3- Prog
Press the Prog (programming) key to set the current time and day (hours, minutes, day of week), and to program the temperature time schedules for the MORN, DAY, EVE, and NITE periods.
4- Mode
Press the Mode key to set the thermostat mode to Off, Heat, Cool, Auto, or EM Heat.
In Off mode, the heating and cooling systems are both off and do not respond to changes in temperature settings.
In Heat mode, the heating system responds to maintain your desired heating setting.
In Cool mode, the cooling system responds to maintain your desired cooling setting.
In Auto mode, your thermostat will automatically switch between heat and cool to maintain your desired heating and cooling settings.
In Emergency Heat mode (displayed as EM HEAT) the thermostat will turn off the heat pump and use the auxiliary heating to maintain the temperature setting. This mode should only be used if the heat pump is malfunctioning, because the auxiliary heat costs more to operate than the heat pump.
5- Fan
Press the Fan key to set the system fan to Fan Auto or Fan On.
In Fan Auto mode, the fan runs only when the system calls for heating or cooling.
In Fan On mode, the fan runs continuously.
5
