As the colder months approach, maintaining a comfortable indoor environment becomes crucial. Our home ventilation system, while effective, often introduces cold air, affecting indoor humidity levels. I recently embarked on a project to automate our Helios Rohr-Radialventilator InlineVent RR 125 C, aiming to enhance comfort and efficiency.
Currently, the system runs continuously on low speed, switching to high when the bathroom light is on for over three minutes. While functional, this setup lacks the seasonal adjustments we desired. Our goal was to automate the ventilation to operate on low speed during specific times in winter and summer, reducing cold drafts and unwanted odors.
After some research, I decided to integrate a Shelly 1 PM into the system. The plan was to control the low-speed motor using the Shelly, while retaining the high-speed functionality through the existing Siemens LOGO! controller. This approach would allow us to schedule the ventilation based on the season without altering the emergency high-speed feature.
The installation process involved connecting the Shelly to the ventilation system’s low-speed circuit. I faced some initial challenges with the wiring, but consulting the Shelly documentation and reaching out to the community for advice proved invaluable. The community’s support was fantastic, providing clarity and confidence in the setup.
Once everything was connected, configuring the Shelly through the app was straightforward. I set up schedules to turn the ventilation on during the day in winter and at night in summer, ensuring optimal airflow without drafts. The result has been a more comfortable home environment, with reduced energy waste and improved air quality.
This project has been a rewarding experience, demonstrating the potential of smart home devices to enhance everyday living. I encourage anyone considering similar automation to explore the possibilities with devices like the Shelly 1 PM. The sense of accomplishment and the tangible benefits make the effort well worth it.