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Honeywell T8665A manual

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Table of contents for the manual

  • Page 1

    1 69-1536–3 USER’S GUIDE T8665A Chronotherm ® IV W ireless Thermostat 69-1536-3[...]

  • Page 2

    2 69-1536–3[...]

  • Page 3

    3 69-1536–3 CONTENTS USING THIS GUIDE ............................................................................................................... ........................... 5 FEA TURES ....................................................................................................................... ................................. 6 KE[...]

  • Page 4

    4 69-1536–3 Contents (Cont) Using the (Information) Key .............................................................................................. ........................... 23 Display Current Setting ........................................................................................................ ......................... 23 Display [...]

  • Page 5

    5 69-1536–3 USING THIS GUIDE The T8665A is a multi-functional thermostat. This means it can be used in single or multi-zone applications. The following symbols will help you identify the features that apply to your system: – T riple layer of thermostats with the word, zoning, below . These features are available when more than one thermostat is[...]

  • Page 6

    6 69-1536–3 FEA TURES • Adaptive Intelligent Reco very TM Control for comf or t and energy savings. • Customize the program schedule—program your own schedule to fit your needs. • T emporar y schedule o verride—set the ther mostat higher or lower for the current program schedule. • Permanent schedule override—set the thermostat high[...]

  • Page 7

    7 69-1536–3 KEYBOARD AND DISPLA Y DESCRIPTION Keyboard The keyboard is located behind the thermostat cover . Three frequently used keys, increase ▲ or decrease ▼ and , are located next to the display . See Fig. 1. Display The thermostat displays important information such as day , time, schedule period, temperature, system and fan operation. [...]

  • Page 8

    8 69-1536–3 Fig. 1. Thermostat keyboard description. M20146 Time Set Program Run Program Hold Temp Set Current Day/Time Day Heat/Cool Settings Wake Fan System Copy Daylight Time Leave Return Sleep INCREASE RAISES TEMPERATURE SETTING DECREASE LOWERS TEMPERATURE SETTING INFORMATION DISPLAYS CURRENT HEAT/COOL TEMPERATURE SETTING PROGRAM SCHEDULING W[...]

  • Page 9

    9 69-1536–3 Fig. 2. Example of thermostat display . A u t o System F an O f f A u t o Wake Mon Room AM Recovery Hold for Filter Days On DST C oo l TueWed Thu FriSatSun Leave Return Sleep Set Program Set Day/Time Wait Temporary Setting Heat M20886 DISPLAYS EITHER CURRENT TIME OF DAY OR PROGRAM TIMES SHOWS THERMOSTAT IS IN THE SET CURRENT DAY/TIME [...]

  • Page 10

    10 69-1536–3 ADAPTIVE INTELLIGENT RECOVER Y TM CONTROL Y our new thermostat is so smart, it’s almost human. Y ou perceive temperature from a variety of sources, not only from the air in the room, but also from your surrounding walls, windows and furnishings. Humans feel differences in temperature as slight as two degrees Fahrenheit. Common hous[...]

  • Page 11

    11 69-1536–3 After installation or new schedule programming, your thermostat learns from experience. Each day it checks how closely it hit the recovery target (for example, 70 ° at 6:00 AM) and adjusts the next day’s recovery start time accordingly . After four to eight days, the thermostat has adjusted to local weather , your lifestyle, the c[...]

  • Page 12

    12 69-1536–3 Fig. 4. Explanation of Adaptive Intelligent Recovery TM control. At 4:00 AM Recovery Begins At 5:00 AM Recovery Continues At 6:00 AM Recovery Continues At 7:00 AM System Operating in Comfort Mode ENERGY SAVINGS PERIOD RECOVERY FROM ENERGY SAVINGS COMFORT PERIOD TIME TEMPERATURE THE THERMOSTAT USES THE SAME SCHEME TO RETURN GRADUALLY [...]

  • Page 13

    13 69-1536–3 OPERA TING YOUR THERMOST A T Y our new thermostat saves energy and keeps you comfortable at the same time. By now you may be wondering how to program your thermostat and how to use some more time and energy-saving features. First, let’s look at features you’ll be using often, like setting the System and Fan keys, how to override [...]

