Honeywell T8131A User's Manual
Contents
1. Based on 10 F 5 C decrease 5 F 3 C decrease gives approximately 55 percent of these savings M2416A 37 69 0887 1 38 69 0887 1 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 proof of purchase to the i postage prepaid to the following address Honeywell Inc Return Goods Department 1050 Berkshire Lane 155 Gord Plymouth MN 55441 4437 North Yor This warranty does not cover removal or reinstallation costs This warran in Canada Honeywe retailer from which you purchased it or package it carefully along with proof of purchase including date of purchase and a short description of the malfunction and mail it Limited Honeywell Limit e Product Services ON15 FFE lon Baker Road Ontario M2H 2C9 y shall not apply if it is shown by Honeywell that the defect or malfunction was caused by damage which occurred while the product was in the possession of a consumer Honeywell s sole responsibility shall be to repair or replace the product within the terms state2. 22 Wire Thermostat Terminals seeeesesseeseseseeseeeee enne nnne nennen nine nnb entren nnne nnne tren nn 24 Mount hermostat etcetera t else espe tie testet decide a d ete dens 28 Check Thermostat Operation After Programming and Installing eeeeeeeneee 29 Set Fan and System SwitChes um ce Rete eC RE E AG PEE EORR eru te ig 31 Troubleshooting Guide 2 rne De arre ra Dri ce t eo eR per exo Pes eit phos 32 Limited One Year Warranty cccceeseeeeeeeeeeeeeeeeneeeeeeeeaeeceaeeeaeeseaeeseeeseaeeseaeenaeeenaees Inside Back Cover 3 69 0887 1 RECYCLING If this thermostat is replacing a thermo stat that contains mercury in a sealed tube do not place your old thermostat in the trash See Fig 1 Contact your local waste management authority for instructions regarding recycling and the proper disposal of your old thermostat L4 MERCURY SWITCH M3701 If you have questions call Honeywell Fig ilg o e Buen Inc at 1 800 468 1502 4 69 0887 1 Prepare for Installation Check Table 1 to make sure this thermostat is compatible with your system For more information call Honeywell Customer Assistance toll free 1 800 468 1502 Table 1 Compatibility Chart System Type Compatible With T8131 Gas Standing Pilot Gas Electronic Ignition Gas Fired Boilers Gas Millivolt Oil Fired Boilers Oil Fired Furnace Electric Furnace Electric Air Conditioning
3. Baseboard Electric 120 240 Line Volt Heat Pumps Multistage Equipment NOTE Not compatible with any 120 240 volt circuit a Compatible with 2 wire Honeywell zone valves Isolating relay required for 3 wire thermostats for zone valves Not compatible with 2 wire White Rodgers no 1361 Valves Compatible with hot water baseboard systems Will not work efficiently on steam or gravity systems 5 69 0887 1 Q Acquire tools and items below as needed Also purchase two AA alkaline batteries we recommend Energizer batteries SS es ee CROSS RECESSED SCREWDRIVER HAND OR POWER DRILL WITH 3 16 INCH DRILL BIT IF NEEDED TO DRILL HOLES IN WALL WIRE CUTTER STRIPPER OR SHARP MASKING TAPE IF NEEDED TO LABEL WIRES KNIFE IF NEEDED TO STRIP WIRES AS DISCONNECTED FROM OLD THERMOSTAT LEVEL IF NEEDED TO LEVEL M878B THERMOSTAT FOR APPEARANCE 6 69 0887 1 Remove Old Thermostat Test to make certain that your heating and cooling systems are working properly If either does not work contact your local heating air conditioning dealer To avoid compressor damage do not operate the cooling system when outdoor temperature is below 50 F 10 C Turn off power to the system at the furnace or at the fuse circuit breaker panel Carefully unpack your new thermostat and mounting plate save the package of screws the instructions and the receipt Remove the cover from the old thermo stat If it does not sn
4. conditioner starts 33 69 0887 1 Cooling will not come on Cont The house is too warm or too cool SYSTEM ON indicator is lit but no heat is coming from the registers 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 Assistance at 1 800 468 1502 Press Present Setting key to check the current temperature setting If desired change the temperature setting See page 18 Allow time for the furnace to heat up and the fan to come on before checking for heat at the register Check to make sure system on time is set correctly according to pages 20 and 21 34 69 0887 1 The furnace or air conditioner on time is too short or too long The thermostat s current setting does not match the display temperature bAt Lo remains on display after fresh batteries are installed Contact your heating or air conditioner contractor If further assistance is needed call Honeywell Customer Assistance at 1 800 468 1502 Check that the wiring hole in the wall behind the wallplate was plugged with insulation to prevent drafts that could adversely affect thermostat operation Be awar
