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Programmable or Non-ProgrammableThermostat4When the very simplest operation is desired, this thermostatmay be configured to be non-programmable, with or withoutAuto-Changeover. Follow the step below.If ‘NO’ is selected, the thermostat will lockout the Program On screen;only the Off, Heat, Cool, and Auto screens may be accessed bypressing the MODE button.Select ‘YES’ if you would like your thermostat to be programmable,then the Program mode will be accessible through the use of theMODE button.MODEPROGRAMPress the MODE button. While holdingthe MODE, press the PROGRAMbutton to enter Setup screens.Y ESYESProgram On SetupSelect Yes if you would likethe thermostat to be programmable or No for non-programmable.Note: Press the MODEbutton momentarilyto move through thesetup screens. Pressand hold the MODEbutton to move backwards through thesetup screens.1PressNOPROGRAMPress the PROGRAM button to leave the Setup screens. If no buttons arepressed, the display will leave the setup screens after 30 seconds.Page 4.2

Manual or Auto-ChangeoverThermostatWhen the very simplest operation is desired, this thermostat maybe configured to be a manual heat and cool thermostat, with orwithout time period programmability. Follow the step below.4The thermostat may be programmed to function as a Heat Only orCool Only thermostat by selecting ‘NO’ in the setup screen below.This will lockout the Auto-Changeover screen and only allow the Off,Heat, Cool, and Program On screens to be accessed.MODEPROGRAMMODEPress the MODE button. While holdingthe MODE, press the PROGRAMbutton to enter Setup screens.Press the MODE button repeatedlyuntil this setup screen appears.YESSelect Yes if you wouldlike the thermostat tobe Auto-Changeover orNo for a Heat Only andCool Only Thermostat.Y ESSetupNote: Press the MODEbutton momentarilyto move through thesetup screens. Pressand hold the MODEbutton to move backwards through thesetup screens.2AUTOPressNOPROGRAMPress the PROGRAM button to leave the Setup screens. If no buttons arepressed, the display will leave the setup screens after 30 seconds.Page 4.3

Operating Mode when the Thermostatis Configured to be:4NON-PROGRAMMABLE WITH MANUAL CHANGEOVER - If thethermostat is configured to be a non-programmable thermostat withManual Changeover, the following screens will be available bypressing the MODE button.Select the Mode by Pressing the MODE ButtonHeating OnlyThe HEAT setting indicates thetemperature the room has toreach before the furnace willturn on to heat the room.12:00 PmSu70 68HEATPressMODE12:00Cooling OnlySuThe COOL setting indicates thetemperature the room has toreach before the air conditionerwill turn on to cool the room.76CPmOOL70PressMODEOffOFF indicates both heatingand air conditioningsystems are turned off.12:00 PmSuOFF70Page 4.4

Operating Mode when the Thermostatis Configured to be:NON-PROGRAMMABLE WITH AUTO-CHANGEOVER - If thethermostat is configured to be a non-programmable thermostatwith Auto-Changeover, the following screens will be available bypressing the MODE button4Select the Mode by Pressing the MODE ButtonHeating OnlyThe HEAT setting indicates thetemperature the room has toreach before the furnace willturn on to heat the room.12:00 PmSu70 68HEATPressMODECooling OnlyThe COOL setting indicates thetemperature the room has toreach before the air conditionerwill turn on to cool the room.Heating or CoolingAUTO will automatically selectheat or cool based on roomtemperature demand.OffOFF indicates both heatingand air conditioningsystems are turned off.12:00 Pm76CSuOOL70PressMODE12:00 Pm76CSuOOLAUTO70 68HEAT12:00 PmSuOFFPressMODE70Page 4.5

Operating Mode when the Thermostatis Configured to be:PROGRAMMABLE WITH MANUAL CHANGEOVER - If the thermostat isconfigured to be a programmable thermostat with Manual Changeover, the4 following screens will be available by pressing the MODE button.Select the Mode by Pressing the MODE Button12:00 PmHeating OnlyThe HEAT setting indicates thetemperature the room has toreach before the furnace willturn on to heat the room.Su70 68HEATCooling OnlyThe COOL setting indicates thetemperature the room has toreach before the air conditionerwill turn on to cool the room.Time Schedulefor HeatingThe HEAT Program On settingwill activate the time periodprogram for the heatingsetpoint ONLY (occupied orunoccupied periods).12:00 Pm76CSuOOL70PressMODE12:00 Pm Program OnSuoccupied70 68HEATTime Schedule12:00 Pm Program Onfor CoolingSuThe COOL Program On settingwill activate the time periodprogram for the coolingoccupiedsetpoint ONLY (occupied orunoccupied periods).7012:00 PmOffOFF indicates both heatingand air conditioningsystems are turned off.PressMODESuOFF70Page 4.6PressMODE76COOLPressMODE

