Owner's Manual
Page 1
... 55 percent of energy cost savings TYPICAL ENERGY SAVINGS FOR REPRESENTATIVE CITIES IN THE U.S. 69-0733-3 PROGRAMMING AND INSTALLATION INSTRUCTIONS Honeywell/34 Model CT3400/CT3455 THERMOSTAT Low Voltage (20 to 30 Vac)Thermostat and Wallplate PROGRAMMABLE Programmable Heat and/or Cool Weekday/Saturday/Sunday Approximate percentage of these savings). Form Number 69-0733-3 Rev...
... 55 percent of energy cost savings TYPICAL ENERGY SAVINGS FOR REPRESENTATIVE CITIES IN THE U.S. 69-0733-3 PROGRAMMING AND INSTALLATION INSTRUCTIONS Honeywell/34 Model CT3400/CT3455 THERMOSTAT Low Voltage (20 to 30 Vac)Thermostat and Wallplate PROGRAMMABLE Programmable Heat and/or Cool Weekday/Saturday/Sunday Approximate percentage of these savings). Form Number 69-0733-3 Rev...
Owner's Manual
Page 2
...to spend a few minutes reading this control, or of a mercury switch in a sealed tube. Recycling Thermostat M3375 If this thermostat is replacing a control that : s Keeps you become familiar and comfortable with your Honeywell thermostat, the state of energy and money by the time you purchased your own. MERCURY SWITCH M3701 Fig. 1....Contact your old control in comfort and convenience. You'll find it 's your choice-use the preprogrammed schedule or set your new Honeywell Thermostat. TOTAL COMFORT TEMPERATURE MANAGEMENT WITH ADAPTIVE INTELLIGENT RECOVERY™ Congratulations!
...to spend a few minutes reading this control, or of a mercury switch in a sealed tube. Recycling Thermostat M3375 If this thermostat is replacing a control that : s Keeps you become familiar and comfortable with your Honeywell thermostat, the state of energy and money by the time you purchased your own. MERCURY SWITCH M3701 Fig. 1....Contact your old control in comfort and convenience. You'll find it 's your choice-use the preprogrammed schedule or set your new Honeywell Thermostat. TOTAL COMFORT TEMPERATURE MANAGEMENT WITH ADAPTIVE INTELLIGENT RECOVERY™ Congratulations!
Owner's Manual
Page 3
...Required 18 STEP 7 Adjust Fan Operation Switch, as Required 20 STEP 8 Wire Wallplate Terminals 21 STEP 9 Mount The Thermostat 24 STEP 10 Check Thermostat Operation After Programming and Installing 25 STEP 11 Set the Fan and System Switches 28 Troubleshooting Guide ...30 Index ...34 ...If not, return to make sure this thermostat is compatible with 3-wire zone valves or 2-wire White Rodgers no. 1361 valves. 2 69-0733-3 For more information, call Honeywell Customer Assistance, toll-free 1-800-468-1502. System Type Compatible with CT3400/3455 Gas-Standing Pilot Gas-Electronic Ignition ...
...Required 18 STEP 7 Adjust Fan Operation Switch, as Required 20 STEP 8 Wire Wallplate Terminals 21 STEP 9 Mount The Thermostat 24 STEP 10 Check Thermostat Operation After Programming and Installing 25 STEP 11 Set the Fan and System Switches 28 Troubleshooting Guide ...30 Index ...34 ...If not, return to make sure this thermostat is compatible with 3-wire zone valves or 2-wire White Rodgers no. 1361 valves. 2 69-0733-3 For more information, call Honeywell Customer Assistance, toll-free 1-800-468-1502. System Type Compatible with CT3400/3455 Gas-Standing Pilot Gas-Electronic Ignition ...
Owner's Manual
Page 4
...wires, they do not operate the cooling system when outdoor temperature is below ). save package of screws, instructions and receipt. s Loosen screws holding thermostat to the C or C1 clock terminals on the cover. If it with the old terminal designation. If there are working properly. To avoid ...to system at the furnace, or at the fuse/circuit breaker panel. s Acquire tools and items as shown. If you are replacing a Honeywell Chronotherm® Thermostat, you disconnect each wire, use masking tape to label it does not snap off power to keep them from old...