  • Page 14

    14 69-1536–3 Setting the System Key Press the System key until the desired system (Heat, Off, Cool, or Auto) displays. Heat: The thermostat controls the heating. Off: Both the heating and cooling are of f. Cool: The thermostat controls the cooling. Auto: The thermostat automatically changes between heating and cooling operation, depending on the [...]

  • Page 15

    15 69-1536–3 Setting T emporary T emperatures Y ou can override the current schedule period to temporarily change the temperature setting until the next schedule period, or you can change and hold the temperature setting indefinitely . Y ou can also change the temperature setting until a designated day and period (for example, while you are on va[...]

  • Page 16

    16 69-1536–3 Press the Run Program key to cancel the temporary temperature setting before the designated time. Run Program M14564 Mon System Fan Heat Auto AM Heat Temporary After selecting a temporary setting, the display reads “T emporary” until canceled. Example display shows temporary heat setting of 70 ° at 6:00 AM. If ▲ or ▼ appears[...]

  • Page 17

    17 69-1536–3 M14565 System Fan Heat Auto Heat Setting Changing and Holding T emperature Setting Indefinitely 1. Press Hold T emp key once. 2. Press increase ▲ or decrease ▼ to change the tempera- ture setpoint, if desired. NOTE: The display changes from the setpoint to the room temperature after approximately three seconds. Press Run Program [...]

  • Page 18

    18 69-1536–3 Changing T emperature Setting Until a Designated Day and Period (V acation Hold) Hold Temp Press the T ime or Time key to select the number of vacation days. Example display shows 18 vacation days. TIME M14833 Wake System Fan Heat Auto Hold for Heat Days Setting ZONING M14834 Wake System Fan Heat Auto Hold for Heat Days Setting When [...]

  • Page 19

    19 69-1536–3 Press Wake, Leave, Return or Sleep key to select the period the Hold ends. M14571 System Fan Heat Auto Hold for Heat Days Setting Return 4. Press increase ▲ or decrease ▼ to adjust the tempera- ture setting, if desired. NOTE: Only the heating temperature is used when the System is set to Heat. Similarly , only the cooling tempera[...]

  • Page 20

    20 69-1536–3 5. Press Heat/Cool Settings key to change between heat and cool settings. 6. Press increase ▲ or decrease ▼ to adjust the temperature setting, if desired (for example, if cool is set at 84 ° , cooling equipment operates when the room temperature is above 84 ° F). T o cancel the V acation Hold before the designated time, press R[...]

  • Page 21

    21 69-1536–3 Replacing the Batteries This thermostat uses three AA alkaline batteries. Batteries must be installed for programming and operation of the thermostat and heating (cooling system). The batteries are located in the wallplate. See illustration. M10622 INSTALL 3 AA ALKALINE BATTERIES AS SHOWN, POSITIVE (+) TERMINALS TOWARD TOP. WALLPLATE[...]

  • Page 22

    22 69-1536–3 2. Remove the thermostat by placing your thumb between the thermostat and wallplate and pulling the thermostat up and away as shown. M16424 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 incor[...]

  • Page 23

    23 69-1536–3 Using the (Information) Key The (information) key provides information at your fingertips. The sequence of key presses is: • Current setpoint of mode in use (Heat or Cool). • Setpoint of mode not currently in use. Displaying Current Settings Press key once to check the current temperature setpoint. Press key twice to check the te[...]

  • Page 24

    24 69-1536–3 Display or Reset Filter T imer Settings 2. Press the T imer ▲ key to reset the timer . 3. Press the Run Program key . Note: Y ou can view the number of days remaining at any time by pressing the i key three or four times. If more than one timer is active, all active timers show sequentially when pressing the i key several times. If[...]

  • Page 25

    25 69-1536–3 SETTING THE CLOCK Setting Current Day and Time On initial power up or after an extended power loss, “1:00 PM” flashes on the display until a key is pressed. 1. Press Set Current Day/T ime key . Press Set Current Day/Time key to show information displayed. Set Current Day/Time M14580 Set Day/Time Mon PM IMPORT ANT Always press the[...]

