DCN: 140-02121-02 Page 10
Operation Guide
Model TBZ48A
Battery Powered Z-Wave Thermostat
Backlight and Button Operation
The thermostat backlight is normally set to go out after 20 seconds of no button presses to
conserve battery power.
If the backlight is off, the first button press of any button will only turn on the backlight.
Once the backlight is on, the buttons function normally.
TBZ48A Display
System Operation Mode
displayed > System is ON and heating
displayed > System is ON and cooling
blinking > System is ON and heating. Minimum Run Time (MRT) delay is active.
blinking > System is ON and cooling. Minimum Run Time (MRT) delay is active.
Temperature
Setting
Warmer
Cooler
Heating/Cooling
Mode Selection
Battery Compartment
Flip down door
2xAA or 4xAA Alkaline Batteries
Off
Heat-E
Cool
Auto
Select
Z-Wave Network Installed
indicator