ClimateSync configuration tool to manage on/off hysteresis for various heating systems, such as wet or electric floor heating, radiators, and trench heaters.
Introduction to On/Off Hysteresis
The on/off hysteresis feature allows you to control exactly when heating activates and deactivates in relation to a specific set point. This is a zone-by-zone setting, meaning you can customize the behavior for every individual room or area controlled by a ClimateSync relay.
How it Works: The Basic Setup
By adjusting the “on” and “off” settings, you define the temperature range for heating:
On-Hysteresis: Determines how many degrees below the set point the heating kicks in.
Off-Hysteresis: Determines at what temperature the heating stops.
Example: If the set point is 23°C, setting the “on” hysteresis to 1° below and “off” to 0° means the heat starts at 22°C and stops exactly at 23°C.
Advanced Scenarios and Customization
The tool allows for specific adjustments based on the unique thermal properties of a site:
Preventing Overheating: In some locations, underfloor water is kept at very high temperatures. Even after the valve closes, the floor continues to emit heat, causing the room to overshoot the set point. To solve this, you can set the off-hysteresis to a negative value (e.g., -0.5°). This stops the heating early (at 22.5° for a 23° set point), allowing the residual heat in the floor to bring the room naturally to the desired temperature.
Managing Rapid Heat Loss: If a building loses heat quickly, you may want a more balanced approach. In this case, you can set the heating to stop half a degree above the set point and start half a degree below. This ensures the room stays warmer for longer to compensate for the fast cooling.
Finalizing and Applying Settings
To ensure your configuration is successful, follow these two critical steps:
Refresh Values: After making changes, click “refresh values” and allow a minute for the system to load. This allows you to verify that all settings are exactly as you intended.
Reboot the Device: Settings will not take effect in actual operation until the ClimateSync device is rebooted. You can do this by:
Manually cycling the power to the device.
Using the “reboot and reload” option within the terminal.
Once the reboot is complete, you can review the settings across different zones one last time to ensure everything is correct.
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