York Millennium YK M3 M3 G4 THRU YK S6 S4 J2 User Manual
Millennium
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OPERATING & MAINTENANCE
Supersedes: Nothing
Form 160.49-O2 (1296)
MILLENNIUM
TM
CENTRIFUGAL LIQUID CHILLERS
MODEL YK M3 M3 G4 THRU YK S6 S4 J2 (STYLE C)
R-22 (COOLING ONLY)
MODEL YK LB LB G4 THRU YK SE SC J4 (STYLE C)
R-134a (COOLING ONLY)
WITH MICROCOMPUTER CONTROL CENTER
PART #371-01200-010, 371-01200-011 & 371-01200-015
FOR ELECTRO-MECHANICAL STARTER,
SOLID STATE STARTER & VARIABLE SPEED DRIVE
W
W
W
W
W ARNING
ARNING
ARNING
ARNING
ARNING
SYSTEM CONTAINS REFRIGERANT UNDER PRESSURE.
SERIOUS INJURY COULD RESULT IF PROPER PROCEDURES ARE NOT
FOLLOWED WHEN SERVICING SYSTEM. ALL SERVICE WORK SHALL
BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN IN ACCOR-
DANCE WITH YORK INSTALLATION/OPERATION MANUAL.
27385A
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Table of contents
Document Outline
- 160.49-O2 (1296)
- CENTRIFUGAL LIQUID CHILLERS
- OPERATING & MAINTENANCE
- MODEL YK M3 M3 G4 THRU YK S6 S4 J2 (STYLE C)
- MODEL YK LB LB G4 THRU YK SE SC J4 (STYLE C)
- W ARNING
- TABLE OF CONTENTS
- REFERENCE INSTRUCTIONS
- NOMENCLATURE
- SECTION 1
- SECTION 2
- MICROCOMPUTER CONTROL CENTER
- PROGRAMMING
- THE MICROCOMPUTER CONTROL CENTER
- PROGRAMMING SYSTEM SETPOINTS
- FIG. 5 – KEYPAD – PROGRAMMING SYSTEMSETPOINTS
- FIG. 6 – KEYPAD – PROGRAMMING “LEAVING CHILLED WATER TEMP” SETPOINT
- FIG. 7 – KEYPAD – PROGRAMMING “% CURRENT LIMIT” SETPOINT
- FIG. 8 – KEYPAD – PROGRAMMING “PULL DOWN DEMAND” SETPOINT
- FIG. 9 – KEYPAD – PROGRAMMING “CLOCK” SETPOINT
- FIG. 10 – KEYPAD – PROGRAMMING “DAILY SCHEDULE” SETPOINT
- FIG. 11 – KEYPAD – PROGRAMMING “HOLIDAY” SETPOINT
- FIG. 12 – KEYPAD – PROGRAMMING “REMOTE RESET TEMP RANGE
- THE MICROCOMPUTER CONTROL CENTER
- SERVICE KEYS
- OPERATING MODES
- COMPRESSOR SWITCH
- DISPLAY MESSAGES
- FIG. 14 – MICROCOMPUTER CONTROL CENTER LOCATION OF REAL TIME CLOCK U16 RTC IC CHIP
- SECTION 3
- SYSTEM OPERATING PROCEDURES
- WARNING
- START-UP PROCEDURE
- START-UP
- CHILLER OPERATION
- SYSTEM STARTING & SHUTDOWN SEQUENCE
- FIG. 15 – CHILLER STARTING SEQUENCE & SHUTDOWN SEQUENCE
- Condenser Water Temperature Control
- CHECKING OPERATION
- OPERATING LOG SHEET
- FIG. 16 – LIQUID CHILLER LOG SHEETS
- OPERATING INSPECTIONS – See Section 2
- NEED FOR MAINTENANCE OR SERVICE
- NORMAL AND SAFETY SYSTEM SHUTDOWNS
- SAFETY SHUTDOWNS
- CYCLING SHUTDOWNS
- STOPPING THE SYSTEM
- PROLONGED SHUTDOWN
- START-UP AFTER PROLONGED SHUTDOWN
- SYSTEM OPERATING PROCEDURES
- SECTION 4
- SYSTEM COMPONENTS DESCRIPTION
- FRONT VIEW
- FIG. 17 – SYSTEM COMPONENTS
- GENERAL
- COMPRESSOR
- CAPACITY CONTROL
- COMPRESSOR LUBRICATION SYSTEM
- OIL PUMP
- FIG. 18 – SCHEMATIC DRAWING – (YK) COMPRESSOR LUBRICATION SYSTEM
- OIL HEATER
- MOTOR DRIVELINE
- HEAT EXCHANGERS
- REFRIGERANT FLOW CONTROL
- MICROCOMPUTER CONTROL CENTER
- SOLID STATE STARTER
- VARIABLE SPEED DRIVE
- SYSTEM COMPONENTS DESCRIPTION
- SECTION 5
- SECTION 6
- SECTION 7
- MAINTENANCE
- RENEWAL PARTS
- CHECKING SYSTEM FOR LEAKS
- EVACUATION AND DEHYDRATION OF UNIT
- FIG. 21 – EVACUATION OF CHILLER
- TABLE 3 – SYSTEM PRESSURES
- VACUUM TESTING
- VACUUM DEHYDRATION
- OPERATION
- FIG. 22 – SATURATION CURVE
- REFRIGERANT CHARGING
- CHECKING THE REFRIGERANT CHARGE
- HANDLING REFRIGERANT FOR
- MEGGING THE MOTOR
- CONDENSERS AND COOLERS
- COMPRESSOR
- ELECTRICAL CONTROLS
- MAINTENANCE
- SECTION 8
- RETURN TO PREVIOUS MENU
- MAIN MENU