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T8095A/191108AJ; TS8095A/191108AC; T8095A/Q682
Heating-only Thermostat and Wallplate or
Heating/Cooling Thermostat and Subbase
OWNER’S MANUAL
D.F. • Rev. 10-94 • • ©Honeywell Inc. 1994 • Form Number 69-0639—1
M3375
Automation and Control Solutions
Honeywell International Inc. Honeywell Limited—Honeywell Limitée
1985 Douglas Drive North 35 Dynamic Drive
Golden Valley, MN 55422 Scarborough, Ontario M1V 4Z9
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Welcome to the world of energy savings with your new Honeywell thermostat. The Honeywell Recycling Notice M3375 name is your assurance of accurate control and reliable operation for years to come. This control contains mercury in a sealed tube. Do not place control in the trash at the end of its Your new thermostat will automatically lower and useful life. raise the temperature in your home one or more times every 24 hours. This allows you to signifi- If this control is replacing a control that
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Welcome to the world of energy savings with your new Honeywell thermostat. The Honeywell Recycling Notice M3375 name is your assurance of accurate control and reliable operation for years to come. This control contains mercury in a sealed tube. Do not place control in the trash at the end of its Your new thermostat will automatically lower and useful life. raise the temperature in your home one or more times every 24 hours. This allows you to signifi- If this control is replacing a control that
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Features of Your 2 THERMOSTAT COVER. Lift up and remove to adjust heat anticipator. Thermostat 3 THERMOMETER. Provides accurate room temperature reading. 1 2 4 PROGRAM INDICATOR. Blue indicates low temperature is in effect; red indicates high temperature is in effect. 5 CLOCK. Provides a 24-hour slotted dial to hold the programming pins. 6 CLOCK HANDS. Turn minute hand clockwise to match the correct AM or PM time to the time indicator. 7 TIME INDICATOR. Arrow head (triangle shape) indica
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Features of Your 2 THERMOSTAT COVER. Lift up and remove to adjust heat anticipator. Thermostat 3 THERMOMETER. Provides accurate room temperature reading. 1 2 4 PROGRAM INDICATOR. Blue indicates low temperature is in effect; red indicates high temperature is in effect. 5 CLOCK. Provides a 24-hour slotted dial to hold the programming pins. 6 CLOCK HANDS. Turn minute hand clockwise to match the correct AM or PM time to the time indicator. 7 TIME INDICATOR. Arrow head (triangle shape) indica
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8 9 10 11 12 1 2 3 4 5 6 7 17 191108 WALLPLATE. Provides mounting base and wiring connections for heating- only or cooling-only thermostat. 18 Q682 SUBBASE (not included with thermostat; ordered separately). Provides mounting base, wiring connections and manual switching control for heating/cooling 17 thermostat. See Setting Subbase Switches section for additional information. O B R W G Y 18 FAN COOL ON AUTO HEAT OFF M1809 6 Setting the Temperature (Fig. 1) For Heating: ■ Set the left lever (blu
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8 9 10 11 12 1 2 3 4 5 6 7 17 191108 WALLPLATE. Provides mounting base and wiring connections for heating- only or cooling-only thermostat. 18 Q682 SUBBASE (not included with thermostat; ordered separately). Provides mounting base, wiring connections and manual switching control for heating/cooling 17 thermostat. See Setting Subbase Switches section for additional information. O B R W G Y 18 FAN COOL ON AUTO HEAT OFF M1809 6 Setting the Temperature (Fig. 1) For Heating: ■ Set the left lever (blu
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Setting Subbase Switches (If Applicable) The subbase system switch controls system The subbase fan switch controls fan operation operation as follows: as follows: HEAT—Heating system is controlled by the ON—Fan operates continuously. thermostat. Cooling system is off. AUTO—Fan operates with cooling equipment as COOL—Cooling sytem is controlled by the controlled by the thermostat or with heating thermostat. Heating system is off. equipment as controlled by the plenum fan OFF—Both the heating and
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Setting Subbase Switches (If Applicable) The subbase system switch controls system The subbase fan switch controls fan operation operation as follows: as follows: HEAT—Heating system is controlled by the ON—Fan operates continuously. thermostat. Cooling system is off. AUTO—Fan operates with cooling equipment as COOL—Cooling sytem is controlled by the controlled by the thermostat or with heating thermostat. Heating system is off. equipment as controlled by the plenum fan OFF—Both the heating and
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Setting the Clock ■ Lift thermostat flip-up cover to find the 24-hour one hour. When Daylight Savings Time ends, move program dial, slotted in 10-minute increments. the minute hand carefully in a clockwise direc- Adjust the clock to the current time by moving tion 23 hours. Do not reverse the minute hand, or the minute hand carefully in a clockwise damage to the timer mechanism may occur. PROGRAM DIAL direction. Do not reverse the minute hand. ■ After setting the time correctly, the Tim
