User manual HONEYWELL CT3451

[. . . ] CT3451 Programmable Thermostat OWNER'S GUIDE If this control is replacing a control that contains mercury in a sealed tube, do not place your old control in the trash. Contact your local waste management authority for instructions regarding recycling and the proper disposal of an old control. MERCURY NOTICE 1 PREPARE FOR INSTALLATION Programmable Heat and/or Cool Low Voltage (20 to 30 Vac) Thermostat and Wallplate Congratulations on the purchase of your new thermostat!More than 100 years of Honeywell engineering produced this thermostat that can provide you with a more comfortable and convenient living environment. Your new thermostat automatically controls the temperature in your home, keeping you comfortable while saving energy when programmed according to these instructions. [. . . ] You can change these settings using the instructions that follow. To exit at any time, press the key until End displays. Setting °C or °F. -- Press the key again to display the current setting. -- Press the key to change the °C or °F indication. Setting Heat Cycle Rate (see Table 2 for the cycle rate options and equipment). -- Press the key to display the current heat cycle rate setting of 1, 3, 4, 5, 9, or 12 cph. M12589A -- Setting °F/°C Indication, Heat Cycle Rate, Heating/Cooling Temperature Control The following instructions provide information to change the heating cycle rate to match the heating equipment and to choose either the Fahrenheit (°F) or Celsius (°C) display. NOTE: All four steps must be completed to save changes to the °F/°C indication and the heat cycle rate. -- Use or keys to set the temperature setpoint to 52°F (11°C). SET If the desired cycle rate is displayed, press the key to display heating and cooling algorithm default. M12588A -- -- To change the heat cycle rate, press the key until your choice of 1, 3, 4, 5, 6, 9, or 12 is displayed. Press the key to display the heating and cooling temperature control algorithm configuration default. HT. M14691 M12582A -- -- Press and keys simultaneously for more than two seconds to enter Installer Setup. Press the key to change the heating and cooling control algorithm to C1 or C3. Press or key to set Wake time. SET Table 3. Preprogrammed Time and Temperature Settings. Period Wake Leave Return Sleep Time 6:00 AM 8:00 AM 6:00 PM 10:00 PM Heat Setpoint 70°F (21°C) 62°F (17°C) 70°F (21°C) 62°F (17°C) Cool Setpoint 78°F (26°C) 85°F (29°C) 78°F (26°C) M18570 82°F (28°C) b. Press or key to set Wake temperature. Wake is the time period when you want the house at a comfortable temperature when you get up in the morning. 7 69-1620--1 CT3451 PROGRAMMABLE THERMOSTAT Setting Saturday and Sunday Programs SET To set the Saturday program: 1. M12625C Wake a. Press or key to set Wake time. SET 2. Leave. Press or key to set Leave time. SET M20558 b. Press or key to set Wake temperature. M18566 b. Press or key to set Leave temperature. SET SET M20559 2. M12627B Leave a. Press or key to set Leave time. SET 3. Return a. Press or key to set Return time. SET M20560 b. Press or key to set Leave temperature. M18567 b. Press or key to set Return temperature. SET SET M20561 3. M12629B Return a. Press or key to set Return time. SET 4. Sleep a. [. . . ] Contact an air conditioning contractor for assistance. Adjust heat cycle rate in the Customize Your Thermostat section. · Plug the wiring hole in the wall behind the mounting plate with insulation to prevent drafts that can adversely affect thermostat operation. · Be aware that it is normal for the current setting and the displayed room temperature to differ occasionally. [. . . ]