Benutzerhandbuch für York YK M3 M3 G4 THRU YK S6 S4 J2

Inhaltsverzeichnis

• 160.49-O2 (1296)

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• CENTRIFUGAL LIQUID CHILLERS

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• OPERATING & MAINTENANCE

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• MODEL YK M3 M3 G4 THRU YK S6 S4 J2 (STYLE C)

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• MODEL YK LB LB G4 THRU YK SE SC J4 (STYLE C)

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• W ARNING

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• TABLE OF CONTENTS

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• REFERENCE INSTRUCTIONS

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• NOMENCLATURE

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  • R-22 UNITS

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  • R-134a

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• SECTION 1

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  • DESCRIPTION OF SYSTEM AND FUNDAMENTALS OF OPERATION

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    • FIG. 1 – MODEL YK MILLENNIUM CHILLER

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    • SYSTEM OPERATION DESCRIPTION (See Fig. 2)

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    • DETAIL A – COMPRESSOR PREROTATION VANES

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    • CAPACITY CONTROL

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    • FIG. 2 – REFRIGERANT FLOW-THRU CHILLER

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• SECTION 2

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  • MICROCOMPUTER CONTROL CENTER

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    • FIG. 3 – MICROCOMPUTER CONTROL CENTER AND KEYPAD

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    • WARNING

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    • INTRODUCTION

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    • CONTROL CENTER

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    • OPERATION

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    • FIG. 4 – SYSTEM PARAMETERS – OUT OF RANGE READINGS

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    • SYSTEM SETPOINTS

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    • DISPLAYING SYSTEM SETPOINTS

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  • PROGRAMMING

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    • THE MICROCOMPUTER CONTROL CENTER

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      • PROGRAMMING SYSTEM SETPOINTS

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      • FIG. 5 – KEYPAD – PROGRAMMING SYSTEMSETPOINTS

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      • FIG. 6 – KEYPAD – PROGRAMMING “LEAVING CHILLED WATER TEMP” SETPOINT

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      • FIG. 7 – KEYPAD – PROGRAMMING “% CURRENT LIMIT” SETPOINT

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      • FIG. 8 – KEYPAD – PROGRAMMING “PULL DOWN DEMAND” SETPOINT

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      • FIG. 9 – KEYPAD – PROGRAMMING “CLOCK” SETPOINT

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      • FIG. 10 – KEYPAD – PROGRAMMING “DAILY SCHEDULE” SETPOINT

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      • FIG. 11 – KEYPAD – PROGRAMMING “HOLIDAY” SETPOINT

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      • FIG. 12 – KEYPAD – PROGRAMMING “REMOTE RESET TEMP RANGE

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  • SERVICE KEYS

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    • FIG. 13 – KEYPAD – SERVICE KEYS LOCATION

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    • OTHER SERVICE KEYS

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  • OPERATING MODES

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  • COMPRESSOR SWITCH

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  • DISPLAY MESSAGES

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  • FIG. 14 – MICROCOMPUTER CONTROL CENTER LOCATION OF REAL TIME CLOCK U16 RTC IC CHIP

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• SECTION 3

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  • SYSTEM OPERATING PROCEDURES

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    • WARNING

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    • START-UP PROCEDURE

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    • START-UP

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    • CHILLER OPERATION

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    • SYSTEM STARTING & SHUTDOWN SEQUENCE

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    • FIG. 15 – CHILLER STARTING SEQUENCE & SHUTDOWN SEQUENCE

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    • Condenser Water Temperature Control

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    • CHECKING OPERATION

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    • OPERATING LOG SHEET

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    • FIG. 16 – LIQUID CHILLER LOG SHEETS

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    • OPERATING INSPECTIONS – See Section 2

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    • NEED FOR MAINTENANCE OR SERVICE

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    • NORMAL AND SAFETY SYSTEM SHUTDOWNS

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    • SAFETY SHUTDOWNS

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    • CYCLING SHUTDOWNS

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    • STOPPING THE SYSTEM

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    • PROLONGED SHUTDOWN

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    • START-UP AFTER PROLONGED SHUTDOWN

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• SECTION 4

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  • SYSTEM COMPONENTS DESCRIPTION

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    • FRONT VIEW

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    • FIG. 17 – SYSTEM COMPONENTS

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    • GENERAL

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    • COMPRESSOR

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    • CAPACITY CONTROL

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    • COMPRESSOR LUBRICATION SYSTEM

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    • OIL PUMP

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    • FIG. 18 – SCHEMATIC DRAWING – (YK) COMPRESSOR LUBRICATION SYSTEM

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    • OIL HEATER

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    • MOTOR DRIVELINE

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    • HEAT EXCHANGERS

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    • REFRIGERANT FLOW CONTROL

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    • MICROCOMPUTER CONTROL CENTER

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    • SOLID STATE STARTER

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    • VARIABLE SPEED DRIVE

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• SECTION 5

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  • OPERATIONAL MAINTENANCE

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    • OIL RETURN SYSTEM

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    • FIG. 19 – OIL RETURN SYSTEM

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    • THE OIL CHARGE

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    • OIL CHARGING PROCEDURE

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    • FIG. 20 – CHARGING OIL RESERVOIR WITH OIL

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• SECTION 6

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  • TABLE 1 – CAUSES OF NORMAL AND SAFETY SYSTEM SHUTDOWNS IN ACCORDANCE WITH THE MICROCOMPUTER CONTROL, CENTER DISPLAY

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  • TABLE 2 – OPERATING ANALYSIS CHART

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• SECTION 7

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  • MAINTENANCE

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    • RENEWAL PARTS

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    • CHECKING SYSTEM FOR LEAKS

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    • EVACUATION AND DEHYDRATION OF UNIT

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    • FIG. 21 – EVACUATION OF CHILLER

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    • TABLE 3 – SYSTEM PRESSURES

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    • VACUUM TESTING

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    • VACUUM DEHYDRATION

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    • OPERATION

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    • FIG. 22 – SATURATION CURVE

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    • REFRIGERANT CHARGING

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      • TABLE 4 – REFRIGERANT CHARGE

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    • CHECKING THE REFRIGERANT CHARGE

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    • HANDLING REFRIGERANT FOR

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    • MEGGING THE MOTOR

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      • FIG. 23 – DIAGRAM, MEGGING MOTOR WINDINGS

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      • FIG. 24 - MOTOR STATOR TEMPERATURE AND INSULATION RESISTANCES

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    • CONDENSERS AND COOLERS

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      • GENERAL

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      • CHEMICAL WATER TREATMENT

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      • CLEANING COOLER AND CONDENSER TUBES

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      • TUBE CLEANING PROCEDURES

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      • COMMERCIAL ACID CLEANING

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      • TESTING FOR COOLER AND CONDENSER TUBE LEAKS

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    • COMPRESSOR

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    • ELECTRICAL CONTROLS

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• SECTION 8

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  • PREVENTIVE MAINTENANCE

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  • COMPRESSOR

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    • COMPRESSOR MOTOR

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    • PRESSURE TESTING

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    • COOLER AND CONDENSER

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    • OIL RETURN SYSTEM

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    • ELECTRICAL CONTROLS

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• MAIN MENU

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