Product
Information
T1 Pro
TH1110D2009
TH1010D2000
System operation settings
1 Press the Menu to cause the Mode
and Fan menus to appear.
2 Press Mode ( ) to cycle through
the available modes.
NOTE: Available System modes vary
by model and system settings.
System modes:
‒ Heat
‒ Cool
‒ Off
Fan operation settings
Damage can occur if the
compressor is restarted
too soon after shutdown.
This feature forces the
compressor to wait for
a few minutes before
restarting.
During the wait time,
the display will flash
the message Cool On
(or Heat On if you have
a heat pump). When
the safe wait time has
elapsed, the message
stops flashing and the
compressor turns on.
Built-in compressor protection
Message flashes until safe
restart time has elapsed.
Batteries are optional (to provide backup power) if
your thermostat was wired to run on AC power when
installed. If your thermostat was not wired to run on AC
power, then batteries are required.
Install fresh batteries immediately when the low battery
icon appears. The icon appears about two months
before the batteries are depleted.
Even if the low battery icon does not appear, you should
replace batteries once a year, or before leaving home for
more than a month.
NOTE: When replacing batteries, alkaline batteries are
recommended.
Battery replacement
When the low battery
warning appears, press
gently to loosen the
thermostat and then
carefully pull it from the wall
mount.
Insert fresh alkaline AA
batteries and reinstall
thermostat.
+
+
+
+
1 Press Menu to cause the Mode and
Fan menus to appear.
2 Press Fan ( ) to cycle through Fan
modes.
NOTE: Available Fan modes vary with
system settings.
Fan modes:
‒ Auto: Fan runs only when the
heating or cooling system is on.
‒ On: Fan is always on.
Thermostat controls
The screen will wake up by pressing any of the three buttons. If powered by the C wire, the screen stays lit for 45
seconds after you complete changes. If powered by battery only, the screen stays lit for 8 seconds. Depending
on how your thermostat was installed, the screen light may always be on.
+
• System status
information
Cool On/
Heat On/
Compressor
Protection
• Menu
Press to display
Mode (Heat,
Off, Cool) and
Fan (Auto, On)
• Indoor temperature
setpoint
Press + or – to change
temperature setting
• Actual indoor
temperature
• Temperature/
Navigation buttons
Press to increase or
decrease temperature
setpoint and to navigate
menus and menu
options
For more detailed information, please search online for
Resideo 3300190EFS for the full User Guide that goes
to https://customer.resideo.com/resources/techlit/
TechLitDocuments/3300000s/3300190EFS.pdf
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