Volts Free Contacts ............................................................................................................................... 35
System Inputs ....................................................................................................................................... 35
5
....................................................................................................................................... 42
Preparation - Power Off ........................................................................................................................ 42
First Time Start-up ................................................................................................................................. 44
6
General Description ............................................................................................................................... 45
....................................................................................................................................... 45
Normal Running and Cycling ................................................................................................................ 45
....................................................................................................................................... 45
7
Glycol Correction Factors ...................................................................................................................... 47
Physical Data ....................................................................................................................................... 48
Temperatures and Flows ....................................................................................................................... 52
Electrical Data57
Electrical Notes ................................................................................................................................. 53
Control Power Supply ....................................................................................................................... 53
Electrical Legend .............................................................................................................................. 53
Power Connection Options ............................................................................................................... 58
Wiring Diagrams .................................................................................................................................... 60
....................................................................................................................................... 78
....................................................................................................................................... 90
Isolator Dimensions ............................................................................................................................... 91
Refrigerant Flow Diagram ..................................................................................................................... 96
8
System Startup Checklist ...................................................................................................................... 98
Panel Checks ....................................................................................................................................... 99
Initial Start-Up ....................................................................................................................................... 99
Leak Checking ..................................................................................................................................... 101
SECTION
9
MICRO PANEL
On / Off Rocker Switch ................................................................................................................... 102
Program and Setup Keys ............................................................................................................... 102
1.1
General .................................................................................................................................. 103
1.2
Keypad and Display .............................................................................................................. 103
1.3
1.4
Microprocessor Board ........................................................................................................... 103
1.5
Ancillary Circuit Boards ......................................................................................................... 104
YORK INTERNATIONAL
TABLE OF CONTENTS (CONTINUED)
FORM 150.52-NM2 (1001)
3