T8131A,B Programmable Thermostat OWNER’S GUIDE Weekday/Weekend (5-day/ 2-day) Programmable Heat and/or Cool Low Voltage (20 to 30 Vac) Thermostat and Mounting Plate 69-1636-1
Welcome to the world of comfort and energy savings with your new Honeywell programmable thermostat. By following the programing instructions in this manual, your new thermostat will automatically control the temperature in your home, keeping you comfortable while saving energy.
Table of Contents Page Program the Thermostat ................................................................................................................. Adjust Fan Operation Switch ........................................................................................................... Adjust System On-Time, °F/°C ........................................................................................................ Set Fan and System Switches ......................................................
time periods are available. These periods can be seen individually on the display as you press the Set Schedule key. Program the Thermostat When batteries are installed, your thermostat can be programmed in your hand, before it is mounted on the wall. WAKE is the time period you want the house at a comfortable temperature when you get up and while you get ready for work or school.
sleeping. (Again, lower for heating or higher for cooling. For more comfortable sleeping, some homeowners choose not to raise the cool temperature during the night.) at work or school. (This will be a lower temperature during heating season, or a higher temperature during cooling season.) RETURN is the time period you want the house at a comfortable temperature for activities before bedtime.
NOTE: Using sharp fingernails or pencil points can damage the keypad. it. For example, a house that is occupied during weekdays would only require programs for WAKE and SLEEP. If you make an error at any time during programming, press the Run Program key and continue again at the last step. Before programming, remove the clear plastic overlay covering the display. When pressing the keys, use the ball of your finger or a soft pencil eraser.
Program Schedule HEATING PROGRAM SCHEDULE Weekdays WAKE 1 LEAVE RETURN 1 SLEEP Heating Temperature 2 Start Time Weekends 1 WAKE SLEEP 1 2 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. The temperatures cannot be set any higher than 88°F (31°C) or any lower than 45°F (7°C).
COOLING PROGRAM SCHEDULE Weekdays WAKE 1 LEAVE RETURN 1 SLEEP Start Time Cooling Temperature 2 Weekends 1 WAKE SLEEP 1 2 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. The temperatures cannot be set any higher than 88°F (31°C) or any lower than 45°F (7°C).
This guide can be used for programming your new thermostat. NOTE: Batteries are required for operation and programming. When inserting batteries, set the system switch to OFF. Remove the battery door (on the thermostat left side) using a coin at the bottom. Follow the instructions on pages 16 and 19.
Time Temp Ahead Warmer Use to program WAKE time and Back to program WAKE temperature for Mon-Fri. Cooler Repeat sequence for LEAVE, RETURN, and SLEEP. Press Set Schedule Time Ahead until SAT, SUN, WAKE and SET appear on the display. Use to program Back Temp Warmer WAKE time and to program WAKE temperature for SAT-SUN. Repeat sequence for SLEEP. Cooler Cooling Program With system switch at COOL, follow the same instructions as for the Heating Program.
A quick guide for operating or making changes follows: NOTE: Set system switch to Heat or Cool to perform the following: Temp Warmer Temporarily Change temperature for current period only—press ; TEMPORARY Cooler indicator shows on display; this is cancelled at next scheduled change, or to cancel sooner, press Run Program Temp .
Check Programs—press Set Schedule repeatedly to see each time and temperature; then press Run Program . Time Ahead Cancel a program—press Set Schedule until program to cancel shows; then press together. Back Permanently Change a program—Repeat steps in Heating Program or Cooling Program (page 9 and 10), as applicable. Return to normal program or start program—press 12 Run Program .
setting DIP switches 1 and 2 on the back of the thermostat. Use the heating system table on the thermostat back as a guide. Adjust Fan Operation Switch 쐃 The thermostat fan operation switch, labeled FUEL SWITCH (see illustration on page 14), is factory-set in the F position. This is the correct setting for most systems. If your system is an electric heat system, set the switch to E.
NOTE: This thermostat does not have a setting for steam/ gravity air. Cycles would not be long enough for accurate temperature control.
more efficient electronic air cleaning. (In a heat-only system, the fan runs continuously only when the fan relay is connected to the thermostat.) Set Fan and System Switches First set the fan switch. Auto On AUTO: Normal setting for most homes. A single-speed fan turns on automatically with the air conditioner or furnace. A two-speed fan usually runs on high with the air conditioner and on low with the furnace. Then set the system switch.
Replace the batteries as soon as possible after the indicator starts flashing. Install Batteries IMPORTANT Batteries must be installed for programming and operating the thermostat and heating/cooling system. After the batteries are completely dead, the bAt Lo indicator disappears, leaving the display completely blank and the heating and/or cooling system not operating. • Use two AA alkaline batteries; nonalkaline batteries do not last as long. • Make sure the thermosat is set to the OFF position.
To remove batteries, press down on the left ends of batteries. If you insert the new batteries within 20 to 30 seconds of removing the old ones, you do not need to reprogram the thermostat. However, if the display is blank, the batteries are dead or incorrectly installed and you need to reprogram. • Install the fresh batteries, as shown, making sure positive and negative terminals are oriented correctly. • Replace the battery door.
Troubleshooting Guide IF… Display will not come on. THEN… ■ 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 than 45°F (7°C) or higher than 88°F (31°C) during programming. ■ You have reached the temperature setting limit. The setting range is 45°F to 88°F (7°C to 31°C). Temperature change occurs at the wrong times. ■ Check the program times for the period in question.
Heating will not come on (Cont). ■ Check the system fuse or circuit breaker and replace or reset, if necessary. ■ Check for correct wiring and good connections. ■ If temperature setting is higher than current temperature and displays HEAT, contact Honeywell Customer Relations 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.
Cooling will not come on (Cont). ■ If temperature setting is lower than current temperature, and displays COOL, move system switch from COOL to OFF for ten minutes. After ten minutes, return switch to COOL position. If the air conditioner comes on, compressor could have reached its high limit temperature protection and shut down. If the air conditioner does not come on after ten minutes and displays COOL, contact Honeywell Customer Relations at 1-800-468-1502. The house is too warm or too cool.
The furnace or air conditioner on-time is too short or too long. ■ Contact your heating or air conditioner contractor. If further assistance is needed, call Honeywell Customer Relations at 1-800-468-1502. The thermostat’s current setting does not match the display temperature. ■ Check that the wiring hole in the wall behind the wallplate was plugged with insulation to prevent drafts that could adversely affect thermostat operation.
TYPICAL ENERGY SAVINGS FOR REPRESENTATIVE CITIES IN THE U.S. AND CANADA Savings for Once-A-Day 10°F (5°C) decrease Savings for Twice-A-Day 10°F (5°C) decrease* Savings for 5°F (3°) summer increase Approximate percentage of energy cost savings 30% 28% 26% 24% 22% 20% 18% 16% 14% 12% 10% 8% 6% 4% 2% Minneapolis St. Paul Montreal Ottawa Toronto Edmonton Regina Winnipeg Calgary Moncton North Bay Quebec St.
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.
NOTICE: This equipment is a Class B digital apparatus, which complies with Canadian Radio Interference Regulations, CRC c.1374. Customer Assistance For all questions concerning this thermostat, please read and follow the instructions. If additional assistance is needed, call Honeywell Customer Relations toll-free at 1-800-468-1502.