Operating Mode when the Thermostatis Configured to be:PROGRAMMABLE WITH Auto-Changeover - If the thermostat isconfigured to be a programmable thermostat with Auto-Changeover,the following screens will be available by pressing the MODE button.4Select the Mode by Pressing the MODE Button12:00 PmHeating OnlyThe HEAT setting indicates thetemperature the room has toreach before the furnace willturn on to heat the room.SuCooling OnlyThe COOL setting indicates thetemperature the room has toreach before the air conditionerwill turn on to cool the room.Heating or CoolingAUTO will automatically selectheat or cool based on roomtemperature demand.Time Schedule forHeating or CoolingProgram On will activate thetime period program for theheating and coolingsetpoints. (occupied orunoccupied periods)70 68HEAT12:00 Pm76CSuOOL7012:00 PmPressMODE76CSuOOLAUTO70 687670 68HEAT12:00 Pm Program OnSuPressMODECOOLoccupiedHEAT12:00 PmOffOFF indicates both heatingand air conditioningsystems are turned off.PressMODESuOFFPressMODE70Page 4.7

Selecting Your Desired Temperature (adjusting setpoints)AUTO OR PROGRAM MODEPressing the UP or DOWN buttons in Auto or Programmodes will adjust both the heat and cool set temperaturessimultaneously. For more information on this see page 13.2.412:00 Pm76CSuAdjust the desiredset temperature with theOOLAUTO70 68HEATbuttons.HEAT OR COOL MODEPressing the UP or DOWN buttons in Heat or Cool modes willadjust only the heat or cool set temperature.12:00 Pm76CSuAdjust the desiredset temperature with theOOL70buttons.Note: Due to the Random Start feature (see page 16.4) there will be a 2 to 30second delay before heating or cooling may be energized. This delayhelps to keep multiple thermostats from energizing their outputs atthe same time after a power outage.Page 4.8

SECTION 5Viewing the Temperature and Humidity Sensors5Section 5 Contents:Viewing the OutdoorTemperature.5.2Viewing the IndoorHumidity.5.3Page 5.1

Viewing the Outdoor TemperatureRequires an outdoor sensor (optional accessory) to be installed (seepage 15.2 for wiring instructions). To read the temperature from theoutdoor sensor, press the PROGRAM and HOLIDAY buttons. Thedisplay will then show the current outdoor temperature along with the5 highest and lowest temperatures for the day.PROGRAM HOLIDAYOUTDOORPress the PROGRAMbutton. While holdingPROGRAM, press theHOLIDAY button to viewthe Outdoor temperature.The highest and lowesttemperatures for the daywill be displayed alongwith the current outdoortemperature.This reading is from thesensor connected to RS2.Press the PROGRAMbutton. While holdingPROGRAM, press theHOLIDAY button to leavethe Outdoor temperaturescreen.HI92Outside83 68LOHigh temperaturefor the day.Current outdoortemperature.Low temperaturefor the day.PROGRAM HOLIDAYOUTDOORNote: If no sensors are connected 2 dashes [- -] will appear.Page 5.2

Viewing the Indoor HumidityRequires the Humidity Module (optional accessory) to beinstalled. To display the current humidity at the thermostat,press the HUMIDITY button. The display will then show thecurrent indoor humidity along with the humidification setpoint(Section 9).5Note: The humidity reading will not appear unless the HumidityModule has been installed. If the Humidity Module has not beeninstalled dashes will appear in place of the humidity reading.HUMIDITYTo view the indoor humidityreading, press theHUMIDITY buttonCurrent Room HumiditySetup40Humidify10 rhPressHUMIDITYPress the HUMIDITY buttonagain to return the displayto normal operation.NOTE: Due to variations in environmental conditions, it is not always possibleto achieve the desired humidification or dehumidification setpoint.Page 5.3

SECTION 6Programming the Daily ScheduleSection 6 Contents:6Programming a DailySchedule.6.2Overriding the DailySchedule.6.6Page 6.1

Programming a Daily SchedulePressPROGRAMPress the PROGRAM button to enter time period programming.Use the Programming Worksheet on the back coverto help with this section.Select the maximum # ofoccupied periods to beused on any one day.Typically most installationsuse only Occupied 1.(1,2 or 3)6occupied1PressMODEAdjust the coolingsetpoint for Occupied 1.(35 - 99, OF )74COOLoccupied1PressMODEAdjust the heatingsetpoint for Occupied 1.(OF, 35 - 99 )Adjust the coolingsetpoint for unoccupiedperiods.(35 - 99, OF ssMODEPage 6.2Continued

