rotation (no details in the manual) | Write | ||
| AVmin | 1000 | HEATER 1 ENABLE | Heater enable | Write | 0=Disable, 1=Enable | |
| AV | 1001 | HEATER 1 DRIVE 1 | Pump relay force-on (see note on drive numbering) | Write | 0=Auto, 1=Force On | |
| AV | 1002 | HEATER 1 DRIVE 2 | Pump relay force-on (see note on drive numbering) | Write | 0=Auto, 1=Force On |
No points match these filters.
Object ID lookup: PVI EOS water heater control point IDs by name
AI0SYSTEM STATUSAI1SYSTEM DEMANDAI2SYSTEM ALERTAI3SYSTEM TARGETAI4SYSTEM TEMPAI5CASCADE STATUSAI6CASCADE INSTALLEDAI7CASCADE TALKINGAI8CASCADE ENABLEDAI9CASCADE OPERATINGAI10CASCADE LEADAI1000HEATER 1 STATUSAI1001HEATER 1 THAI1002HEATER 1 DHWAI1003HEATER 1 ALERTAI1004HEATER 1 IGNITIONAI1005HEATER 1 PROBE 1AI1006HEATER 1 PROBE 2AI1007HEATER 1 PROBE 3AI1008HEATER 1 PROBE 4AI1009HEATER 1 PROBE 5AI1010HEATER 1 PROBE 6AI1011HEATER 1 MODAI1012HEATER 1 RELAY 1AI1013HEATER 1 RELAY 2AI1014HEATER 1 EMS VOLTAGEAI1015HEATER 1 CURRENTAI1016HEATER 1 RUNTIMEAI1017HEATER 1 CYCLESAI1018HEATER 1 ERRORAV0SYSTEM ENABLEAV1BAS TARGETAV2SETPOINTAV3ROTATIONAV1000HEATER 1 ENABLEAV1001HEATER 1 DRIVE 1AV1002HEATER 1 DRIVE 2
Integration notes
- Object names and instances follow the discovery list printed in the manual (instance 9002 example). The manual's point details mark each point Typical, Advanced or Don't use.
- Cascade objects (AI 5-10), SYSTEM DEMAND, HEATER 1 STATUS, HEATER 1 DHW, BAS TARGET and ROTATION are marked not used for water heaters.
- The point details swap the drive numbering: they list HEATER 1 DRIVE 2 at 1001 (pump 2, DHW/sanitary) and DRIVE 1 at 1002 (heater pump), while the discovery list has DRIVE 1 at 1001 and DRIVE 2 at 1002. Check on site.
- Flame current is reported with BACnet units of milliamperes, but the value is in tenths of a microamp (10 = 1 µA).
- Error codes 1-31 (manual list): 1 EEPROM, 2 outdoor sensor, 3 supply sensor, 4 DHW sensor, 5 software, 6 FTBus comm, 7 LWCO, 8 remote proving, 9 air pressure, 10 low gas pressure, 11-14 outlet/inlet/vent/hi-limit sensor, 15 ignition failure, 16 flame loss, 17 vent hi-limit, 18 tank hi-limit, 19 false flame, 20 OEM card, 21 internal failure, 22 hi-delta, 23 low HSI, 24 low voltage, 25 blower speed, 26 high gas pressure, 27-31 linked-system communication.
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 EOS (BTCII) water heater control 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 PVI EOS (BTCII) water heater control
How many BACnet points does the PVI EOS (BTCII) water heater control have?
This list has 37 BACnet objects: 30 analog inputs, 7 analog values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which PVI EOS (BTCII) water heater control BACnet points are writable?
7 of the 37 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 PVI EOS (BTCII) water heater control BACnet documentation?
The source is EOS Interface Guide, and Points List - For EOS BTCII Firmware Version J1239D-570 and Newer (PV7213 (PN 144594)), revision 2021-01, published free by PVI at https://www.pvi.com/dfsmedia/0533dbba17714b1ab581ab07a4cbb521/53661-source/eos-interface-and-points-list-pv7213.pdf.
What are the minimum BACnet points to integrate the PVI EOS (BTCII) water heater control?
Start with AV 1000 HEATER 1 ENABLE (Heater enable (1 = enable)); AV 2 SETPOINT (Water heater setpoint); AI 0 SYSTEM STATUS (0 disabled, 1 idle, 2 heating); AI 1005 HEATER 1 PROBE 1 (Outlet / top of tank temperature); AI 1006 HEATER 1 PROBE 2 (Mid-tank temperature); AI 1003 HEATER 1 ALERT (0 ok, 1 alert, 2 soft lockout, 3 hard lockout); AI 1018 HEATER 1 ERROR (Latest error code (0 = none)).
How do I enable BMS control of the PVI EOS (BTCII) water heater control?
HEATER 1 ENABLE (AV 1000) enables or disables the heater (1/0). SYSTEM ENABLE (AV 0) is a separate system enable from the setup menu. The TH input (R1-R2, jumpered at the factory) must also be closed; AI 1001 shows it.
How do I check these points on the real EOS (BTCII) water heater control?
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 PVI BACnet points lists
- Digital DHW mixing valve controller
PVI DigiTemp Jr. digital mixing valve
PVI DigiTemp Jr. digital 3-way hot water mixing valves (control module 1096).
Also known as: DigiTemp Jr, DigiTemp Junior, PVI DigiTemp, 1096-03 - Commercial boiler control
PVI EOS (BTCII) boiler control - HeatStation
PVI HeatStation boilers with the EOS BTCII touch-screen control, standalone or as the master of a cascade of up to 12 boilers, firmware J1239D-570 or newer.
Also known as: PVI EOS boiler, BTCII, EOS Controller, HeatStation, PVI HeatStation, J1239D-570, PV7214
Source: EOS Interface Guide, and Points List - For EOS BTCII Firmware Version J1239D-570 and Newer · PV7213 (PN 144594) · rev. 2021-01. Object names, instances and units are reproduced as published; descriptions are our own.