Honeywell Thermostat CT8602 User Manual - Honeywell Thermostat Manual Download

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Sunday, April 5, 2020

Honeywell Thermostat CT8602 User Manual

Honeywell CT8602 PROGRAMMABLE THERMOSTAT OWNER’S GUIDE Seven Day Programmable Heat and/or Cool Low Voltage (20 to 30 Vac) Thermostat and Wallplate Model CT8602 Para obtener un documento con las instrucciones en español, por favor visite nuestro sitio de web a: www.honeywell.com/yourhome. Pour obtenir des notices techniques en français, veuillez consulter notre site web www.honeywell.com/yourhome. Table of Contents Step 1. Prepare for Installation .................................................................................................................................. 5 Step 2. Remove Old Thermostat ............................................................................................................................... 6 Step 3. Mount thermostat Wallplate ........................................................................................................................... 7 Step 4. Wire Wallplate Terminals ............................................................................................................................... 8 Step 5. Install the Batteries ........................................................................................................................................ 9 Step 6. Set Fan Operation Switch ............................................................................................................................. 10 Step 7. Mount the Thermostat ................................................................................................................................... 11 Step 8. Customize Your Thermostat .......................................................................................................................... 11 Step 9. Set the Clock ................................................................................................................................................. 13 Step 10. Programming ............................................................................................................................................... 14 Step 11. Operating Your Thermostat ......................................................................................................................... 17 Step 12. Set the Fan and System Switches .............................................................................................................. 19 If You Have a Problem ............................................................................................................................................... 19 Smart Response™ Technology ................................................................................................................................. 21 Wiring Diagrams ........................................................................................................................................................ 22 Place Bar Code Here ® U.S. Registered Trademark Copyright © 2001 Honeywell • •All Rights Reserved 69- 1532 Total comfort temperature management with Smart Response™ Technology. Congratulations! You made a smart choice by purchasing your new Honeywell thermostat; the smart thermostat that; • Keeps you comfortable by automatically calculating exactly when the furnace or air conditioning should go on to have the house at the desired comfort temperature by the time you wake up or return home. • Saves the maximum amount of energy and money by automatically remembering to adjust the temperature when you leave home or go to sleep. • Provides the ultimate in comfort and convenience. It comes preprogrammed. You can use the preprogrammed schedule, or set your own. This manual answers many of the questions that can arise as you become familiar and comfortable with your Honeywell thermostat — the state of the art in home comfort controls. Read these instructions carefully. Failure to follow these instructions can damage the product or cause a hazardous condition. MERCURY NOTICE If this thermostat is replacing a control that contains mercury in a sealed tube, do not place your old control in the trash. Contact your local waste management authority for instructions regarding recycling and the proper disposal of this MERCURY control, or of an old control containing mercury in a