Honeywell CT3400 Support and Manuals

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Most Recent Honeywell CT3400 Questions

Thermostat Issues
How do I take off temporary on a honeywellThermostat CT3400
(Posted by jburton698 2 years ago)
Ct3400 Equivalent
is there a honeywell ct3400 equivalent.Thank, Paul @home depot 4653
(Posted by prodesk4653 3 years ago)
Thermostat Will Not Trigger Heat After Replacing Batteries
My thermostat batteries died while away. I replaced them and it appears to be working but no matter ...
(Posted by rfeldman5 7 years ago)
Blank Screen But Fan On Works
I came upstairs to find the floor very warm and humid. I went to the thermostat and the screen was b...
(Posted by tkhand 8 years ago)
Thermostat Needed Battery, Replaced, Does Not Work
replaced batteries, will no let us program it
(Posted by dsilkworth 9 years ago)

Popular Honeywell CT3400 Manual Pages

Owner's Manual - Page 1

... cost savings TYPICAL ENERGY SAVINGS FOR REPRESENTATIVE CITIES IN THE U.S. Rev. 4-97 ©Honeywell Inc. 1997 Printed in U.S.A. 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

...for instructions regarding recycling and the proper disposal of energy and money by the time you to sleep. s Saves the maximum amount of this manual....Honeywell Thermostat. You made a smart choice when you leave home or go on to have questions, call Honeywell Inc. It's the smart thermostat that contains mercury in the trash. Recycling Thermostat M3375 If this thermostat is replacing...
Owner's Manual - Page 3

... 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-Year Warranty ...36 1 69-0733-3 STEP 1 Prepare For Installation s Check Table 1 to retailer. For more information, call Honeywell Customer Assistance, toll-free 1-800...
Owner's Manual - Page 4

..., instructions and receipt. If it with the old terminal designation. s Loosen screws holding thermostat to make certain that your heating and cooling systems are working properly. If you are only two wires, they do not operate the cooling system when outdoor temperature is below ). s Disconnect wires from the old thermostat. If there are replacing a Honeywell...
Owner's Manual - Page 5

... them to touch, or you would like information about which programmable thermostats will work with your system, call Honeywell Customer Assistance at 1-800-468-1502. Disconnect the wires and wrap them together. The thermostat is blank, the batteries are dead or incorrectly installed. In this thermostat will work with such systems so return the product to...
Owner's Manual - Page 6

... temperature gradually and turns the equipment on your home gradually reaches the comfort temperature you set at the factory-set Adaptive Intelligent Recovery™ setting, or adjust it to turn . We recommend Energizer® batteries. IMPORTANT: Although the thermostat has a low battery indicator, replace the batteries once a year to prevent leakage and to prevent the...
Owner's Manual - Page 11

...setting screws 1A and 1B on another type of the thermostat, using the heating system table in the illustration as follows: 18 69-0733-3 INSTALLATION In the unlikely event that you are installing... Required s The thermostat on -time, readjust screws 1A and/or 1B as a guide. out one complete turn ). • Electric Warm Air-Leave at the Hot Water or High Efficiency setting (1A-leave in...
Owner's Manual - Page 12

... removed to a fan relay. s The thermostat is connected to access the switch. FAN OPERATION SWITCH (SHOWN IN NON ELEC POSITION) M619C 20 69-0733-3 INSTALLATION This is the correct setting for most systems. If your system is factory-set the switch to turn . IMPORTANT: When using the illustration as a guide. The ELEC position allows the...
Owner's Manual - Page 14

... Morning Run Program Night On Auto Fan Daytime Current Setting Temp Evening Time Heat On Cool 24 B. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. M613A HEATING RELAY OR VALVE COIL FAN RELAY COOLING CONTACTOR COIL 1 1 POWER SUPPLY. ENGAGE TABS BETWEEN TOP OF THERMOSTAT AND WALLPLATE C. 3-WIRE HEAT ONLY (JUMPER INTACT) W G R RC...
Owner's Manual - Page 15

... See compressor manufacturer instructions for further information. NOTE: When cooling setting is changed, thermostat may delay up arrow of key until the setting is about 10&#...setting is Temp about 10°F (6°C) below room temperature. In- This delay protects the compressor. Heating should start . STEP 10 Check Thermostat Operation After Programming And Installing...
Owner's Manual - Page 16

...usually runs on high with the air conditioner and on back of thermostat is connected to ON. Use for improved air circulation during special ...set to the ELEC (right) position (see page 20), fan operates with the furnace. FAN ON AUTO FAN ON AUTO 28 69-0733-3 HEAT OFF COOL FAN ON AUTO Move the system switch to OFF and the fan switch to the thermostat.) FAN AUTO: Normal setting...
Owner's Manual - Page 17

... 29 69-0733-3 Troubleshooting Guide IF... s Gently clean battery contacts using a soft pencil eraser. s You have reached the temperature setting limit. Temperature change occurs at least five seconds to 31°C). Make sure the current day and time are off. HEAT OFF COOL COOL: The thermostat controls your air conditioning system. Replace batteries correctly. Reprogram...
Owner's Manual - Page 18

... is blank or displays REPL BAT, install fresh batteries. s Check that switch on thermostat is blank or displays REPL BAT, install fresh batteries. If display is installed. s If temperature setting is higher than current temperature, and COOL is set to ten minutes after ten minutes and COOL is displayed, contact Honeywell Customer Assistance at 1-800-468-1502...
Owner's Manual - Page 19

...,11,12 Troubleshooting ..... 30,31,32,33 Warranty 36 Weekday program 9,10,11,13,14 34 69-0733-3 s Be aware 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 it is normal for the current setting and display temperature...
Owner's Manual - Page 20

...Honeywell shall repair or replace it is a Class B digital apparatus, which complies with a bill of sale or other dated proof of purchase, to the thermostat. in the possession of incidental or consequential damages, so this thermostat, please read and follow the instructions...This warranty gives you specific legal rights, and ...information available-thermostat model number and date code, type of...

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  • Owner's Manual

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