3
YORK INTERNATIONAL
FORM 150.52-NM2 (1001)
TABLE OF CONTENTS (CONTINUED)
115VAC Control Supply Transformer .................................................................................................... 34
Control Panel Wiring (Terminals 13 - 19) .............................................................................................. 34
Volts Free Contacts ............................................................................................................................... 35
System Inputs ....................................................................................................................................... 35
SECTION
5
COMMISSIONING
Preparation
....................................................................................................................................... 42
Preparation – Power Off ........................................................................................................................ 42
First Time Start-up ................................................................................................................................. 44
SECTION
6
OPERATION
General Description ............................................................................................................................... 45
Start-up
....................................................................................................................................... 45
Normal Running and Cycling ................................................................................................................ 45
Shutdown
....................................................................................................................................... 45
SECTION
7
TECHNICAL DATA
Flow Rate and Pressure Drop Charts ................................................................................................... 46
Glycol Correction Factors ...................................................................................................................... 47
Physical Data ....................................................................................................................................... 48
Temperatures and Flows ....................................................................................................................... 52
Electrical Data57
Electrical Notes ................................................................................................................................. 53
Control Power Supply ....................................................................................................................... 53
Electrical Legend .............................................................................................................................. 53
Multiple Point Power Supply Connection ......................................................................................... 54
Optional Single-Point Power Supply Connection with Internal Unit Circuit Breakers ..................... 56
Power Connection Options ............................................................................................................... 58
Wiring Diagrams .................................................................................................................................... 60
Dimensions
....................................................................................................................................... 78
Clearances
....................................................................................................................................... 90
Isolator Dimensions ............................................................................................................................... 91
Weight Distribution – Aluminum Fin Coils ............................................................................................ 92
Isolator Selection – Aluminum Fin Coils ............................................................................................... 93
Weight Distribution – Copper Fin Coils ................................................................................................. 94
Isolator Selection – Copper Fin Coils ................................................................................................... 95
Refrigerant Flow Diagram ..................................................................................................................... 96
Process and Instrumentation Diagram ................................................................................................. 97
SECTION
8
START-UP
System Startup Checklist ...................................................................................................................... 98
Panel Checks ....................................................................................................................................... 99
Initial Start-Up ....................................................................................................................................... 99
Checking Subcooling and Superheat ................................................................................................. 100
Leak Checking ..................................................................................................................................... 101
SECTION
9
MICRO PANEL
Chiller Control Panel Programming and Data Access ................................................................... 102
Display and Status Information Keys ............................................................................................. 102
On / Off Rocker Switch ................................................................................................................... 102
Program and Setup Keys ............................................................................................................... 102
1. INTRODUCTION and PHYSICAL DESCRIPTION ........................................................................ 103
1.1
General .................................................................................................................................. 103
1.2
Keypad and Display .............................................................................................................. 103
1.3
Unit (Chiller) ON / OFF Switch .............................................................................................. 103
1.4
Microprocessor Board ........................................................................................................... 103
1.5
Ancillary Circuit Boards ......................................................................................................... 104