User manual HONEYWELL T7518A

[. . . ] Programmable Commercial Load Management Thermostat Weekday/Weekend (5-day/Saturday/Sunday) Programmable T7518A, D USER'S GUIDE 69-1623 Welcome to the world of comfort and energy savings with your new Honeywell Programmable Load Management Thermostat. This thermostat allows full weekday/weekend programming so you can set the thermostat to control the temperature in your home according to your personal schedule and preferences. When programmed according to the instructions in this guide, the features available with this thermostat will not only keep you comfortable, but will also save you energy. In addition to being programmable, this thermostat also contains a communications module. [. . . ] 69-1623 11 When nothing is displayed, the fan is in AUTO mode (it comes on with the heating or cooling equipment, as needed). AUTO is the normal setting and allows a single-speed fan to turn on automatically with the air conditioner or furnace. If you have a two-speed fan, it usually runs on high with the air conditioner and on low with the furnace. OPERATING YOUR THERMOSTAT Normally you want your thermostat to run according to the program you entered; however, you can also change your program to perform the following operations. NOTE: The system control must be set to HEAT or COOL to perform the following operations. Temporarily Change Temperature Setting for the Current Period Only Press the Warmer or Cooler key until the temperature you want is displayed. The temporary setting stays in effect only until the next scheduled program change. (If you 12 69-1623 Step 4--Start the Thermostat Program To start the thermostat using the program you have just entered, press the Run Program key. subscribe to Time-of-Use Pricing, it stays in effect only until the next rate change. ) To cancel the temperature change, press the Run Program key. When a temporary temperature is in effect, the display alternates between the time/temperature and the temporary setting. Hold a Temperature Indefinitely Press the Hold Temp key and then set the temperature using the Warmer or Cooler keys. This temperature stays in effect until you press the Run Program key. Check the Current Temperature Setting To check the current (programmed) temperature setting, press the Present Setting key. Then verify the setting you selected. 13 Check the Programs You Entered Press the Weekday Schedule or Weekend Schedule key. Each time you press the key, the next program schedule is displayed. You can use this feature to verify that you correctly entered the program as shown in your Personal Programming Charts. Check Usage This thermostat keeps a record of the current and accumulated on-time of your heating and cooling equipment. It tracks current day usage (since midnight) and accumulated usage (since the accumulator was last cleared). If you subscribe to either of the following special programs, there may be times when it does not operate as you expect. Before calling for service, read the following information. Direct Load Control (DLC) When the thermostat is operating under DLC, the amount of time your heating/cooling system can operate is controlled by radio signal from your utility company. If you notice the 10 AM 16 temperature is higher or lower than the setting you programmed into the thermostat, check the thermostat display. To indicate the equipment is under DLC, the thermostat displays the word SAVING. You cannot control the heating/ cooling equipment when it is under DLC. [. . . ] If SAVING is displayed, the system is in DLC mode and your thermostat is utility controlled. Cooling or heating cannot come on until the DLC period ends. · Allow time for the furnace to heat up and the fan to come on before checking for heat at the register. · Be aware that it is normal for the current setting and display temperature to differ occasionally. [. . . ]