Adjust the heating setpoint for Unoccupiedperiods.85COOLHEATUnoccupied55(OF, 35 - 99 )PressMODE6MoSelect the day forOccupied 1.(Mo - Su)occupied1PressMODE7:00 AmMoAdjust the start timefor Occupied 1.Startoccupied1PressMODE6:00 PmMoAdjust the stop timefor Occupied 1.Stopoccupied1PressMODEOnMoSelect Occupied 1 to runon this day (On), or not torun on this day (Off).OffONoccupied1PressMODEPage 6.3Continued

The copy command becomes available after the maximum # ofoccupied periods are programmed in a day. This example usesonly one occupied period.YesSelect Yes to copy theprevious day’s programto this day.NOTuCO PYNoIf Yes is selected:Selecting Yes, then pressing mode will copy theprevious day’s program. If yes is selected again,or each time, this routine will repeat.PressMODEIf No is selected:6PressMODETuSelect the dayfor Occupied 1.(Tu - Mo)occupied1PressMODE7:00 AmTuAdjust the start timefor Occupied 1.Startoccupied1PressMODE6:00 PmTuAdjust the stop timefor Occupied 1.Stopoccupied1PressMODEContinuedPage 6.4

OnTuSelect Occupied 1 to runon this day (On), or not torun on this day (Off).OffNOYesSelect Yes to copythe previous day’sprogram to this day.6NoPressMODEONoccupied1If Yes is selected:WeCO PYSelecting Yes, then pressing mode will copy theprevious day’s program. If yes is selected eachtime, this routine will repeat.If No is selected:PressMODEIf No is selected, as in previous steps, flashing prompts will appear to input startand stop times for Occupied 1. If more than one occupied period was selected inthe first programming step (page 6.2), then the cool and heat setpoints, and startand stop times for each additional occupied period will be prompted.PressPROGRAMAfter programming for all seven days is complete, press the PROGRAM button toleave the Setup screens. If no buttons are pressed, the display will leave the setupscreens after 30 seconds.PROGRAMMING TIPSIf only the Occupied 1 period is selected in the first programming step ( page 6.2), Occupied 2& 3 programming steps are skipped. Further , if Occupied 2 is selected, Occupied 3 programming steps are skipped.Heat & Cool setpoints for Occupied 1 are the same for every day of the week. If desired,Heat & Cool setpoints for Occupied 2 & 3 can be adjusted differently for each day of the week.If the start time is set later in the day than the stop time, the program will run from thestart time to midnight and from midnight to the stop time on the same day. For example: 9pmstart, 8am stop, on Monday. In this example the program will run from 12am Monday to 8amMonday and again from 9pm Monday to 12am Tuesday.Unoccupied Operation: The unoccupied settings take effect at all times when: (1) the program is on and (2) the current time is outside a preset occupied period. For this reason startand stop times are not necessary for unoccupied time periods.If the same start and stop times are programmed for an occupied period, then it will run 24 hours.If one occupied period starts and stops within another occupied period the lower occupied #has priority. For example: If Occupied 3 is programmed to be on 24 hours, and Occupied 2 isprogrammed to run that day, then the Occupied 2 setting will take over for Occupied 3between Occupied 2 start and stop times.Page 6.5

Overriding the Daily ScheduleThe OVERRIDE button may be used to interrupt the normal timeschedule programming of the thermostat. Override may only be usedwhen the thermostat is running the time schedule, in Program Onmode.Unoccupied Operation - During programmed, unoccupiedperiods, pressing the OVERRIDE button will temporarily 6force the thermostat into Occupied 1 comfort settings for 30minutes. The remaining Override time will alternate with theclock (refer to the second display below). The Override timercan be set up to a maximum of four (4:00) hours, in incrementsof 30 minutes. If the timer has been set for the maximum time,the next press of the OVERRIDE button will reset the timer,returning the thermostat to the correct time period program forthe day.Occupied Operation - During programmed, occupied periods, apress of the OVERRIDE button will force the thermostat into anunoccupied period for the remainder of the day. During thisforced unoccupied period the OVERRIDE button will operate asdescribed above.7:56 Pm Program OnWe85COOLUnoccupied65 55HEAT7:56 Pm:30 Pm Program OnWe74COOLoccupied1OverridePressOVERRIDE65 72HEATPage 6.6