5. CT MEANS AND OVERLOAD PROTECTION AS REQUIRED M9214 27 69 0887 1 Mount Thermostat NOTE Toremove the FIGASE ONE AND MOUNTING PLATE ae at thermostat a from the wall first pull out at the bottom of thermostat then remove the top A C SWING COVER OPEN TO CHECK OPERATION M879 28 69 0887 1 Check Thermostat Operation After Programming and Installing Heating Do not check heating system operation such as the gas valve zone valve or oil burner control by jumpering thermostat terminals at the primary control This damages the thermo stat Instead jumper R and W wires at the thermostat Move the system switch to HEAT and the fan switch to AUTO Cool Off Heat LI LI LI Aut On L Press key until the setting is about 10 F 6 C above room tempera ture Heating should start and the fan should run after a short delay immediately if fan operation switch is set in E position Warmer Press key until setting is about 10 F 6 C below room temperature The heating equipment should shut off Cooler Cooling To avoid possible compressor damage do not operate the cooling system when the outside temperature is below 50 F 10 C See compressor manufacturer instructions for further information 69 0887 1 NOTE When cooling setting is changed thermostat can delay up to five minutes before turning on the air conditioner This delay protects the comp
6. Honeywell T8131A B Programmable Thermostat OWNER S GUIDE 77 Weekday Weekend 5 day 2 day Programmable Heat and or Cool Low Voltage 20 to 30 Vac Thermostat and Mounting Plate 69 0887 1 Welcome to the world of comfort and energy savings with your new Honeywell program mable 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 Direct any questions concerning the application of this thermostat to Honeywell Customer Assistance at 1 800 468 1502 Monday Friday 7 00 a m 5 30 p m Central time 69 0887 1 Table of Contents Page Prepare tor Installation Rot e Ru n Fe Lie ie re endeared 5 Remove Old Thermostat iun bem uen EM naaa tiia 7 Replacing a Clock Thermostat that has C or C1 Clock Terminals esses 8 Install Batteries aire ene EEG e HE EH rita ete en HE Re pee t dtr E ege 9 Program tlie Thermostal ien ttt her efie rte niger ttc Lo bet eta 11 Adjust Fan Operation Switch ecccesssscceesceeseeeeseeeseeeeseeceeeeeasecsaeseeeseaeesseeseanesaaeseaeesneeseaaeeneeneaaes 20 Adjust System On Time F G 3 2 m scr ue n deae tdi ee 20 Mount Thermostat Mounting Plate sessssseeeeeennnenn nennen nnne
7. LEEP Weekends WAKE SLEEP N 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 ZX The temperatures cannot be set any higher than 88 F 31 C or any lower than 45 F 7 C NOTE f 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 15 69 0887 1 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 9 and 10 Time Set Current Time Day To set the time press and release once until current time shows to set day press Time Ahead Set Ahead Run and release Clock Day again until current day shows then press program Back Heating Program With system switch at HEAT press and release once WAKE MON FRI and SET appear on the display 16 69 0887 1 Time Temp Use to program WAKE time and to program WAKE temperature for Mon Fri Repeat sequence for LEAVE RETURN and SLEEP Time Press until SAT SUN WAKE and SET appear on the display Use ES to program Back Temp Warmer WAKE time and to program WAKE temperature for SAT SUN Repea
8. ap off when pulled firmly from the bottom check for a screw used to lock on the cover e L5 Loosen screws holding thermostat to subbase wallplate or wall and lift away Disconnect wires from old thermostat or subbase As you disconnect each wire use masking tape to label it with the old terminal designation If there are only two wires they do not require labeling If there is an extra wire that is not con nected to your old thermostat you also will not be connecting it to your new thermostat Keep the wires from falling back into the wall by wrapping them around a pencil as shown WIRES THROUGH WALL OPENING M5136 69 0887 1 Replacing a Clock Thermostat that has C or C1 Clock Terminals If you are replacing a Honeywell Chronotherm amp Thermostat you may find one or two wires that go to the C or C1 clock terminals on the Chronotherm Thermostat wiring wallplate Do not allow them to touch or you can damage your transformer Disconnect the wires and wrap them separately using electrical tape Do not wrap them together Place the wires where they do not interfere with the operation of the new thermostat Record the colors and terminal designation labels of the remaining wires Six or More Wires If there are six or more wires excluding clock wires attached to terminals you most likely have a variation of a heat pump or multistage system This thermostat is not compatible with such systems If you would
