Owner's Manual
Page 1
...; •All Rights Reserved Place Bar Code Here 69- 1284- 2 Weekday, Saturday and Sunday Programmable Heat and/or Cool Low Voltage (20 to 30 Vac) Thermostat and Wallplate Model CT3550 Honeywell CT3550 PROGRAMMABLE THERMOSTAT OWNER'S GUIDE Para pedir estas instrucciones en español, llame al 1-800-468-1502. Prepare for Installation ...5 Step 2. Operating Your...
...; •All Rights Reserved Place Bar Code Here 69- 1284- 2 Weekday, Saturday and Sunday Programmable Heat and/or Cool Low Voltage (20 to 30 Vac) Thermostat and Wallplate Model CT3550 Honeywell CT3550 PROGRAMMABLE THERMOSTAT OWNER'S GUIDE Para pedir estas instrucciones en español, llame al 1-800-468-1502. Prepare for Installation ...5 Step 2. Operating Your...
Owner's Manual
Page 2
...in a sealed tube. Read these instructions can damage the product or cause a hazardous condition. Total comfort temperature management with your Honeywell thermostat - MERCURY NOTICE If this control, or of energy and money by automatically remembering to adjust the temperature when you leave home ... the maximum amount of an old control containing mercury in the trash. You made a smart choice by purchasing your new Honeywell thermostat the smart thermostat that can use the preprogrammed schedule, or set your own. This manual answers many of the art in comfort and convenience...
...in a sealed tube. Read these instructions can damage the product or cause a hazardous condition. Total comfort temperature management with your Honeywell thermostat - MERCURY NOTICE If this control, or of energy and money by automatically remembering to adjust the temperature when you leave home ... the maximum amount of an old control containing mercury in the trash. You made a smart choice by purchasing your new Honeywell thermostat the smart thermostat that can use the preprogrammed schedule, or set your own. This manual answers many of the art in comfort and convenience...
Owner's Manual
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DIGITAL DISPLAY SET CURRENT DAY/TIME SETS CURRENT TIME AND DAY RUN PROGRAM RETURNS THERMOSTAT TO NORMAL OPERATING MODE Run Program Set Current Day/Time Time Wake Set Program Leave Return Sleep HOLD TEMP SETS A HOLD TEMPERATURE SETTING AND ACTIVATES ...
DIGITAL DISPLAY SET CURRENT DAY/TIME SETS CURRENT TIME AND DAY RUN PROGRAM RETURNS THERMOSTAT TO NORMAL OPERATING MODE Run Program Set Current Day/Time Time Wake Set Program Leave Return Sleep HOLD TEMP SETS A HOLD TEMPERATURE SETTING AND ACTIVATES ...
Owner's Manual
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... DISPLAYED IS THE CURRENT ROOM TEMPERATURE SHOWS THE BATTERIES ARE LOW AND MUST BE REPLACED SHOWS CURRENT SYSTEM KEY POSITION HEAT/OFF/COOL SHOWS THAT THERMOSTAT IS "CALLING" FOR HEAT OR COOL DISPLAYS EITHER ROOM OR SET TEMPERATURES SHOWS CURRENT FAN KEY POSITION ON/AUTO SHOWS... THERMOSTAT IS CALLING FOR THE FAN SHOWS THERMOSTAT IS PROCESSING INFORMATION AND WAITING TO CALL FOR HEAT OR COOL SHOWS SMART RESPONSE IS OFF. CONVENTIONAL RECOVERY IS ON SHOWS SMART RESPONSE IS CHANGING...
... DISPLAYED IS THE CURRENT ROOM TEMPERATURE SHOWS THE BATTERIES ARE LOW AND MUST BE REPLACED SHOWS CURRENT SYSTEM KEY POSITION HEAT/OFF/COOL SHOWS THAT THERMOSTAT IS "CALLING" FOR HEAT OR COOL DISPLAYS EITHER ROOM OR SET TEMPERATURES SHOWS CURRENT FAN KEY POSITION ON/AUTO SHOWS... THERMOSTAT IS CALLING FOR THE FAN SHOWS THERMOSTAT IS PROCESSING INFORMATION AND WAITING TO CALL FOR HEAT OR COOL SHOWS SMART RESPONSE IS OFF. CONVENTIONAL RECOVERY IS ON SHOWS SMART RESPONSE IS CHANGING...
