Configure your Shelly Wall Display for summer mode with hydrothermal control

To configure your Shelly Wall Display for summer mode with hydrothermal control, you need to adjust several parameters so the system operates in cooling mode instead of heating. This typically involves changing the "Operating Mode" and adjusting the setpoints (target temperatures) for cooling.

Configuration is primarily done through the Shelly Wall Display's user interface, either directly on the display or, more commonly, through the Shelly Cloud app on your smartphone.

Important premises:

  • Your hydrothermal system must be reversible (that is, capable of producing cold as well as heat).
  • The Shelly Wall Display must be properly connected and configured with your hydrothermal system (probably through a Shelly 1, Shelly Pro 1, or similar module, which controls the heat pump/zone valve).

General steps:

  1. Access the Shelly Wall Display Interface:

    • Directly on the screen: Navigate device menus using touch controls.
    • From the Shelly Cloud app: Open the app, select your Shelly Wall Display from the list of devices. This is the most convenient and visual way.
  2. Identify and Change the Mode of Operation:

    • Look for an option in the settings menus that says something like "Operation Mode," "Heating/Cooling Mode," or similar.
    • Change the mode from "Heating" to "Cooling" or "Cold".
      • On some thermostats, this might be a "Heat/Cool" option where you select the active mode.
      • In others, it might be a deeper adjustment in the "System Type" settings.
  3. Adjust Set Points (Target Temperatures) for Summer:

    • Once in cooling mode, the temperature setpoints will be interpreted differently. Now, you'll want the system to turn on when the ambient temperature exceeds a threshold.
    • Set your desired comfort temperature for cooling. For example, if you had 21°C for heating in winter, you might want 24°C or 25°C for cooling in summer.
    • Consider the "off" and "on" set points (Hysteresis/Differential):
      • If you want 24°C, the system should turn on cooling when the temperature rises to, say, 24.5°C, and turn it off when it drops to 23.5°C (with a 1°C differential). Check how your Shelly Wall Display configures this differential for cooling. Make sure it's not using the heating logic (turn on if it drops, turn off if it rises).
  4. Check Relay Control Logic (Whether manual or advanced):

    • If your Shelly Wall Display does not directly control the hydrothermal system but sends commands to another Shelly (for example, a Shelly 1 switching the heat pump), make sure the "Action" or "Output" configured for "Cooling" mode is correct to activate your cooling system.
    • In heating mode, the Shelly can be set to "close contact if the temperature is lower than the threshold."
    • In cooling mode, the logic should be "close contact if the temperature is higher than the threshold."
    • Smart thermostats like the Shelly Wall Display typically handle this automatically when changing modes, but it's a good idea to double-check if you're having trouble.
  5. Schedule Programming (Optional):

    • If you use schedules for heating, consider whether you want a different schedule for cooling (for example, cooling more at night or during daylight hours).
  6. Save and Test:

    • Make sure to save all changes.
    • Increase the room temperature (for example, by opening a window if it is safe and the outside temperature is high) or temporarily adjust the set point to a lower temperature than the current one to verify that the cooling system turns on.
    • Monitors system temperature and operation.

Additional Considerations:

  • Sleep/Vacation Feature: If you're going on vacation, you can set a higher "anti-heat" temperature to save energy without causing your home to overheat.
  • Sensor Integration: If you have temperature sensors outside or in other rooms, make sure the Shelly Wall Display is using the correct sensor for the area.

It's always a good idea to consult the manual for your specific Shelly Wall Display model, as exact option names and navigation may vary. The Shelly Cloud app is your best friend for these settings.

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