sealed SWITCH tube. TYPICAL LOCATION OF A MERCURY SWITCH IN A THERMOSTAT M10614 69-1532 2 INCREASE TEMPERATURE INCREASE TIME SETTING SET WAKE TIMES SET LEAVE TIMES SET RETURN TIMES SETTING OR SCROLL OR SCROLL FORWARD AND SETPOINTS AND SETPOINTS AND SETPOINTS FORWARD THROUGH THROUGH INSTALLER SETUP INSTALLER SETUP OPTIONS AND SYSTEM TEST DECREASE TEMPERATURE SET CURRENT SETTING OR SCROLL DAY AND TIME BACKWARD THROUGH INSTALLER SETUP OPTIONS RETURN TO DISPLAY INFORMATION NORMAL SUCH AS PRESENT OPERATIONS SETTINGS AND OUTDOOR TEMPERATURE ENTER INDEFINITE Time Set Program SET SLEEP TIMES OR TIMED Run Set Current Wake Leave Return Sleep AND SETPOINTS HOLD MODE Program Day/Time Heat Off Cool Heat/Cool SYSTEM SWITCH Hold Temp System Day Settings SET CURRENT OR On Auto PROGRAM DAY FAN SWITCH Daylight Copy Fan Time CHANGE BETWEEN DAYLIGHT SAVINGS CHANGE BETWEEN AND STANDARD TIME COPY ONE PROGRAMMED DECREASE TIME SETTING OR HEATING AND COOLING DAY TO ANOTHER DAY SCROLL BACKWARD THROUGH INSTALLER SETUP AND SYSTEM TEST SETPOINTS M14880 3 69-1532 SHOWS WHEN THERMOSTAT IS IN THE PROGRAMMING MODE DISPLAYS EITHER CURRENT SHOWS THERMOSTAT IS TIME OF DAY OR PROGRAM TIMES PROCESSING INFORMATION AND WAITING TO CALL FOR SHOWS TEMPERATURE SETTING HEAT OR COOL CHANGED FOR THIS PROGRAM PERIOD SHOWS THE TEMPERATURE SHOWS SMART DISPLAYED IS THE CURRENT RESPONSE SET TEMPERATURE IS CHANGING THE TEMPERATURE TO MEET THE SHOWS CURRENT CURRENT SYSTEM SWITCH System PROGRAMS WaitSet Program Set Day/TimeTemporary Setting POSITION Heat HEAT/OFF/COOL Recovery AM Off SHOWS Hold for Cool SHOWS THAT VACATION THERMOSTAT IS HOLD Days "CALLING" FOR DURATION Tue Wed Thu Fri Sat Sun Repl Batt HEAT OR COOL Mon Room DST Filter Wake Leave Return Sleep SHOWS SMART RESPONSE IS OFF. SHOWS CURRENT DISPLAYS CONVENTIONAL DAY OR DAYS SHOWS THE BATTERIES EITHER ROOM RECOVERY IS ON BEING ARE LOW AND MUST BE OR SET PROGRAMMED REPLACED TEMPERATURES SHOWS CURRENT SHOWS SYSTEM ON SHOWS THE TEMPERATURE PROGRAM PERIOD DAYLIGHT SAVINGS TIME DISPLAYED IS THE CURRENT OR PERIOD BEING ROOM TEMPERATURE PROGRAMMED M18746 69-1532 4 STEP 1. PREPARE FOR INSTALLATION ❑ Check Table 1, the compatibility chart, to make sure the thermostat is compatible with your system. If your system is not compatible, call Honeywell Customer Relations Center, toll-free, 1-800-468-1502. Table 1. Compatibility Chart. System Type Compatibility with CT8602 Gas — Standing Pilot Yes Gas — Electronic Ignition Yes Gas-fired Boilers Yes a Gas —750 Millivolt Heat onlyb Yes Oil-Fired Boilers Yes a Oil-Fired Furnace Yes Electric Furnace Yes Electric Air Conditioning Yes Baseboard Electric (120/240 line volt)c No Single Stage Heat Pump Yes Multistage Heat Pumps/Multistage Equipment No a Compatible with 2-wire Honeywell and Taco zone valves. Not compatible with 3-wire zone valves or 2-wire White Rodgers no. 1361 zone valves. b Millivolt system must be heat only. c Not compatible with any 120/240 volt system. Package Contents • Thermostat • Wallplate • Screws and anchors • Wiring labels • 3 Energizer® AA batteries • Owners manual Tools Required • Screwdriver • Drill 5 69-1532 STEP 2. REMOVE OLD THERMOSTAT ❑ Test your heating and cooling systems to make sure they work properly. If either system 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 the fuse/circuit breaker panel. ❑ Carefully unpack your new thermostat and wallplate. Save package of screws, instructions, and receipt. ❑ Remove the cover from the old thermostat. If the cover does not snap off when pulled firmly from the bottom, check for a screw or screws used to lock on the cover. ❑ Loosen the screw or screws holding the thermostat to the wallplate and lift the thermostat away. ❑ Disconnect the wires from the old thermostat. As you disconnect each wire, attach the enclosed labels with the old terminal designation. If there are only two wires, they do not need to be labeled. Wrap the wires around a pencil as shown to keep them from falling back into the wall. Special Installations WIRES THROUGH Read this section if you are replacing: WALL OPENING • Clock thermostat with separate wires for the clock. • Thermostat with six or more wires connected to it. • Thermostat in a heating only system with three wires. Replacing a Clock Thermostat that has C or C1 Clock Terminals M5136 If you are replacing a Honeywell Chronotherm® Thermostat, you may find one or two wires going to the C or C1 clock terminals on the Chronotherm wiring