Owner's Manual
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...240 line volt)b Single Stage Heat Pump Multistage Heat Pumps/Multistage Equipment Compatibility with CT3550 Yes Yes Yesa Yes Yesa Yes Yes Yes No Yes No a Compatible with...or 2-wire White Rodgers no. 1361 zone valves. Compatibility Chart. Not compatible with 2-wire Honeywell and Taco zone valves. b Not compatible with your system. If your system is compatible ...with any 120/240 volt system. Standing Pilot Gas - STEP 1. Table 1. Gas - Package Contents. • Thermostat • Screws and anchors • 3 Energizer® AA batteries • Wallplate • Wiring labels •...
...240 line volt)b Single Stage Heat Pump Multistage Heat Pumps/Multistage Equipment Compatibility with CT3550 Yes Yes Yesa Yes Yesa Yes Yes Yes No Yes No a Compatible with...or 2-wire White Rodgers no. 1361 zone valves. Compatibility Chart. Not compatible with 2-wire Honeywell and Taco zone valves. b Not compatible with your system. If your system is compatible ...with any 120/240 volt system. Standing Pilot Gas - STEP 1. Table 1. Gas - Package Contents. • Thermostat • Screws and anchors • 3 Energizer® AA batteries • Wallplate • Wiring labels •...
Owner's Manual
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... avoid compressor damage, do not need to the wallplate and lift the thermostat away. ❑ Disconnect the wires from the old thermostat. WIRES THROUGH WALL OPENING M5136 Replacing a Clock Thermostat that has Six or More Wires If there are replacing a Honeywell Chronotherm® Thermostat, you disconnect each wire, attach the enclosed labels with multistage systems...
... avoid compressor damage, do not need to the wallplate and lift the thermostat away. ❑ Disconnect the wires from the old thermostat. WIRES THROUGH WALL OPENING M5136 Replacing a Clock Thermostat that has Six or More Wires If there are replacing a Honeywell Chronotherm® Thermostat, you disconnect each wire, attach the enclosed labels with multistage systems...
Owner's Manual
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...or cooling contractor. Level the wallplate for a heating only system and can operate the fan using the fan ON switch this thermostat works with the wall. ❑ Reposition the wallplate over the holes. Gently, tap the (provided) anchors into each of the wallplate and... wall. WALL WIRES THROUGH WALL M16427 WALL ANCHORS (2) MOUNTING HOLES MOUNTING SCREWS M15044 7 69-1284-2 Replacing a Thermostat that best fit the application. ❑ Remove the wallplate from the thermostat. For materials such as plaster or wood, drill 7/32 in wall (if drywall) as shown. Loosely insert ...
...or cooling contractor. Level the wallplate for a heating only system and can operate the fan using the fan ON switch this thermostat works with the wall. ❑ Reposition the wallplate over the holes. Gently, tap the (provided) anchors into each of the wallplate and... wall. WALL WIRES THROUGH WALL M16427 WALL ANCHORS (2) MOUNTING HOLES MOUNTING SCREWS M15044 7 69-1284-2 Replacing a Thermostat that best fit the application. ❑ Remove the wallplate from the thermostat. For materials such as plaster or wood, drill 7/32 in wall (if drywall) as shown. Loosely insert ...
Owner's Manual
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...R and RC if wires are both of those terminals. ❑ For wiring diagrams, if needed, see illustration). ❑ Match the letter of your old thermostat wire with the corresponding terminal letter on your local heating/air-conditioning contractor. Slip each wire beneath its matching terminal. Tighten the terminals. Y G R W ... WIRE WALLPLATE TERMINALS IMPORTANT All wiring must comply with insulation to the labels you placed on the wires when you removed the old thermostat (see pp 21-22. ❑ Loosen the terminal screws. If unsure about household wiring procedures, call your new...
