Honeywell Programmable Thermostat Owner's Manual
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Honeywell Programmable Thermostat Owner's Manual

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OWNER'S
MANUAL
How to operate your new Programmable Thermostat

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Summary of Contents for Honeywell Programmable Thermostat

  • Page 1 OWNER'S MANUAL How to operate your new Programmable Thermostat...
  • Page 2 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.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS Programmed Recovery ......... 1-4 Checking the current temperature setting .......... 29 Recovery Setting ........... 5-6 Maintaining Your Thermostat ......31-34 Programming Your Thermostat ......7-22 Removing the thermostat ........31 Set the current day and time ........7 Replacing the thermostat ........

  • Page 5: Programmed Recovery

    PROGRAMMED RECOVERY PROGRAMMED RECOVERY— BREAKTHROUGH TECHNOLOGY SENSES TEMPERATURE MORE LIKE YOU DO M168...
  • Page 6 Your new thermostat is so smart, Your body perceives temperature from a variety of sources, not only it’s almost human. 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.
  • Page 7 PROGRAMMED RECOVERY THE OPTIMUM COMFORT AND System Operating in Comfort Mode ENERGY SAVINGS SOLUTION REPL SUN MON TUE WED THU FRI SAT COOL ON HEAT ON WAKE LEAVE RETURN SLEEP TEMPORARY UNOCCUIPIED REPL SUN MON TUE WED THU FRI SAT COOL ON HEAT ON WAKE LEAVE RETURN SLEEP TEMPORARY UNOCCUIPIED Recovery Continues Recovery Begins...
  • Page 8 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.

  • Page 9: Recovery Setting

    RECOVERY SETTING Your thermostat includes a screw on the back marked “3A”, allowing RECOVERY SELECTION for the Programmed Recovery/conventional recovery choice. ADAPTIVE (FACTORY SETTING) INTELLIGENT OUT 1/2 TO 1 TURN CONVENTIONAL Your thermostat was shipped from the factory with the screw posi- tioned for Programmed Recovery.
  • Page 10 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). Press key. Check thermostat display. PROGRAM WAKE INDICATES THERMOSTAT IS SET FOR CONVENTIONAL RECOVERY •...

  • Page 11: Programming Your Thermostat

    PROGRAMMING YOUR THERMOSTAT STEP 1 Press and release. The display PRESENT SET THE CURRENT DAY AND TIME shows 1:00 PM Mon. DAY/TIME You can program this thermostat either Press and hold until the current on the wall or in your hand. SEE day appears in the display.

  • Page 12: Set The Program Schedule And Heating Temperatures

    IMPORTANT Before you begin STEP 2, determine if your thermostat is set for Programmed Recovery or conventional recov- ery. 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.
  • Page 13 PROGRAMMING YOUR THERMOSTAT If display reads SAT or SUN, NOTE: The display shows press and hold until MON TUE Programmed Recovery setting in MON TUE WED THU FRI HEAT WED THU FRI appears. the following instructions. WAKE Press and hold until the display shows the desired starting time.
  • Page 14 degrees below the air conditioning temperature. For MON TUE WED THU FRI HEAT example, if the cooling setting is LEAVE 24 C, the maximum heating setting is 22 C. Program the LEAVE time and Press and release. The display LEAVE temperature, if desired.
  • Page 15 PROGRAMMING YOUR THERMOSTAT Program the RETURN time and Press and release. The display RETURN temperature, if desired. shows RETURN, but no time or MON TUE WED THU FRI HEAT temperature. RETURN AHEAD Press and hold until the display BACK shows the desired starting time. MON TUE WED THU FRI HEAT RETURN...
  • Page 16 Program the SLEEP time and Press and release. The display SLEEP temperature, if desired. shows SLEEP and the prepro- MON TUE WED THU FRI HEAT grammed time and temperature. SLEEP AHEAD Press and hold until the display shows the desired starting time. BACK MON TUE WED THU FRI HEAT...
  • Page 17 PROGRAMMING YOUR THERMOSTAT Set the SATURDAY schedule. Press and hold until SAT appears Use the same procedure as for on the display. HEAT weekdays. SLEEP Press WAKE, LEAVE, RETURN WAKE LEAVE or SLEEP to select the time period. SLEEP RETURN Use the AHEAD/BACK keys to set the time and the WARMER/ AHEAD...
  • Page 18 Set the SUNDAY schedule. Use Press and hold until SUN the same procedure as for appears on the display. HEAT weekdays. SLEEP Press WAKE, LEAVE, RETURN, WAKE LEAVE or SLEEP to select the time period. SLEEP RETURN Use the AHEAD/BACK keys to set the time and the WARMER/ AHEAD WARMER...

