In an installation which is also equipped with Airzone Blueface thermostats, you can change the language from the User settings menu of one of the thermostats and it will be changed in all of them (see image).

In an installation which is only equipped with Airzone Think thermostats, the language is chosen in the system initial settings. If all the thermostats are already associated and you want to change the language, it is necessary to free a zone and reassociate it. To do so, access the Zone advanced settings menu and then access the Reset thermostat parameter. Then select the language and reassociate the zone.