Owner's Manual
Page 1
Rev. 4-97 ©Honeywell Inc. 1997 Printed in U.S.A. San Diego M2416A J.S. Paul Montreal Ottawa Toronto Edmonton Regina Winnipeg Calgary Moncton North Bay Quebec St. Louis Columbus New ... Milwaukee Denver Des Moines Omaha Salt Lake City Boston Chicago Detroit Pittsburgh Indianapolis Cincinnati Kansas City St. 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).
Rev. 4-97 ©Honeywell Inc. 1997 Printed in U.S.A. San Diego M2416A J.S. Paul Montreal Ottawa Toronto Edmonton Regina Winnipeg Calgary Moncton North Bay Quebec St. Louis Columbus New ... Milwaukee Denver Des Moines Omaha Salt Lake City Boston Chicago Detroit Pittsburgh Indianapolis Cincinnati Kansas City St. 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).
Owner's Manual
Page 2
...home comfort controls. s Saves the maximum amount of energy and money by the time you become familiar and comfortable with your Honeywell thermostat, the state of the questions that will arise as you wake up or return home. We invite you leave home or ...this control, or of a mercury switch in a sealed tube. Recycling Thermostat M3375 If this manual. Contact your own. It's the smart thermostat that contains mercury in a sealed tube, do not place your new Honeywell Thermostat. TOTAL COMFORT TEMPERATURE MANAGEMENT WITH ADAPTIVE INTELLIGENT RECOVERY™ Congratulations! If...
...home comfort controls. s Saves the maximum amount of energy and money by the time you become familiar and comfortable with your Honeywell thermostat, the state of the questions that will arise as you wake up or return home. We invite you leave home or ...this control, or of a mercury switch in a sealed tube. Recycling Thermostat M3375 If this manual. Contact your own. It's the smart thermostat that contains mercury in a sealed tube, do not place your new Honeywell Thermostat. TOTAL COMFORT TEMPERATURE MANAGEMENT WITH ADAPTIVE INTELLIGENT RECOVERY™ Congratulations! If...
Owner's Manual
Page 3
... Assistance, toll-free 1-800-468-1502. Table 1. Not compatible with 2-wire Honeywell and Taco zone valves. System Type Compatible with CT3400/3455 Gas-Standing Pilot Gas-Electronic Ignition Gas-Fired Boilers Gas-Millivolt Oil-Fired Boilers Oil-Fired Furnace Electric Furnace Electric ..., as 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 Limited One-...
... Assistance, toll-free 1-800-468-1502. Table 1. Not compatible with 2-wire Honeywell and Taco zone valves. System Type Compatible with CT3400/3455 Gas-Standing Pilot Gas-Electronic Ignition Gas-Fired Boilers Gas-Millivolt Oil-Fired Boilers Oil-Fired Furnace Electric Furnace Electric ..., as 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 Limited One-...
Owner's Manual
Page 4
...(below 50°F (10°C). WALL OPENING Wrap wires around pencil to subbase, wallplate or wall, and lift away. s Loosen screws holding thermostat to keep them from the bottom, check for a screw used to system at the furnace, or at the fuse/circuit breaker panel. As you ...may find one or two wires that go to make certain that has C or C1 clock terminals? If there are replacing a Honeywell Chronotherm® Thermostat, you disconnect each wire, use masking tape to be labeled. s Acquire tools and items as shown. CROSS-RECESSED SCREWDRIVER HAND OR POWER...
...(below 50°F (10°C). WALL OPENING Wrap wires around pencil to subbase, wallplate or wall, and lift away. s Loosen screws holding thermostat to keep them from the bottom, check for a screw used to system at the furnace, or at the fuse/circuit breaker panel. As you ...may find one or two wires that go to make certain that has C or C1 clock terminals? If there are replacing a Honeywell Chronotherm® Thermostat, you disconnect each wire, use masking tape to be labeled. s Acquire tools and items as shown. CROSS-RECESSED SCREWDRIVER HAND OR POWER...
