Table of Contents | Honeywell CT3300 instruction

MagicStat® CT3300 Programmable Thermostat

Installation and Programming Instructions

Welcome to the world of comfort and energy savings with your new Honeywell MagicStat® Programmable Thermostat. Your new thermostat will automatically control the temperature in your home, keeping you comfortable while saving energy.

If you have any questions about using this thermostat, visit our home expert Web site at www.honeywell.com/yourhome or call Honeywell Customer Relations at 1-800-468-1502.

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
Change the clock for Daylight/	17
Standard Time
Set the Fan and System switches	17
Replace the batteries	18
Override the program settings	19
Frequently asked questions	22
Limited 1-Year Warranty	24

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Honeywell CT3300 warranty Installation and Programming Instructions, Table of Contents

Contents

Table of Contents Installation and Programming Instructions Verify that you have the right thermostat InstallationRecycling thermostat Required tools and supplies Optional tools Prepare for installation Check your progress Remove the old thermostat Install the mounting plate Set the thermostat for your type of heating system Fuel Switch Type of system Screws a and B Fuel switch Wire the thermostat terminalsHeating system table Mount the thermostat Install the batteries Six or more wires Special wiring instructionsThree thermostat wires Wires that are not connected to the old thermostat Five wires connected to the old thermostat Faceplate illustration and descriptions ProgrammingDescriptions Set the current time and day Learn about the programming features Programming tips Program period Description When available Heating Program Program the heating scheduleSchedule Period Cooling Program Program the cooling schedule Verify that your heating system works Check out the systemVerify that your cooling system works Setting Result Set the Fan and System switchesOperation Change the clock for Daylight/Standard Time Replace the batteries Switch Setting ResultIf you see Batteries are You should Change the temperature temporarily Override the program settingsHold a temperature indefinitely Cancel a program Check the current programmed temperatureCheck programs Check how long heat/air conditioning has been running Reset the cumulative usage counter to zeroChange a program permanently Then Frequently asked questions Customer assistance Home and Building Control Limited 1-year warranty