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Steam heating control (boiler or district steam valve) · BACnet points list
Heat-Timer SRC Platinum (BACnet) BACnet points list
Updated 6 November 2026
The SRC Platinum controls steam heating on outdoor temperature, either through a burner/valve or a modulating district steam valve with position feedback or timed control. Its BACnet board exposes the settings, valve trims and position, schedule slots and sensor readings as Analog, Binary and Multi-state Values with instances in steps of 100.
This page lists 41 BACnet objects for the Heat-Timer SRC Platinum (BACnet) — 35 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Heat-Timer’s own free documentation, linked below.
- Manufacturer
- Heat-Timer
- Model
- SRC Platinum (BACnet)
- Equipment
- Steam heating control (boiler or district steam valve)
- Equipment type
- Boilers & water heaters
- BACnet objects
- 41 (35 writable)
- Transport
- BACnet IP, BACnet MS/TP
- Firmware
- Not stated
- Also known as
- SRC, SRC Platinum, Heat-Timer SRC, Platinum BACnet
Reference only, provided as-is: verify against Heat-Timer’s current documentation and the live device before use. Not official Heat-Timer information. Terms of use.
BMS integration notes: Heat-Timer SRC Platinum (BACnet)
The SRC runs steam heating (burner/valve or a district steam valve) on outdoor temperature. From the BMS, read the system and outdoor temperatures, the valve position and the burner status; adjust the system setpoint or heat adjustments, set a manual valve target, and force a day/night shift if needed.
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 |
|---|---|---|---|
| MV 2900 | SHIFT | Force day/night: 1 To-Day, 2 To-Night, 3 Extend-Day | Write |
| AV 3900 | XYZTEMP | System setpoint (burner/valve mode) | Write |
| AV 1500 | MVTARGET | Manual valve target, % | Write |
| AV 3000 | SYSSEN | System sensor temperature | Read |
| AV 1800 | ODTEMP | Outdoor temperature | Read |
| AV 3200 | VALVE | Valve position, % | Read |
| BV 400 | BURNER | Burner status (1 = on) | Read |
Network setup
- BACnet IP or BACnet MS/TP is chosen at the panel (Network Settings > Switch to IP / Switch to MS/TP).
- Device ID is a 7-digit number entered at the panel; the device object name is HTC_ followed by the panel serial number.
- MS/TP: MAC address 1-127 (default 1), baud 9600, 19200 or 38400 (default 9600), 8 data bits, no parity, 1 stop bit.
- IP: leave the IP and mask blank for DHCP, or enter a fixed address at the panel.
Watch out for
- XYZMIN applies in District Steam mode; XYZTEMP in Burner/valve mode.
- BOOSTADJ applies with BOOSTMODE VariDay/VariDayNight; BOOSTTIME with ManualBoost.
- The weekly schedule is 56 AV slots (instances 2700-2755), minutes since midnight; 1440 = empty slot.
Heat-Timer SRC Platinum (BACnet) 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 | |||||
|---|---|---|---|---|---|---|
| AV | 0 | BOOSTADJ | Vari-Boost Adjustment; range printed "0 1 - 6 4" | Write | ||
| MV | 100 | BOOSTMODE | Boost Mode | Write | 1=BoostOff, 2=ManualBoost, 3=VariDay, 4=VariDayNight | |
| AV | 200 | BOOSTTIME | Manual Boost Time; range 0 - 120 | min | Write | |
| AV | 300 | BPTIME | Bypass Time; range 0 - 2,147,483,647 | min | Read | |
| BVmin | 400 | BURNER | Burner Status | Read | 0=Off, 1=On | |
| BV | 500 | BYPASSMODE | Bypass Mode | Write | 0=AUTO, 1=ON | |
| AV | 600 | CLENGTH | Cycle Length; range 10 - 240 | min | Write | |
| AV | 700 | CUTOFFPCT* | Valve % at Cutoff; range 0 - 100 | % | Write | |
| MV | 800 | DAYADJUST | Day Heat Adjustment | Write | 1=A, 2=B, 3=C, 4=D, 5=E, 6=F, 7=G, 8=H, 9=I, 10=J, 11=K, 12=L, 13=M, 14=N, 15=O, 16=P | |
