Manuals / York / Household Appliance / Heat Pump

York YK M3 M3 G4 P.O. Box 1592, York, Pennsylvania USA, All Rights Reserved, Form 160.49-O21296

Models: YK M3 M3 G4 THRU YK S6 S4 J2, YK LB LB G4 THRU YK SE SC J4 YK M3 M3 G4

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P.O. Box 1592, York, Pennsylvania USA 17405-1592

P.O. Box 1592, York, Pennsylvania USA 17405-1592	Subject to change without notice. Printed in USA
Copyright © by York International Corporation 1997	ALL RIGHTS RESERVED
Form 160.49-O2 (1296)
Supersedes: Nothing

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York YK M3 M3 G4 P.O. Box 1592, York, Pennsylvania USA, Copyright by York International Corporation, All Rights Reserved

FAQ

What is the address of York International Corporation?

P.O.Box 1592, York, Pennsylvania USA 17405-1592

Who owns the copyright for this manual?

York International Corporation owns the copyright for this manual.

Is there a specific form number for this manual?

Yes, the form number is 160.49-O21296.

Contents

MILLENNIUM TM W ARNINGTABLE OF CONTENTS REFERENCE INSTRUCTIONSDESCRIPTION FORM NONOMENCLATURE R-22UNITSR-134a SECTION SYSTEM OPERATION DESCRIPTION See FigCAPACITY CONTROL SECTION MICROCOMPUTER CONTROL CENTER FIG. 3 - MICROCOMPUTER CONTROL CENTER AND KEYPADINTRODUCTION CONTROL CENTER OPERATIONDISPLAYING SYSTEM PARAMETERS To Display CHILLED LIQUID TEMPERATURES To Display REFRIGERANT PRESSURETo Display OIL PRESSURE To Display SSS MOTOR CURRENT / VOLTSis displayed To Display MOTOR CURRENTTo Display OPERATING HOURS and STARTS COUNTER SYSTEM SETPOINTSPage DISPLAYING SYSTEM SETPOINTS To Display REMOTE RESET TEMP RANGE Setpoint Solid State Starter Applications OnlyPROGRAMMING 1.Press ACCESS CODE keyTHE MICROCOMPUTER CONTROL CENTER PROGRAMMING SYSTEM SETPOINTSElectro-MechanicalStarter, refer to Fig Solid State Starter, refer to FigTo Enter PULL DOWN DEMAND Setpoint Refer to Fig 3.Press and release ADVANCE DAY/SCROLL key.The following prompt message is displayed To Enter REMOTE/ RESET TEMP RANGE Setpoint Refer to Fig SERVICE KEYS PRE-ROTATIONVANES KEYSOTHER SERVICE KEYS OPERATING MODES 1.Press ACCESS CODE keyCOMPRESSOR SWITCH DISPLAY MESSAGESTherefore SYSTEM SHUTDOWN MESSAGES when Control Center is in REMOTE mode Phase rotation/loss FUNCTION JUMPER POSITIONSolid State Starter applications only Solid State Starter applications onlySolid State Starter applications only MON XX XX AM - AUX SAFETY SHUTDOWN MON XX XX AM - HIGH SPEED DRAIN TEMPMON XX XX AM - OPEN DRAIN TEMP THERMOCOUPLE MON XX XX AM - DC UNDERVOLTAGEfused disconnect switch to the starter or START-UPPROCEDURESECTION and remains energized as long as theCHILLER OPERATION Condenser Water Temperature Control SYSTEM STARTING & SHUTDOWN SEQUENCEOPERATOR INITIATED CHECKING OPERATION OPERATING LOG SHEETOPERATING INSPECTIONS - See Section DailyWeekly QuarterlyNEED FOR MAINTENANCE OR SERVICE NORMAL AND SAFETY SYSTEM SHUTDOWNSSAFETY SHUTDOWNS CYCLING SHUTDOWNSPROLONGED SHUTDOWN START-UPAFTER PROLONGED SHUTDOWNSECTION SYSTEM COMPONENTS DESCRIPTIONFRONT VIEW 27385AGENERAL COMPRESSORCAPACITY CONTROL COMPRESSOR LUBRICATION SYSTEM See FigLD00951 OIL HEATER MOTOR DRIVELINEHEAT EXCHANGERS REFRIGERANT FLOW CONTROLMICROCOMPUTER CONTROL CENTER See Section SOLID STATE STARTER OptionalVARIABLE SPEED DRIVE Optional ACTUAL LEVEL = XXX% LEVEL SETP = XXX%OPERATIONAL MAINTENANCE SECTIONOIL RETURN SYSTEM OIL CHARGING PROCEDURE THE OIL CHARGETROUBLESHOOTING SECTIONYORK INTERNATIONAL YORK INTERNATIONAL 1. SYMPTOM ABNORMALLY HIGH DISCHARGE PRESSURE 2. SYMPTOM ABNORMALLY LOW SUCTION PRESSURE3. SYMPTOM HIGH COOLER PRESSURE RESULTS7. SYMPTOM OIL PUMP VIBRATES OR IS NOISY 11. SYMPTOM REDUCED OIL PUMP CAPACITYRESULTS POSSIBLE CAUSELEAK TESTING DURING OPERATION SECTIONRENEWAL PARTS CHECKING SYSTEM FOR LEAKSVACUUM TESTING VACUUM DEHYDRATION REFRIGERANT CHARGING CHECKING THE REFRIGERANT CHARGEDURING UNIT SHUTDOWN HANDLING REFRIGERANT FOR DISMANTLING AND REPAIRS MEGGING THE MOTOROpen Motors LD00476CLEANING COOLER AND CONDENSER TUBES TUBE CLEANING PROCEDURESCOMMERCIAL ACID CLEANING GENERALTESTING FOR COOLER AND CONDENSER TUBE LEAKS COMPRESSOR ELECTRICAL CONTROLSPRESSURE TESTING SECTIONCOMPRESSOR COMPRESSOR MOTORELECTRICAL CONTROLS P.O. Box 1592, York, Pennsylvania USA Copyright by York International CorporationALL RIGHTS RESERVED Form 160.49-O21296