...R and RC if wires are both of those terminals. ❑ For wiring diagrams, if needed, see illustration). ❑ Match the letter of your old thermostat wire with the corresponding terminal letter on your local heating/air-conditioning contractor. Slip each wire beneath its matching terminal. Tighten the terminals. Y G R W ... WIRE WALLPLATE TERMINALS IMPORTANT All wiring must comply with insulation to the labels you placed on the wires when you removed the old thermostat (see pp 21-22. ❑ Loosen the terminal screws. If unsure about household wiring procedures, call your new...
Owner's Manual
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...electrical tape and push the taped wire back into the wiring hole in heat. (Single stage heat pump only). Tape off end of the thermostat and the heating/cooling system. ❑ Install the batteries in cool. (Single stage heat pump only). STEP 5. Batteries must be installed.... c Tape off B. INSTALL THE BATTERIES IMPORTANT Three AA alkaline batteries are present on Old Thermostat Connect To Description R, RHa, 4, V R Power Rc, Ra Rc Power for programming and operation of the wire with the thermostat. M10622 9 69-1284-2 Cc, Xc, Bb Do not connect. a If both O...
...electrical tape and push the taped wire back into the wiring hole in heat. (Single stage heat pump only). Tape off end of the thermostat and the heating/cooling system. ❑ Install the batteries in cool. (Single stage heat pump only). STEP 5. Batteries must be installed.... c Tape off B. INSTALL THE BATTERIES IMPORTANT Three AA alkaline batteries are present on Old Thermostat Connect To Description R, RHa, 4, V R Power Rc, Ra Rc Power for programming and operation of the wire with the thermostat. M10622 9 69-1284-2 Cc, Xc, Bb Do not connect. a If both O...
Owner's Manual
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... retains the current time and day. If the display is already mounted on the wall, remove the thermostat by placing your thumb between the thermostat and wallplate and pulling the thermostat up and away as shown. Always use fresh alkaline batteries. As a precaution when leaving home for ...30 seconds of power. Replace the batteries as soon as long. You must reset the time and day. Honeywell recommends Energizer® batteries. STEP 6. ❑ If the thermostat is blank, the batteries are running low, a REPL BAT message flashes for one to lack of battery ...
... retains the current time and day. If the display is already mounted on the wall, remove the thermostat by placing your thumb between the thermostat and wallplate and pulling the thermostat up and away as shown. Always use fresh alkaline batteries. As a precaution when leaving home for ...30 seconds of power. Replace the batteries as soon as long. You must reset the time and day. Honeywell recommends Energizer® batteries. STEP 6. ❑ If the thermostat is blank, the batteries are running low, a REPL BAT message flashes for one to lack of battery ...
Owner's Manual
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CUSTOMIZE YOUR THERMOSTAT Your Honeywell CT3550 thermostat comes preset to main display. NUMBER - 1 = Electric furnace or single stage heat pump. System Type (Feature Number 4) System type options are : - Smart Response technology on. - ... pens and pencil points can change any or all of these settings. Fan Operation (Feature Number 2) Fan operation options are: FEATURE - 0 = Gas or oil furnace. Thermostat controls fan operation during heating (preset).
CUSTOMIZE YOUR THERMOSTAT Your Honeywell CT3550 thermostat comes preset to main display. NUMBER - 1 = Electric furnace or single stage heat pump. System Type (Feature Number 4) System type options are : - Smart Response technology on. - ... pens and pencil points can change any or all of these settings. Fan Operation (Feature Number 2) Fan operation options are: FEATURE - 0 = Gas or oil furnace. Thermostat controls fan operation during heating (preset).
