York YT - Manual

York YT

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Table of Contents:

  • Page 3 – READ BEFORE PROCEEDING!; GENERAL SAFETY GUIDELINES
  • Page 4 – CHANGEABILITY OF THIS DOCUMENT; ed and if current lit er a ture; REFERENCE INSTRUCTIONS; NOMENCLATURE; YT K3 C4 E2 — CR J; Model Design Level
  • Page 5 – TABLE OF CONTENTS
  • Page 6 – LIST OF FIGURES
  • Page 7 – SECTION 1; DESCRIPTION OF SYSTEM AND FUNDAMENTALS OF OPERATION; MODEL YT MILLENNIUM CHILLER
  • Page 8 – REFRIGERANT FLOW-THRU CHILL ER; able ori; CAPACITY CONTROL; COMPRESSOR PREROTATION VANES; Description of System and Fun da men tals of Operation
  • Page 9 – SECTION 2; OPTIVIEW CONTROL CEN TER; Display Messages
  • Page 10 – • zz – language package revision level (00,
  • Page 11 – THIS PAGE INTENTIONALLY LEFT BLANK
  • Page 12 – START; CONTROL CENTER; Decimal; RUN; OptiView Control Center
  • Page 13 – OVERVIEW; INTERFACE CONVENTIONS
  • Page 14 – Manual Controls; NAVIGATION
  • Page 15 – ANALOG INPUT RANGES; LANGUAGES
  • Page 16 – HOME SCREEN
  • Page 17 – Access Level Re quired:
  • Page 18 – SYSTEM SCREEN; Displays the present refrigerant pressure in the evap o ra tor.
  • Page 19 – Current Limit; None
  • Page 20 – EVAPORATOR SCREEN
  • Page 21 – PROGRAMMABLE
  • Page 22 – CONDENSER SCREEN
  • Page 23 – Refrigerant Level Setpoint; Ac cess Level Re quired:; Refrigerant Level Control
  • Page 24 – PURGE SCREEN; Illuminated when the Oil Valve Solenoid is energized,; Pressure; Displays the pressure in the Purge Tank.; Exhaust Count
  • Page 25 – Bypass Time Left
  • Page 26 – REFRIGERANT LEVEL CONTROL SCREEN
  • Page 28 – COMPRESSOR SCREEN; Access Level Required:
  • Page 29 – HOLD; Pre-Rotation Vane Calibration
  • Page 30 – HOT GAS BYPASS SCREEN
  • Page 31 – Hot Gas Bypass Control Mode; Causes an instant return to the Home Screen.
  • Page 32 – Displays the number of surge events that have oc-; SURGE PROTECTION SCREEN; Total Surge Count
  • Page 36 – PRE-ROTATION VANES CALIBRATION SCREEN
  • Page 38 – VSD TUNING SCREEN
  • Page 40 – OIL SUMP SCREEN; Displays the temperature of the oil in the sump.; Oil Pressure; Access Level Required: VIEW
  • Page 41 – ELECTRO-MECHANICAL STARTER SCREEN
  • Page 42 – MOD “A” SOLID STATE STARTER SCREEN
  • Page 43 – Access Level Required; Access Level Re quired
  • Page 44 – MOD “B” SOLID STATE STARTER SCREEN; OPERATOR
  • Page 46 – VARIABLE SPEED DRIVE SCREEN; Displays the output voltage measured to the motor.
  • Page 48 – VARIABLE SPEED DRIVE DETAILS SCREEN; Service Tech ni cians refer to YORK; DISPLAY ONLY; Displays the DC Bus voltage as reported by the VSD.; DC Inverter Link Current
  • Page 49 – Ac cess Level Re quired; Returns to the VSD Screen.
  • Page 52 – ADAPTIVE CAPACITY CONTROL DETAILS SCREEN
  • Page 53 – When this function is active, all
  • Page 54 – HARMONIC FILTER DETAILS SCREEN; Indicates whether the Harmonic Filter is op er at ing.
  • Page 55 – Heatsink Temperature
  • Page 57 – Displays the 3-phase RMS Voltages across each line.; ed pulldown limit time. This value will
  • Page 58 – SETPOINTS SCREEN; ning the setup of general system parameters.; Displays the Leaving Chilled Liquid Tem per a ture at which; Current limit Setpoint; BASE
  • Page 59 – LEAVING CHILLED LIQUID – LOW TEM-
  • Page 60 – SETUP SCREEN
  • Page 64 – SCHEDULE SCREEN; exception
  • Page 65 – Schedule
  • Page 66 – USER SCREEN
  • Page 68 – COMMS SCREEN
  • Page 69 – ne the number of stop bits at which the panel shall
  • Page 70 – PRINTER SCREEN; This screen allows de; Set the time at which scheduled print logs will begin.
  • Page 72 – SALES ORDER SCREEN
  • Page 74 – OPERATIONS SCREEN
  • Page 76 – HISTORY SCREEN
  • Page 77 – VIEW
  • Page 78 – HISTORY DETAILS SCREEN; Causes a return to the History Screen.
  • Page 79 – SECURITY LOG SCREEN; Displays the setpoint that was changed.; Causes an instant return to the History Screen.
