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Honeywell CT3300 Installation And Programming Instructions
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Honeywell CT3300 Installation And Programming Instructions

Weekday/weekend (5-day/2-day) programmable heat and/or cool low voltage (20 to 30 vac) thermostat and mounting plate
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CT3300 Programmable Thermostat
INSTALLATION AND PROGRAMMING INSTRUCTIONS
Welcome to the world of comfort and energy savings with your new
Honeywell Programmable Thermostat. Your new thermostat will
automatically control the temperature in your home, keeping you
comfortable while saving energy.
Weekday/Weekend (5-day/2-day)
Programmable Heat and/or Cool
Low Voltage (20 to 30 Vac)
Thermostat and Mounting Plate
Model CT3300

Table of Contents

Installation ..................................................................................................................................................................
2
Programming.............................................................................................................................................................. 11
Operation.................................................................................................................................................................... 17
Frequently Asked Questions ...................................................................................................................................... 22
Customer Assistance ................................................................................................................................................. 23
Limited Warranty ........................................................................................................................................................ 24
® U.S. Registered Trademark
Copyright © 2003 Honeywell International Inc.
All Rights Reserved
69-1634-1

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  • Page 1: Table Of Contents

    CT3300 Programmable Thermostat INSTALLATION AND PROGRAMMING INSTRUCTIONS Welcome to the world of comfort and energy savings with your new Honeywell Programmable Thermostat. Your new thermostat will automatically control the temperature in your home, keeping you comfortable while saving energy. Weekday/Weekend (5-day/2-day)

  • Page 2: Installation

    If your system is not compatible with the CT3300, the table recommends an alternate Honeywell model. If you are unsure what type of thermostat is right for your system, visit us on the Web at www.honeywell.com/yourhome or call Honeywell Customer Care at 1-800-468-1502.
  • Page 3 Screws and anchors. • Installation and Programming Instructions. Gather the needed tools and supplies listed below. Required Tools and Supplies Optional Tools • Two AA alkaline batteries. Honeywell recommends Energizer® • Wire cutter/stripper or sharp knife. batteries. • Level. •...
  • Page 4 Step 2. Remove Old Thermostat Fig. 2. a. Turn off power to the heating/cooling system, either at the furnace or at the fuse/circuit breaker panel. b. Remove the cover of your old thermostat (Fig. 2). Unscrew and remove the old thermostat’s mounting plate from the wall, but do not disconnect the wires.

  • Page 5: Install The Mounting Plate

    Step 3. Install Mounting Plate Fig. 5. a. Separate the mounting plate from the thermostat using a coin, as shown in Fig 5. b. Position the mounting plate on the wall. Be sure the mounting plate is flush against the wall and none of the wires are trapped behind it. Level the mounting plate and use a pencil to mark the center of the mounting plate screw holes.
  • Page 6 Step 4. Set Thermostat for Your Type of Heating System IMPORTANT: Setting your thermostat correctly for your THERMOSTAT BACK type of heating system allows it to maintain accurate temperature control, minimize DISPLAY F 3 - ON swings in the temperature of the room, and DISPLAY C 3 - OFF HEATING...
  • Page 7 Heating System Table DIP Switches Type of System 1 and 2 Fuel Switch Warm air, gas, or oil heating system with an efficiency rating under 90%. Use factory setting (The furnace efficiency rating should be on the furnace.) 1–On; 2–On High-efficiency furnace such as a 90% or greater AFUE (Average Fuel 1–Off;...
  • Page 8 Fig. 13. IMPORTANT: Batteries must be installed for programming and operation of the thermostat and heating/cooling system. Honeywell recommends using Energizer® batteries. a. Make sure that the System switch is set in the Off position. b. Using a coin, open the battery door as shown in Fig. 13.
  • Page 9 Special Wiring Instructions Clock thermostat with C or C1 terminals A clock thermostat has one or two extra wires attached to C or C1 terminals for clock operation that are not used when installating your thermostat. They must be insulated from each other to avoid damaging your electrical circuit. a.
  • Page 10 Old thermostat terminals that do not match new thermostat terminals Use the table below to wire the new thermostat. Connect to New Old Thermostat Thermostat Terminal Terminal Description R, RH, 4, V Power Rc, R Power for cooling W, W Heat Y, Y Cooling...

