Honeywell CT3300 warranty Mount the thermostat, Install the batteries

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Step 6. Mount the thermostat

Fig. 11	Fig. 12	a. Align the tabs at the top of the thermostat with the tabs at the
		top of the mounting plate (Fig. 11).

b.Press the lower edge of the case to latch the bottom of the thermostat (Fig. 12).

M20131

M20130

Step 7. Install the batteries

Fig. 13

	REMOVING
	BATTERY
M1719C	DOOR

Fig. 14

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.

c.Install the batteries.

Make sure that the positive and negative terminals are oriented correctly as marked inside the battery case.

d.Replace the battery door.

e.Remove the clear plastic label from the digital display.

✓Check your progress

When the batteries are installed correctly, the digital display flashes all entries once, then begins to flash a default time and the current temperature (Fig. 14). The flashing continues until you begin to program the thermostat.

You are now ready to program the thermostat. Go to page 12.

8 INSTALLATION

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Contents Installation and Programming Instructions Table of ContentsRecycling thermostat InstallationVerify that you have the right 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 systemHeating system table Wire the thermostat terminalsType of system Screws a and B Fuel switch 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 Descriptions ProgrammingFaceplate illustration and descriptions Learn about the programming features Set the current time and dayProgram period Description When available Programming tipsSchedule Period Program the heating scheduleHeating Program Program the cooling schedule Cooling ProgramVerify that your cooling system works Check out the systemVerify that your heating system works Set the Fan and System switches Setting ResultOperation 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 Frequently asked questions ThenCustomer assistance Limited 1-year warranty Home and Building Control