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Energy recovery ventilation unit (residential AHU) · BACnet points list
Flexit Nordic series (Nordic Basic BACnet list) BACnet points list
Updated 12 November 2026
Flexit Nordic units have BACnet IP built in (Siemens Climatix S300 controller, POS3.6715). Flexit's basic list has 66 rows: ventilation mode commands and status, setpoints, timers for fireplace and rapid ventilation, sensor readings, outputs and A/B alarm handling. Several rows give two or three instance numbers because the object moves with the configured input or output terminal; each printed instance is listed here.
This page lists 85 BACnet objects for the Flexit Nordic series (Nordic Basic BACnet list) — 16 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Flexit’s own free documentation, linked below.
- Manufacturer
- Flexit
- Model
- Nordic series (Nordic Basic BACnet list)
- Equipment
- Energy recovery ventilation unit (residential AHU)
- Equipment type
- Rooftop units, AHUs & DOAS
- BACnet objects
- 85 (16 writable)
- Transport
- BACnet IP
- Firmware
- Application APTV 2.419 and above (per the Flexit GO BACnet guide)
- Default device instance
- 2
- Also known as
- Flexit Nordic, Nordic S2, Nordic S3, Nordic S4, Nordic CL2, Nordic CL3, Nordic CL4, Nordic KS, Flexit GO, BACnet Basic list - Nordic, Climatix S300 POS3.6715
- Source document
- BACnet Basic list - Nordic · rev. 2020-10
Reference only, provided as-is: verify against Flexit’s current documentation and the live device before use. Not official Flexit information. Terms of use.
BMS integration notes: Flexit Nordic series (Nordic Basic BACnet list)
Set BV 50 Comfort button to 1 so the unit follows MV 42 Room operating mode, then write MV 42 (Stop/Away/Home/High). Write the home and away temperature setpoints (instance depends on supply or extract control). Read MV 361 for the present mode, the temperatures and fan speeds, and the A/B alarm indication points; MV 344 acknowledges or resets A alarms.
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 50 | Comfort button | Must be 1 for MV 42 to take effect | Command |
| MV 42 | Room operating mode | Mode command: 1 Stop, 2 Away, 3 Home, 4 High | Command |
| AV 1994 | Setpoint temperature when home | Home setpoint (supply air control default) | Write |
| MV 344 | A-Alarm acknowledgement | Write 2 to acknowledge, 3 to reset A alarms | Write |
| MV 361 | Heat recovery ventilation state | Present ventilation mode | Read |
| AI 4 | Supply air temperature | Supply air temperature | Read |
| AI 1 | Outside air temperature | Outdoor air temperature | Read |
| AI 59 | Extract air temperature | Extract (return) air temperature | Read |
| MV 343 | A-Alarm indication | A alarm active when 2 | Read |
| MV 340 | B-Alarm indication | B alarm active when 2 | Read |
Enable & remote start
MV 42 Room operating mode only works when BV 50 Comfort button is 1; with BV 50 at 0 the unit goes to Away after the AWAY delay (PIV 318). A ventilation mode wired to a digital input overrides MV 42.
Network setup
- BACnet IP is built in; default device ID is 2.
- Change BACnet settings in the Flexit GO app as installer (Other > Installer > BACnet settings); the unit restarts to apply them.
- Network settings can also be written over BACnet on the network port object (device instance, IP, UDP port); set property 4894 to 1 to save.
Watch out for
- Flexit says to write commandable objects at priority 13 only; other priorities can leave the unit out of control.
- The home/away setpoint instance depends on temperature control mode: 1994/1985 for supply air control, 2070/1988 for extract air cascade.
- Input and output objects change instance with the terminal they are configured on.
