OWNER'S MANUAL How to operate your new Programmable Thermostat
Congratulations! You made a smart choice when you purchased your new programmable thermostat. It’s the smart thermostat that: ■ Keeps you comfortable by automatically calculating exactly when the furnace or air conditioning should go on to have the house at the desired comfort temperature at the time you want. ■ Saves the maximum amount of energy and money by remembering to automatically set back the heat or air conditioning when you leave home or sleep.
TABLE OF CONTENTS Programmed Recovery ......................................... 1-4 Recovery Setting ................................................... 5-6 Programming Your Thermostat ......................... 7-22 Set the current day and time .................................. 7 Set the program schedule and heating temperatures ........................................ 8 Set the cooling temperatures, if you have air conditioning ..............................
PROGRAMMED RECOVERY PROGRAMMED RECOVERY— BREAKTHROUGH TECHNOLOGY SENSES TEMPERATURE MORE LIKE YOU DO M168 1
Your new thermostat is so smart, it’s almost human. PROGRAMMED RECOVERY ■ Your body perceives temperature from a variety of sources, not only from the air in the room, but also from your surroundings—walls, windows and furnishings. ■ Human beings feel differences in temperature as slight as one degree Celsius. ■ Common household thermometers and standard thermostats sense only air temperature, which may or may not reflect how hot or cold the room actually feels to a human being.
PROGRAMMED RECOVERY THE OPTIMUM COMFORT AND ENERGY SAVINGS SOLUTION System Operating in Comfort Mode AM REPL SET TEMPERATURE PT PM BAT SUN MON TUE WED THU FRI SAT COOL ON HEAT ON WAKE LEAVE RETURN SLEEP TEMPORARY UNOCCUIPIED AM REPL SET PT PM BAT SUN MON TUE WED THU FRI SAT COOL ON HEAT ON WAKE LEAVE RETURN SLEEP TEMPORARY UNOCCUIPIED Recovery Continues Recovery Begins AM REPL PM BAT SET PT SUN MON TUE WED THU FRI SAT COOL ON HEAT ON WAKE LEAVE RETURN SLEEP TEMPORARY UNOCCUIPIED System Operating
■ During Programmed Recovery the thermostat increases the control temperature gradually and turns the equipment on and off several times to save energy by avoiding “overshooting” the comfort temperature. You can see the current control temperature anytime during recovery by pressing the PRESENT SETTING key. On some models, both the SYSTEM and ENRG SAV lights may be lit at the same time during recovery. ■ This “smart” control learns from experience.
RECOVERY SETTING RECOVERY SELECTION ADAPTIVE INTELLIGENT TM CONVENTIONAL Your thermostat includes a screw on the back marked “3A”, allowing for the Programmed Recovery/conventional recovery choice. 3A IN (FACTORY SETTING) OUT 1/2 TO 1 TURN Your thermostat was shipped from the factory with the screw positioned for Programmed Recovery. Your installer may have left the screw in this position, or may have changed it to conventional recovery.
To determine which type of recovery is set into your thermostat, make sure thermostat is powered with fresh batteries, or is mounted and powered on the wall (see page 32). RUN PROGRAM AM Press key. Check thermostat display. MON WAKE INDICATES THERMOSTAT IS SET FOR CONVENTIONAL RECOVERY • If the ■ shows in the lower right-hand corner (see illustration), the thermostat is set for conventional recovery.
PROGRAMMING YOUR THERMOSTAT STEP 1 SET THE CURRENT DAY AND TIME You can program this thermostat either on the wall or in your hand. SEE PAGE 31 TO FIND OUT HOW TO REMOVE THE THERMOSTAT FROM THE WALL. Always press the keys with your fingertip or similar blunt tool. Sharp instruments like a pen or pencil point can damage the keyboard. NOTE: Check the glossary, page 35, for definitions of unfamiliar words. SET PRESENT DAY/TIME DAY AHEAD BACK Press and release. The display shows 1:00 PM Mon.