wallplate. Do not allow them to touch, or you can damage the transformer. Disconnect the wires and wrap them separately 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. Replacing a Thermostat that has Six or More Wires If there are six or more wires (excluding clock wires attached to terminals), you probably have a variation of a multistage heat pump or other multistage system. This thermostat is not compatible with multistage systems, so return the product to the place of purchase. If you have questions regarding this thermostat please visit our web site at www.honeywell.com/yourhome, or call the 24-hour automated information line at 1-800-468-1502. Replacing a Thermostat that has Three Wires If you have three wires for a heating only system and can operate the fan using the fan ON switch this thermostat works with your system. However, some hot water (zoned) heating systems also have three wires. Your thermostat will work only if you install an isolating relay on these systems. For details, call your local heating and/or cooling contractor. 6 69-1532 STEP 3. MOUNT THERMOSTAT WALLPLATE ❑ Separate the wallplate from the thermostat by placing your thumb or fingers between the bottom of the wallplate and the thermostat, and pulling the wallplate up and away from the thermostat. See illustration at right. ❑ Position the wallplate on the wall. Level the wallplate for appearance if desired. Use a pencil to mark the two mounting holes that best fit the application. ❑ Remove the wallplate from the wall. Drill two 3/16 in. holes in wall (if drywall) as shown. For materials such as plaster or wood, drill 7/32 in. holes where marked. Gently, tap the (provided) anchors into the drilled holes until they are flush with the wall. ❑ Reposition the wallplate over the holes. Pull the wires through the wiring M16427 opening. Loosely insert mounting screws into each of the holes. ❑ Level the wallplate if desired. Thermostat functions properly when not level. ❑ Tighten mounting screws. WALL WIRES THROUGH WALL WALL ANCHORS (2) MOUNTING HOLES MOUNTING SCREWS M15044 7 69-1532 STEP 4. WIRE WALLPLATE TERMINALS IMPORTANT All wiring must comply with local codes and ordinances. If unsure about household wiring procedures, call your local heat- ing/air-conditioning contractor. R Refer to the labels you placed on the wires when you removed the old W thermostat (see illustration). ❑ Y Match the letter of your old thermostat wire with the corresponding G terminal letter on your new thermostat. Refer to Table 2. ❑ Remove the factory-installed jumper connecting terminals R and RC if wires are connected to both of those terminals. ❑ For wiring diagrams, if needed, see pp 22-23. ❑ Loosen the terminal screws. Slip each wire beneath its matching terminal. Wraparound and straight connections are both acceptable, (see illustration). Tighten the terminals. FOR WRAPAROUND FOR STRAIGHT INSERTION INSERTION STRIP STRIP 5/16 IN. (8 MM). 7/16 IN. (11 MM). M16425 M4826 ❑ Plug the hole in the wall with insulation to help prevent drafts from adversely affecting thermostat operation. 69-1532 8 Table 2. Terminal Designations on Old and New Thermostats Terminal on Old Thermostat Connect To Description R, RHa, 4, V R Power Rc, Ra Rc Power for cooling W, W1, H W Heat Y, Y 1, M Y Cooling G, F G Fan O O Changeover in cool. (Single stage heat pump only). Bb Bb Changeover in heat. (Single stage heat pump only). Cc, Xc, Bb Do not connect. Transformer common W2, H2 Do not continue installation. Second stage heat. Call 1-800-468-1502. Y2 Second stage cool. a If both RH and R terminals are present on existing thermostat, remove jumper and connect Rh to R and R to Rc. b Do not connect both O and B when wiring to a single stage heat pump. Connect O to O. Tape off B. c Tape off end of the wire with electrical tape and push the taped wire back into the wiring hole in the wall. STEP 5. INSTALL THE BATTERIES WALLPLATE B IMPORTANT Three AA alkaline batteries are included with the thermo- stat. Batteries must be installed for programming and opera- tion of the thermostat and the heating/cooling system. RRCOWYG ❑ Install the batteries in the wallplate so the positive terminals all point up (see illustration). ❑ If the thermostat is already mounted on the wall, remove the thermostat by placing your thumb between the thermostat and wallplate and pulling the thermostat up and away as shown. INSTALL 3 AA ALKALINE BATTERIES AS SHOWN, POSITIVE (+) TERMINALS TOWARD TOP. M10622 9 69-1532 When the batteries are running low, a REPL BAT message flashes for one to two months before the batteries run out completely. Replace the batteries as soon as possible once the message flashes. IMPORTANT Although the thermostat has a low battery indicator, replace the batteries once per year to prevent leakage and to prevent the ther- mostat and heating/cooling system from shutting down due to lack of battery power in the thermostat. If you insert new batteries within 20 to 30 seconds of removing the old batteries, the system retains the current time and day. If the display is blank, the batteries are dead or installed incorrectly. You must reset the time and day. Refer to Set the Clock for instructions. M16424 As a precaution when leaving home for longer than a month, change batteries before leaving to prevent 80 70 90 60 the system from shutting down due to lack of power. Always use fresh alkaline batteries. Nonalkaline 60 90 70 80 batteries do not last as long. They also can leak, causing damage to the thermostat and the wall surface. Honeywell recommends Energizer® batteries. STEP 6. SET FAN OPERATION SWITCH The thermostat fan operation switch, labeled FUEL SWITCH 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 and cooling in a system where the G terminal is connected. FUEL SWITCH M12676 69-1532 10 STEP 7. MOUNT THE THERMOSTAT A. ENGAGE TABS AT TOP B. PRESS LOWER OF THERMOSTAT EDGE OF CASE AND WALLPLATE. TO LATCH. M12703 STEP 8. CUSTOMIZE YOUR THERMOSTAT Your Honeywell CT8602 thermostat comes preset to the most commonly used settings. The settings are: Gas or oil forced air furnace. Smart Response technology on. Temperature °F. 12-hour clock format. You can change any or all of these settings. IMPORTANT Always press the keys with your fingertip or a similar blunt tool. Sharp instruments like pens and pencil points can damage the keyboard. 11 69-1532 ❑ Press and hold down , , and , simultaneously until the screen shows. You now can change any of these settings. System Type (Feature Number 4) System type options are: FEATURE OPTION 1 = Gravity or steam system. NUMBER M18750 3 = Hot water, high efficiency furnace (90% or better), or single stage heat pump. 6 = Gas or oil forced air furnace (preset). 9 = Electric furnace. To change your system type: ❑ Press until display shows your furnace or boiler type. Run ❑ Press Time to move to next feature or Program to return to main display. Smart Response™ Technology (Feature Number 13) Smart Response technology options are: 0 = Smart Response technology on (preset). 1 = Smart Response technology off. M18751 To turn Smart Response technology on or off: ❑ Press once. Run ❑ Press Time to move to next feature or Program to return to main display. NOTE: See Smart Response technology (page 21) for information about this feature. Temperature Format (Feature Number 14) Temperature format options are: 0 = °F (preset). 1 = °C. M18752 To change temperature format: ❑ Press once. Run ❑ Press Time to move to next feature or Program to return to main display. 69-1532 12 Time Format (Feature Number 16) Time format options are: 0 = 12-hour clock (preset). 1 = 24-hour clock. M18753 To change time format: ❑ Press once. Run ❑ Press Program to return to main display. Heating Temperature Range Stops (Feature Number 34) Temperature range options are: 90 = highest setting for heating setpoint (preset) 40 to 89 = temperature range (1°F increments) heating setpoint can be set to. M18748 Cooling Temperature Range Stops (Feature Number 35) Temperature range options are: 45 = lowest setting for cooling setpoint (preset) 46 to 99 = temperature range (1°F increments) cooling setpoint can be set to. M18749 Factory Set Function (Feature Number 37) Do not change this setting. STEP 9. SET THE CLOCK M18754 Set Current Day and Time NOTE: On initial power-up, the screen flashes 1:00 pm until you press a key. Set Current ❑ Press Day/Time . ❑ Press Day until screen shows current day. Set Current ❑ Press Time or until screen shows current time. (Tapping the Day/Time will advance the time in one hour increments). 