Owner's Manual
Page 2
... stored program for weekdays, Saturday, and Sunday. Check status light to four different time periods in the dark. AUX. See Glossary, page 40. See page 2. 3 Set the cooling temperatures. Features Monitor thermostat operation; HT. Simple Four-Step Programming Of course, you can use the schedule preprogrammed into your lifestyle. 1 Set the current time and day. But it's an easy matter to program the thermostat to fit your new thermostat.
... stored program for weekdays, Saturday, and Sunday. Check status light to four different time periods in the dark. AUX. See Glossary, page 40. See page 2. 3 Set the cooling temperatures. Features Monitor thermostat operation; HT. Simple Four-Step Programming Of course, you can use the schedule preprogrammed into your lifestyle. 1 Set the current time and day. But it's an easy matter to program the thermostat to fit your new thermostat.
Owner's Manual
Page 3
... day and time 1 Setting the program schedule and heating temperatures 2 Setting the cooling temperatures 7 Setting the system and fan switches on the subbase 12 Operating Your Thermostat 14-20 Temporarily changing the program 14 Permanently changing the program 15 Operating the thermostat manually 16 Canceling program settings 17 Checking the program times and temperatures .... 18 Checking the current temperature setting 19 External access and control of thermostat 20 Maintaining Your Thermostat 21-24 Removing the thermostat 21 Replacing the thermostat 22 Replacing the batteries...
... day and time 1 Setting the program schedule and heating temperatures 2 Setting the cooling temperatures 7 Setting the system and fan switches on the subbase 12 Operating Your Thermostat 14-20 Temporarily changing the program 14 Permanently changing the program 15 Operating the thermostat manually 16 Canceling program settings 17 Checking the program times and temperatures .... 18 Checking the current temperature setting 19 External access and control of thermostat 20 Maintaining Your Thermostat 21-24 Removing the thermostat 21 Replacing the thermostat 22 Replacing the batteries...
Owner's Manual
Page 4
... your fingertip or similar blunt tool. If using T8631A in Conventional Recovery ( s visible in the display. Press and hold until the current day appears in the display. The thermostat requires a program for weekdays. Sharp instruments like a pen or pencil point can program LEAVE, RETURN and SLEEP or not, as desired. Press and hold until the current time appears in display). Be sure AM or PM appears...
... your fingertip or similar blunt tool. If using T8631A in Conventional Recovery ( s visible in the display. Press and hold until the current day appears in the display. The thermostat requires a program for weekdays. Sharp instruments like a pen or pencil point can program LEAVE, RETURN and SLEEP or not, as desired. Press and hold until the current time appears in display). Be sure AM or PM appears...
Owner's Manual
Page 6
... to set the time and the WARMER/COOLER keys to set the temperature. WARMER COOLER 5 Set the SUNDAY schedule. Use the same procedure as for weekdays. You have completed setting the program schedule and heating temperatures. WARMER COOLER 6 Press WAKE, LEAVE, RETURN or SLEEP to program cool temperature, skip Step 3 and press RUN PROGRAM key. DAY WAKE SLEEP Press and hold until SUN appears on the display. LEAVE RETURN SET PT ON HEAT AHEAD BACK RUN PROGRAM Press...
... to set the time and the WARMER/COOLER keys to set the temperature. WARMER COOLER 5 Set the SUNDAY schedule. Use the same procedure as for weekdays. You have completed setting the program schedule and heating temperatures. WARMER COOLER 6 Press WAKE, LEAVE, RETURN or SLEEP to program cool temperature, skip Step 3 and press RUN PROGRAM key. DAY WAKE SLEEP Press and hold until SUN appears on the display. LEAVE RETURN SET PT ON HEAT AHEAD BACK RUN PROGRAM Press...