IMPORTANT Before you begin STEP 2, determine if your thermostat is set for Programmed Recovery or conventional recovery. See pages 5-6. If set for Programmed Recovery, program the times for when you want your home comfortable. The thermostat will decide how early to begin the temperature changes. If set for conventional recovery, program the times earlier, allowing your home to reach the comfort temperature by the time you get home or wake up.
PROGRAMMING YOUR THERMOSTAT NOTE: The display shows Programmed Recovery setting in the following instructions. DAY AHEAD If display reads SAT or SUN, press and hold until MON TUE WED THU FRI appears. Press and hold until the display shows the desired starting time. AM MON TUE WED THU FRI SET PT HEAT WAKE AM MON TUE WED THU FRI SET PT HEAT WAKE BACK WARMER Press and hold until the display shows the desired temperature.
degrees below the air conditioning temperature. For example, if the cooling setting is 24° C, the maximum heating setting is 22° C. Program the LEAVE time and temperature, if desired. NOTE: You can cancel the LEAVE, RETURN or SLEEP program by holding down the period key until the time and temperature disappear from the display. LEAVE SET PT MON TUE WED THU FRI HEAT LEAVE Press and release. The display shows LEAVE, but no time or temperature.
PROGRAMMING YOUR THERMOSTAT Program the RETURN time and temperature, if desired. RETURN Press and release. The display shows RETURN, but no time or temperature. SET PT MON TUE WED THU FRI HEAT RETURN AHEAD BACK Press and hold until the display shows the desired starting time. SET PT PM MON TUE WED THU FRI HEAT RETURN WARMER COOLER Press and hold until the display shows the desired temperature.
Program the SLEEP time and temperature, if desired. SLEEP Press and release. The display shows SLEEP and the preprogrammed time and temperature. SET PT PM MON TUE WED THU FRI HEAT SLEEP AHEAD BACK Press and hold until the display shows the desired starting time. SET PT PM MON TUE WED THU FRI HEAT SLEEP WARMER COOLER Press and hold until the display shows the desired temperature.
PROGRAMMING YOUR THERMOSTAT Set the SATURDAY schedule. Use the same procedure as for weekdays. DAY Press and hold until SAT appears on the display. SET PT PM SAT HEAT SLEEP WAKE Press WAKE, LEAVE, RETURN or SLEEP to select the time period. SLEEP AHEAD BACK LEAVE RETURN Use the AHEAD/BACK keys to set the time and the WARMER/ COOLER keys to set the temperature.
Set the SUNDAY schedule. Use the same procedure as for weekdays. DAY Press and hold until SUN appears on the display. HEAT SLEEP WAKE Press WAKE, LEAVE, RETURN, or SLEEP to select the time period. SLEEP AHEAD BACK NOTE: Some models will show -AC, indicating the thermostat is operating on backup batteries until the thermostat is mounted on the wallplate and the system is powered.
PROGRAMMING YOUR THERMOSTAT STEP 3 SET THE COOLING TEMPERATURES, IF YOU HAVE AIR CONDITIONING The program times are the same for both heating and cooling. Only the cooling temperatures need to be programmed if you have already programmed for heating. To set times as you program the cooling temperatures, use the TIME AHEAD and BACK keys as described in Step 2. WAKE SET HEAT/COOL DAY First program the WAKE temperature for weekdays. Press and release.
WARMER Press and hold until the display shows the desired temperature. AM MON TUE WED THU FRI SET PT COOL WAKE COOLER If the display blinks while you hold down TEMPERATURE WARMER or COOLER, you have reached the setting limit. If your thermostat can switch automatically between heating and cooling, the cooling temperature must be at least 2 degrees higher than the corresponding heating temperature. For example, if the heating setting is 21° C, the minimum cooling setting is 23° C.