13 69-1532 Daylight ❑ Press Time until “DST” displays if daylight savings time is in effect. Run ❑ Press Program . STEP 10. PROGRAMMING The keyboard is located behind the thermostat cover. The three most frequently used keys are near the display. Pressing displays the current temperature settings. Pressing the and keys change the temperature. The thermostat displays day, time, program period, temperature, system and fan settings. There is an individual key for each of the four program periods: Wake —The program period when you want the house at a comfortable temperature when you get up and while you get ready for work or school. (This is a higher temperature during the heating season and a lower temperature during the cooling season). Leave —The program period you can set for an energy-saving temperature while you are away at work or school. (This is a lower temperature during the heating season and a higher temperature during the cooling season). Return —The program period when you want the house at a comfortable temperature for activities before bedtime. (This is a higher temperature during the heating season and a lower temperature during the cooling season). Sleep —The program period you can set for an energy-saving temperature while you sleeping. (This is a lower temperature during the heating season and a higher temperature during the cooling season). 69-1532 14 Table 3 can be helpful when planning your schedule of time and temperature settings. The thermostat default settings are shown in parentheses ( ). Table 3. Personal Programming Table. Monday Tuesday Wednesday Thursday Friday Saturday Sunday Period Default Setting (Mon) (Tue) (Wed) (Thu) (Fri) (Sat) (Sun) Wake Time (6:00AM) Heata (70°F/21°C) Coolb (78°F/25.5°C) Leave Time (8:00AM) Heata (62°F/16.5°C) Coolb (85°F/29.5°C) Return Time (6:00PM) Heata (70°F/21°C) Coolb (78°F/25.5°C) Sleep Time (10:00PM) Heata (62°F/16.5°C) Coolb (82°F/28°C) a Your heating setpoints cannot be higher than 90°F (32°C) or lower than 40°F (4.5°C). b Your cooling setpoints cannot be higher than 99°F (37°C) or lower than 45°F (7°C). Program the First Day Start by programming the wake time and temperature for one day. ❑ Press and release Wake . ❑ Press Day until the desired day displays. (Mon, Tue, Wed, Thu, Fri, Sat, Sun) ❑ Press time or until the desired time shows in the display. 15 69-1532 NOTE: Program times are in 15 minute intervals. For example, 8:00, 8:15, 8:30. ❑ Press or until the desired wake temperature displays. The setpoint temperature range is 40°F to 90°F (4.5°C to 32°C) for heating and 45°F to 99°F (7°C to 37°C) for cooling. Heat/Cool ❑ Press Settings to switch between setpoints. NOTE: Program times are the same for heating and cooling. ❑ Press or until the display shows the desired temperature setpoint. ❑ Press Leave , Return or Sleep and repeat these steps for each program period. The First Day is now programmed. ❑ Repeat each step in Program the First Day for the rest of the week. NOTE: After the first day is programmed, you can copy that day to any other day using procedure in Copy a Day. Run ❑ Press Program when the entire week is programmed. Copy a Day Your thermostat can copy program settings from one day to another. ❑ Press Wake , Leave , Return or Sleep to enter programming mode. ❑ Press Day until the display shows the day you want to copy. ❑ Press Copy . The display shows. Mon M13327 69-1532 16 ❑ Press Day until the display shows the day you want to copy to. Mon Wed M13328 ❑ Press Copy to accept the change. ❑ Repeat these steps for each day you want to copy. NOTE: donE appears for two seconds and then the normal program display appears. M13329 Clear a Program Period NOTE: Wake cannot be cleared. ❑ Press Leave , Return , or Sleep for the program period you want to clear. ❑ Press Day until the desired day displays. ❑ Press and hold the Leave , Return , or Sleep for approximately 3 seconds until the time and temperature clear. ❑ Repeat the above steps for each period to be cleared. Run ❑ Press Program . STEP 11. OPERATING YOUR THERMOSTAT Change Temperature Setting Until the Next Program Period (Temporary Change) ❑ Press or until the screen shows the desired temperature setting. NOTE: The temporary temperature setting is displayed for about 3 seconds and then the room temperature is dis- played. Temporary appears in the display. The setting cancels when the next program period starts or when Run you press Program . 