Owner's Manual
Page 1
... AND PROGRAMMING INSTRUCTIONS Welcome to 30 Vac) Thermostat and Mounting Plate Model CT2800 Table of comfort and energy savings with your home, keeping you comfortable while saving energy. Weekday/Weekend (5-day/2-day) Programmable Heat and/or Cool Low ... ...2 Programming...12 Operation...18 Frequently Asked Questions ...22 Customer Assistance ...23 Limited Warranty ...24 ® U.S. All Rights Reserved 69-1638-1 Registered Trademark Copyright © 2003 Honeywell International Inc. Your new thermostat will automatically control the temperature in your new...
... AND PROGRAMMING INSTRUCTIONS Welcome to 30 Vac) Thermostat and Mounting Plate Model CT2800 Table of comfort and energy savings with your home, keeping you comfortable while saving energy. Weekday/Weekend (5-day/2-day) Programmable Heat and/or Cool Low ... ...2 Programming...12 Operation...18 Frequently Asked Questions ...22 Customer Assistance ...23 Limited Warranty ...24 ® U.S. All Rights Reserved 69-1638-1 Registered Trademark Copyright © 2003 Honeywell International Inc. Your new thermostat will automatically control the temperature in your new...
Owner's Manual
Page 2
... water. Alternate Model Yes No CT1950 for instructions regarding recycling and the proper disposal of thermostat is not compatible with CT2800? Installation MERCURY SWITCH INSTALLATION Verify You Have Correct Thermostat Fig. 1. If your local waste management authority for 240 volts 69-1638-1 2 Contact... your system is right for your system, visit us on the Web at www.honeywell.com/yourhome or call Honeywell Customer Care at 1-800-468-1502. Compatible with the CT2800,...
... water. Alternate Model Yes No CT1950 for instructions regarding recycling and the proper disposal of thermostat is not compatible with CT2800? Installation MERCURY SWITCH INSTALLATION Verify You Have Correct Thermostat Fig. 1. If your local waste management authority for 240 volts 69-1638-1 2 Contact... your system is right for your system, visit us on the Web at www.honeywell.com/yourhome or call Honeywell Customer Care at 1-800-468-1502. Compatible with the CT2800,...
Owner's Manual
Page 3
... stage. Prepare for Installation 1. Save your heating and cooling systems are working properly. Alternate Model No CT3600 No CT3600 No CT3611 No See your new thermostat. Heating/Cooling System Steam A steam boiler with CT2800? Compatible with radiator heat. Make sure that your receipt and make sure you install the new... with auxiliary or backup heat. Multistage Heat Pump Heating and cooling are produced from the same outdoor unit (compressor) with no auxiliary or backup heat. Honeywell recommends Energizer® • Wire cutter/stripper or sharp knife.
... stage. Prepare for Installation 1. Save your heating and cooling systems are working properly. Alternate Model No CT3600 No CT3600 No CT3611 No See your new thermostat. Heating/Cooling System Steam A steam boiler with CT2800? Compatible with radiator heat. Make sure that your receipt and make sure you install the new... with auxiliary or backup heat. Multistage Heat Pump Heating and cooling are produced from the same outdoor unit (compressor) with no auxiliary or backup heat. Honeywell recommends Energizer® • Wire cutter/stripper or sharp knife.
Owner's Manual
Page 4
... the wall, but do not match letters on the old thermostat (Fig. 3). e. NOTE: Remember, if your old thermostat (Fig. 2). d. c. Disconnect the wires from the old thermostat and wrap the wires around a pencil to on old thermostat terminals, see special wiring instructions section after Step 7. M20133 ...off power to the C or C1 terminals. • The old thermostat has six or more recycling information. If wiring meets any of your old thermostat contains mercury, you must recycle it is a clock thermostat with wires attached to the heating/cooling system, either at the furnace...
... the wall, but do not match letters on the old thermostat (Fig. 3). e. NOTE: Remember, if your old thermostat (Fig. 2). d. c. Disconnect the wires from the old thermostat and wrap the wires around a pencil to on old thermostat terminals, see special wiring instructions section after Step 7. M20133 ...off power to the C or C1 terminals. • The old thermostat has six or more recycling information. If wiring meets any of your old thermostat contains mercury, you must recycle it is a clock thermostat with wires attached to the heating/cooling system, either at the furnace...
