Owner's Manual
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T8635L Microelectronic Communicating Programmable Thermostat USER'S GUIDE 1 696-91-313323-2-4
T8635L Microelectronic Communicating Programmable Thermostat USER'S GUIDE 1 696-91-313323-2-4
Owner's Manual
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CONTENTS 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 ...
CONTENTS 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 ...
Owner's Manual
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Contents (Cont) Displaying Current Settings ...22 Filter Indicator ...23 Setting or Resetting Filter Indicator ...23 LED Indicators ...25 Remote 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 ASSISTANCE ...47 4 69-1332-4
Contents (Cont) Displaying Current Settings ...22 Filter Indicator ...23 Setting or Resetting Filter Indicator ...23 LED Indicators ...25 Remote 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 ASSISTANCE ...47 4 69-1332-4
Owner's Manual
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These features are available when more than one thermostat is a multi-functional thermostat. Tip symbol. USING THIS GUIDE The T8635L is connected and used with the optional W8703 Damper Interface Module, W8635A, B Equipment Interface Modules, or with the W8835 EnviraZone System. These ...or heat pump equipment. Look for helpful tips throughout the guide when you identify the features that apply to your system: ZONING - Triple layer of thermostats with the word, zoning, below . The following symbols will help you see this symbol. 5 69-1332-4 This means it can be used ...
These features are available when more than one thermostat is a multi-functional thermostat. Tip symbol. USING THIS GUIDE The T8635L is connected and used with the optional W8703 Damper Interface Module, W8635A, B Equipment Interface Modules, or with the W8835 EnviraZone System. These ...or heat pump equipment. Look for helpful tips throughout the guide when you identify the features that apply to your system: ZONING - Triple layer of thermostats with the word, zoning, below . The following symbols will help you see this symbol. 5 69-1332-4 This means it can be used ...
Owner's Manual
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... 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 schedule override-set the thermostat higher or lower indefinitely. • Vacation mode (1 to activate this feature. • Optional outdoor... (C7089B Outdoor Temperature Sensor optional accessory), the current setpoints, or the filter status. • No batteries needed-your thermostat retains the schedule for the life of a button-use the (information) key to activate) or continual backlighting.
... 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 schedule override-set the thermostat higher or lower indefinitely. • Vacation mode (1 to activate this feature. • Optional outdoor... (C7089B Outdoor Temperature Sensor optional accessory), the current setpoints, or the filter status. • No batteries needed-your thermostat retains the schedule for the life of a button-use the (information) key to activate) or continual backlighting.
Owner's Manual
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Display The thermostat displays important information such as day, time, schedule period, temperature, filter information, system and fan operation. See Fig. 2. 7 69-1332-4 KEYBOARD AND DISPLAY 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, filter information, system and fan operation. See Fig. 2. 7 69-1332-4 KEYBOARD AND DISPLAY 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.
Owner's Manual
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...RAISES TEMPERATURE SETTING DECREASE LOWERS TEMPERATURE SETTING INFORMATION DISPLAYS CURRENT HEAT/COOL TEMPERATURE SETTING AND OUTDOOR TEMPERATURE (WHEN INSTALLED). Thermostat keyboard description. RETURN SET RETURN TIMES AND TEMPERATURES SLEEP SET SLEEP TIMES AND TEMPERATURES PROGRAM SCHEDULING WAKE LEAVE RETURN ... SETS CURRENT DAY AND TIME WAKE SET WAKE TIMES AND TEMPERATURES LEAVE SET LEAVE TIMES AND TEMPERATURES DIGITAL DISPLAY RUN PROGRAM RETURNS THERMOSTAT TO NORMAL OPERATING MODE DAY SETS DAY OF THE WEEK HOLD TEMP SETS A HOLD TEMPERATURE SETTING AND ACTIVATES VACATION HOLD FEATURE ...
