Vizio Z WAVE TZEMT400AB32MAA - Manual (Page 10)

Thermostat User Guide
12
MODE Button
The MODE button controls the HVAC system mode. The current mode selected is displayed above the button. Pressing
the MODE button will take you to the System Mode screen.
Pressing the Up or Down buttons will scroll through the mode options. Pressing done or waiting for the screen to timeout
will select the new mode.
System Mode Screen
OFF
HEATING
COOLING
AUTO
EHEAT
Done
SYSTEM MODE
Use the Up/Down
buttons to scroll
through the
Modes.
Mode
Mode Operation
Off Mode: System is off. No heating or cooling will come on. If system was on, it will turn off.
Heat Mode: Only heating will occur.
Cool Mode: Only cooling will occur.
Auto Mode: Heating or cooling will come on according to the heating and cooling setpoints. The system will automatically
switch between heating and cooling when the temperature exceeds the appropriate setpoints.
EHEAT Mode: Emergency Heat mode is only displayed when Heat Pump HVAC System Type is selected. During extreme
weather conditions or when there is a compressor failure with the heat pump system, setting the mode to EHEAT will
allow the supplemental heat to come on whenever there is a heat call to provide heating and also disables the compressor
outputs.