Honeywell T8501 Owner's Manual - Page 4

Then set the FAN key: Auto: Normal setting for most homes. Equipment controls the fan. On: The fan runs continuously. Use for improved air circulation and air quality. Emergency Heat (T8511 Heat Pump Models Only) The Emergency Heat feature allows you to turn on the backup heat section of the system by moving the System switch to the Em. Ht. position. The thermostat shows Em. Ht. in the display when the system calls for emergency heat. Aux. Ht. in the display when the auxiliary heating equipment operates. Displaying Temperature Setting NOTE: Your temperature setting can be set anywhere from 55° to 99°F (13° to 37°C). The temperature setting and the room temperature display separately. Press the ▲ or ▼ key to change current temperature setting. To change between the heat and cool setting, press the i key until the setting to be changed appears. Auxiliary Heat (T8511 Heat Pump Models Only) The auxiliary heaters assist the heat pump under normal conditions when low outdoor temperature occurs. The thermostat shows Displaying Outdoor Temperature (Select Models) Pressing the Information i key once shows the outdoor temperature when an outdoor temperature sensor is installed. 4 69-1629-1