Owner's Manual
Page 5
... mounting plate is flush against the wall and none of the wires are flush with the wall. e. M20139 Fig. 6. a. Separate the mounting plate from the thermostat using a coin, as shown in drywall, gently tap the anchors (provided) into each of the mounting plate screw holes. If installing in Fig 5. Fig. 7. Position...
... mounting plate is flush against the wall and none of the wires are flush with the wall. e. M20139 Fig. 6. a. Separate the mounting plate from the thermostat using a coin, as shown in drywall, gently tap the anchors (provided) into each of the mounting plate screw holes. If installing in Fig 5. Fig. 7. Position...
Owner's Manual
Page 6
...turn DIP Switch 3 to set your heating system uses: F- See the Heating System Table on the wall. You can wait until the thermostat is set to find the correct settings. Step 4. OFF 11 ON 22 33 OFF ON HEATING SYSTEM WARM AIR FURNACE HOT WATER OR ... batteries, see the Programming section. 69-1638-1 6 ON 3 - ON 2 - OFF 2 - ON F 1 - Use the FUEL SWITCH on the back of the thermostat to maintain accurate temperature control, minimize swings in degrees Fahrenheit (°F). NOTE: This setting enables proper fan operation. Use DIP switches 1 and 2 on the back...
...turn DIP Switch 3 to set your heating system uses: F- See the Heating System Table on the wall. You can wait until the thermostat is set to find the correct settings. Step 4. OFF 11 ON 22 33 OFF ON HEATING SYSTEM WARM AIR FURNACE HOT WATER OR ... batteries, see the Programming section. 69-1638-1 6 ON 3 - ON 2 - OFF 2 - ON F 1 - Use the FUEL SWITCH on the back of the thermostat to maintain accurate temperature control, minimize swings in degrees Fahrenheit (°F). NOTE: This setting enables proper fan operation. Use DIP switches 1 and 2 on the back...
Owner's Manual
Page 7
... shown in . (8 mm) STRIP M20125 INSERT STRAIGHT UNDER SCREW HEAD c. d. Securely tighten terminals. Heating System Table Type of your new thermostat. Loosen terminal screws and slip each wire beneath its matching terminal (Fig 10). END OF WIRE VISIBLE HERE M20126 7 69-1638-1 See ...1-Off; 2-On Fuel Switch F F 1-Off; 2-On F 1-On; 2-Off E Step 5. a. Using the labels on the wires, match letter of your old thermostat wire with the corresponding terminal on the back of System Warm air, gas, or oil heating system with an efficiency rating under 90%. (The furnace...
... shown in . (8 mm) STRIP M20125 INSERT STRAIGHT UNDER SCREW HEAD c. d. Securely tighten terminals. Heating System Table Type of your new thermostat. Loosen terminal screws and slip each wire beneath its matching terminal (Fig 10). END OF WIRE VISIBLE HERE M20126 7 69-1638-1 See ...1-Off; 2-On Fuel Switch F F 1-Off; 2-On F 1-On; 2-Off E Step 5. a. Using the labels on the wires, match letter of your old thermostat wire with the corresponding terminal on the back of System Warm air, gas, or oil heating system with an efficiency rating under 90%. (The furnace...
Owner's Manual
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Mount Thermostat Fig. 11. Fig. 12. e. Press the lower edge of the case to latch the bottom of the mounting plate (Fig. 11). f. Step 6. Align the tabs at the top of the thermostat with the tabs at the top of the thermostat (Fig. 12) M20130 M20131 69-1638-1 8
Mount Thermostat Fig. 11. Fig. 12. e. Press the lower edge of the case to latch the bottom of the mounting plate (Fig. 11). f. Step 6. Align the tabs at the top of the thermostat with the tabs at the top of the thermostat (Fig. 12) M20130 M20131 69-1638-1 8
Owner's Manual
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Install the batteries Fig. 13. M1719C Fig. 14. Honeywell recommends using electrical tape to your electrical circuit. c. You are oriented correctly as shown in the OFF position. As you begin to operate.... 7. REMOVING BATTERY DOOR IMPORTANT: Batteries must be insulated from the digital display. ✓ Check your new CT2800 Thermostat and must be installed for programming and operation of the new thermostat. Replace the battery door. b. d. Install the batteries. See Programming section. These wires are not used during the installation of your ...