Flexit Nordic series (Nordic Basic BACnet list) 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 | |||||
|---|---|---|---|---|---|---|
| BVmin | 50 | Comfort button | 0 = away after delay, 1 = follow room operating mode | Command | 0=Inactive, 1=Active | |
| MVmin | 361 | Heat recovery ventilation state | Present ventilation mode | Read | 1=Off, 2=Away, 3=Home, 4=High, 5=Fume hood, 6=Fireplace, 7=Temporary high | |
| MVmin | 42 | Room operating mode | Ventilation mode command; needs BV 50 = 1 | Command | 1=Stop, 2=Away, 3=Home, 4=High | |
| AV | 1985 | Setpoint temperature when away | Instance used with Sup (default); Range 10 to 30 | °C | Write | |
| AV | 1988 | Setpoint temperature when away | Instance used with Ext; Range 10 to 30 | °C | Write | |
| AVmin | 1994 | Setpoint temperature when home | Instance used with Sup (default); Range 10 to 30 | °C | Write | |
| AV | 2070 | Setpoint temperature when home | Instance used with Ext; Range 10 to 30 | °C | Write | |
| AV | 2038 | Remaining time of fireplace ventilation | Range 0 to 360 | min | Read | |
| AV | 2031 | Remaining time of rapid ventilation | Range 0 to 360 | min | Read | |
| PIV | 270 | Fireplace ventilation runtime | Range 0 to 360 | min | Write | |
| PIV | 293 | Rapid ventilation runtime | Range 1 to 360 | min | Write | |
| MV | 360 | Trigger temporary fireplace ventilation | Write | 1=Ready, 2=Trigger | ||
| MV | 357 | Trigger temporary rapid ventilation | Write | 1=Ready, 2=Trigger | ||
| PIV | 318 | AWAY delay timer duration | Range 0 to 600 | min | Write | |
| AV | 2096 | Room air quality 1 | Range 0 to 2000 | ppm | Read | |
| AI | 12 | Exhaust air fan speed feedback | Range 0 to 18000 | rpm | Read | |
| AI | 5 | Supply air fan speed feedback | Range 0 to 18000 | rpm | Read | |
| AI | 50 | Relative humidity for extract air | Humidity sensor on X3; Range 0 to 100 | % | Read | |
| AI | 72 | Extract air pressure | Range -3000 to 3000 | Pa | Read | |
| AI | 73 | Supply air pressure | Range -3000 to 3000 | Pa | Read | |
| AI | 11 | Exhaust air temperature | Range -50 to 80 | °C | Read | |
| AImin | 59 | Extract air temperature | Range -50 to 80 | °C | Read | |
| AI | 31 | Frost protection temp.for heating coil | Range -3000 to 3000 | Pa | Read | |
| AImin | 1 | Outside air temperature | Range -50 to 50 | °C | Read | |
| AI | 75 | Room temperature | Range 0 to 50 | °C | Read | |
| AV | 2093 | Room air humidity 1 | Range 0 to 100 | % | Read | |
| AV | 2094 | Room air humidity 2 | Range 0 to 100 | % | Read | |
| AV | 2095 | Room air humidity 3 | Range 0 to 100 | % | Read | |
| AI | 50 | Room air quality input value (CU) | Air quality sensor on X3; Range 0 to 2000 | ppm | Read | |
| AImin | 4 | Supply air temperature | Range -50 to 80 | °C | Read | |
| BI | 22 | Away | Instance used with DI1 | Read | 0=Inactive, 1=Active | |
| BI | 29 | Away | Instance used with DI2 | Read | 0=Inactive, 1=Active | |
| BI | 31 | Away | Instance used with X8 (default) | Read | 0=Inactive, 1=Active | |
| BI | 87 | CO detector | Read | 0=Inactive, 1=Active | ||
| BI | 32 | Emergency off | Read | 0=Inactive, 1=Active | ||
| BI | 18 | Fire damper feedback | Instance used with DI1 | Read | 0=Inactive, 1=Active | |
| BI | 25 | Fire damper feedback | Instance used with DI2 | Read | 0=Inactive, 1=Active | |
| BI | 92 | Fire damper feedback | Instance used with X8 | Read | 0=Inactive, 1=Active | |
| BI | 16 | Fume hood ventilation input | Instance used with DI1 | Read | 0=Inactive, 1=Active | |
| BI | 23 | Fume hood ventilation input | Instance used with DI2 (default) | Read | 0=Inactive, 1=Active | |