...RAISES TEMPERATURE SETTING DECREASE LOWERS TEMPERATURE SETTING INFORMATION DISPLAYS CURRENT HEAT/COOL TEMPERATURE SETTING AND OUTDOOR TEMPERATURE (WHEN INSTALLED). Thermostat keyboard description. RETURN SET RETURN TIMES AND TEMPERATURES SLEEP SET SLEEP TIMES AND TEMPERATURES PROGRAM SCHEDULING WAKE LEAVE RETURN ... SETS CURRENT DAY AND TIME WAKE SET WAKE TIMES AND TEMPERATURES LEAVE SET LEAVE TIMES AND TEMPERATURES DIGITAL DISPLAY RUN PROGRAM RETURNS THERMOSTAT TO NORMAL OPERATING MODE DAY SETS DAY OF THE WEEK HOLD TEMP SETS A HOLD TEMPERATURE SETTING AND ACTIVATES VACATION HOLD FEATURE ...
Owner's Manual
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... PROCESSING INFORMATION AND WAITING TO CALL FOR HEAT OR COOL SHOWS WHEN THERMOSTAT IS IN THE PROGRAMMING MODE SHOWS THERMOSTAT IS IN THE SET CURRENT DAY/TIME MODE SHOWS SMART RESPONSE IS CHANGING THE TEMPERATURE TO MEET THE CURRENT PROGRAM SHOWS VACATION HOLD DURATION Wait ... 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 KEY POSITION HEAT/OFF/COOL SHOWS CURRENT FAN KEY POSITION ON/AUTO SHOWS CURRENT DAY OR...
... PROCESSING INFORMATION AND WAITING TO CALL FOR HEAT OR COOL SHOWS WHEN THERMOSTAT IS IN THE PROGRAMMING MODE SHOWS THERMOSTAT IS IN THE SET CURRENT DAY/TIME MODE SHOWS SMART RESPONSE IS CHANGING THE TEMPERATURE TO MEET THE CURRENT PROGRAM SHOWS VACATION HOLD DURATION Wait ... 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 KEY POSITION HEAT/OFF/COOL SHOWS CURRENT FAN KEY POSITION ON/AUTO SHOWS CURRENT DAY OR...
Owner's Manual
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... your family. How do you choose is reached without overshooting the setting. See Fig. 3. Common household thermometers and standard thermostats sense only air temperature, which may not reflect how hot or cold the room actually feels to you and your heating or... cooling system, it 's almost human. The thermostat displays "Recovery" whenever the thermostat activates Adaptive Intelligent Recovery™ control. This saves energy. ADAPTIVE INTELLIGENT RECOVERY™ CONTROL Your new thermostat is so smart, it considers air temperature, wall temperature, and the...
... your family. How do you choose is reached without overshooting the setting. See Fig. 3. Common household thermometers and standard thermostats sense only air temperature, which may not reflect how hot or cold the room actually feels to you and your heating or... cooling system, it 's almost human. The thermostat displays "Recovery" whenever the thermostat activates Adaptive Intelligent Recovery™ control. This saves energy. ADAPTIVE INTELLIGENT RECOVERY™ CONTROL Your new thermostat is so smart, it considers air temperature, wall temperature, and the...
Owner's Manual
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...of 68° at 6:30 AM. Optimum Comfort and Energy Savings In Fig. 4, Adaptive Intelligent Recovery™ control starts to local weather, your thermostat learns from experience. Each day it checks how closely it hit the recovery target (for example, 70° at 5:00 AM and reaches the comfort... temperature of your home, and your heating and cooling system. After four to eight days, the thermostat has adjusted to recover at 6:00 AM) and adjusts the next day's recovery start time accordingly. Recovery time varies with the starting temperature and...
...of 68° at 6:30 AM. Optimum Comfort and Energy Savings In Fig. 4, Adaptive Intelligent Recovery™ control starts to local weather, your thermostat learns from experience. Each day it checks how closely it hit the recovery target (for example, 70° at 5:00 AM and reaches the comfort... temperature of your home, and your heating and cooling system. After four to eight days, the thermostat has adjusted to recover at 6:00 AM) and adjusts the next day's recovery start time accordingly. Recovery time varies with the starting temperature and...
