3Table 1 — Thermostat Wiring Terminations*Terminal C may not be used in all applications.†Used on Heat Pump applications only.Set Clock — The Set Clock button allows the user tochange the time and day displayed on the thermostat. Press theSet Clock button. The current time will blink on and off. Pressthe UP ARROW and DOWN ARROW buttons until the cor-rect time is shown. Hold down the buttons to quickly movethrough the time display. Press and hold the Fan button whilepressing the UP or DOWN ARROW buttons to scroll throughby hours. The AM and PM annunciators will automaticallychange. To ensure the schedules are properly followed, makesure that AM or PM is correct for the time chosen. When thecorrect time is shown, press the Mode button to modify the dayof the week. The current day will blink on and off. Press the UPARROW and DOWN ARROW buttons until the correct day isshown. Press the Set Clock button again to exit the Set Timemode.Heat Pump Configuration — To configure the ther-mostat for heat pump operation, Advanced Setup Steps 3 (HeatPump Operation) and 4 (Reversing Valve Polarity) must beconfigured correctly. See the Configure Advanced Setup sec-tion for information on configuring these options.NOTE: Some large commercial rooftop heat pump units(50HJQ,TJQ,EJQ) must be configured with Advanced SetupStep 3 (Heat Pump Operation) set to OFF. Refer to the baseunit instructions for more information.Configure Advanced Setup — To enter into the ad-vanced setup screens of the thermostat, press the Mode andProgram buttons at the same time. The Advanced Setup Stepnumber is shown in the top right corner of the thermostatscreen. Use the Mode button to advance through the steps.There are 18 Advanced Setup Steps. See Table 2. Press the Pro-gram button at any time to exit the Advanced Setup mode.NOTE: Advanced Setup Steps 1 and 2 are configured with theSet Clock button, and are not accessed through the advancedsetup screens.Table 2 — Advanced Setup ConfigurationLEGEND*Accessed and configured through the Set Clock button.EXISTINGWIREDESIGNATION FUNCTION TERMINALCONNECTIONG or F Fan GY1, Y, or C Cooling Y1W1, W, or H Heating W1/O/BRh, R, M, Vr, or A Power (24 v) RC Common C*O/B Reversing Valve W1/O/B†Y2 Second Stage Cooling Y2W2 Second Stage Heating W2RS+5 Remote Sensor (5 vdc) RS+5RS Remote Sensor Signal RS1RS G Remote Sensor Ground RS GNDCK1 Dry Contact Switch CK1CK2 Dry Contact Ground CK2STEP DESCRIPTION RANGE DEFAULT1* Time of Day 12:00 AM -11:59 PM 12:00 AM2* Day of the Week Sunday throughSaturday Monday3 Heat Pump Off/On Off4 Reversing ValvePolarity O/B O5 Electric Heat Off/On Off6 Deadband 1 - 6 F 2 F7 Forced MinimumTemperature Difference 0 - 6 F 2 F8 Cycles per Hour d, d1, 2 - 6 69 Fan Purge Timer 0:00 - 3:00 0:0010 Thermoglow™ Backlight Off/On On11 Economizer Output NO/NC NO12 Reset ServiceFilter Icon — —13 Service FilterRun Time 0-1950 hrs 500 hrs14 Soft Start 0 - 99 015 Temperature Units F/C F16 Security Level 0 - 3 017 Maximum AllowableHeat Set Point 35 - 99 F 80 F18 Minimum AllowableCooling Set Point 35 - 99 F 65 FNC — Normally ClosedNO — Normally OpenW2TYPICALUNITLCGY1EOW1RY224 VAC COMMONFAN RELAYCOMPRESSOR RELAY1st STAGE HEAT CIRCUIT24 VAC RETURN2nd STAGE HEAT CIRCUITW2 Y2 R W1 Y1 G CTHERMOSTATBOW2TYPICALUNITLCGY1EOW1RY224 VAC COMMONFAN RELAYCOMPRESSOR RELAY1st STAGE HEAT CIRCUIT24 VAC RETURN2nd STAGE COMPRESSOR RELAY2nd STAGE HEAT CIRCUITW2 Y2 R W1 Y1 G CTHERMOSTATBOFig. 3 — Typical Wiring(Single-Stage Cooling and Two-Stage Heat Units)Fig. 4 — Typical Wiring(Two-Stage Cooling and Two-Stage Heat Units)1204→→