| AV | 900 | DAYCUTOFF | Outdoor Day Cutoff; range -6 - 38°C, 20 - 100°F | °F or °C (per INMODE) | Write | |
| BV | 1000 | DLS | Day Light Saving | Write | 0=Enable, 1=Disable | |
| BV | 1100 | FAULTMODE | Sensor Fault Mode | Write | 0=OutputOn, 1=OutputOff | |
| AV | 1200 | FREEZPCT | Valve % at Freezing; range 0 - 100 | % | Write | |
| BV | 1300 | INMODE | Sensor Mode | Read | 0=°F, 1=°C | |
| AV | 1400 | MOTORTIME | Motor Time; range 120 - 600 | s | Write | |
| AVmin | 1500 | MVTARGET | Manual Valve Target; range 0 - 100 | % | Write | |
| MV | 1600 | NADJUST | Night Heat Adjustment | Write | 1=A, 2=B, 3=C, 4=D, 5=E, 6=F, 7=G, 8=H, 9=I, 10=J, 11=K, 12=L, 13=M, 14=N, 15=O, 16=P | |
| AV | 1700 | NCUTOFF | Outdoor Night Cutoff; range -6 - 38°C, 20 - 100°F | °F or °C (per INMODE) | Write | |
| AVmin | 1800 | ODTEMP | Outdoor Sensor; range -40 - 122°C, -40 - +250°F | °F or °C (per INMODE) | Read | |
| AV | 1900 | ODTRIM | Outdoor Sensor Trim; range -3 - +3°C, -5 - +5°F | °F or °C (per INMODE) | Write | |
| AV | 2000 | OFFPCT | Valve Off %; range 0 - 100 | % | Write | |
| BV | 2100 | OPMODE | Operation Mode | Write | 0=Burner/valve, 1=District Steam | |
| AV | 2200 | PAUSETIME | Pause Time; range 0 - 60 | s | Write | |
| AV | 2300 | PDATE | Panel Date; range 0 - 2,147,483,647 | days since 1/1/1981 | Write | |
| AV | 2400 | PTIME | Panel Time; range 0 - 1439 | min since 0:00 | Write | |
| BV | 2500 | PULSECLOSE | Pulse Close Enable | Write | 0=No, 1=Yes | |
| BV | 2600 | PUMP | Vacuum Pump Relay | Write | 0=Off, 1=On | |
| AV | 2700 | SCHEDULES00 | Schedules; range 0 - 1439, 1440=empty schedule (first of 2700-2755) | min since 0:00 | Write | |
| AV | 2755 | SCHEDULES55 | Schedules; range 0 - 1439, 1440=empty schedule (last of 2700-2755) | min since 0:00 | Write | |
| BV | 2800 | SEASON | Season | Write | 0=Winter, 1=Summer | |
| MVmin | 2900 | SHIFT | Day/Night Shift | Write | 1=To-Day, 2=To-Night, 3=Extend-Day, 4=To-Schedule | |
| AVmin | 3000 | SYSSEN | System Sensor; range -40 - 122°C, -40 - +250°F | °F or °C (per INMODE) | Read | |
| AV | 3100 | SYTRIM | System Sensor Trim; range -3 - +3°C, -5 - +5°F | °F or °C (per INMODE) | Write | |
| AVmin | 3200 | VALVE | Valve Position; range 0 - 100 | % | Read | |
| AV | 3300 | VCLSOD | Valve Close Overdrive; range 0 - 90 | s | Write | |
| AV | 3400 | VCLSTRM | Valve Close Trim; range 0 - 5 | % | Write | |
| BV | 3500 | VMODE | Valve Mode | Write | 0=Positioning Sensor, 1=Time Based | |
| AV | 3600 | VOPNTRM | Valve Open Trim; range 0 - 5 | % | Write | |
| AV | 3700 | VTRIM | Valve Trim; range 0 - 20 | % | Write | |
| AV | 3800 | XYZMIN | District Steam Delay; range 0 - 30 | min | Write | |
| AVmin | 3900 | XYZTEMP | System Setpoint; range 21 - 122°C, 70 - 250°F | °F or °C (per INMODE) | Write |
No points match these filters.
Object ID lookup: Heat-Timer SRC Platinum point IDs by name
AV0BOOSTADJMV100BOOSTMODEAV200BOOSTTIMEAV300BPTIMEBV400BURNERBV500BYPASSMODEAV600CLENGTHAV700CUTOFFPCT*MV800DAYADJUSTAV900DAYCUTOFFBV1000DLSBV1100FAULTMODEAV1200FREEZPCTBV1300INMODEAV1400MOTORTIMEAV1500MVTARGETMV1600NADJUSTAV1700NCUTOFFAV1800ODTEMPAV1900ODTRIMAV2000OFFPCTBV2100OPMODEAV2200PAUSETIMEAV2300PDATEAV2400PTIMEBV2500PULSECLOSEBV2600PUMPAV2700SCHEDULES00AV2755SCHEDULES55BV2800SEASONMV2900SHIFTAV3000SYSSENAV3100SYTRIMAV3200VALVEAV3300VCLSODAV3400VCLSTRMBV3500VMODEAV3600VOPNTRMAV3700VTRIMAV3800XYZMINAV3900XYZTEMP
Integration notes
- Objects are Analog, Binary and Multi-state Values only. Rows without a read-only mark in the manual are listed as writable.