Owner's Manual
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... 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 GRADUALLY TO LOWER COMFORT TEMPERATURE DURING THE COOLING SEASON. 1 IF In Recovery IS DISPLAYED, PRESS TO SEE THE COMFORT...
... 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 GRADUALLY TO LOWER COMFORT TEMPERATURE DURING THE COOLING SEASON. 1 IF In Recovery IS DISPLAYED, PRESS TO SEE THE COMFORT...
Owner's Manual
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... 13 69-1332-4 Setting System and Fan Keys Use the System and Fan keys to the compressor or other equipment. OPERATING YOUR THERMOSTAT Your new thermostat saves energy and keeps you are comfortable when you return and yet save energy while you comfortable at a specific temperature while you may... each schedule period individually. You can be wondering how to program your thermostat and how to remain off for all the schedule periods. The fan settings can even program the thermostat to return to hold the thermostat at the same time. By now you go on your regular programming ...
... 13 69-1332-4 Setting System and Fan Keys Use the System and Fan keys to the compressor or other equipment. OPERATING YOUR THERMOSTAT Your new thermostat saves energy and keeps you are comfortable when you return and yet save energy while you comfortable at a specific temperature while you may... each schedule period individually. You can be wondering how to program your thermostat and how to remain off for all the schedule periods. The fan settings can even program the thermostat to return to hold the thermostat at the same time. By now you go on your regular programming ...
Owner's Manual
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... (Heat, Off, Cool, or Auto) displays. For example, changing the zone 1 thermostat from Heat to Cool causes all zones. Cool: The thermostat controls the cooling. A flashing indicates that the thermostat is not available in this zone. For this zone. 14 69-1332-4 Auto: Fan.... HEAT PUMP Em.Ht: Emergency heat is available in all thermostats to change from Heat to Cool. Auto: The thermostat automatically changes between heating and cooling operation, depending on any thermostat auto- displays when the thermostat is off . Off: Both the heating and cooling are off...
... (Heat, Off, Cool, or Auto) displays. For example, changing the zone 1 thermostat from Heat to Cool causes all zones. Cool: The thermostat controls the cooling. A flashing indicates that the thermostat is not available in this zone. For this zone. 14 69-1332-4 Auto: Fan.... HEAT PUMP Em.Ht: Emergency heat is available in all thermostats to change from Heat to Cool. Auto: The thermostat automatically changes between heating and cooling operation, depending on any thermostat auto- displays when the thermostat is off . Off: Both the heating and cooling are off...
Owner's Manual
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Heat Auto M14565 Press Hold Temp key once to the room temperature after approximately three seconds. Run Program 17 69-1332-4 Fan NOTE: The display changes from the setpoint to display the thermostat in Hold mode. Example display shows temporary heat setting of 60°. ture setpoint, if desired. Changing and Holding Temperature Setting Indefinitely 1. Hold Temp Setting System Heat 2. Press Run Program key to change the tempera- Press increase ▲ or decrease ▼ to cancel hold. Press Hold Temp key once.
Heat Auto M14565 Press Hold Temp key once to the room temperature after approximately three seconds. Run Program 17 69-1332-4 Fan NOTE: The display changes from the setpoint to display the thermostat in Hold mode. Example display shows temporary heat setting of 60°. ture setpoint, if desired. Changing and Holding Temperature Setting Indefinitely 1. Hold Temp Setting System Heat 2. Press Run Program key to change the tempera- Press increase ▲ or decrease ▼ to cancel hold. Press Hold Temp key once.
Owner's Manual
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... Hold. 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. Hold for Wake Days Setting System Heat Heat Fan Auto M14834 Press the Time or...
... Hold. 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. Hold for Wake Days Setting System Heat Heat Fan Auto M14834 Press the Time or...
Owner's Manual
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Wake Leave Return Sleep 4. 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 adjust the temperature setting, if desired. Auto M14572 19 69-1332-4 Press ...
Wake Leave Return Sleep 4. 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 adjust the temperature setting, if desired. Auto M14572 19 69-1332-4 Press ...
