York YCAS0210 - Page 3

3YORK INTERNATIONAL
FORM 201.18-NM1 (102)
TABLE OF CONTENTS (CONT’D)
Electrical Connection ............................................ 29
Power Wiring ......................................................... 29
Standard Units with Multi Point Power Supply
Wiring ..................................................................... 29
Units with Single-Point Power Supply Wiring .... 29
115VAC Control Supply Transformer................. 29
Remote Emergency Stop Device ......................... 30
Control Panel Wiring ............................................ 30
Volts Free Contacts................................................ 30
Chilled Liquid Pump Starter ................................ 30
Run Contact.......................................................... 30
Alarm Contacts .................................................... 30
System Inputs ......................................................... 30
Flow Switch ......................................................... 30
Remote Run/Stop ................................................. 30
Remote Print ........................................................ 30
Remote Setpoint Offset – Temperature ............... 30
Remote Setpoint Offset – Current ....................... 30
Power and Control Panel Layouts
(Wye-Delta Typical)............................................... 31
Options Panel Layout (Typical) ........................... 32
Logic Section Layout............................................. 33
Logic Section Layout with Control
Panel Layout .......................................................... 34
Customer Connections .......................................... 35
SECTION 5 COMMISSIONING
Preparation ............................................................ 37
Preparation – Power Off ...................................... 37
First Time Start-up................................................ 39
SECTION 6 OPERATION
General Description .............................................. 40
Start-up................................................................... 40
Normal Running and Cycling .............................. 40
Shutdown ................................................................ 40
SECTION 7 TECHNICAL DATA
Flow Rate and Pressure Drop Charts ................. 41
Glycol Correction Factors .................................... 41
Temperature and Flows ........................................ 42
Physical Data (English & SI Units)...................... 43
Operating Limitations & Sound Power Data ..... 44
Electrical Data ......................................................... 46
Multiple Point Power Supply Connection............. 46
Optional Single-Point Power Supply Connection
and Individual System Circuit Breakers .............. 48
Optional Single-Point Power Supply Connection
with Field Supplied Circuit Protection ................ 50
Optional Single-Point Power Supply
Connection to Factory Circuit Breaker................ 51
Compressor Data.................................................. 52
Fan Data ............................................................... 52
Electrical Notes ...................................................... 53
Wiring Diagram – Across-the-Line Start............ 54
Elementary Diagram – Across-the-Line Start.... 56
Panel Component Locations................................. 58
Wiring Diagram – Wye-Delta Start..................... 60
Elementary Diagram – Wye-Delta Start ............. 62
Panel Component Locations................................. 64
Connection Diagram ............................................. 68
Compressor Terminal Box .................................... 69
Dimensions.............................................................. 72
YCAS0130 - 0180 (English) ............................... 72
YCAS0130 - 0180 (SI) ........................................ 74
YCAS0200 - 0230 (English) ............................... 76
YCAS0200 - 0230 (SI) ........................................ 78
Clearances .............................................................. 80
Weight Distribution and Isolator Mounting
Positions.................................................................. 81
Isolator Installation Instructions for VMC Series
AWR/AWMR Isolator and CP Restrained Mountings ...89
Refrigerant Flow Diagram ...................................... 90
Process and Instrumentation Diagram .................. 91
Component Locations .............................................. 92
Compressor Components ........................................ 93
System Start-up Checklist ..................................... 99
Unit Checks ........................................................... 99
Panel Checks ....................................................... 100
Initial Start-up ....................................................... 101
Checking Subcooling and Superheat ................... 101
Checking Economizer Superheat ......................... 102
Leak Checking ..................................................... 102