Owner's Manual
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... the Day/Time will advance the time in one hour ❑ Press Run . Factory Set Function (Feature Number 37) Do not change the temperature. The thermostat displays day, time, program period, temperature, system and fan settings. STEP 8. SET THE CLOCK M13346 Set Current Day and Time NOTE: On initial power-up... temperature while you are near the display. Set Current until screen shows current day. ❑ Press time or increments). Leave (This is located behind the thermostat cover. Program STEP 9. Pressing displays the current temperature settings.
... the Day/Time will advance the time in one hour ❑ Press Run . Factory Set Function (Feature Number 37) Do not change the temperature. The thermostat displays day, time, program period, temperature, system and fan settings. STEP 8. SET THE CLOCK M13346 Set Current Day and Time NOTE: On initial power-up... temperature while you are near the display. Set Current until screen shows current day. ❑ Press time or increments). Leave (This is located behind the thermostat cover. Program STEP 9. Pressing displays the current temperature settings.
Owner's Manual
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... time and temperature for weekdays. ❑ Press and release . Table 3 can be higher than 90°F (32°C) or lower than 45°F (7°C). The thermostat default settings are in 15 minute intervals. NOTE: Program times are shown in the display.
... time and temperature for weekdays. ❑ Press and release . Table 3 can be higher than 90°F (32°C) or lower than 45°F (7°C). The thermostat default settings are in 15 minute intervals. NOTE: Program times are shown in the display.
Owner's Manual
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OPERATING YOUR THERMOSTAT Change Temperature Setting Until the Next Program Period (Temporary Change) ❑ Press or until "Heat" or "Cool" is displayed. ❑ Press , Wake , Leave or Return ...
OPERATING YOUR THERMOSTAT Change Temperature Setting Until the Next Program Period (Temporary Change) ❑ Press or until "Heat" or "Cool" is displayed. ❑ Press , Wake , Leave or Return ...
Owner's Manual
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...off. Press Fan until display shows Heat. NOTE: If you set the fan to On during normal operation, the fan reverts to the G thermostat terminal). Cool: The thermostat controls your heating system. Fan Auto: Normal setting for improved air circulation or more efficient central air cleaning. (In a heat only system, ... the display shows Cool. 17 69-1284-2 Press Fan until display shows Auto. Use for most homes. Set the System Key Heat: The thermostat controls your air conditioning system. SET THE FAN AND SYSTEM KEY Set the Fan Key Fan On: The fan runs continuously. STEP 11.
...off. Press Fan until display shows Heat. NOTE: If you set the fan to On during normal operation, the fan reverts to the G thermostat terminal). Cool: The thermostat controls your heating system. Fan Auto: Normal setting for improved air circulation or more efficient central air cleaning. (In a heat only system, ... the display shows Cool. 17 69-1284-2 Press Fan until display shows Auto. Use for most homes. Set the System Key Heat: The thermostat controls your air conditioning system. SET THE FAN AND SYSTEM KEY Set the Fan Key Fan On: The fan runs continuously. STEP 11.
Owner's Manual
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... reached. Solution Guide. If... Temperature settings will not change • Make sure the temperature setpoints are installed correctly. • Make sure the thermostat is not. Mount and latch the thermostat on . • Make sure the cooling setpoint is below the room temperature. • Make sure the circuit breaker is not tripped, and...
... reached. Solution Guide. If... Temperature settings will not change • Make sure the temperature setpoints are installed correctly. • Make sure the thermostat is not. Mount and latch the thermostat on . • Make sure the cooling setpoint is below the room temperature. • Make sure the circuit breaker is not tripped, and...
Owner's Manual
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...... 1. Check the program times for Smart Response control, the start times occur before your programmed comfort periods. For additional information, go to the thermostat. 19 69-1284-2 The Center hours are correct. 4. If... Make sure the AM and PM settings are correct. 3. Temperature change occurs at 1-800-468-1502. ... Please read and follow the provided instructions for example, hot water, warm air, oil, or gas). • Location and number of wires connected to www.honeywell.com/yourhome or call the Honeywell Customer Relations Center at the wrong times.
