Manual Install Slimline P374-1900 Rev. 1

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SECTION 7Calibrating the Thermostat SensorsTOTALINEUnder normal circumstances it will not be necessary to adjust thecalibration of the temperature and humidity sensors. If calibration isrequired, please contact a trained HVAC technician to correctlyperform the following procedure.MODEMODEFANPlace the thermostat in theOFF mode.Press and hold the MODEbutton. While holding theMODE button, press and holdthe FAN button for 5 seconds.All icons will appear on thedisplay.I2:00SuOFFI8:88 AmPmSuMoTuWeThFrSaService FilterPan UV LightAUTOOFFONMorningDayNightEveningFanOnPm72Program OnStartStopDeHumidifyCOOLOutsideVacationAUXHEATI88SetupH I88L O887PRESSTWICETHERMOSTAT SENSORPress the UP and DOWN buttonsat the same time twice. Thethermostat temperature will bedisplayed and may be calibratedusing the UP or DOWN buttons.CALIBRATEREMOTE SENSORMODEPress the MODE button once. Theremote sensor temperature will bedisplayed and may be calibrated using theUP or DOWN buttons. If a remote sensoris not installed, only dashes will appear.OutsideCALIBRATEHUMIDITY SENSORMODEPress the MODE button once. Therelative humidity at the thermostat will bedisplayed and may be calibrated using theUP or DOWN buttons.CALIBRATEAfter calibration is complete, press the MODE button once to return tonormal operation.Page 7.1
SECTION 8TroubleShootingTOTALINESYMPTOM: The air conditioning does not attempt toturn on.CAUSE: The compressor timer lockout may prevent theair conditioner from turning on for a period of time.REMEDY: Consult the Owner's Manual in the Setupsection to defeat the cycles per hour andcompressor timeguard.8SYMPTOM: The display is blank.CAUSE: Lack of proper power.REMEDY: Make sure power is turned on to the furnaceand that you have 24vac between R & W. If C isused, 24vac between R & C.SYMPTOM: The air conditioning does not attempt toturn on.CAUSE: The cooling setpoint is set too high.REMEDY: Consult the Owner's Manual in the Setupsection to lower the cooling setpoint limit.SYMPTOM: The heating does not attempt to turn on.CAUSE: The heating setpoint is set too low.REMEDY: Consult the Owner's Manual in the Setupsection to raise the heating setpoint limit.Page 8.1
Page 1 and 2: INSTALLATIONINSTRUCTIONSRESIDENTIAL
Page 4 and 5: Table of ContentsPreparationRemove
Page 6 and 7: SECTION 2Remove & Replace the Old T
Page 8 and 9: W3PROGHUMDEHUMMISC3 MISC2 MISC1 ONL
Page 10 and 11: TOTALINEExplanation of Jumper Setti
Page 12 and 13: SECTION 4Wire ConnectionsTOTALINEIf
Page 14 and 15: W3PROGHUMDEHUMW1Y1GMISC2CK1CKGNDRCY
Page 20 and 21: TOTALINEWired Remote Sensor and Tim

Manual Install Slimline P374-1900 Rev. 1

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