SECTION 7Programming the Fan OperationSection 7 Contents:7Using the Fan Button.7.2Smart Fan Operation.7.2Setting the Fan-Off TimeDelay.7.3Fan Purge Operation.7.4Page 7.1

Using the Fan ButtonWhen the fan is set for automatic operation it will energize any timethere is a call for heating or cooling, otherwise the fan will remain off.Pressing the FAN button will energize the fan and display the FanOnicon on the thermostat display. To operate the fan in the automaticmode, press the FAN button again and the FanOn icon will disappear.PressFAN12:00 AmSu7Fan On indicates constant fan operation.If Fan On is selected the fan will runcontinuously at all times, except in Off,and will only run if there is a heating orcooling demand in Unoccupied periods.Pressing the FAN button toggles thisfeature on or off.76COOLAUTO70 68HEATFanOnSmart Fan OperationThis feature allows the fan to run continuously during Occupied 1, 2or 3 and automatically de-energize during Unoccupied, except whennecessary to heat or cool. To use this feature, place the thermostat inthe Program On mode. Next, press the FAN button to display theFanOn icon (see below).12:00 Am76CSuOOLoccupied1FanOn70 68Page 7.2HEAT

Setting the Fan-Off Time DelayTo increase the cooling efficiency of your unit, the thermostat may beprogrammed to continue running the fan after a call for cooling hasbeen satisfied. This delay may be set for 30, 60, or 90 seconds. Ifthe Fan Off Delay is set for zero seconds, the fan will not energizeafter a call for cooling has been satisfied.7MODEPROGRAMMODEPress the MODE button. While holdingthe MODE, press the PROGRAMbutton to enter Setup screens.Note: Press the MODEbutton momentarilyto move through thesetup screens. Pressand hold the MODEbutton to move backwards through thesetup screens.Press the MODE button repeatedlyuntil this setup screen appears.:00Set the Fan Off Delayto 0, 30, 60, or 90seconds.Setup3FanOnPressPROGRAMPress the PROGRAM button to leave the Setup screens. If no buttons arepressed, the display will leave the setup screens after 30 seconds.Page 7.3

Fan Purge OperationWhen this feature is activated, the fan will turn on during anunoccupied period at a preset amount of time prior to Occupied 1.This preoccupancy fan purge timer may be set from zero to threehours, in 15 minute increments. Zero means this feature is turned off.7MODEPROGRAMMODEPress the MODE button. While holdingthe MODE, press the PROGRAMbutton to enter Setup screens.Press the MODE button repeatedlyuntil this setup screen appears.Adjust the preoccupancyfan purge timer.0 - 3 hours.0:00 offSetup0:00Note: Press the MODEbutton momentarilyto move through thesetup screens. Pressand hold the MODEbutton to move backwards through thesetup screens.4PUPress the PROGRAM button to leave the Setup screens. If no buttons arepressed, the display will leave the setup screens after 30 seconds.Page 7.4PressPROGRAM

SECTION 8Thermostat Display OptionsSection 8 Contents:8Turning On/Off theBacklight.8.2Programming the Thermostatto Display Temperature inFahrenheit or Celsius.8.2Locking/Unlocking theKeypad.8.3Programming a SecurityLevel.8.4Page 8.1

Turning On/Off the BacklightMODEPROGRAMMODEPress the MODE button. While holdingthe MODE, press the PROGRAMbutton to enter Setup screens.Press the MODE button repeatedlyuntil this setup screen appears.Note: Press the MODEbutton momentarilyto move through thesetup screens. Pressand hold the MODEbutton to move backwards through thesetup screens.8SetupSelect backlight operation:AUTO - Light from 6pm to6am nightly.ON - Light continuously.OFF - Light for 8 secondsafter a button press.AUTO5L1PressMODEProgramming the Thermostat to DisplayTemperature in Fahrenheit or CelsiusSetupCSelect thermostatoperation in degreesFahrenheit or Celsius.6FFPressPROGRAMPress the PROGRAM button to leave the Setup screens. If no buttons arepressed, the display will leave the setup screens after 30 seconds.Page 8.2

Locking/Unlocking the KeypadTo preve

Use with most Air Conditioning & Heating Systems including: 1 or 2 Stage Electric Cooling & 3 Stage Gas Heating, Heat Pump, Electric or Hydronic Heat. HEAT COOL HEAT PUMP Digital Thermostat PROGRAMMABLE up to 3-heat & 2-cool 7-DAY THERMOSTAT T2900 commercial Control up to 3 Heat & 2 Cool Stages 3 Configurable Outputs Timers & Deadbands Backlit .