York YCAL Series Installation Operation & Maintenance page 7

FORM 150.66-NM3
ISSUE DATE: 09/25/2020
PREPARATION - POWER ON ...........................................................................................................40
Switch Settings ...............................................................................................................................40
Compressor Heaters ......................................................................................................................40
Water System ..................................................................................................................................40
Flow Switch .....................................................................................................................................40
Temperature Sensor(s) ..................................................................................................................40
EQUIPMENT PRE-STARTUP AND STARTUP CHECKLIST ..........................................................41
Pre-Startup ......................................................................................................................................41
Startup .............................................................................................................................................41
CHECKING SUPERHEAT AND SUBCOOLING ...............................................................................43
LEAK CHECKING ...............................................................................................................................43
UNIT OPERATING SEQUENCE ........................................................................................................44
SECTION 6 - TECHNICAL DATA .............................................................................................................45
OPERATIONAL LIMITATIONS (ENGLISH) ......................................................................................45
Voltage Limitations ........................................................................................................................45
OPERATIONAL LIMITATIONS (SI) ...................................................................................................47
Voltage Limitations ........................................................................................................................47
PHYSICAL DATA (ENGLISH) ............................................................................................................50
SOUND DATA (ENGLISH) ..................................................................................................................52
ELECTRICAL DATA ............................................................................................................................54
ELECTRICAL NOTES AND LEGEND ...............................................................................................57
WIRING DIAGRAMS ...........................................................................................................................58
DIMENSIONS.......................................................................................................................................64
TECHNICAL DATA - CLEARANCES ................................................................................................92
ISOLATORS .........................................................................................................................................93
General ............................................................................................................................................93
Installation of 1" Deflection Mounts .............................................................................................95
SECTION 7 - UNIT CONTROLS ...............................................................................................................99
YORK MILLENNIUM CONTROL CENTER .......................................................................................99
INTRODUCTION .................................................................................................................................99
MICROPROCESSOR BOARD ...........................................................................................................99
UNIT SWITCH ....................................................................................................................................100
DISPLAY ............................................................................................................................................100
KEYPAD .............................................................................................................................................100
BATTERY BACK-UP .........................................................................................................................100
TRANSFORMER ..............................................................................................................................100
SINGLE SYSTEM SELECT AND PROGRAMMING # OF COMPRESSORS ..............................100
STATUS KEY .....................................................................................................................................101
Unit Status ....................................................................................................................................101
General Status Messages ............................................................................................................101
Fault Safety Status Messages .....................................................................................................103
System Safeties ............................................................................................................................103
Unit Safeties ..................................................................................................................................105
Unit Warning .................................................................................................................................105
JOHNSON CONTROLS
TABLE OF CONTENTS (CONT'D)
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