Owner's Manual
Page 7
... THU FRI COOL FRI appears. WAKE AM SET PT COOL If display reads SAT or SUN, press and hold until the display shows the desired temperature. Only the cooling temperatures need to be programmed if you program the cooling temperatures, use the TIME AHEAD and BACK keys as described in Step 2. RETURN Press and release. Press and release. PROGRAMMING YOUR THERMOSTAT STEP 3 SETTING THE COOLING TEMPERATURES The program times are also changing them for heating and...
... THU FRI COOL FRI appears. WAKE AM SET PT COOL If display reads SAT or SUN, press and hold until the display shows the desired temperature. Only the cooling temperatures need to be programmed if you program the cooling temperatures, use the TIME AHEAD and BACK keys as described in Step 2. RETURN Press and release. Press and release. PROGRAMMING YOUR THERMOSTAT STEP 3 SETTING THE COOLING TEMPERATURES The program times are also changing them for heating and...
Owner's Manual
Page 8
... the time period. DAY WAKE SLEEP Press and hold until the display shows the desired temperature. LEAVE RETURN 10 PROGRAMMING YOUR THERMOSTAT WARMER COOLER Press and hold until SUN appears on the SATURDAY schedule. Press and hold until the display shows the desired temperature. WAKE SLEEP WARMER COOLER Press WAKE, LEAVE, RETURN or SLEEP to set the temperature. Use the DAY the display. PM SET PT SAT COOL SLEEP 9 Set the cooling temperatures for heating and 78° F. SLEEP WARMER...
... the time period. DAY WAKE SLEEP Press and hold until the display shows the desired temperature. LEAVE RETURN 10 PROGRAMMING YOUR THERMOSTAT WARMER COOLER Press and hold until SUN appears on the SATURDAY schedule. Press and hold until the display shows the desired temperature. WAKE SLEEP WARMER COOLER Press WAKE, LEAVE, RETURN or SLEEP to set the temperature. Use the DAY the display. PM SET PT SAT COOL SLEEP 9 Set the cooling temperatures for heating and 78° F. SLEEP WARMER...
Owner's Manual
Page 9
... on some models). First set to EM. HT., the fan operates with the compressor in heat pump systems when the system switch is set the switch(s) as desired. EM. Then set to HEAT or COOL. switch position. ON AUTO FAN FAN AUTO: Normal setting for more efficient electronic air cleaning. T8631A: the fan starts and stops with the air conditioner and with the heating equipment when the fan switch (4A) is set the system switch. 11 FAN ON: Use for improved air circulation...
... on some models). First set to EM. HT., the fan operates with the compressor in heat pump systems when the system switch is set the switch(s) as desired. EM. Then set to HEAT or COOL. switch position. ON AUTO FAN FAN AUTO: Normal setting for more efficient electronic air cleaning. T8631A: the fan starts and stops with the air conditioner and with the heating equipment when the fan switch (4A) is set the system switch. 11 FAN ON: Use for improved air circulation...
Owner's Manual
Page 11
... SETTING RUN PROGRAM Press and release to normal operation. The display will show the current temperature. WAKE SLEEP DAY Press and release the desired period key. LEAVE RETURN Press and hold until the display shows the desired new program. RUN PROGRAM Press and release to cancel hold the Time or Temperature keys until the desired day schedule shows on the display. 15 AHEAD BACK Press and hold . If you push the RUN PROGRAM key. OPERATING YOUR THERMOSTAT...
... SETTING RUN PROGRAM Press and release to normal operation. The display will show the current temperature. WAKE SLEEP DAY Press and release the desired period key. LEAVE RETURN Press and hold until the display shows the desired new program. RUN PROGRAM Press and release to cancel hold the Time or Temperature keys until the desired day schedule shows on the display. 15 AHEAD BACK Press and hold . If you push the RUN PROGRAM key. OPERATING YOUR THERMOSTAT...
Owner's Manual
Page 12
... program. 17 WAKE SLEEP Press and release the desired period key. The start time and temperature setting will appear on the display. Weekday, Saturday and Sunday settings are canceled separately. Press and release to return to normal operation. LEAVE RETURN Press and release to display the DAY next daily time and temperature for that period. SLEEP LEAVE RETURN RUN PROGRAM Press and hold the desired period key until the time and temperature clear...
