2026.3.0
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Compit

The Compit integrationIntegrations connect and integrate Home Assistant with your devices, services, and more. [Learn more] allows you to integrate air conditioning, ventilation, and heating controllers with Home Assistant. You need a Compit iNext account, which you can set up at inext.compit.pl.

Prerequisites

  1. Create an account on inext.compit.pl.
  2. Configure your Compit devices in your account.

Configuration

To add the Compit hub to your Home Assistant instance, use this My button:

Manual configuration steps

If the above My button doesn’t work, you can also perform the following steps manually:

Username

The username of your Compit iNext account.

Password

The password of your Compit iNext account.

Supported devices

This integration supports most of Compit device models across thermostats, controllers, and sensors.

Thermostats

Controllers

  • AF-1 – Anti-freeze system
  • BioMax742 – Pellet boiler controller
  • BioMax775, BioMax772 – Pellet boiler controllers
  • BWC310 – Mixing valve controller
  • COMBO – Combo module
  • EL750 – Electric boiler controller
  • L2 – Floor heating controller
  • R350.CWU – Universal controller
  • R350 T3 – Universal controller
  • R350.M – Universal controller
  • R377B – Heat pump cascade controller
  • R470, R480 – Heat pump controllers
  • R490 – Heat pump controller
  • R770RS, R771RS – Boiler controllers
  • R810 – Heating circuit controller
  • R900 – Heat pump controller
  • SolarComp951 – Solar system controller
  • SolarComp971 – Solar system controller
  • SolarComp971C – Solar system controller

Sensors

  • SHC – CO₂, humidity, and temperature sensor
  • SPM – Air quality sensor

Note

When the SPM sensor is connected to a Nano Color thermostat, it is displayed as SPM - Nano Color in Home Assistant. When connected to a Nano Color 2 thermostat, it is displayed as SPM - Nano Color 2.

Supported functionality

The Compit integration provides the following entities.

Sensors

The integration provides various sensors depending on your device model. Below is a complete list of available sensors and the devices that support them.

Note

When the SPM sensor is connected to a Nano Color thermostat, it is displayed as SPM - Nano Color in Home Assistant. When connected to a Nano Color 2 thermostat, it is displayed as SPM - Nano Color 2.

Temperature sensors

  • Outdoor temperature

    • Description: Current outdoor temperature.
    • Available for devices:
      • R810 (Heating circuit controller)
      • R350 T3 (Universal controller)
      • Nano Color (Room thermostat)
      • CO2 SHC (CO₂, humidity, and temperature sensor)
      • R470 (Heat pump controller)
      • BioMax742 (Pellet boiler controller)
      • R350.CWU (Universal controller)
      • BioMax772 (Pellet boiler controller)
      • R770RS / R771RS (Boiler controllers)
      • BioMax775 (Pellet boiler controller)
      • R350.M (Universal controller)
      • Nano Color 2 (Room thermostat)
      • R900 (Heat pump controller)
      • SPM (Air quality sensor)
      • AF-1 (Anti-freeze system)

  • Boiler temperature

    • Description: Current temperature of the boiler.
    • Available for devices:
      • BioMax742 (Pellet boiler controller)
      • BioMax772 (Pellet boiler controller)
      • R770RS / R771RS (Boiler controllers)
      • BioMax775 (Pellet boiler controller)
      • EL750 (Electric boiler controller)

  • Calculated heating temperature

    • Description: Calculated target heating temperature.
    • Available for devices: R810 (Heating circuit controller), BWC310 (Mixing valve controller)

  • Target heating temperature

    • Description: Target heating temperature setting.
    • Available for devices: R810 (Heating circuit controller), BWC310 (Mixing valve controller)

  • Return circuit temperature

    • Description: Temperature of the return circuit.
    • Available for devices: R810 (Heating circuit controller), AF-1 (Anti-freeze system)

  • Calculated target temperature

    • Description: Calculated target temperature for the system.
    • Available for devices: R350 T3 (Universal controller), R350.CWU (Universal controller)

  • Circuit target temperature

    • Description: Target temperature for the heating circuit.
    • Available for devices: R350 T3 (Universal controller)

  • Mixer temperature

    • Description: Temperature at the mixer valve.
    • Available for devices: R350 T3 (Universal controller), R350.M (Universal controller)

