Owner's Manual
Page 4
...Your Thermostat 5-22 Set the current day and time 6 Set the program schedule and heating temperatures 7 Set the cooling temperatures 14 Set the system and fan switches on the subbase 20 Operating Your Thermostat 23-30 Temporarily changing the program 23 Permanently changing the program 25 Manually operating the thermostat 26 Canceling the program settings 27 Checking the program times and temperatures ... 28 Checking the current temperature setting 29 Maintaining Your Thermostat 31-34 Removing the thermostat 31 Replacing the thermostat 32 Replacing the batteries 33 Power outages...
...Your Thermostat 5-22 Set the current day and time 6 Set the program schedule and heating temperatures 7 Set the cooling temperatures 14 Set the system and fan switches on the subbase 20 Operating Your Thermostat 23-30 Temporarily changing the program 23 Permanently changing the program 25 Manually operating the thermostat 26 Canceling the program settings 27 Checking the program times and temperatures ... 28 Checking the current temperature setting 29 Maintaining Your Thermostat 31-34 Removing the thermostat 31 Replacing the thermostat 32 Replacing the batteries 33 Power outages...
Owner's Manual
Page 10
... days after installation for the Chronotherm III Thermostat to adjust to save energy by pressing the PRESENT SETTING key. s During Adaptive Intelligent Recovery™, the thermostat increases the control temperature gradually and turns the equipment on and off several times to the weather, your life style, home construction and heating/cooling system. The thermostat calculates the LEAVE/RETURN recovery separately from experience. s This "smart" control learns from the SLEEP/WAKE recovery. Each day...
... days after installation for the Chronotherm III Thermostat to adjust to save energy by pressing the PRESENT SETTING key. s During Adaptive Intelligent Recovery™, the thermostat increases the control temperature gradually and turns the equipment on and off several times to the weather, your life style, home construction and heating/cooling system. The thermostat calculates the LEAVE/RETURN recovery separately from experience. s This "smart" control learns from the SLEEP/WAKE recovery. Each day...
Owner's Manual
Page 11
The thermostat will show 32° F instead of the current temperature, indicating the thermostat is operating on backup batteries until the thermostat is mounted on the wallplate and the system is powered. 5 NOTE: Some models will decide how early to begin the temperature changes. IMPORTANT PROGRAMMING YOUR THERMOSTAT With Adaptive Intelligent Recovery™, program the times for when you want your home comfortable.
The thermostat will show 32° F instead of the current temperature, indicating the thermostat is operating on backup batteries until the thermostat is mounted on the wallplate and the system is powered. 5 NOTE: Some models will decide how early to begin the temperature changes. IMPORTANT PROGRAMMING YOUR THERMOSTAT With Adaptive Intelligent Recovery™, program the times for when you want your home comfortable.
Owner's Manual
Page 13
... the display reads COOL, press and release to switch to plan your schedule. You can program LEAVE, RETURN and SLEEP or not, as you please. The thermostat requires a program for weekdays. PROGRAMMING YOUR THERMOSTAT STEP 2 SET THE PROGRAM SCHEDULE AND HEATING TEMPERATURES Before You Begin... Press and hold until the display shows the desired starting time. Note that the display WAKE SET HEAT/COOL DAY AHEAD BACK shows WAKE and the preprogrammed time and temperature. The schedule...
... the display reads COOL, press and release to switch to plan your schedule. You can program LEAVE, RETURN and SLEEP or not, as you please. The thermostat requires a program for weekdays. PROGRAMMING YOUR THERMOSTAT STEP 2 SET THE PROGRAM SCHEDULE AND HEATING TEMPERATURES Before You Begin... Press and hold until the display shows the desired starting time. Note that the display WAKE SET HEAT/COOL DAY AHEAD BACK shows WAKE and the preprogrammed time and temperature. The schedule...
Owner's Manual
Page 14
For example, if the cooling setting is 75° F, the maximum heating setting is 72° F. AM MON TUE WED THU FRI WAKE SET PT ON HEAT M5020 8 If your thermostat can switch automatically between heating and cooling, the heating temperature must be at least three degrees below the air conditioning temperature. WARMER COOLER Press and hold until the display shows the desired temperature. If the display starts to blink while you are holding down TEMPERATURE WARMER or COOLER, you have reached the setting limit.
For example, if the cooling setting is 75° F, the maximum heating setting is 72° F. AM MON TUE WED THU FRI WAKE SET PT ON HEAT M5020 8 If your thermostat can switch automatically between heating and cooling, the heating temperature must be at least three degrees below the air conditioning temperature. WARMER COOLER Press and hold until the display shows the desired temperature. If the display starts to blink while you are holding down TEMPERATURE WARMER or COOLER, you have reached the setting limit.
