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Clock Thermostat Fuel Saver • Heat Only—CT1800 • Heat/Cool—CT1801 • Central Heat/Cool or Single Stage Heat Pump without Auxiliary Heat—CT1802 Heating-Only Thermostat and Wallplate or a Heating/Cooling Thermostat and Subbase Models CT1800, CT1801, CT1802 OWNER’S MANUAL 69-0395-2...
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Welcome to the world of energy savings with your new Honeywell Fuel Saver Thermostat. The Honeywell name is your assurance of accurate control and reliable operation for years to come. Your new thermostat will automatically control the temperature in your home to provide a high level of comfort plus energy savings when programmed according to the instructions in this manual.
Table of Contents PAGE Features Of Your Thermostat ......................5 Reviewing Your Family Schedule ..................... 8 Setting The Temperature ........................9 Setting Subbase Switches ......................10 Inserting Clock Batteries ......................... 11 Setting The Clock ..........................12 Programming ........................... 13 Troubleshooting ..........................18 Servicing The Thermostat .......................
Features Of Your Thermostat FLIP-UP COVER. Lift it up to set clock for PROGRAM INDEX WHEEL. Controls energy savings and normal temperature high and low temperature at specific time periods. of day as set by program pins. Can be THERMOSTAT COVER. Lift up and moved to temporarily override a schedule.
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TEMPERATURE SETTING LEVERS. 14 AAA ALKALINE BATTERIES (2). Left (blue mark) controls the low tempera- Included to provide power to the clock. ture; right (red mark) controls the high temperature. PROGRAM PINS. Must be inserted into 24-hour clock dial slots to control program index wheel.
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15 WALLPLATE. Provides mounting base and wiring connections for heating-only thermostat. M2421 16 SUBBASE. Provides mounting base, wiring connections and manual switching control for heating/cooling thermostat. COOL AUTO HEAT M2411 69-0395—2...
Reviewing Your Family Schedule Write the answers to the following questions in the spaces provided to determine the program that fits your family schedule. SUMMER WINTER What comfort temperature would you like to maintain? ______ ______ What energy savings temperature would you like to maintain? ______ ______ What time does the first person get up in the morning?
Setting The Temperature For Heating: Set the left lever (blue mark) to the energy savings temperature you want when you are sleeping or your home is unoccupied. Set the right lever (red mark) to the tempera- HIGH LOW TEMPERATURE ture you want for normal comfort periods. TEMPERATURE SETTING LEVER SETTING LEVER...
Setting Subbase Switches (if applicable) The subbase system switch controls The subbase fan switch controls fan system operation as follows: operation as follows: HEAT: Heating system is controlled by the ON: Fan operates continuously. thermostat. Cooling system is off. AUTO: Fan operates with cooling equipment COOL: Cooling system is controlled by the as controlled by the thermostat or with the thermostat.
Inserting Clock Batteries Power is supplied to the clock by two AAA BATTERY LOCATION FOR (2) AAA BATTERIES; alkaline batteries (included). Install batteries in INSTALL WITH POSITIVE thermostat as shown in Fig. 2. Once a year, or ENDS UP when batteries are dead, replace with two new AAA alkaline batteries.
Setting The Clock direction one hour. When daylight saving time ends, move the minute hand carefully in Lift thermostat flip-up cover and you’ll find a clockwise direction 23 hours. Do not the 24-hour program dial, slotted in 10-minute reverse the minute hand, or damage to the increments.
Programming for high temperature (comfort period); a blue pin is inserted at 10:00 PM for low temperature You can program your thermostat to (energy saving period). automatically lower and raise the temperature one or more times every 24 hours. 24 HOUR PROGRAM DIAL PROGRAM PINS FLIP-UP (GRAY AREA FOR NIGHT...
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Two additional sets of pins are located in Setting the heating program: the program pin storage area. You can set up Decide when you want the temperature to to six temperature changes with the pins reach the comfort level. Find the notch on the supplied.
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Setting the cooling program (not Decide when you want the energy savings period to start and insert a blue pin at the applicable on heating-only model): notch that corresponds to this time. After the Decide when you want the temperature to blue pin engages, the furnace will be off until reach the comfort level.
to the high temperature period, move the Temporarily changing the program wheel from blue to red. The change will be You may temporarily raise or lower the in effect until the next regularly scheduled temperature if you come home early, stay up change.
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Pushing the setting levers together will hold a particular temperature until you change the levers back. This method is recommended for a long-term absence. • Simply push both levers to the tempera- ture you wish for system control. This temperature will stay in effect until you change the levers back.
Troubleshooting Your Honeywell thermostat requires little or no attention. Most problems can generally be traced to the following: Check Action Problem No heat. — system switch. May be in OFF or Move system switch to HEAT position. COOL position. — fuse or circuit breaker.
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Troubleshooting (continued) Problem Check Action No heat (continued). — other. Contact a qualified service technician for assistance. Energy savings — program dial for proper day or Turn clock ahead 12 hours Move minute temperature program 12 night phase. hand clockwise only.
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Troubleshooting (continued) Problem Check Action Heat-on time too short. — anticipator setting. (See Fig. 6 for Increase anticipator setting by 0.05. anticipator location.) Observe heating system operation. Heat-on time too long. — anticipator setting. (See Fig. 6 for Decrease anticipator setting by 0.05. anticipator location.) Observe heating system operation.
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— calibration of thermometer. See Thermometer Adjustment section. If you have questions regarding your Honeywell Fuel Saver Thermostat please visit our web site at www.honeywell.com/yourhome, or call the customer information line at 1-800-468-1502. 69-0395—2...
Servicing The Thermostat System On-Time Adjustment If the thermostat seems to cycle the heating system too fast or too slow, adjust the heating system on-time by moving the anticipator setting lever one indicator mark at a time (Fig. 6). A higher setting will increase heating system on- time length;...
Thermometer Adjustment • If the readings are different, insert a small screwdriver in the thermometer slot The thermometer has been accurately cali- shown in Fig. 7 and turn it until both brated at the factory and should only need thermometers read the same. adjustment if it has been dropped or mishandled.
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Toll-free Consumer Service For all questions concerning this thermostat, please read and follow the instructions. If you have questions regarding your Honeywell Fuel Saver Thermostat please visit our web site at www.honeywell.com/yourhome, or call the customer information line at 1-800-468-1502.
Golden Valley, MN 55422 This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by Honeywell that the defect or malfunction was caused by damage which occurred while the product was in the possession of a consumer.
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TYPICAL ENERGY SAVINGS FOR REPRESENTATIVE CITIES IN THE U.S. AND CANADA Savings for Once-A-Day Savings for Twice-A-Day Savings for 5°F (3°) 10°F (5°C) decrease 10°F (5°C) decrease* summer increase Edmonton Calgary Buffalo Louisville Los Angeles San Diego Minneapolis Halifax Vancouver Denver Boston Cincinnati...