Honeywell RTH7400 series - System Setting; Accessing System Settings; System Mode Options

Operating Manual
69-2222ES—05 8
System setting
Follow steps at left to select system:
• Heat: Thermostat controls only the heating
system.
• Cool: Thermostat controls only the cooling
system.
• Auto: Thermostat automatically selects
heating or cooling depending on the indoor
temperature.
• Off: All systems are off.
• Em Heat (only for heat pumps with auxiliary
heat):ThermostatcontrolsEmergencyand
Auxiliary Heat. Compressor is locked out.
System & Fan Schedule Clock & More
M28081
System Fan Done
System
Heat
Fan Auto
M28083
Press SYSTEM & FAN
Press SYSTEM to select mode,
then press DONE
Note: The Auto and EmHeat system
settings may not appear, depending on
how your thermostat was installed.