User manual HONEYWELL T8600

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: s 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. s 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. Provides the ultimate in comfort and convenience. It comes already programmed, so it's your choice--use the pre-programmed schedule or set your own. s 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 .............................. 15 Set the system and fan switches, if your thermostat has them ............................. 21 Operating Your Thermostat ............................. 23-29 Temporarily changing the program ...................... 23 Permanently changing the program ..................... 25 Operating the thermostat manually ...................... 26 Canceling 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 ..................................................... 34 Glossary ............................................................. 35-37 Your Personal Program .................................... 39-40 Troubleshooting Guide ..................................... 41-42 Typical Questions ............................................. 43-46 Typical Energy Savings .......................................... 47 Quick Reference to the Keys ........................... 49-50 Index ................................................................... 51-52 i PROGRAMMED RECOVERY PROGRAMMED RECOVERY-- BREAKTHROUGH TECHNOLOGY SENSES TEMPERATURE MORE LIKE YOU DO M168 1 Your new thermostat is so smart, it's almost human. s 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. Your new thermostat reads the temperature of the wall as well as the air--and responds to temperature changes as little as one-half degree Celsius--so room temperature is more likely to "feel right" to you and your family. s s s PROGRAMMED RECOVERY 2 PROGRAMMED RECOVERY THE OPTIMUM COMFORT AND ENERGY SAVINGS SOLUTION TEMPERATURE PT PM BAT SUN MON TUE WED THU FRI SAT COOL ON HEAT ON WAKE LEAVE RETURN SLEEP TEMPORARY UNOCCUIPIED System Operating in Comfort Mode PT PM BAT SUN MON TUE WED THU FRI SAT COOL ON HEAT ON WAKE LEAVE RETURN SLEEP TEMPORARY UNOCCUIPIED AM REPL SET AM REPL SET Recovery Begins AM REPL PM BAT SET PT Recovery Continues SUN MON TUE WED THU FRI SAT COOL ON HEAT ON WAKE LEAVE RETURN SLEEP TEMPORARY UNOCCUIPIED System Operating in Energy Saving Mode PT PM BAT SUN MON TUE WED THU FRI SAT COOL ON HEAT ON WAKE LEAVE RETURN SLEEP TEMPORARY UNOCCUIPIED AM REPL SET ENERGY SAVINGS PERIOD RECOVERY FROM ENERGY SAVINGS COMFORT PERIOD TIME THE THERMOSTAT USES THE SAME SCHEME TO RETURN GRADUALLY TO LOWER COMFORT TEMPERATURE DURING THE COOLING SEASON. M467A s This thermostat is actually a small but powerful computer. When calculating the exact time to turn on your furnace or air conditioner, it considers (1) air temperature, (2) the temperature of the wall and (3) when you want the comfort temperature established. 3 s 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. Each day it checks how closely it "hit the target" and adjusts the recovery start time accordingly. It typically takes four to eight days after installation for this thermostat to adjust to the weather, your life style, home construction and heating/cooling system. The thermostat calculates the LEAVE/RETURN recovery separately from the SLEEP/WAKE recovery. s s With this thermostat you can choose whether you want to use Programmed Recovery or conventional recovery. Use Programmed Recovery if you want to choose the exact time that the room reaches your comfort temperature. Use conventional recovery if you prefer to choose the exact time your furnace or air conditioner comes on to start recovery. 4 RECOVERY SETTING RECOVERY SELECTION ADAPTIVE INTELLIGENT TM CONVENTIONAL 3A IN (FACTORY SETTING) OUT 1/2 TO 1 TURN Your thermostat includes a screw on the back marked "3A", allowing for the Programmed Recovery/conventional recovery choice. 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. Before programming, you must know for which recovery method your thermostat has been set. 3A · With Programmed Recovery, the dwelling will reach the comfort temperature at the exact time you have programmed into the thermostat. See pages 1-4 for detailed explanation of Programmed Recovery. M2120C · With conventional recovery, the programmed time will mark the start of recovery; therefore, you should program the start time to be earlier than the desired comfort time. It may require some trial and error to arrive at the best starting time, and the best starting time will vary as the seasons change. 