... program. 17 WAKE SLEEP Press and release the desired period key. The start time and temperature setting will appear on the display. Weekday, Saturday and Sunday settings are canceled separately. Press and release to return to normal operation. LEAVE RETURN Press and release to display the DAY next daily time and temperature for that period. SLEEP LEAVE RETURN RUN PROGRAM Press and hold the desired period key until the time and temperature clear...
Owner's Manual
Page 13
... Consumer Services, 1-800-468-1502, MondayFriday, 7:30 a.m. Use the RUN PROGRAM key to thermostat control of program times and temperatures until the next period starts. The display will show the current temperature setting for external access and control. Whenever the thermostat is a Honeywell proprietary communications protocol. To permanently change the temperature set point, push the desired period key, then the WARMER or COOLER key. The temporary override setting lasts until a new...
... Consumer Services, 1-800-468-1502, MondayFriday, 7:30 a.m. Use the RUN PROGRAM key to thermostat control of program times and temperatures until the next period starts. The display will show the current temperature setting for external access and control. Whenever the thermostat is a Honeywell proprietary communications protocol. To permanently change the temperature set point, push the desired period key, then the WARMER or COOLER key. The temporary override setting lasts until a new...
Owner's Manual
Page 14
... in place. 3 Tighten the captive screws. HEAT AUTO COOL OFF EM. AUX. HEAT OFF COOL EM. HT. HT. HEAT FAN ON AUTO M5014 MON RETURN PM HEAT ON SYSTEM AUTO M5063 MON RETURN PM HEAT ON SYSTEM RUN PROGRAM SET PRESENT DAY/TIME DAY HOLD TEMP SET HEAT/COOL PERIOD WAKE LEAVE SLEEP RETURN TIME AHEAD TEMPERATURE PRESENT SETTING WARMER SKIP NEXT PERIOD BACK COOLER CHANGE TO LAST PERIOD M5075 22 MAINTAINING YOUR THERMOSTAT REMOVING THE THERMOSTAT 1 Loosen the two captive screws at the...
... in place. 3 Tighten the captive screws. HEAT AUTO COOL OFF EM. AUX. HEAT OFF COOL EM. HT. HT. HEAT FAN ON AUTO M5014 MON RETURN PM HEAT ON SYSTEM AUTO M5063 MON RETURN PM HEAT ON SYSTEM RUN PROGRAM SET PRESENT DAY/TIME DAY HOLD TEMP SET HEAT/COOL PERIOD WAKE LEAVE SLEEP RETURN TIME AHEAD TEMPERATURE PRESENT SETTING WARMER SKIP NEXT PERIOD BACK COOLER CHANGE TO LAST PERIOD M5075 22 MAINTAINING YOUR THERMOSTAT REMOVING THE THERMOSTAT 1 Loosen the two captive screws at the...
Owner's Manual
Page 15
... switch to reprogram the thermostat if you to be replaced or were not installed. s Remove the thermostat from the wall. s Insert the new batteries, making sure the positive (+) terminals all face toward the right. M5065 23 POWER OUTAGES Backup batteries will flash REPL BAT when the batteries get low. If the display goes off when power is not properly connected to the subbase. 24 The display will hold the programming and keep...
... switch to reprogram the thermostat if you to be replaced or were not installed. s Remove the thermostat from the wall. s Insert the new batteries, making sure the positive (+) terminals all face toward the right. M5065 23 POWER OUTAGES Backup batteries will flash REPL BAT when the batteries get low. If the display goes off when power is not properly connected to the subbase. 24 The display will hold the programming and keep...
Owner's Manual
Page 17
... exact time to turn on to choose the exact time your furnace or air conditioner comes on your furnace or air conditioner, it hit the target and adjusts the recovery start recovery. 28 s During the Adaptive Intelligent Recovery setting, the thermostat increases the control temperature gradually and turns the equipment on and off several times to use Adaptive Intelligent Recovery™ or conventional recovery. ADAPTIVE INTELLIGENT RECOVERY™ THE OPTIMUM COMFORT AND ENERGY SAVINGS SOLUTION TEMPERATURE System Operating in Comfort Mode AM...