Install the batteries Fig. 13. M1719C Fig. 14. Honeywell recommends using electrical tape to your electrical circuit. c. You are oriented correctly as shown in the OFF position. As you begin to operate.... 7. REMOVING BATTERY DOOR IMPORTANT: Batteries must be insulated from the digital display. ✓ Check your new CT2800 Thermostat and must be installed for programming and operation of the new thermostat. Replace the battery door. b. d. Install the batteries. See Programming section. These wires are not used during the installation of your ...
Owner's Manual
Page 10
... your heating contractor for heating only and can operate the fan using the fan ON switch, the CT2800 Thermostat will work with your old thermostat, do not connect to your system. Three thermostat wires If you have three wires for installation assistance. If you have a three-wire heating-only... system and cannot operate the fan using the fan ON switch, the CT2800 Thermostat will probably NOT work with the operation of purchase. Continue the installation procedure. Six or more wires If your old thermostat has six or more wires (excluding clock wires attached to the C or ...
... your heating contractor for heating only and can operate the fan using the fan ON switch, the CT2800 Thermostat will work with your old thermostat, do not connect to your system. Three thermostat wires If you have three wires for installation assistance. If you have a three-wire heating-only... system and cannot operate the fan using the fan ON switch, the CT2800 Thermostat will probably NOT work with the operation of purchase. Continue the installation procedure. Six or more wires If your old thermostat has six or more wires (excluding clock wires attached to the C or ...
Owner's Manual
Page 11
...heating/cooling system. Second stage heat (W2, H2) or second stage cooling (Y2). Old Thermostat Terminal Connect to wire the new thermostat. Description Power Power for cooling Heat Cooling Fan Changeover in cool (O terminal) or changeover in...a single-stage heat pump or zoning system. Select an alternate thermostat model. Select an alternate thermostat model. *Remove factory-installed jumper between R and Rc terminals in heat (B terminal). Old thermostat terminals that do not match new thermostat terminals Use the table below to New Thermostat Terminal R, RH, 4, V R* Rc, R Rc* ...
...heating/cooling system. Second stage heat (W2, H2) or second stage cooling (Y2). Old Thermostat Terminal Connect to wire the new thermostat. Description Power Power for cooling Heat Cooling Fan Changeover in cool (O terminal) or changeover in...a single-stage heat pump or zoning system. Select an alternate thermostat model. Select an alternate thermostat model. *Remove factory-installed jumper between R and Rc terminals in heat (B terminal). Old thermostat terminals that do not match new thermostat terminals Use the table below to New Thermostat Terminal R, RH, 4, V R* Rc, R Rc* ...
Owner's Manual
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... Program 2 Schedule Hold Temp 1 Fan Auto On System Cool Off Heat Descriptions 1 Fan switch-Selects automatic fan operation or fan on. 2 Set Schedule-Puts the thermostat into programming mode. 3 Set Clock/Day-Sets the clock and day. 4 Time Ahead and Back-Sets the time 9 ahead and back. 10 5 Program periods-Current... System switch-Selects Cool, Off, Heat. 69-1638-1 12 M20664 11 Temp Warmer and Cooler-Sets the temperature warmer and cooler. 12 Run Program-Returns thermostat to the program.
... Program 2 Schedule Hold Temp 1 Fan Auto On System Cool Off Heat Descriptions 1 Fan switch-Selects automatic fan operation or fan on. 2 Set Schedule-Puts the thermostat into programming mode. 3 Set Clock/Day-Sets the clock and day. 4 Time Ahead and Back-Sets the time 9 ahead and back. 10 5 Program periods-Current... System switch-Selects Cool, Off, Heat. 69-1638-1 12 M20664 11 Temp Warmer and Cooler-Sets the temperature warmer and cooler. 12 Run Program-Returns thermostat to the program.
Owner's Manual
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... higher. Press Clock/Day again. Press Program once. Fig. 19. Press once. Fig. 17. The day is displayed (Fig. 17). Learn About Programming Features Your CT2800 Thermostat allows you to two program periods for the weekends (Saturday and Sunday). The current time and day and the current temperature are defined in the...
