Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Catalog No. 535-330 Printed in U.S.A. Form OM53-5 Pg 1 11-04 Replaces: NewBook 1 4Tab 3e 2f• Dual Set Point• 5+1+1 Day Programmable• 3 Occupied Periods and 1 Unoccupied Period• Very Easy to Program• Large, Easy to Read Display• Thermoglow™ Backlight• No Batteries Required• Auto Changeover• Energy Saving Smart Fan• Locking Keypad• Override Button• 3 Fan Speeds• Meets California Title 24• Use with Carrier Duct-free HEAT-COOL or COOL-ING ONLY systemsDISPLAY 1QUICK STARTSet the clock and go 2BASIC OPERATION 2PROGRAMMINGOccupied andUnoccupied Periods 3ADVANCED SETUP 4ABOUT ADVANCED FEATURESAND OPERATION 4WARRANTY 6Table of ContentsIMPORTANT: FollowInstallation Instructionsbefore proceeding.CAUTION: SET THERMOSTAT TO MODE “OFF”PRIOR TO CHANGING SETTINGS IN SETUP ORRESTORING FACTORY DEFAULTS.Display1 Mode IndicatorsSelects the operation mode of the equipment.HEAT — indicates the heat mode.COOL — indicates the air conditioning mode.AUTO — indicates the system will automati-cally changeover between the heatand cool modes as the temperaturevaries.OFF — indicates the entire system is turnedoff.PROGRAM ON — indicates the stored programis enabled to run.See page 2.2 Clock with Day of the WeekIndicates the current time and day. This clock is alsoused to program the timer periods.See page 2.3 Room Temperature DisplayIndicates the current room temperature.4 Desired Set TemperatureIndicates desired room temperature(s).See page 2.5 Override IndicationIndicates the current program is currently beingoverridden for up to 4 hours.See pages 2and 4.6 Occupied or Unoccupied IndicationIndicates the program number: Occupied 1, 2, 3,or Unoccupied.See page 3.Owner’s ManualPROGRAMMABLE DIGITAL THERMOSTAT53DFST2-NP1 Liquid Crystal Displaywith Thermoglow™ Backlight2 Up/Down Buttons3 Mode Button4 Override Button5 Heat or Cool IndicatorHeat = Red, Cool = Green: AmHEATAUTOWeCOOL234 5112 1513679844101unoccupiedFanProgram OnAmPmC OOLH EATOverrideLockedONOFFAUTOStopStartSetupSuMoTuWeThFrSa123:!