When an HVAC device is added to Flair (a thermostat or IR device), a zone is created with the same name. For example, if a mini split is added with the name "Bedroom Split", a zone will be created called "Bedroom Split".
This example shows the settings for a room called "Bedroom". The bedroom has a mini split and the "Bedroom Split" zone checked.
This example shows the settings for a room called "Living Room". This home has an ecobee called "414 CRC" and we see this zone is checked.
In this same home, the "Dining Room" also has the "414 CRC" zone checked.