Honeywell T8665E - Manuals

69-1538 6 Fig. 2. Example of thermostat display. Auto System Fan Off Wait Wake Mon AM Filter Days On DST Tue Wed Thu Fri Sat Sun Repl Batt Room Leave Return Sleep Recovery Set Program Set Day/Time Em Ht Aux Ht Hi Med LoCriticalHold for Temporary Setting Em Heat M20894 DISPLAYS EITHER CURRENTTIME OF ...

7 69-1538 THERMOSTAT FEATURES • Adaptive Intelligent Recovery™ Control for comfort and energy savings. • Customize the program schedule— program your own schedule to fit your needs. • Temporary schedule override—set the thermostat higher or lower for the current program schedule. • Permanent schedul...

69-1538 8 Special Energy Saving Features The EnergyPro™ Thermostat supports Demand Response and Price Response Programs from your Energy Utility. If you have any questions concerning the application of this thermostat or these special programs and features, please contact your local Energy Utility. ...

9 69-1538 Pre-Cool and Pre-Heat Your Energy Utility may decide to use the Pre-cool /Pre-heat feature to slightly raise or lower your home temperature setting immediately prior to a Demand Response event to minimize the effect on your comfort. When the Pre-heat or Pre-cool option is in effect, the th...

11 69-1538 My Choice There may be times when you need to cancel an energy-saving event such as Demand Response, Pre-heat or Pre-cool. Your Energy Utility may offer a program that incorporates the My Choice feature. To use My Choice and cancel an energy-saving event, press and hold Run Program key fo...

69-1538 12 even program the thermostat to return to your regular programming schedule on your last day of vacation so you are comfortable when you return and yet save energy while you are away. SETTING THE CLOCK Setting Current Day and Time IMPORTANT Always press keys with your fingertip or similar ...

69-1538 14 Daylight Saving Time NOTE: If current time is Daylight Saving Time, press Daylight Time key to display “DST.” Press Daylight Time key to set Daylight Saving Time. Pressing Daylight Tiime key more than once in a five-minute period scrolls you through various time options (example: one-hour...

15 69-1538 CAUTION Equipment Damage Hazard. Can cause permanent damage to the compressor or other equipment. To avoid possible compressor damage, allow compressor to remain off for five minutes before restarting. To avoid possible equipment damage, do not operate cooling when outside temperature is ...

69-1538 16 Setting Fan Key Press Fan key until desired mode (On or Auto) displays: On: Fan operates continuously.Auto: Fan operates only when heating or cooling. Setting Temporary Temperatures You can override the current schedule period to temporarily change the temperature setting until the next s...

19 69-1538 IMPORTANT To cancel Vacation Hold before desig- nated time, press Run Program key. 2. Press Time ∆ or Time ∇ until desired number of days (1 to 255 days) displays. Press Time ∆ or Time ∇ key to select number of vacation days. Example display shows 18 vacation days. 3. Press Wake, Leave, R...

21 69-1538 Using the i (Information) Key The i (information) key provides information at your fingertips in this sequence of key presses: • Outdoor temperature (if equipped). • Current setpoint of mode in use (Heat or Cool). • Setpoint of mode not currently in use. • Filter status. If filter status ...

69-1538 22 If filter status is expired, press i key twice to display outdoor temper- ature. See Filter Indicator section for instructions on resetting filter indicator. Displaying Current Settings Press i key twice to check current temperature setpoint. Press i key three times to check temperature s...

23 69-1538 Filter Indicator Your thermostat monitors the amount of time the fan is running and lets you know when to replace the filter, based on the number of fan run-time days you select. On expiration, thermostat displays “Filter.” One fan run-time day equals 24 fan run-time hours. (If fan is on ...

25 69-1538 Heat Pump Fault Monitor LED lights red when heat pump failure is detected. Switch thermostat to Em. Ht. and contact you heat pump service com- pany. Heating with Em. Ht. is expensive, so act quickly. Successful Communication Indicator The thermostat periodically sends and receives message...

69-1538 26 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 heating season and a cooler temper- ature during cooling season.) LEAVE—The program period you can...

69-1538 28 Customizing Your Own 7-Day Schedule Table 2. Your 7-Day Schedule. Day WAKE LEAVE RETURN SLEEP SUN TIME FAN H AUTO C ON TIME FAN H AUTO C ON TIME FAN H AUTO C ON TIME FAN H AUTO C ON MON TIME FAN H AUTO C ON TIME FAN H AUTO C ON TIME FAN H AUTO C ON TIME FAN H AUTO C ON TUES TIME FAN H AUT...

69-1538 30 Programming the First Day To modify the preprogrammed schedule, start by programming the Wake time and temper- ature and fan operation for any one day. 1. Press the Wake key. Press Wake key to enter program mode. Example display shows 6:00 AM Tuesday with Heat set to 70°F. 2. Press Day ke...

33 69-1538 7. Press increase or decrease key until desired temperature setpoint displays. Press increase or decrease to select cooling Wake temperature. Example display shows cooling Wake period set for 76°. 8. Press Leave, Return or Sleep and repeat steps 3 through 6 to program entire day. The day ...

69-1538 34 1. Press Wake, Leave, Return or Sleep key to enter program mode. 2. Press Day key to select the day to copy from. Press Day key to select the day schedule to copy. Example display shows thermostat in program mode with Monday ready to be copied. 3. Press Copy key. Press Copy key to copy a ...

69-1538 36 Clearing a Program Period Thermostat must be in program mode to use clear feature. Go to step 2 if thermostat is already in program mode (Set Program displays in upper left corner. 1. Press Leave, Return or Sleep key to enter program mode. Press Leave, Return, or Sleep to enter the progra...

69-1538 38 REPLACING THE BATTERIES (T8665C ONLY) IMPORTANT Three AA alkaline batteries are included with the thermostat. Batteries must be installed for programming and operation of the thermostat and the heating/cooling system. 1. Install batteries in wallplate so positive terminals all point up (a...

69-1538 42 Fig. 3. Explanation of Adaptive Intelligent Recovery™ control. At 4:00 AMRecovery Begins At 5:00 AMRecovery Continues At 6:00 AMRecovery Continues At 7:00 AM System Operating in Comfort Mode ENERGYSAVINGSPERIOD RECOVERY FROM ENERGY SAVINGS COMFORTPERIOD TIME TEMPERATURE THE THERMOSTAT USE...

69-1538 50 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 ...

51 69-1538 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 limit...

69-1538 G.H. 04-03 www.honeywell.com/yourhome Printed in U.S.A. on recycled paper containing at least 10% post-consumer paper fibers. Automation and Control Solutions Honeywell International Inc. Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Sc...