  • Page 80 – SECURITY LOG DETAILS SCREEN; Displays the setpoint/category that was changed.
  • Page 81 – Causes an instant return to the Security Log Screen.
  • Page 82 – TREND SCREEN
  • Page 84 – TREND SETUP SCREEN
  • Page 85 – TREND MIN
  • Page 86 – ADVANCED TREND SETUP SCREEN
  • Page 88 – COMMON SLOTS SCREEN
  • Page 89 – CUSTOM VIEW SCREEN; History; Setup; Access Level required:
  • Page 90 – CUSTOM VIEW SETUP; Scroll up through list of available parameters.
  • Page 91 – MASTER SLOT NUMBERS LIST FOR USE WITH TREND FEA TURE
  • Page 94 – DISPLAY MESSAGES; STATUS MESSAGES
  • Page 95 – START INHIBIT MESSAGES; ed
  • Page 97 – ce is driven to the full open po si tion. This mes sage; ROUTINE SHUTDOWN MES SAG ES; g u ra tion. It indicates a
  • Page 98 – Device Shutdown
  • Page 99 – Refer to “
  • Page 100 – gured correctly. Refer; “LCSSS – PHASE LOCKED LOOP”
  • Page 103 – – The VSD sys tem re quires
  • Page 105 – SAFETY SHUTDOWN MESSAGES
  • Page 107 – switch is placed in
  • Page 108 – LCSSS Stop
  • Page 109 – See Phase A mes sage above.
  • Page 110 – switch is placed
  • Page 112 – SECTION 3; PRINTERS; Printers
  • Page 114 – The Control Center requires a busy signal from the; PRINTER CONNECTIONS; • SEIKO; Cable; wire and insert into screw ter mi nal block.; PRINTER SETUP; The selected printer must be con; • WEIGH-TRONIX Printer
  • Page 115 – CONTROL CENTER SETUP
  • Page 117 – CONTINUED
  • Page 119 – SAMPLE PRINTOUT
  • Page 124 – SECTION 4; SYSTEM OPERATING PROCEDURES; OIL HEATERS; System Op er at ing Pro ce dures
  • Page 126 – OPERATION SEQUENCE TIMING DIAGRAM
  • Page 127 – CHECKING OP ER A TION; Be sure the oil pump is operating while unit is run-; OPERATING LOG SHEET; MINIMUM ENTERING CONDENSING
  • Page 128 – OPERATING INSPECTIONS
  • Page 129 – NEED FOR PURGING THE SYSTEM; – TURBOGUARD PURGE UNIT; NORMAL AND SAFE TY SYS TEM SHUTDOWNS
  • Page 130 – PROLONGED SHUTDOWN
  • Page 131 – SECTION 5; COMPRESSOR / MOTOR ASSEMBLY
  • Page 132 – SCHEMATIC DRAWING – (YT) COM PRES SOR LUBRICATION SYSTEM; System Components De scrip tion
  • Page 133 – COMPRESSOR LUBRICATION SYSTEM
  • Page 134 – COOLER
  • Page 135 – SECTION 6; OIL RETURN SYSTEM; OIL RETURN; – OIL RETURN SYSTEM
  • Page 136 – Operational Maintenance; – ASSEMBLY OF DEHYDRATOR
  • Page 137 – CHARGING OIL RESERVOIR WITH OIL; OIL CHARG ING PRO CE DURE; CHARGING THE UNIT WITH OIL
  • Page 138 – Troubleshooting; SECTION 7; TABLE 1
  • Page 139 – CONTROL CENTER DISPLAY - CONTINUED
  • Page 141 – OptiView
  • Page 142 – TABLE 2; – OPERATING ANALYSIS CHART
  • Page 143 – – OPERATING ANALYSIS CHART - CONTINUED
  • Page 144 – Maintenance; SECTION 8; For any required Renewal Parts re fer to Forms listed on page 4.; LEAK TEST ING DUR ING OP ER A TION; are nuts or; CONDUCTING PRES SURE TEST; Build up the system pressure with dry nitrogen to; CHECKING SYSTEM FOR LEAKS
  • Page 145 – TABLE 3 –; SYSTEM PRESSURES
  • Page 146 – EVACUATION AND DEHYDRATION OF UNIT; VACUUM TESTING
  • Page 147 – SATURATION CURVE; REFRIGERANT CHARGING; t be tween the sys tem charging valve; TABLE 4 –; REFRIGERANT CHARGE
  • Page 148 – CHECKING THE REFRIGERANT CHARGE DURING UNIT SHUT DOWN; The refrigerant charge is speci; MEGGING THE MOTOR; If readings fall below shaded area, remove ex ter nal
  • Page 149 – DIAGRAM, MEGGING MOTOR WIND INGS; GENERAL; Cooler; It is dif; Condenser; TUBE FOULING; nds its way into the tubes; CONDENSERS AND COOLERS
  • Page 150 – MOTOR STATOR TEMPERATURE AND INSULATION RE SIS TANC ES
  • Page 151 – TUBE CLEAN ING PRO CE DURES; Brush Cleaning of Tube; COMMERCIAL ACID CLEANING
  • Page 152 – COMPRESSOR; COMPRESSOR MOTOR; SECTION 9; Preventive Maintenance
  • Page 153 – COOLER AND CONDENSER; Every Three Months; OIL RE TURN SYS TEM
  • Page 154 – OPTISAVE ENERGY ANALYSER FEATURE; The; OptiSave Energy Analyzer Feature; reveals the
  • Page 155 – NOTES
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OPERATING & MAINTENANCE