Owner's Manual
Page 5
... Assistance at 1-800-468-1502. However, if the display is not compatible with the thermostat. If you have three thermostat wires. 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 Batteries IMPORTANT: Three AA alkaline batteries...
... Assistance at 1-800-468-1502. However, if the display is not compatible with the thermostat. If you have three thermostat wires. 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 Batteries IMPORTANT: Three AA alkaline batteries...
Owner's Manual
Page 6
...longer than the desired comfort time. NOTE: If you want the comfort temperature established. As a precaution when leaving home for the thermostat to adjust to save energy by avoiding overshooting the comfort temperature. M2483 minder that you leave to prevent system from shutting down ...or adjust it hit the target and adjusts the recovery start of the wall and (3) when you should program the start recovery; INDICATES THERMOSTAT IS SET FOR CONVENTIONAL RECOVERY mostat display as long, and may leak, causing damage to achieve maximum energy savings and comfort. 7 69...
...longer than the desired comfort time. NOTE: If you want the comfort temperature established. As a precaution when leaving home for the thermostat to adjust to save energy by avoiding overshooting the comfort temperature. M2483 minder that you leave to prevent system from shutting down ...or adjust it hit the target and adjusts the recovery start of the wall and (3) when you should program the start recovery; INDICATES THERMOSTAT IS SET FOR CONVENTIONAL RECOVERY mostat display as long, and may leak, causing damage to achieve maximum energy savings and comfort. 7 69...
Owner's Manual
Page 7
...Saturday, and another for Sunday, because your requirements will be easily programmed in the times and temperatures you would prefer to program the thermostat after it (see page 15), as you left off. MORNING is the time period you want the house at a comfortable temperature...automatically controls to these settings. PROGRAMMING 10 69-0733-3 Each period has its own setting key. STEP 4 Program The Thermostat After the batteries are installed, the thermostat can be a lower temperature during heating season, or a higher temperature during cooling season.) EVENING is the time period...
...Saturday, and another for Sunday, because your requirements will be easily programmed in the times and temperatures you would prefer to program the thermostat after it (see page 15), as you left off. MORNING is the time period you want the house at a comfortable temperature...automatically controls to these settings. PROGRAMMING 10 69-0733-3 Each period has its own setting key. STEP 4 Program The Thermostat After the batteries are installed, the thermostat can be a lower temperature during heating season, or a higher temperature during cooling season.) EVENING is the time period...
Owner's Manual
Page 9
... keys. Repeat using DAYTIME, EVENING, NIGHT keys. After programming, adjust fan and system switches as you did for programming and operation. When programming your new thermostat, use a Time and Temp to program Saturday morning time and temperature. use this guide. use Temp a to Saturday morning temperature.
... keys. Repeat using DAYTIME, EVENING, NIGHT keys. After programming, adjust fan and system switches as you did for programming and operation. When programming your new thermostat, use a Time and Temp to program Saturday morning time and temperature. use this guide. use Temp a to Saturday morning temperature.
Owner's Manual
Page 10
... Change temperature for appearance only. Cancel a program-Press and hold Daytime , or Evening Night three seconds to move number ahead. 15 69-0733-3 STEP 5 Mount Thermostat Wallplate s Position wallplate on to cancel, press Run . a Press on vacation)-
... Change temperature for appearance only. Cancel a program-Press and hold Daytime , or Evening Night three seconds to move number ahead. 15 69-0733-3 STEP 5 Mount Thermostat Wallplate s Position wallplate on to cancel, press Run . a Press on vacation)-
Owner's Manual
Page 11
... 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 another type of the thermostat, using the heating system table in ). Tighten mounting screws. out one turn). • Electric Warm Air-Leave at the Hot Water or High...
... 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 another type of the thermostat, using the heating system table in ). Tighten mounting screws. out one turn). • Electric Warm Air-Leave at the Hot Water or High...
Owner's Manual
Page 12
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 ... hr./ °C 2A 2B OUT OUT (FACTORY SETTING) IN OUT IN IN OUT IN M 618A 69-0733-3 STEP 7 Adjust Fan Operation Switch, As Required s The thermostat fan operation switch is factory-set to access the switch. This is the correct setting for most systems. If your system is an electric furnace...