- Temperature objects use °F or °C depending on the INMODE (sensor type/mode) setting.
- Start-up settings can be read but not written over BACnet; Heat-Timer says to set them at the panel first.
- The manual prints some rows as ranges (SCHEDULES00-55 = 2700-2755). Only the first and last printed objects of each range are listed here; the ones in between follow the same pattern.
- CUTOFFPCT is printed with an asterisk in the manual; the footnote is not explained on the page.
- BOOSTADJ is printed with the range "0 1 - 6 4" (decimal points appear to be missing).
- Variable list: manual pages 18-19.
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 SRC Platinum (BACnet) 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 Heat-Timer SRC Platinum (BACnet)
How many BACnet points does the Heat-Timer SRC Platinum (BACnet) have?
This list has 41 BACnet objects: 27 analog values, 10 binary values, 4 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Heat-Timer SRC Platinum (BACnet) BACnet points are writable?
35 of the 41 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 Heat-Timer SRC Platinum (BACnet) BACnet documentation?
The source is Platinum BACnet Installation and Configuration Manual (IP and MS/TP) - SRC Platinum BACnet Variable List (pp. 18-19) (HT# 059082-00C), published free by Heat-Timer at https://www.heat-timer.com/wp-content/uploads/2019/04/Platinum-BACnet-Configuration-Manual-059082C-Color.pdf.
What are the minimum BACnet points to integrate the Heat-Timer SRC Platinum (BACnet)?
Start with MV 2900 SHIFT (Force day/night: 1 To-Day, 2 To-Night, 3 Extend-Day); AV 3900 XYZTEMP (System setpoint (burner/valve mode)); AV 1500 MVTARGET (Manual valve target, %); AV 3000 SYSSEN (System sensor temperature); AV 1800 ODTEMP (Outdoor temperature); AV 3200 VALVE (Valve position, %); BV 400 BURNER (Burner status (1 = on)).
How do I check these points on the real SRC Platinum (BACnet)?
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 Heat-Timer BACnet points lists
- Boiler outdoor reset control
Heat-Timer HWR Platinum (BACnet)
Heat-Timer HWR Platinum hot water reset control for a single burner or a motorized mixing valve, with the BACnet IP/MS/TP communication board.
Also known as: HWR, HWR Platinum, Heat-Timer HWR, Platinum BACnet - Multiple boiler sequencing control
Heat-Timer HWRQ Platinum (BACnet)
Heat-Timer HWRQ Platinum hot water reset and sequencing control for multiple on/off or staged boilers, with the BACnet IP/MS/TP board.
Also known as: HWRQ, HWRQ Platinum, Heat-Timer HWRQ, Platinum BACnet - Boiler / steam heating plant control
Heat-Timer MPC Platinum (BACnet)
Heat-Timer MPC Platinum heating control for a burner/valve or district steam plant, with the BACnet IP/MS/TP board.
Also known as: MPC, MPC Platinum, Heat-Timer MPC, Platinum BACnet - Steam boiler sequencing control
Heat-Timer MPCQ Platinum (BACnet)
Heat-Timer MPCQ Platinum steam heating and boiler sequencing control (pressure based), with the BACnet IP/MS/TP board.
Also known as: MPCQ, MPCQ Platinum, Heat-Timer MPCQ, Platinum BACnet - Modulating boiler sequencing control
Heat-Timer Multi-MOD Platinum (BACnet)
Heat-Timer Multi-MOD Platinum control for up to 20 modulating boilers or stages (hot water, steam or reset), with the BACnet IP/MS/TP board.
Also known as: Multi-MOD, MultiMOD, Multi-MOD Platinum, Heat-Timer Multi-MOD, Platinum BACnet
Source: Platinum BACnet Installation and Configuration Manual (IP and MS/TP) - SRC Platinum BACnet Variable List (pp. 18-19) · HT# 059082-00C. Object names, instances and units are reproduced as published; descriptions are our own.