17 69-1532 Change Temperature Setting Indefinitely (Hold) ❑ Move the System switch to the desired position (Heat or Cool). ❑ Press Hold Temp then or to change your setting if desired. (The display changes from showing the setpoint temperature to room temperature after approximately three seconds). Run ❑ To cancel “Hold” press Program . Change the Temperature Setting Until a Designated Day and Period (Vacation Hold) ❑ Press Hold Temp twice. ❑ Press or until the display shows the desired temperature setpoint. ❑ Press Time until the desired number of days that you will be away (1 through 255) is displayed. ❑ Press Wake , Leave , Return or Sleep to select the program period when you want the program to restart. Run NOTE: If the Vacation Hold needs to be cancelled before the designated time, press Program to return to the program. Daylight Savings Time Key This feature allows you to switch between standard time and daylight savings time. Daylight ❑ Press Time during fall to set the time back one hour. Daylight ❑ Press Time during the spring to set time forward one hour. DST is displayed when operating on daylight savings time. NOTE: Pressing the Daylight Time key more than once in a five minute period scrolls you through various time option. For example, one hour earlier or later, with or without DST. Pressing Daylight Time six times in a five minute period returns you to your original setting. 69-1532 18 STEP 12. SET THE FAN AND SYSTEM SWITCHES First set the fan switch. Fan On: The fan runs continuously. Use for improved air On Auto circulation or for more efficient central air cleaning. (In a heat-only system, fan runs continuously only if fan relay is Fan connected to the G thermostat terminal). Fan Auto: Normal setting for most homes. The equipment controls the fan operation. On Auto Fan Then set the system Heat: The thermostat controls your heating system. switch. Heat Off ol Co System Off: Both the heating and air conditioning systems are off. Heat Off Cool System Cool: The thermostat controls your air conditioning system. Heat Off ol Co System IF YOU HAVE A PROBLEM Table 4. Solution Guide. If... Then… Display does not appear. • Make sure the batteries are installed correctly. • Make sure the thermostat is mounted and latched on the wallplate. Mount and latch the thermostat on the wallplate if it is not. Temperature settings will not change • Make sure the temperature setpoints are: (example; cannot set the heating higher 40 to 90°F (4.5 to 32°C) for heating. or the cooling lower). 45 to 99°F (7 to 37°C) for cooling. • Check Customize Your Thermostat section feature numbers 34 and 35. Reset as necessary. 19 69-1532 Table 4. Solution Guide. If... Then… Heating does not come on. • Make sure the heating setpoint is above the room temperature. • Make sure the circuit breaker is not tripped, and reset it if necessary. • Make sure the power switch at the equipment is in the On position, and set it to On if it is in the Off position. • Wait five minutes for the system to respond. • Set the system switch to Heat. Cooling does not come on. • Make sure the cooling setpoint is below the room temperature. • Make sure the circuit breaker is not tripped, and reset it if necessary. • Make sure the system switch at the air conditioner is in the On position, and set it to On if it is in the Off position. • Wait five minutes for the system to respond. • Set the system switch to Cool. Wait five minutes after seeing the flame or snowflake and check the System on indicator( = heat, = registers again. If no there is no hot or cool air coming from the registers, cool) is lit, but no warm or cool air is refer to Heating does not come on or Cooling does not come on. If all of this coming from the registers. has been checked, contact your local heating and cooling contractor. Display flashes during programming. The temperature setting limit has been reached. The heating setting range is 40°F to 90°F (4.5°C to 32°C). The cooling setting range is 45°F to 99°F (7°C to 37°C). Temperature change occurs at the 1. Check the program times for the period in question. wrong times. 2. Make sure the AM and PM settings are correct. 3. Make sure the current time and day settings are correct. 