69-0733-3 PROGRAMMING AND INSTALLATION INSTRUCTIONS Honeywell/34 Weekday/Saturday/Sunday PROGRAMMABLE Programmable Heat and/or Cool Low Voltage (20 to 30 Vac)Thermostat and Wallplate THERMOSTAT Model CT3400/CT3455 TYPICAL ENERGY SAVINGS FOR REPRESENTATIVE CITIES IN THE U.S.
TOTAL COMFORT TEMPERATURE MANAGEMENT WITH ADAPTIVE INTELLIGENT RECOVERY™ Congratulations! You made a smart choice when you purchased your new Honeywell Thermostat. It’s the smart thermostat that: ■ Keeps you comfortable by automatically calculating exactly when the furnace or air conditioning should go on to have the house at the desired comfort temperature by the time you wake up or return home.
Table Of Contents STEP 1 Prepare For Installation .................................................................................................... 2 STEP 2 Remove Old Thermostat .................................................................................................. 4 STEP 3 Before You Program ......................................................................................................... 6 Install the Batteries .........................................................................
■ Acquire tools and items as needed (below). CROSS-RECESSED SCREWDRIVER HAND OR POWER DRILL WITH 3/16 INCH DRILL BIT, IF NEEDED, TO DRILL HOLES IN WALL WIRE CUTTER/STRIPPER OR SHARP KNIFE, IF NEEDED, TO STRIP WIRES MASKING TAPE, IF NEEDED, TO LABEL WIRES AS DISCONNECTED FROM OLD THERMOSTAT LEVEL, IF NEEDED, TO LEVEL THERMOSTAT FOR APPEARANCE 3 STEP 2 M878B 69-0733—3 Remove Old Thermostat ■ Test to make certain that your heating and cooling systems are working properly.
which programmable thermostats will work with your system, call Honeywell Customer Assistance at 1-800-468-1502. not allow them to touch, or you can damage your transformer. Disconnect the wires and wrap them separately using electrical tape; do not wrap them together. Place the wires where they will not interfere with the operation of the new thermostat. Record the colors and terminal designation labels of the remaining wires.
Adaptive Intelligent Recovery™ Selection IMPORTANT: Although the thermostat has a low battery indicator, replace the batteries once a year to prevent leakage and to prevent the thermostat and heating/cooling system from shutting down due to lack of battery power. Before you program your thermostat, you must decide if you want to leave the thermostat at the factory-set Adaptive Intelligent Recovery™ setting, or adjust it to conventional recovery.
STEP 4 Program The Thermostat After the batteries are installed, the thermostat can be easily programmed in your hand before it is installed on the wall. work or school. (This will be a higher temperature during heating season, or a lower temperature during cooling season.) DAYTIME is the time period you can set for an energy-saving temperature while you are away at work or school. (This will be a lower temperature during heating season, or a higher temperature during cooling season.
Personal Programming Chart Weekday Program PERIOD MORNING DAYTIME EVENING NIGHT HEATING 1 TEMPERATURE START TIME COOLING 1 TEMPERATURE (6:00 AM) _____________________ (70°F [21°C]) _____________________ ______________ ______________ ______________ ______________ (78°F [26°C]) _____________ _____________ (10:00 PM) _____________________ (60°F [16°C]) _____________________ (78°F [26°C]) _____________________ Saturday Program PERIOD MORNING DAYTIME EVENING NIGHT START TIME 1 HEATING TEMPERATURE
When programming your new thermostat, use this guide. Batteries are required for programming and operation. SET PRESENT DAY Set Press and release Day/Time Present then SET PRESENT TIME Set Press and release Day/Time Present then until present day shows. Day a Time until present time shows. HEATING PROGRAM With system switch at HEAT, press and release Morning . Use a Time a and Temp to program Mon-Fri MORNING time and temperature. Repeat using DAYTIME, EVENING, NIGHT keys.
For operating or making changes, use this guide. a Temp Temporarily Change temperature for current period only— ; TEMPORARY indicator shows on display, and cancels itself at next scheduled change. To cancel sooner, you may Run press Program . a Hold a temperature indefinitely (such as on vacation)— Run on display; to cancel, press Program . Check current temperature setting— Current Setting , Hold Temp Hold appears Temp .
