Honeywell MAGICSTAT CT2400 User's Manual
Contents
1. INSTALL TWO AA ALKALINE BATTERIES AS SHOWN M1713 2 M17198 As the batteries are running low a bAt Lo indicator will flash for one to two months before batteries run out completely Replace the batteries as soon as possible after the indicator starts flashing If you do not replace the batteries sometime during the flashing bAt Lo the indicator will eventually stop 20 to 30 seconds of removing the old ones you will not have to reprogram the thermostat However if the display is blank the batteries are dead or incorrectly installed and you will have to reprogram See pages 12 and 13 to reprogram IMPORTANT Although the thermostat has a low battery indicator replace the batteries once a year to prevent the thermostat and heating cooling system from shutting down due to lack of battery power As a precaution when leaving home for longer than a month change batteries before you leave to prevent the system from shutting down due to lack of battery power SUS Program The Thermostat After the batteries are installed the thermostat can be easily programmed in your hand before it is installed on the wall If you would prefer to program the thermostat after it is installed on the wall skip to page 8 and return later to this programming section The following personal programming chart pages 10 to 11 may be helpful for planning your program schedule of time and tempera ture settings for2. 5 C decrease 10 F 5 C decrease summer increase Approximate percentage of energy O0P2LD 6820 69 j quunN uuoj Form Number 69 0789 CT2400 Z g A Based on 10 F 5 C decrease 5 F 3 C decrease gives approximately 55 percent of these savings uzatsa Thermostat patents pending p I Printed in U S A G S 7 93 Honeywell Inc 1993 Welcome to the world of comfort and energy savings with your new Honeywell MagicStat programmable thermostat Your new thermostat will automatically control the temperature in your home keeping you comfortable while saving energy when programmed according to the instruc tions in this manual 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 Table Of Contents RECYCLING THERMOSTAT If this thermostat is replacing a thermostat that contains mercury in a sealed tube see illustration below do not place your old thermostat in the trash Contact your local waste management authority for instructions regarding the recycling and proper disposal of your old thermostat If you have questions call Honeywell Inc at 1 800 468 1502 Typical A MERCURY location of a SWITCH mercury switch ina thermostat M3701 STEP 1 Prepare For Installation reneis euir nia ua EEA E EEE aaa kausai asa kay waqwan EEE Et 2 STEP 2 Remove Old
3. Thermostat STEP 3 Install The Batteries STEP 4 Program The Thermostat STEP 5 Adjust Fan Operation Switch As Required cscs cce cece teen eee eee eee teen ee eee eeneeeeeaes 16 STEP 6 Adjust System On Time As Required l raana ene eee eee 16 STEP 7 Mount Thermostat Mounting Plate eee ee sees seen eeeeee seen ease eeeaeneeeeeeeneeees 18 STEP 8 Wire Thermostat Terminals UE EE EE Eee 20 STEP 9 Mount The Thermostat l pionna naaa a casas ceeduvetedaneeencesaeneed ENANA PERA ea passa 24 STEP 10 Check Thermostat Operation After Programming And installing 25 STEP 11 Set The Fan And System Switches ccc cece tee mm 27 Troubleshooting GUE iis cereccienendesaiereonsmettnetaanenecany nie TAA ENEAN NEARNE EENE N STAA aqaqiqaya aqha yaq aqa 29 Limited One Year Warranty inci 35 Q Acquire tools and items below as needed Also purchase two AA alkaline batteries we recommend Energizer batteries lt gt CROSS RECESSED SCREWDRIVER WIRE CUTTER STRIPPER oR SHARP KNIFE IF NEEDED TO STRIP WIRES HAND OR POWER DRILL WITH 3 16 INCH DRILL BIT IF NEEDED TO DRILL HOLES IN WALL MASKING TAPF IF NEEDED TO LABEL WIRES AS DISCONNECTED FROM OLD THERMOSTAT LEVEL IF NEEDED TO LEVEL THERMOSTAT FOR APPEARANCE 3 SUAM Prepare For Installation Q Check Table 1 to make sure this thermostat is compatib
4. hole behind thermostat is plugged with insulation to help prevent drafts from adversely affecting thermostat operation E The thermostat is factory calibrated and cannot be adjusted 32 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 kind of heating cooling system i e hot water warm air oil gas etc and number of wires connected to the thermostat NOTICE This equipment is a Class B digital apparatus which complies with Canadian Radio Interference Regulations CRC c 1374 33