...wires, they do not operate the cooling system when outdoor temperature is below ). save package of screws, instructions and receipt. s Loosen screws holding thermostat to the C or C1 clock terminals on the cover. If it with the old terminal designation. If there are working properly. To avoid ...to system at the furnace, or at the fuse/circuit breaker panel. s Acquire tools and items as shown. If you are replacing a Honeywell Chronotherm® Thermostat, you disconnect each wire, use masking tape to label it does not snap off power to keep them from old...
Owner's Manual
Page 5
... run out completely. In this thermostat will not work with your system, call Honeywell Customer Assistance at 1-800-468-1502. Record the colors and terminal designation labels of the thermostat as possible after the indicator starts flashing. The thermostat will work without installing an isolating...) heating systems have to reprogram. As the batteries are included with the operation of the new thermostat. s Install the batteries in chart on these systems. For details, call Honeywell Customer Assistance at 1-800-468-1502. 5 69-0733-3 STEP 3 Before You Program Install the...
... run out completely. In this thermostat will not work with your system, call Honeywell Customer Assistance at 1-800-468-1502. Record the colors and terminal designation labels of the thermostat as possible after the indicator starts flashing. The thermostat will work without installing an isolating...) heating systems have to reprogram. As the batteries are included with the operation of the new thermostat. s Install the batteries in chart on these systems. For details, call Honeywell Customer Assistance at 1-800-468-1502. 5 69-0733-3 STEP 3 Before You Program Install the...
Owner's Manual
Page 6
...to save energy by avoiding overshooting the comfort temperature. NOTE: If you choose conventional recovery, adjust screw 3A (on to the thermostat or the wall surface. The best starting time varies as the seasons change batteries before reaching your lifestyle, home construction and ... no longer using the Adap- Each day it checks how closely it hit the target and adjusts the recovery start recovery; INDICATES THERMOSTAT IS SET FOR CONVENTIONAL RECOVERY mostat display as long, and may leak, causing damage to start time accordingly. tive Intelligent Recovery™...
...to save energy by avoiding overshooting the comfort temperature. NOTE: If you choose conventional recovery, adjust screw 3A (on to the thermostat or the wall surface. The best starting time varies as the seasons change batteries before reaching your lifestyle, home construction and ... no longer using the Adap- Each day it checks how closely it hit the target and adjusts the recovery start recovery; INDICATES THERMOSTAT IS SET FOR CONVENTIONAL RECOVERY mostat display as long, and may leak, causing damage to start time accordingly. tive Intelligent Recovery™...
Owner's Manual
Page 7
... is installed on the wall, skip to page 16, and return later to program the thermostat after it (see page 15), as you desire for weekdays, Saturday, Sunday. The thermostat requires a time and temperature program for various times of time and temperature settings for the MORNING period. If ...-saving temperature while you are away at work or school. (This will probably be different for each. STEP 4 Program The Thermostat After the batteries are installed, the thermostat can be easily programmed in your hand before bedtime. (Again, higher heat or lower cool.) NIGHT is the time period you...
... is installed on the wall, skip to page 16, and return later to program the thermostat after it (see page 15), as you desire for weekdays, Saturday, Sunday. The thermostat requires a time and temperature program for various times of time and temperature settings for the MORNING period. If ...-saving temperature while you are away at work or school. (This will probably be different for each. STEP 4 Program The Thermostat After the batteries are installed, the thermostat can be easily programmed in your hand before bedtime. (Again, higher heat or lower cool.) NIGHT is the time period you...
Owner's Manual
Page 9
... SAT. use a Time and Temp to move number back; For Sunday, press Day to program Mon-Fri MORNING time and temperature. When programming your new thermostat, use this guide. Repeat using DAYTIME, EVENING, NIGHT keys. With system switch at HEAT, press and release Morning . For Saturday, press Day program to SUN...
