Honeywell Thor VM1 User Manual page 159

Defroster Control
Enable the touch screen defroster, if installed, and set the trip point. Settings are
ignored if the defroster is not installed.
If a defroster is installed, the defroster can be switched between the Enabled and Dis-
abled states using the check box. The default is Disabled (unchecked).
Specify the Defroster trip point. The default trip point is 40ºC/104ºF.
Thor VM1 with Microsoft Windows Embedded Standard 2009 User Guide 149