Honeywell T8665A Owner's Manual

Honeywell T8665A Manual

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  • Honeywell T8665A | Owner's Manual - Page 1
    T8665A Chronotherm® IV Wireless Thermostat USER'S GUIDE 1 6699--11553366--33
  • Honeywell T8665A | Owner's Manual - Page 2
    2 69-1536-3
  • Honeywell T8665A | Owner's Manual - Page 3
    CONTENTS USING THIS GUIDE ...5 FEATURES ...6 KEYBOARD AND DISPLAY DESCRIPTION ...7 Keyboard ...7 Display ...7 ADAPTIVE INTELLIGENT RECOVERYTM CONTROL 10 Optimum Comfort and Energy Savings ...11 OPERATING YOUR THERMOSTAT ...13 Setting System and Fan Keys ...13 Setting the System Key ...14 Setting
  • Honeywell T8665A | Owner's Manual - Page 4
    or Reset Filter Timer Settings ...24 SETTING THE CLOCK ...25 Set Current Day and Time ...25 Daylight Saving Time ...27 PROGRAMMING YOUR THERMOSTAT ...28 7-Day Program and Operation ...28 7-Day Preprogrammed Schedule ...29 Customizing Your Own 7-Day Schedule ...30 Programming the First Day ...31
  • Honeywell T8665A | Owner's Manual - Page 5
    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: - Triple layer of thermostats with the word, zoning, below. These features are available
  • Honeywell T8665A | Owner's Manual - Page 6
    time. • Backlit display for improved readability - backlighting on demand (press any key to activate). • Programmable Fan - your thermostat can activate the fan in any programming period for improved air circulation and air cleaning when a Honeywell wholehouse air cleaner is installed. 6 69-1536-3
  • Honeywell T8665A | Owner's Manual - Page 7
    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. See Fig
  • Honeywell T8665A | Owner's Manual - Page 8
    TEMPERATURES LEAVE SET LEAVE TIMES AND TEMPERATURES DIGITAL DISPLAY RUN PROGRAM RETURNS THERMOSTAT TO NORMAL OPERATING MODE DAY SETS DAY OF THE WEEK Run Program SAVING TIME Hold Temp Day Daylight Time Heat/Cool Settings Copy System Fan COPY COPIES SETTINGS FROM ONE DAY TO ANOTHER DAY
  • Honeywell T8665A | Owner's Manual - Page 9
    Heat Off Cool Auto Fan On Auto SHOWS TEMPERATURE DISPLAYED IS THE CURRENT SET TEMPERATURE SHOWS THAT THERMOSTAT IS CALLING FOR SHOWS CURRENT SYSTEM KEY POSITION HEAT/OFF/COOL SHOWS CURRENT FAN KEY POSITION ON/AUTO SHOWS CURRENT DAY OR DAYS BEING PROGRAMMED SHOWS CURRENT PROGRAM PERIOD OR PERIOD
  • Honeywell T8665A | Owner's Manual - Page 10
    choose is reached without overshooting the setting. This saves energy. How do you know when the system is in recovery? The thermostat displays "Recovery" whenever the thermostat activates Adaptive Intelligent RecoveryTM control. See Fig. 3. So, "Recovery" displays during the recovery time from Sleep
  • Honeywell T8665A | Owner's Manual - Page 11
    the next day's recovery start time accordingly. After four to eight days, the thermostat has adjusted to local weather, your lifestyle, the construction of your home, and your heating and cooling system. Optimum Comfort and Energy Savings In Fig. 4, Adaptive Intelligent RecoveryTM control starts to
  • Honeywell T8665A | Owner's Manual - Page 12
    Continues Recovery AM Mon Room Sleep System Heat 1 Fan Auto At 7:00 AM System Operating in Comfort Mode System Heat AM Mon Wake Room Fan Auto System Heat Fan Auto ENERGY SAVINGS PERIOD RECOVERY FROM ENERGY SAVINGS TIME COMFORT PERIOD THE THERMOSTAT USES THE SAME SCHEME TO RETURN
  • Honeywell T8665A | Owner's Manual - Page 13
    setting the System and Fan keys, how to override the current programming mode or to hold the thermostat at a specific temperature while you go on vacation. You can even program the thermostat to return outside temperature is below 50°F (10°C). See equipment manufacturer instructions. 13 69-1536-3
  • Honeywell T8665A | Owner's Manual - Page 14
    . Off: Both the heating and cooling are off. Cool: The thermostat controls the cooling. Auto: The thermostat automatically changes between heating and cooling operation, depending on the indoor temperature. Thermostat will satisfy system demand on a first call basis. For example, if zone 2 (any
  • Honeywell T8665A | Owner's Manual - Page 15
    Setting Temporary Temperatures You 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. You can also change the temperature setting until a designated day and period (
  • Honeywell T8665A | Owner's Manual - Page 16
    Press the Run Program key to cancel the temporary temperature setting before the designated time. Run Program Temporary AM System Heat Fan Mon Heat Auto M14564 After selecting a temporary setting, the display reads "Temporary" until canceled. Example display shows temporary heat setting of 70
  • Honeywell T8665A | Owner's Manual - Page 17
