110-791B 7/12/01 8:58 AM Page 19
•Returning to Programmed Operation: At any time, press the RESUME button to return the thermostat to operate as programmed.
•Change Between °C and °F : The thermostat has the capability of displaying either Celsius or Fahrenheit temperatures. If the displayed temperature seems abnormally high or low
(ie: 70˚F = 21˚C) you may need to switch to ˚C or ˚F by simultaneously pressing the
DECREASE 
button and the INCREASE 
button.
•Checking the Outdoor Temperature: If your thermostat was installed with the optional Aprilaire Outdoor Temperature Sensor, simply press the OUTDOOR button and the thermostat will display the outdoor temperature for 5 seconds before automatically returning to the actual room temperature display.
TIME CONTROL
•Change From 12- to
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