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How To Program T8635l Thermostat 2 Questions
house bought a year ago has a T8635L thermostat and had never had a reason to program it till now......
(Posted by harakimc 11 years ago)

Popular Honeywell T8635L Manual Pages

Owner's Manual - Page 1

T8635L Microelectronic Communicating Programmable Thermostat USER'S GUIDE 1 696-91-313323-2-4
Owner's Manual - Page 3

... USING THIS GUIDE ...5 FEATURES ...6 KEYBOARD AND DISPLAY DESCRIPTION ...7 Keyboard ...7 Display ...7 ADAPTIVE INTELLIGENT RECOVERY™ CONTROL 10 Optimum Comfort and Energy Savings 11 OPERATING YOUR THERMOSTAT ...13 Setting System and Fan Keys ...13 Setting the System Key ...14 Setting the Fan Key ...14 Setting Temporary Temperatures ...15 Changing Temperature to Temporary Setting Until...
Owner's Manual - Page 4

... Override Temperature Indicator ...25 SETTING THE CLOCK ...26 Set Current Day and Time ...26 Daylight Saving Time ...28 PROGRAMMING YOUR THERMOSTAT ...29 7-Day Program and Operation ...29 7-Day Preprogrammed Schedule ...30 Customizing Your Own 7-Day Schedule ...31 Programming the First Day ...32 Copying a Day ...37 Clearing a Program Period ...40 TROUBLESHOOTING ...42 WARRANTY ...45 CUSTOMER...
Owner's Manual - Page 6

... to fit your needs. • Temporary schedule override-set the thermostat higher or lower for the current program schedule. • Permanent schedule override-set the thermostat higher or lower indefinitely. • Vacation mode (1 to activate this feature. • Optional outdoor temperature display-ask your installer to install an outdoor temperature sensor to 255 days) for added...
Owner's Manual - Page 8

Thermostat keyboard description. INCREASE RAISES TEMPERATURE SETTING DECREASE LOWERS TEMPERATURE SETTING INFORMATION DISPLAYS CURRENT HEAT/COOL TEMPERATURE SETTING AND OUTDOOR TEMPERATURE (WHEN INSTALLED). RETURN SET RETURN TIMES AND TEMPERATURES SLEEP SET SLEEP TIMES AND TEMPERATURES PROGRAM SCHEDULING WAKE LEAVE RETURN SLEEP ENTERS PROGRAMMING MODE FAN SELECTS AUTO/ON SYSTEM SELECTS HEAT/...
Owner's Manual - Page 9

... Days Temporary SHOWS FILTER TIMER EXPIRED (TIME TO REPLACE FILTER) MonTueWedThuFriSatSun Room Wake Leave Return Sleep DST SHOWS TEMPERATURE SETTING CHANGED FOR THIS PROGRAM PERIOD Setting System Em Heat Off Cool Auto Fan On Auto SHOWS TEMPERATURE DISPLAYED IS THE CURRENT SET TEMPERATURE SHOWS THAT THERMOSTAT IS CALLING FOR HEAT OR COOL SHOWS CURRENT SYSTEM...
Owner's Manual - Page 10

... air temperature, wall temperature, and the time you know when the system is reached without overshooting the setting. Humans feel differences in the morning). The system runs continuously until the comfort temperature you . The thermostat acts like a computer. Recovery AM System Em Heat Fan Mon Room Sleep Heat Auto M14561 Fig. 3. Common...
Owner's Manual - Page 13

... while you are away. See equipment manufacturer instructions. 13 69-1332-4 To avoid possible compressor damage, allow the compressor to remain off for five minutes before restarting. OPERATING YOUR THERMOSTAT Your new thermostat saves energy and keeps you comfortable at a specific temperature while you go on your thermostat and how to use some more time...
Owner's Manual - Page 14

... the desired system (Heat, Off, Cool, or Auto) displays. Off: Both the heating and cooling are off . Cool: The thermostat controls the cooling. Compressor is calling for this case, changing any thermostat system setting on the indoor temperature. Cooling system is not available in zoned systems when using the W8703 and W8635 Zone...
Owner's Manual - Page 17

...; to cancel hold. Heat Auto M14565 Press Hold Temp key once to the room temperature after approximately three seconds. Example display shows temporary heat setting of 60°. Changing and Holding Temperature Setting Indefinitely 1. Hold Temp Setting System Heat 2. Fan NOTE: The display changes from the setpoint to display the thermostat in Hold mode.
Owner's Manual - Page 18

... Hold Temp key twice. Example display shows temporary heat setting of vacation days. Changing Temperature Setting Until a Designated Day and Period (Vacation Hold) When setting Vacation Hold at any ZONING thermostat, all thermostats automatically change to Vacation Hold except if a thermostat is already set to display the thermostat in Vacation mode. TIME M14833 Press Hold Temp key...
Owner's Manual - Page 20

... Pressed the wrong key? You can always press Run Program to return display to adjust the temperature setting, if desired (for example, if cool is above 84°F). Press increase ▲ or decrease ▼ to ... designated time, press Run Program key at 84°, cooling equipment operates when the room temperature is set at each thermostat. Don't worry! 5. Heat/Cool...
Owner's Manual - Page 43

... is above room temperature. pump only). See Heat Pump Operating Instructions or call your local heat pump dealer for assistance. Cooling setpoint is below room temperature. No power to Cool. Troubleshooting (Cont) Symptom Possible Cause Cooling does not come on. Set System selection to the thermostat. System selection is not set to respond (thermostat displays " Wait").
Owner's Manual - Page 44

... register. is flashing and there is connected incorrectly. When using the thermostat in this option. Action Contact installer or service technician. 1 COM, 2 COM, or 3 COM is on early... on to meet the temperature set for all other zones to communicate with the equipment interface module located at the furnace. Troubleshooting (Cont) Symptom Outdoor temperature not...
Owner's Manual - Page 47

CUSTOMER ASSISTANCE After reading this guide, if you have any questions about the operation of your local heating and cooling contractor. 47 69-1332-4 For service, contact your thermostat, please visit the Honeywell website at www.honeywell.com/yourhome.

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