Heating or Cooling Thermostat and Wallplate or Heating/Cooling Thermostat and Subbase T8090A/191108A, Q682B OWNER'S MANUAL 1 69-0574-2 69-0574--2 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 lower and raise the temperature in your home one or more times every 24 hours. This allows you to significantly lower your fuel costs, while awakening (or returning home) to a comfortable temperature. Read this manual to learn how to use your new thermostat. Recycling Notice M3375 This control contains mercury in a sealed tube. Do not place control in the trash at the end of its useful life. If this control is replacing a control that contains mercury in a sealed tube, do not place your old control in the trash. Contact your local waste management authority for instructions regarding recycling and the proper disposal of this control, or of an old control containing mercury in a sealed tube. If you have questions, call Honeywell Inc. at 1-800-468-1502. 69-0574--2 2 TABLE OF CONTENTS Features Of Your Thermostat ........................................................................................................... 4 Setting The Temperature .................................................................................................................. 7 Inserting Clock Batteries ................................................................................................................... 8 Setting The Clock .............................................................................................................................. 9 Programming ................................................................................................................................... 10 Troubleshooting .............................................................................................................................. 14 Servicing The Thermostat ............................................................................................................... 23 Cycle Rate Adjustment .................................................................................................................... 23 Thermometer Adjustment ................................................................................................................ 24 Warranty .......................................................................................................................................... 27 3 69-0574--2 Features Of Your Thermostat 1 FLIP-UP COVER. Lift it up to set clock for energy savings and normal temperature periods. 2 THERMOSTAT COVER. Lift up and remove to adjust heat anticipator. 3 THERMOMETER. Provides accurate room temperature reading. 4 CLOCK. This clock provides a 24-hour slotted dial to hold the programming pins. 5 CLOCK HANDS. Turn minute hand clockto match the correct AM or PM wise time to the time indicator. 6 TIME INDICATOR. Arrow head indicates time for 24-hour dial. 7 PROGRAM INDEX WHEEL. Controls high and low temperature at specific time of day as set by program pins. 8 TEMPERATURE SETTING LEVERS. Left (blue mark) controls the low temperature, right (red mark) controls the high temperature. 1 2 3 M8726 69-0574--2 4 9 PROGRAM PINS. Must be inserted into 24-hour clock dial slots to control program index wheel. 10 PIN SLOTS. Located on 24-hour dial at 10-minute intervals for program pin insertion. 11 MANUAL PROGRAM ADVANCE BUTTON. Allows change from comfort to energy savings setting and vice versa without changing the program. 12 HEAT ANTICIPATOR SCALEPLATE. Calibrated to match the heating system current draw in amperes. 13 ANTICIPATOR SETTING LEVER. Must be adjusted to match the heating system primary control current. 14 MERCURY BULB AND BIMETAL ELEMENT (2). Provide automatic temperature control by switching the heating or cooling system on or off. 5 5 4 10 8 14 9 7 6 11 12 13 M8691 69-0574--2 15 191108AJ WALLPLATE. Provides mounting base and wiring connections for heating-only or cooling-only thermostat. 15 M2421 16 Q682B SUBBASE. Provides mounting base, wiring connections and manual switching control for heating/cooling thermostat. O B R W G Y 16 FAN ON AUTO HEAT OFF COOL M719 69-0574--2 6 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 temperature you want for normal comfort periods. NOTE: You may override the time program by setting both the red and blue levers to the same temperature set point. 9 LOW TEMPERATURE SETTING LEVER (BLUE MARK) HIGH TEMPERATURE SETTING LEVER (RED MARK) 50 60 70 80 12 10 9 8 7 6 5 2 11 2 50 60 70 80 3 11 4 3 211 2 4 3 11 Set the left lever (blue mark) to the temperature you want for normal comfort periods. Set the right lever (red mark) to the energy savings temperature you want when you are sleeping or your home is unoccupied. 6 Fig. 1--Setting high and low temperature levers. 7 10 9 8 7 6 5 For Cooling: M1520 69-0574--2 Inserting Clock Batteries Power is supplied to the clock by the 24 Vac transformer, by two AAA alkaline batteries (included), or by the heating or cooling control circuit. Backup batteries may be installed to supply power to the clock if power is interrupted when using 24 Vac powering method. Install batteries in thermostat as shown in Fig. 2. Once a year or when batteries are dead, replace with two new AAA alkaline batteries. We recommend Energizer® batteries. BATTERY LOCATION FOR (2) AAA BATTERIES; INSTALL WITH POSITIVE ENDS UP M7188 Fig. 2--Inserting clock batteries. 69-0574--2 8 Setting The Clock Lift thermostat flip-up cover and you'll find the 24-hour program dial, slotted in 10-minute increments. Adjust the clock to the current time by moving the minute hand carefully in clockwise direction. DO NOT reverse the minute hand. When time is correctly set, the Time Indicator Arrow (see Fig. 3) will point to the correct time and corresponding daytime (light) or nighttime (dark) band of the program dial. EXAMPLE: For 11 PM, the time indicator arrow will point directly to dark band. For 11 AM, the arrow will point to light band on dial. Time ends, move the minute hand carefully in a clockwise direction 23 hours. Do NOT reverse the minute hand, or damage to timer mechanism may occur. MINUTE HAND TIME INDICATOR ARROW Daylight Savings Time When Daylight Savings Time starts, move the minute hand carefully in a clockwise direction one hour. When Daylight Savings 9 M8561 Fig. 3--Setting the clock. 