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. [. . . ] Fan operation (fuel) switch. 6 MOUNT THERMOSTAT TO WALLPLATE Slide System switch to the Off position. Engage the tabs at the top of the thermostat and wallplate. 5 69-1620--1 CT3451 PROGRAMMABLE THERMOSTAT -- AA BATTERIES (3) Release the keys to display the three-digit software revision code. (Information displayed varies by model). PM TUE Hold Selec t M12583 FA Auto N On -- Coo SYSTE l Off M Hea t Press the key. (A typical example is shown, but information displayed varies by model. Restore power to the heating/cooling system. M12584A 8 CUSTOMIZE YOUR THERMOSTAT Your Honeywell thermostat comes preset to the most commonly used settings: -- Temperature (°F). To exit at any time, press the key until End displays. Setting °C or °F. 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. 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 Leave temperature. SET SET M20559 2. M12627B Leave a. Press or key to set Return temperature. SET SET M20561 3. M12629B Return a. Press or key to set Sleep temperature. SET SET M20563 M12631C 69-1620--1 8 CT3451 PROGRAMMABLE THERMOSTAT 4. Press or key to set Sleep time. SET Setting Indefinite Temperature Hold The Hold key allows you to indefinitely hold a temperature. Press or key to set indefinite temperature setting. M20564 b. Press or key to set Sleep temperature. SET M12641A M20565 5. 6. Repeat steps 1-4 in Setting Saturday and Sunday Program section to set the Sunday program. The thermostat reverts to displaying the current day time and temperature in five seconds. SET 11 SET FAN AND SYSTEM SWITCHES Manually control Fan and System settings using the switches located at the bottom of the thermostat case. 14 for switch locations. M18556 7. Repeat programming steps to set heat or cool program, as desired. PM TUE Hold Selec t 10 OPERATE YOUR THERMOSTAT Displaying Temperature Setting Press or key once to display present temperature setting. [. . . ] · If display is blank or says "bAtLo, " install fresh batteries. Allow five to ten minutes after changing the setting before the air conditioner starts. · If the temperature setting is lower than the current room temperature and the snowflake is displaying, the thermostat is operating correctly. · Plug the wiring hole in the wall behind the mounting plate with insulation to prevent drafts that can adversely affect thermostat operation. [. . . ]