Honeywell CT3300 warranty Operation, Change the clock for Daylight/Standard Time, Setting Result

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f.Press until the setting is 10°F (6°C) above room temperature.

Your cooling system and fan should stop.

g.Set the System switch to OFF and the Fan switch to AUTO. The cooling system and fan should be off.

Operation

Change the clock for Daylight/Standard Time

a.Press once. The time is displayed.

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

c.Press once.

The current time and day and the current temperature are displayed.

Set the Fan and System switches

The switches on the bottom of the thermostat faceplate (Fig. 16 page 11) 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

 

 

 

 

 

Fan

Auto

A single-speed fan turns on automatically with the air conditioner or furnace.

 

 

 

 

A two-speed fan usually runs on high with the air conditioner and on low with the furnace.

 

 

 

Auto is the normal setting for most homes.

 

 

 

 

 

 

 

On

The fan runs continuously. Use this setting for improved air circulation during special occasions

 

 

 

or for more efficient air cleaning.

 

 

 

Note: In a heat-only system, the fan runs continuously only if the fan wire has been connected to

 

 

 

the G terminal on the back of the thermostat.

 

 

 

 

 

69-0654-5

 

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Contents Table of Contents Installation and Programming InstructionsRecycling thermostat InstallationVerify that you have the right thermostat Required tools and supplies Optional tools Prepare for installationCheck your progress Remove the old thermostatInstall the mounting plate Set the thermostat for your type of heating system Fuel SwitchHeating system table Wire the thermostat terminalsType of system Screws a and B Fuel switch Mount the thermostat Install the batteriesSix or more wires Special wiring instructionsThree thermostat wires Wires that are not connected to the old thermostatFive wires connected to the old thermostat Descriptions ProgrammingFaceplate illustration and descriptions Set the current time and day Learn about the programming featuresProgramming tips Program period Description When availableSchedule Period Program the heating scheduleHeating Program Cooling Program Program the cooling scheduleVerify that your cooling system works Check out the systemVerify that your heating system works Setting Result Set the Fan and System switchesOperation Change the clock for Daylight/Standard TimeIf you see Batteries are You should Switch Setting ResultReplace the batteries Hold a temperature indefinitely Override the program settingsChange the temperature temporarily Check programs Check the current programmed temperatureCancel a program Change a program permanently Reset the cumulative usage counter to zeroCheck how long heat/air conditioning has been running Then Frequently asked questionsCustomer assistance Home and Building Control Limited 1-year warranty
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