Prestige® THX9321/THX9421 Thermostat
27 69-2493E FS—01
Menu: Installer options
Press HELP at any screen for more information
about these options.
These options should be changed only
by professionally qualified technicians.
To avoid disabling or damaging your
equipment, do not change these
options yourself.
The USB port on the bottom of the
thermostat is for use by professional
installers only. Do not attempt to use
this port yourself.
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MCR32965
MCR32986
Installer Options