9. d above HONEYWELL SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND INCLUDING ANY INCIDENT INDIRECTLY FROM ANY BREACH OF ANY WARRANTY EXPRESS OR do not allow the exclusion or TAL OR CONSEQUENTIAL DAMAGES RESULTING DIRECTLY OR MPLIED OR ANY OTHER FAILURE OF THIS PRODUCT Some states limitation of incidental or consequential damages so this limitation may not apply to you THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT THE DURATION OF ANY IMPLIED WARRANTIES INCLUDING TO THE ONE YEAR DURATION OF THIS WARRANTY Some states do nol limitation may not apply to you This warranty gives you specific legal rights and you may have other rig THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IS HEREBY LIMITED allow limitations on how long an implied warranty lasts so the above hts which vary from state to state If you have any questions concerning this warranty please write our Customer Assistance Center Honeywell Inc P O Box 524 Minneapolis MN 55440 0524 or call 1 800 468 1502 Monday Friday 7 00 a m to 5 30 p m Honeywell Limit e 155 Gordon Baker Road North York Ontario M2H 2C9 39 Central time In Canada write Retail Products ON30 Honeywell Limited 69 0887 1 NOTICE This equipment is a Class B digital apparatus which complies with Canadian Radio Interference Regulations CRC c 1374 Honeywell Home and Building Control Home and Buil
10. ding Control Honeywell Inc Honeywell Limited Honeywell Limit e 1985 Douglas Drive North 155 Gordon Baker Road Golden Valley MN 55422 North York Ontario M2H 2C9 69 0887 1 Rev 5 96 J S Printed in Mexico Copyright 1996 Honeywell Inc All Rights Reserved Helping You Control Your World
11. e that it is normal for the current setting and display temperature to differ occasionally Remove batteries Wait one hour Install fresh alkaline batteries 35 69 0887 1 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 type of heating cooling system for example hot water warm air oil or gas and number of wires connected to the thermostat 36 69 0887 1 Approximate percentage of energy cost savings 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 Savings for Once A Day 10 F 5 C decrease TYPICAL ENERGY SAVINGS FOR REPRESENTATIVE CITIES IN THE U S AND CANADA Savings for Twice A Day a Savings for 5 F 3 10 F 5 C decrease summer increase Boston Cincinnati New York Louisville San Dallas Los Angeles San Diego Chicago Kansas City Philadelphia Portland Francisco Atlanta Detroit St Louis Seattle Wash D C Pittsburgh Columbus Indianapolis
12. eriods are available These periods can be seen individually on the display as you press the Set Schedule key 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 When deciding what time to set for your WAKE period include extra lead time depending on the outside temperature and your furnace response time to give the furnace a head start to heat the house before you get up This will be a higher temperature during heating season or a lower temperature during cooling season LEAVE is the time period you can set for an energy saving temperature while you are away 69 0887 1 at work or school This will be a lower tem perature 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 When deciding what time to set for your RETURN period include extra lead time depending on the outside temperature and your furnace response time to give the furnace a head start to heat the house before you arrive home Again higher for heating or lower for cooling SLEEP is the time period you can set for an energy saving temperature while you are 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 You will set one schedule fo
13. like information about which programmable thermostats will work with your system call Honeywell Customer Assistance at 1 800 468 1502 Three Thermostat Wires If you have three wires for heating only and can operate the fan using the fan ON switch this thermostat will work with your system however some hot water zoned heating systems have three thermostat wires The thermostat will not work without installing an isolating relay on these systems For details call Honeywell Customer Assistance at 1 800 468 1502 69 0887 1 Install Batteries IMPORTANT Batteries must be installed for pro gramming and operating the thermo stat and heating cooling system Use two AA alkaline batteries non alkaline batteries will not last as long and can leak causing damage to the thermostat or the wall surface We recommend Energizer batteries Make sure the thermostat is set to the OFF position Use a coin to remove the battery door Q Install the fresh batteries as shown making sure positive and negative terminals are oriented correctly Q Replace the battery door REMOVING BATTERY DOOR M1719C As the batteries are running low a bAt Lo indicator flashes for one to two months before the batteries run out completely Replace the batteries as soon as possible after the indicator starts flashing If you do not replace the bat teries sometime during the flashing bAt Lo the 69 0887 1 indicator eventually
