• Your new Honeywell Chronotherm III Fuel Saver Thermostat is a precision instrument that’s quality-built to give you many years of satisfactory service. Each day of the week can be programmed independently so that, regardless of your schedule, you’ll save fuel while automatically maintaining the standard of comfort you require.

Jan 24, 2011  Circa (1986-1994) Honeywell Chronotherm T8082 12-30V Single Stage Heating and Cooling thermostat equipped with a single mercury switch. See video for information: Any other questions- please ask.

• STEP 1 Press and release. The display PRESENT shows 1:00 PM Mon.

ENTER THE DAY AND TIME DAY/TIME You can program this thermostai either on the wall or in your Press and hold until the current pii-] hand. SEE PAGE 27 TO FIND day appears in the display. • Press and hold until the display shows the desired heating temperature. If the display flashes while you are holding down TEMPERA- TURE 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 3 degrees below the air condition- ing temperature. • Program the EVENING time and Press and release. The display shows EVENING, but no time or temperature, if desired.

Press and hold until the display shows the time you want the temperature to be at the comfort setting. Press and hold until the display shows the desired heating temperature. • Press and release. The display Set the cooling temperatures for shows COOL, the prepro- all the periods you’ve grammed cooling temperature programmed. Sapphirefoxx. And the programmed start time for NIGHT.

Press and hold until the display shows the desired cooling temperature for NIGHT. If the display blinks while you are holding down TEMPERATURE WARMER or COOLER, you have. • Press and release. The display shows the preprogrammed cool- ing temperature and the pro- grammed start time for MORNING.

Press and hold until the display shows the desired cooling temperature for MORNING. [-Ep--JE] Press and release. The display shows the preprogrammed cool- ing temperature and the pro- grammed start time for MIDDAY. • If necessary, press and release STEP 3 to enter the programming mode.

COPY THE PROGRAM TO THE DESIRED DAYS Press and hold until the day You can copy one day’s program containing the program to be to any other day or combination copied shows in the display. • Press and release to enter the STEP 4 programming mode. SET THE SCHEDULES AND TEMPERATURES FOR THE REMAINING DAYS Press and hold until the day you wish to program shows on the Use the procedures described in display.

Steps 2 and 3 and summarized in this step to program the If COOL shows on the display, remaining days. • Press and release to enter the You have completed the time ’ copy mode. The next day flashes and temperature program for on the display. Now you can copy it into additional days if you wish. Press and release the Copy To key to select the day that’s flashing, or the Day key to bypass it. • TEMPORARILY CHANGING THE PROGRAM These features let you custom- tailor the program for those times when someone comes home early, or you or a colleague is working late, or you plan to be out for the evening. Changes made with these keys are active for one program period and then are cancelled.

• PERMANENTLY CHANGING Press and hold until the desired THE PROGRAM time period shows on the display. If your schedule changes or you want a different temperature, you can update any setting without affecting the rest of the program. Press and hold until the desired schedule day shows on the display.

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

• CHECKING THE PROGRAM Press and hold until the desired TIMES AND TEMPERATURES period shows on the display. The start time and temperature set- You can check all the stored ting will appear on the display. Settings without affecting the permanent program.

Press and release to display the next day’s time and temperature for that period. • REMOVING THE THERMOSTAT 1 Loosen the two captive screws at 2 Pull the thermostat out 3 Lift the thermostat up and off the the bottom cornerg of the case. From the bottom. REPLACING THE THERMOSTAT 2 Swing down and press on lower edge until ther- 1 Hang the thermostat on the tabs 3 Tighten the captive screws.