Setting up your Shelly Wall Display for summer mode with hydrothermal control

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

The configuration is done mainly through the Shelly Wall Display's user interface, either directly on the screen or, more commonly, through the Shelly Cloud app on your smartphone.

Important prerequisites:

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

General steps:

1. Access the Shelly Wall Display interface:

   • Directly on the screen: Navigate the device menus using the touch controls.
   • From the Shelly Cloud app: Open the app, select your Shelly Wall Display in the device list. This is the most convenient and visual way.

2. Identify and change the Operation Mode:

   • 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".
     • On some thermostats, this might be a "Heat/Cool" option where you select the active mode.
     • On others, it might be a deeper setting in the "System type" configuration.

3. Adjust the Setpoints (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 the desired comfort temperature for cooling. For example, if in winter you had 21°C for heating, in summer you might want 24°C or 25°C for cooling.
   • Consider the "off" and "on" setpoints (Hysteresis/Differential):
     • If you want 24°C, the system should turn on cooling when the temperature rises to, for example, 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 sets 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 the Relay Control Logic (If manual or advanced):

   • If your Shelly Wall Display doesn't control the hydrothermal system directly but sends commands to another Shelly (for example, a Shelly 1 that switches the heat pump), make sure the "Action" or "Output" configured for "Cooling" mode is the correct one to activate your cooling system.
   • In heating mode, the Shelly may be set to "close contact if the temperature is below the threshold".
   • In cooling mode, the logic must be "close contact if the temperature is above the threshold".
   • Normally, smart thermostats like the Shelly Wall Display handle this automatically when you change the mode, but it's good to check if you run into problems.

5. Scheduling (Optional):

   • If you use schedules for heating, consider whether you want a different schedule for cooling (for example, cooling more at night or during sunny hours).

6. Save and Test:

   • Make sure to save all the changes.
   • Raise the ambient temperature (for example, by opening a window if it's safe and the outdoor temperature is high) or temporarily set the setpoint to a temperature lower than the current one to verify that the cooling system turns on.
   • Monitor the temperature and the system's operation.

Additional Considerations:

• Away/Vacation Function: If you go on vacation, you can set a higher "anti-heat" temperature to save energy without the house overheating too much.
• Sensor Integration: If you have external temperature sensors or ones in other rooms, make sure the Shelly Wall Display is using the correct sensor for the zone.

It's always advisable to check the specific manual for your Shelly Wall Display model, as the exact option names and navigation may vary. The Shelly Cloud app is your best ally for these settings.