... SAT. use a Time and Temp to move number back; For Sunday, press Day to program Mon-Fri MORNING time and temperature. When programming your new thermostat, use this guide. Repeat using DAYTIME, EVENING, NIGHT keys. With system switch at HEAT, press and release Morning . For Saturday, press Day program to SUN...
Owner's Manual
Page 10
... Change a program-Repeat steps under Heating Program (page 13) or Cooling Program (page 14), as on to move number ahead. 15 69-0733-3 STEP 5 Mount Thermostat Wallplate s Position wallplate on wall. Return to cancel, press Run . WALL WIRES THROUGH WALL OPENING WALL ANCHORS (2) MOUNTING HOLES (3) 1 WALLPLATE MOUNTING SCREWS (2) 1 USE THE TWO...
... Change a program-Repeat steps under Heating Program (page 13) or Cooling Program (page 14), as on to move number ahead. 15 69-0733-3 STEP 5 Mount Thermostat Wallplate s Position wallplate on wall. Return to cancel, press Run . WALL WIRES THROUGH WALL OPENING WALL ANCHORS (2) MOUNTING HOLES (3) 1 WALLPLATE MOUNTING SCREWS (2) 1 USE THE TWO...
Owner's Manual
Page 11
... wallplate over holes, pulling wires through wiring opening. LEVEL M611B 17 69-0733-3 STEP 6 Adjust System On-Time, Clock Display, As Required s The thermostat on -time, readjust screws 1A and/or 1B as a guide. First, turn both screws in completely, then adjust for system type: • Hot...For firmer material such as marked. In the unlikely event that you are installing it on the back of the thermostat, using the heating system table in , 1B- thermostat functions properly even when not level. The system on-time should be adjusted accordingly by setting screws 1A and 1B...
... wallplate over holes, pulling wires through wiring opening. LEVEL M611B 17 69-0733-3 STEP 6 Adjust System On-Time, Clock Display, As Required s The thermostat on -time, readjust screws 1A and/or 1B as a guide. First, turn both screws in completely, then adjust for system type: • Hot...For firmer material such as marked. In the unlikely event that you are installing it on the back of the thermostat, using the heating system table in , 1B- thermostat functions properly even when not level. The system on-time should be adjusted accordingly by setting screws 1A and 1B...
Owner's Manual
Page 12
...are installed, or the left (NON ELEC) position. FAN OPERATION SWITCH (SHOWN IN NON ELEC POSITION) M619C 20 69-0733-3 INSTALLATION s The thermostat is an electric furnace, set the switch to access the switch. This is the correct setting for most systems. If your system is set ... removed to the right (ELEC) position. s For an explanation of the Recovery Selection screws (3A), see pages 7 and 8. 19 BACK OF THERMOSTAT RECOVERY SELECTION 3A ADAPTIVE IN INTELLIGENT TM (FACTORY SETTING) CONVENTIONAL OUT 1 TURN 3A 1A 1B 2A 2B SYSTEM GRAVITY AIR/WATER HOT WATER OR HIGH...
...are installed, or the left (NON ELEC) position. FAN OPERATION SWITCH (SHOWN IN NON ELEC POSITION) M619C 20 69-0733-3 INSTALLATION s The thermostat is an electric furnace, set the switch to access the switch. This is the correct setting for most systems. If your system is set ... removed to the right (ELEC) position. s For an explanation of the Recovery Selection screws (3A), see pages 7 and 8. 19 BACK OF THERMOSTAT RECOVERY SELECTION 3A ADAPTIVE IN INTELLIGENT TM (FACTORY SETTING) CONVENTIONAL OUT 1 TURN 3A 1A 1B 2A 2B SYSTEM GRAVITY AIR/WATER HOT WATER OR HIGH...
Owner's Manual
Page 13
... DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. M614A 22 69-0733-3 INSTALLATION Refer to masking tape labels you removed your old thermostat. move the factory-installed jumper connect- PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. STEP 8 Wire Wallplate Terminals NOTE: ...All wiring must comply with insulation to help prevent drafts from adversely affecting thermostat operation. s Match the letter of your old thermostat wire with the terminal of the corresponding letter on wires when you placed on your local heating/air...
... DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. M614A 22 69-0733-3 INSTALLATION Refer to masking tape labels you removed your old thermostat. move the factory-installed jumper connect- PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. STEP 8 Wire Wallplate Terminals NOTE: ...All wiring must comply with insulation to help prevent drafts from adversely affecting thermostat operation. s Match the letter of your old thermostat wire with the terminal of the corresponding letter on wires when you placed on your local heating/air...
Owner's Manual
Page 14
.... PRESS LOWER EDGE OF CASE TO LATCH M5143 69-0733-3 INSTALLATION 3-WIRE HEAT ONLY (JUMPER INTACT) W G R RC Y THERMOSTAT 5-WIRE HEAT/COOL (JUMPER REMOVED) W G R RC Y THERMOSTAT HEATING RELAY OR VALVE COIL FAN RELAY 1 1 POWER SUPPLY. M613A HEATING RELAY OR VALVE COIL FAN RELAY COOLING CONTACTOR COIL 1... 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 1 M 615A 23 69-0733-3 STEP 9 Mount The Thermostat AM MON DAYTIME HEAT ON A. SWING COVER OPEN FOR CHECKOUT AND PROGRAMMING AM MON DAYTIME HEAT ON Set Present Day Time Hold Temp Day...
.... PRESS LOWER EDGE OF CASE TO LATCH M5143 69-0733-3 INSTALLATION 3-WIRE HEAT ONLY (JUMPER INTACT) W G R RC Y THERMOSTAT 5-WIRE HEAT/COOL (JUMPER REMOVED) W G R RC Y THERMOSTAT HEATING RELAY OR VALVE COIL FAN RELAY 1 1 POWER SUPPLY. M613A HEATING RELAY OR VALVE COIL FAN RELAY COOLING CONTACTOR COIL 1... 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 1 M 615A 23 69-0733-3 STEP 9 Mount The Thermostat AM MON DAYTIME HEAT ON A. SWING COVER OPEN FOR CHECKOUT AND PROGRAMMING AM MON DAYTIME HEAT ON Set Present Day Time Hold Temp Day...
Owner's Manual
Page 15
... fan should shut off. In- HEAT FAN M2472 OFF COOL ON AUTO Press down arrow of key until the setting is changed, thermostat may delay up arrow of key until the setting is Temp about 10°F (6°C ) below room temperature. The cooling equipment...50°F (10°C). FAN ON AUTO This will damage the thermostat. STEP 10 Check Thermostat Operation After Programming And Installing HEATING HEAT OFF COOL Do not check heating system operation by jumpering thermostat terminals at the thermostat. Heating should start and the fan should start. Move the system...
... fan should shut off. In- HEAT FAN M2472 OFF COOL ON AUTO Press down arrow of key until the setting is changed, thermostat may delay up arrow of key until the setting is Temp about 10°F (6°C ) below room temperature. The cooling equipment...50°F (10°C). FAN ON AUTO This will damage the thermostat. STEP 10 Check Thermostat Operation After Programming And Installing HEATING HEAT OFF COOL Do not check heating system operation by jumpering thermostat terminals at the thermostat. Heating should start and the fan should start. Move the system...
Owner's Manual
Page 16
... operates with furnace only. The fan should run continuously. FAN ON: The fan runs continuously. Exception: If fan operation switch on back of thermostat is connected to the thermostat.) FAN AUTO: Normal setting for more efficient electronic air cleaning. (In a heat-only system, fan runs continuously only if fan relay is set...
... operates with furnace only. The fan should run continuously. FAN ON: The fan runs continuously. Exception: If fan operation switch on back of thermostat is connected to the thermostat.) FAN AUTO: Normal setting for more efficient electronic air cleaning. (In a heat-only system, fan runs continuously only if fan relay is set...
