Honeywell T8631A Owner's Manual - Page 21

ANSWERING COMMON QUESTIONS ABOUT THE CHRONOTHERM III THERMOSTAT 9. Can I stop the thermostat from bringing the heat on so early in the morning? How? T8631A has screws on the back of the thermostat that will allow you to turn off Adaptive Intelligent Recovery™. On the T8631R without the screw to override Adaptive Intelligent Recovery™, you will only be able to set one completely automatic energy savings period; the second period must be ended manually. Also, since recovery starts at the time you programmed, the comfort temperature may not be reached by the desired time. Do you have a heat pump with auxiliary heat? If so, we don't recommend overriding Adaptive Intelligent Recovery™ because the amount of expensive auxiliary heat needed for recovery can cost more than the energy saved by lowering the temperature. Here's how to override Adaptive Intelligent Recovery setting: s Set the desired WAKE program temperature. s Set the WAKE program time 30 to 60 minutes before the time you normally get up. (You can adjust this time. If the house reaches the comfort temperature too early, set the time later; if it reaches the comfort temperature too late, set the time earlier, but don't go beyond 90 minutes.) s Set the desired SLEEP program time and temperature. The SLEEP temperature must not be more than 10 degrees below the comfort setting. s Set the RETURN program time to 10 minutes before your programmed WAKE time. s Set the RETURN program temperature the same as the SLEEP temperature. s The LEAVE program remains blank unless you want a day energy saving period. See page 3. s The thermostat will think that it doesn't need to start recovery until 10 minutes before your WAKE time. It will run the furnace constantly until the comfort temperature is reached. 35 EXAMPLE: PERIOD WAKE LEAVE SLEEP RETURN TIME SETTING 5:30 AM - 10:00 PM 5:20 AM TEMPERATURE SETTING 70° F - 60° F 60° F If you want a day program: s Set the desired LEAVE time and temperature. The thermostat will automatically initiate an energy savings period. s The first person home must push the CHANGE TO LAST PERIOD key to start warming the house. The furnace will run constantly until the comfort temperature is reached. 10. I have a high efficiency furnace and my heat is short cycling. What can I do? Some high efficiency furnaces need the cycle rate set at the Hot Water setting instead of the factory setting of gas/oil warm air. Turn out the 1A screw with screw 1B left turned in. Additional Questions? Call Honeywell Consumer Services: 1-800-468-1502 Monday-Friday, 7:30 a.m. to 5:00 p.m., Central time. 36