Guide for building a home ventilation device controller.

Job ID: 36774969

Budget: €12 – €18 EUR

Hello

I have Zehnder ComfoAir 350 home ventilation system. To reduce energy consumption I would like to control the fan speed of the ventilation system from my HomeAssistant.

At the moment the ventilation unit can be controlled via a manual switch that has 3 speed settings. The manual switch that I have: https://www.ventilationland.co.uk/product/17829/zehnder-stork-three-position-switch-sa-1-3v-built-in.html

The manual for the ventilation unit: https://comfortsystems.ee/wp-content/uploads/2020/03/ComfoD-350.pdf

I would like some help to control the 3 speed manual switch via a EspHome board.

I am comfortable with soldering and electronic assembly.