York MILLENNIUM YCAS Installation Operation & Maintenance page 3

SECTION 7 TECHNICAL DATA
Temperatures and Flows ...................................................................................................................... 41
Water Pressure Drop ............................................................................................................................ 41
Glycol Correction Factors ...................................................................................................................... 42
Physical Data ....................................................................................................................................... 43
Operating Limitations ...................................................................................................................... 43
Sound Power Data ........................................................................................................................... 43
R-22 Refrigerant ............................................................................................................................... 44
R-407C Refrigerant .......................................................................................................................... 45
Electrical Data ....................................................................................................................................... 46
Multiple Point Power Supply Connection ........................................................................................ 46
Optional Single Point Power Supply Connection with Internal Unit Circuit Breakers ................... 48
Optional Single Point Power Supply Connection to Factory Circuit Breaker ................................. 48
Control Power Supply ...................................................................................................................... 48
Compressor Data ............................................................................................................................ 48
Fan Data ....................................................................................................................................... 48
Electrical Notes & Legend ............................................................................................................... 49
Power Connection Options ................................................................................................................... 50
Multiple Point Power Supply Connection ........................................................................................ 50
Optional Single Point Power Supply Connection with Internal Unit Circuit Breakers ................... 50
Optional Single Point Power Supply Connection to Factory Circuit Breaker ................................. 51
Wiring Diagrams ................................................................................................................................... 52
Dimensions ....................................................................................................................................... 70
YCAS0373 - YCAS0503 ................................................................................................................... 70
YCAS0543 - YCAS0623 ................................................................................................................... 72
YCAS0653 ....................................................................................................................................... 74
Operating Weights - Aluminum Fin Coils ............................................................................................ 76
Isolator Selection - Aluminum Fin Coils .............................................................................................. 77
Operating Weights - Copper Fin Coils ................................................................................................. 78
Isolator Selection - Copper Fin Coils ................................................................................................... 79
Refrigerant Flow Diagram .................................................................................................................... 84
Process and Instrumentation Diagram ............................................................................................... 85
Component Locations .......................................................................................................................... 86
Compressor Components ................................................................................................................... 87
SECTION 8 START-UP
System Startup Checklist ...................................................................................................................... 93
SECTION 9 MICROPANEL
Chiller Control Panel Programming & Data Access ...................................................................... 97
Display and Status Information Keys .............................................................................................. 97
Program & Setup Keys ..................................................................................................................... 97
1. INTRODUCTION & PHYSICAL DESCRIPTION ............................................................................... 98
1.1 General ................................................................................................................................... 98
1.2 Keypad & Display .................................................................................................................... 98
1.3 Unit (Chiller) ON / OFF Switch ................................................................................................ 98
1.4 Microprocessor Board ............................................................................................................ 98
1.5 Ancillary Circuit Boards .......................................................................................................... 99
1.6 Circuit Breakers .................................................................................................................... 100
1.7 Current Transformers (C.T.) ................................................................................................. 100
1.8 Transformers ........................................................................................................................ 100
1.9 Motor Protection Modules ..................................................................................................... 100
1.10 EMS/BAS Connections ......................................................................................................... 102
1.11 Microprocessor Board Layout .............................................................................................. 104
1.12 Logic Section Layout ............................................................................................................ 105
1.13 Anti-Recycle Timer ................................................................................................................ 106
1.14 Anti-Coincidence Timer ........................................................................................................ 106
1.15 Evaporator Pump Control ..................................................................................................... 106
1.16 Compressor Heater Control ................................................................................................ 106
YORK INTERNATIONAL
TABLE OF CONTENTS
FORM 201.18-NM2
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