5 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 s shows in the lower right-hand corner (see illustration), the thermostat is set for conventional recovery. If you would rather have Programmed Recovery, remove thermostat from wallplate, turn screw 3A (on back of thermostat) clockwise until it bottoms. DO NOT OVERTIGHTEN. · If the s does not show, the thermostat is set for Programmed Recovery. If you would rather have conventional recovery, remove thermostat from wallplate, turn screw 3A (on back of thermostat) out 1/2 to 1 turn. RECOVERY SETTING 6 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 Press and release. The display shows 1:00 PM Mon. Press and hold until the current day appears in the display. Press and hold until the current time appears in the display. Be sure AM or PM appears as desired. You have programmed the current day and time. Go on to Step 2. PM MON DAY PM TUE AHEAD BACK PM TUE 7 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. Some trial and error may be required to arrive at the best starting times. The schedule form on page 39 provides an opportunity to plan your schedule. STEP 2 SET THE PROGRAM SCHEDULE AND HEATING TEMPERATURES Start by programming the WAKE time and temperature for weekdays. The thermostat requires a program for WAKE. You can program LEAVE, RETURN and SLEEP or not, as you please. WAKE Press and release. Note that the display shows WAKE and the preprogrammed time and temperature. If you have air conditioning and the display reads COOL, press and release to switch to HEAT. AM MON TUE WED THU FRI WAKE HEAT SET PT SET HEAT/COOL AM MON TUE WED THU FRI WAKE HEAT SET PT PROGRAMMING YOUR 8 PROGRAMMING YOUR THERMOSTAT NOTE: The display shows Programmed Recovery setting in the following instructions. DAY 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 WAKE HEAT SET PT AM MON TUE WED THU FRI WAKE HEAT AHEAD BACK SET PT 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. If your thermostat can switch automatically between heating and cooling, the heating temperature must be at least 2 AM MON TUE WED THU FRI WAKE HEAT SET PT 9 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. Press and release. The display shows LEAVE, but no time or temperature. SET PT MON TUE WED THU FRI LEAVE HEAT LEAVE AHEAD BACK Press and hold until the display shows the desired starting time. AM MON TUE WED THU FRI LEAVE HEAT SET PT WARMER COOLER Press and hold until the display shows the desired temperature. AM MON TUE WED THU FRI LEAVE HEAT SET PT 10 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 RETURN HEAT AHEAD BACK Press and hold until the display shows the desired starting time. PM MON TUE WED THU FRI RETURN HEAT SET PT WARMER COOLER Press and hold until the display shows the desired temperature. PM MON TUE WED THU FRI RETURN HEAT SET PT 11 Program the SLEEP time and temperature, if desired. SLEEP Press and release. The display shows SLEEP and the preprogrammed time and temperature. PM MON TUE WED THU FRI SLEEP HEAT SET PT AHEAD BACK Press and hold until the display shows the desired starting time. PM MON TUE WED THU FRI SLEEP HEAT SET PT WARMER COOLER Press and hold until the display shows the desired temperature. PM MON TUE WED THU FRI SLEEP HEAT SET PT 12 PROGRAMMING YOUR THERMOSTAT Set the SATURDAY schedule. Use the same procedure as for weekdays. DAY Press and hold until SAT appears on the display. Press WAKE, LEAVE, RETURN or SLEEP to select the time period. PM SAT SLEEP HEAT SET PT WAKE LEAVE SLEEP RETURN AHEAD BACK Use the AHEAD/BACK keys to set the time and the WARMER/ COOLER keys to set the temperature. WARMER COOLER 13 Set the SUNDAY schedule. Use the same procedure as for weekdays. DAY Press and hold until SUN appears on the display. Press WAKE, LEAVE, RETURN, or SLEEP to select the time period. PM SUN SLEEP HEAT SET PT WAKE LEAVE SLEEP RETURN AHEAD BACK Use the AHEAD/BACK keys to set the time and the WARMER/ COOLER keys to set the temperature. You have completed setting the program schedule and heating temperatures. If you have air conditioning, go to Step 3. If you do not have air conditioning, press and release to start the program. Go to Step 4. 