Owner's Manual
Page 17
... use anything abrasive on . Reprogram if necessary. ward for at the wrong times. HEAT OFF COOL COOL: The thermostat controls your heating system. Temperature change occurs at least five seconds to reset thermostat. HEAT: The thermostat controls your air conditioning system. HEAT OFF COOL 29 69-0733-3 Troubleshooting Guide IF... s Set the system... the program times for Adaptive Intelligent Recovery™, the start times will occur before your programmed comfort periods. 30 69-0733-3 s If you left the thermostat set the system switch.
... use anything abrasive on . Reprogram if necessary. ward for at the wrong times. HEAT OFF COOL COOL: The thermostat controls your heating system. Temperature change occurs at least five seconds to reset thermostat. HEAT: The thermostat controls your air conditioning system. HEAT OFF COOL 29 69-0733-3 Troubleshooting Guide IF... s Set the system... the program times for Adaptive Intelligent Recovery™, the start times will occur before your programmed comfort periods. 30 69-0733-3 s If you left the thermostat set the system switch.
Owner's Manual
Page 18
... circuit breaker and replace or reset if necessary. If cooling does not come on, contact your air conditioner does not come on thermostat is set to check the current temperature setting. Cooling does not come on cooling. s Check the system fuse or circuit breaker.... s Press CURRENT SETTING to HEAT. s Jumper wires R and W. Heating does not come on ). s Check that R-Rc jumper is displayed, contact Honeywell Customer Assistance at 1-800-468-1502. s Check for correct wiring and good connections. s If desired, change the temperature setting. s If temperature setting is...
... circuit breaker and replace or reset if necessary. If cooling does not come on, contact your air conditioner does not come on thermostat is set to check the current temperature setting. Cooling does not come on cooling. s Check the system fuse or circuit breaker.... s Press CURRENT SETTING to HEAT. s Jumper wires R and W. Heating does not come on ). s Check that R-Rc jumper is displayed, contact Honeywell Customer Assistance at 1-800-468-1502. s Check for correct wiring and good connections. s If desired, change the temperature setting. s If temperature setting is...
Owner's Manual
Page 19
... control, which may account for the delay. s Readjust according to instructions on thermostat insulation to differ occasionally. thermostat operation. Note that it is normal for heat at the register. The thermostat's current setting does not match the display temperature to prevent drafts that the wiring... the hole behind the wallplate has been plugged with showing on pages 18 and 19. HEAT ON is displayed, but by the thermostat, but no heat is coming from adversely affecting the display. The system cycle length is factory-calibrated and cannot be adjusted. 33...
... control, which may account for the delay. s Readjust according to instructions on thermostat insulation to differ occasionally. thermostat operation. Note that it is normal for heat at the register. The thermostat's current setting does not match the display temperature to prevent drafts that the wiring... the hole behind the wallplate has been plugged with showing on pages 18 and 19. HEAT ON is displayed, but by the thermostat, but no heat is coming from adversely affecting the display. The system cycle length is factory-calibrated and cannot be adjusted. 33...
Owner's Manual
Page 20
...Some states do not allow the exclusion or limitation of incidental or consequential damages, so this thermostat, please read and follow the instructions. In Canada, write Retail Products ON30 Honeywell Limited/Honeywell Limitee,155 Gordon Baker Road, North York, Ontario M2H 3N7. 36 69-0733-3 If ...the product is defective or malfunctions, Honeywell shall repair or replace it , postage prepaid, to the following information available-thermostat model number and date code, type of heating/cooling system (e.g., hot water, warm air, oil,...
...Some states do not allow the exclusion or limitation of incidental or consequential damages, so this thermostat, please read and follow the instructions. In Canada, write Retail Products ON30 Honeywell Limited/Honeywell Limitee,155 Gordon Baker Road, North York, Ontario M2H 3N7. 36 69-0733-3 If ...the product is defective or malfunctions, Honeywell shall repair or replace it , postage prepaid, to the following information available-thermostat model number and date code, type of heating/cooling system (e.g., hot water, warm air, oil,...