  • Page 26

    26 69-1536–3 3. Press T ime or Time key until the current time displays. T ap the Set Current Day/Time key to advance the time in one-hour increments. 4. Press Run Program key to return to normal operation. 2. Press Day key until the current day displays. Mon = Monday , T ue = T uesday , Wed = Wednesday , Thu = Thursday , Fri = Friday , Sat = Sat[...]

  • Page 27

    27 69-1536–3 Daylight Saving T ime NOTE: If the current time is Daylight Saving T ime, press Daylight T ime key to display “DST .” Daylight Time M14583 Set Day/Time AM DST Tue Press Daylight T ime key to set Daylight Saving Time. Pressing Daylight T ime key more than once within a five minute period scrolls you through various time options (e[...]

  • Page 28

    28 69-1536–3 PROGRAMMING YOUR THERMOST A T 7-Day Program and Operation Y our thermostat is 7-day programmable. 7-day programming means you can set your thermostat for four periods (W ake, Leave, Return and Sleep) and up to eight temperatures (four Heat and four Cool) for each day of the week. Each day can be the same or different. Program Periods[...]

  • Page 29

    29 69-1536–3 7-Day Preprogrammed Schedule Y our thermostat is preprogrammed with the schedule shown in T able 1 (same schedule for all days of the week). Y ou may keep this schedule or develop your own. Before starting the programming procedure, use T able 2 to plan your schedule. Instructions: 1. W rite the time you want for each program period.[...]

  • Page 30

    30 69-1536–3 Customizing Y our Own 7-Day Schedule T able 2. Y our 7-Day Schedule. WAKE LEAVE RETURN SLEEP SUNDAY TIME FAN AUTO O N H C TIME FAN AUTO O N H C TIME FAN AUTO O N H C TIME FAN AUTO O N H C MONDAY TIME FAN AUTO O N H C TIME FAN AUTO O N H C TIME FAN AUTO O N H C TIME FAN AUTO O N H C TUESDAY TIME FAN AUTO O N H C TIME FAN AUTO O N H C [...]

  • Page 31

    31 69-1536–3 About Power Outages… Don’t worry! Y our thermostat retains the schedule (preprogrammed or your own) for the life of the product. The time and day information is retained for a minimum of twenty minutes during a power outage. After a longer power outage, you may need to set the current time and day (“1:00 PM” flashes on the di[...]

  • Page 32

    32 69-1536–3 1. Press the W ake key . M14586 Set Program Wake System Fan Heat Auto AM Heat Tue Setting Press the W ake key to enter the program mode. Example display shows 6:00 AM on T uesday with Heat set to 70 ° F. M14588 Set Program Mon Wake System Fan Heat Auto AM Heat Setting Day Press Day key to select the day to program. Example display s[...]

  • Page 33

    33 69-1536–3 3. Press T ime or T ime key until the desired W ake time displays. The program times are in fifteen-minute intervals; for example, 8:00, 8:15, 8:30. Press the T ime or Time key to select the time the W ake period will begin. Example display shows the W ake period will begin at 6:30 AM. M14589 Set Program Mon Wake System Fan Heat Auto[...]

  • Page 34

    34 69-1536–3 5. Press Fan key to modify fan operation. Selecting Auto means the fan runs only when the heating or cooling equipment is operating. Selecting On means the fan runs continuously for the entire schedule period. 6. Press Heat/Cool Settings key to make selections for the opposite system setting (either Heat or Cool). Fan Heat/Cool Setti[...]

  • Page 35

    35 69-1536–3 7. Press increase ▲ or decrease ▼ key until the desired temperature setpoint displays. M14592 Set Program Mon Wake System Fan Heat Auto AM Cool Setting Press increase ▲ or decrease ▼ to select the cooling W ake temperature. Example display shows the cooling Wake period set for 76 ° . 8. Press Leave, Return or Sleep and repea[...]