MILLENNIUM

®

CENTRIFUGAL LIQUID CHILLERS

Supersedes: 160.55-O1 (402)

Form 160.55-O1 (604)

MODEL YT (STYLE J)

R123 COOLING ONLY

WITH OPTIVIEW

™

CONTROL CENTER

FOR ELECTRO-MECHANICAL STARTER,

SOLID STATE STARTER & VARIABLE SPEED DRIVE

29509A

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Summary

Page 3 - READ BEFORE PROCEEDING!; GENERAL SAFETY GUIDELINES

FORM 160.55-O1 (604) 3 YORK INTERNATIONAL This equipment is a relatively complicated apparatus. During installation, operation, maintenance or service, in di vid u als may be exposed to certain components or conditions including, but not limited to: refrigerants, oils, materials under pressure, rota...

Page 4 - CHANGEABILITY OF THIS DOCUMENT; ed and if current lit er a ture; REFERENCE INSTRUCTIONS; NOMENCLATURE; YT K3 C4 E2 — CR J; Model Design Level

YORK INTERNATIONAL 4 FORM 160.55-O1 (604) CHANGEABILITY OF THIS DOCUMENT In complying with YORK’s policy for continuous prod uct improvement, the information contained in this doc u ment is subject to change without notice. While YORK makes no commitment to update or pro vide current in for ma tion ...

Page 5 - TABLE OF CONTENTS

FORM 160.55-O1 (604) 5 YORK INTERNATIONAL SECTION 1 Description of System and Fundamentals of Operation............................... 7 SECTION 2 OptiView Control Center ............................................................................. 9 SECTION 3 Printers .................................

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