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351579-YTS-B-0608thermostat. If a thermostat is installed on the system, theseinputs are connected to the thermostat interface board just asare the cooling/heating calls. These inputs are connectedthrough the Tstat Interface board directly to the respectivebinary inputs of the Controller. These signals are, however,each loaded with a resistor to maintain voltage levels and toprevent “floating” of signals. Thermostat wiring is typically notshielded and may have induced voltages that could causeerrant signal readings by the controller.FILT - Dirty Filter switch [customer supplied, field installed onfactory-provided harness connections] input to provide a filterstatus to the control. The control will alarm only after 24V hasbeen sensed for ten minutes.GV1-3 - Monitoring that voltage is being supplied to gas valveson optional heat stages.LIM1-3 - Overtemperature inputs from optional heat stages.FSI - Freeze Stat is a customer installed temperature switch onthe FSI input to the controller to tell the control that atemperature has occurred that risks the hot water or steam coil.Y1-4, W1-3 - If a thermostat is installed on the system, theseinputs will take priority over software programmed setpoints andlimits.SD - This terminal set allows attachment of an externalshutdown NC contact. 24VAC power is supplied to the board atSD2; a factory installed jumper passes that power to terminal Rto power the Simplicity Elite board. If an external shutdownsignal is required at a particular installation, remove the jumperand connect the NC shutdown circuit between SD1 and R.position of the guide vane. If the unit has a factory-installedVariable Frequency Drive, the 2 to 10 VDC signal is wired fromVFD+/- output directly to the VFD’s signal input terminals tocontrol fan motor speed.Table 2: Input Signal to Y1 Actuator PositionInput Signal to Y1Actuator Position10 VDC 90 degrees9 788 677 566 455 334 223 112 00 -58VDC over a 90 degree Span = 11.25 degrees/VDCFRVFDSimplicity12FanVFD +VFD -P13-1P14-1P14-2FRWhtBlkTB2185355OUTPUTSAnalog Outputs (AO) - Analog outputs provide a 2-10 VDCsignal to operate controlled devices. The Simplicity ® is currentlyconfigured to use only 2-10 VDC outputs to the VariableFrequency Drive, Inlet Guide Vane, Economizer Damper,Power Exhaust Dampers or VFD, and Heating water valves.Since these outputs are analog, they are continuous between 2and 10 Volts and are proportional to the 0 to 100% driveposition of the device.ECO - Economizer Actuator - The modulating Economizer usesa Johnson Controls M9220GGAYK30 spring-return actuator(PN: 025-30869-000A). This actuator uses a 2-10 VDC signalto drive the dampers open. The actuator drives 95 degreerotation. Note the chart below for a correlation between theinput drive signal at terminal 3 (Y1) of the actuator and thecorresponding output drive position of the damper:VFD - Inlet Guide Vane or VFD - The Inlet Guide Vane uses aJohnson Controls M9220GGAYK30 spring-return actuator. Thisactuator uses the 2-10 VDC signal from VFD+/- terminals todrive the dampers open. The actuator drives 95 degree rotation.Note the chart below for a correlation between