PROGRAMMING YOUR THERMOSTAT Program the LEAVE temperature, if desired. LEAVE Press and release. The display shows LEAVE, the time programmed for heating, and 26° C. AM MON TUE WED THU FRI SET PT COOL LEAVE WARMER COOLER Press and hold until the display shows the desired temperature. AM MON TUE WED THU FRI SET PT COOL LEAVE Program the RETURN temperature, if desired. RETURN Press and release. The display shows RETURN, the time programmed for heating, and 26° C.
Program the SLEEP temperature, if desired. SLEEP SET PT PM Press and release. MON TUE WED THU FRI COOL SLEEP WARMER COOLER Press and hold until the display shows the desired temperature. SET PT PM MON TUE WED THU FRI COOL SLEEP Set the cooling temperatures for the SATURDAY schedule. Use the same procedure as for weekdays. DAY Press and hold until SAT appears on the display. PM SET PT SAT COOL SLEEP WAKE SLEEP Press WAKE, LEAVE, RETURN or SLEEP to select the time period.
PROGRAMMING YOUR THERMOSTAT WARMER COOLER Use the WARMER/COOLER keys to set the temperature. SET PT PM SUN COOL SLEEP Set the cooling temperatures for the SUNDAY schedule. Use the same procedure as for weekdays. DAY WAKE SLEEP Press and hold until SUN appears on the display. Press WAKE, LEAVE, RETURN or SLEEP to select the time period.
WARMER COOLER NOTE: Some models will show -AC, indicating the thermostat is operating on backup batteries until the thermostat is mounted on the wallplate and the system is powered. RUN PROGRAM Use the WARMER/COOLER keys to set the temperature. You have completed programming the cooling temperatures. Press and release to start the program. Go to Step 4.
PROGRAMMING YOUR THERMOSTAT STEP 4 SET THE SYSTEM AND FAN SWITCHES, IF YOUR THERMOSTAT HAS THEM. Depending on thermostat model, some or all of the switch positions shown may be available to you. Note the positions provided on your thermostat, then set the switch(es) as desired. First set the fan switch. FAN ON: The fan runs continuously. Use for improved air circulation during special occasions or for more efficient electronic air cleaning. FAN AUTO: Normal setting for most homes.
Then set the system switch. Now, while you enjoy precision temperature control, read on to learn about the operating flexibility that makes this thermostat THE SMART CHOICE. HEAT: The thermostat controls your heating system. HEAT OFF COOL AUTO OFF: Both the heating and cooling systems are off. HEAT OFF COOL AUTO COOL: The thermostat controls your air conditioning system.
OPERATING YOUR THERMOSTAT TEMPORARILY CHANGING THE PROGRAM These features let you customtailor the program for those times when someone comes home early, or you’re staying up late, or you plan to be out for the evening. To keep the current temperature through the next program period: To go back to the temperature of the previous program period: SKIP NEXT PERIOD CHANGE TO LAST PERIOD Press and release.
To temporarily raise or lower the temperature for the current period only: WARMER COOLER If you change your mind: RUN PROGRAM Press and hold until the desired temperature is reached. The display will flash “temporary” until the next programmed time period starts. Press and release to cancel any of the temporary settings.
OPERATING YOUR THERMOSTAT PERMANENTLY CHANGING THE PROGRAM If your schedule changes or you want a different temperature, you can update any setting without affecting the rest of the program. WAKE SLEEP LEAVE Press and release the desired period key. RETURN DAY Press and hold until the desired schedule day shows on the display. AHEAD BACK WARMER Press and hold the Time or Temperature keys until the display shows the desired new program.
HOLD TEMP OPERATING THE THERMOSTAT MANUALLY other extended absence. It does not cancel your program. Press and release. SET PT HEAT WARMER This feature is particularly useful when you go on vacation or COOLER TEMPERATURE Press and hold to change the temperature setting. After a few seconds the display will show the current temperature. SET PT HEAT PRESENT SETTING Press and release to check the temperature setting. SET PT HEAT RUN PROGRAM Press and release to cancel manual control.