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 PM TUE LEAVE 14 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. First program the WAKE temperature for weekdays. WAKE Press and release. The display shows WAKE and the time and temperature you programmed for heating. AM SUN WAKE HEAT SET PT SET HEAT/COOL Press and release so COOL shows on the display, along with the preprogrammed cooling temperature. AM SUN WAKE COOL SET PT DAY If display reads SAT or SUN, press and hold until MON TUE WED THU FRI appears. AM MON TUE WED THU FRI WAKE COOL SET PT 15 WARMER COOLER Press and hold until the display shows the desired temperature. 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. If you desire a lower cooling setting, the heating setting must first be lowered accordingly. AM MON TUE WED THU FRI WAKE COOL SET PT 16 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 LEAVE COOL SET PT WARMER COOLER Press and hold until the display shows the desired temperature. AM MON TUE WED THU FRI LEAVE COOL SET PT Program the RETURN temperature, if desired. RETURN Press and release. The display shows RETURN, the time programmed for heating, and 26° C. PM MON TUE WED THU FRI RETURN COOL SET PT WARMER COOLER Press and hold until the display shows the desired temperature. PM MON TUE WED THU FRI RETURN COOL SET PT 17 Program the SLEEP temperature, if desired. SLEEP PM SET PT COOL Press and release. MON TUE WED THU FRI SLEEP WARMER COOLER Press and hold until the display shows the desired temperature. PM MON TUE WED THU FRI SLEEP COOL SET PT 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 SAT COOL SLEEP SET PT WAKE Press WAKE, LEAVE, RETURN or SLEEP to select the time period. LEAVE SLEEP RETURN 18 PROGRAMMING YOUR THERMOSTAT WARMER COOLER Use the WARMER/COOLER keys to set the temperature. PM SUN SLEEP COOL SET PT Set the cooling temperatures for the SUNDAY schedule. Use the same procedure as for weekdays. DAY Press and hold until SUN appears on the display. WAKE Press WAKE, LEAVE, RETURN or SLEEP to select the time period. LEAVE SLEEP RETURN 19 WARMER COOLER Use the WARMER/COOLER keys to set the temperature. You have completed programming the cooling temperatures. 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 Press and release to start the program. Go to Step 4. PM TUE LEAVE 20 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. The fan goes on and off with the air conditioner in summer. In winter, the fan on most systems starts a few minutes after the furnace comes on. It stops a few minutes after the furnace goes off. The fan starts and stops with the furnace in some electric heat systems. FAN ON AUTO FAN ON AUTO 21 Then set the system switch. HEAT: The thermostat controls your heating system. OFF: Both the heating and cooling systems are off. COOL: The thermostat controls your air conditioning system. AUTO: The thermostat controls either your heating or air conditioning system, depending on room temperature. You have finished programming your thermostat. HEAT OFF COOL AUTO HEAT OFF COOL AUTO HEAT OFF COOL AUTO HEAT OFF COOL AUTO Now, while you enjoy precision temperature control, read on to learn about the operating flexibility that makes this thermostat THE SMART CHOICE. If you removed it from the wall to program, replace it following the procedure on page 32. 22 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: SKIP NEXT PERIOD Press and release. The name of the period to be skipped will flash in the display until the next regularly scheduled period starts. Press and release. The display will show the name of the previous period and flash "temporary" until the next regularly scheduled period starts. PM TUE LEAVE RETURN SET PT To go back to the temperature of the previous program period: CHANGE TO LAST PERIOD PM TUE WAKE TEMPORARY SET PT 23 To temporarily raise or lower the temperature for the current period only: WARMER COOLER Press and hold until the desired temperature is reached. The display will flash "temporary" until the next programmed time period starts. SET PT HEAT TEMPORARY If you change your mind: RUN PROGRAM Press and release to