the input drivesignal at terminal 3 (Y1) and the corresponding output driveFigure 4: VFD Control WiringEXD - Power Exhaust Damper Vane or VFD - Power ExhaustDamper Actuator is a Johnson Controls M9220GGAYK30. Ituses a full open/ Full Closed scheme and operates a 95 degreerotation. If VFD Power Exhaust is configured, the same signalcontrols the exhaust fan motor drive frequency.HWV - Heating Water Valve - Customer supplied and installed,connect to factory-provided harness.BINARY OUTPUTS (BO)FAN - Fan Start/Stop Relay, VFD “permission” relay FRH1-3 - HEAT STAGES 1 TO 3 [OPTIONAL]C1 through C4 - Cooling Stages 1 through 4CF1 & CF2 - Condenser Fan Banks 1 and 2X - Controller Alarm is field-wired from the thermostat interfaceboard to signify a controller alarm has occurred.8 Johnson Controls Unitary Products
351579-YTS-B-0608Table 3: Simplicity ® Control InputsName Range Resolution Precision DescriptionY1 18 - 30 VAC On - Off +/- .5 VAC Request for the first stage of Cooling (24 VAC sense) Tstat Screw TerminalY2 18 - 30 VAC On - Off +/- .5 VAC Request for the second stage of Cooling (24 VAC sense) Tstat Screw TerminalY3 18 - 30 VAC On - Off +/- .5 VAC Request for the third stage of Cooling (24 VAC sense) Tstat Screw TerminalY4 18 - 30 VAC On - Off +/- .5 VAC Request for the fourth stage of Cooling (24 VAC sense) Tstat Screw TerminalW1 18 - 30 VAC On - Off +/- .5 VAC Request for the first Stage of Heating (24 VAC sense) Tstat Screw TerminalW2 18 - 30 VAC On - Off +/- .5 VAC Request for the second Stage of Heating (24 VAC sense) Tstat Screw TerminalW3 18 - 30 VAC On - Off +/- .5 VAC Request for the third Stage of Heating (24 VAC sense) Tstat Screw TerminalG 18 - 30 VAC On - Off +/- .5 VAC Request for the Fan (24 VAC sense) Tstat Screw TerminalR 18 - 30 VAC - -These terminals are a ¼' Female Faston and a Thermostat Screw terminalconnected to the power supply of the board.C Earth Ground - - These terminals are a ¼' Faston and a Thermostat Screw terminal.OCC 18 - 30 VAC On - Off +/- .5 VAC Occupied input (24 VAC sense) Tstat Screw TerminalSD 18 - 30 VAC - +/- .5 VAC Shut Down input Tstat Screw TerminalPurge 18 - 30 VAC On - Off +/- .5 VAC Building Purge input (24 VAC sense) Tstat Screw TerminalBAS Economizer 2 - 10 VDC Not Read by micro - Input that routes to the Economizer output Two Tstat Screw Terminals +&-HPS1 18 - 30 VAC On - Off +/- .5 VAC High Pressure Switch for Circuit # 1 (24 VAC sense)HPS2 18 - 30 VAC On - Off +/- .5 VAC High Pressure Switch for Circuit # 2 (24 VAC sense)HPS3 18 - 30 VAC On - Off +/- .5 VAC High Pressure Switch for Circuit # 3 (24 VAC sense)HPS4 18 - 30 VAC On - Off +/- .5 VAC High Pressure Switch for Circuit # 4 (24 VAC sense)LPS1 18 - 30 VAC On - Off +/- .5 VAC Low Pressure Switch for Circuit # 1 (24 VAC sense)LPS2 18 - 30 VAC On - Off +/- .5 VAC Low Pressure Switch for Circuit # 2 (24 VAC sense)LPS3 18 - 30 VAC On - Off +/- .5 VAC Low Pressure Switch for Circuit # 3 (24 VAC sense)LPS4 18 - 30 VAC On - Off +/- .5 VAC Low Pressure Switch for Circuit # 4 (24 VAC sense)Limit Switch 1 18 - 30 VAC On - Off +/- .5 VAC High Limit Switch input (24 VAC sense) For Burner section 1Limit Switch 2 18 - 30 VAC On - Off +/- .5 