  • Mixer temperature zone 1

    • Description: Mixer temperature for zone 1.
    • Available for devices: R770RS / R771RS (Boiler controllers)

  • Mixer temperature zone 2

    • Description: Mixer temperature for zone 2.
    • Available for devices: R770RS / R771RS (Boiler controllers)

  • Collector temperature

    • Description: Temperature of the solar collector.
    • Available for devices:
      • SolarComp 951 (Solar system controller)
      • SolarComp971 (Solar system controller)
      • SolarComp971C (Solar system controller)

  • Tank temperature T2 (bottom)

    • Description: Temperature at the bottom of the tank (sensor T2).
    • Available for devices:
      • SolarComp 951 (Solar system controller)
      • SolarComp971 (Solar system controller)
      • SolarComp971C (Solar system controller)

  • Tank temperature T3 (top)

    • Description: Temperature at the top of the tank (sensor T3).
    • Available for devices:
      • SolarComp 951 (Solar system controller)
      • SolarComp971 (Solar system controller)
      • SolarComp971C (Solar system controller)

  • Tank temperature T4

    • Description: Temperature at sensor T4 location.
    • Available for devices: SolarComp 951 (Solar system controller)

  • DHW temperature

    • Description: Domestic hot water temperature.
    • Available for devices: EL750 (Electric boiler controller)

  • DHW measured temperature

    • Description: Measured domestic hot water temperature.
    • Available for devices: R350.CWU (Universal controller), R480 (Heat pump controller)

  • Buffer return temperature

    • Description: Temperature of the buffer return.
    • Available for devices: EL750 (Electric boiler controller)

  • Lower source temperature

    • Description: Temperature of the lower heat source.
    • Available for devices: R490 (Heat pump controller)

  • Upper source temperature

    • Description: Temperature of the upper heat source.
    • Available for devices: R490 (Heat pump controller)

  • Actual buffer temperature

    • Description: Current buffer temperature.
    • Available for devices: R480 (Heat pump controller), R900 (Heat pump controller)

  • Actual DHW temperature

    • Description: Current domestic hot water temperature.
    • Available for devices: R480 (Heat pump controller), R900 (Heat pump controller)

  • Protection temperature

    • Description: Protection temperature sensor reading.
    • Available for devices: R350.M (Universal controller)

  • Buffer set temperature

    • Description: Buffer temperature setpoint.
    • Available for devices: R377B (Controller)

  • Actual heating circuit temperature zone 1

    • Description: Current temperature in heating circuit zone 1.
    • Available for devices: R900 (Heat pump controller)

  • Actual heating circuit temperature zone 2

    • Description: Current temperature in heating circuit zone 2.
    • Available for devices: R900 (Heat pump controller)

  • Actual heating circuit temperature zone 3

    • Description: Current temperature in heating circuit zone 3.
    • Available for devices: R900 (Heat pump controller)

  • Actual heating circuit temperature zone 4

    • Description: Current temperature in heating circuit zone 4.
    • Available for devices: R900 (Heat pump controller)

  • Actual upper source temperature

    • Description: Current upper source temperature.
    • Available for devices: R900 (Heat pump controller)

  • Calculated buffer temperature

    • Description: Calculated buffer temperature.
    • Available for devices: R900 (Heat pump controller)

  • Calculated DHW temperature

    • Description: Calculated domestic hot water temperature.
    • Available for devices: R900 (Heat pump controller)

  • Calculated upper source temperature

    • Description: Calculated upper source temperature.
    • Available for devices: R900 (Heat pump controller)

  • Heating target temperature zone 1

    • Description: Target heating temperature for zone 1.
    • Available for devices: R900 (Heat pump controller)

  • Heating target temperature zone 2

    • Description: Target heating temperature for zone 2.
    • Available for devices: R900 (Heat pump controller)

  • Heating target temperature zone 3

    • Description: Target heating temperature for zone 3.
    • Available for devices: R900 (Heat pump controller)

  • Heating target temperature zone 4

    • Description: Target heating temperature for zone 4.
    • Available for devices: R900 (Heat pump controller)

