User manual HONEYWELL T7512C

[. . . ] Programmable Load Controller USER'S GUIDE Weekday/Weekend (5-day/Saturday/ Sunday) Programmable Heat and/or Cool Conventional and Heat Pump Time-of-Use Pricing T7512A, B, C 1 TM Honeywell Scientific Atlanta 69-1003-1 69-1003--1 Welcome to the world of comfort and energy savings with your new Scientific Atlanta/ Honeywell SuperStat thermostat. 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. 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. [. . . ] If you do not enter an offset, the offset is 0°. The first time you press the OFFSET key, the offset for rate 1 is displayed (note the indicator on the thermostat display as shown in Fig. Use the WARMER and COOLER keys to set the offset value. 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 Time-of-Use Pricing, enter offsets for the cooling season as you did for the heating season. 12 69-1003--1 Step 3--Set the System and Fan Controls After programming the thermostat, set the system and fan controls as follows: The status of the system is as follows when the associated indicator is displayed: The thermostat will control your heating system according to the schedule you programmed (heat pump in heating mode). HEAT: The emergency heater element of the heat pump is on. 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 displayed: systems are off (heat pump off). HEAT: 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. 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. 13 69-1003--1 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. When nothing is displayed, the fan is set to come on with the heating or cooling equipment as needed. AUTO is the normal setting for most 14 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. Step 4--Start the Thermostat Program To start the thermostat using the program you have just entered, press the RUN PROGRAM key. If you subscribe to Time-of-Use Pricing, the thermostat records usage for each rate. [. . . ] Make sure the current day and time are correct. · Keep in mind that it takes time for the system to recover. 22 69-1003--1 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. [. . . ]