... exact time to turn on to choose the exact time your furnace or air conditioner comes on your furnace or air conditioner, it hit the target and adjusts the recovery start recovery. 28 s During the Adaptive Intelligent Recovery setting, the thermostat increases the control temperature gradually and turns the equipment on and off several times to use Adaptive Intelligent Recovery™ or conventional recovery. ADAPTIVE INTELLIGENT RECOVERY™ THE OPTIMUM COMFORT AND ENERGY SAVINGS SOLUTION TEMPERATURE System Operating in Comfort Mode AM...
Owner's Manual
Page 18
... show, the thermostat is set into the thermostat. • With Conventional Recovery, the programmed time will vary as the seasons change. 1A 1B 2A 2B RECOVERY OPTION ADAPTIVE 2A IN CONVENTIONAL 2A OUT DISPLAY TEMPERATURE Co 2B IN Fo 2B OUT M3064 HEAT CYCLE RATE SYSTEM 1A 1B GRAVITY OUT OUT AIR/WATER 1 TURN 1 TURN HOT OUT WATER 1 TURN IN GAS/OIL IN IN WARM AIR (FACTORY SETTING) ELECTRIC WARM AIR IN OUT 1 TURN 29 To...
... show, the thermostat is set into the thermostat. • With Conventional Recovery, the programmed time will vary as the seasons change. 1A 1B 2A 2B RECOVERY OPTION ADAPTIVE 2A IN CONVENTIONAL 2A OUT DISPLAY TEMPERATURE Co 2B IN Fo 2B OUT M3064 HEAT CYCLE RATE SYSTEM 1A 1B GRAVITY OUT OUT AIR/WATER 1 TURN 1 TURN HOT OUT WATER 1 TURN IN GAS/OIL IN IN WARM AIR (FACTORY SETTING) ELECTRIC WARM AIR IN OUT 1 TURN 29 To...
Owner's Manual
Page 20
... money) by recovering gradually to a Honeywell TotalHome system for blocks of my WAKE time should the furnace come on HOLD, use the WARMER-COOLER keys. were always consistent, an unchanging program would work just fine. First, it conserves energy by setting back the temperature for external access and control. The T8631 Communicating Chronotherm III Thermostat can the T8631A Thermostat save energy without sacrificing comfort. Whenever the...
... money) by recovering gradually to a Honeywell TotalHome system for blocks of my WAKE time should the furnace come on HOLD, use the WARMER-COOLER keys. were always consistent, an unchanging program would work just fine. First, it conserves energy by setting back the temperature for external access and control. The T8631 Communicating Chronotherm III Thermostat can the T8631A Thermostat save energy without sacrificing comfort. Whenever the...
Owner's Manual
Page 21
... the factory setting of expensive auxiliary heat needed for recovery can cost more than the energy saved by the desired time. The SLEEP temperature must push the CHANGE TO LAST PERIOD key to start warming the house. Some high efficiency furnaces need to start recovery until the comfort temperature is reached. 10. How? s Set the RETURN program temperature the same as the SLEEP temperature. Turn out the 1A screw with auxiliary heat? to override Adaptive Intelligent Recovery setting: s Set the...
... the factory setting of expensive auxiliary heat needed for recovery can cost more than the energy saved by the desired time. The SLEEP temperature must push the CHANGE TO LAST PERIOD key to start warming the house. Some high efficiency furnaces need to start recovery until the comfort temperature is reached. 10. How? s Set the RETURN program temperature the same as the SLEEP temperature. Turn out the 1A screw with auxiliary heat? to override Adaptive Intelligent Recovery setting: s Set the...