Air quality sensors

  • PM2.5 level

    • Description: PM2.5 particulate matter status level (normal, warning, exceeded).
    • Available for devices: Nano Color (Room thermostat), Nano Color 2 (Room thermostat)

  • PM10 level

    • Description: PM10 particulate matter status level (normal, warning, exceeded).
    • Available for devices: Nano Color (Room thermostat), Nano Color 2 (Room thermostat)

  • PM2.5 measured

    • Description: PM2.5 particulate matter concentration in µg/m³.
    • Available for devices: SPM (Air quality sensor)

  • PM10 measured

    • Description: PM10 particulate matter concentration in µg/m³.
    • Available for devices: SPM (Air quality sensor)

  • PM1 level measured

    • Description: PM1 particulate matter concentration in µg/m³.
    • Available for devices: SPM - Nano Color 2 (Air quality sensor connected to Nano Color 2)

  • PM4 level measured

    • Description: PM4 particulate matter concentration in µg/m³.
    • Available for devices: SPM - Nano Color 2 (Air quality sensor connected to Nano Color 2)

  • CO₂ level

    • Description: Carbon dioxide concentration in ppm.
    • Available for devices: SPM - Nano Color 2 (Air quality sensor connected to Nano Color 2)

  • CO₂ percent

    • Description: Carbon dioxide level as percentage.
    • Available for devices: SPM - Nano Color 2 (Air quality sensor connected to Nano Color 2)

Humidity sensors

  • Humidity
    • Description: Relative humidity in percent.
    • Available for devices: SHC (CO₂, humidity, and temperature sensor), SPM (Air quality sensor)

Power and energy sensors

  • Collector power

    • Description: Current power output from solar collector in kW.
    • Available for devices:
      • SolarComp 951 (Solar system controller)
      • SolarComp971 (Solar system controller)
      • SolarComp971C (Solar system controller)

  • Energy today

    • Description: Energy collected today in kWh.
    • Available for devices: SolarComp971 (Solar system controller), SolarComp971C (Solar system controller)

  • Energy consumption

    • Description: Current energy consumption in MW.
    • Available for devices: SolarComp 971SD1 (Solar system controller)

  • Energy total

    • Description: Total energy consumed in kWh.
    • Available for devices: R350.CWU (Universal controller)

  • Energy yesterday

    • Description: Energy consumed yesterday in kWh.
    • Available for devices: R350.CWU (Universal controller)

  • Energy smart grid yesterday

    • Description: Energy consumed via smart grid yesterday in kWh.
    • Available for devices: R350.CWU (Universal controller)

Fuel and battery sensors

  • Fuel level

    • Description: Current fuel level in percent.
    • Available for devices:
      • BioMax742 (Pellet boiler controller)
      • BioMax772 (Pellet boiler controller)
      • BioMax775 (Pellet boiler controller)
      • R770RS (Boiler controller)
      • R771RS (Boiler controller)

  • Battery level

    • Description: Battery charge level in percent.
    • Available for devices: AF-1 (Anti-freeze system)

  • Charging power

    • Description: Battery charging current in mA.
    • Available for devices: AF-1 (Anti-freeze system)

Diagnostic sensors

  • Ventilation alarm

    • Description: Ventilation system alarm status.
    • Available for devices: Nano Color (Room thermostat), Nano Color 2 (Room thermostat)

  • Ventilation gear

    • Description: Current ventilation gear setting.
    • Available for devices: Nano Color 2 (Room thermostat)

  • Alarm code

    • Description: System alarm code.
    • Available for devices: AF-1 (Anti-freeze system)

  • PK1 function

    • Description: PK1 function mode status.
    • Available for devices: Combo (Combo module)

Note

The available sensors depend on your specific Compit device configuration. Not all sensors will be available for every device.

