The "Summer" mode is a mode that only exists for thermostatic heads.
This mode prevents your heating elements from seizing up, by opening your heads to the maximum when it is activated.
It will also extend the life of your batteries and space out your products' communications.
To activate it, simply go to your "My Residence" tab, then click on "My Settings":
When this mode is activated, your head will display this logo:
⚠ If your heating has not been switched off, do not activate this mode, as it will cause significant heating in your home.