ANALOG INPUTS – Pressure | York YCAL0080SC, YCAL0014SC instruction

ANALOG INPUTS – Pressure

ANALOG INPUTS – Pressure

Refer to the unit wiring diagram. Pressure inputs are connected to the microboard on plugs J4 and J7. These analog inputs represent varying dc signals correspond- ing to varying pressures. All voltages are in reference to the unit case (ground).

System 1 discharge and suction pressures will be con- nected to J4 of the microboard. System 2 discharge and suction pressure transducers will be connected to J7 of the microboard.

The discharge transducers are optional on all units. If the discharge transducers are not installed, no connec- tions are made to the microboard and the discharge pressure readout on the display would be zero.

The suction pressure transducers are optional on YCAL0014 - YCAL0060. If the suction transducers are not installed, a mechanical low pressure switch will be installed in its place, and the suction pressure readout on the display will be 0 PSIG when the LP switch is open, and 200 PSIG (13.79 BARG) when the LP switch is closed.

The discharge transducers have a range from 0 to 400 PSIG. The output will be linear from .5VDC to 4.5VDC over the 400 PSIG (27.5 BARG) range. Following is the formula that can be used to verify the voltage output of the transducer. All voltage reading are in reference to ground (unit case).

FORM 150.62-NM1

V = (Pressure in PSIG x .01) + .5

or

V = (Pressure in BARG x .145) + .5

where V = dc voltage output

Pressure = pressure sensed by transducer

The microboard connections for the Discharge Trans- ducers:

	System 1 Discharge Transducer
	J4-7 = +5VDC regulated supply to transducer.
	J4-12 = VDC input signal to the microboard. See the
		formula above for voltage readings that
		correspond to specific discharge pressures.
	J4-8 =	+5VDC return
	J4-9 = drain (shield connection = 0VDC)
	System 2 Discharge Transducer
	J7-7 = +5VDC regulated supply to transducer.
	J7-12 = VDC input signal to the microboard. See the
		formula above for voltage readings that
		correspond to specific discharge pressures.
	J7-8 =	+5VDC return
	J7-8 =	+5VDC return	3
	J7-9 =	drain (shield connection = 0VDC)	3

YORK INTERNATIONAL

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York YCAL0080SC, YCAL0014SC manual ANALOG INPUTS – Pressure