Owner's Manual
Page 19
..., LEAVE, RETURN or SLEEP to Step 3. PROGRAMMING YOUR THERMOSTAT Set the SUNDAY schedule. DAY WAKE SLEEP Press and hold until SUN appears on the display. To set air conditioning, go to select the time period. WARMER COOLER If you do not want to set the time and the WARMER/ COOLER keys to program cooling temperatures, skip Step 3 and press the RUN PROGRAM key. 13 You have completed setting the program schedule and heating temperatures. Use the...
..., LEAVE, RETURN or SLEEP to Step 3. PROGRAMMING YOUR THERMOSTAT Set the SUNDAY schedule. DAY WAKE SLEEP Press and hold until SUN appears on the display. To set air conditioning, go to select the time period. WARMER COOLER If you do not want to set the time and the WARMER/ COOLER keys to program cooling temperatures, skip Step 3 and press the RUN PROGRAM key. 13 You have completed setting the program schedule and heating temperatures. Use the...
Owner's Manual
Page 20
... FRI appears. First program the WAKE temperature for heating. To set times as you programmed for SUN WAKE heating. WAKE SET HEAT/COOL DAY Press and release. Only the cooling temperatures need to be programmed if you are the same for both heating and cooling. AM MON TUE WED THU FRI WAKE COOL SET PT M5033 14 The display shows WAKE and the time and temperature you program the cooling temperatures, use the TIME AHEAD and BACK...
... FRI appears. First program the WAKE temperature for heating. To set times as you programmed for SUN WAKE heating. WAKE SET HEAT/COOL DAY Press and release. Only the cooling temperatures need to be programmed if you are the same for both heating and cooling. AM MON TUE WED THU FRI WAKE COOL SET PT M5033 14 The display shows WAKE and the time and temperature you program the cooling temperatures, use the TIME AHEAD and BACK...
Owner's Manual
Page 23
DAY WAKE SLEEP Press and hold until SAT appears on the display. PM MON TUE WED THU FRI SLEEP COOL SET PT M5039 PM MON TUE WED THU FRI SLEEP COOL SET PT M5040 Set the cooling temperatures for weekdays. Press WAKE, LEAVE, RETURN or SLEEP to select the time period. SLEEP Press and release. WARMER COOLER Press and hold until the display shows the desired temperature. PM SAT COOL SLEEP SET PT M5041 LEAVE RETURN 17 Use the same procedure as for the SATURDAY schedule. PROGRAMMING YOUR THERMOSTAT Program the SLEEP temperature, if desired.
DAY WAKE SLEEP Press and hold until SAT appears on the display. PM MON TUE WED THU FRI SLEEP COOL SET PT M5039 PM MON TUE WED THU FRI SLEEP COOL SET PT M5040 Set the cooling temperatures for weekdays. Press WAKE, LEAVE, RETURN or SLEEP to select the time period. SLEEP Press and release. WARMER COOLER Press and hold until the display shows the desired temperature. PM SAT COOL SLEEP SET PT M5041 LEAVE RETURN 17 Use the same procedure as for the SATURDAY schedule. PROGRAMMING YOUR THERMOSTAT Program the SLEEP temperature, if desired.
Owner's Manual
Page 24
DAY WAKE SLEEP Press and hold until SUN appears on the display. SUN PM SLEEP COOL SET PT M5042 Press WAKE, LEAVE, RETURN or SLEEP to set the temperature. Use the same procedure as for the SUNDAY schedule. LEAVE RETURN 18 Set the cooling temperatures for weekdays. WARMER COOLER Use the WARMER/COOLER keys to select the time period.
DAY WAKE SLEEP Press and hold until SUN appears on the display. SUN PM SLEEP COOL SET PT M5042 Press WAKE, LEAVE, RETURN or SLEEP to set the temperature. Use the same procedure as for the SUNDAY schedule. LEAVE RETURN 18 Set the cooling temperatures for weekdays. WARMER COOLER Use the WARMER/COOLER keys to select the time period.
Owner's Manual
Page 27
COOL: The thermostat controls your heating or cooling system, depending on room temperature. COOL OFF M3762 21 AUTO (select models only): The thermostat controls either your cooling system. HEAT AUTO COOL OFF HEAT AUTO COOL OFF HEAT AUTO COOL OFF Now, while you removed it from the wall to program, replace it following the procedure on to learn about the operating flexibility that makes this thermostat THE SMART CHOICE. PROGRAMMING YOUR THERMOSTAT Then set the system switch. OFF: Both the heating and cooling systems...
