User manual HONEYWELL T8090A

[. . . ] 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. [. . . ] 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. · You can set both a day and a night program. 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. Action Move system switch to HEAT position. If blown or tripped, replace fuse or reset breaker. Relight pilot flame per furnace manufacturers instructions. 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 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. Rooms do not warm up at programmed time. [. . . ] Allow at least five minutes for cover thermometer to sense area temperature, then THERMOMETER BACKSIDE OF compare the readings. Be careful not to touch SLOT FLIP-UP COVER thermometer or breathe on it. If the readings are the same, replace cover and put the system into operation. INSERT AND TURN SCREWDRIVER If the readings are different, insert a small screwdriver in the thermometer slot, shown in Fig. [. . . ]