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Multiple boiler sequencing control · BACnet points list
Heat-Timer HWRQ Platinum (BACnet) BACnet points list
Updated 6 November 2026
The HWRQ Platinum stages up to 32 boiler stages on outdoor reset or a fixed setpoint. Its BACnet board exposes the settings, per-boiler mode, status, lockout and communication-error objects, and the sensor readings, all as Analog, Binary and Multi-state Values with instances in steps of 100.
This page lists 50 BACnet objects for the Heat-Timer HWRQ Platinum (BACnet) — 41 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
- HWRQ Platinum (BACnet)
- Equipment
- Multiple boiler sequencing control
- Equipment type
- Boilers & water heaters
- BACnet objects
- 50 (41 writable)
- Transport
- BACnet IP, BACnet MS/TP
- Firmware
- Not stated
- Also known as
- HWRQ, HWRQ Platinum, Heat-Timer HWRQ, 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 HWRQ Platinum (BACnet)
The HWRQ sequences up to 32 boiler stages from its own outdoor reset or setpoint. From the BMS, read the calculated target, system and outdoor temperatures, boiler status and lockouts; adjust the setpoint/offset, put individual boilers in Auto/Standby/Off/On with MODE, 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 2000 | MODE00 | Boiler 1 mode: 1 Auto, 2 Standby, 3 Off, 4 On | Write |
| BV 700 | CONTROL | 0 = outdoor reset, 1 = fixed setpoint | Write |
| AV 3800 | SETPT | Fixed setpoint (CONTROL = Set Point) | Write |
| AV 2400 | OFFSET | Shift of the reset curve | Write |
| AV 4300 | TARG | Calculated water target | Write |
| AV 4100 | SYSSEN | System (supply) water temperature | Read |
| AV 2200 | ODTEMP | Outdoor temperature | Read |
| MV 300 | BSTATUS | Boiler stage status; codes depend on BTYPE | Read |
| BV 1500 | LOCK00 | Boiler 1 lockout input (1 = L/O) | Read |
| BV 600 | COMERR00 | Boiler 1 communication error | 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
- BSTATUS value range changes with BTYPE (Boiler Type).
- LSTHOLD, MINRUN, OFFSET, PURGE, R, REACT and STBYDLY apply with LOGIC = PID; THROTTLE with LOGIC = OSS.
- ZMAXTGT applies only when CONTROL = Reset.
- The weekly schedule is 56 AV slots (instances 3400-3455), minutes since midnight; 1440 = empty slot.
Heat-Timer HWRQ 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 | BOOST | Boost Offset; range 0 - 33°C, 0 - 60°F | °F or °C (per INMODE) | Write | |
| MV | 100 | BOOSTMODE | Boost Mode | Write | 1=Off, 2=Vari Boost, 3=Vari Boost & ESD | |
| AV | 200 | BPTIME | Bypass Time; range 0 - 2,147,483,647 | min | Read | |
| MVmin | 300 | BSTATUS | Boiler Status (printed for 300-331) | Read | BTYPE On/Off: 1=Off, 2=On; 2-Stage: 1=Off, 2=Low, 3=High; 3-Stage: 1=Off, 2=Low, 3=Med, 4=High; 4-Stage: 1=Off, 2=Low, 3=MLow, 4=MHigh | |
| MV | 400 | BTYPE | Boiler Type | Write | 1=On/Off, 2=2-Stage, 3=3-Stage, 4=4-Stage | |
| BV | 500 | BYPASSMODE | Bypass Mode | Write | 0=Auto, 1=Bypass | |
| BVmin | 600 | COMERR00 | Communication Error (first of 600-631) | Read | 0=(blank), 1=C/E | |
| BV | 631 | COMERR31 | Communication Error (last of 600-631) | Read | 0=(blank), 1=C/E | |
| BVmin | 700 | CONTROL | Control Mode | Write | 0=Reset, 1=Set Point | |
| AV | 800 | CUTOFF | Outdoor Cut-off; range 0 - 25°C, 30 - 75°F | °F or °C (per INMODE) | Write | |
| BV | 900 | DHWMODE | DHW Call Mode | Write | 0=No Priority, 1=Priority | |
| BV | 1000 | DLS | Day Light Saving | Write | 0=Enable, 1=Disable | |