OPERATING YOUR THERMOSTAT CANCELING PROGRAM SETTINGS The thermostat requires time and temperature settings in the WAKE period, but any of the others can be canceled. Weekday, Saturday, and Sunday settings are canceled separately. SLEEP LEAVE Press and hold the desired period key until the time and temperature clear from the display (about 3 seconds). MON TUE WED THU FRI HEAT LEAVE RETURN RUN PROGRAM Press and release to return to normal operation.
CHECKING THE PROGRAM TIMES AND TEMPERATURES You can check all the stored settings without affecting the permanent program. WAKE SLEEP LEAVE Press and release the desired period key. The start time and temperature setting will appear on the display. SET PT PM MON TUE WED THU FRI ON HEAT SLEEP RETURN DAY RUN PROGRAM Press and release to display the next daily time and temperature for that period. Press and release to return to normal operation.
OPERATING YOUR THERMOSTAT TEMPERATURE CHECKING THE CURRENT TEMPERATURE SETTING Press a single key to compare current room temperature to the settings at any time. PRESENT SETTING Press and release. The display will show the current temperature setting for several seconds, then revert to the room temperature. SET PT HEAT Applicable if thermostat is set for Programmed Recovery: During recovery from energy savings, the setting displayed will not match the programmed setting.
30
REMOVING THE THERMOSTAT 1 Loosen the two captive screws at the bottom corners of the case. 2 Pull the thermostat bottom. out from the 3 Lift the thermostat base.
REPLACING THE THERMOSTAT 1 Hang the thermostat the t6p of the base. on the tabs at 2 Swing down and press on lower edge until thermostat snaps in place. 3 Tighten the captive screws.
MAINTAINING YOUR THERMOSTAT REPLACING THE BATTERIES To replace: If your thermostat has a system switch, set it to OFF. ■ Remove the thermostat from the wall. See page 31. ■ Lift the batteries out of the holder. ■ Your thermostat uses three AA or AAA alkaline batteries, depending on model. See the instructions inside the thermostat door to determine the size. The display will flash “REPL BAT” when the batteries get low.
POWER OUTAGES Backup batteries will hold the programming and keep the display on during most power outages. Once the power is restored, the system will resume normal operation. If the display goes off when power is lost, either the backup batteries need to be replaced or are not installed. When power is restored, the display will flash 1:00 PM to remind you to reprogram.
GLOSSARY Comfort temperature The temperature you want in the morning and evening when you’re home. Conventional Recovery Recovery starts at the time programmed into the thermostat; house reaches comfort temperature shortly thereafter. Energy-saving temperature The lower (heating) or higher (cooling) temperature that lets you save on heating and cooling costs when you’re asleep or away. Also called the setback (heating) or setup (cooling) temperature.
Period key One of the four keys—WAKE, LEAVE, RETURN, or SLEEP—that you press to check or program the start time and temperature for a time period. Preprogrammed schedule This is the schedule programmed into your thermostat at the factory. It sets a night program that provides energy savings if you don’t set your own program, or if your personal program is lost for any reason.
GLOSSARY Time period One of four program periods; WAKE, LEAVE, RETURN and SLEEP available with the thermostat. One period begins when the previous period ends. WAKE—For conventional recovery, the time the recovery to the comfortable temperature begins; for Programmed Recovery, the time period when you want the house at a comfortable temperature while the family gets up and gets ready to leave for work or school. This is the only period that must contain a time and temperature.
38
YOUR PERSONAL PROGRAM You can use the tables below to plan your schedule before you begin programming. If you choose not to program a daytime energy savings period, leave the LEAVE and RETURN periods blank.