14. or accurate temperature FOR HIGH EFFICIENCY FURNACE 90 AFUE control ADJUST SCREW A OUT ONE TURN SCREW B IN FUEL SWITCH F POSITION IMPORTANT o DEMOS When using a high i efficiency furnace such as a 90 or greater AFUE Average Fuel Utilization Efficiency unit adjust screw A out one turn and leave screw B in M9199 21 69 0887 1 Mount Thermostat Mounting Plate Position mounting plate on the wall Use a level to make sure mounting plate is level Use a pencil to mark the two mounting holes Remove mounting plate from the wall and drill 3 16 in holes in the wall if drywall as marked For firmer material such as plaster or wood drill 7 32 in holes Gently tap the anchors provided into the drilled holes until flush with the P MOUNTING wall SCREWS 2 M1718 22 69 0887 1 Reposition the mounting plate over the LEVEL holes pulling the wires through the wiring opening Loosely insert the two mounting screws into the holes Q Level for appearance only thermostat functions properly even when not level Tighten the mounting screws M1714A 23 69 0887 1 Wire Thermostat Terminals NOTE All wiring must comply with local codes and ordinances If unsure about household wiring procedures call your local heating air conditioning contractor Refer to the masking tape labels you placed on the wires when you removed your old thermostat Match the le
15. r for 31 69 0887 1 Troubleshooting Guide IF Display will not come on Temperature display will not go lower than 45 F 7 C or higher than 88 F 31 C during programming Temperature change occurs at the wrong times Heating 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 You have reached the temperature setting limit The setting range is 45 F to 88 F 7 C to 31 C Check the program times for the period in question Be sure that AM and PM indications are correct Make sure the current day and time are correct Reprogram if necessary Check that the green LED is lit Check that the switch on the thermostat is set to HEAT 32 69 0887 1 Heating will not come on Cont Cooling will not come on 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 Assistance at 1 800 468 1502 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 Check for correct wiring and good connections The thermostat has a built in time delay on cooling Allow five to ten minutes after changing the setting before the air
16. r weekdays and another for weekends because your require ments are probably different for each 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 all periods if your schedule does not require 69 0887 1 it For example a house that is occupied during weekdays would only require programs for WAKE and SLEEP 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 NOTE Using sharp fingernails or pencil points can damage the keypad If you make an error at any time during programming press the Run Program key and continue again at the last step 69 0887 1 Program Schedule HEATING PROGRAM SCHEDULE Mpeg Start Time Heating Temperature A WAKE TEN INNER LEAVE RETURN Z SLEEP Weekends WAKE SLEEP ZX 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 ZX The temperatures cannot be set any higher than 88 F 31 C or any lower than 45 F 7 C 14 69 0887 1 COOLING PROGRAM SCHEDULE Weekdays Start Time Cooling Temperature A WAKE LEAVE RETURN A S
17. ressor Move the system switch to Cool IET keat COOL and the fan switch to AUTO Auto On wm Press the key until the setting is about 10 F 6 C below room temperature The cooling equipment and fan should start Cooler Press the key until the setting is about 10 F 6 C above room temperature The cooling equipment and fan should stop Warmer Move the system switch to Cool Off Heat OFF keeping the fan switch at MEMEC EEEENN AUTO The system and fan Auto On hould be off LANE PRU ORIS LN 69 0887 1 Set Fan and System Switches more efficient electronic air cleaning In a heat only system the fan runs continuously only when the fan relay is connected to the First set the fan switch thermostat AUTO Normal setting for most Auto On homes A single speed fan turns EO on automatically with the air Then set the system switch conditioner or furnace A two speed fan COOL The thermostat Cool Off Heat usually runs on high with the air conditioner controls your air condition ia and on low with the furnace ing system Exception If Fan Operation Switch on the back OFF Both the heating and air Co Off Heat of the thermostat is set to the E position see conditioning systems are page 21 the fan operates with furnace only off Ato on HEAT The thermostat controls Cool Off Heat ON The fan runs continuously Use your heating system for improved air circulation a during special occasions o