| BV | 1100 | FAULTMODE | Sensor Fault Mode | Write | 0=Stages On, 1=Stages Off | |
| BV | 1200 | FCD | Fast Cool Down | Write | 0=Minimum Target Temp, 1=Off | |
| BV | 1300 | INMODE | Sensor Type | Write | 0=°F Sensor, 1=°C Sensor | |
| MV | 1400 | LEAD | Lead boiler; coding depends on Boiler Type (table in manual) | Write | ||
| BVmin | 1500 | LOCK00 | Lockout Input (first of 1500-1531) | Read | 0=(inactive), 1=L/O | |
| BV | 1531 | LOCK31 | Lockout Input (last of 1500-1531) | Read | 0=(inactive), 1=L/O | |
| BV | 1600 | LOGIC | Logic Mode | Write | 0=PID, 1=OSS | |
| AV | 1700 | LSTHOLD | Last Stage Hold; range 0 -17°C, 0 - 30°F | °F or °C (per INMODE) | Write | |
| AV | 1800 | MINRUN | Min Runtime; range 1-60 | min | Write | |
| AV | 1900 | MINTGT | Min Water Temp; range 21 - 77°C, 70 - 170°F | °F or °C (per INMODE) | Write | |
| MVmin | 2000 | MODE00 | Boiler Mode (first of 2000-2031) | Write | 1=Auto, 2=Standby, 3=Off, 4=On | |
| MV | 2031 | MODE31 | Boiler Mode (last of 2000-2031) | Write | 1=Auto, 2=Standby, 3=Off, 4=On | |
| AV | 2100 | NBOILER | Total Boilers; range 1 - 32/(BTYPE+1) | Write | ||
| AVmin | 2200 | ODTEMP | Outdoor Sensor; range -40 - 121°C, -40 - +250°F | °F or °C (per INMODE) | Read | |
| AV | 2300 | ODTRIM | Outdoor Sensor Trim; range -3 - +3°C, -5 - +5°F | °F or °C (per INMODE) | Write | |
| AVmin | 2400 | OFFSET | Offset Temp; range -22 - +22°C, -40 - +40°F | °F or °C (per INMODE) | Write | |
| AV | 2500 | PDATE | Panel Date; range 0 - 2,147,483,647 | days since 1/1/1981 | Write | |
| AV | 2600 | PRUNON | Pump Run-On; range 0 - 60 | min | Write | |
| AV | 2700 | PTIME | Panel Time; range 0 - 1439 | min since 0:00 | Write | |
| BV | 2800 | PUMP | Pump | Read | 0=Off, 1=On | |
| AV | 2900 | PURGE | Purge Delay; range 0-10 | min | Write | |
| MV | 3000 | R | Reset Ratio | Write | 1=A, 2=B, 3=C, 4=D, 5=E, 6=F, 7=G, 8=H, 9=I, 10=J | |
| AV | 3100 | REACT | Reaction Time; range 1 - 10 | min | Write | |
| MV | 3200 | RTMODE | Lead Stage Rotation Mode | Write | 1=Time, 2=Manual, 3=FOFO (no FOFO when LOGIC=OSS) | |
| AV | 3300 | RTTIME | Periodic Rotation Interval; range 1 - 999 | h | Write | |
| AV | 3400 | SCHEDULES00 | Schedules; range 0 - 1439, 1440=empty schedule (first of 3400-3455) | min since 0:00 | Write | |
| AV | 3455 | SCHEDULES55 | Schedules; range 0 - 1439, 1440=empty schedule (last of 3400-3455) | min since 0:00 | Write | |
| BV | 3500 | SEASON | Season | Write | 0=Winter, 1=Summer | |
| BV | 3600 | SEQUENCE | Sequence | Write | 0=Lo/Hi/Lo/Hi, 1=Lo/Lo/Hi/Hi | |
| AV | 3700 | SETBACK | Night Setback Temp; range -44 - 0°C, -80 - 0°F | °F or °C (per INMODE) | Write | |
| AVmin | 3800 | SETPT | Set point; range 21 - 116°C, 70 - 240°F | °F or °C (per INMODE) | Write | |
| MV | 3900 | SHIFT | Day Night Shift | Write | 1=Day, 2=Night, 3=Day Extended 90 Minutes, 4=Resync to Schedule | |
| AV | 4000 | STBYDLY | Standby Delay; range 1 - 60 | min | Write | |
| AVmin | 4100 | SYSSEN | System Sensor; range -40 - 121°C, -40 - +250°F | °F or °C (per INMODE) | Read | |
| AV | 4200 | SYTRIM | System Sensor Trim; range -3 - +3°C, -5 - +5°F | °F or °C (per INMODE) | Write | |
| AVmin | 4300 | TARG | Calculated Target; range 0 - 116°C, 0 - 240°F | °F or °C (per INMODE) | Write | |
| AV | 4400 | THROTTLE | Throttle Range; range 1 - 11°C , 2 - 20°F | °F or °C (per INMODE) | Write | |
| AV | 4500 | ZMAXTGT | Max Target Temp; range 32 - 116°C, 90 - 240°F | °F or °C (per INMODE) | Write |
No points match these filters.
