Programmable Thermostat by Duracraft 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 TD2400 1 69-1120
Welcome to the world of comfort and energy savings with your new Duracraft 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. RECYCLING THERMOSTAT If this thermostat is replacing a thermostat that contains mercury in a sealed tube, do not place your old thermostat in the trash.
Table Of Contents Step 1. Prepare For Installation ..................................................................................................... 4 Step 2. Remove Old Thermostat .................................................................................................... 6 Step 3. Install The Batteries ........................................................................................................... 7 Step 4. Program The Thermostat .....................................................
Step 1. Prepare for Installation ❑ Check Table 1 to make sure this thermostat is compatible with your system. If not, return to retailer. For more information, call Duracraft Consumer Services, toll-free 1-800-554-4558. Table 1. Compatibility Chart.
❑ Acquire tools and items as needed (below). Also purchase two AA alkaline batteries; we recommend Energizer® batteries.
Step 2. Remove Old Thermostat masking tape to label it with the old terminal designation. If there are only two wires, they do not need to be labeled. If there is an extra wire that is not connected to your old thermostat, you will also not be connecting it to your new thermostat. Keep the wires from falling back into the wall by wrapping them around a pencil as shown. ❑ Test to make certain that your heating and cooling systems are working properly.
Chronotherm® Thermostat wiring wallplate. Do not allow them to touch, or you may damage your transformer. Disconnect the wires and wrap them separately, using electrical tape. Do not wrap them together. Place the wires where they will not interfere with the operation of the new thermostat. Record the colors and terminal designation labels of the remaining wires.
❑ Purchase two AA alkaline batteries; nonalkaline batteries will not last as long, and may leak, causing damage to the thermostat or the wall surface. We recommend Energizer® batteries. ❑ Open the top cover of thermostat to access control panel and battery compartment. ❑ Make sure the thermostat is set in the OFF position. ❑ Use a coin to remove battery cover. ❑ Install the fresh batteries as shown, making sure positive and negative terminals are oriented correctly. ❑ Replace battery cover.
After the batteries are completely dead, the bAt-Lo indicator will disappear, leaving a completely blank display. the display is blank, the batteries are dead or incorrectly installed and you will have to reprogram. See pages 14 to 17 to reprogram. Press down on left ends of batteries to remove. If you insert the new batteries within 20 to 30 seconds of removing the old ones, you will not have to reprogram the thermostat.
• WAKE is the time period you want the house at a comfortable temperature when you get up and while you get ready for work or school. (This will be a higher temperature during heating season, or a lower temperature during cooling season.) • LEAVE is the time period you can set for an energy-saving temperature while you are away at work or school. (This will be a lower temperature during heating season, or a higher temperature during cooling season.
it. For example, a house that is occupied during weekdays would only require programs for WAKE and SLEEP. • SLEEP is the time period you can set for an energy-saving temperature while you are sleeping. (Again, lower heat or higher cool. For more comfortable sleeping, some people choose not to raise the cool temperature during the night.) If no program is entered for the weekends, the thermostat will operate on the weekday SLEEP program all weekend.
Personal Programming Chart Weekdays Heating Program Start Time Heating Temperaturea WAKE LEAVE RETURN SLEEP Weekendsb WAKE SLEEP aThe temperatures cannot be set any higher than 88°F (31°C) or any lower than 45°F (7°C). bIf you decide not to enter weekend programs, the SLEEP from the weekday program will copy to the weekend schedule.
Weekdays Cooling Program Start Time Cooling Temperaturea WAKE LEAVE RETURN SLEEP Weekendsb WAKE SLEEP aThe temperatures cannot be set any higher than 88°F (31°C) or any lower than 45°F (7°C). bIf you decide not to enter weekend programs, the SLEEP from the weekday program will copy to the weekend schedule. NOTE: If you decide not to program the thermostat, it will automatically control heating at 68°F (20°C), and cooling at 78°F (26°C), 24 hours a day.
This guide can be used for programming your new thermostat. NOTE: Batteries are required for operation and programming. When inserting batteries, set system switch to OFF. Remove battery door (on thermostat left side) using a coin at the bottom. Follow instructions on pages 8 and 9. Also note that the label inside the battery cover contains an abbreviated set of programming procedures for the thermostat.