  • Page 36

    36 69-1536–3 Copying a Day The thermostat must be in the program mode to use the copy feature. Go to step 2 if the thermostat is already in the program mode (set program displays in the upper left corner). 1. Press W ake, Leave, Return or Sleep key to enter program mode. 2. Press Day key to select the day to copy from. Day M14590 Set Program Mon [...]

  • Page 37

    37 69-1536–3 3. Press Copy key . Press Copy key to copy a day schedule into memory . Example display shows Monday schedule was copied into memory . Day M14595 Mon Wed 4. Press Day key until the day to be copied to is displayed. Copy Press Day key again to select the day to copy to. Example display shows Monday and Wednesday . Because Monday was a[...]

  • Page 38

    38 69-1536–3 6. Repeat steps, as necessary , for all the periods and days desired. 7. Press Run Program key to return to normal operation. 5. Press Copy key . NOTE: “donE” displays for two seconds before the normal display returns. Press the Copy key again to complete the copy command. Example display shows “donE” . Monday schedule was su[...]

  • Page 39

    39 69-1536–3 2. Press Day key until the desired day displays. Clearing a Program Period The thermostat must be in the program mode to use the clear feature. Go to step 2 if the thermo- stat is already in the program mode (Set Program displays in upper left corner). 1. Press Leave, Return or Sleep key to enter program mode. Press Leave, Return, or[...]

  • Page 40

    40 69-1536–3 Y ou do not have to program a replacement time for the remaining periods; for example, W ake and Sleep. If you clear only the Leave and Return periods for Saturday (or any day), the thermostat remains in the W ake period for all of Saturday until the Sleep period. 4. Repeat steps, as necessary , for all the periods to be cleared. 5. [...]

  • Page 41

    41 69-1536–3 TROUBLESHOOTING continued Symptom Possible Cause Action Display does not come on. Thermostat is not being powered. • Check if the batteries are correctly installed. • Check if the thermostat is mounted and latched on the wallplate—mount and latch the thermostat on the wallplate. Temperature setting does not change (Example: can[...]

  • Page 42

    42 69-1536–3 T roubleshooting (Cont) Symptom Possible Cause Action Cooling does not come on. System selection is not set to Cool. Cooling setpoint is above room temperature. Check that setpoint is below room temperature. Check if the circuit breaker is tripped—reset the circuit breaker. Check if the fuse at the fuse box is blown—replace the f[...]

  • Page 43

    43 69-1536–3 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 r[...]

  • Page 44

    44 69-1536–3 W arranty (Cont) THIS W ARRANTY IS THE ONL Y EXPRESS W ARRANTY HONEYWELL MAKES ON THIS PRODUCT . THE DURA TION OF ANY IMPLIED W ARRANTIES, INCLUDING THE WARRANTIES OF MERCHANT ABILITY AND FITNESS FOR A P ARTICULAR PURPOSE, IS HEREBY LIMITED TO THE ONE YEAR DURA TION OF THIS W ARRANTY . Some states do not allow limitations on how long[...]

  • Page 45

    45 69-1536–3 CUSTOMER ASSIST ANCE After reading this guide, if you have any questions about the operation of your thermostat, please contact the Honeywell Customer Relations at www .honeywell.com/yourhome or 1-800-468-1502. For service, contact your local heating and cooling contractor .[...]

  • Page 46

    46 69-1536–3 FCCID: CFS8DL5800ST A T CANADA: 1748A 121 1 1 This device complies with P ar t 15 of the FCC Rules. Operation is subject to the f ollowing two conditions: (1) This de vice may not cause harmful interference, and (2) This device must accept an y interference received, including interf erence that may cause undesired operation. FEDERAL[...]

  • Page 47

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  • Page 48

    69-1536–3 G.H. R e v . 11-02 Printed in U.S.A. Automation and Control Solutions Honeywell 1985 Douglas Drive North Golden Valley, MN 55422 Honeywell Limited-Honeywell Limitée 35 Dynamic Drive Scarborough, Ontario M1V 4Z9 www .honeywell.com/yourhome[...]