VAC High Limit Switch input (24 VAC sense) For Burner section 2Limit Switch 3 18 - 30 VAC On - Off +/- .5 VAC High Limit Switch input (24 VAC sense) For Burner section 3GV1 18 - 30 VAC On - Off +/- .5 VAC Gas Valve input (24 VAC sense) For Burner section 1GV2 18 - 30 VAC On - Off +/- .5 VAC Gas Valve input (24 VAC sense) For Burner section 2GV3 18 - 30 VAC On - Off +/- .5 VAC Gas Valve input (24 VAC sense) For Burner section 3Test / Reset / Up ON - Off ON - Off - Test / Reset Button and Increment Data InputAddress / Down ON - Off ON - Off - Address Button and Decrement Data InputAlarms / Advance Data ON - Off ON - Off - Alarm Button and Advance Data InputProgram ON - Off ON - Off - Program Button InputReal Time ClockWater Coil Freeze Stat(FSI)Supply Air Temp Sensor(SAT)Outside Air Temp Sensor(OAT)Space Temp Sensor(ST)Return Air Temp Sensor(RAT)Space Setpoint Offset(SSA)Building PressureSensor(BPS)Duct Pressure Sensor(DPS)24 hours, 365 Daysincluding Leap yearand DaylightSavings TimeSeconds - Real Time Clock Chip18 - 30 VAC On - Off +/- .5 VAC Hot Water Freeze Stat (24 VAC sense) two ¼ Fastons-40° - +180° F .1° F-40° - +180° F .1° F-40° - 180 °F+/- 2 °F acrossrange-40° - 180 °F+/- 2 °F acrossrangeThis is a 10KΩ type 3 ThermistorThis is a 10KΩ type 3 Thermistor32° - 100° F .1° F .5° F This is a 10KΩ type 3 Thermistor-40° - +180° F .1° F-40° - 180 °F+/- 2 °F acrossrange0 - 20 KΩ 1 KΩ + and - 250 Ω0 - 5 VDC-.25 - +.25"WC.001 "WC0 - 5 VDC0 - 5 "WC .01 "WC.005 "WC1% Across range.05 "WC 1%across rangeThis is a 10KΩ type 3 Thermistor3 position Mini Screw Terminal shared with Space Temp The common terminalin the center is common for both the Space Temp and Setpoint Offset.0 - 5 volt input0 - 5 volt inputAPS (APS) 18 - 30 VAC On - Off +/- .5 VAC Air Proving Switch (24 VAC sense)Fan Overload (FOVR) 18 - 30 VAC On - Off +/- .5 VAC Fan Overload Switch (24 VAC sense)CV / VAV Input 0 - 20 KΩ 1Ω + / - 5 Ω Resistive Input 0 - 5.5K = CV 10K - 20K = VAVJohnson Controls Unitary Products 9
Page 1 and 2: 351579-YTS-B-0608TECHNICAL APPLICAT
Page 3 and 4: 351579-YTS-B-0608THE MILLENNIUM ®
Page 5 and 6: 351579-YTS-B-0608EPROM - This is
Page 7: 351579-YTS-B-0608ANALOG INPUTS (AI)
Page 11 and 12: 351579-YTS-B-0608SIMPLICITY ® PROG
Page 13 and 14: 351579-YTS-B-0608be turned off by t
Page 15 and 16: 351579-YTS-B-0608Once the Unoccupie
Page 17 and 18: 351579-YTS-B-0608Table 5: Settable
Page 19 and 20: 351579-YTS-B-06082. Mechanical cool
Page 21 and 22: 351579-YTS-B-0608determined by the
Page 23 and 24: 351579-YTS-B-0608Pressure Switch -
Page 25 and 26: 351579-YTS-B-0608Table 9: Modulatin
Page 27 and 28: 351579-YTS-B-0608As the ambient tem
Page 29 and 30: 351579-YTS-B-0608mizer damper and u
Page 31 and 32: 351579-YTS-B-0608TYPES OF SPACE SEN
Page 33 and 34: 351579-YTS-B-0608UNOCCUPIED HEATING
Page 35 and 36: 351579-YTS-B-0608Table 12: Holiday
Page 37 and 38: 351579-YTS-B-0608The RAH sensor, if
Page 39 and 40: 351579-YTS-B-0608for economizer loa
Page 41 and 42: 351579-YTS-B-0608time 60 seconds (N
Page 43 and 44: 351579-YTS-B-0608TROUBLESHOOTING A

analog to digital converter . . . . . . . . . . . . . . . 4 - UPGNet

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