5. question Be sure that AM and PM indications are correct Make sure the current day and time are correct Reprogram if necessary Check that switch on thermostat is set to HEAT 29 a Pee Heating will not come on continued WW Cooling will not come on The house is too warm or too cool SYSTEM ON indicator is lit but no heat is coming from the registers Check the system fuse or circuit breaker and replace or reset if necessary Check for correct wiring and good connections Jumper wires R and W If heat does not come on contact your heating dealer If display is blank or says bAt Lo install fresh batteries If temperature setting is higher than current tempera ture and SYSTEM ON indicator is lit contact Honeywell Customer Assistance at 1 800 468 1502 Check that switch on 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 Jumper wires Rc and Y If cooling does not come on contact your cooling dealer If display is blank or says bAt Lo install fresh batteries The thermostat has a built in time delay on cooling Allow five to ten minutes after changing the setting before the air conditioner starts 30 Make sure outdoor disconnect is engaged on If temperature setting is lower than current tempera ture and SYSTEM ON indicator is lit move system switch from COOL to OFF for ten minutes A
6. Honeywell Weekday Weekend 5 day 2 day P R O G RA M M A B L E Programmable Haat andlor Cool Low Volt 20 to 30 Vat T H E R M O S TAT Pa yah rE Piete BY HONEYWELL Model CT2400 MagicStat PROGRAMMING AND INSTALLATION INSTRUCTIONS 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 tha consumer If at any lime 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 returnit with a bill of sale or other dated proof of purchase to the retailer from which you purchased it or ii package it carefully along with Proof of purchase including date of purchase and a short description of the ma ffunct ion and mail it postage prepaid to the following address Honeywell Inc in Canada Honeywell Limited Honeywell Limit e Return Goods Department Product Services ON 15 FFE 1050 Berkshire Lane 740 Ellesmere Road Plymouth MN 55441 4437 Scarborough Ontario MI P 2V9 This warranty does not cover removal or reinstallation coats This warranty 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 re
7. TION 2 WIRE HEAT ONLY JUMPER INTACT RELAY OR VALVE COIL ZA POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED ayaa 22 5 WIRE HEAT COOL JUMPER REMOVED HEATING RELAY OR VALVE COIL COOLING A CONTACTOR A u ti lt Gon Hon lt gt t gt A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED MITI1A 23 4 WIRE HEAT COOL JUMPER INTACT HEATING RELAY OR VALVE COIL COOLING CONTACTOR COIL A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED MITI0A 3 WIRE COOL ONLY JUMPER INTACT A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED ane INSTALLATION SS Mount The Thermostat A ENGAGE TABS AT TOP OF C SWING COVER OPEN THERMOSTAT AND MOUNTING PLATE TO CHECK OPERATION B PRESS LOWER EDGE OF CASE TO LATCH M879A NOTE To remove thermostat from wall first pull out at bottom of thermostat removing top last 24 Check Thermostat Operation After STEP 10 Programming And Installing HEATING Cool Off Heat Move the system switch to HEAT and Do not check heating system a the fan switch to AUTO operation by jumpering thermostat Auto On terminals at the primary control such S as the gas valve zone valve or oil burner control This will damage the thermostat Instead jumper R and W Temp Press key until the setting is about wire
8. d C The thermostat fan operation switch labeled electric heat system set the switch to E The H Questions Call Honeywell Cistwnen Aeaee 1 800 468 1502 i FUEL SWITCH see illustration on page 17 is E setting will allow the fan to turn on immedi factory set in the F position This is the correct ately with the heating or cooling in a system setting for most systems If your system is an where the G terminal is connected SUAJ Adjust System On Time As Required C The system on tim is factory set for a warm approximately 360 counterclockwise or about air gas or oil heating system If you are installing one complete turn it on another type of system the system on time must be adjusted accordingly by setting screws A In the unlikely event that you want longer furnace and B on the back of the thermostat Use the on time readjust screws A and or B as follows heating system table shown in the illustration page 17 as a guide The system on time should First turn both screws incompletely then adjust be optimized according to the type of system to for system type minimize room temperature swings Setting the eWarm Air Furnace Set at the Hot Water screw out one turn means turning the screw setting A out one turn B in eElectric Furnace Leave at the Warm Air Furnace setting A in B in 16 NOTE This thermostat does not have a setting for steam gravity air Cycles woul