cancel any of the temporary settings. PM TUE LEAVE SET PT OPERATION 24 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 LEAVE SLEEP 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. Press and release to return to normal operation. COOLER RUN PROGRAM 25 HOLD TEMP OPERATING THE THERMOSTAT MANUALLY WARMER other extended absence. It does not cancel your program. Press and release. Press and hold to change the temperature setting. After a few seconds the display will show the current temperature. SET PT HEAT This feature is particularly useful when you go on vacation or COOLER SET PT HEAT TEMPERATURE PRESENT SETTING Press and release to check the temperature setting. RUN PROGRAM SET PT HEAT Press and release to cancel manual control. NOTE: Moving the system switch also cancels hold. PM TUE LEAVE SET PT 26 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 LEAVE HEAT RETURN RUN PROGRAM Press and release to return to normal operation. PM MON TUE WED THU FRI RETURN SET PT 27 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. PM MON TUE WED THU FRI SLEEP ON HEAT SET PT RETURN DAY Press and release to display the next daily time and temperature for that period. Press and release to return to normal operation. PM SAT SLEEP HEAT SET PT M RUN PROGRAM PM MON TUE WED THU FRI RETURN SET PT 28 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. Applicable if thermostat is set for Programmed Recovery: During recovery from energy savings, the setting displayed will not match the programmed setting. This is because the thermostat gradually changes the temperature setting during recovery to provide most efficient use of the heating or cooling equipment. SET PT HEAT 29 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. UDand off the 31 REPLACING THE THERMOSTAT on the tabs at 2 Swing down and press on lower edge until thermostat snaps in place. 1 Hang the thermostat the t6p of the base. 3 Tighten the captive screws. 32 MAINTAINING YOUR THERMOSTAT REPLACING THE BATTERIES 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. Unless the display is blank (indicating the batteries are dead) when you start, you won't have to reprogram the thermostat if you can insert the new batteries within 20-30 seconds of taking out the old ones. To replace: If your thermostat has a system switch, set it to OFF. s Remove the thermostat from the wall. See page 31. s Lift the batteries out of the holder. s s s s Insert the new batteries, making sure the positive (+) terminals all face toward the right. Replace the thermostat on the wall. See page 32. Reprogram, if necessary. M468 33 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. 34 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. Program The times and temperatures you set to define the comfort and energy savings periods for each schedule (weekdays, Saturday, Sunday). Programmed Recovery Recovery automatically starts early enough so your house is at the comfort setting by the time you've chosen. Set point The temperature you set on the thermostat. The thermostat turns the heating or cooling equipment on and off to maintain this temperature at the thermostat location until another temperature setting goes into effect. Setup Raising the temperature in the house for a set period every day in summer for energy savings. The higher temperature is the energy saving temperature. 35 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. The program, which is the same for all days of the week, is: Period WAKE LEAVE RETURN SLEEP Start Time 6:00 AM - - - - - - No - - - - - - No 10:00 PM Temperature Heating Cooling 21° C 26° C program - - - - - - - program - - - - - - - 16° C 26° C Recovery The time when the thermostat operates the heating or air conditioning equipment to return the house from the energy savings to the comfort temperature. If thermostat is set for Programmed Recovery, the thermostat starts the recovery period early so the house will be at the comfort setting by the time you've chosen. Saturday program schedule The schedule of WAKE, LEAVE, RETURN and SLEEP period start times and temperatures that you program to run on Saturdays. Setback Reducing the temperature in the house for a set period every day in winter for energy savings. The lower temperature is the energy savings temperature.