Related Manuals for Honeywell T7512A
Summary of Contents for Honeywell T7512A
- Page 1 Energy Management Thermostat Weekday/Weekend USER’S GUIDE (5-day/ Saturday/Sunday) Programmable Heat and/or Cool Conventional and Heat Pump T7512A,B,C,D 69-1153 69-1153...
- Page 2 Welcome to the world of comfort and energy savings with your new Honeywell Energy 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.
- Page 3 DLC, the word SAVING is displayed on the thermostat. See Fig. 2. You must subscribe to these programs before your utility company can communi- cate with your thermostat. If you have any COOL AUTO questions concerning the application of this thermostat or these special programs and features, please contact your local utility.
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Page 4: Table Of Contents
Step 3—Set the System and Fan Controls ... 12 Step 4—Start the Thermostat Program ... 14 Operating Your Thermostat ... 14 Thermostat Operation When Special Programs are in Effect ... 18 Replacing the Thermostat Batteries ... 20 Troubleshooting Guide ... 22 Toll-Free Customer Assistance ... -
Page 5: Recovery From Setback
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. -
Page 6: Programming Your Thermostat
Charts. There are four time periods available for weekdays, Saturday, and Sunday— WAKE, LEAVE, RETURN, and SLEEP on the T7512A,B,C,D 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. - Page 7 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°...
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Page 8: Personal Programming Charts
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. - Page 9 Heating Schedule (for Winter Use): Time Schedule Period Time Weekday WAKE LEAVE RETURN SLEEP Saturday WAKE LEAVE RETURN SLEEP Sunday WAKE LEAVE RETURN SLEEP If you subscribe to Time-of-Use Pricing, use the following table to plan the offset values you will Heating enter for each Time-of-Use Pricing rate, use a Temperature...
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Page 10: Step 1-Set The Current Time/Day
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. - Page 11 or Cooler keys to set the weekday WAKE temperature from your Personal Program- ming 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.
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Page 12: Step 3-Set The System And Fan Controls
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. - Page 13 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.
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Page 14: Step 4-Start The Thermostat Program
Step 4—Start the Thermostat Program To start the thermostat using the program you have just entered, press the Run Program key. OPERATING YOUR THERMOSTAT Normally you want your thermostat to run according to the program you entered;... - Page 15 scheduled program change. (If you 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.
- Page 16 Clear key. NOTE: You cannot cancel the WEEKDAY WAKE program. 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).
- Page 17 Clear key. If you subscribe to Time-of-Use Pricing, your utility can also clear the accumulators by sending a message to the thermostat. Permanently Change a Program To permanently change a program, repeat the appropriate steps in Programming Your Thermo- stat.
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Page 18: Thermostat Operation When Special Programs Are In Effect
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... - Page 19 Time-of-Use Pricing If you subscribe to Time-of-Use Pricing, the thermostat displays the rate in effect, see Fig. 1. You cannot adjust which rate is in effect; you can only adjust the temperature offset value for each rate. Refer to Programming Your Thermostat section for information on setting the offset value for Time-of-Use Pricing.
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Page 20: Replacing The Thermostat Batteries
Although the thermostat has a low battery indicator, replace the batteries once every two years to prevent the thermostat from losing its time/date information in the event of a momentary power loss. As the batteries run low, the display shows bAt Lo. - Page 21 You will need two AA alkaline batteries; non- alkaline batteries will not last as long, and can leak, causing damage to the thermostat or the wall surface. We recommend Energizer® batteries. • Use a coin to carefully remove the battery door.
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Page 22: Troubleshooting Guide
88°F during programming. Temperature change occurs incorrectly. THEN… • There is no power applied to the thermostat. Check fuse or circuit breaker. • You have reached the temperature setting limit. The setting range is 45°F to 88°F. • Check the program times for the period in question. Be sure that AM and PM indications are correct. - Page 23 Heating will not come on. Cooling will not come on. • Check that the system control on the thermostat is set to HEAT. • Check the display. If SAVING is displayed, the system is in in DLC mode and the thermostat is utility controlled. Heating cannot come on until the DLC period ends.
- Page 24 Cooling will not come on. ( cont. ) • The thermostat has a built-in time delay on cooling. To prevent The house is too warm or too cool. equipment damage, allow five to ten minutes after changing the setting before the air conditioner starts.
- Page 25 • Check the display. 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.
- Page 26 • The thermostat is factory-calibrated, and cannot be adjusted. • You are a subscriber to one of the special pricing programs and your thermostat has lost communication with the utility company. Call the number displayed on the thermostat or the number on the thermostat label for information. 69-1153...
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Page 27: Toll-Free Customer Assistance
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). -
Page 28: Warranty Conditions
WARRANTY CONDITIONS.C.WARRANTY CONDITIONS; Honeywell warrants this product, excluding battery, 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 defective or malfunctions, Honeywell shall repair or replace it (at Honeywell’s option) within a reasonable period of time. - Page 29 This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by Honeywell that the defect or malfunction was caused by damage which occurred while the product was in the possession of a consumer.
- Page 30 If you have any questions concerning this warranty, please write our Customer Assistance Center, Honeywell Inc., P.O. Box 524, Minneapolis, MN 55440-0524. In Canada, write Retail Products ON15-02H, Honeywell Limited/Honeywell Limitée, 155 Gordon Baker Road, North York, Ontario M2H 2C9.
- Page 31 69-1153...
- Page 32 Honeywell Inc. Honeywell Plaza P.O. Box 524 Minneapolis, MN 55408-0524 69-1153 R.L. 9-97 Copyright © 1997 Honeywell Inc. All Rights Reserved ® U.S. Registered Trademark Home and Building Control Honeywell Limited-Honeywell Limitée 155 Gordon Baker Road North York, Ontario M2H 3N7 Printed in U.S.A.