4. Reprogram any incorrect settings. NOTE: If your thermostat is set for Smart Response™ technology, the start times occur before your programmed comfort periods. Thermostat backlight appears dim. • Wait until Replace Battery indicator is illuminated and replace batteries. • Replace batteries now. 69-1532 20 Toll-Free Customer Assistance Please read and follow the provided instructions for this thermostat. If you have questions regarding this thermostat please visit our web site at www.honeywell.com/yourhome, or call the 24-hour automated information line at 1-800- 468-1502. Before calling, please have the following information available: • Thermostat model number. (Located on back of thermostat). • Thermostat date code. (Located below model number). • Type of heating/cooling system (for example, hot water, warm air, oil, or gas). • Location and number of wires connected to the thermostat. SMART RESPONSE™ TECHNOLOGY Your CT8602 is actually a small computer. The Smart Response technology calculates the correct time of day to turn on your heating or cooling system. Smart Response technology considers the following information. • Air temperature. • Wall temperature. • The time of day when you want the comfort temperature established. When the thermostat activates Smart System Operating in Comfort Mode Response technology, the thermostat AM 68°F Room Mon Wake displays In Recovery, changes the System Recovery Heat setpoint, and turns on the system. Continues AM ° Room • Your CT8602 thermostat learns from 66 F Mon Heat Sleep In Recovery System Recovery Heat experience. Each day it checks how Begins 1 closely it hit the recovery target and then AM 64°F Room Mon Heat Sleep In Recovery System adjusts the next day’s recovery start TEMPERATURE System Operating in Heat time accordingly. Energy Savings Mode AM 62°F Room • It takes a few days after installation for Mon Sleep System Heat the thermostat to adjust to the local 5:005:30 6:00 6:30 weather, your lifestyle, the construction ENERGY COMFORT RECOVERY FROM ENERGY SAVINGS of your home, and your heating/cooling SAVINGS PERIOD PERIOD system. TIME THERMOSTAT USES THE SAME SCHEME TO RETURN TO LOWER COMFORT TEMPERATURE DURING • You can turn off Smart Response THE COOLING SEASON. technology by selecting Conventional 1 IF In Recovery IS DISPLAYED, PRESS TO SEE THE COMFORT SETPOINT. M18591 Recovery. See Step 8. Customize Your Thermostat. 21 69-1532 WIRING DIAGRAMS 4-WIRE HEAT/COOL 2-WIRE HEAT-ONLY (JUMPER INTACT) (JUMPER INTACT) THERMOSTAT THERMOSTAT B B RC OW Y RC OW Y R G R G HEATING COOLING FAN HEATING RELAY OR CONTACTOR RELAY 1 RELAY OR VALVE COIL COIL VALVE COIL 1 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND 1 POWER SUPPLY. OVERLOAD PROTECTION AS REQUIRED. PROVIDE DISCONNECT MEANS M10617 AND OVERLOAD PROTECTION AS REQUIRED. M10616 4-WIRE SINGLE-STAGE HEAT PUMP (JUMPER INTACT) 3-WIRE HEAT ONLY WITH FAN (JUMPER INTACT) THERMOSTAT B THERMOSTAT RC OW Y B R G RC OW Y R G 3 2 COMPRESSOR HEAT CHANGEOVER CONTACTOR VALVE 2 HEATING RELAY OR FAN 1 COOL FAN RELAY 1 CHANGEOVER VALVE COIL VALVE RELAY 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. OVERLOAD PROTECTION AS REQUIRED. 2 M10618 USE EITHER O OR B FOR HEAT PUMP CHANGEOVER. 3 USING A JUMPER WIRE (NOT SUPPLIED) CONNECT W TO Y. M12739 69-1532 22 5-WIRE HEAT/COOL 5-WIRE HEAT/COOL WITH DAMPER (JUMPER REMOVED) (JUMPER INTACT) THERMOSTAT THERMOSTAT B B RC OW Y RC OW Y R G R G HEATING FAN COOLING HEAT HEAT COMPRESSOR RELAY OR RELAY CONTACTOR DAMPER RELAY CONTACTOR VALVE COIL COIL 1 1 COOL FAN DAMPER RELAY 1 1 POWER SUPPLY. PROVIDE 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD DISCONNECT MEANS AND PROTECTION AS REQUIRED. M10619 OVERLOAD PROTECTION AS REQUIRED. M18738 Notice: This thermostat is a Class B digital apparatus that complies with Canadian Radio Interference Regulations, CRC c. 1374. 23 69-1532 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 Honeywells 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 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 malfunction, and mail it, postage prepaid, to the following address: Honeywell Return Goods Honeywell Canada: Dock 4 — MN10-3860 Honeywell Limited/Honeywell Limitée 1885 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, Ontario M1V 4Z9 This warranty does not cover removal or reinstallation costs. 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 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 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 Customer Assistance, Honeywell, 1885 Douglas Drive North, Golden Valley, MN 55422-4386. In Canada, write Retail Products ON30 Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9. Home and Building Control Home and Building Control Honeywell Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, Ontario M1V 4Z9 Printed in U.S.A. on recycled 69-1532 J.H. 04-01 paper containing at least 10% www.honeywell.com/yourhome post-consumer paper fibers.

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