York MILLENNIUM YCAS Installation Operation & Maintenance page 5

General Periodic Maintenance Checks - Standard Units ............................................................ 145
SPARE PARTS ..................................................................................................................................... 146
Recommended Spares ................................................................................................................. 146
Recommended Compressor Oils ................................................................................................. 146
Associated Drawings ..................................................................................................................... 146
TROUBLESHOOTING ......................................................................................................................... 147
Competent Person's Troubleshooting Guide .............................................................................. 147
Sensor Calibration Charts ............................................................................................................. 149
Limited Warranty ............................................................................................................................. 150
Temperature Conversion Chart ..................................................................................................... 151
FIG. 1 - Component Locations .............................. 14
FIG. 2 - Screw Compressor ................................... 15
FIG. 3 - Unit Rigging ............................................... 28
FIG. 4 - Lifting Lugs ................................................ 28
FIG. 5 - Pipework Arrangement .............................. 29
FIG. 6 - Victaulic Groove ......................................... 32
FIG. 7 - Flange Attachments .................................. 32
FIG. 8 - Panel Layouts ............................................ 35
FIG. 9 - Customer Connections ............................. 36
FIG. 10 - Flow Rate and Pressure Drop Charts ...... 41
FIG. 11 - Glycol Correction Factors .......................... 42
FIG. 12 - Elementary Diagram:
Across-The-Line Start ............................... 52
FIG. 13 - Power Panel (Front Inside View)
Across-The-Line Start ............................... 56
FIG. 14 - Electronic Panel (Front Inside View)
Across-The Line Start ................................ 57
FIG. 15 - Elementary Diagram: Wye-Delta Start ...... 58
FIG. 16 - Power Panel (Front Inside View)
Wye-Delta Start .......................................... 62
FIG. 17 - Electronic Panel (Front Inside View)
Wye-Delta Start .......................................... 63
FIG. 18 - Connection Diagram ................................. 64
FIG. 19 - Detail "A" .................................................... 65
FIG. 20 - Connection Diagram System Wiring ........ 66
FIG. 21 - Sensor Connection ................................... 66
FIG. 22 - Compressor (Systems 1 & 2) ................... 66
TABLE 1 - Motor Protector Dip Switch Settings ...................................................................................... 20
TABLE 2 - Condenser Fan Control and Fan Contactor Data for DXST Units with 4 Fans System .... 141
TABLE 3 - Condenser Fan Control and Fan Contactor Data for DXST Units with 5 Fans System .... 141
YORK INTERNATIONAL
LIST OF FIGURES
FIG. 23 - Compressor Terminal Boxes .................... 67
FIG. 24 - Detail "B" .................................................... 68
FIG. 25 - Detail "C" ................................................... 69
FIG. 26 - Isolator Details .......................................... 80
FIG. 27 - Isolator Details .......................................... 81
FIG. 28 - Isolator Locations ...................................... 82
FIG. 29 - Clearances ................................................ 83
FIG. 30 - Refrigerant Flow Diagram ......................... 84
FIG. 31 - Process & Instrumentation Diagram ........ 85
FIG. 32 - Component Locations .............................. 86
FIG. 33 - Component Locations .............................. 87
FIG. 34 - Component Locations .............................. 88
FIG. 35 - Component Locations .............................. 89
FIG. 36 - Component Locations .............................. 90
FIG. 37 - Component Locations .............................. 91
FIG. 38 - Component Locations .............................. 92
FIG. 39 - Motor Protector ........................................ 101
FIG. 40 - Component Layout .................................. 104
FIG. 41 - Logic Section Layout ............................... 105
FIG. 42 - Suction Pressure Cutout ......................... 114
FIG. 43 - Enlarged Photograph of Dip Switches
FIG. 44 - Condenser Fan Layout for DXST
FIG. 45 - Operating Log .......................................... 143
LIST OF TABLES
on Microprocessor Board ........................ 119
2-Compressor Units ............................... 141
FORM 201.18-NM2
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