  • Page 19: Set The Cooling Temperatures, If You Have Air Conditioning

    PROGRAMMING YOUR THERMOSTAT STEP 3 Press and release. The display WAKE shows WAKE and the time and SET THE COOLING HEAT temperature you programmed for TEMPERATURES, IF YOU WAKE heating. HAVE AIR CONDITIONING The program times are the same for both heating and cooling. Press and release so COOL Only the cooling temperatures shows on the display, along with...
  • Page 20 Press and hold until the display shows the desired temperature. WARMER MON TUE WED THU FRI COOL WAKE If the display blinks while you COOLER hold down TEMPERATURE WARMER or COOLER, you have reached the setting limit. If your thermostat can switch automati- cally between heating and cooling, the cooling temperature must be at least 2 degrees higher...
  • Page 21 PROGRAMMING YOUR THERMOSTAT Program the LEAVE Press and release. The display LEAVE temperature, if desired. shows LEAVE, the time pro- MON TUE WED THU FRI COOL grammed for heating, and 26 C. LEAVE WARMER Press and hold until the display COOLER shows the desired temperature.
  • Page 22 Program the SLEEP SLEEP temperature, if desired. Press and release. MON TUE WED THU FRI COOL SLEEP WARMER Press and hold until the display shows the desired temperature. COOLER MON TUE WED THU FRI COOL SLEEP Set the cooling temperatures for Press and hold until SAT appears the SATURDAY schedule.
  • Page 23 PROGRAMMING YOUR THERMOSTAT WARMER Use the WARMER/COOLER keys to set the temperature. COOLER COOL SLEEP Set the cooling temperatures for Press and hold until SUN the SUNDAY schedule. Use the appears on the display. same procedure as for weekdays. Press WAKE, LEAVE, RETURN WAKE LEAVE or SLEEP to select the time...
  • Page 24 Use the WARMER/COOLER keys to set the temperature. WARMER You have completed program- ming the cooling temperatures. COOLER NOTE: Some models will show Press and release to start the -AC, indicating the thermostat is program. PROGRAM operating on backup batteries Go to Step 4.

  • Page 25: Set The System And Fan Switches, If Your Thermostat Has Them

    PROGRAMMING YOUR THERMOSTAT STEP 4 FAN ON: The fan runs continu- AUTO ously. Use for improved air circula- SET THE SYSTEM AND FAN tion during special occasions or for SWITCHES, IF YOUR THERMO- more efficient electronic air clean- STAT HAS THEM. ing.
  • Page 26 Then set the system switch. HEAT: The thermostat controls your HEAT OFF COOL AUTO 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. AUTO: The thermostat controls HEAT OFF COOL...

  • Page 27: Operating Your Thermostat

    OPERATING YOUR THERMOSTAT TEMPORARILY CHANGING THE PROGRAM These features let you custom- tailor 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. Press and release. The name of To keep the current temperature SKIP the period to be skipped will flash...
  • Page 28 To temporarily raise or lower the Press and hold until the desired temperature for the current temperature is reached. The WARMER HEAT period only: display will flash “temporary” until TEMPORARY the next programmed time period COOLER starts. If you change your mind: Press and release to cancel any of the tempo- PROGRAM...

  • Page 29: Permanently Changing The Program

    OPERATING YOUR THERMOSTAT program. PERMANENTLY CHANGING WAKE LEAVE THE PROGRAM Press and release the desired period key. If your schedule changes or you SLEEP RETURN want a different temperature, you can update any setting without affecting the rest of the Press and hold until the desired schedule day shows on the display.

  • Page 30: Operating The Thermostat Manually

    HOLD other extended absence. It does TEMP HEAT not cancel your program. OPERATING THE THERMOSTAT MANUALLY Press and release. WARMER This feature is particularly useful Press and hold to change the when you go on vacation or COOLER temperature setting. After a few HEAT seconds the display will show the current temperature.

  • Page 31: Canceling Program Settings

    OPERATING YOUR THERMOSTAT CANCELING PROGRAM SLEEP SETTINGS Press and hold the desired period The thermostat requires time key until the time and tempera- LEAVE MON TUE WED THU FRI HEAT and temperature settings in the ture clear from the display (about LEAVE WAKE period, but any of the 3 seconds).

  • Page 32: Checking The Program Times And Temperatures

    CHECKING THE PROGRAM WAKE TIMES AND TEMPERATURES You can check all the stored Press and release the desired SLEEP settings without affecting the period key. The start time and MON TUE WED THU FRI ON HEAT permanent program. temperature setting will appear SLEEP on the display.

  • Page 33: Checking The Current Temperature Setting

    OPERATING YOUR THERMOSTAT TEMPERATURE CHECKING THE CURRENT Press and release. The display PRESENT TEMPERATURE SETTING will show the current temperature SETTING HEAT setting for several seconds, then Press a single key to compare revert to the room temperature. current room temperature to the settings at any time.

