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T8131C
Programmable Thermostat
OWNER’S GUIDE
Weekday/Weekend
Programmable Heat and/or Cool
Thermostat and Mounting Plate
1 69-0908—1 69-0908-1
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Welcome to the world of comfort and energy automatically control the temperature in your savings with your new Honeywell Trol-A-Temp® home. Temperature control saves energy and programmable thermostat. allows you to awake (or return home) to a comfortable level of heating or air conditioning. Your new T8131 Thermostat is designed to provide you with reliable, precise temperature Direct questions concerning the operation of control. By following the simple programming this thermostat to Honeywell
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Table of Contents Page Programming Thermostat ............................................................................................................... 4 Program Schedule .......................................................................................................................... 6 T8131C Programming Guide .......................................................................................................... 8 Setting Fan and System Switches ................................
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Use the personal Program Schedule for Programming Thermostat planning your program schedule of time and temperature settings for various times of the NOTE: When batteries are installed, your day. T8131 Thermostat can be pro- grammed in your hand (armchair Four time periods are available during week- programming), or when it is mounted days —WAKE, LEAVE, RETURN, and on the wall. Batteries are not required SLEEP. View these periods individually on the for normal thermostat operation; display whe
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Select LEAVE if you want an energy-saving Fill in the times and temperatures you desire temperature while you are away at work or for weekdays and weekends. If you decide not school. (This will be a lower temperature during to program the thermostat, it automatically heating season, or a higher temperature during controls heating at 68°F (20°C) and cooling at cooling season.) 78°F (26°C), 24 hours a day. Also, you do not need to enter a time and temperature program Select RETURN if you want the
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Program Schedule HEATING PROGRAM SCHEDULE 2 Weekdays Start Time Heating Temperature 1 WAKE LEAVE 1 RETURN SLEEP Weekends 1 WAKE SLEEP 1 WAKE and RETURN start times should include extra lead time, based on outside temperature and furnace response time, to give your furnace a head start to heat the house. 2 The temperatures cannot be set any higher than 88°F (31°C) or any lower than 45°F (7°C). 6 69-0908—1
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COOLING PROGRAM SCHEDULE 2 Weekdays Start Time Heating Temperature 1 WAKE LEAVE 1 RETURN SLEEP Weekends 1 WAKE SLEEP 1 WAKE and RETURN start times should include extra lead time, based on outside temperature and furnace response time, to give your furnace a head start to heat the house. 2 The temperatures cannot be set any higher than 88°F (31°C) or any lower than 45°F (7°C). NOTE: If you decide not to program the thermostat, it automatically controls heating at 68°F (20°C) and cooling at 78°F (
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T8131C Programming Guide NOTE: Batteries are required only for armchair programming, and to retain your personal tem- perature schedule in memory if ac power is lost. When replacing batteries, set the system switch to OFF. Remove the battery door (on the thermostat left side) using a coin at the bottom. Follow instructions in Installing Batteries section. Set Current Time/Day Ahead Set To set time, press and release once, and press until current time shows; to set Clock/Day Back Ahea
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Ahead Warmer Press to program WAKE time and to program WAKE temperature for Mon-Fri. Cooler Back Repeat sequence for LEAVE, RETURN, and SLEEP. Ahead Weekend Press until SAT SUN, WAKE and SET appear on display. Press to program Schedule Back Warmer WAKE time and press to program WAKE temperature for Sat-Sun. Repeat sequence for Cooler SLEEP. Cooling Program With system switch at COOL, follow the same instructions as for the Heating Program. Run After program
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A quick guide for operating or making changes follows: NOTE: Set system switch to HEAT or COOL to perform the following: Warmer Temporarily Change temperature for current period only—press ; temperature cancels Cooler Run itself at next scheduled change; to cancel sooner, press . Program Warmer Hold Run Hold a temperature indefinitely—press , ; to cancel, press . Temp Program Cooler Present Check Current Temperature Setting—press . Setting Weekday Weekend C