Object ID lookup: Heat-Timer HWRQ Platinum point IDs by name
AV0BOOSTMV100BOOSTMODEAV200BPTIMEMV300BSTATUSMV400BTYPEBV500BYPASSMODEBV600COMERR00BV631COMERR31BV700CONTROLAV800CUTOFFBV900DHWMODEBV1000DLSBV1100FAULTMODEBV1200FCDBV1300INMODEMV1400LEADBV1500LOCK00BV1531LOCK31BV1600LOGICAV1700LSTHOLDAV1800MINRUNAV1900MINTGTMV2000MODE00MV2031MODE31AV2100NBOILERAV2200ODTEMPAV2300ODTRIMAV2400OFFSETAV2500PDATEAV2600PRUNONAV2700PTIMEBV2800PUMPAV2900PURGEMV3000RAV3100REACTMV3200RTMODEAV3300RTTIMEAV3400SCHEDULES00AV3455SCHEDULES55BV3500SEASONBV3600SEQUENCEAV3700SETBACKAV3800SETPTMV3900SHIFTAV4000STBYDLYAV4100SYSSENAV4200SYTRIMAV4300TARGAV4400THROTTLEAV4500ZMAXTGT
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 (BSTATUS = 300-331 (one name printed for the whole range); COMERR00-31 = 600-631; LOCK00-31 = 1500-1531; MODE00-31 = 2000-2031; SCHEDULES00-55 = 3400-3455). Only the first and last printed objects of each range are listed here; the ones in between follow the same pattern.
- Per-boiler objects come in blocks of 32 (00-31); the Lead Boiler coding depends on Boiler Type (table on manual page 11).
- Variable list: manual pages 10-11.
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 HWRQ 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 HWRQ Platinum (BACnet)
How many BACnet points does the Heat-Timer HWRQ Platinum (BACnet) have?
This list has 50 BACnet objects: 26 analog values, 15 binary values, 9 multi-state values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Heat-Timer HWRQ Platinum (BACnet) BACnet points are writable?
41 of the 50 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 HWRQ Platinum (BACnet) BACnet documentation?
The source is Platinum BACnet Installation and Configuration Manual (IP and MS/TP) - HWRQ Platinum BACnet Variable List (pp. 10-11) (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 HWRQ Platinum (BACnet)?
Start with MV 2000 MODE00 (Boiler 1 mode: 1 Auto, 2 Standby, 3 Off, 4 On); BV 700 CONTROL (0 = outdoor reset, 1 = fixed setpoint); AV 3800 SETPT (Fixed setpoint (CONTROL = Set Point)); AV 2400 OFFSET (Shift of the reset curve); AV 4300 TARG (Calculated water target); AV 4100 SYSSEN (System (supply) water temperature); AV 2200 ODTEMP (Outdoor temperature); MV 300 BSTATUS (Boiler stage status; codes depend on BTYPE); BV 1500 LOCK00 (Boiler 1 lockout input (1 = L/O)); BV 600 COMERR00 (Boiler 1 communication error).
How do I check these points on the real HWRQ 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 - 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 - Steam heating control (boiler or district steam valve)
Heat-Timer SRC Platinum (BACnet)
Heat-Timer SRC Platinum steam heating control for a burner/valve or district steam valve, with the BACnet IP/MS/TP board.
Also known as: SRC, SRC Platinum, Heat-Timer SRC, Platinum BACnet
Source: Platinum BACnet Installation and Configuration Manual (IP and MS/TP) - HWRQ Platinum BACnet Variable List (pp. 10-11) · HT# 059082-00C. Object names, instances and units are reproduced as published; descriptions are our own.