TEMP Time Use to program WAKE time and to program WAKE temperature for MON FRI (Monday-Friday). Repeat sequence for LEAVE, RETURN, SLEEP. Time Weekend Press until SAT SUN (Saturday-Sunday), WAKE and SET appear on display. Use to TEMP program WAKE time and to program WAKE temperature for SAT SUN (Saturday-Sunday). Run Program Repeat sequence for SLEEP. Press and release to start the program. Cooling Program With System switch at Cool, follow the same instructions as for the Heating Program.
A quick guide for operating or making changes follows. NOTE: System switch must be set to Heat or Cool to perform the following: TEMP Temporarily Change temperature for current period only—Press ; temporary indicator will Run Program show on display and cancel itself at the next scheduled change; to cancel sooner, press . TEMP Hold Temp Hold a temperature indefinitely (such as if on vacation)—Press and ; HOLD will appear Run Program on display; to cancel, press .
Weekday Check Programs—Press Weekend , repeatedly to see each time and temperature; Run Program then press . Weekday Cancel Program—Press , Clear Weekend until program to cancel shows; then press . Usage Check Usage — Press for length of time heat or air conditioning has been running today since Clear midnight; press again for yesterday’s usage, press again for cumulative; press to clear Run Program cumulative reading if desired; then press .
Step 5. Adjust Fan Operation Switch, As Required ❑ The thermostat fan operation switch, labeled FUEL SWITCH (see illustration on page 19) is factory-set in the F position. This is the correct setting for most systems. If your system is an electric heat system, set the switch to E. The E setting will allow the fan to turn on immediately with the heating or cooling in a system where the G terminal is connected. Step 6.
❑ 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. 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).
Step 7. Mount Thermostat Mounting Plate ❑ Reposition mounting plate over holes, pulling wires through wiring opening. Loosely insert two mounting screws into holes. ❑ Level for appearance only; thermostat will function properly even when not level. Tighten mounting screws. ❑ Position mounting plate on wall. Use level to make sure mounting plate is level. Use a pencil to mark the two mounting holes. ❑ Remove mounting plate from wall, and drill 3/16-inch holes in wall (if drywall) as marked.
❑ In 5-wire installations only, be sure to remove the factory-installed jumper connecting terminals R and Rc. 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. METHOD TO INCREASE WIRE LENGTH Refer to masking tape labels you placed on wires when you removed your old thermostat.
❑ Loosen the terminal screws and slip each wire beneath its matching terminal. See illustration (lower right) for wire insertion technique. securely tighten terminals. ❑ Plug the hole in the wall with insulation to help prevent drafts from adversely affecting thermostat operation. M3002A Y G 22 W END OF WIRE VISIBLE HERE JUMPER (FACTORYINSTALLED) REMOVE IF 5-WIRE SYSTEM Rc INSERT STRAIGHT UNDER SCREW HEAD R 5/16 in.
4-WIRE HEAT/COOL (JUMPER INTACT) 2-WIRE HEAT-ONLY (JUMPER INTACT) A C B D W Y A C B D JUMPER G W Y G JUMPER Rc R HEATING RELAY OR VALVE COIL L1 (HOT) R HEATING RELAY OR VALVE COIL COOLING CONTACTOR COIL 1 L2 1 Rc POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. FAN RELAY L1 (HOT) L2 M1709B 1 23 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
3-WIRE COOL-ONLY (JUMPER INTACT) 5-WIRE HEAT/COOL (JUMPER REMOVED) A C B D W Y A C B D W G Y G JUMPER R HEATING RELAY OR VALVE COIL R Rc COOLING CONTACTOR COIL FAN RELAY COOLING CONTACTOR COIL 1 FAN RELAY 1 L1 (HOT) L1 (HOT) L2 L2 1 Rc L1 (HOT) L2 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. M848A POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
Step 9. Mount The Thermostat NOTE: To remove thermostat from wall, first pull out at bottom of thermostat, then remove top. A. ENGAGE TABS AT TOP OF THERMOSTAT AND SUBBASE. B. PRESS LOWER EDGE OF CASE TO LATCH. C. SWING OPEN COVER TO CHECK OPERATION.