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 ... hr./ °C 2A 2B OUT OUT (FACTORY SETTING) IN OUT IN IN OUT IN M 618A 69-0733-3 STEP 7 Adjust Fan Operation Switch, As Required s The thermostat fan operation switch is factory-set to access the switch. This is the correct setting for most systems. If your system is an electric furnace...
Owner's Manual
Page 13
...straight or wraparound wiring connections are acceptable (see illustration). s Plug the hole in the wall with the terminal of your old thermostat. s Loosen the terminal screws and slip each wire beneath its matching terminal. Tighten terminals. s Match the letter of the ...contractor. M2486 ing terminals R and Rc. 21 69-0733-3 2-WIRE HEAT-ONLY (JUMPER INTACT) W G R RC Y THERMOSTAT 4-WIRE HEAT/COOL (JUMPER INTACT) W G R RC Y THERMOSTAT HEATING RELAY OR VALVE COIL 1 1 POWER SUPPLY. STEP 8 Wire Wallplate Terminals NOTE: All wiring must comply with local codes ...
...straight or wraparound wiring connections are acceptable (see illustration). s Plug the hole in the wall with the terminal of your old thermostat. s Loosen the terminal screws and slip each wire beneath its matching terminal. Tighten terminals. s Match the letter of the ...contractor. M2486 ing terminals R and Rc. 21 69-0733-3 2-WIRE HEAT-ONLY (JUMPER INTACT) W G R RC Y THERMOSTAT 4-WIRE HEAT/COOL (JUMPER INTACT) W G R RC Y THERMOSTAT HEATING RELAY OR VALVE COIL 1 1 POWER SUPPLY. STEP 8 Wire Wallplate Terminals NOTE: All wiring must comply with local codes ...
Owner's Manual
Page 14
M613A HEATING RELAY OR VALVE COIL FAN RELAY COOLING CONTACTOR COIL 1 1 POWER SUPPLY. ENGAGE TABS BETWEEN TOP OF THERMOSTAT AND WALLPLATE C. SWING COVER OPEN FOR CHECKOUT AND PROGRAMMING AM MON DAYTIME HEAT ON Set Present Day Time Hold Temp Day... Cool 24 B. 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. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 1 M 615A 23 69-0733-3...
M613A HEATING RELAY OR VALVE COIL FAN RELAY COOLING CONTACTOR COIL 1 1 POWER SUPPLY. ENGAGE TABS BETWEEN TOP OF THERMOSTAT AND WALLPLATE C. SWING COVER OPEN FOR CHECKOUT AND PROGRAMMING AM MON DAYTIME HEAT ON Set Present Day Time Hold Temp Day... Cool 24 B. 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. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 1 M 615A 23 69-0733-3...
Owner's Manual
Page 15
...setting is Temp about 10°F (6°C) above room tempera- FAN ON AUTO This will damage the thermostat. Press up arrow of key until the setting is changed, thermostat may delay up to five minutes before turning on the air conditioner. NOTE: When cooling setting is about... 10°F (6°C) above room temperature. STEP 10 Check Thermostat Operation After Programming And Installing HEATING HEAT OFF COOL...
...setting is Temp about 10°F (6°C) above room tempera- FAN ON AUTO This will damage the thermostat. Press up arrow of key until the setting is changed, thermostat may delay up to five minutes before turning on the air conditioner. NOTE: When cooling setting is about... 10°F (6°C) above room temperature. STEP 10 Check Thermostat Operation After Programming And Installing HEATING HEAT OFF COOL...
Owner's Manual
Page 16
FAN ON AUTO FAN ON AUTO 28 69-0733-3 Exception: If fan operation switch on back of thermostat is set to the ELEC (right) position (see page 20), fan operates with the heating or cooling system. 27 69-0733-3 STEP 11 Set The ... System Switches First set the fan switch. HEAT OFF COOL FAN ON AUTO Move the system switch to OFF and the fan switch 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 in the AUTO...
