Step 1 - From the controller with all of the settings you wish to use; Go to Main menu > Administration > Diagnostics > Backup Database Step 2 - From the Diagnostics page, go to Eject USB and push Yes. Step 3 - With this "It is now safe to remove the ...
Yes, if it is a fixed-speed fan it can be wired to your minimum ventilation fan and set to switch on the fan if the temperature gets too high. This is useful if your main controller fails.