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Weekday Weekend Cancel a program—press then until program to cancel shows; then Schedule Schedule press Clear . Usage Check Usage — press to determine length of time heat or air conditioning has been on since midnight; press again for yesterday’s usage, and again for cumulative usage. Run Clear Press to clear cumulative reading, if desired; then press . Program Permanently Change a program—repeat steps in Heating Program or Cooli
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Setting Fan and System Switches Then set the system switch. First set the fan switch. Auto On Cool Off Heat AUTO: Normal setting for most COOL: The thermostat controls homes. A single-speed fan your air conditioning turns on automatically with the system. air conditioner or furnace. A two-speed fan Cool Off Heat usually runs on high with the air conditioner OFF: Both the heating and air and runs on low with the furnace. conditioning systems are off. Auto On ON: The fan runs continuously. Cool Of
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Installing Batteries IMPORTANT Batteries are required only for armchair programming and to retain your personal temperature schedule in memory if ac power is lost. • Use two AA alkaline batteries; nonalkaline REMOVING BATTERY batteries do not last as long. We recom- DOOR mend Energizer® batteries. • Make sure the thermostat is set to the OFF position. • Use a coin to remove the battery door. M1719C 13 69-0908—1
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INSTALL TWO AA ALKALINE To remove the batteries, press down on the left BATTERIES AS SHOWN ends of the batteries. If you insert new batteries within 20 to 30 seconds of removing the old POWER ones, the thermostat does not require repro- gramming. However, if the display is blank, the batteries are dead or incorrectly installed and the thermostat requires reprogramming. • Install the fresh batteries, as shown, making sure positive and negative terminals are oriented correctly. • Replace the batt
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Troubleshooting Guide IF… THEN… Display will not come on. Check that the green light emitting diode (LED) located to the left of the LCD is lit, indicating the thermostat is powered properly. Temperature display will not go lower The temperature setting limit was reached. The setting than 45°F (7°C) or higher than 88°F range is 45°F to 88°F (7°C to 31°C). (31°C) during programming. Temperature change occurs at the Verify the program times for the period. Be sure that wrong times. AM and PM
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Heating will not come on (Cont). If temperature setting is higher than the current temperature and displays HEAT, contact Honeywell Customer Assistance at 1-800-468-1502. Cooling will not come on. Check that the green LED is lit. Check that the switch on the thermostat is set to COOL. Check the system fuse or circuit breaker and replace or reset, if necessary. The thermostat has a built-in time delay on cooling. Allow five to ten minutes after changing the setting before the air condit
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Cooling will not come on (Cont). ten minutes and displays COOL, contact the Honeywell Customer Assistance at 1-800-468-1502. The house is too warm or too cool. Press PRESENT SETTING key to check the current temperature setting. If desired, change the temperature setting. See page 5. SYSTEM ON indicator is lit, but no Allow time for the furnace to heat up and the fan to heat is coming from the registers. come on before checking for heat at the register. The furnace or air conditioner On C
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TYPICAL ENERGY SAVINGS FOR REPRESENTATIVE CITIES IN THE U.S. AND CANADA Savings for Once-A-Day Savings for Twice-A-Day Savings for 5°F (3°) 10°F (5°C) decrease 10°F (5°C) decrease* summer increase 30% 28% 26% 24% 22% 20% 18% 16% 14% 12% 10% 8% 6% 4% 2% Minneapolis Edmonton Calgary Halifax Vancouver Buffalo Denver Boston Cincinnati New York Louisville San Dallas Los Angeles San Diego Regina Moncton Cleveland Des Moines Chicago Kansas City Philadelphia Portland Francisco Atlanta
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Limited One-Year Warranty Honeywell warrants this product, excluding battery, to be free from defects in the workmanship or materials, under normal use and service, for a period of one (1) year from the date of purchase by the consumer. If, at any time during the warranty period, the product is defective or malfunctions, Honeywell shall repair or replace it (at Honeywell’s option) within a reasonable period of time. If the product is defective, (i) return it, with a bill of sale or other dated p
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Toll-free Customer Assistance For all questions concerning this thermostat, please read and follow the instructions. If additional assistance is needed, call Honeywell Customer Assistance toll-free at 1-800-468-1502, Monday- Friday, 7:00 a.m.-5:30 p.m. Central time. Before you call, please have the following information available: Thermostat model number and date code, and type of heating/cooling system (for example, hot water, warm air, oil and gas). 69-0908—1 Rev. 5-96 J.S. Printed in Me