  • Page 11: Programming

    Setting System Time–Current time or program time. Auto On Cool Off Heat Temperature–Room or programmed temperature. CT3300 WITH HEAT/COOL–Indicates if heating or cooling schedule is running DOOR CLOSED or being programmed. TEMPORARY–Displays temporary override made to program. M20161 Temp Warmer and Cooler–Raises or lowers temperature.
  • Page 12 (Fig. 19). Step 2. Learn About Programming Features Your CT3300 Thermostat allows you to program schedules for both a heating season and a cooling season. • During the heating season, you will want to set the normal room temperature higher and the energy-saving temperature lower.
  • Page 13 Program Period Description When Available The time when you get up and get ready to leave your home. You can Weekdays and weekend WAKE set the system at a comfortable temperature for this period. The time when you are regularly away from home. You can set up an Weekdays only LEAVE energy-saving temperature for this period.
  • Page 14 Step 3. Program Heating Schedule a. Write in the times and temperatures that you want to program for your heating schedule. Program Heating Schedule Period WAKE LEAVE RETURN SLEEP Suggested Time 6:00 AM 8:00 AM 6:00 PM 10:00 PM Settings Temp 70°F (21°C) 62°F (16.5°C)
  • Page 15 Fig. 22. Press to display a blank schedule for the next pro- gram period (Fig. 22) and repeat steps d. through f. for each weekday program period. Fig. 23. g. Press until the weekend schedule is displayed (Fig. 23). h. Set the Saturday and Sunday WAKE time by pressing until the desired time is displayed.
  • Page 16 Step 4. Program Cooling Schedule a. Write in the times and temperatures you want to program for your cooling schedule. Program Cooling Schedule Period WAKE LEAVE RETURN SLEEP Suggested Time 6:00 AM 8:00 AM 6:00 PM 10:00 PM Settings Temp 78°F (25.5°C) 85°F (29.5°C) 78°F (25.5°C)

  • Page 17: Operation

    d. Set the System switch to Cool, and the Fan switch to Auto. Fig. 26. e. Press until the setting is 10°F (6°C) below room temperature (Fig. 26). Your cooling system and fan should start. NOTE: When cooling setting is changed, thermostat can delay up to five minutes before turning on air conditioner.

  • Page 18: Set Fan And System Switches

    Set Fan and System Switches The switches on the bottom of the thermostat faceplate control the operation of your fan and the heating and cooling system. Set the Fan switch first and then set the System switch. Switch Setting Result Auto A single-speed fan turns on automatically with the air conditioner or furnace.
  • Page 19 d. Install new batteries. Make sure that positive and negative terminals are oriented as marked inside battery case. e. Close the battery door and set the System switch to Heat or Cool. NOTE: If “bAt Lo” continues to display after replacing the batteries, set System switch to Off, insert batteries back- ward, wait for five to ten seconds, and return batteries to correct orientation.
  • Page 20 Hold a temperature indefinitely Fig. 28. Use the Hold Temp feature when you want to maintain a constant temperature indefinitely, such as when you go on vacation. a. Press . “HLd” is displayed (Fig. 28). b. Press until the desired temperature is displayed.
  • Page 21 Cancel a program Fig. 30. a. Press until the desired program is dis- played (Fig 30). Fig. 31. b. Press A blank program schedule is displayed and the program is canceled (Fig. 31). Check how long heat/air conditioning has been running Fig.

  • Page 22: Frequently Asked Questions

    Change a program permanently Follow steps for programming heating schedule or programming cooling schedule. FREQUENTLY ASKED QUESTIONS If... Then... Display does not come on • Make sure the batteries are fresh and installed correctly. • Set System switch to Off. Remove batteries and insert backward for five to ten seconds to reset thermostat.

  • Page 23: Customer Assistance

    During recovery from setback or setup, setting and displayed room temperatures can differ for up to 30 minutes after recovery period. CUSTOMER ASSISTANCE Visit us on the Web at www.honeywell.com/yourhome or call Honeywell Customer Care at 1-800-468-1502. Before you call, please have the following information available: —...

  • Page 24: Limited Warranty

    Scarborough, Ontario M1V 4Z9 This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by Honeywell that the defect or malfunction was caused by damage which occurred while the product was in the possession of a consumer.

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