Contents

YCAL0014SC - YCAL0080SC AIR-COOLEDLIQUID CHILLERS HERMETIC SCROLLMILLENNIUM Standard, Glycol & Metric Models, Combined READ BEFORE PROCEEDING GENERAL SAFETY GUIDELINESSAFETY SYMBOLS YORK INTERNATIONAL CHANGEABILITY OF THIS DOCUMENTFORM 150.62-NM1 SECTION TABLE OF CONTENTS AND TABLESSECTION SECTION TABLES TABLES AND FIGURES FIGURES TABLES/FIGURESTABLES BASIC MODEL NUMBER PRODUCT IDENTIFICATION NUMBER PINYCAL0080SC46xAA OPTIONS MODEL NUMBER PRODUCTIDENTIFICATION NUMBER AIR COOLED CONDENSERS REFRIGERANT FLOW DIAGRAMFIG. 1 – REFRIGERANT FLOW DIAGRAM Installation INSTALLATIONINSTALLATION CHECK LIST HANDLING GROUND LEVEL LOCATIONS FOUNDATIONROOFTOP LOCATIONS NOISE SENSITIVE LOCATIONS WIRING Installation FLOW SWITCH INPUT ALARM STATUS CONTACTSEVAPORATOR PUMP START CONTACTS SYSTEM RUN CONTACTS Power Panel STANDARD POWER SUPPLY WIRING – 0014 -Installation Circuit # 1 *Circuit # Field Unit Power Supply Flow SwitchControl Panel CTB2 N-FDISC SW OR CIRC BKR 0014 - OPTIONAL SINGLE-POINTPOWER SUPPLY WIRINGInstallation FIG. 4 – OPTIONAL SINGLE POINT POWER WIRING CHILLED LIQUID FREEZING CONTROL WIRINGCTB1 NOTES ELECTRICAL NOTESInstallation Factory Wiring 17= 28= 40= 46= 58= LEGEND: Field WiringELECTRICAL NOTES VOLTAGE CODE TABLE 1 - MICROPANEL POWER SUPPLY ELECTRICAL DATAInstallation TABLE 2 – STANDARD SINGLE POINT POWER ELECTRICAL DATA – STANDARD SINGLE POINT POWERYCAL0014SC - YCAL0034SC YCAL0040SC - YCAL0080SC ELECTRICAL DATA – STANDARD DUAL POINT POWERInstallation TABLE 3 – STANDARD DUAL POINT POWER MIN N/F ELECTRICAL DATA – STANDARD DUAL POINT POWERYCAL0040SC - YCAL0080SC Installation ELECTRICAL DATA – OPTIONAL SINGLE POINT POWERTABLE 4 – OPTIONAL SINGLE POINT POWER YCAL0014SC - YCAL0034SC SYSTEM #1 COMPRESSOR & FAN ELECTRICAL DATA – OPTIONAL SINGLE POINT POWERYCAL0014SC - YCAL0034SC ELECTRICAL DATA – OPTIONAL SINGLE POINT POWER YCAL0040SC - YCAL0060SCInstallation TABLE 5 - OPTIONAL SINGLE POINT POWER COMPR. #1 ELECTRICAL DATA – OPTIONAL SINGLE POINT POWERYCAL0040SC - YCAL0060SC ELECTRICAL DATA – OPTIONAL SINGLE POINT POWER YCAL0064SC - YCAL0080SCInstallation TABLE 6 – OPTIONAL SINGLE POINT POWER FORM 150.62-NM1 ELECTRICAL DATA – OPTIONAL SINGLE POINT POWERYCAL0064SC - YCAL0080SC Installation OPERATIONAL LIMITATIONS ENGLISHVOLTAGE LIMITATIONS TABLE 8 – VOLTAGES Cooler Pressure Drop YCAL0030 OPERATIONAL LIMITATIONS ENGLISHCooler Pressure Drop YCAL0034 VOLTAGE LIMITATIONS OPERATIONAL LIMITATIONS METRIC Cooler Press. Drop YCAL0030 OPERATIONAL LIMITATIONS METRICCooler Pressure Drop YCAL0034 TABLE 13 – COOLER PRESSURE DROP CURVES TABLE 15 - PHYSICAL DATA ENGLISH PHYSICAL DATA ENGLISH YCAL0014SC - YCAL0080SCInstallation YCAL0014SC - YCAL0080SC PHYSICAL DATA ENGLISH TABLE 16 – PHYSICAL DATA METRIC PHYSICAL DATA METRIC YCAL0014SC - YCAL0080SCInstallation YCAL0014SC - YCAL0080SC PHYSICAL DATA METRIC Installation DIMENSIONS ENGLISH YCAL0014SC - YCAL0020SC TABLE 17 – WEIGHT DISTRIBUTION/CENTER OF GRAVITY DIMENSIONS ENGLISH YCAL0014SC - YCAL0020SC Installation DIMENSIONS ENGLISH YCAL0024SC - YCAL0034SCRefers to Model YCAL0030SC Refers to Model YCAL0034SC TABLE 18 – WEIGHT DISTRIBUTION/CENTER OF GRAVITY DIMENSIONS ENGLISH YCAL0024SC - YCAL0034SC LD03850 DIMENSIONS ENGLISH YCAL0040SC - YCAL0060SCInstallation TABLE 19 – WEIGHT DISTRIBUTION/CENTER OF GRAVITY DIMENSIONS ENGLISH YCAL0040SC - YCAL0060SC LD03852 DIMENSIONS ENGLISH YCAL0064SC - YCAL0080SCInstallation TABLE 20 – WEIGHT DISTRIBUTION/CENTER OF GRAVITY DIMENSIONS ENGLISH YCAL0064SC - YCAL0080SC Installation DIMENSIONS METRIC YCAL0014SC - YCAL0020SC TABLE 21 – WEIGHT DISTRIBUTION/CENTER OF GRAVITY DIMENSIONS METRIC YCAL0014SC - YCAL0020SC LD03856 DIMENSIONS METRIC YCAL0024SC - YCAL0034SCInstallation TABLE 22 - WEIGHT DISTRIBUTION/CENTER OF GRAVITY DIMENSIONS METRIC YCAL0024SC - YCAL0034SC Installation DIMENSIONS METRIC YCAL0040SC - YCAL0060SC TABLE 23 – WEIGHT DISTRIBUTION/CENTER OF GRAVITY DIMENSIONS METRIC YCAL0040SC - YCAL0060SC LD03860 DIMENSIONS METRIC YCAL0064SC - YCAL0080SCInstallation TABLE 24 – WEIGHT DISTRIBUTION/CENTER OF GRAVITY DIMENSIONS METRIC YCAL0064SC - YCAL0080SC Installation PRE-STARTUPCHECKLISTINSTALLING START-UPDATE : _________________________ CHECKING SUPERHEAT AND SUBCOOLING INITIAL START-UP SYS 1 SYS InstallationSYS 1 SYS LEAK CHECKING UNIT OPERATING SEQUENCE Unit Controls UNIT CONTROLS YORK MILLENNIUM CONTROL CENTERINTRODUCTION MICROPROCESSOR BOARD BATTERY BACK-UP UNIT SWITCHDISPLAY KEYPAD GENERAL STATUS MESSAGES “STATUS” KEYUnit Controls S Y S SYSTEM SAFETIES FAULT STATUS MESSAGESUnit Controls UNIT SAFETIES UNIT WARNING Unit ControlsU N I T F A U L T L O W A M B I E N T T E M P U N I T F A U L T L O W L I Q U I D T E M P Low Battery Check Prog/Step/Optn STATUS KEY MESSAGESTABLE 26 – STATUS KEY MESSAGES Unit Warning Message OPER DATA Key DISPLAY/PRINT KEYSUnit Controls The minimum limits for the display are ISN - YorkTalk via ISN Remote Mode Unit Controls Oper Data Key OPER DATA Quick Reference List OPERATING DATA PRINTOUT Unit Controls HISTORY DISPLAYS HISTORY PRINTOUT U L T Unit Controls ENTER/ADV key “ENTRY” KEYSUP AND DOWN ARROW KEYS COOLING SETPOINTS “SETPOINTS” KEYSUnit Controls leaving chilled water control leaving chilled liquid control Unit Controls SCHEDULE/ADVANCE DAY key PROGRAM key Unit Controls TABLE 29 - PROGRAM KEY LIMITS AND DEFAULTS Unit Controls Quick Reference Programming ChartTABLE 30 – SETPOINTS QUICK REFERENCE LIST Setpoints Section OPTIONS key “UNIT” KEYS Option 5 – Ambient Control Type Unit Controls CLOCK Clock Unit ControlsOptions Key press key to adv LEAVING CHILLED LIQUID CONTROL UNIT OPERATIONCAPACITY CONTROL Unit Controls STEP DUAL SYSTEM 4 AND 6 COMP UNITS ONLY Unit ControlsRETURN CHILLED LIQUID CONTROL Cooling Setpoint = 45 F 7.2 C Range = 10 F 5.6 C Compressor Staging for Return Water Control –6 Compressors EVAPORATOR PUMP CONTROL Unit ControlsEVAPORATOR HEATER CONTROL CONDENSER FAN CONTROL LOW AMBIENT CONDENSER FAN CONTROL Unit Controls ALARM STATUSPUMPDOWN LLSV CONTROL LOAD LIMITING BAS/EMS TEMPERATURE RESET OPTION EMS-PWMREMOTE TEMPERATURE