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Timer Thermostat
Fuel Saver
Heating-Only Thermostat and Wallplate or Heating/Cooling
Thermostat and Subbase Models CT1500, CT1501, CT1502, CT1503
• Heat Only—CT1500
• Heat/Cool—CT1501
• Central Electric Heat/Cool or Single Stage
Heat Pump without auxiliary heat—CT1502
• Millivolt Heat—CT1503
OWNER’S MANUAL
69-0333-6
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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. Recycling Notice This control contains mercury in a sealed tube. Do not place control in the trash at the end of its usefu
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Table of Contents PAGE Features of Your Thermostat .............................................................................................. 4 Reviewing Your Family Schedule ....................................................................................... 7 Setting The Temperature .................................................................................................... 8 Setting Subbase Switches ...............................................................................
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1 Features of Your Thermostat 2 1 FLIP-UP COVER. Lift up cover to set timer for energy savings and normal tempera- ture periods . 2 THERMOSTAT COVER. Lift up cover and remove to adjust heat anticipator or install batteries. 3 THERMOMETER. Provides accurate room temperature reading. 4 TIMER. Provides 24-hour slotted dial to hold the programming pins. 5 TIMER SETTING KNOB. Turn clockwise 3 to match the correct a.m. or p.m. time to M8750 the time indicator. 6 TIME INDICATOR. Arrowhead indicates tim
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8 8 TEMPERATURE SETTING LEVERS. Left (blue mark) controls the low tempera- 4 ture; right (red mark) controls the high 14 5 temperature. 9 PROGRAM PINS. Must be inserted into 24-hour timer dial slots to control program index wheel. 10 PIN SLOTS. Located on 24-hour dial at 13 ten minute intervals for program pin insertion. 11 HEAT ANTICIPATOR SCALE PLATE. Calibrated to match the heating system current draw in amperes. 6 12 7 9 10 11 M8749 12 ANTICIPATOR SETTING LEVER. Must be adjusted to match the
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15 WALLPLATE Provides mounting base and wiring connections for heating-only thermostat. 16 SUBBASE Provides mounting base, wiring connections and manual switching control for heating/cooling thermostat. 15 M2421 O B R W G Y 16 FAN COOL ON AUTO HEAT OFF M2411 6 69-0333—6
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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? ___________ __________ Is anyone home all day? ___________ __________ What times does the last person leave in the m
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Setting The Temperature For Heating: Set the left lever (blue mark) to the energy HIGH LOW TEMPERATURE TEMPERATURE savings temperature you want when you are SETTING LEVER SETTING (BLUE MARK) sleeping or your home is unoccupied. See Fig. 1. LEVER (RED MARK) Set the right lever (red mark) to the tem- perature you want for normal comfort periods. 50 60 70 80 NOTE: You may bypass the time program by 50 60 70 80 setting both the red and blue levers to the same temperature setpoint. For Cooling
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The subbase fan switch controls fan Setting Subbase Switches operation as follows: ON—Fan operates continuously. (If Applicable) AUTO—Fan operates with cooling equip- The subbase system switch controls system ment as controlled by the thermostat or operation as follows: with the heating equipment as controlled HEAT—Heating system is controlled by the by the plenium fan switch. In electric thermostat. Cooling system is off. heat, heat pump, and fan coil systems, COOL—Cooling system is controlled
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BATTERY LOCATION FOR Inserting Timer Batteries (2) AAA BATTERIES; INSTALL WITH POSITIVE ENDS UP Power is supplied to the timer by two AAA alkaline batteries (included.) Install batteries in thermostat as shown. See Fig. 2. One a year, or when batteries are dead, replace with two new AAA alkaline batteries. We recommend Energizer® batteries. The thermostat itself will operate without batteries, but will not operate as a fuel saver. M8585 Fig. 2—Inserting timer batteries. 10 69-0333—6
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Setting The Timer Lift thermostat flip-up cover to find the 24-hour TIMER SETTING program dial, slotted in ten-minute increments. KNOB Adjust the timer to the current time by carefully turning the knob clockwise . Do not reverse the knob. When time is set correctly, the time indicator TIME arrow (see Fig. 3) will point to the correct time INDICATOR ARROW and corresponding daytime (light) or nighttime (dark) band of the program dial. EXAMPLE: For 11 p.m., the time indicator arrow will po