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Setting the Clock ■ Lift thermostat flip-up cover to find the 24-hour one hour. When Daylight Savings Time ends, move program dial, slotted in 10-minute increments. the minute hand carefully in a clockwise direc- Adjust the clock to the current time by moving tion 23 hours. Do not reverse the minute hand, or the minute hand carefully in a clockwise damage to the timer mechanism may occur. PROGRAM DIAL direction. Do not reverse the minute hand. ■ After setting the time correctly, the Tim
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period). Two additional sets of pins are located also probably want to change the lever in the program pin storage area. You can set positions. up to six temperature changes with the pins supplied. We recommend at least five hours Setting the Heating Program: for each energy saving period. ■ Decide when you want the temperature to ■ To change the pins or add a new energy reach the comfort level. Find the notch on the saving period— dial that is one-half hour before this time and •To insert a pin
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period). Two additional sets of pins are located also probably want to change the lever in the program pin storage area. You can set positions. up to six temperature changes with the pins supplied. We recommend at least five hours Setting the Heating Program: for each energy saving period. ■ Decide when you want the temperature to ■ To change the pins or add a new energy reach the comfort level. Find the notch on the saving period— dial that is one-half hour before this time and •To insert a pin
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Press the button to immediately begin an Start or End Programs with energy savings period or return to the normal Manual Program Advance Button setting. After pressing the button, check the program indicator on the thermostat cover to IMPORTANT: To prevent damage to the program assure the system is in the desired mode. If the advance mechanism, DO NOT use the program indicator shows blue, the lower tempera- program advance button within a 30-minute ture is in effect; if it shows red, the higher
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Press the button to immediately begin an Start or End Programs with energy savings period or return to the normal Manual Program Advance Button setting. After pressing the button, check the program indicator on the thermostat cover to IMPORTANT: To prevent damage to the program assure the system is in the desired mode. If the advance mechanism, DO NOT use the program indicator shows blue, the lower tempera- program advance button within a 30-minute ture is in effect; if it shows red, the higher
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Troubleshooting (Continued) Problem Check Action —other. Contact a qualified service technician for assistance. Energy savings —program dial for proper day Turn clock ahead 12 hours. Move temperature pro- or night phase. minute hand clockwise only. gram 12 hours off. Rooms do not —timer program for heating Move red pin one-half hour earlier 2 warm up at pro- system. May need more time on the program dial. grammed time. to warm up rooms. Temperature —program pins for correct time Relocat
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Troubleshooting (Continued) Problem Check Action —other. Contact a qualified service technician for assistance. Energy savings —program dial for proper day Turn clock ahead 12 hours. Move temperature pro- or night phase. minute hand clockwise only. gram 12 hours off. Rooms do not —timer program for heating Move red pin one-half hour earlier 2 warm up at pro- system. May need more time on the program dial. grammed time. to warm up rooms. Temperature —program pins for correct time Relocat
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Troubleshooting (Continued) Problem Check Action Room switch at COOL, move temperature temperatures setting levers 5° F [3° C] below room are not correct temperature. Cooling system should (continued). start. If the system does not operate, call a qualified service technician. Burner-on time —anticipator setting. (See Fig. 6 Increase anticipator setting by 0.05. too short. for anticipator location.) Observe burner operation. Burner-on time —anticipator setting. (See Fig. 6 Decrease anticipator s
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Troubleshooting (Continued) Problem Check Action Room switch at COOL, move temperature temperatures setting levers 5° F [3° C] below room are not correct temperature. Cooling system should (continued). start. If the system does not operate, call a qualified service technician. Burner-on time —anticipator setting. (See Fig. 6 Increase anticipator setting by 0.05. too short. for anticipator location.) Observe burner operation. Burner-on time —anticipator setting. (See Fig. 6 Decrease anticipator s
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Troubleshooting (Continued) Problem Check Action Thermostat setting —calibration of thermometer. See instructions on page 24. and thermometer reading disagree. (continued). Clock does not run. —voltage across the two Remove thermostat from the wallplate C terminals. or subbase and measure the voltage. Refer to the table on page 22 for cause and reaction. — pins in program dial. If pins are Push down on pins to make sure they not completely seated in are completely seated in program dial. program
