Honeywell CT3400 manual

Weekday/Saturday/Sunday Programmable Heat and/or Cool Low Voltage (20 to 30 Vac)Thermostat and Wallplate Model CT3400/CT3455 PR OGRAMMABLE THERMOST A T Honeywell/34 PROGRAMMING AND INSTALLATION INSTRUCTIONS J.S. Rev. 4-97 ©Honeywell Inc. 1997 Printed in U.S.A. Form Number 69-0733—3 69-0733-3 30% 28% 26% 24% 22% 20% 18% 16% 14% 12% 8% 6% 2% 10% 4[...]

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 condi- tioning should go on to have the house at the desired co[...]

STEP 1 Prepare For Installation ■ ■ Check Table 1 to make sure this thermostat is compatible with your system. If not, return to retailer. For more information, call Honeywell Customer Assistance, toll-free 1-800-468-1502. Table 1. Compatibility Chart. System Type Compatible with CT3400/3455 Gas—Standing Pilot Yes Gas—Electronic Ignition Ye[...]

3 69-0733—3 ■ ■ 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 NEE[...]

5 69-0733—3 which programmable thermostats will work with your system, call Honeywell Customer Assis- tance at 1-800-468-1502. Three thermostat wires? If you have three wires for heating only and can operate the fan using the fan ON switch, this thermostat will work with your system. However, some hot water (zoned) heating systems have three ther[...]

7 69-0733—3 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. As a precaution when leaving home for longer than a month, change batteries before you leave to prevent system fr[...]

STEP 4 Pr ogram The Thermostat work or school. (This will be a higher tem- perature 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 durin[...]

Sunday Program START HEATING COOLING PERIOD TIME TEMPERATURE TEMPERATURE MORNING _____________________ _____________________ _____________________ DAYTIME ______________ ______________ _____________ EVENING ______________ ______________ _____________ NIGHT _____________________ _____________________ _____________________ The temperatures cannot be [...]

COOLING PROGRAM The times you set for heating remain the same for cooling; you only need to program the temperatures. With system switch at COOL, press and release . Use a to program Mon-Fri MORNING temperature. Repeat using DAYTIME, EVENING, NIGHT keys. For Saturday, press to SAT. Press and release ; use a to program Saturday morning temperature. [...]

For operating or making changes, use this guide. Temporarily Change temperature for current period only — ; TEMPORARY indicator shows on display, and cancel s itself at next scheduled change. To cancel sooner, you may press . Hold a temperature indefinitely (such as on vacation)— , Hold appears on display; to cancel, press . Check current tempe[...]

17 69-0733—3 ■ ■ 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. ■ ■ Reposition wallplate over holes, pulling wires through wiring opening. Loosely insert two[...]

19 69-0733—3 SYSTEM GRAVITY AIR/WATER HOT WATER OR HIGH EFFICIENCY (90%+AFUE) GAS/OIL WARM AIR ELECTRIC WARM AIR 1A OUT  1 TURN OUT 1 TURN OUT 1 TURN 1B IN (FACTORY SETTING) IN IN DISPLAY 2A 2B 12 hr./ °F OUT 24 hr./ °F (FACTORY SETTING) IN M 618A 1A 1B 2A 2B OUT OUT OUT IN IN IN 24 hr./ °C 12 hr./ °C OUT 1 TU[...]

21 69-0733—3 NOTE: All wiring must comply with local codes and ordinances. If unsure about household wiring procedures, call your local heating/air conditioning contractor. Refer to masking tape labels you placed on wires when you removed your old thermostat. ■ ■ Match the letter of your old thermostat wire with the terminal of the correspond[...]

INSTALLATION 24 69-0733—3 23 69-0733—3 STEP 9 Mount The Thermostat A. ENGAGE TABS BETWEEN TOP OF THERMOSTAT AND WALLPLATE MON HEAT ON DAYTIME AM B. PRESS LOWER EDGE OF CASE TO LATCH MON HEAT ON DAYTIME AM Time Temp Current Setting Set Present Day Time Hold Temp Run Program Day Morning Night Daytime Evening Fan On A[...]

25 69-0733—3 26 69-0733-3 STEP 10 Check Thermostat Operation After Pr ogramming 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. In- stead, you could jumper R and W wires at the thermostat. [...]

27 69-0733—3 28 69-0733—3 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. FAN AUTO ON HEAT O FF COOL STEP 11 Set The F an And System Switches First set the fan switch. FAN ON: The fan runs continuously. Use for im[...]

29 69-0733—3 T r oubleshooting Guide IF… THEN… Display does not come on. ■ Set the system switch to OFF. Remove batteries. Insert back- ward for at least five seconds to reset thermostat. Replace batteries correctly. Display should come on. ■ Make sure batteries are fresh and installed correctly. ■ Gently clean battery contacts using a [...]

31 69-0733—3 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[...]

Adaptive Intelligent Recovery™ ....................... 7,8 Batteries, installation .............. 6 Batteries, replacement ........ 6,7 Blinking display ....................... 6 Canceling programs ............. 15 Change temperature ............. 1 5 Checking current setting ....... 15 Clock display ........................ 19 Conventional Recov[...]

35 69-0733—3 Limited One-Y ear W arranty Honeywell warrants this product, excluding battery, to be free from defects in the workmanship or materials, under normal use and service, for a period of one (1) year from the date of purchase by the consumer. If, at any time during the warranty period, the product is defective or malfunctions, Honeywell [...]