Programmable Load Controller USER’S GUIDE TM Honeywell Scientific Atlanta Weekday/Weekend (5-day/Saturday/ Sunday) Programmable Heat and/or Cool Conventional and Heat Pump Time-of-Use Pricing T7512A,B,C 1 69-1003-1 69-1003—1
Welcome to the world of comfort and energy savings with your new Scientific Atlanta/ Honeywell SuperStat thermostat. to take advantage of Time of Use Pricing, a service that can increase your energy savings further. This thermostat allows full weekday/weekend programming so that you can set the thermostat to control the temperature in your home according to your personal schedule and preferences.
communicate with your thermostat. If you have any questions concerning the application of this thermostat or this special program and its features, please contact your local utility. AM COOL AUTO HR TUE 1 INDICATOR FOR TIME-OF USE PRICING 2 3 4 M7904 Fig. 1. Time-of-Use Pricing indicator.
Table of Contents Recovery From Setback ................................................................................................................... 5 Programming Your Thermostat ......................................................................................................... 6 Personal Programming Charts .................................................................................................. 8 Step 1—Set the Current Time/Day .........................................................
AM and begin warming the house to 72°F. If 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.
Programming Charts. There are four time periods available for weekdays, Saturday, and Sunday—WAKE, LEAVE, RETURN, and SLEEP. 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 both the cooling and heating seasons. PROGRAMMING YOUR THERMOSTAT IMPORTANT Batteries must be installed to maintain time and date in the event of power loss.
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.
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. Personal Programming Charts Cooling Schedule (for Summer Use): Time Cooling Temperature Weekday WAKE LEAVE RETURN SLEEP Saturday WAKE LEAVE RETURN SLEEP Sunday WAKE LEAVE RETURN SLEEP NOTE: Temperatures cannot be set any higher than 88°F or any lower than 45°F.
Heating Schedule (for Winter Use): If you subscribe to Time-of-Use Pricing, use the following table to plan the offsets you will enter for each Time-of-Use Pricing rate. You should enter different offsets for the heating and cooling seasons. You do not need to enter an offset for rate 1.
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 with the error. BACK keys until the current day is displayed. After you have set the time and day, press the RUN PROGRAM key.
Press the AHEAD or BACK keys to set the weekday WAKE time from your Personal Programming Charts. Press the WARMER or COOLER keys to set the weekday WAKE temperature from your Personal Programming Charts. 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. Repeat the above sequence for the other weekday schedules: LEAVE, RETURN, and SLEEP.
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 for rate 2 is -2 (72° -2° = 70°). If you do not enter an offset, the offset is 0°. Entering a Cooling Schedule Press the SYSTEM key until the thermostat displays the word COOL to indicate you are in the cooling mode.
Step 3—Set the System and Fan Controls The status of the system is as follows when the associated indicator is displayed: After programming the thermostat, set the system and fan controls as follows: HEAT: The thermostat will control your heating system according to the schedule you programmed (heat pump in heating mode). EM. HEAT: The emergency heater element of the heat pump is on.
homes 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. 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. Step 4—Start the Thermostat Program When FAN is displayed, the fan is on continuously.
OPERATING YOUR THERMOSTAT 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 subscribe to Time-of-Use Pricing it stays in effect only until the next rate change takes effect.) To cancel the temperature change, press the RUN PROGRAM key.
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. Hold a Temperature Indefinitely You could find this operation useful when you go out of town on business or on vacation. 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 or the PRESENT SETTING key.
