用户手册 — York YK M3 M3 G4

目录

• 160.49-O2 (1296)

  1
• CENTRIFUGAL LIQUID CHILLERS

  1
• OPERATING & MAINTENANCE

  1
• MODEL YK M3 M3 G4 THRU YK S6 S4 J2 (STYLE C)

  1
• MODEL YK LB LB G4 THRU YK SE SC J4 (STYLE C)

  1
• W ARNING

  1
• TABLE OF CONTENTS

  2
• REFERENCE INSTRUCTIONS

  2
• NOMENCLATURE

  3
  • R-22 UNITS

    3
  • R-134a

    3
• SECTION 1

  4
  • DESCRIPTION OF SYSTEM AND FUNDAMENTALS OF OPERATION

    4
    • FIG. 1 – MODEL YK MILLENNIUM CHILLER

      4
    • SYSTEM OPERATION DESCRIPTION (See Fig. 2)

      4
    • DETAIL A – COMPRESSOR PREROTATION VANES

      5
    • CAPACITY CONTROL

      5
    • FIG. 2 – REFRIGERANT FLOW-THRU CHILLER

      5
• SECTION 2

  6
  • MICROCOMPUTER CONTROL CENTER

    6
    • FIG. 3 – MICROCOMPUTER CONTROL CENTER AND KEYPAD

      6
    • WARNING

      6
    • INTRODUCTION

      7
    • CONTROL CENTER

      8
    • OPERATION

      8
    • FIG. 4 – SYSTEM PARAMETERS – OUT OF RANGE READINGS

      9
    • SYSTEM SETPOINTS

      10
    • DISPLAYING SYSTEM SETPOINTS

      12
  • PROGRAMMING

    14
    • THE MICROCOMPUTER CONTROL CENTER

      14
      • PROGRAMMING SYSTEM SETPOINTS

        14
      • FIG. 5 – KEYPAD – PROGRAMMING SYSTEMSETPOINTS

        14
      • FIG. 6 – KEYPAD – PROGRAMMING “LEAVING CHILLED WATER TEMP” SETPOINT

        15
      • FIG. 7 – KEYPAD – PROGRAMMING “% CURRENT LIMIT” SETPOINT

        15
      • FIG. 8 – KEYPAD – PROGRAMMING “PULL DOWN DEMAND” SETPOINT

        16
      • FIG. 9 – KEYPAD – PROGRAMMING “CLOCK” SETPOINT

        16
      • FIG. 10 – KEYPAD – PROGRAMMING “DAILY SCHEDULE” SETPOINT

        17
      • FIG. 11 – KEYPAD – PROGRAMMING “HOLIDAY” SETPOINT

        18
      • FIG. 12 – KEYPAD – PROGRAMMING “REMOTE RESET TEMP RANGE

        18
  • SERVICE KEYS

    19
    • FIG. 13 – KEYPAD – SERVICE KEYS LOCATION

      19
    • OTHER SERVICE KEYS

      20
  • OPERATING MODES

    21
  • COMPRESSOR SWITCH

    22
  • DISPLAY MESSAGES

    22
  • FIG. 14 – MICROCOMPUTER CONTROL CENTER LOCATION OF REAL TIME CLOCK U16 RTC IC CHIP

    29
• SECTION 3

  30
  • SYSTEM OPERATING PROCEDURES

    30
    • WARNING

      30
    • START-UP PROCEDURE

      30
    • START-UP

      31
    • CHILLER OPERATION

      31
    • SYSTEM STARTING & SHUTDOWN SEQUENCE

      32
    • FIG. 15 – CHILLER STARTING SEQUENCE & SHUTDOWN SEQUENCE

      32
    • Condenser Water Temperature Control

      32
    • CHECKING OPERATION

      33
    • OPERATING LOG SHEET

      33
    • FIG. 16 – LIQUID CHILLER LOG SHEETS

      33
    • OPERATING INSPECTIONS – See Section 2

      34
    • NEED FOR MAINTENANCE OR SERVICE

      35
    • NORMAL AND SAFETY SYSTEM SHUTDOWNS

