Heating/Cooling Thermostat and Subbase Package T8196A/Q682A OWNER'S MANUAL
Congratulations on your purchase of a Honeywell energy saving thermostat. The Honeywell name is your assurance of accurate control and reliable operation for years to come. During heating and cooling, this 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.
Table of Contents PAGE Features Of Your Thermostat .......................................................................................................... 4 Setting The Temperature ................................................................................................................. 6 Inserting Timer Batteries .................................................................................................................. 7 Setting The Timer ...................................................
Features Of Your Thermostat 1 FLlP-UP COVER. Lift it up to set timer for energy savings and comfort temperature periods. 2 THERMOSTAT COVER. Lift up to show timer. 3 THERMOMETER. Provides room temperature reading. 4 TEMPERATURE SETTING LEVERS Left (blue mark) controls the low temperature, right (red mark) controls the high temperature. 5 TIMER. This timer provides a 24-hour slotted dial to hold the programming pins. 6 TIMER SETTING KNOB.
6 10 12 11 O B R W G Y FAN ON AUTO HEAT OFF COOL M2385 9 8 7 M8722 10 PIN SLOTS. Located on 24-hour dial at 10-minute intervals for program pin insertion. 11 MERCURY BULB AND BIMETAL ELEMENT (2). Provide automatic temperature control by switching the heating or cooling system on and off. 12 SUBBASE. Provides mounting base, wiring connections and manual switching control for heating/cooling thermostat.
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 comfort periods. HIGH TEMPERATURE SETTING LEVER LOW TEMPERATURE SETTING LEVER 50 NOTE: You may bypass the time program by setting both the red and blue levers to the same temperature set point.
Inserting Timer Batteries BATTERY LOCATION FOR (2) AAA BATTERIES; INSTALL WITH POSITIVE ENDS UP Power is supplied to the timer by two AAA alkaline batteries (not included). Install the batteries in the 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. M8585 Fig. 2—Inserting timer batteries.
Setting The Timer Lift thermostat flip-up cover, and you’ll find the 24-hour program dial, slotted in ten-minute increments. Adjust the timer to the current time by carefully turning the knob clockwise . DO NOT reverse the knob. 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.
Programming 24-HOUR PROGRAM DIAL (GRAY AREA FOR NIGHT SETTINGS) You can program your thermostat to automatically lower and raise the temperature one or more times every 24 hours. FLIP-UP COVER 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 which can be inserted at ten-minute intervals. Three red and three blue program pins are included with your thermostat.
Setting the Heating Program You can set up to six temperature changes with the pins supplied. We recommend at least five hours for each energy savings period. 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 is 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.
Setting the Cooling Program 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. You can set both a day and night program. See Fig. 5. for program examples. Decide when you want the temperature to reach the comfort level. Find the notch on the program dial that is one-half hour before this time and insert a blue pin.
Troubleshooting Your Honeywell thermostat requires little or no attention. Most problems can generally be traced to the following: Problem No heat. Check Action — system switch. May be in OFF or COOL position. Move system switch to HEAT position. — 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. May be out. Relight pilot flame per furnace manufacturers instructions. — R and W thermostat connections.
Troubleshooting (continued) Problem Check Action No heat (continued). — other problem. Contact a qualified service technician for assistance. Energy savings temperature program 12 hours off. — program dial for proper day or night phase. Turn timer ahead 12 hours. Move setting knob clockwise only. Rooms do not warm up at programmed time. — timer program for heating system. May need more time to warm up rooms. Move red pin one-half hour earlier on the program dial.
Troubleshooting (continued) Problem Check Action Room temperatures are not correct (continued). — thermostat circuits. HEATING/COOLING SYSTEM—With system switch at HEAT, move temperature setting levers 5°F (3°C) above room temperature. Heating system should start. With system switch at COOL, move temperature setting levers 5°F (3°C) below room temperature. Cooling system should start. IF THE SYSTEMS DO NOT OPERATE, CALL A QUALIFIED TECHNICIAN. No cooling. — system switch.
Troubleshooting (continued) Problem Check Action — Y and R thermostat connections. Turn Off power to cooling system. Check for correct terminal hookups. Repair any frayed or broken wires. Firmly tighten all terminal screws. — other problems. Contact a qualified service technician for assistance. Timer is losing time. — batteries. May be dead. Replace with two new AAA alkaline batteries as shown on page 7. Thermostat setting and thermometer reading disagree. — level position of thermostat.
Servicing The Thermostat If the set point lever and the thermometer reading do not agree, follow the procedure on the next page. Cycle Rate Adjustment The equipment should cycle on and off just enough to keep the room temperature close to the temperature lever settings. If the thermostat seems to cycle the heating system too fast or too slow, adjust the cycle rate by moving the anticipator setting lever one indicator mark at a time (Fig. 6). Observe the heating system operation after each adjustment.
Remove thermostat cover and open the flipup cover. Set the thermostat cover on a table near thermometer of known accuracy. Allow at least five minutes for cover thermometer to sense area temperature, then compare the readings. Be careful not to touch thermometer or breathe on it. If the readings are the same, replace cover and put the system into operation. If the readings are different, insert a small screwdriver in the thermometer slot, shown in Fig. 7, and turn it until both thermometers read the same.
If you have questions regarding the installation and programming of your Honeywell thermostat, please contact the Honeywell Customer Assistance Center at 1-800-468-1502, Monday Friday, 7:00 AM to 5:30 PM, Central time. Before you call, please have the following information available: make and model of furnace, thermostat, and air conditioner.
Limited One-Year Warranty Honeywell warrants this product to be free from defects in the workmanship or materials, under normal use and service, for a period of one (1) year from the date of purchase by the consumer. If, at any time during the warranty period, the product is detective or malfunctions, Honeywell shall repair or replace it (at Honeywell’s option) within a reasonable period of time.
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 D.F. ©Honeywell Inc. 1994 Rev.