...... 1. Check the program times for Smart Response control, the start times occur before your programmed comfort periods. For additional information, go to the thermostat. 19 69-1284-2 The Center hours are correct. 4. If... Make sure the AM and PM settings are correct. 3. Temperature change occurs at 1-800-468-1502. ... Please read and follow the provided instructions for example, hot water, warm air, oil, or gas). • Location and number of wires connected to www.honeywell.com/yourhome or call the Honeywell Customer Relations Center at the wrong times.
Owner's Manual
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... time accordingly. • It takes a few days after installation for the thermostat to adjust to turn off Smart Response technology by selecting Conventional Recovery. TEMPERATURE ... 5:30 6:00 6:30 ENERGY SAVINGS PERIOD RECOVERY FROM ENERGY SAVINGS TIME COMFORT PERIOD THERMOSTAT USES THE SAME SCHEME TO RETURN TO LOWER COMFORT TEMPERATURE DURING THE COOLING SEASON. ...construction of day when you want the comfort temperature established. When the thermostat activates Smart Response technology, the thermostat displays In Recovery, changes the setpoint, and turns on your heating/...
... time accordingly. • It takes a few days after installation for the thermostat to adjust to turn off Smart Response technology by selecting Conventional Recovery. TEMPERATURE ... 5:30 6:00 6:30 ENERGY SAVINGS PERIOD RECOVERY FROM ENERGY SAVINGS TIME COMFORT PERIOD THERMOSTAT USES THE SAME SCHEME TO RETURN TO LOWER COMFORT TEMPERATURE DURING THE COOLING SEASON. ...construction of day when you want the comfort temperature established. When the thermostat activates Smart Response technology, the thermostat displays In Recovery, changes the setpoint, and turns on your heating/...
Owner's Manual
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...SUPPLIED) CONNECT W TO Y. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. WIRING DIAGRAMS 2-WIRE HEAT-ONLY (JUMPER INTACT) THERMOSTAT B RC O W Y R G 4-WIRE HEAT/COOL (JUMPER INTACT) THERMOSTAT B RC O W Y R G HEATING RELAY OR VALVE COIL 1 1 POWER SUPPLY. M12739 21 69-1284-2 PROVIDE ...POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 4-WIRE SINGLE-STAGE HEAT PUMP (JUMPER INTACT) M10617 THERMOSTAT B RC O W Y R G 3 2 COMPRESSOR HEAT CHANGEOVER CONTACTOR 2 VALVE 1 COOL CHANGEOVER FAN VALVE RELAY 1 POWER SUPPLY. M10616...
...SUPPLIED) CONNECT W TO Y. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. WIRING DIAGRAMS 2-WIRE HEAT-ONLY (JUMPER INTACT) THERMOSTAT B RC O W Y R G 4-WIRE HEAT/COOL (JUMPER INTACT) THERMOSTAT B RC O W Y R G HEATING RELAY OR VALVE COIL 1 1 POWER SUPPLY. M12739 21 69-1284-2 PROVIDE ...POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 4-WIRE SINGLE-STAGE HEAT PUMP (JUMPER INTACT) M10617 THERMOSTAT B RC O W Y R G 3 2 COMPRESSOR HEAT CHANGEOVER CONTACTOR 2 VALVE 1 COOL CHANGEOVER FAN VALVE RELAY 1 POWER SUPPLY. M10616...
Owner's Manual
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... O W Y R G HEATING RELAY OR VALVE COIL 1 FAN RELAY COOLING CONTACTOR COIL 1 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. FAN RELAY 1 M18738 Notice: This thermostat is a Class B digital apparatus that complies with Canadian Radio Interference Regulations, CRC c. 1374. 69-1284-2 22 PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. M10619...
... O W Y R G HEATING RELAY OR VALVE COIL 1 FAN RELAY COOLING CONTACTOR COIL 1 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. FAN RELAY 1 M18738 Notice: This thermostat is a Class B digital apparatus that complies with Canadian Radio Interference Regulations, CRC c. 1374. 69-1284-2 22 PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. M10619...