MagicStat® CT3300 Programmable Thermostat Installation and Programming Instructions Weekday/Weekend (5-day/2-day) Programmable Heat and/or Cool Low Voltage (20 to 30 Vac) Thermostat and Mounting Plate Model CT3300 Table of Contents Installation Programming 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. If you have any questions about using this thermostat, visit our home expert Web site at www.honeywell.com/yourhome or call Honeywell Customer Relations at 1-800-468-1502. Operation Change the clock for Daylight/ Standard Time Set the Fan and System switches Replace the batteries Override the program settings Frequently asked questions Limited 1-Year Warranty 2 11 17 17 17 18 19 22 24 ®U.S. Registered Trademark Copyright © 2001 Honeywell · All Rights Reserved 69- 0654- 5 Fig. 1 MERCURY SWITCH Recycling thermostat If you are removing an old thermostat that contains mercury in a sealed tube (Fig. 1), do not place the old thermostat in the trash. Contact your local waste management authority for instructions regarding recycling and the proper disposal of the old thermostat. M3701 Installation Verify that you have the right thermostat Make sure that the CT3300 is the right thermostat for your heating/cooling system. Read the compatibility chart below to determine which system you have. If your system is not compatible with the CT3300, the table recommends an alternate Honeywell model. If you are unsure what type of thermostat is right for your system, visit us on the Web at www.honeywell.com/yourhome or call Honeywell Customer Relations at 1-800-468-1502. Compatible Alternate with CT3300? model Yes No No No CT1950 for 240 volts CT3600 CT3600 Heating/cooling system Conventional Single stage systems that include warm air furnaces and hot water. Electric Baseboard Electric powered heating strips located just above the floor, usually 120 to 240 volts. Steam A steam boiler with radiator heat. Heat Pump Heating and cooling are produced from the same outdoor unit (compressor) with no auxiliary or backup heat. Multistage Heat Pump Heating and cooling are produced from the same outdoor unit (compressor) with auxiliary or backup heat. Multistage Conventional A heating or cooling system with more than one stage. 2 INSTALLATION No CT3611 No See your contractor 69-0654-5 Step 1. Prepare for installation a. Carefully unpack your new thermostat. Save your receipt and make sure you have the following parts: · · b. Thermostat and mounting plate Labels · · Screws and anchors Installation and Programming Instructions Gather the needed tools and supplies listed below. Required tools and supplies · · · · Two AA alkaline batteries. Honeywell recommends Energizer® batteries. Screwdriver Hand or power drill with 3/16-inch or 7/32-inch drill bit Pencil Optional tools · · · Wire cutter/stripper or sharp knife Level Electrical tape c. Make sure that your heating and cooling systems are working properly. If there is a problem with either system, call a heating/air conditioning contractor--the problem may persist after you install the new thermostat. IMPORTANT: To avoid damaging the compressor in the air conditioner, do not operate the cooling system when the temperature outdoors is below 50°F (10°C). 69-0654-5 INSTALLATION 3 Step 2. Remove the old thermostat Fig. 2 a. b. c. d. M20140 Turn off power to the heating/cooling system, either at the furnace or at the fuse/circuit breaker panel. Remove the cover of your old thermostat (Fig. 2). Unscrew and remove the old thermostat's mounting plate from the wall, but do not disconnect the wires. Inspect the old thermostat wiring. If the wiring meets any of the following conditions, see the special wiring instructions on page 9. · The old thermostat is a clock thermostat with wires attached to the C or C1 terminals. · The old thermostat has 6 or more wires, excluding wires attached to C or C1 terminals. · The old thermostat has 3 wires. · There are 5 wires connected to the old thermostat. · There are extra wires that are not connected to the old thermostat. Fig. 3 e. M19086 Using the enclosed labels, mark the wires with the letter of the terminal that it is attached to on the old thermostat (Fig. 3). Do not label the wires by color. If the labels do not match the letters on the old thermostat terminals, see the wiring cross reference table on page 10. f. Fig. 4 WIRES THROUGH WALL OPENING Disconnect the wires from the old thermostat and wrap the wires around a pencil to keep them from falling back into the wall. Note: Remember, if your old thermostat contains mercury, you must recycle it. See page 2 for more recycling information. Check your progress M20133 Your wall should now look like Fig. 4. 69-0654-5 4 INSTALLATION Step 3. Install the mounting plate Fig. 5 a. b. Separate the mounting plate from the thermostat using a coin, as shown in Fig 5. Position the mounting plate on the wall. Be sure the mounting plate sits flush against the wall and none of the wires are trapped behind it. Level the mounting plate and use a pencil to mark the center of the mounting plate's screw holes. Remove the mounting plate and drill holes at the locations you marked. · · e. f. For drywall, drill two 3/16 inch holes. For plaster or wood, drill two 7/32 inch holes. c. M20139 d. Fig. 6 If installing in drywall, gently tap the anchors that were provided into the drilled holes until they are flush with the wall. Reposition the mounting plate over the holes, pull the wires through the wiring opening, and loosely insert the mounting screws into each of the drilled holes or anchors (Fig. 6). Make sure the mounting plate is level and tighten the mounting screws. g. M20129 Check your progress Fig. 7 The mounting plate is now mounted on the wall and should look like Fig. 7. Y R W M20128 Rc G 69-0654-5 INSTALLATION 5 Step 4. Set the thermostat for your type of heating system Fig. 8 THERMOSTAT BACK HEATING SYSTEM TYPE SELECTING ºF OR ºC IMPORTANT: Setting your thermostat correctly for your type of heating system allows it to maintain accurate temperature control, minimize swings in the temperature of the room, and efficiently run the fan. a. Use the FUEL SWITCH on the back of the thermostat to set your new thermostat for the type of fuel that your heating system uses: F­gas or oil, or E­electricity. Note: This setting enables proper fan operation. Use the A and B screws on the back of the thermostat to set your new thermostat for your type of heating system. See the heating system table on the next page to find the correct settings. Note: These screws are factory-set for a warm air, gas, or oil heating system. The thermostat is set to display the temperature in degrees Fahrenheit (°F). If you want to display the temperature in degrees Celsius (°C), adjust screw C out one turn. You can install the batteries and program your thermostat now, or you can wait until the thermostat is mounted on the wall. To install the batteries, see the instructions on page 8. To program the thermostat, see the instructions that begin on page 12. 