Climaveneta iMXW / iLife2 — Home Assistant Integration

Custom integration for Home Assistant to control Mitsubishi-Climaveneta fancoils via Modbus RTU (RS-485).

Supported models

Brand	Model	Protocol	Config type	Status
Climaveneta	i-MXW	Modbus RTU	i-MXW	Tested ✓
Climaveneta	iLife2	Modbus RTU	iLife2	Tested ✓
Sabiana	Carisma Fly	Modbus RTU	i-MXW	Not tested — likely compatible
Innova	AirLeaf	Modbus RTU	iLife2	Not tested — likely compatible

OEM compatibility note

Sabiana and Innova appear to use the same control boards and Modbus protocol as Climaveneta (OEM relationship). The Sabiana Carisma Fly series shares the same i-MXW controller board, while the Innova AirLeaf series shares the same iLife2 controller board.

This integration has only been tested on Climaveneta hardware. However, since the electronics and protocol are identical, it should work on Sabiana and Innova units as well. If you have one of these devices and can confirm compatibility, please open an issue to let us know!

Hardware requirements

• RS-485 adapter (e.g. USB-to-RS485 or Raspberry Pi HAT)
• Wired connection to the fancoil Modbus bus
• Each fancoil must have a unique Modbus slave ID

Installation

HACS (recommended)

1. Open HACS in Home Assistant
2. Click Integrations → ⋮ → Custom repositories
3. Add https://github.com/Tadiern/climaveneta as Integration
4. Search for "Climaveneta" and install
5. Restart Home Assistant

Manual

1. Copy the custom_components/climaveneta folder to your Home Assistant config/custom_components/ directory
2. Restart Home Assistant

Configuration

1. Go to Settings → Devices & Services → Add Integration
2. Search for Climaveneta
3. Enter:
   • Serial device path (e.g. /dev/ttyAMA0)
   • Modbus slave ID (1–255)
   • Fancoil model (i-MXW or iLife2)
   • Name for the device

Exposed entities

Climate

• HVAC modes: Off, Heat, Cool, Heat/Cool (iLife2), Fan Only (i-MXW)
• Fan modes: Auto, Low, Medium, High
• Preset modes (i-MXW only): None, Eco, Away

Sensors

Sensor	i-MXW	iLife2	Unit
Actual Temperature	✓	✓	°C
Water Temperature	✓	✓	°C
Real Setpoint		✓	°C
Motor Speed Set		✓	—
Min/Max Fan Voltage (winter/summer)	✓		V
Min/Max Water Temperature	✓	✓	°C
Setpoint Hysteresis	✓		°C
Dead Zone Center/Range	✓		°C
T1 Compensation Delta	✓		°C
T1 Compensation Base (summer/winter)	✓		°C
Anti-stratification Wait Time	✓		min
Anti-stratification Time (summer/winter)	✓		sec
Modbus Address		✓	—

Binary sensors

Sensor	i-MXW	iLife2	Description
Pump Relay	✓	✓	Water pump request
Alarm flags		✓	Communication, Air, H2, H4, Filter, Motor, etc.

Services

Service	Description
climaveneta.set_actual_temperature	Send an external temperature reading to the i-MXW (for external thermostat compensation)

Development

python -m pip install -r requirements_dev.txt
python -m pytest -q
python -m ruff check .

License

MIT