Programmable Load Management Thermostat Weekday/Weekend (5-day/ Saturday/Sunday) Programmable T7512A,B USER'S GUIDE 1 69-1575 69-1575 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. This module allows your utility company to communicate with your thermostat to 2 take advantage of special programs you can subscribe to that can further increase your energy savings. These special programs can include one or both of the following: Time-of-Use Pricing. If your utility offers Time-of-Use Pricing rates, this thermostat will communicate with the utility to inform you of the rate in effect at any given time. The rate that is in effect is indicated on the thermostat display as shown in Fig. 1. A special feature of this thermostat allows you to set an offset temperature that automatically adjusts your energy use for each rate. This typically involves control69-1575 ling your home at a higher temperature during the cooling season and a lower temperature during the heating season. AM HR TUE 1 2 COOL AUTO 3 4 stat is under DLC, the word SAVING is displayed on the thermostat. See Fig. 2. You must subscribe to these programs before your utility company can communicate with your thermostat. If you have any questions concerning the application of this thermostat or these special programs and features, please contact your local utility. AM COOL AUTO INDICATOR FOR TIME-OF USE PRICING M7904 Fig. 1. Time-of-use pricing indicator. Direct Load Control. If your utility offers Direct Load Control (DLC), this thermostat can be controlled by your utility to limit your cooling and heating use during peak demand times. When your thermo3 HR TUE SAVING M7903 SAVINGS INDICATOR Fig. 2. Savings indicator. 69-1575 Table Of Contents Recovery From Setback ........................................................................................................... Programming Your Thermostat ................................................................................................. Personal Programming Charts ................................................................................................. Step 1--Set the Current Time/Day ........................................................................................... Step 2--Enter the Program Schedules .................................................................................... Step 3--Set the System and Fan Controls ............................................................................... Step 4--Start the Thermostat Program .................................................................................... Operating Your Thermostat ...................................................................................................... Thermostat Operation When Special Programs are in Effect ................................................... Replacing the Thermostat Batteries ......................................................................................... Troubleshooting Guide ............................................................................................................. Toll-Free Customer Assistance ................................................................................................. Warranty Conditions ................................................................................................................. 5 6 8 10 10 12 14 14 18 20 22 27 28 4 69-1575 RECOVERY FROM SETBACK The term recovery refers to the process the thermostat uses to operate the heating or cooling equipment to return the house from the energy savings setting you selected for when you are away or asleep to the temperature you prefer when you are home and awake. This thermostat uses a recovery process that turns your heating/cooling equipment on or off at the time you program the temperature to change. For example, if you program the thermostat's heating program to 72°F at 6:00 AM, the heating equipment will come on at 6:00 AM and begin warming the house to 72°F. If 5 you want the temperature in the house to be 72°F at 6:00 AM, you should program the thermostat to an earlier time; for example, 5:30. (The exact amount of time it takes your home to warm or cool to the temperature you want depends on many factors such as the size of your heating/cooling equipment and the outdoor temperature.) If this thermostat is for a heat pump system, the thermostat uses an algorithm when recovering from setback that helps reduce the use of auxiliary heat. 69-1575 PROGRAMMING YOUR THERMOSTAT IMPORTANT Batteries must be installed to maintain time and date in the event of power loss. You will find it helpful to complete the Personal Programming Charts on the following pages before you begin programming the thermostat. Plan your program schedule of time and temperature settings for various times of the day by filling in the boxes in the Personal Programming Charts. There are four time periods available for weekdays, Saturday, and Sunday--WAKE, LEAVE, RETURN, and 6 SLEEP on the T7512A,B Thermostats. These periods can be displayed individually on the thermostat as you press the WEEKDAY SCHEDULE or WEEKEND SCHEDULE keys. You may want to enter a different schedule for the cooling and the heating seasons. WAKE is the time you get up. Generally you want the house at a comfortable temperature when you wake up and get ready to go to work or school. Set the WAKE time earlier than your alarm clock so the house has time to warm up or cool down before you get up. 69-1575 LEAVE is the time you leave for work or school. Generally, once you leave the house, you want the temperature higher or lower (depending on the season) so that you can save energy while you are away. RETURN is the time you return from work or school. Once again, you want the house at a comfortable temperature when you return and go about the normal activities of your day before bedtime. Set the RETURN time earlier than the time you actually get home so the house has time to warm up or cool down before you get there. SLEEP is the time you usually go to sleep. While you are sleeping, you can save energy by setting the thermostat to control the temperature higher or lower (depending on the season). For more