Integrate Danfoss Air HRV with Home Assistant

S.C.O.R.E. → Convenience → DeviceControl

Overview

The integration of Danfoss Air HRV support allows homeowners to manage their heat recovery ventilation system seamlessly through Home Assistant. This capability enhances indoor air quality and energy efficiency by automating ventilation control based on environmental conditions.

Benefits

• Improved indoor air quality by regulating ventilation automatically
• Energy savings through optimized use of HVAC systems
• Convenient control via Home Assistant interface

Intent

This capability aims to provide homeowners with a user-friendly interface to manage their Danfoss Air HRV system. The outcome is an automated and efficient ventilation system that reacts to real-time conditions, ensuring optimal air circulation.

Preconditions

• Home Assistant installed and configured.
• Danfoss Air HRV system connected to the home network.
• Proper API access and permissions set for integration.
• Integration available and authenticated: Zigbee2MQTT.
• Device installed and reachable: HVAC and Climate Control.

Actors

• Homeowner managing home climate
• Family members enjoying improved air quality
• Guests benefiting from a comfortable environment

Trigger

The capability is triggered by changes in indoor air quality sensors or user-defined schedules within Home Assistant.

Workflow Diagram

flowchart TD
    A[Change in Air Quality] -->|check| B{{Is HRV Active?}}
    B -->|Yes| C[Maintain Current Settings]
    C --> D[Continue Operation]
    B -->|No| E[Activate HRV]
    E --> D[Adjust Ventilation Settings]

Workflow Description

1. Monitor Air Quality

Sensors continuously monitor indoor air quality levels, such as CO2 and humidity.

2. Evaluate HRV Status

The system checks if the HRV system is currently active based on predefined conditions.

3. Adjust Settings

If the HRV is inactive and air quality is poor, the system activates it and adjusts the ventilation settings.

4. User Notification

Homeowners receive notifications regarding air quality improvements and HRV status through the Home Assistant app.

5. Log Data

The system logs air quality data and HRV performance for future analysis and adjustments.

Postconditions

After the capability completes, the Danfoss Air HRV operates optimally, ensuring improved indoor air quality and enhanced energy efficiency.

Optional Enhancements

• Integrate with Smart Home routines to automate HRV based on occupancy
• Add voice control via Google Home or Alexa
• Create a dashboard widget for real-time air quality monitoring

Recommended Components

Source Examples

• 2026.1: Home is where the dashboard is ?? – Home Assistant (homeassistant)