  • Page 35: Removing The Thermostat

    REMOVING THE THERMOSTAT 1 Loosen the two captive screws at the bottom corners of the 2 Pull the thermostat out from the Lift the thermostat UD and off the case. bottom. base.

  • Page 36: Replacing The Thermostat

    REPLACING THE THERMOSTAT 2 Swing down and press on 1 Hang the thermostat on the tabs at lower edge until thermo- the t6p of the base. stat snaps in place. 3 Tighten the captive screws.

  • Page 37: Maintaining Your Thermostat

    MAINTAINING YOUR THERMOSTAT REPLACING THE BATTERIES To replace: Insert the new batteries, making If your thermostat has a system Your thermostat uses three AA or sure the positive (+) terminals all switch, set it to OFF. AAA alkaline batteries, depending face toward the right.

  • Page 38: Power Outages

    POWER OUTAGES If the display goes off when power Backup batteries will hold the pro- is lost, either the backup batteries gramming and keep the display on need to be replaced or are not during most power outages. Once installed. When power is restored, the power is restored, the system the display will flash 1:00 PM to will resume normal operation.

  • Page 39: Glossary

    GLOSSARY Comfort temperature Program Set point The temperature you want in the The times and temperatures you The temperature you set on the morning and evening when you’re set to define the comfort and thermostat. The thermostat turns home. energy savings periods for each the heating or cooling equipment schedule (weekdays, Saturday, on and off to maintain this tem-...
  • Page 40 Period key Recovery Status lights—Lights on some One of the four keys—WAKE, The time when the thermostat models that show system operating LEAVE, RETURN, or SLEEP—that operates the heating or air mode. you press to check or program the conditioning equipment to return ENRG SAV light—This light start time and temperature for a the house from the energy savings...
  • Page 41 GLOSSARY Time period LEAVE—The time period when SLEEP—The time period when One of four program periods; you can set back (winter) or up you can set back (winter) or up WAKE, LEAVE, RETURN and (summer) the temperature for (summer) the temperature for SLEEP available with the thermo- energy savings because the energy savings because the...

  • Page 43: Your Personal Program

    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. Weekday Program START HEATING COOLING PERIOD TIME TEMPERATURE...

  • Page 44: Your Personal Program

    Sunday Program START HEATING COOLING PERIOD TIME TEMPERATURE TEMPERATURE WAKE LEAVE RETURN SLEEP YOUR PERSONAL PROGRAM...

  • Page 45: Troubleshooting Guide

    TROUBLESHOOTING GUIDE IF… THEN… Display will not come on. 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.
  • Page 46 Heating will not come one. 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. If temperature setting is higher than current temperature, and display says HEAT ON, contact your heating and air conditioning contractor.

  • Page 47: Typical Questions

    TYPICAL QUESTIONS 1. Why do some models of this Battery-operated thermostats do not have indicator lights to conserve thermostat have lights? battery power. Others may have one or two indicator lights, depending upon the exact model and application. First, the thermostat is a very accurate instrument designed to sense 2.
  • Page 48 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.
  • Page 49 TYPICAL QUESTIONS 7. My thermostat has ENRG SAV During Programmed Recovery, when you recover gradually to a next set and SYSTEM lights. Why do they point, you will stay in the energy-saving mode until the next programmed both go on at the same time? time is reached.

  • Page 51: Typical Energy Savings

    TYPICAL ENERGY SAVINGS Approximate percentage of energy cost savings* % Winter Savings Twice-A-Day, 5 C decrease % Summer Savings Once-A-Day, 3 C increase % Winter Savings Once-A-Day, 5 C decrease *Actual savings depend on your home, geographic location, number of energy saving periods and number of degrees increased or decreased.

  • Page 53: Quick Reference To The Keys

    QUICK REFERENCE TO THE KEYS Press these keys to: Begin the current day or time program- ming. PRESENT DAY/TIME Set the day of the week and select the program day during programming. Select the time period to program or WAKE LEAVE review.
  • Page 54 Set the temperature while programming and temporarily change the temperature WARMER during operation. Hold either key down to COOLER change the setting faster. Hold any temperature you desire for an HOLD TEMP extended period. CHANGE Change the temperature to the set point TO LAST of the previous period.

  • Page 55: Index

    INDEX Automatic Changeover ..9, 16 Lights ........*, 36 Set fan switch ......21 Batteries, replacement ....33 Maintenance ......31 Set heating temperatures ......8 Blinking display ......41 Manual operation ...... 26 Set program schedule ....8 Canceling programs ....
  • Page 56 Energy Savings, Programming steps ..... 7 Switch, system ......22 Typical ........46 Quick reference to SYSTEM light ......36 Energy-saving the keys ........ 47 System switch ......22 temperature ......35 RETURN ......37, 47 Table of Contents ......i ENRG SAV light ......
  • Page 60 S.M. Rev. 1-90 Printed in Taiwan R.O.C. Form Number 69-0378—1...

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