COOL: The thermostat controls your heating or cooling system, depending on room temperature. COOL OFF M3762 21 AUTO (select models only): The thermostat controls either your cooling system. HEAT AUTO COOL OFF HEAT AUTO COOL OFF HEAT AUTO COOL OFF Now, while you removed it from the wall to program, replace it following the procedure on to learn about the operating flexibility that makes this thermostat THE SMART CHOICE. PROGRAMMING YOUR THERMOSTAT Then set the system switch. OFF: Both the heating and cooling systems...
Owner's Manual
Page 35
... thermostat gradually changes the temperature setting during recovery to the current temperature setting at any time. PRESENT SETTING Press and release. SET PT ON HEAT M5057 29 During recovery from energy savings, the setting displayed will show the current temperature setting for several seconds, then revert to the room temperature. OPERATING YOUR THERMOSTAT CHECKING THE CURRENT TEMPERATURE SETTING Press a single key to compare current room temperature to provide most efficient use of the heating or cooling...
... thermostat gradually changes the temperature setting during recovery to the current temperature setting at any time. PRESENT SETTING Press and release. SET PT ON HEAT M5057 29 During recovery from energy savings, the setting displayed will show the current temperature setting for several seconds, then revert to the room temperature. OPERATING YOUR THERMOSTAT CHECKING THE CURRENT TEMPERATURE SETTING Press a single key to compare current room temperature to provide most efficient use of the heating or cooling...
Owner's Manual
Page 37
MON MORNIMG PM ROOM 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 M3758 HEAT AUTO COOL OFF FAN ON AUTO M3760 HEAT AUTO COOL OFF FAN ON AUTO M3761 31 MAINTAINING YOUR THERMOSTAT REMOVING THE THERMOSTAT 1 Loosen the two captive screws at the bottom corners of the case. 2 Pull out the thermostat from the bottom. 3 Lift the thermostat up and off the subbase.
MON MORNIMG PM ROOM 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 M3758 HEAT AUTO COOL OFF FAN ON AUTO M3760 HEAT AUTO COOL OFF FAN ON AUTO M3761 31 MAINTAINING YOUR THERMOSTAT REMOVING THE THERMOSTAT 1 Loosen the two captive screws at the bottom corners of the case. 2 Pull out the thermostat from the bottom. 3 Lift the thermostat up and off the subbase.
Owner's Manual
Page 38
HEAT AUTO COOL OFF FAN ON AUTO M3759 MON RETURN PM HEAT ON SYSTEM AUTO M3757 MON MORNIMG PM ROOM 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 M3756 MAINTAINING YOUR 32 THERMOSTAT REPLACING THE THERMOSTAT 1 Hang the thermostat on the tabs at the top of the subbase. 2 Swing down and press on the lower edge until the thermostat snaps into place. 3 Tighten the captive screws.
HEAT AUTO COOL OFF FAN ON AUTO M3759 MON RETURN PM HEAT ON SYSTEM AUTO M3757 MON MORNIMG PM ROOM 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 M3756 MAINTAINING YOUR 32 THERMOSTAT REPLACING THE THERMOSTAT 1 Hang the thermostat on the tabs at the top of the subbase. 2 Swing down and press on the lower edge until the thermostat snaps into place. 3 Tighten the captive screws.
Owner's Manual
Page 42
... temperature. Often the SLEEP program is set only for the heating season so family members can set back (winter) or set up and gets ready to leave for work or school. One period begins when the previous period ends. The thermostat turns the heating or cooling equipment on thermostat) glows whenever the thermostat is usually away from home. Setup Raising the temperature in the house for a set period every day...
... temperature. Often the SLEEP program is set only for the heating season so family members can set back (winter) or set up and gets ready to leave for work or school. One period begins when the previous period ends. The thermostat turns the heating or cooling equipment on thermostat) glows whenever the thermostat is usually away from home. Setup Raising the temperature in the house for a set period every day...
Owner's Manual
Page 45
... a power outage. Reprogram the thermostat. If you use batteries, replace with automatic heat-cool changeover, the COOL temperature setting must reprogram. You must be at the desired temperature when the period starts. 39 s Check the program times for the period in question. In models with fresh ones. Display flashes during operation. Replace when necessary. s You have reached the temperature setting limit. Make sure the current day and time are correct. TROUBLESHOOTING GUIDE IF... Display flashes during programming.
... a power outage. Reprogram the thermostat. If you use batteries, replace with automatic heat-cool changeover, the COOL temperature setting must reprogram. You must be at the desired temperature when the period starts. 39 s Check the program times for the period in question. In models with fresh ones. Display flashes during operation. Replace when necessary. s You have reached the temperature setting limit. Make sure the current day and time are correct. TROUBLESHOOTING GUIDE IF... Display flashes during programming.