| BI | 493 | Fume hood ventilation input | Instance used with CI79 | Read | 0=Inactive, 1=Active | |
| BI | 17 | Fireplace ventilation input | Instance used with DI1 | Read | 0=Inactive, 1=Active | |
| BI | 24 | Fireplace ventilation input | Instance used with DI2 | Read | 0=Inactive, 1=Active | |
| BI | 33 | Heating coil overtemperature detector | Read | 0=Inactive, 1=Active | ||
| BI | 82 | High | Instance used with DI1 (default) | Read | 0=Inactive, 1=Active | |
| BI | 83 | High | Instance used with DI2 | Read | 0=Inactive, 1=Active | |
| BI | 21 | Home | Instance used with DI1 | Read | 0=Inactive, 1=Active | |
| BI | 28 | Home | Instance used with DI2 | Read | 0=Inactive, 1=Active | |
| BI | 30 | Home | Instance used with X8 | Read | 0=Inactive, 1=Active | |
| BI | 88 | Smoke/fire exhaust fan operation | Read | 0=Inactive, 1=Active | ||
| BI | 90 | Smoke/fire fan off operation | Read | 0=Inactive, 1=Active | ||
| BI | 91 | Smoke/fire supply & exhaust fan op. | Read | 0=Inactive, 1=Active | ||
| BI | 89 | Smoke/fire supply fan operation | Read | 0=Inactive, 1=Active | ||
| BI | 20 | Stop | Instance used with DI1 | Read | 0=Inactive, 1=Active | |
| BI | 27 | Stop | Instance used with DI2 | Read | 0=Inactive, 1=Active | |
| AO | 34 | Cooling coil valve position | Range 0 to 100 | % | Read | |
| AO | 4 | Exhaust air fan speed | Range 0 to 100 | % | Read | |
| AO | 3 | Supply air fan speed | Range 0 to 100 | % | Read | |
| AO | 29 | Heating coil electric position | Range 0 to 100 | % | Read | |
| AO | 12 | Heating coil valve position | Range 0 to 100 | % | Read | |
| AO | 0 | Rotary heat exchanger speed | Range 0 to 100 | % | Read | |
| BO | 64 | Cooling coil pump command | Instance used with Q1 | Read | 0=Inactive, 1=Active | |
| BO | 68 | Cooling coil pump command | Instance used with Q2 | Read | 0=Inactive, 1=Active | |
| BO | 57 | Cooling coil pump command | Instance used with Q3 | Read | 0=Inactive, 1=Active | |
| BO | 18 | Outside air damper command | Instance used with Q1 (default) | Read | 0=Inactive, 1=Active | |
| BO | 65 | Outside air damper command | Instance used with Q2 | Read | 0=Inactive, 1=Active | |
| BO | 69 | Outside air damper command | Instance used with Q3 | Read | 0=Inactive, 1=Active | |
| BO | 19 | Fire damper command | Instance used with Q1 | Read | 0=Inactive, 1=Active | |
| BO | 66 | Fire damper command | Instance used with Q2 | Read | 0=Inactive, 1=Active | |
| BO | 46 | Fire damper command | Instance used with Q3 | Read | 0=Inactive, 1=Active | |
| BO | 58 | Heating coil pump command | Read | 0=Inactive, 1=Active | ||
| MVmin | 344 | A-Alarm acknowledgement | Acknowledge or reset A alarms | Write | 1=Ready, 2=Acknowledge, 3=Reset | |
| AV | 8 | A-Alarm code | Range 0 to 9999 | Read | ||
| MVmin | 343 | A-Alarm indication | Read | 1=Normal, 2=Alarm | ||
| MV | 7 | A-Alarm state | Read | 1=Acknowledged, unlocked, 2=Unacknowledged, 3=Locked | ||
| MV | 341 | B-Alarm acknowledgement | Acknowledge B alarms | Write | 1=Ready, 2=Acknowledge | |
| AV | 130 | B-Alarm code | Range 0 to 9999 | Read | ||
| MVmin | 340 | B-Alarm indication | Read | 1=Normal, 2=Alarm | ||
| MV | 18 | B-Alarm state | Read | 1=Acknowledged, unlocked, 2=Unacknowledged, 3=Locked | ||
| AV | 2025 | Display fault list | Range 0 to 10000 | Read | ||
| AV | 2026 | Fault counter | Range 0 to 2000 | Read | ||
| AV | 2027 | Fault list number | Range 1 to 10000 | Read | ||
| MV | 342 | Fault list operation | Write | 1=Ready, 2=Next fault, 3=Refresh | ||
| AV | 285 | Operating time filter | Range 0 to 99999 | h | Write | |
| AV | 286 | Operating time for filter replacement | Range 0 to 99990 | h | Write |
No points match these filters.
