The available advanced settings can be accessed by the Advanced Settings link at the end if the online configuration process at www.zenthermostat.com/install
Advanced configuration allows a professional HVAC installer to set more detailed system parameters. Any changes made in the advanced configuration will override basic configuration settings, so it recommended that only a knowledgeable HVAC installer use the advanced settings.
You will only be able to view a select number of advanced settings.The available advanced settings will change depending on what heating/cooling system you have in your home. After completing the installation process, only the useful advanced settings will be displayed by the online Advanced Settings page and on the ZEN display.