Honeywell CT3550 Owner'S Manual Download

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Printed in U.S.A. on recycled
paper containing at least 10%
post-consumer paper fibers.

69-1284—2 J.H. Rev. 04-01

www.honeywell.com/yourhome

Home and Building Control Home and Building Control

Honeywell

Honeywell Limited-Honeywell Limitée

1985 Douglas Drive North

35 Dynamic Drive

Golden Valley, MN 55422

Scarborough, Ontario
M1V 4Z9

Summary of Contents for CT3550

Page 1: ...añol llame al 1 800 468 1502 Pour obtenir ce ode demploi en français composer le 1 800 468 1502 Table of Contents Step 1 Prepare for Installation 5 Step 2 Remove Old Thermostat 6 Step 3 Mount Thermostat Wallplate 7 Step 4 Wire Wallplate Terminals 8 Step 5 Install the Batteries 9 Step 6 Mount the Thermostat 10 Step 7 Customize Your Thermostat 11 Step 8 Set the Clock 13 Step 9 Programming 13 Step 10...

Page 2: ... can use the preprogrammed schedule or set your own This manual answers many of the questions that can arise as you become familiar and comfortable with your Honeywell thermostat the state of the art in home comfort controls Read these instructions carefully Failure to follow these instructions can damage the product or cause a hazardous condition MERCURY NOTICE If this thermostat is replacing a c...

Page 3: ...VE RETURN SLEEP ENTERS PROGRAMMING MODE FAN KEY SELECTS AUTO ON SYSTEM KEY SELECTS HEAT OFF COOL DIGITAL DISPLAY SET CURRENT DAY TIME SETS CURRENT TIME AND DAY RUN PROGRAM RETURNS THERMOSTAT TO NORMAL OPERATING MODE HEAT COOL SETTING SWITCHES BETWEEN HEAT SETPOINTS AND COOL SETPOINTS WHILE PROGRAMMING TIME TIME SETS TIME FORWARD OR BACK DAY SETS DAY OF THE WEEK HOLD TEMP SETS A HOLD TEMPERATURE SE...

Page 4: ...THE CURRENT ROOM TEMPERATURE SHOWS THE BATTERIES ARE LOW AND MUST BE REPLACED DISPLAYS EITHER ROOM OR SET TEMPERATURES SHOWS CURRENT FAN KEY POSITION ON AUTO SHOWS THERMOSTAT IS CALLING FOR THE FAN SHOWS SMART RESPONSE IS OFF CONVENTIONAL RECOVERY IS ON SHOWS THERMOSTAT IS PROCESSING INFORMATION AND WAITING TO CALL FOR HEAT OR COOL SHOWS SMART RESPONSE IS CHANGING THE TEMPERATURE TO MEET THE CURRE...

Page 5: ... White Rodgers no 1361 zone valves b Not compatible with any 120 240 volt system Package Contents Thermostat Wallplate Screws and anchors Wiring labels 3 Energizer AA batteries Owners manual Tools Required Screwdriver Drill System Type Compatibility with CT3550 Gas Standing Pilot Yes Gas Electronic Ignition Yes Gas fired Boilers Yesa Gas 750 Millivolt Heat Yes Oil Fired Boilers Yesa Oil Fired Furn...

Page 6: ...allations Read this section if you are replacing Clock thermostat with separate wires for the clock Thermostat with six or more wires connected to it Thermostat in a heating only system with three wires Replacing a Clock Thermostat that has C or C1 Clock Terminals If you are replacing a Honeywell Chronotherm Thermostat you may find one or two wires going to the C or C1 clock terminals on the Chron...

Page 7: ...llplate up and away from the thermostat See illustration at right Position the wallplate on the wall Level the wallplate for appearance if desired Use a pencil to mark the two mounting holes that best fit the application Remove the wallplate from the wall Drill two 3 16 in holes in wall if drywall as shown For materials such as plaster or wood drill 7 32 in holes where marked Gently tap the provid...

Page 8: ...r on your new thermostat Refer to Table 2 Remove the factory installed jumper connecting terminals R and RC if wires are connected to both of those terminals For wiring diagrams if needed see pp 21 22 Loosen the terminal screws Slip each wire beneath its matching terminal Wraparound and straight connections are both acceptable see illustration Tighten the terminals Plug the hole in the wall with i...

Page 9: ...at Batteries must be installed for programming and operation of the thermostat and the heating cooling system Install the batteries in the wallplate so the positive terminals all point up see illustration Terminal on Old Thermostat Connect To Description R RHa 4 V R Power Rc Ra Rc Power for cooling W W1 H W Heat Y Y1 M Y Cooling G F G Fan O O Changeover in cool Single stage heat pump only Bb Bb Ch...

Page 10: ...ery power in the thermostat If you insert new batteries within 20 to 30 seconds of removing the old batteries the system retains the current time and day If the display is blank the batteries are dead or installed incorrectly You must reset the time and day Refer to Set the Clock for instructions As a precaution when leaving home for longer than a month change batteries before leaving to prevent t...