Step 10. Check Thermostat Operation After Programming and Installing Heating Do not check heating system operation by jumpering thermostat terminals, such as the gas valve, zone valve, oil burner control at the primary control. This will damage the thermostat; Instead, jumper R and W wires at the thermostat. Cool Off Auto Heat Move the System switch to Heat and the Fan switch to Auto. On TEMP Press TEMP key until the setting is about 10°F (6°C) above room temperature.
Cooling To avoid possible compressor damage, do not operate the cooling system when outside temperature is below 50°F (10°C). See compressor manufacturer instructions for further information. Cool Off Auto Heat Move the System switch to Cool and the Fan switch to Auto. On Press TEMP key until setting is about 10°F (6°C) below room temperature. The cooling equipment and fan should start.
Step 11. Set The Fan and System Switches First set the Fan switch. Fan Auto: Normal setting for most homes. A single-speed fan will turn on automatically with the air conditioner or furnace. A twospeed fan will usually run on high with the air conditioner and on low with the furnace. Auto On Auto On Exception: If Fan Operation Switch on back of thermostat is set to E position (see page 16), fan will operate with furnace only. Fan On: The fan runs continuously.
Then set the System switch. Cool: The thermostat controls your air conditioning system. Off: Both the heating and air conditioning systems are off. Heat: The thermostat controls your heating system.
Troubleshooting Guide IF… Display will not come on. Temperature display will not go lower than 45°F (7°C) or higher than 88°F (31°C) during programming. Temperature change occurs at the wrong times. THEN… q Set the System switch to Off. Remove batteries. Insert backward for at least 5 seconds to reset thermostat. Replace batteries correctly. Display should come on. q Make sure batteries are fresh and installed correctly. q Gently clean battery contacts using a soft pencil eraser.
Heating will not come on. q Check that switch on thermostat is set to Heat. q Check the system fuse or circuit breaker and replace or reset if necessary. q Check for correct wiring and good connections. q Jumper wires R and W. If heat does not come on, contact your heating dealer. q If display is blank or says bAt Lo, install fresh batteries. q If temperature setting is higher than current Cooling will not come on.
Cooling will not come on. (continued) q The thermostat has a built-in time delay on q q q The house is too warm or too cool. q q cooling. Allow 5 to 10 minutes after changing the setting before the air conditioner starts. Make sure outdoor disconnect is energized (on). If temperature setting is lower than current temperature, and the display says Cool, move system switch from Cool to Off for 10 minutes. After 10 minutes, return switch to Cool position.
SYSTEM ON indicator is lit, but no heat is coming from the registers. q Allow time for the furnace to heat up and the fan to come on before checking for heat at the register. (Check to make sure system on-time is set correctly according to page 18 and 19.) q Readjust system on-time according to instructions on pages 18 and 19. The furnace cycles too frequently or the system cycle length is too short or too long.
Incorrect room temperature showing on thermostat display. q Make sure the hole behind the thermostat is plugged with insulation to help prevent drafts from adversely affecting the thermostat operation. q The thermostat is factory-calibrated and cannot be adjusted. Toll-free Customer Assistance For all questions concerning this thermostat, please read and follow the instructions. If additional assistance is needed, call Duracraft Consumer Services toll-free at 1-800-554-4558, Monday Friday, 7:00 a.m.
Limited One-Year Warranty Duracraft Corporation warrants this product, excluding battery, to be free from defects in the workmanship or materials, under normal use and service, for a period of one (1) year from the date of purchase by the consumer. If, at any time during the warranty period, the product is defective or malfunctions, Duracraft shall repair or replace it (at Duracraft’s option) within a reasonable period of time.
TYPICAL ENERGY SAVINGS FOR REPRESENTATIVE CITIES IN THE U.S. AND CANADA Savings for Once-A-Day 10°F (5°C) decrease Savings for Twice-A-Day 10°F (5°C) decrease* Savings for 5°F (3°) summer increase Approximate percentage of energy cost savings 30% 28% 26% 24% 22% 20% 18% 16% 14% 12% 10% 8% 6% 4% 2% Minneapolis St. Paul Montreal Ottawa Toronto Edmonton Regina Winnipeg Calgary Moncton North Bay Quebec St.