9. d not be long enough for accurate temperature control IMPORTANT When using a high efficiency furnace such as a 90 percent or greater Average Fuel Utilization Efficiency i AFUE unit adjust screw A i OUT ONE TURN and screw 1 I I THERMOSTAT BACK ADJUST SCREWS THROUGH HOLES TO SELECT OPERATION DESIRED HEATING SYSTEM Ft SSS ss sasa BIN ELECTRIC rumuce Ww G ADIUST SCREW A OUT 1 TURN SCREW Y onpa FUEL SWITCH F POSITION FET 4 fal FUEL OWITCH pg A sy i F Ele ROD Rc i r fire t L dull 4 sa on 17 INSTALLATION QUSA Mount Thermostat Mounting Plate Position mounting plate on wall Use a level to make sure mounting plate is level Use a pencil to mark the two mounting holes Remove mounting plate from wall and drill 3 1 6 inch holes in wall if drywall as marked For firmer material such as plaster or wood drill 7 32 inch holes Gently tap anchors provided into drilled holes until flush with the wall Reposition mounting plate over holes pulling wires through wiring opening Loosely insert two mounting screws into holes O Level for appearance only thermostat will function properly even when not level Tighten mounting screws 19 WALL ANCHORS 2 WIRES THROUGH WALL OPENING we MOUNTING SCREWS 2 M1714A INSTALLATION SE Wire Thermostat Terminals NOTE Ail wiring must comply with local codes a
10. eekends only the WAKE and When pressing the keys use the ball of your SLEEP time periods are available finger or a soft pencil eraser Use of sharp fingernails or pencil points can damage the Fill in the times and temperatures you desire keypad for weekdays and weekends If you decide not to program the thermostat it will automatically If you make an error at any time during control heating at 68 F 20 C and cooling at programming just press the RUN PROGRAM 78 F 26 C 24 hours a day Also you do not key and continue again at the step where you need to enter a time and temperature program left off for all periods if your schedule does not PROGRAMMING 9 Personal Programming Chart HEATING PROGRAM Weekdays Start Time Heating Temperature WAKE LEAVE RETURN SLEEP WeekendsZ WAKE SLEEP AN If you decide not to enter weekend programs SLEEP from the weekday program will copy to the weekend schedule A The temperatures cannot be set any higher than 88 F 31 C or any lower than 45 F 7 C 10 COOLING PROGRAM Weekdays Start Time Cooling Temperature WAKE LEAVE RETURN SLEEP Weekends A WAKE SLEEP A If you decide not to enter weekend programs SLEEP from the weekday program will copy to the weekend schedule A 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 i
11. ence for LEAVE RETURN SLEEP Nims Press senedue HN WAKE SA SU and SET appear on display Use to program Temp rmer WAKE time ant to program WAKE temperature for Sat Sun Repeat sequence for SLEEP oler Cooling Program With system switch at COOL follow the same instructions as for Heating Program Rapa waq After programming adjust fan and system switches as desired Press and release to start the program PROGRAMMING 13 Aquick guide for operating or making changes follows NOTE System switch must be set to Heat or Cool to perform the following Temp L rmer Temporarily Change Temperature for Current Period Only Temporary indicator will show on display it will cancel itself at next scheduled change To cancel sooner pres Program Temp eh Hod Warmer Hold a Temperature Indefinitely F Ken press klo cancel r 14 Check Current Temperature Setting peng If using Temporarily Change or Hold pressing this will cancel your change Check Programs repeatedly to see each time and temperature then P dl Time Ahead Cancel a Program s4gitil program to cancel shows then together Permanently Change a Program Repeat steps under Heating Program or Cooling Program pages 12 and 13 as applicable R Return to normal program or start program program PROGRAMMING 15 SAIS a Adjust Fan Operation Switch As Require
12. fter ten minutes return switch to COOL position If air conditioner comes on compressor may have reached its high limit temperature protection and shut down If air conditioner does not come on after the ten minutes and the SYSTEM ON indicator is lit contact Honey well Consumer Assistance at 1 800 468 1502 If 2 or 4 wire installation verify that R Rc jumper is installed Press RUN PROGRAM key to check the current temperature setting If desired change the temperature setting See page 14 Allow time for the furnace to heat up and the fan to some on before checking for heat at the register Check to make sure system on time is set correctly according to pages 16 and 17 31 The furnace cycles too frequently or the system cycle length is too short or too long The thermostat current setting does not match the display temperature to within 10 Incorrect room temperature showing on thermostat display Toll free Customer Assistance E Readjust system on time according to instructions on pages 16 and 17 E Check that the wiring hole in the wall behind the wallplate has been plugged with insulation to prevent drafts that might adversely affect thermostat operation E Be aware that it is normal for the current setting and display temperature to differ on occasion E During recovery from setback or setup setting and display temperatures may differ for up to 30 minutes after the recovery period E Make sure