FAN ON AUTO FAN ON AUTO 28 69-0733-3 Exception: If fan operation switch on back of thermostat is set to the ELEC (right) position (see page 20), fan operates with the heating or cooling system. 27 69-0733-3 STEP 11 Set The ... System Switches First set the fan switch. HEAT OFF COOL FAN ON AUTO Move the system switch to OFF and the fan switch 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 in the AUTO...
Owner's Manual
Page 17
... Adaptive Intelligent Recovery™, the start times will occur before your programmed comfort periods. 30 69-0733-3 HEAT OFF COOL COOL: The thermostat controls your heating system. Remove batteries. s You have reached the temperature setting limit. s Check the program times for the period in... s Make sure batteries are correct. Do not use anything abrasive on . Temperature change occurs at least five seconds to reset thermostat. Display flashes during programming. Make sure the current day and time are fresh and installed correctly. HEAT OFF COOL 29 69-0733...
... Adaptive Intelligent Recovery™, the start times will occur before your programmed comfort periods. 30 69-0733-3 HEAT OFF COOL COOL: The thermostat controls your heating system. Remove batteries. s You have reached the temperature setting limit. s Check the program times for the period in... s Make sure batteries are correct. Do not use anything abrasive on . Temperature change occurs at least five seconds to reset thermostat. Display flashes during programming. Make sure the current day and time are fresh and installed correctly. HEAT OFF COOL 29 69-0733...
Owner's Manual
Page 18
...check the current temperature setting. s If desired, change the temperature setting. Heating does not come on thermostat is set to COOL. s Check that R-Rc jumper is displayed, contact Honeywell Customer Assistance at 1-800-468-1502. s Check the system fuse or circuit breaker and replace or ...correct wiring and good connections. 31 69-0733-3 The house is displayed, contact Honeywell Customer Assistance at 1-800-468-1502. If cooling does not come on , this indicates your cooling dealer. s The thermostat has a built-in time delay on , contact your compressor may have reached ...
...check the current temperature setting. s If desired, change the temperature setting. Heating does not come on thermostat is set to COOL. s Check that R-Rc jumper is displayed, contact Honeywell Customer Assistance at 1-800-468-1502. s Check the system fuse or circuit breaker and replace or ...correct wiring and good connections. 31 69-0733-3 The house is displayed, contact Honeywell Customer Assistance at 1-800-468-1502. If cooling does not come on , this indicates your cooling dealer. s The thermostat has a built-in time delay on , contact your compressor may have reached ...
Owner's Manual
Page 19
... wallplate has been plugged with showing on most gas and oil systems, the fan is normal for heat at the register. thermostat operation. s Readjust according to instructions on before checking for the current setting and display temperature to help prevent drafts from the...coming from adversely affecting the display. Note that might adversely affect thermostat operation. s Check that the wiring hole in the wall behind the thermostat is plugged with insulation to prevent drafts that on thermostat insulation to differ occasionally. s Allow time for the furnace to...
... wallplate has been plugged with showing on most gas and oil systems, the fan is normal for heat at the register. thermostat operation. s Readjust according to instructions on before checking for the current setting and display temperature to help prevent drafts from the...coming from adversely affecting the display. Note that might adversely affect thermostat operation. s Check that the wiring hole in the wall behind the thermostat is plugged with insulation to prevent drafts that on thermostat insulation to differ occasionally. s Allow time for the furnace to...
Owner's Manual
Page 20
...with Canadian Radio Interference Regulations, CRC c.1374. 35 69-0733-3 Limited One-Year Warranty Honeywell warrants this limitation may not apply to the thermostat. THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT. Some states do not allow limitations on how long an implied ...warranty lasts, so the above . If you . to state. HONEYWELL SHALL NOT BE LIABLE FOR ANY...
...with Canadian Radio Interference Regulations, CRC c.1374. 35 69-0733-3 Limited One-Year Warranty Honeywell warrants this limitation may not apply to the thermostat. THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT. Some states do not allow limitations on how long an implied ...warranty lasts, so the above . If you . to state. HONEYWELL SHALL NOT BE LIABLE FOR ANY...