69-0574--2 Programming You can program your thermostat to automatically lower and raise the temperature one or more times every 24 hours. up to six temperature changes with the pins supplied. We recommend at least five hours for each energy saving period. 24-HOUR PROGRAM DIAL (GRAY AREA FOR NIGHT SETTINGS) Before setting your program: Lift thermostat flip-up cover and you'll find the 24-hour program dial. The slots on the program dial (Fig. 4) are for the program pins that can be inserted at ten-minute intervals. Three red and three blue program pins are included with your thermostat. The red pins start the high-temperature period; the blue pins start the low-temperature period. A heating program has been preprogrammed. A red pin is inserted at 6:00 AM for high temperature (comfort period); a blue pin is inserted at 10:00 PM for low temperature (energy saving period). Two additional sets of pins are located in the program pin storage area. You can set 69-0574--2 10 FLIP-UP COVER PROGRAM PINS THERMOSTAT COVER PROGRAM PIN STORAGE TIME INDICATOR ARROW M8692 PROGRAM PIN SLOT PROGRAM INDEX WHEEL MANUAL PROGRAM ADVANCE BUTTON Fig. 4--Program components. To change the pins or add a new energy savings period: · · To insert a pin, push it straight into the selected notch on the program dial until it's completely seated. To remove a pin, press against program dial and pull the pin straight out. DO NOT attempt to change a pin if it is engaged with the program index wheel. On heating/cooling systems, you must reset the pins when the seasons change. You will also probably want to change the lever positions. Decide when you want the energy savings period to start and insert a blue pin at the notch that corresponds to this time. After the blue pin engages, the furnace will be off until room temperature drops to the energy savings set point. WINTER SUMMER PROGRAM PROGRAM TEMPERATURE PIN IN TEMPERATURE PIN IN CONTROL °F °C CONTROL °F °C 58 27 80 14 BLUE RED 68 58 68 20 14 20 RED BLUE RED 75 80 75 24 27 24 BLUE RED BLUE M1690B · NIGHT ENERGY SAVING PERIOD Setting the Heating Program: Decide when you want the temperature to reach the comfort level. Find the notch on the dial that's 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. 11 BEGINS 10:00 PM ENDS 6:00 AM DAY BEGINS ENERGY 7:30 AM SAVING ENDS PERIOD 4:00 PM Fig. 5--Programming examples. · You can set both a day and a night program. See Fig. 5 for program examples. 69-0574--2 Setting the Cooling Program: Decide when you want the temperature to reach the comfort level. Find the notch on the dial that's one-half hour before this time and insert a blue pin. The half-hour head start gives the air conditioner time to cool the house before you wake up or arrive home. Decide when you want the energy savings period to start and insert a red pin at the notch that corresponds to this time. After the red pin engages, the air conditioner will be off until room temperature rises to the energy savings set point. 69-0574--2 12 Start Or End Programs With Manual Program Advance Button IMPORTANT:To prevent damage to the program advance mechanism, DO NOT use the program advance button within a 30-minute period before or after a program change. The manual program advance button enables immediate, one-time-only program changes to accommodate temporary schedule changes. Press the button to immediately begin an energy savings period or return to the normal setting. After pressing the button, check the program indicator to ensure the system is in the desired mode. If the program indicator shows blue, the lower temperature is in effect; if it shows red, the higher temperature is in effect. Using the manual advance button will not affect the stored program. 13 69-0574--2 Troubleshooting Your Honeywell thermostat requires little or no attention. Most problems can generally be traced to the following: Problem No heat. Check -- system switch. May be in OFF or COOL position. 1 -- fuse or circuit breaker. -- furnace power switch. May be Off. -- pilot flame. May be out. -- R and W thermostat connections. Action Move system switch to HEAT position. If blown or tripped, replace fuse or reset breaker. Move switch to ON. Relight pilot flame per furnace manufacturers instructions. Turn Off power to furnace. Check for correct terminal hookups. Repair any frayed or broken wires. Firmly tighten all terminal screws. Turn On power. Contact a qualified service technician for assistance. -- other problem. (continued) 69-0574--2 14 Troubleshooting (continued) Problem Check Action Turn timer ahead 12 hours. Move setting knob clockwise only. Move red pin one-half hour earlier on the program dial. Relocate pins to desired settings. Energy savings -- program dial for proper day or temperature program night phase. 12 hours off. Rooms do not warm up at programmed time. 2 Temperature change occurs at the wrong time. Room temperatures are not correct. -- timer program for heating system. May need more time to warm up rooms. -- programs pins for correct time locations. -- positions of thermostat setpoint levers. -- position of subbase system switch. Reset to desired temperatures. Move to desired operating position. (continued) 15 69-0574--2 Troubleshooting (continued) Problem Room temperatures are not correct (continued). Check -- thermostat circuits. Action HEATING-ONLY SYSTEM--Move temperature setting levers 5°F (3°C) above room temperature. Heating system should start. If the system does not operate, call a qualified technician. COOLING ONLY SYSTEM­Move temperature setting levers 5°F (3°C) below room temperature. Cooling system should start. If the system does not operate, call a qualified technician. HEATING/COOLING SYSTEM--With system switch at HEAT, move temperature setting levers 5°F (3°C) above room temperature. Heating system should start. (continued) 69-0574--2 16 Troubleshooting (continued) Problem Room Temperatures are not correct (continued). Check Action With system switch at COOL, move temperature setting levers 5°F (3°C) below room temperature. Cooling sys ...