13. ioner and on low with furnace Exception When Fan Operation Switch on back of thermostat is set to E position see page 16 fan will operate with furnace only FAN ON The fan runs continuously Auto on Use for improved air circulation during special occasions or for more efficient smua electronic air cleaning In a heat only system fan will run continuously only when fan relay is connected to the thermostat 27 INSTALLATION Then set the system switch COOL The thermostat controls your Cool Off Heat air conditioning system C Cool OFF Both the heating and air ee cO heal conditioning systems are off wa HEAT The thermostat controls your Cool Off Heat heating system www 28 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 Set the system switch to OFF Remove batteries Insert batteries backward forat least five seconds to reset thermostat Replace batteries correctly Display should come on Make sure batteries are fresh and installed correctly Gently clean battery contacts using a soft pencil eraser Do not use anything abrasive on clips You have reached the temperature setting limit The setting range is 45 F to 88 F 7 Cto310 C Check the program times for the period in
14. le with your system If it is not return to retailer For more information call Honeywell Customer Assistance toll free 1 800 468 1502 TABLE 1 COMPATIBILITY CHART Gas Standina Pilot Gas Electronic Ignition Gas Fired Boilers Gas Millivolt Oil Fired Boilers Oil Fired Furnace Electric Furnace Electric Air Conditioning Baseboard Electric 120 240 Line Volt Heat Pumps Multistage Equipment Compatible With CT2400 es Yes Yes A A No Yes A A Yes Yes Yes No No Not canynatible wiitany 20248 vot ctu Z N Compatible with 2 wire Honeywell zone valves Isolating relay requiredfor 3 wire thermo stats for zone valves Not compatible with 2 wire White Rodgers no 1361 valves ZA Compatible with hot water baseboard systems Will not work efficiently on steam or gravity systems SUA Remove Old Thermostat 1 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 Q TURN OFF POWER to system at the furnace or at the fuse circuit breaker panel Carefully unpack your new thermostat and mounting plate save the package of screws instructions and receipt Remove cover from old thermostat If it does not snap off when pulled firmly from the bottom check for a screw used to lock on
15. nd ordinances if unsure about household wiring procedures call your local heating air conditioning contractor Refer to masking tape labels you placed on wires when you removed your old thermostat METHOD TO INCREASE WIRE LENGTH B M1715A tors purchased locally to extend wires See illustration above for guidelines on using wire extenders D In 5 wire installations only be sure to remove the factory installed jumper connecting terminals R and Rc LJ Loosen the terminal screws and slip each wire beneath its matching terminal See illustration lower right for wire insertion technique Tighten terminals securely J Plug the hole in the wall with insulation to help prevent drafts from adversely affecting thermostat operation O Match the letter of your old thermostat wire with the terminal of the corresponding letter on the back of your new thermostat Refer to illustrations on pages 22 to 23 Hold the thermo stat as shown to minimize need for wire extend ers If wires are still too short use wire connec WIRE NUT SIZE FOR TWO 18 GAUGE WIRES 0 WIRE FROM amp in 152 mm OF WALL 18 GAUGE THERMOSTAT WIRE MATCH INSULATION COLORS OR MARK WIRE ENDS PROPER WIRING TECHNIQUE M3666 PROPER WIRING TECHNIQUE INSERT 5 6 in STRAIGHT 8 mm UNDER STRIP SCREW HEAD v 1 r WIRE VISIBLE HERE JUMPER FACTORY INSTALLED REMOVE IF 5 WIRE SYSTEM MI7124 INSTALLA
16. rogram mable 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 SS Install The Batteries IMPORTANT Batteries must be installed for programming and operation of the thermo stat and heating cooling system QO Purchase two AA alkaline batteries non alkaline batteries will not last as long and may leak causing damage to thermostat or wall surface We recommend Energizer batteries Make sure the thermostat is set in the OFF position J Use a coin to remove battery door Install the fresh batteries as shown making sure positive and negative terminals are oriented correctly L Replace battery door flashing bAt Lo will stay on without flashing indicating the thermostat and heating cooling system have stopped working and the batteries are almost completely dead After the batteries are completely dead the bAt Lo indicator will disappear leaving a completely blank display Press down on left ends of batteries to remove If you insert the new batteries within