Owner's Manual
Page 46
... current temperature, and display says HEAT ON or SYSTEM light is on , but no heat is set to COOL or AUTO. Heating will not come on. (con't) Cooling will not come on. The house is turned off. s Press PRESENT SETTING to time delays in time delay, which may add to check the current temperature setting. s If desired, change the time or temperature setting. s Install fresh AAA alkaline batteries. Heating will not come on. Display flashes REPL BAT or goes blank when power...
... current temperature, and display says HEAT ON or SYSTEM light is on , but no heat is set to COOL or AUTO. Heating will not come on. (con't) Cooling will not come on. The house is turned off. s Press PRESENT SETTING to time delays in time delay, which may add to check the current temperature setting. s If desired, change the time or temperature setting. s Install fresh AAA alkaline batteries. Heating will not come on. Display flashes REPL BAT or goes blank when power...
Owner's Manual
Page 47
..., the Chronotherm III Thermostat is self-adjusting, and will take a few days after installation to adapt to your system, the weather and how much the temperature dropped in the morning? With Adaptive Intelligent Recovery™, the thermostat will vary depending on in your desired comfort temperature at that your house drops to programmed operations. 41 Can I control when the furnace comes on your home. If it is...
..., the Chronotherm III Thermostat is self-adjusting, and will take a few days after installation to adapt to your system, the weather and how much the temperature dropped in the morning? With Adaptive Intelligent Recovery™, the thermostat will vary depending on in your desired comfort temperature at that your house drops to programmed operations. 41 Can I control when the furnace comes on your home. If it is...
Owner's Manual
Page 48
... comes on . This prevents overshooting your house temperature may require both the air conditioner and furnace to push the RUN PROGRAM key or change the thermostat setting, also wasting energy). 6. After that may not fall . Why don't all the way to change the system switch positions if applicable. 5. Two ways. When you to your SLEEP temperature setting and the thermostat won't turn off so many times early in temperature that , the thermostat...
... comes on . This prevents overshooting your house temperature may require both the air conditioner and furnace to push the RUN PROGRAM key or change the thermostat setting, also wasting energy). 6. After that may not fall . Why don't all the way to change the system switch positions if applicable. 5. Two ways. When you to your SLEEP temperature setting and the thermostat won't turn off so many times early in temperature that , the thermostat...
Owner's Manual
Page 51
...28 Clock display 5 Cooling temperatures 14 Day 6 Display 6 Energy-saving temperature ........ 35 Fan switch 20 Features Flashing display 39 Glossary 35 Heating temperatures 7 Hold temperature 26, 41 Keys 43 LEAVE 36 Light 36 Maintenance 31 Manual operation 26 Operation 23 Period keys 43 Personal program 37 Power outage 34 Preprogrammed schedule .......... 35 Present setting 26 Program schedule 27 Programming overview Programming steps 6 Quick reference to the keys ........ 43 RETURN 36, 43 Removing thermostat 31 Replacing batteries 33 Replacing thermostat 32 SLEEP...
...28 Clock display 5 Cooling temperatures 14 Day 6 Display 6 Energy-saving temperature ........ 35 Fan switch 20 Features Flashing display 39 Glossary 35 Heating temperatures 7 Hold temperature 26, 41 Keys 43 LEAVE 36 Light 36 Maintenance 31 Manual operation 26 Operation 23 Period keys 43 Personal program 37 Power outage 34 Preprogrammed schedule .......... 35 Present setting 26 Program schedule 27 Programming overview Programming steps 6 Quick reference to the keys ........ 43 RETURN 36, 43 Removing thermostat 31 Replacing batteries 33 Replacing thermostat 32 SLEEP...
Owner's Manual
Page 56
See page 14. 4 Set the system and fan switches. But it's an easy matter to program the thermostat to fit your new thermostat (see Glossary, page 35). Simple Four-Step Programming Of course, you can use the schedule preprogrammed into your lifestyle. 1 Set the current time and day. See page 7. 3 Set the cooling temperatures. See page 20. See page 6. 2 Set the program schedule and heating temperatures.
See page 14. 4 Set the system and fan switches. But it's an easy matter to program the thermostat to fit your new thermostat (see Glossary, page 35). Simple Four-Step Programming Of course, you can use the schedule preprogrammed into your lifestyle. 1 Set the current time and day. See page 7. 3 Set the cooling temperatures. See page 20. See page 6. 2 Set the program schedule and heating temperatures.