Honeywell CT3300 warranty Set the current time and day, Learn about the programming features

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Step 1. Set the current time and day

	Fig. 17
a. Press	once.

The time is displayed (Fig. 17).

b.Press and hold or until the current time is displayed.

	Fig. 18
c. Press	again.

The day is displayed (Fig. 18).

d.Press and hold or until the current day is displayed.

	Fig. 19
e. Press	once.

The current time and day and the current temperature are displayed (Fig. 19).

Step 2. Learn about the 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.

•The reverse is true during the cooling season—the normal room temperature will be lower and the energy-saving temperature higher.

For each season, you can set up to four program periods for the weekdays (Monday–Friday), and up to two program periods for the weekends (Saturday and Sunday). The program periods are defined on the next page.

12 PROGRAMMING

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Contents Installation and Programming Instructions Table of ContentsInstallation Verify that you have the right thermostatRecycling thermostat Prepare for installation Required tools and supplies Optional toolsRemove the old thermostat Check your progressInstall the mounting plate Fuel Switch Set the thermostat for your type of heating systemWire the thermostat terminals Type of system Screws a and B Fuel switchHeating system table Install the batteries Mount the thermostatSpecial wiring instructions Six or more wiresThree thermostat wires Wires that are not connected to the old thermostatFive wires connected to the old thermostat Programming Faceplate illustration and descriptionsDescriptions Learn about the programming features Set the current time and dayProgram period Description When available Programming tipsProgram the heating schedule Heating ProgramSchedule Period Program the cooling schedule Cooling ProgramCheck out the system Verify that your heating system worksVerify that your cooling system works Set the Fan and System switches Setting ResultOperation Change the clock for Daylight/Standard TimeSwitch Setting Result Replace the batteriesIf you see Batteries are You should Override the program settings Change the temperature temporarilyHold a temperature indefinitely Check the current programmed temperature Cancel a programCheck programs Reset the cumulative usage counter to zero Check how long heat/air conditioning has been runningChange a program permanently Frequently asked questions ThenCustomer assistance Limited 1-year warranty Home and Building Control