■ Remove wallplate from wall, and drill 3/16 inch holes in wall (if drywall) as marked. For firmer material such as plaster or wood, drill 7/32 inch holes. Gently tap anchors (provided) into drilled holes until flush with the wall. LEVEL ■ Reposition wallplate over holes, pulling wires through wiring opening. Loosely insert two mounting screws into holes. M611B ■ Level for appearance only; thermostat functions properly even when not level. Tighten mounting screws.
RECOVERY SELECTION IMPORTANT: When using a high efficiency furnace such as a 90% or greater AFUE (Average Fuel Utilization Efficiency) unit, leave screw 1A in and screw 1B out one turn. 3A IN ADAPTIVE INTELLIGENT TM (FACTORY SETTING) OUT 1 TURN CONVENTIONAL BACK OF THERMOSTAT ■ The thermostat is set to display the time as a 12-hour clock and the temperature in degrees Fahrenheit. If a 24-hour clock (e.g.
STEP 8 Wire Wallplate Terminals NOTE: All wiring must comply with local codes and ordinances. If unsure about household wiring procedures, call your local heating/air conditioning contractor. ■ Loosen the terminal screws and slip each wire beneath its matching terminal. Either straight or wraparound wiring connections are acceptable (see illustration). Tighten terminals. Refer to masking tape labels you placed on wires when you removed your old thermostat.
3-WIRE HEAT ONLY (JUMPER INTACT) 5-WIRE HEAT/COOL (JUMPER REMOVED) THERMOSTAT W G HEATING RELAY OR VALVE COIL R RC THERMOSTAT Y R RC W G HEATING RELAY OR VALVE COIL FAN RELAY Y COOLING CONTACTOR COIL FAN RELAY 1 1 1 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. M 615A M613A 23 69-0733—3 STEP 9 Mount The Thermostat AM MON DAYTIME HEAT ON A.
STEP 10 Check Thermostat Operation After Programming And Installing HEATING Do not check heating system operation by jumpering thermostat terminals at the primary control, such as the gas valve, zone valve, oil burner control. This will damage the thermostat. Instead, you could jumper R and W wires at the thermostat. HEAT FAN OFF COOL ON AUTO Temp M2472 25 M2472 NOTE: When cooling setting is changed, thermostat may delay up to five minutes before turning on the air conditioner.
HEAT FAN OFF ON COOL AUTO Move the system switch to OFF and the fan switch to ON. The fan should run continuously. When the fan switch is in the AUTO position, fan cycles with the heating or cooling system. 27 69-0733—3 STEP 11 Set The Fan And System Switches First set the fan switch. FAN ON: The fan runs continuously. Use for improved air circulation during special occasions or for more efficient electronic air cleaning.
Then set the system switch. HEAT: The thermostat controls your heating system. HEAT OFF COOL OFF: Both the heating and air conditioning systems are off. HEAT OFF COOL COOL: The thermostat controls your air conditioning system. HEAT OFF COOL 29 69-0733—3 Troubleshooting Guide IF… Display does not come on. THEN… ■ Set the system switch to OFF. Remove batteries. Insert backward for at least five seconds to reset thermostat. Replace batteries correctly. Display should come on.
Heating does not come on. ■ Check that switch on thermostat is set to HEAT. ■ Check the system fuse or circuit breaker and replace or reset if necessary. If display is blank or displays REPL BAT, install fresh batteries. ■ Check for correct wiring and good connections. ■ Jumper wires R and W. If heat does not come on, contact your heating dealer. ■ If temperature setting is higher than current temperature, and HEAT ON is displayed, contact Honeywell Customer Assistance at 1-800-468-1502.
HEAT ON is displayed, but no heat is coming from the registers. ■ Allow time for the furnace to heat up and the fan to come on before checking for heat at the register. Note that on most gas and oil systems, the fan is not controlled by the thermostat, but by another control, which may account for the delay. The system cycle length is too short or too long. ■ Readjust according to instructions on pages 18 and 19. The thermostat's current setting does not match the display temperature to within ± 1°.
NOTICE: This equipment is a Class B digital apparatus, which complies with Canadian Radio Interference Regulations, CRC c.1374. Toll-free Customer Assistance For all questions concerning this thermostat, please read and follow the instructions. If additional assistance is needed, call Honeywell Customer Assistance toll-free at 1-800-468-1502, Monday-Friday, 7:00 a.m. - 5:30 p.m., Central time.