17. s at the thermostat 10 F 6 C above room tempera V armeg ture Heating should start and the fan should run after a short delay immediately if fan operation switch is set in E position Temp Press key until setting is about 10 F 6 C below room temperature The heating equipment should shut off 25 INSTALLATION COOLING To avoid possible compressor damage do not operate the cooling system when outside temperature is below 50 F 1 O C See compressor manu facturer instructions for further information NOTE When cooling setting is changed thermostat may delay up to five minutes before turning on the air conditioner This delay protects the com pressor SUAE Set The Fan And System Switches First set the fan switch Cool Off Heat Move the system switch to COOL CESEN and the fan switch to AUTO Auto On E a jen Temp Press key until setting is about 10 F 6 C below room temperature The cooling equipment and fan should start Temp Press key until the setting is about 10 F 6 C above room tempera ture The cooling equipment and fan should stop Cool Off Heat Move the system switch to OFF EC with the fan switch still at AUTO Auto On The system and fan should be off K 26 Auto On FAN AUTO Normal settingfor most 8 Li homes A sinqle speed fan will turn on automatically with air conditioner or furnace A two speed fan will usually run on high with air condit
18. sponsibility 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 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 THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IS HEREBY LIMITED TO THE ONE YEAR DURATION OF THIS WARRANTY Some states do not allow limitations on how long an implied warranty lasts so the above limitation may not apply to you This warranty gives you specific legal rights and You may have other rights 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 Central time In Canada write Retail Products ON1 5 02H Honeywell Limited Honeyweil Limit e 740 Ellesmere Road Scarborough Ontario MI P 2V9 35 TYPICAL ENERGY SAVINGS FOR REPRESENTATIVE CITIES IN THE U S AND CANADA Savings for Once A Day 3 Savings for Twice A Day m Savings for 5 F 3 10 F
19. t will automatically control heating at 68 F 20 C and cooling at 78 F 26 C 24 hours a day PROGRAMMING 11 COOLING PROGRAM Weekdays Start Time Cooling Temperature WAKE _ LEAVE RETURN SLEEP Weekends A WAKE SLEEP A If you decide not to enter weekend programs SLEEP from the weekday program will copy to the weekend schedule ZN 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 will automatically control heating at 68 F 20 C and cooling at 78 F 26 C 24 hours a day PROGRAMMING 11 This guide can be used for programming your new thermostat NOTE Batteries are required for operation and programming When inserting batteries set system switch to OFF Remove battery door on thermostat left side using a coin at the bottom Follow instructions on pages 6 and 7 Set Current Time Day Time Ahead i Set i i To set time press and release cosa ybnce until current time shows to set day Time r Ahead s Run press and release again ae until current day shows then Pred span Back Heating Program With system switch at HEAT press and release senede ONCE WAKE Mon Fri and SET appear on display 12 Time Back Temp Ahead Use C 1 to program WAKE time and es to program WAKE temperature for Mon Fri Repeat sequ
20. the cover Replacing a Clock Thermostat that has C or Cl Clock Terminals If you are replacing a Honeywell Chronotherm Thermostat you may find one or two wires that go to the C or Cl clock terminals on the Chronotherm Thermostat wiring wallplate Do not allow them to touch or you may damage your transformer Disconnect the wires and wrap them sepa rately using electrical tape Do not wrap them together Place the wires where they will 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 QO Loosen screws holding thermostat to subbase waliplate or wall and lift away CI 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 need to be labeled If there is an extra wire that is not connected to your old thermo stat you will a so 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 or multistage system The thermostat is not compatible with such systems so return the product to the place of purchase If you would like information about which p
21. various times of the day Four time periods are available during weekdays WAKE LEAVE RE TURN and SLEEP 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 This will be a higher temperature during heating season or a lower tempera ture during cooling season LEAVE is the time period you can set for an energy saving temperature while you are away 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 Again higher heat or lower cool SLEEP is the time period you can set for an energy saving temperature while you are sleeping Again lower heat or higher cool require it For example a house that is occu For more comfortable sleeping some pied during weekdays would only require people choose not to raise the cool tem programs for WAKE and SLEEP perature during the night If no program is entered for the weekends the You will set one schedule for weekdays and thermostat will operate on the weekday another for weekends because your require SLEEP program all weekend ments will probably be different for each During w
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