Owner's Manual
Page 24
... program to run on the thermostat. The higher temperature is the energy savings temperature. AUX HT light [T8631R only] (green)-This light glows whenever the thermostat is sleeping. HEAT because of WAKE, LEAVE, RETURN and SLEEP period start times and temperatures that lets you control your family's normal bedtime. WAKE-The time period when you want the house at the thermostat location until another temperature setting goes into effect. Set it may also indicate...
... program to run on the thermostat. The higher temperature is the energy savings temperature. AUX HT light [T8631R only] (green)-This light glows whenever the thermostat is sleeping. HEAT because of WAKE, LEAVE, RETURN and SLEEP period start times and temperatures that lets you control your family's normal bedtime. WAKE-The time period when you want the house at the thermostat location until another temperature setting goes into effect. Set it may also indicate...
Owner's Manual
Page 26
... and RETURN start times so the house will not come on . Temperature change the time or temperature setting. Be sure that backup batteries are installed correctly. Display will not come on display screen. You must reprogram. Make sure the current day and time are correct. Allow up before the compressor starts. s You have reached the temperature setting limit. TROUBLESHOOTING GUIDE IF... Cooling will not come on . Display flashes during operation. s Check that AM and PM indications are correct. Display flashes...
... and RETURN start times so the house will not come on . Temperature change the time or temperature setting. Be sure that backup batteries are installed correctly. Display will not come on display screen. You must reprogram. Make sure the current day and time are correct. Allow up before the compressor starts. s You have reached the temperature setting limit. TROUBLESHOOTING GUIDE IF... Cooling will not come on . Display flashes during operation. s Check that AM and PM indications are correct. Display flashes...
Owner's Manual
Page 27
... COOLER HOLD TEMP CHANGE TO LAST PERIOD SKIP NEXT PERIOD RUN PROGRAM PRESENT SETTING Set the temperature while programming and temporarily change the setting faster. Change the temperature to change the temperature during programming. Hold any temperature you desire for an extended period. See the current temperature setting. Hold either key down to the set point of the week and select the program day during operation. Setting may not match programmed setting during programming or when reviewing the program. SLEEP RETURN SET HEAT/COOL Switch between heat and cool...
... COOLER HOLD TEMP CHANGE TO LAST PERIOD SKIP NEXT PERIOD RUN PROGRAM PRESENT SETTING Set the temperature while programming and temporarily change the setting faster. Change the temperature to change the temperature during programming. Hold any temperature you desire for an extended period. See the current temperature setting. Hold either key down to the set point of the week and select the program day during operation. Setting may not match programmed setting during programming or when reviewing the program. SLEEP RETURN SET HEAT/COOL Switch between heat and cool...
Owner's Manual
Page 28
... system control 20 Adaptive Intelligent Recovery 25-28,40 Auxiliary heat light 41 Batteries, replacement 23 Blinking display 3,10 Canceling programs 17 Change temperature 15 Checking present setting 19 Checking programs 18 Clock display 1 Comfort temperature 40 Conventional recovery 40 Cooling temperatures 7-11 Day 1 Display 1 Emergency heat light 42 Energy-saving temperature 40 Fan switch 12 Features Flashing display 45 Glossary 40-42 HBus 40 Heating temperatures 2-6 Hold temperature 16,48 Keys 47-48 LEAVE 42,47 Lights 41-42 Maintenance 21-24 Manual operation 16...
... system control 20 Adaptive Intelligent Recovery 25-28,40 Auxiliary heat light 41 Batteries, replacement 23 Blinking display 3,10 Canceling programs 17 Change temperature 15 Checking present setting 19 Checking programs 18 Clock display 1 Comfort temperature 40 Conventional recovery 40 Cooling temperatures 7-11 Day 1 Display 1 Emergency heat light 42 Energy-saving temperature 40 Fan switch 12 Features Flashing display 45 Glossary 40-42 HBus 40 Heating temperatures 2-6 Hold temperature 16,48 Keys 47-48 LEAVE 42,47 Lights 41-42 Maintenance 21-24 Manual operation 16...