Binary sensors

  • Airing

    • Description: Indicates whether a window is open for airing.
    • Available for devices: Nano Color 2 (Room thermostat)

  • Battery charging

    • Description: Indicates whether the battery is currently charging.
    • Available for devices: AF-1 (Anti-freeze system)

  • CO₂ alert

    • Description: Indicates whether the CO₂ level has exceeded the threshold.
    • Available for devices: SPM - Nano Color 2 (Air quality sensor connected to Nano Color 2)

  • CO₂ level

    • Description: Indicates whether the CO₂ level is problematic.
    • Available for devices: Nano Color (Room thermostat), Nano Color 2 (Room thermostat), SPM (Air quality sensor), SHC (CO₂, humidity, and temperature sensor)

  • Dust alert

    • Description: Indicates whether the dust level has exceeded the threshold.
    • Available for devices: SPM - Nano Color 2 (Air quality sensor connected to Nano Color 2)

  • Has battery

    • Description: Indicates whether the device has a battery installed.
    • Available for devices: AF-1 (Anti-freeze system)

  • Has external power

    • Description: Indicates whether the device is connected to external power.
    • Available for devices: AF-1 (Anti-freeze system)

  • Pump status

    • Description: Indicates whether the pump is currently running.
    • Available for devices: AF-1 (Anti-freeze system)

  • Temperature alert

    • Description: Indicates whether the temperature has exceeded the threshold.
    • Available for devices: SPM - Nano Color 2 (Air quality sensor connected to Nano Color 2)

Binary sensors provide status information about your Compit devices.

Climate

The climate entity reflects the current heating or cooling state and the active target temperature. Use the climate entity when you want to change the target temperature temporarily or for the current session (for example, turning up the heat for the evening). The climate entity is where you set what temperature the device is aiming for right now.

Fans

  • Ventilation
    • Description: Controls the ventilation fan. You can turn the fan on or off and set the speed.
    • Available for devices: Nano Color (Room thermostat), Nano Color 2 (Room thermostat).
    • Remarks: The fan has 5 speed levels, shown as a percentage in Home Assistant.

Numbers

Number entities let you set default temperature setpoints and other configuration values. These are the preset target temperatures used for each operating mode (such as Comfort, Eco, or Holiday). They are not used for temporary or one-off changes; for those, use the climate entity instead.

  • Comfort target temperature

    • Description: Target room temperature for comfort mode.
    • Range: 0–40 °C
    • Available for devices: Nano One (Room thermostat), Nano Color (Room thermostat), Nano Color 2 (Room thermostat)

  • Eco target temperature

    • Description: Target room temperature for eco mode.
    • Range: 0–40 °C
    • Available for devices: Nano One (Room thermostat)

  • Holiday target temperature

    • Description: Target room temperature while you are on holiday.
    • Range: 0–40 °C
    • Available for devices: Nano One (Room thermostat)

  • Eco winter target temperature

    • Description: Target room temperature for eco mode during the winter season.
    • Range: 0–40 °C
    • Available for devices: Nano Color (Room thermostat), Nano Color 2 (Room thermostat)

  • Eco cooling target temperature

    • Description: Target room temperature for eco mode during cooling.
    • Range: 0–40 °C
    • Available for devices: Nano Color (Room thermostat), Nano Color 2 (Room thermostat)

  • Out-of-home target temperature

    • Description: Target room temperature when nobody is at home.
    • Range: 0–40 °C
    • Available for devices: Nano Color (Room thermostat), Nano Color 2 (Room thermostat)

  • Constant target temperature

    • Description: Constant target temperature for the heating circuit.
    • Range: 0–95 °C
    • Available for devices: R810 (Heating circuit controller)

  • Heating constant target temperature

    • Description: Constant target temperature for the heat pump heating circuit.
    • Range: 0–95 °C
    • Available for devices: R470 (Heat pump controller)

  • Mixer target temperature

    • Description: Target temperature for the mixing valve circuit.
    • Range: 0–90 °C
    • Available for devices: R350.M (Universal controller)

  • Mixer target temperature zone 1

    • Description: Target temperature for mixing valve circuit in zone 1.
    • Range: 0–95 °C
    • Available for devices: R770RS (Boiler controller), R771RS (Boiler controller)

  • Mixer target temperature zone 2

    • Description: Target temperature for mixing valve circuit in zone 2.
    • Range: 0–95 °C
    • Available for devices: R770RS (Boiler controller), R771RS (Boiler controller)

  • Boiler target temperature

    • Description: Target temperature for the boiler.
    • Range: 0–95 °C
    • Available for devices: BioMax742 (Pellet boiler controller), EL750 (Electric boiler controller)