Sunday Program PERIOD WAKE LEAVE RETURN SLEEP START TIME HEATING TEMPERATURE YOUR PERSONAL PROGRAM COOLING TEMPERATURE 40
TROUBLESHOOTING GUIDE IF… Display will not come on. THEN… Check that heat or cool system power is on. If you use batteries, replace with fresh ones. Make sure thermostat is correctly mounted on base. ■ ■ Display flashes during programming. ■ You have reached the temperature setting limit. The setting range is 7° C to 31° C. In models with automatic heat-cool changeover, the COOL temperature setting must be at least 2° C above the HEAT temperature setting. Display flashes during operation.
Heating will not come one. ■ ■ ■ Cooling will not come on. ■ ■ ■ ■ The house is too warm or too cool. ■ ■ Display says HEAT ON or system light is on, but no heat is coming from the registers. ■ Check the fuse or circuit breaker and replace or reset if necessary. If display is blank or says REPL BAT, install fresh batteries. Check that switch on thermostat is set to HEAT or AUTO.
TYPICAL QUESTIONS 1. Why do some models of this thermostat have lights? Battery-operated thermostats do not have indicator lights to conserve battery power. Others may have one or two indicator lights, depending upon the exact model and application. 2. The temperature displayed on the thermostat doesn’t always match the room temperature on another thermostat located right next to it.
Remember, whichever way you set your thermostat, if it is so cold outside that your house drops to your sleep temperature, the furnace will turn on and off at night to control the temperature at that setting. 4. What does the HOLD key do? It bypasses all program settings and holds the temperature at the present setting. To increase or decrease the temperature while on HOLD, use the WARMER-COOLER keys. Touching RUN PROGRAM will return the device to programmed operations. 5.
TYPICAL QUESTIONS 7. My thermostat has ENRG SAV and SYSTEM lights. Why do they both go on at the same time? (For example: during the sleep period.) During Programmed Recovery, when you recover gradually to a next set point, you will stay in the energy-saving mode until the next programmed time is reached. But the system will operate intermittently to gradually raise the temperature to your desired comfort level before the time you’ve set as your WAKE time.
46
TYPICAL ENERGY SAVINGS M 466 16 14 12 10 8 6 4 2% lif ax St .J oh n's *Actual savings depend on your home, geographic location, number of energy saving periods and number of degrees increased or decreased.
48
QUICK REFERENCE TO THE KEYS Press these keys to: SET PRESENT DAY/TIME DAY WAKE LEAVE SLEEP RETURN SET HEAT/COOL AHEAD BACK Begin the current day or time programming. Set the day of the week and select the program day during programming. Select the time period to program or review. Comfort times depend on selection of Programmed Recovery or conventional recovery. Switch between heat and cool modes during programming or when reviewing the program. Set the time ahead and back.
WARMER COOLER Set the temperature while programming and temporarily change the temperature during operation. Hold either key down to change the setting faster. HOLD TEMP Hold any temperature you desire for an extended period. CHANGE Change the temperature to the set point of the previous period. TO LAST PERIOD SKIP NEXT PERIOD Maintain the current temperature through the next program period. RUN PROGRAM Start your programmed schedule, cancel temporary program changes.
INDEX Automatic Changeover .......... 9, 16 Lights ...................................... *, 36 Set fan switch ............................ 21 Batteries, replacement .............. 33 Maintenance .............................. 31 Blinking display ......................... 41 Manual operation ...................... 26 Set heating temperatures .......................... 8 Canceling programs .................. 27 Operation .................................. 23 Change temperature .................
Energy Savings, Typical .................................. 46 Energy-saving temperature .......................... 35 ENRG SAV light ........................ 36 Programming steps ..................... 7 Switch, system .......................... 22 Quick reference to the keys ................................ 47 SYSTEM light ............................ 36 RETURN ............................. 37, 47 Removing thermostat ................ 31 System switch ........................... 22 Table of Contents ..
53
54
S.M. Rev. 1-90 Printed in Taiwan R.O.C.