If you subscribe to Time-of-Use Pricing, there are eight usage values that can be displayed. The first time you press the USAGE key, the thermostat displays the current usage value for rate 1. Each time you press the USAGE key again, usage values for rates 2, 3 and 4 are then displayed. If you continue to press the USAGE key, accumulated usage values are displayed for rates 1 through 4. and accumulated on-time of your heating and cooling equipment.
key. If you subscribe to Time-of-Use Pricing, your utility can also clear the accumulators by sending a message to the thermostat. pressing the RUN PROGRAM key will cancel your change. Change Fan or System Control Settings Permanently Change a Program Change the fan setting 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.
rate. Refer to Programming Your Thermostat section for information on setting the offset for Time-of-Use Pricing. To notify you a rate change will be occurring, the Time-of-Use indicator on the thermostat begins blinking onehalf hour before the rate change takes effect. THERMOSTAT OPERATION WHEN TIME-OF-USE PRICING IS IN EFFECT Normally your thermostat operates as you programmed it. If you subscribe to Time-of-Use Pricing, however, there may be times when it does not operate as you expect.
As the batteries run low, the display shows bAt Lo. This low battery indication flashes for one to two months before the batteries run out completely. Replace the batteries as soon as possible after the indicator starts flashing. REPLACING THE THERMOSTAT BATTERIES IMPORTANT Batteries must be installed to maintain the time and date in the event of a power loss.
• Install the fresh batteries as shown. Make sure positive and negative terminals are oriented correctly. • Replace the battery door.
TROUBLESHOOTING GUIDE IF… Display will not come on. THEN… • There is no power applied to the thermostat. Check fuse or circuit breaker. Temperature display will not go lower than 45°F or higher than 88°F during programming. • You have reached the temperature setting limit. The setting range is 45°F to 88°F. Temperature change occurs at the wrong times. • Check the program times for the period in question. Be sure that AM and PM indications are correct. Make sure the current day and time are correct.
Heating will not come on. • Check that the system control on the thermostat is set to HEAT. • If the temperature setting is higher than current temperature, and HEAT is displayed, contact your utility company. Cooling will not come on. • Check that the system control on the thermostat is set to COOL. • Check the system fuse or circuit breaker and replace or reset, if necessary. • The thermostat has a built-in time delay on cooling.
protection and shut down. If the air conditioner does not come on after ten minutes and COOL is displayed, contact your utility. The house is too warm or too cool. • Press PRESENT SETTING key to check the current temperature setting. • If desired, change the temperature setting. See Operating Your Thermostat section. • If you subscribe to Time-of-Use Pricing, you may need to adjust your offset temperatures to provide a more comfortable temperature.
The thermostat’s current setting does not match the display temperature. • Be aware that it is normal for the current setting and display temperature to differ on occasion. • During recovery from setback or setup, setting and display temperatures may differ to within ±1° for up to 30 minutes after the recovery period. Incorrect room temperature showing on thermostat display. • The thermostat is factory-calibrated, and cannot be adjusted. Thermostat is flashing CALL .
TYPICAL ENERGY SAVINGS PERCENTAGE OF HEATING ENERGY YOU CAN SAVE o ONE 10 F ENERGY SAVINGS PERIOD* o 70 TO 60oF; 8 HRS/DAY 9% TO 11% 12% TO 13% 14% TO 15% DODGE CITY, KS CHICAGO, IL 12% - 23% NEW YORK, NY 11% - 21% 12% - 23% BILLINGS, MT MPLS.
PERCENTAGE OF COOLING ENERGY YOU CAN SAVE o ONE 5 F ENERGY SAVINGS PERIOD* o 75 TO 80oF; 8 HRS/DAY 7% TO 9% 10% TO 11% 12% TO 14% DODGE CITY, KS CHICAGO, IL NEW YORK, NY 9% - 15% 13% - 20% 13% - 20% BILLINGS, MT MPLS.
Toll-free Customer Assistance For all questions concerning this thermostat, please read and follow the instructions. If additional assistance is needed, call your utility’s Customer Assistance number. Before you call, please have the following information available—thermostat model number and date code, type of heating/cooling system (hot water, warm air, oil, gas, heat pump, etc).
WARRANTY CONDITIONS 29 69-1003—1
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69-1003—1
TM Honeywell Scientific Atlanta 69-1003—1 J.S. 6-96 32 Printed in U.S.