18. see illustration on page 21 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 The E setting allows the fan to turn on immediately with the heating or cooling in a system where the G terminal is connected Adjust System On Time F C The thermostat on time is factory set for a warm air gas or oil heating system If you are installing it on another type of system adjust the on time accordingly by setting screws A and B on the back of the thermostat Use the heating system table shown in the illustration page 21 as a guide Optimize the system on time according to the type of system to minimize room temperature swings Setting the screw out one turn means turning the screw approximately 360 counter clockwise or about one complete turn In the unlikely event that you want a longer furnace on time readjust screws A and or B as follows First turn in both screws completely then adjust for system type Warm Air Furnace set at the Hot Water setting A out one turn B leave in 69 0887 1 Electric Furnace leave at the THERMOSTAT BACK Warm Air Furnace setting A leave in B out one turn ADJUST SCREWS THROUGH HOLES TO SELECT OPERATION DESIRED i i ammwesers WA NOTE This thermostat does not L have a setting for steam Ew P pn gravity air Cycles would not be long enough f
19. stops flashing bAt Lo stays IMPORTANT on without flashing to indicate the thermostat and Although the thermostat has a low heating cooling system have stopped working battery indicator replace the batteries and the batteries are almost completely dead once a year to prevent the thermostat and heating cooling system from After the batteries are completely dead the bAt shutting down due to lack of battery Lo indicator disappears leaving a completely power blank display As a precaution when bandes remove Tom N you BATTERIES AS SHOWN M EE i E O than a month change the 2 bg aor lid kd batteries ie you leave the old ones you do not need sce n to to reprogram the thermostat lack of batt However if the display is blank See Or Battery Powel the batteries are dead or incorrectly installed and you need to reprogram See pages 16 to 19 to reprogram M1713 10 69 0887 1 Program the Thermostat When batteries are installed your thermostat can be programmed in your hand before it is mounted on the wall If you would prefer to program the thermostat after it is mounted on the wall go to page 22 and return later to this programming section Refer to the personal Program Schedule pages 14 and 15 to program your time and temperature settings for various times of the day Four time periods are available during week days WAKE LEAVE RETURN and SLEEP During weekends only the WAKE and SLEEP 11 time p
20. t 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 17 69 0887 1 A quick guide for operating or making changes follows NOTE Set system switch to Heat or Cool to perform the following Temp 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 Run press x Temp Hold Hold a temperature indefinitely such as when you are on vacation press Temp T H i Run HOLD appears on display to cancel press program Check Current Temperature Setting press When using TEMPORARILY CHANGE or HOLD pressing this cancels your change 18 69 0887 1 Check Programs press sue repeatedly to see each time and temperature then press Em Time Ahead until program to cancel shows then press together Cancel a program press Set Schedule Back Permanently Change a program Repeat steps in Heating Program or Cooling Program page 16 and 17 as applicable Return to normal program or start program press ES Questions Call Honeywell Customer Assistance 1 800 468 1502 19 Adjust Fan Operation Switch The thermostat fan operation switch labeled FUEL SWITCH
21. tter of your old thermostat wire with the terminal of the correspond ing letter on the back of your new thermostat Refer to the illustrations on pages 26 through 27 Hold the thermo stat as shown to minimize the need for wire extenders If the wires are still too short use the wire connectors purchased locally to extend the wires See figure for guidelines on using wire extenders METHOD TO INCREASE WIRE LENGTH M1715A 24 WIRE NUT SIZE FOR TWO 18 GAUGE WIRES WIRE FROM WALL 6 IN 152 MM OF 18 GAUGE THERMOSTAT WIRE MATCH INSULATION COLORS OR MARK WIRE ENDS 69 0887 1 Loosen the terminal screws and slip each wire beneath its matching terminal See illustration below for proper wiring technique Securely tighten the terminals Q Plug the hole in the wall with insulation to help prevent drafts from adversely affecting thermostat operation PROPER WIRING TECHNIQUE INSERT 5161lN STRAIGHT 8 MM UNDER d SCREW HEAD GG OF WIRE VISIBLE HERE M3825 25 M3002A 69 0887 1 3 WIRE HEAT ONLY 4 WIRE COOL ONLY COOLING CONTACTOR HEATING RELAY OR VALVE COIL A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED M9213 A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED M9212 26 69 0887 1 5 WIRE HEAT COOL HEATING RELAY OR VALVE COIL COOLING CONTACTOR COIL A POWER SUPPLY PROVIDE DISCONNE
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