      35
    • SAFETY SHUTDOWNS

      35
    • CYCLING SHUTDOWNS

      35
    • STOPPING THE SYSTEM

      35
    • PROLONGED SHUTDOWN

      36
    • START-UP AFTER PROLONGED SHUTDOWN

      36
• SECTION 4

  37
  • SYSTEM COMPONENTS DESCRIPTION

    37
    • FRONT VIEW

      37
    • FIG. 17 – SYSTEM COMPONENTS

      37
    • GENERAL

      38
    • COMPRESSOR

      38
    • CAPACITY CONTROL

      38
    • COMPRESSOR LUBRICATION SYSTEM

      38
    • OIL PUMP

      38
    • FIG. 18 – SCHEMATIC DRAWING – (YK) COMPRESSOR LUBRICATION SYSTEM

      39
    • OIL HEATER

      40
    • MOTOR DRIVELINE

      40
    • HEAT EXCHANGERS

      40
    • REFRIGERANT FLOW CONTROL

      40
    • MICROCOMPUTER CONTROL CENTER

      41
    • SOLID STATE STARTER

      41
    • VARIABLE SPEED DRIVE

      41
• SECTION 5

  42
  • OPERATIONAL MAINTENANCE

    42
    • OIL RETURN SYSTEM

      42
    • FIG. 19 – OIL RETURN SYSTEM

      42
    • THE OIL CHARGE

      43
    • OIL CHARGING PROCEDURE

      43
    • FIG. 20 – CHARGING OIL RESERVOIR WITH OIL

      43
• SECTION 6

  44
  • TABLE 1 – CAUSES OF NORMAL AND SAFETY SYSTEM SHUTDOWNS IN ACCORDANCE WITH THE MICROCOMPUTER CONTROL, CENTER DISPLAY

    44
  • TABLE 2 – OPERATING ANALYSIS CHART

    47
• SECTION 7

  49
  • MAINTENANCE

    49
    • RENEWAL PARTS

      49
    • CHECKING SYSTEM FOR LEAKS

      49
    • EVACUATION AND DEHYDRATION OF UNIT

      49
    • FIG. 21 – EVACUATION OF CHILLER

      49
    • TABLE 3 – SYSTEM PRESSURES

      50
    • VACUUM TESTING

      50
    • VACUUM DEHYDRATION

      51
    • OPERATION

      51
    • FIG. 22 – SATURATION CURVE

      51
    • REFRIGERANT CHARGING

      52
      • TABLE 4 – REFRIGERANT CHARGE

        52
    • CHECKING THE REFRIGERANT CHARGE

      52
    • HANDLING REFRIGERANT FOR

      53
    • MEGGING THE MOTOR

      53
      • FIG. 23 – DIAGRAM, MEGGING MOTOR WINDINGS

        53
      • FIG. 24 - MOTOR STATOR TEMPERATURE AND INSULATION RESISTANCES

        54
    • CONDENSERS AND COOLERS

      55
      • GENERAL

        55
      • CHEMICAL WATER TREATMENT

        55
      • CLEANING COOLER AND CONDENSER TUBES

        55
      • TUBE CLEANING PROCEDURES

        55
      • COMMERCIAL ACID CLEANING

        55
      • TESTING FOR COOLER AND CONDENSER TUBE LEAKS

        56
    • COMPRESSOR

      57
    • ELECTRICAL CONTROLS

      57
• SECTION 8

  58
  • PREVENTIVE MAINTENANCE

    58
  • COMPRESSOR

    58
    • COMPRESSOR MOTOR

      58
    • PRESSURE TESTING

      58
    • COOLER AND CONDENSER

      58
    • OIL RETURN SYSTEM

      58
    • ELECTRICAL CONTROLS

      59
• MAIN MENU

  1