Owner's Manual
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To cancel the Vacation Hold before the designated time, press Run Program key at 84°, cooling equipment operates when the room temperature is set at each thermostat. Don't worry! You can always press Run Program to return display to start over? ZONING Pressed the wrong key? 5. Heat/Cool Settings 6. Want to normal. 20 69-1332-4 Press Heat/Cool Settings key to adjust the temperature setting, if desired (for example, if cool is above 84°F). Press increase ▲ or decrease ▼ to change between heat and cool settings.
To cancel the Vacation Hold before the designated time, press Run Program key at 84°, cooling equipment operates when the room temperature is set at each thermostat. Don't worry! You can always press Run Program to return display to start over? ZONING Pressed the wrong key? 5. Heat/Cool Settings 6. Want to normal. 20 69-1332-4 Press Heat/Cool Settings key to adjust the temperature setting, if desired (for example, if cool is above 84°F). Press increase ▲ or decrease ▼ to change between heat and cool settings.
Owner's Manual
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... current fan run -time days you know when to replace the filter, based on the top right of fan run -time day. Upon expiration, the thermostat displays "Filter" and the green LED lights (on the number of the time each day, it takes three days to display filter information. To change... this setting, or reset after filter expiration: 1. Press Filter key to expire in 5 days. M14577 23 69-1332-4 Filter Indicator Your thermostat monitors the time the fan is on only one fan run time. For example, if the 60 70 80 90 fan is running and lets...
... current fan run -time days you know when to replace the filter, based on the top right of fan run -time day. Upon expiration, the thermostat displays "Filter" and the green LED lights (on the number of the time each day, it takes three days to display filter information. To change... this setting, or reset after filter expiration: 1. Press Filter key to expire in 5 days. M14577 23 69-1332-4 Filter Indicator Your thermostat monitors the time the fan is on only one fan run time. For example, if the 60 70 80 90 fan is running and lets...
Owner's Manual
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... heat pump check LED indicator lights (red), see the Filter Indication section; Switch the thermostat to Em. CHECK (RED) LED FILTER (GREEN) LED M13375 ZONING Remote OverrideTemperature Indicator The thermostat can communicate with the heat pump. If the temperature was overridden remotely, a (▲...;) is displayed and "Temporary" flashes. HEAT PUMP The Check LED indicates a failure detected with a variety of the thermostat. The LED indicators light on the upper right side of system controllers. and contact your heat pump service company for assistance. Heating...
... heat pump check LED indicator lights (red), see the Filter Indication section; Switch the thermostat to Em. CHECK (RED) LED FILTER (GREEN) LED M13375 ZONING Remote OverrideTemperature Indicator The thermostat can communicate with the heat pump. If the temperature was overridden remotely, a (▲...;) is displayed and "Temporary" flashes. HEAT PUMP The Check LED indicates a failure detected with a variety of the thermostat. The LED indicators light on the upper right side of system controllers. and contact your heat pump service company for assistance. Heating...
Owner's Manual
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Set Current Day/Time Mon Set Day/Time PM Press Set Current Day/Time key to show information displayed. Press Set Current Day/Time key. M14580 26 69-1332-4 ZONING IMPORTANT Always press the keys with your fingertip or similar blunt tool. Sharp instruments like pens and pencil points can damage the keyboard. On initial power up or after an extended power loss, 1:00 PM flashes on all thermostats. SETTING THE CLOCK Setting Current Day and Time Seting the time and day at one thermostat automatically sets the time and day on the display until a key is pressed. 1.
Set Current Day/Time Mon Set Day/Time PM Press Set Current Day/Time key to show information displayed. Press Set Current Day/Time key. M14580 26 69-1332-4 ZONING IMPORTANT Always press the keys with your fingertip or similar blunt tool. Sharp instruments like pens and pencil points can damage the keyboard. On initial power up or after an extended power loss, 1:00 PM flashes on all thermostats. SETTING THE CLOCK Setting Current Day and Time Seting the time and day at one thermostat automatically sets the time and day on the display until a key is pressed. 1.