  • Boiler constant target temperature

    • Description: Constant target temperature for the boiler.
    • Range: 0–90 °C
    • Available for devices: BioMax742 (Pellet boiler controller), BioMax772 (Pellet boiler controller), BioMax775 (Pellet boiler controller)

Selects

  • Language

    • Description: Language of the device interface.
    • Options: Polish, English
    • Available for devices: Nano Color (Room thermostat), Nano Color 2 (Room thermostat), Nano One (Room thermostat)

  • Aero by pass

    • Description: Bypass mode for ventilation systems.
    • Options: Off, Auto, On
    • Available for devices: Nano Color (Room thermostat), Nano Color 2 (Room thermostat)

  • Nano work mode

    • Description: Operating mode for the thermostat.
    • Options: Manual 3, Manual 2, Manual 1, Manual 0, Schedule, Christmas, Out of home
    • Available for devices: Nano One (Room thermostat)

  • Operating mode

    • Description: Primary operating mode of the device.
    • Options: Disabled, Eco, Hybrid (for R900, R490, R480); Disabled, Auto, Eco (for R470)
    • Available for devices: R900 (Heat pump controller), R490 (Heat pump controller), R470 (Heat pump controller), R480 (Heat pump controller)

  • Work mode

    • Description: Seasonal operating mode.
    • Options: Winter, Summer, Cooling
    • Available for devices: R490 (Heat pump controller)

  • Heating source of correction

    • Description: Source for heating temperature corrections.
    • Options: No corrections, Schedule, Thermostat, Nano nr 1, Nano nr 2, Nano nr 3, Nano nr 4, Nano nr 5
    • Available for devices: R470 (Heat pump controller), BioMax742 (Pellet boiler controller)

  • SolarComp operating mode

    • Description: Operating mode for solar controllers.
    • Options: Auto, De-icing, Holiday, Disabled
    • Available for devices: SolarComp951 (Solar system controller), SolarComp971 (Solar system controller) and SolarComp971C (Solar system controller)

  • Mixer mode zone 1

    • Description: Zone 1 mixing valve operating mode.
    • Options: Disabled, Without thermostat, Schedule, Thermostat, Nano nr 1, Nano nr 2, Nano nr 3, Nano nr 4, Nano nr 5
    • Available for devices: BioMax775 (Pellet boiler controller), BioMax772 (Pellet boiler controller)

  • Mixer mode zone 2

    • Description: Zone 2 mixing valve operating mode.
    • Options: Disabled, Without thermostat, Schedule, Thermostat, Nano nr 1, Nano nr 2, Nano nr 3, Nano nr 4, Nano nr 5
    • Available for devices: BioMax775 (Pellet boiler controller), BioMax772 (Pellet boiler controller)

  • Mixer mode

    • Description: Mixing valve operating mode.
    • Options: No corrections, Schedule, Thermostat, Nano nr 1, Nano nr 2, Nano nr 3, Nano nr 4, Nano nr 5
    • Available for devices: R350 T3 (Universal controller), BioMax742 (Pellet boiler controller)

  • DHW circulation

    • Description: Domestic hot water circulation mode.
    • Options: Disabled, Constant, Schedule
    • Available for devices: BioMax775 (Pellet boiler controller), BioMax742 (Pellet boiler controller), BioMax772 (Pellet boiler controller)

  • Buffer mode

    • Description: Buffer tank operating mode.
    • Options: Schedule, Manual, Disabled
    • Available for devices: R480 (Heat pump controller)

Water heaters

  • Water heater
    • Description: Controls the domestic hot water parameters.
    • Available for devices: BioMax742, BioMax772, BioMax775, EL750, R350.CWU, R377B, R470, R480, R490, R770RS, R771RS, R900, SolarComp951, SolarComp971, SolarComp971C
    • Remarks:
      • Solar controllers and R350.CWU only support setting the target temperature.
      • Other devices also support On/Off and operation modes.
        • State off maps to off in Compit
        • State performance maps to on in Compit
        • State eco maps to schedule in Compit
      • Solar controllers don’t support current temperature attribute.

Removing the integration

This integration follows standard integration removal. No extra steps are required.

To remove an integration instance from Home Assistant

  1. Go to Settings > Devices & services and select the integration card.
  2. From the list of devices, select the integration instance you want to remove.
  3. Next to the entry, select the three dots menu. Then, select Delete.