Venstar T1045 Owner's Manual Page 1

Venstar Inc. 05/08Digital ThermostatDigital ThermostatresidentialT1045THERMOSTATOWNER’S MANUALOWNER’S MANUALStages: 2-Heat, 1-CoolBattery or Sys

Time Period ProgrammingPROGRAM SWITCHPage 10OverviewSlide the Program Switch to the SET position. The blinking icon(s) on the display may be chang

Page 11Weekday ProgrammingNext PageTime Period ProgrammingMTuWThFAMMorning6:00:8SETMTuWThFAMMorningCOOL6:00:SETMTuWThFAMMorningHEAT6:00:MTuWThFAMDay8:

Next PageWeekday ProgrammingTime Period ProgrammingSETMTuWThFAMDayCOOL8:00:SETMTuWThFAMDayHEAT8:00:MTuWThFPMEvening6:00:SETMTuWThFPMEveningCOOL6:00:Us

Next PageWeekday ProgrammingTime Period ProgrammingMTuWThFPMNightI0:00:SETMTuWThFPMEveningHEAT6:00:SETMTuWThFPMNightI0:00:HEATSETMTuWThFPMNightCOOLI0:

Next PageWeekend ProgrammingTime Period ProgrammingAMMorning6:00:SaSu8SETAMMorningCOOL6:00:SaSuSETAMMorningHEAT6:00:SaSuAMDay8:00:SaSuUse these button

Next PageWeekend ProgrammingTime Period Programming8 00AMDay SET62 HEATSaSu COOLSET786 00PMEvening SaSuSETPMEveningCOOL6:00:SaSuPMEvening6

Weekend ProgrammingTime Period ProgrammingSETPMNightI0:00:HEATSaSuSETPMNightCOOLI0:00:SaSuPMNightI0:00:SaSuSETPMEveningHEAT6:00:SaSuUse these buttons

Time Period ProgrammingAfter you have completed setting the time period programming, you have two options:1) Run the time period program by sliding th

Advanced SetupThis is normally done by the installer at initial installation.Continued* ON is only available if the thermostat is system powered.Ent

Page 19About Advanced Features & Operation ICON - The icon will appear after a set number of hours for fan r

Page 2ContentsPage #Time Period ProgrammingAdvanced SetupBattery ReplacementOverviewWeekday ProgrammingWeekend ProgrammingNormal OperationManual Opera

Page 208888SETMTuWThFSaSuAMPMMorningEveningDayNightAUXHEATCOOLI2:00:FILTER8888SETMTuWThFSaSuAMPMMorningEveningDayNightAUXHEATCOOLI2:00:FILTERFactory D

CalibrationCAUTIONEnter advanced setup by sliding the Program Switch to SET. When the clock is flashing, press the NEXT button for 5 seconds. Do not

SuPMI2:00:Page 22Battery ReplacementOWNER'S MANUALT1045The batteries must be replaced immediately when the thermostatdisplays the low battery ico

Page 23WarrantyOne-Year Warranty - This Product is warranted to be free from defects in material and workmanship. If it appears within

Programming Worksheet see page 10Printed on recycled paper.P/N 88-636 Rev. 3DAYPERIODHEATSTART TIMECOOLMorningMorni

The two Alkaline “AA” batteries must be replaced at least once every 12 months to ensure proper operation. The Low Battery icon (fig. 1) will appear

SuPMI2:00:Location of ControlsPage 4NEXT BUTTONFor programmingHow to Use: The NEXTbutton is used to ad-vance from one step to the next in

Page 5Display8888SETMTuWThFSaSuAMPMMorningEveningDayNightAUXHEATCOOLI2:00:FILTERClock Display.Desired set temperature.Current room temperature.Indicat

SuPMI2:00:Page 6Normal OperationManual Operation (Program Switch OFF)Select Cool or Heat with the Mode Switch.Normally leave the fan switched to Auto.

SuPMI2:00:SETHEATNormal OperationPage 7Programmed Operation Select Cool or Heat with the Mode Switch.Normally leave the fan switched to Auto.In Fan Au

SuPMI2:00:SETHEATPage 8Aux HeatEmergency - Disables all compressor functions and energizes only Aux Heat to satisfy the heat d

Page 9Clock SetUse these buttons toadjust the current time.Use these buttons toadjust the current day.PM6:00:SuSetting the time & day are the firs