    Temp Setting System Heat 2. Press increase ▲ or decrease ▼ to change the tempera- ture setpoint, if desired. Fan NOTE: The display changes from the setpoint to the room temperature after approximately three seconds. Heat Auto M14565 Press Hold Temp key once to display the thermostat in Hold
  • Honeywell T8665A | Owner's Manual - Page 18
    Setting Until a Designated Day and Period (Vacation Hold) ZONING When setting Vacation Hold in a zone system, set all thermostats independently to Vacation Hold. Hold for Setting Days System Heat Fan 1. Press Hold Temp key twice. Hold Temp Wake Heat Auto IMPORTANT To cancel the Vacation
  • Honeywell T8665A | Owner's Manual - Page 19
    is set to Heat. Similarly, only the cooling temperature is used when the System is set to Cool. The thermostat uses both the heating and cooling temperatures when the System is set to Auto. Setting System Heat Hold for Days Fan Return Heat In this example, the Hold ends after the 18th day
  • Honeywell T8665A | Owner's Manual - Page 20
    equipment operates when the room temperature is above 84°F). To cancel the Vacation Hold before the designated time, press Run Program key at each thermostat. ZONING Pressed the wrong key? Want to start over? Don't worry! Run You can always press Program to return display to normal. 20 69
  • Honeywell T8665A | Owner's Manual - Page 21
    battery indicator, replace the batteries once a year to prevent leakage and to prevent the thermostat and heating/cooling system from shutting down due to lack of battery power in the thermostat. WALLPLATE B R RC O W Y G 1. When the batteries are running low, a REPL BAT message flashes from one
  • Honeywell T8665A | Owner's Manual - Page 22
    batteries before leaving to prevent the system from shutting down due to lack of power. Always use fresh alkaline batteries. Nonalkaline batteries do not last as long; they also can leak, causing damage to the thermostat and the wall surface. Honeywell recommends Energizer® batteries. 22 69
  • Honeywell T8665A | Owner's Manual - Page 23
    Current Settings Press key once to check the current temperature setpoint. Press setpoint of the mode not currently in use. AM Room DST System Heat Fan Auto INFORMATION KEY M20150 key twice to check the temperature Cool Press key once to display current setpoint. Example display shows
  • Honeywell T8665A | Owner's Manual - Page 24
    Display or Reset Filter Timer Settings When the thermostat activates a timer, the thermostat flashes Filter until the timer resets. 1. Reset the is not currently activated, check the Installation Instructions at www.honeywell.com/yourhome or call 1-800-4681502. Filter Days M20244 24 69-1536-3
  • Honeywell T8665A | Owner's Manual - Page 25
    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. Mon Set Day/Time PM 1. Press Set Current Day/Time key. Set Current Day/Time Press Set Current Day/Time key to show information
  • Honeywell T8665A | Owner's Manual - Page 26
    2. Press Day key until the current day displays. Day Mon = Monday, Tue = Tuesday, Wed = Wednesday, 60 70 80 90 Thu = Thursday, Fri = Friday, Sat = Saturday, 60 70 80 90 Sun = Sunday. Tue Set Day/Time PM 3. Press Time or Time key until the current time displays. Press Day key to set the
  • Honeywell T8665A | Owner's Manual - Page 27
    Daylight Saving Time NOTE: If the current time is Daylight Saving Time, press Daylight Time key to display "DST." Daylight Time Pressing Daylight Time key more than once 60 70 80 90 within a five minute period scrolls you through 60 70 80 90 various time options (example: one hour earlier or
  • Honeywell T8665A | Owner's Manual - Page 28
    is 7-day programmable. 7-day programming means you can set your thermostat for four periods (Wake, Leave, Return and Sleep) and up to eight temperatures (four Heat and four Cool) for each day of the week. Each
  • Honeywell T8665A | Owner's Manual - Page 29
    Day Preprogrammed Schedule Your thermostat is preprogrammed with the schedule shown in Table 1 (same schedule for all days of the week). You may keep this schedule or develop your own. Before starting the programming procedure, use Table 2 to plan your schedule. Instructions: 1. Write the time you
  • Honeywell T8665A | Owner's Manual - Page 30
    Customizing Your Own 7-Day Schedule SUNDAY MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY TIME FAN H TIME FAN H TIME FAN H TIME FAN H TIME FAN H TIME FAN H TIME FAN H WAKE AUTO C AUTO C AUTO C AUTO C AUTO C AUTO C AUTO C Table 2. Your 7-Day Schedule. TIME ON FAN H TIME ON FAN H TIME ON FAN H
  • Honeywell T8665A | Owner's Manual - Page 31
    About Power Outages... 60 70 80 90 60 70 80 90 Don't worry! Your 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
  • Honeywell T8665A | Owner's Manual - Page 32