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(comfort period); a blue pin is inserted at Programming 10:00 p.m. for low temperature (energy saving You can program your thermostat to period). Two additional sets of pins are located automatically lower and raise the temperature in the program pin storage area. You can set one or more times every 24 hours. up to six temperature changes with the pins Refer to energy savings chart on the back supplied. We recommend at least five hours for cover for typical heating and cooling savings each energ
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24-HOUR PROGRAM DIAL Setting the heating program: (GRAY AREA FOR NIGHT SETTINGS) • Decide when you want the temperature to FLIP-UP reach the comfort level. Find the notch on COVER the dial that is one-half hour before this time and insert a red pin. The half-hour head start gives the furnace time to heat the house before you wake up or arrive home. PROGRAM PINS • Decide when you want the energy saving period to start and insert a blue pin at the THERMOSTAT notch that corresponds to this time. Af
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WINTER SUMMER Setting the cooling program (not 1 PROGRAM PROGRAM applicable on heating-only model): TEMPERATURE TEMPERATURE PIN IN PIN IN • Decide when you want the temperature to °F °C CONTROL °F °C CONTROL 58 14 27 BEGINS BLUE 80 RED reach the comfort level. Find the notch on NIGHT 10:00 PM ENERGY the dial that is one-half hour before this time SAVING ENDS 68 20 RED 75 24 BLUE PERIOD 6:00 AM and insert a blue pin. The half-hour head DAY BEGINS 58 14 BLUE 27 80 RED start gives the air conditio
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Temporarily changing the program You may temporarily raise or lower the temperature if you come home early, stay up PROGRAM INDEX late, plan to be out for the evening, leave on WHEEL vacation, etc. You can make a temporary change one of two ways—moving the program index wheel or pushing the setting levers together. TIME Moving the program index wheel will change INDICATOR the program just until the next regularly ARROW scheduled change is due: • Lift the thermostat cover. • Move the program inde
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EXAMPLE: If you are currently at the high temperature period and want to switch to the low temperature period, move the wheel from red to blue. If you are currently at the low temperature period and want to switch to the high temperature period, move the wheel from blue to red. The change will be in effect until the next regularly scheduled change. 50 60 70 80 Pushing the setting levers together will hold a particular temperature until you change the 50 60 70 80 levers back. This method is recom
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Troubleshooting Your Honeywell thermostat requires little or no attention. Most problems can generally be traced to the following: Problem Check Action No heat. — system switch. May be in OFF or Move system switch to HEAT position. COOL position. 1 — fuse or circuit breaker. If blown or tripped, replace fuse or reset breaker. — furnace power switch. May be off. Move switch to ON. — pilot flame (where applicable). Relight pilot flame per furnace manufacturer May be out. instructions. — RH and
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Troubleshooting (continued) Problem Check Action No heat. (continued) — other problem. Contact a qualified service technician for assistance. Energy savings — program dial for proper day or Turn timer ahead 12 hours. Move setting temperature program night phase. knob clockwise only. 12 hours off. Rooms do not warm — timer program for heating system. Move red pin one-half hour earlier on the up at programmed May need more time to warm up program dial. time. rooms. Temperature change — pr
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Troubleshooting (continued) Problem Check Action Heat-on time too — anticipator setting. (See Fig. 6.) Increase anticipator setting by 0.05 Observe short. heating system operation. Heat-on time too — anticipator setting. (See Fig. 6.) Decrease anticipator setting by 0.05. long. Observe heating system operation. No cooling. 1 — system switch. May be in OFF or Move switch to COOL position. HEAT position. — fuse or circuit breaker. If fuse is blown or breaker tripped, replace or reset. — condensor
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Troubleshooting (continued) Problem Check Action No cooling. — other problem. Contact a qualified service technician for (continued) assistance. Timer does not run. — batteries may not have been Install as shown on page 10. installed. — level position of thermostat. Replace with two new AAA alkaline batteries as shown on page 10. Thermostat setting — area around thermostat for drafts Reinstall thermostat wallplate or subbase. and thermometer or radiant heat. Use a spirit level. Thermostat should