comfortable sleeping, some people choose not to raise the cooling temperature at night. If you decide not to program the thermostat, it automatically controls heating and cooling temperatures as follows: Starting at 6:00 AM every day, the thermostat sets the heating temperature to 68° and the cooling temperature to 76°F. 7 69-1575 At 10:00 PM every night, the thermostat sets the heating temperature back to 60°F; the cooling temperature remains at 76°F. You do not need to enter a time and temperature program for every period if your schedule does not require it. For example, if your house is occupied during the day on weekdays, you can program only the WAKE and SLEEP times. NOTE: Temperatures cannot be set any higher than 88°F or any lower than 45°F. Personal Programming Charts Cooling Schedule (for Summer Use): Schedule Weekday Time Period WAKE LEAVE RETURN SLEEP WAKE LEAVE RETURN SLEEP WAKE LEAVE RETURN SLEEP Time Cooling Temperature Saturday Sunday 8 69-1575 Heating Schedule (for Winter Use): Schedule Weekday Time Period WAKE LEAVE RETURN SLEEP WAKE LEAVE RETURN SLEEP WAKE LEAVE RETURN SLEEP Time Heating Temperature If you subscribe to Time-of-Use Pricing, use the following table to plan the offset values you will enter for each Time-of-Use Pricing rate, use a numerical value as described in Enter Offset Values. You should enter a different offset value for the heating and cooling seasons, see chart. You do not need to enter an offset for rate 1. Offsets for Offsets for Cooling Season (+) Heating Season (-) Rate 2 Rate 3 Rate 4 Rate 2 Rate 3 Rate 4 Saturday Sunday 9 69-1575 Before programming the thermostat, remove the clear plastic overlay that covers the display. When pressing the keys, use the ball of your finger or a soft pencil eraser; using sharp fingernails or pencil points can damage the keypad. If you make a mistake during programming, press the Run Program key and reprogram the time, temperature, or offset value with the error. current day is displayed. After you have set the time and day, press the Run Program key. Step 2--Enter the Program Schedules Entering a Heating Schedule Refer to your Personal Programming Charts and proceed as follows: Press the System key until the thermostat displays the word HEAT to indicate you are in the heating mode. Press and release the Weekday Schedule key once. The words WAKE, MON...FRI and SET appear on the display. Press the Ahead or Back keys to set the weekday WAKE time from your Personal Programming Charts. Press the Warmer 10 69-1575 Step 1--Set the Current Time/Day To set the time, press and release the Set Clock/Day key once. Press Ahead or Back keys until the current time is displayed. To set the day, press and release the Set Clock/Day key again. Press Ahead or Back keys until the or Cooler keys to set the weekday WAKE temperature from your Personal Programming Charts. Repeat the above sequence for the other weekday schedules: LEAVE, RETURN, and SLEEP. Press the Weekend Schedule key until SAT, WAKE and SET appear on the display. Set the WAKE, LEAVE, RETURN and SLEEP schedules for Saturday just as you did for the weekdays. Press the Weekend Schedule key again so that SUN, WAKE and SET appear on the display. Set the WAKE, LEAVE, RETURN and SLEEP schedules for Sunday just as you did for the weekdays and Saturday. 11 Enter Offset Values Enter the offset value for each Time-of-Use Pricing rate using the Offset key. You can enter offset numbers only if you are a subscriber to Time-of-Use Pricing. The offset value you enter is the number of degrees you are willing to allow the heating or cooling temperature you have already programmed for normal operation to change so you can save money at each rate. For example, if you normally want your home heated to 72° when rate 1 is in effect, but are willing to let your home cool to 70° when rate 2 is in effect, your heating offset value for rate 2 is -2 (72° -2° = 70°). If you do not enter an offset, the offset is 0°. The first time you press the Offset key, the 69-1575 offset for rate 1 is displayed (note the indicator on the thermostat display as shown in Fig. 1). Use the Warmer and Cooler keys to set the offset value. Repeat the procedure for each rate. After you have entered the last offset value, press the Run Program key. Entering a Cooling Schedule Press the System key until the thermostat displays the word COOL to indicate you are in the cooling mode. Enter cooling temperatures for the WAKE, LEAVE, RETURN and SLEEP times by following the same instructions as for Entering a Heating Schedule above. If you subscribe to 12 Time-of-Use Pricing, enter offset values for the cooling season as you did for the heating season. Step 3--Set the System and Fan Controls After programming the thermostat, set the system and fan controls as follows: System Control If you have a conventional heating/cooling system, the system can be set to: HEAT, COOL or OFF. If you have a heat pump system, the system can be set to: HEAT, EM. HEAT, COOL or OFF. 69-1575 You can change the system setting by pressing the System key. Each time you press the key, the system status changes to the next setting. The status of the system is as follows when the associated indicator is displayed: HEAT: The thermostat will control your heating system according to the schedule you programmed (heat pump in heating mode). EM. HEAT: The thermostat will disable the heat pump and control the emergency heater element according to the schedule you programmed. COOL: The thermostat will control your air conditioning system according to the schedule you programmed (heat pump in cooling mode). No status: Both the heating and air conditioning systems are off (heat pump off) displayed. Fan Control There are two fan settings: AUTO and ON. Set the fan at the setting you want by pressing the Fan key. Each time you press the key, the fan status changes to the next setting. When FAN is displayed, the fan is on continuously. Use this setting for improved air circulation during special occasions or for more efficient electronic air cleaning. 13 69-1575 When nothing is displayed, the fan is in AUTO mode (it comes on with the heating or cooling equipment, as needed). AUTO ...