    Press the Wake key to enter the program mode. Example display shows 6:00 AM on Tuesday with Heat set to 70°F. Set Program AM Setting System Heat Mon Wake Heat Fan Auto M14588 Press Day key to select the day to program. Example display shows Monday is selected and ready to
  • Honeywell T8665A | Owner's Manual - Page 33
    80 90 for example, 8:00, 8:15, 8:30. Set Program AM Setting System Heat Mon Wake Heat Fan Auto M14589 Press the Time or Time key to and 55 to 99°F (13 to 37°C) for cooling. Set Program AM Setting System Heat Mon Wake Heat Fan Auto M14590 Press increase ▲ or decrease ▼ key to
  • Honeywell T8665A | Owner's Manual - Page 34
    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). Heat/Cool Settings Set Program AM Setting System Heat Mon Wake Cool Fan Auto M14591 Press Heat/Cool Settings key to select the cooling
  • Honeywell T8665A | Owner's Manual - Page 35
    7. Press increase ▲ or decrease ▼ key until the desired temperature setpoint displays. Set Program AM Setting System Heat Mon Wake Cool Fan Auto M14592 Press increase ▲ or decrease ▼ to select the cooling Wake temperature. Example display shows the cooling Wake period set
  • Honeywell T8665A | Owner's Manual - Page 36
    Return Sleep 2. Press Day key to select the day to copy from. Day Set Program AM Setting System Heat Mon Wake Heat Fan Auto M14590 Press Day key to select the day schedule to copy. Example display shows the thermostat in program mode with Monday ready to be copied. 36 69-1536-3
  • Honeywell T8665A | Owner's Manual - Page 37
    3. Press Copy key. Copy Mon M14594 Press Copy key to copy a day schedule into memory. Example display shows Monday schedule was copied into memory. 4. Press Day key until the day to be copied to is displayed. Day Mon Wed M14595 Press Day key again to select the day to copy to. Example display
  • Honeywell T8665A | Owner's Manual - Page 38
    5. Press Copy key. Copy NOTE: "donE" displays for two seconds before the normal display returns. M14596 Press the Copy key again to complete the copy command. Example display shows "donE". Monday schedule was successfully copied to Wednesday (Monday and Wednesday now have the same schedule). 6.
  • Honeywell T8665A | Owner's Manual - Page 39
    Clearing a Program Period The thermostat must be in the program mode 60 70 80 90 to mode. Leave Return Sleep 2. Press Day key until the desired day displays. Day Set Program AM Setting System Heat Mon Leave Heat Fan On M14597 Press Leave, Return, or Sleep to enter the program mode. Example
  • Honeywell T8665A | Owner's Manual - Page 40
    periods; for example, Wake and 60 70 80 90 Sleep. If you clear only the Leave and Return periods for Saturday (or any day), the thermostat 60 70 80 90 remains in the Wake period for all of Saturday until the Sleep period. 4. Repeat steps, as necessary, for all the periods
  • Honeywell T8665A | Owner's Manual - Page 41
    TROUBLESHOOTING Symptom Display does not come on. Possible Cause Thermostat is not being powered. Temperature setting does not change (Example: cannot set the heating higher or the cooling lower). Heating does not come on. The upper or lower temperature limits were reached. System selection is
  • Honeywell T8665A | Owner's Manual - Page 42
    Troubleshooting (Cont) Symptom Cooling does not come on. Possible Cause System selection is not set to Cool. Cooling setpoint is above room temperature. System On position. Wait five minutes for the system to respond (thermostat displays " Wait"). Set System selection to Cool. Wait a minute after
  • Honeywell T8665A | Owner's Manual - Page 43
    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 retailer from which
  • Honeywell T8665A | Owner's Manual - Page 44
    rights, and you may have other rights which vary from state to state. If you have any questions concerning this warranty, please write our Honeywell Customer Relations, 1985 Douglas Drive North, Golden Valley, MN 55422 or call 1-800-468-1502, Monday-Friday, 7:00 a.m. to 5:30 p.m., Central time. In
  • Honeywell T8665A | Owner's Manual - Page 45
    CUSTOMER ASSISTANCE 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. 45 69-1536-3
  • Honeywell T8665A | Owner's Manual - Page 46
    Government Printing Office, Washington, DC 20402. The user shall not make any changes or modifications to the equipment unless authorized by the Installation Instructions or User's Manual. Unauthorized changes or modifications could void the user's authority to operate the equipment. 46 69-1536
  • Honeywell T8665A | Owner's Manual - Page 47
  • Honeywell T8665A | Owner's Manual - Page 48
    Automation and Control Solutions Honeywell Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, Ontario M1V 4Z9 69-1536-3 G.H. Rev. 11-02 Printed in U.S.A. www.honeywell.com/yourhome
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USER’S GUIDE
T8665A Chronotherm
®
IV
Wireless Thermostat
69-1536-3