Johnson Controls YORK Tempo YLAA Series User Manual

JOHNSON CONTROLS
8
FORM 150.72-NM1 (1020)
SECTION 6 – COMMISSIONING ..................................................................................................................119
PREPARATION – POWER OFF .............................................................................................................119
Inspection ..........................................................................................................................................119
Refrigerant Charge ............................................................................................................................119
Service and Oil Line Valves .............................................................................................................. 119
Compressor Oil ..................................................................................................................................119
Fans ...................................................................................................................................................119
Isolation / Protection .........................................................................................................................119
Control Panel .....................................................................................................................................119
Power Connections ...........................................................................................................................119
Grounding ..........................................................................................................................................119
Supply Voltage ...................................................................................................................................119
PREPARATION – POWER ON ...............................................................................................................120
Switch Settings ..................................................................................................................................120
Compressor Heaters .........................................................................................................................120
Water System .....................................................................................................................................120
Flow Switch ........................................................................................................................................120
Temperature Sensor(s) .....................................................................................................................120
EQUIPMENT PRE-STARTUP AND STARTUP CHECKLIST ............................................................... 121
Pre-Startup .........................................................................................................................................121
Startup ................................................................................................................................................121
SETPOINTS ENTRY LIST ....................................................................................................................... 122
CHECKING SUPERHEAT AND SUBCOOLING ...................................................................................123
LEAK CHECKING ....................................................................................................................................123
UNIT OPERATING SEQUENCE ............................................................................................................. 124
SECTION 7 – UNIT CONTROLS ...................................................................................................................125
INTRODUCTION ......................................................................................................................................125
IPU II and I/O Boards .........................................................................................................................125
Unit Switch .........................................................................................................................................126
Display ................................................................................................................................................126
Keypad ................................................................................................................................................ 126
Battery Back-up .................................................................................................................................126
Transformer .......................................................................................................................................126
Programming # of Compressors ......................................................................................................126
STATUS KEY ........................................................................................................................................... 127
Unit Status .......................................................................................................................................... 127
General Status Messages .................................................................................................................127
Fault Safety Status Messages ..........................................................................................................129
System Safeties .................................................................................................................................129
Unit Safeties .......................................................................................................................................131
Unit Warning ......................................................................................................................................131
Status Key Messages ........................................................................................................................ 132
TABLE OF CONTENTS (CONT’D)

Johnson Controls YORK Tempo YLAA Series Specifications

General

Brand	Johnson Controls
Model	YORK Tempo YLAA Series
Category	Chiller
Language	English