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 b. E FUEL SWITCH F R Rc M20145 FUEL SWITCH c. d. 6 INSTALLATION 69-0654-5 Heating system table Note: Setting the screw "out one turn" means turning the screw 360° counter-clockwise, or one complete turn. Type of system Warm air, gas, or oil heating system with an efficiency rating under 90%. (The furnace efficiency rating should be on the furnace.) High-efficiency furnace such as a 90% or greater AFUE (Average Fuel Utilization Efficiency) unit Hot water boiler Electric furnace Screws A and B Use factory setting A­leave in B­leave in A­out one turn B­leave in A­out one turn B­leave in A­leave in B­out one turn Fuel switch F F F E Step 5. Wire the thermostat terminals Fig. 9 a. b. G Y Hold the thermostat as shown in Fig. 9. Using the labels on the wires, match the letter of your old thermostat wire with the corresponding terminal on the back of your new thermostat. Note: If the letters on the old thermostat terminals do not match the letters on the new thermostat terminals, you might not need to connect all of the old wires to the new thermostat. See the wiring cross reference table on page 10 for details. Loosen the terminal screws and slip each wire beneath its matching terminal (Fig 10). Securely tighten the terminals. W R c. M20125 Fig. 10 5/16 in. (8 mm) STRIP INSERT STRAIGHT UNDER SCREW HEAD d. END OF WIRE VISIBLE HERE M20126 69-0654-5 INSTALLATION 7 Step 6. Mount the thermostat Fig. 11 Fig. 12 a. b. Align the tabs at the top of the thermostat with the tabs at the top of the mounting plate (Fig. 11). Press the lower edge of the case to latch the bottom of the thermostat (Fig. 12). M20131 M20130 Step 7. Install the batteries Fig. 13 IMPORTANT: Batteries must be installed for programming and operation of the thermostat and heating/cooling system. Honeywell recommends using Energizer® batteries. a. b. c. REMOVING BATTERY DOOR Make sure that the System switch is set in the OFF position. Using a coin, open the battery door as shown in Fig. 13. Install the batteries. Make sure that the positive and negative terminals are oriented correctly as marked inside the battery case. Replace the battery door. Remove the clear plastic label from the digital display. M1719C d. Fig. 14 e. Check your progress When the batteries are installed correctly, the digital display flashes all entries once, then begins to flash a default time and the current temperature (Fig. 14). The flashing continues until you begin to program the thermostat. You are now ready to program the thermostat. Go to page 12. 8 INSTALLATION 69-0654-5 Special wiring instructions A clock thermostat with C or C1 terminals A clock thermostat has one or two extra wires attached to the C or C1 terminals that allow the clock to operate. These wires are not used during the installation of your new 3300 thermostat and must be insulated from each other to avoid damaging your electrical circuit. a. b. c. d. e. f. Make sure that power to the heating/cooling system is turned off. Locate the wires that are connected to the clock terminals marked C or C1. As you disconnect the wires, do not allow these wires to touch. Wrap the wires separately, using electrical tape to insulate the wires. Place the wires where they will not interfere with the operation of the new thermostat. You will not connect these wires to your 3300 thermostat. Continue with the installation as instructed on page 4 at step 2e. Six or more wires If your old thermostat has six or more wires (excluding clock wires attached to the C or C1 terminals), your heating/cooling system is most likely a variation of a heat pump or multistage system. Your 3300 thermostat will NOT work with such systems and should be returned to the place of purchase. See the compatibility table on page 2 for information about which programmable thermostat WILL work with your system. Three thermostat wires If you have three wires for heating only and can operate the fan using the old thermostat's fan switch, the 3300 thermostat will work with your system. Continue the installation procedure on page 4, step 2e. If you have a three-wire heating-only system and cannot operate the fan using the old thermostat's fan switch, the 3300 thermostat will probably NOT work with your system. Contact your heating contractor for installation assistance. Wires that are not connected to the old thermostat If there are extra wires that do not connect to your old thermostat, do not label them. You will not connect these wires to your new thermostat. Tape off the wires with electrical tape and place them where they will not interfere with the operation of the new thermostat. Continue the installation procedure on page 4, step 2e. 69-0654-5 INSTALLATION 9 Five wires connected to the old thermostat Your new thermostat has a factory-installed metal jumper between the R and Rc terminals (Fig. 15). Remove the jumper before wiring the R and Rc terminals. JUMPER (FACTORYINSTALLED). REMOVE IF 5-WIRE SYSTEM R Rc Fig. 15 Old thermostat terminals that do not match new thermostat terminals Use the table below to wire the new thermostat. Old thermostat Connect to new terminal thermostat terminal Description R, RH, 4, V Rc, R W, W1, H Y, Y1, M G, F O B C, X, B W2, H2 Y2 R* Rc* W Y G Do not continue installation Do not connect ...