T8700B An Electronic Round™ Programmable Thermostat OWNER’S GUIDE 1 69-1181 69-1181
Congratulations on the purchase of your new thermostat! Over 100 years of Honeywell engineering expertise went into the making of this thermostat in an effort to provide you with a more comfortable and convenient living environment. • Simple and Easy to Use. The and keys make it easy for you to change your time and temperature settings. • Large digital display. You can easily read the current time and temperature at a glance. • No need for batteries.
SETTINGS Then set the Heat System switch: Setting Fan and Heat System Switches HEAT: Use normal setting for months when your home needs heating. Digital display shows a flame when heating is on. To control the Fan and Heat settings, adjust the Fan and Heat switches located on the top of the thermostat wallplate. OFF: Heating is off. If you have a Fan Switch, set this first: AUTO: The fan starts a few minutes after the heating equipment comes on.
Preprogrammed Time and Temperature settings. To use the preprogrammed Time and Temperature setting you must first set the current time. PROGRAMMING The thermostat is already programmed for your convenience with time and temperature settings. See Table 1. 1. To set the current time: Table 1. Preprogrammed Time and Temperature Settings. Period Start Time Heating Setpoint WAKE 6:00 AM 70°F (21°C) SLEEP 10:00 PM 62°F (16.
b. To change the preprogrammed Time and Temperature settings follow steps 1 through 6. 1. Set the current time. Use the or keys to set your desired WAKE time. The WAKE time is now set. 3. Set your WAKE temperature. PM SET AM a. Press the key once. You will see a flashing clock. a. Press the key once. You will see a flashing WAKE temperature. b. Use the or keys to set the current time. The clock is now set. b. Use the or keys to set your desired WAKE temperature. The WAKE temperature is now set.
4. Set your SLEEP time. a. Press the key once. You will see a flashing SLEEP time. b. Use the or keys to set your desired SLEEP time. The SLEEP time is now set. 5. Set your SLEEP temperature. a. b. 6. Run program. a. Press key once. You have completed your program PM changes. End is displayed for five seconds indicating the end of programming. The thermostat then displays the current time and room temperature. PM SET PM Press the key once. You will see a flashing SLEEP temperature.
b. OPERATING YOUR THERMOSTAT Display Temperature Setting Press or once SET to display present PM temperature setting. After approximately five seconds, the thermostat displays the current time and temperature. NOTE: Press SET or until desired temperature is displayed. To cancel your TEMPORARY change, press until End is displayed. Hold Function To hold the thermostat at one temperature indefinitely, program both WAKE and SLEEP to the same temperature. Temporary Change a. TEMPORARY is displayed.
ENERGY SAVINGS You can save energy with this thermostat during the heating season by automatically lowering the temperature setting 5°F (3°C) to 10°F (5°C) at night. PERCENT OF HEATING COSTS YOU CAN SAVE SAVINGS FOR ONCE-A-DAY 10°F (5°C) DECREASE* 6 9 12 14 16 TO TO TO TO TO 8% 11% 13% 15% 18% HEAT YOUR SAVINGS DEPENDS ON HOME SIZE AND ACTUAL HEAT LOSS OR GAIN, GEOGRAPHIC LOCATION, FREQUENCY OF TEMPERATURES CHANGE, AND RANGE IN DEGREES OF CHANGE.
Symptom Heating does not come on. Corrective Action Check that the heat setpoint is above room temperature. Check that the system switch on the thermostat is set to HEAT. Check the system fuse or circuit breaker and replace or reset if necessary. Check power to the heating equipment. Temperature setting is too warm or too cool. Adjust the temperature by pressing either the Blank display. Check that switch to furnace is on. or key. Check that the thermostat is properly latched on wallplate.
If you have any questions concerning this thermostat, call Honeywell Customer Assistance at 1-800-468-1502, Monday - Friday, 7:00 am - 5:30 pm, Central time.
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Home and Building Control Honeywell Inc. Honeywell Plaza P.O. Box 524 Minneapolis, MN 55408-0524 Copyright ©1998 Honeywell Inc. 69-1181 5-98 D.S. Home and Building Control Honeywell Limited-Honeywell Limitée 155 Gordon Baker Road North York, Ontario M2H 3N7 All Rights Reserved Printed in U.S.A. on recycled paper containing at least 10% post-consumer paper fibers. ® U.S. Registered Trademark 12 www.honeywell.