... higher. Press Clock/Day again. Press Program once. Fig. 19. Press once. Fig. 17. The day is displayed (Fig. 17). Learn About Programming Features Your CT2800 Thermostat allows you to two program periods for the weekends (Saturday and Sunday). The current time and day and the current temperature are defined in the...
Owner's Manual
Page 14
... any higher than 88°F (31°C) or any time during programming, press Program . RETURN The time between returning home and going to program your thermostat, it automatically controls heating at 68°F (20°C), and cooling at any lower than 45°F (7°C). • When pressing the buttons, use the...
... any higher than 88°F (31°C) or any time during programming, press Program . RETURN The time between returning home and going to program your thermostat, it automatically controls heating at 68°F (20°C), and cooling at any lower than 45°F (7°C). • When pressing the buttons, use the...
Owner's Manual
Page 18
.... The current time and day and current temperature display. 69-1638-1 18 e. This delay protects the compressor. b. Run c. Press Temp until the setting is changed, thermostat can delay up to five minutes before turning on air conditioner. g. The time is 10°F (6°C) above room temperature.Your cooling system and fan...
.... The current time and day and current temperature display. 69-1638-1 18 e. This delay protects the compressor. b. Run c. Press Temp until the setting is changed, thermostat can delay up to five minutes before turning on air conditioner. g. The time is 10°F (6°C) above room temperature.Your cooling system and fan...
Owner's Manual
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... or incorrectly installed and reprogramming is set the System switch. Set Fan and System Switches The switches on the bottom of the thermostat faceplate control the operation of your heating system. Auto is not operating. a. Use this setting for improved air circulation during special... occasions or for most homes. The thermostat controls your thermostat shows the following in the digital display: If you see: Flashing "bAt Lo" Blank display Batteries are off. Your heating/...
... or incorrectly installed and reprogramming is set the System switch. Set Fan and System Switches The switches on the bottom of the thermostat faceplate control the operation of your heating system. Auto is not operating. a. Use this setting for improved air circulation during special... occasions or for most homes. The thermostat controls your thermostat shows the following in the digital display: If you see: Flashing "bAt Lo" Blank display Batteries are off. Your heating/...
Owner's Manual
Page 20
... to temperature lasts for current program period only. If leaving home for five to ten seconds, and return batteries to lack of battery power in thermostat. Change the temperature temporarily Fig. 27. Press or until the desired temperature is set System switch to OFF, insert batteries backward, wait for longer than...
... to temperature lasts for current program period only. If leaving home for five to ten seconds, and return batteries to lack of battery power in thermostat. Change the temperature temporarily Fig. 27. Press or until the desired temperature is set System switch to OFF, insert batteries backward, wait for longer than...
Owner's Manual
Page 22
... correctly; range is 45°F to 88°F (7°C to Off. If "bAt Lo" continues to display after replacing batteries, set System switch to reset thermostat. Check program times for 5-10 seconds to OFF and insert batteries backward for programming heating schedule or programming cooling schedule. Reprogram if necessary. 69-1638...
... correctly; range is 45°F to 88°F (7°C to Off. If "bAt Lo" continues to display after replacing batteries, set System switch to reset thermostat. Check program times for 5-10 seconds to OFF and insert batteries backward for programming heating schedule or programming cooling schedule. Reprogram if necessary. 69-1638...
Owner's Manual
Page 23
...connected to check the current temperature setting. Check the system fuse or circuit breaker and replace or reset if necessary. Press RUN PROGRAM to the thermostat. 23 69-1638-1 During recovery from setback or setup, setting and displayed room temperatures can differ for heat at 1-800-468-1502. Contact ... is set to differ on the back of heating/cooling system (hot water, warm air, oil, gas, etc.). - Check that might adversely affect thermostat operation. Allow 5-10 minutes after recovery period. Before you call Honeywell Customer Care at the register. Type of the...
...connected to check the current temperature setting. Check the system fuse or circuit breaker and replace or reset if necessary. Press RUN PROGRAM to the thermostat. 23 69-1638-1 During recovery from setback or setup, setting and displayed room temperatures can differ for heat at 1-800-468-1502. Contact ... is set to differ on the back of heating/cooling system (hot water, warm air, oil, gas, etc.). - Check that might adversely affect thermostat operation. Allow 5-10 minutes after recovery period. Before you call Honeywell Customer Care at the register. Type of the...