Object ID lookup: Flexit Nordic series point IDs by name
BV50Comfort buttonMV361Heat recovery ventilation stateMV42Room operating modeAV1985Setpoint temperature when awayAV1988Setpoint temperature when awayAV1994Setpoint temperature when homeAV2070Setpoint temperature when homeAV2038Remaining time of fireplace ventilationAV2031Remaining time of rapid ventilationPIV270Fireplace ventilation runtimePIV293Rapid ventilation runtimeMV360Trigger temporary fireplace ventilationMV357Trigger temporary rapid ventilationPIV318AWAY delay timer durationAV2096Room air quality 1AI12Exhaust air fan speed feedbackAI5Supply air fan speed feedbackAI50Relative humidity for extract airAI72Extract air pressureAI73Supply air pressureAI11Exhaust air temperatureAI59Extract air temperatureAI31Frost protection temp.for heating coilAI1Outside air temperatureAI75Room temperatureAV2093Room air humidity 1AV2094Room air humidity 2AV2095Room air humidity 3AI50Room air quality input value (CU)AI4Supply air temperatureBI22AwayBI29AwayBI31AwayBI87CO detectorBI32Emergency offBI18Fire damper feedbackBI25Fire damper feedbackBI92Fire damper feedbackBI16Fume hood ventilation inputBI23Fume hood ventilation inputBI493Fume hood ventilation inputBI17Fireplace ventilation inputBI24Fireplace ventilation inputBI33Heating coil overtemperature detectorBI82HighBI83HighBI21HomeBI28HomeBI30HomeBI88Smoke/fire exhaust fan operationBI90Smoke/fire fan off operationBI91Smoke/fire supply & exhaust fan op.BI89Smoke/fire supply fan operationBI20StopBI27StopAO34Cooling coil valve positionAO4Exhaust air fan speedAO3Supply air fan speedAO29Heating coil electric positionAO12Heating coil valve positionAO0Rotary heat exchanger speedBO64Cooling coil pump commandBO68Cooling coil pump commandBO57Cooling coil pump commandBO18Outside air damper commandBO65Outside air damper commandBO69Outside air damper commandBO19Fire damper commandBO66Fire damper commandBO46Fire damper commandBO58Heating coil pump commandMV344A-Alarm acknowledgementAV8A-Alarm codeMV343A-Alarm indicationMV7A-Alarm stateMV341B-Alarm acknowledgementAV130B-Alarm codeMV340B-Alarm indicationMV18B-Alarm stateAV2025Display fault listAV2026Fault counterAV2027Fault list numberMV342Fault list operationAV285Operating time filterAV286Operating time for filter replacement
Integration notes
- Rows that depend on wiring (DI1, DI2, X8, Q1-Q3, CI79) or on temperature control mode (supply air vs extract air cascade) are listed once per printed instance; the description says which. Instances marked default in the list are noted.
- AI 50 is printed twice: extract air humidity or room air quality, depending on what is configured on X3.
- Many objects exist only when the matching option is configured (water or electric heating, cooling, duct pressure fan control, wireless room sensors CI75/CI76/CI77).
- AI 31 (frost protection temperature) is printed with unit Pa and a -3000 to 3000 range in the source; kept as printed.
- The object list is a spreadsheet; it has no document number. Network settings come from Flexit's GO BACnet guide 118278-02 (2025-04).
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 Nordic series (Nordic Basic BACnet list) 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 Flexit Nordic series (Nordic Basic BACnet list)
How many BACnet points does the Flexit Nordic series (Nordic Basic BACnet list) have?
This list has 85 BACnet objects: 12 analog inputs, 6 analog outputs, 17 analog values, 25 binary inputs, 10 binary outputs, 1 binary value, 11 multi-state values, 3 positive integer values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Flexit Nordic series (Nordic Basic BACnet list) BACnet points are writable?
16 of the 85 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 Flexit Nordic series (Nordic Basic BACnet list) BACnet documentation?
The source is BACnet Basic list - Nordic, revision 2020-10, published free by Flexit at https://flexitwebsiteprodstorage.blob.core.windows.net/product-documents/2963.
What are the minimum BACnet points to integrate the Flexit Nordic series (Nordic Basic BACnet list)?
Start with BV 50 Comfort button (Must be 1 for MV 42 to take effect); MV 42 Room operating mode (Mode command: 1 Stop, 2 Away, 3 Home, 4 High); AV 1994 Setpoint temperature when home (Home setpoint (supply air control default)); MV 344 A-Alarm acknowledgement (Write 2 to acknowledge, 3 to reset A alarms); MV 361 Heat recovery ventilation state (Present ventilation mode); AI 4 Supply air temperature (Supply air temperature); AI 1 Outside air temperature (Outdoor air temperature); AI 59 Extract air temperature (Extract (return) air temperature); MV 343 A-Alarm indication (A alarm active when 2); MV 340 B-Alarm indication (B alarm active when 2).
How do I enable BMS control of the Flexit Nordic series (Nordic Basic BACnet list)?
MV 42 Room operating mode only works when BV 50 Comfort button is 1; with BV 50 at 0 the unit goes to Away after the AWAY delay (PIV 318). A ventilation mode wired to a digital input overrides MV 42.
How do I check these points on the real Nordic series (Nordic Basic BACnet list)?
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 Flexit BACnet points lists
Source: BACnet Basic list - Nordic · rev. 2020-10. Object names, instances and units are reproduced as published; descriptions are our own.