RESET FIG. 7 – FIELD AND FACTORY ELECTRICAL CONNECTIONS Unit Controls SERVICE MODE SERVICE AND TROUBLESHOOTINGSERVICE MODE - DIGITAL OUTPUTS CLEARING HISTORY BUFFERS Service and Troubleshooting TABLE 44 – MICROBOARD BINARY INPUTS Sys 1 Low Press SwitchTABLE 45 – MICROBOARD ANALOG INPUTS TABLE 46 – MICROBOARD OUTPUTS FIG. 8 – MICROBOARD LAYOUT Service and TroubleshootingTB1TB2 TB5 TB4 CLOCK ON/OFF JUMPER TB3 J9 J4 J8 J6 J5 J7 ANALOG INPUTS – Temperature CHECKING INPUTS AND OUTPUTS BINARY INPUTS TABLE 48 – ENTERING AND LEAVING CHILLED Service and Troubleshooting ANALOG INPUTS – Pressure DIGITAL OUTPUTS Service and Troubleshooting KEYPAD Service and Troubleshooting OPTIONAL PRINTER INSTALLATIONAssembly and Wiring Parts PROBLEM TROUBLESHOOTINGSOLUTION Service before PROBLEM Service and TroubleshootingFAULT CONT’D PRESSURE” FAULT SOLUTION PROBLEM“MP / HPCO” FAULT CAUSE Service and Troubleshooting MAINTENANCE TRANSMITTED DATA ISN CONTROLRECEIVED DATA CONTROL DATA TABLE 53 – ISN TRANSMITTED DATA Service and Troubleshooting TABLE 54 – ISN OPERATIONAL AND FAULT CODES Wiring Diagrams ELEMENTARY DIAGRAM YCAL0014SC - YCAL0030SC LD03531 ELEMENTARY DIAGRAM YCAL0014SC – YCAL0030SCFIG. 11 – ELEMENTARY DIAGRAM Cont’d Wiring Diagrams ELEMENTARY DIAGRAM YCAL0014SC – YCAL0030SCFIG. 12 – ELEMENTARY DIAGRAM LD03532 YORK INTERNATIONAL This page intentionally left blankFORM 150.62-NM1 FIG. 13 – ELEMENTARY DIAGRAM ELEMENTARY DIAGRAM YCAL0034SCWiring Diagrams LD03533 ELEMENTARY DIAGRAM YCAL0034SCFIG. 13 – ELEMENTARY DIAGRAM Cont’d Wiring Diagrams ELEMENTARY DIAGRAM YCAL0034SCFIG. 14 – ELEMENTARY DIAGRAM LD03534 YORK INTERNATIONAL This page intentionally left blankFORM 150.62-NM1 FIG. 15 – ELEMENTARY DIAGRAM ELEMENTARY DIAGRAM YCAL0040SC – YCAL0060SCWiring Diagrams LD03535 ELEMENTARY DIAGRAM YCAL0040SC - YCAL0060SCFIG. 15 – ELEMENTARY DIAGRAM Cont’d FIG. 16 – ELEMENTARY DIAGRAM ELEMENTARY DIAGRAM YCAL0040SC – YCAL0060SCWiring Diagrams LD03536 ELEMENTARY DIAGRAM YCAL0040SC – YCAL0060SCFIG. 16 – ELEMENTARY DIAGRAM Cont’d FIG. 17 – ELEMENTARY DIAGRAM ELEMENTARY DIAGRAM YCAL0064SC – YCAL0080SCWiring Diagrams LD03537 ELEMENTARY DIAGRAM YCAL0064SC – YCAL0080SCFIG. 17 – ELEMENTARY DIAGRAM Cont’d FIG. 18 - ELEMENTARY DIAGRAM ELEMENTARY DIAGRAM YCAL0064SC – YCAL0080SCWiring Diagrams LD03538 ELEMENTARY DIAGRAM YCAL0064SC – YCAL0080SCFIG. 18 - ELEMENTARY DIAGRAM Cont’d Appendix 1 – Isolators APPENDIXALUMINUM FINS ISOLATOR SPRING IDENTIFICATION TABLE ISOLATOR SPRING IDENTIFICATION TABLE APPENDIXCOPPER FINS Appendix 1 - Isolators APPENDIX DIMENSIONSFIG. 19 – TYPE CP FIG. 20 – TYPE CP FIG. 21 – R SPRING SEISMIC ISOLATORS APPENDIX DIMENSIONS APPENDIX INSTALLATION AND ADJUSTING INSTALLATIONSAppendix 1 – Isolators TYPE CP MOUNTING “AEQM” SPRING-FLEXMOUNTING INSTALLATION AND ADJUSTMENT INSTRUCTIONSAPPENDIX ALABAMA YORK INTERNATIONAL This page intentionally left blankFORM 150.62-NM1 Tele. P.O. Box 1592, York, Pennsylvania USASubject to change without notice. Printed in USA Copyright by York International Corporation