User manual HONEYWELL MAGICSTAT 3355

[. . . ] MagicStat®/3355 Programmable Thermostat by Honeywell OWNER'S GUIDE Weekday/Weekend (5-day/ 2-day) Programmable Heat and/or Cool Low Voltage (20 to 30 Vac) Thermostat and Mounting Plate Model CT3355 1 69-1012 69-1012 Welcome to the world of comfort and energy savings with your new Honeywell MagicStat® Programmable Thermostat. Your new thermostat will automatically control the temperature in your home, keeping you comfortable while saving energy when programmed according to the instructions in this manual. Direct any questions concerning the application of this thermostat to Honeywell Customer Assistance at 1-800-468-1502, Monday-Friday 7:00 a. m. -5:30 p. m. , Central time. RECYCLING THERMOSTAT If this thermostat is replacing a thermostat that contains mercury in a sealed tube, see Fig. 1, do not place your old thermostat in the trash. [. . . ] Use the heating system table shown in the illustration (page 20) as a guide. Optimize the system on-time according to the type of system to minimize room temperature swings. Setting the screw out one turn means turning the screw approximately 360° counterclockwise, or about one complete turn. In the unlikely event that you want a longer system on-time, readjust screws A and/or B as follows: 18 69-1012 First, turn in both screws completely, then adjust for system type: · Warm Air Furnace--Set at the Hot Water setting (A--out one turn, B--leave in). · Electric Furnace--Leave at the Warm Air Furnace setting (A--leave in, B--leave in). NOTE: This thermostat does not have a setting for steam/gravity air. Cycles would not be long enough for accurate temperature control. IMPORTANT When using a high efficiency furnace such as a 90% or greater AFUE (Average Fuel Utilization Efficiency) unit, adjust screw A out one turn and leave screw B in. s The thermostat is set to read the temperature in degrees Fahrenheit. If readings are desired in degrees Celsius, adjust screw C out one turn, as shown in illustration. 19 69-1012 THERMOSTAT BACK A DISPLAY °F C­IN DISPLAY °C C­OUT 1 TURN C ADJUST SCREWS THROUGH HOLES TO SELECT OPERATION DESIRED FUEL SWITCH HEATING SYSTEM POSITION F WARM AIR A­IN B­IN FURNACE F HOT WATER A­OUT B­IN BOILER 1 TURN E ELECTRIC A­IN B­OUT FURNACE 1 TURN B D W FOR HIGH EFFICIENCY FURNACE (90%+ AFUE) ADJUST: SCREW A­OUT ONE TURN SCREW B­IN FUEL SWITCH ­ F POSITION Y G FUEL SWITCH F E R Rc M8796 20 69-1012 Step 7: Mount Thermostat Mounting Plate s Position the mounting plate on the wall. Use a level to make sure the mounting plate is level. Use a pencil to mark the two mounting holes. s Remove the mounting plate from the wall, and drill 3/16-inch holes in the wall (if drywall) as marked. For firmer material such as plaster or wood, drill 7/32-inch holes. Gently tap anchors (provided) into drilled holes until flush with the wall. s Reposition mounting plate over the holes, pulling wires through the wiring opening. Loosely insert two mounting screws into the holes. WALL ANCHORS (2) WIRES THROUGH WALL OPENING WALL MOUNTING PLATE MOUNTING SCREWS (2) M1718 21 69-1012 s Level for appearance only; thermostat functions properly even when not level. Tighten the mounting screws. LEVEL M1714A 22 69-1012 Step 8: Wire Thermostat Terminals NOTE: All wiring must comply with local codes and ordinances. If unsure about household wiring procedures, call your local heating/air conditioning contractor. Refer to masking tape labels you placed on the wires when you removed your old thermostat. s Match the letter of your old thermostat wire with the terminal of the corresponding letter on the back of your new thermostat. Refer to illustrations on pages 25 and 26. Hold the thermostat as shown to minimize need for wire extenders. If wires are still too short, use wire connectors (purchased locally) to extend wires. [. . . ] s During recovery from setback or setup, setting and display temperatures may differ for up to 30 minutes after recovery period. Incorrect room temperature showing s Make sure the hole behind the thermostat is plugged with on thermostat display. insulation to help prevent drafts from adversely affecting the thermostat operation. s The thermostat is factory-calibrated, and cannot be adjusted. bAt Lo remains on display after fresh batteries are installed. s Remove the batteries. Install fresh alkaline batteries. 35 69-1012 TYPICAL ENERGY SAVINGS FOR REPRESENTATIVE CITIES IN THE U. S. [. . . ]