Page 11: ...ltaneously until the screen shows You now can change any of these settings Fan Operation Feature Number 2 Fan operation options are 0 Gas or oil furnace Furnace controls fan operation during heating preset 1 Electric furnace or single stage heat pump Thermostat controls fan operation during heating To change fan operation Press once Press Time to move to next feature or to return to main display S...

Page 12: ... once Press Time to move to next feature or to return to main display NOTE See Smart Response technology page 20 for information about this feature Temperature Format Feature Number 14 Temperature format options are 0 F preset 1 C To change temperature format Press once Press Time to move to next feature or to return to main display Time Format Feature Number 16 Time format options are 0 12 hour c...

Page 13: ...The program period when you want the house at a comfortable temperature when you get up and while you get ready for work or school This is a higher temperature during the heating season and a lower temperature during the cooling season The program period you can set for an energy saving temperature while you are away at work or school This is a lower temperature during the heating season and a hig...

Page 14: ...C Program Weekdays Start by programming the wake time and temperature for weekdays Press and release Press until the Mon Fri displays Press Time or key until the desired time shows in the display NOTE Program times are in 15 minute intervals For example 8 00 8 15 8 30 Period Default Setting Weekday Mon Fri Saturday Sat Sunday Sun Wake Time 6 00AM Heata 70 F 21 C Coolb 78 F 25 5 C Leave Time 8 00AM...

Page 15: ...ly in the program periods Press or and repeat these steps for each time period Your weekday is now programmed Program Saturday and Sunday Repeat each step in Program Weekdays for Saturday and Sunday Press when the entire week is programmed Clear a Program Period NOTE Wake cannot be cleared Press or for the program period you want to clear Press until the desired day displays Mon Fri Sat Sun Press ...

Page 16: ...ss then or to change your setting if desired The display changes from showing the setpoint temperature to room temperature after approximately three seconds To cancel Hold press Change the Temperature Setting Until a Designated Day and Period Vacation Hold Press twice Press or until the display shows the desired temperature setpoint Press time until the desired number of days that you will be away...

Page 17: ...for most homes The equipment controls the fan operation Press until display shows Auto NOTE If you set the fan to On during normal operation the fan reverts to the programmed fan setting when the next program period begins Set the System Key Heat The thermostat controls your heating system Press until display shows Heat Off Both the heating and air conditioning systems are off Press until the disp...

Page 18: ...e system to respond Set the system key to Heat Cooling does not come on Make sure the cooling setpoint is below the room temperature Make sure the circuit breaker is not tripped and reset it if necessary Make sure the system switch at the air conditioner is in the On position and set it to On if it is in the Off position Wait five minutes for the system to respond Set the system key to Cool System...

Page 19: ...r Located on back of thermostat Thermostat date code Located below model number Type of heating cooling system for example hot water warm air oil or gas Location and number of wires connected to the thermostat Temperature change occurs at the wrong times 1 Check the program times for the period in question 2 Make sure the AM and PM settings are correct 3 Make sure the current time and day settings...

Page 20: ...cordingly It takes a few days after installation for the thermostat to adjust to the local weather your lifestyle the construction of your home and your heating cooling system You can turn off Smart Response technology by selecting Conventional Recovery See Step 7 Customize Your Thermostat System Operating in Energy Savings Mode Recovery Begins Recovery Continues System Operating in Comfort Mode E...

Page 21: ...G CONTACTOR COIL FAN RELAY B R RC O W Y G M10618 THERMOSTAT 1 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED 1 3 WIRE HEAT ONLY WITH FAN JUMPER INTACT HEATING RELAY OR VALVE COIL FAN RELAY B R RC O W Y G M12739 THERMOSTAT 4 WIRE SINGLE STAGE HEAT PUMP JUMPER INTACT B R RC O W Y G POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED USE EITHER O OR B ...

Page 22: ...SCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED 1 1 5 WIRE HEAT COOL JUMPER REMOVED HEATING RELAY OR VALVE COIL COOLING CONTACTOR COIL FAN RELAY B R RC O W Y G M18738 HEAT RELAY COMPRESSOR CONTACTOR COOL DAMPER 1 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED 1 5 WIRE HEAT COOL WITH DAMPER JUMPER INTACT B R RC O W Y G FAN RELAY HEAT DAMPER THERMOSTAT ...

Page 23: ...in the possession of a consumer Honeywells sole responsibility shall be to repair or replace the product within the terms stated above HONEYWELL SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING DIRECTLY OR INDIRECTLY FROM ANY BREACH OF ANY WARRANTY EXPRESS OR IMPLIED OR ANY OTHER FAILURE OF THIS PRODUCT Some states do not allow the ...

Page 24: ... consumer paper fibers 69 1284 2 J H Rev 04 01 www honeywell com yourhome Home and Building Control Home and Building Control Honeywell Honeywell Limited Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley MN 55422 Scarborough Ontario M1V 4Z9 ...

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