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69-0908—1

Table of Contents

Page

Programming Thermostat ............................................................................................................... 4
Program Schedule .......................................................................................................................... 6
T8131C Programming Guide .......................................................................................................... 8
Setting Fan and System Switches .................................................................................................. 12
Installing Batteries ........................................................................................................................... 13
Troubleshooting Guide .................................................................................................................... 15
Limited One-Year Warranty .................................................................................... Inside Back Cover

Summary of Contents for T8131C

Page 1: ...1 69 0908 1 Weekday Weekend Programmable Heat and or Cool Thermostat and Mounting Plate OWNER S GUIDE 69 0908 1 T8131C Programmable Thermostat ...

Page 2: ... By following the simple programming instructions in this manual your thermostat will automatically control the temperature in your home Temperature control saves energy and allows you to awake or return home to a comfortable level of heating or air conditioning Direct questions concerning the operation of this thermostat to Honeywell Customer Assistance at 1 800 468 1502 Monday Friday 7 00 a m 5 ...

Page 3: ...e of Contents Page Programming Thermostat 4 Program Schedule 6 T8131C Programming Guide 8 Setting Fan and System Switches 12 Installing Batteries 13 Troubleshooting Guide 15 Limited One Year Warranty Inside Back Cover ...

Page 4: ...and SLEEP time periods are available Use the personal Program Schedule for planning your program schedule of time and temperature settings for various times of the day Four time periods are available during week days WAKE LEAVE RETURN and SLEEP View these periods individually on the display when you press the Set Schedule key Select WAKE if you want the house at a comfortable temperature when you ...

Page 5: ...perature while you are sleeping For more comfortable sleeping some people choose not to raise the cool temperature during the night Fill in the times and temperatures you desire for weekdays and weekends If you decide not to program the thermostat it automatically controls heating at 68 F 20 C and cooling at 78 F 26 C 24 hours a day Also you do not need to enter a time and temperature program for ...

Page 6: ...LEAVE RETURN SLEEP Weekends WAKE SLEEP 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 1 1 1 1 2 2 ...

Page 7: ...clude 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 NOTE If you decide not to program the thermostat it automatically controls heating at 68 F 20 C and cooling at 78 F 26 C 24 hours a day 1 1 1 1 2 2 ...

Page 8: ...the thermostat left side using a coin at the bottom Follow instructions in Installing Batteries section Set Current Time Day To set time press and release once and press until current time shows to set day press and release again and press until current day shows then press Heating Program With system switch at HEAT press and release once WAKE MON FRI and SET appear on display Ahead Back Set Clock...

Page 9: ...ar on display Press to program WAKE time and press to program WAKE temperature for Sat Sun Repeat sequence for SLEEP Cooling Program With system switch at COOL follow the same instructions as for the Heating Program After programming adjust fan and system switches as desired Press and release to start the program Ahead Back Weekend Schedule Ahead Back Warmer Cooler Run Program ...

Page 10: ...nly press temperature cancels itself at next scheduled change to cancel sooner press Hold a temperature indefinitely press to cancel press Check Current Temperature Setting press Check Programs press then repeatedly to see each time and temperature then press Warmer Cooler Run Program Hold Temp Warmer Cooler Run Program Present Setting Weekday Schedule Weekend Schedule Run Program ...

Page 11: ...ht press again for yesterday s usage and again for cumulative usage Press to clear cumulative reading if desired then press Permanently Change a program repeat steps in Heating Program or Cooling Program sections pages 5 and 6 as applicable Return to normal program or start program press Weekend Schedule Clear Clear Run Program Run Program Questions Call Honeywell Customer Assistance 1 800 468 150...

Page 12: ...air conditioner and runs on low with the furnace ON The fan runs continuously Use for improved air circulation during special occasions or for more efficient electronic air cleaning Then set the system switch COOL The thermostat controls your air conditioning system OFF Both the heating and air conditioning systems are off HEAT The thermostat controls your heating system Heat Cool Off Auto On Auto...

Page 13: ...d to retain your personal temperature schedule in memory if ac power is lost Use two AA alkaline batteries nonalkaline batteries do not last as long We recom mend Energizer batteries Make sure the thermostat is set to the OFF position Use a coin to remove the battery door M1719C REMOVING BATTERY DOOR ...

Page 14: ...o 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 battery door Replace the batteries once a year to assure memory retention if ac power is lost INSTALL TWO AA ALKALINE BATTERIES AS SHOWN M9203 POWER ...

Page 15: ...tting 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 indications are correct Make sure the current day and time are correct Reprogram if necessary Heating will not come on Check that the green LED is lit Check that the switch on the thermostat is ...

Page 16: ...r 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 conditioner starts If temperature setting is lower than current tempera ture and displays COOL move the system switch from COOL to OFF for ten minutes After ten minutes return the switch to the COOL position If the air conditioner comes on the ...

Page 17: ...eat is coming from the registers come on before checking for heat at the register The furnace or air conditioner On Contact your heating or air conditioner contractor If cycle is too short or too long further assistance is needed call Honeywell Customer Assistance at 1 800 468 1502 The current thermostat Be aware that it is normal for the current setting setting does not match the and display temp...

Page 18: ...nnati Kansas City St Louis Columbus New York Philadelphia Seattle Louisville Portland Wash D C San Francisco Dallas Atlanta Los Angeles Approximate percentage of energy cost savings 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 TYPICAL ENERGY SAVINGS FOR REPRESENTATIVE CITIES IN THE U S AND CANADA Based on 10 F 5 C decrease 5 F...

Page 19: ... sole responsibility shall be to repair or replace the product within the terms stated above HONEYWELL SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING DIRECTLY OR INDIRECTLY FROM ANY BREACH OF ANY WARRANTY EXPRESS OR IMPLIED OR ANY OTHER FAILURE OF THIS PRODUCT Some states do not allow the exclusion or limitation of incidental or c...

Page 20: ...oneywell 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 Mexico Copyright 1996 Honeywell Inc All Rights Reserved ...

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