Table of Contents
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1
Introduction ............................................................. 6
Warranty .................................................................. 6
Safety ........................................................................ 6
Standards for Safety .................................................. 6
Responsibility for Safety ......................................... 7
About this Manual ................................................... 7
Misuse of Equipment ............................................... 7
Suitability for Application ......................................... 7
Structural Support ...................................................... 7
Mechanical Strength .................................................. 7
General Access .......................................................... 7
Pressure Systems ....................................................... 7
Electrical .................................................................... 7
Rotating Parts ............................................................ 8
Sharp Edges ............................................................... 8
Refrigerants and Oils ................................................. 8
High Temperature and Pressure Cleaning ................. 8
Emergency Shutdown ............................................. 8
Material Safety Data ............................................... 9
2
Introduction ........................................................... 12
General Description ................................................. 12
Compressor .............................................................. 12
Evaporator ............................................................... 13
Condenser ................................................................ 13
Economizer .............................................................. 14
Oil Separator / System ............................................. 14
Oil Cooling .............................................................. 15
Capacity Control ...................................................... 15
Power and Control Panel ......................................... 15
Microprocessor Controls ......................................... 15
Motor Current Protection ........................................ 15
Motor Protector Module .......................................... 16
Current Overload ..................................................... 16
Thermal Overload .................................................... 17
Current Imbalance ................................................... 17
Improper Phase Sequence ....................................... 17
Motor Protector Dip Switch Settings ...................... 18
Motor Starting ....................................................... 22
Keypad Controls .................................................... 22
Display ..................................................................... 22
Entry ........................................................................ 23
Setpoints .................................................................. 23
Clock ........................................................................ 23
Print ......................................................................... 23
Program ................................................................... 23
Accessories and Options ....................................... 23
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TABLE OF CONTENTS
Multiple Point Power Connection (Standard) ......... 23
with Individual Circuit Protection ........................... 23
with Combined Circuit Protection ........................... 23
without Circuit Protection ....................................... 23
Control Circuit Terminal Block ............................... 23
Building Automation System (BAS) Interface ........ 23
Condenser Coil Protection ...................................... 23
DX Cooler Options ................................................ 24
Pressure .................................................................... 24
1-1/2" (38 mm) Insulation ....................................... 24
Flange Accessory ..................................................... 24
Remote DX Cooler .................................................. 24
Flow Switch Accessory ........................................... 24
Star-Delta Compressor Motor Starter ..................... 24
Unit Enclosures ...................................................... 24
Fans ......................................................................... 24
Sound Reduction Options ..................................... 24
Vibration Isolation ................................................. 24
Engineering Data ................................................... 25
Basic Part Number ................................................... 25
Options Section of Part Number ............................. 25
Delivery and Storage ............................................. 27
Inspection ............................................................... 27
Moving the Chiller ................................................ 27
Lifting Weights ........................................................ 27
Unit Rigging ........................................................... 28
Location Requirements ......................................... 29
Outdoor Installations ............................................ 29
Indoor Installations ............................................... 29
Location Clearances .............................................. 29
Installation of Vibration Isolators ....................... 30
Installation ............................................................... 30
Shipping Braces ..................................................... 30
Pipework Connection ............................................ 30
General Requirements ............................................. 30
Water Treatment .................................................... 31
Pipework Arrangement......................................... 31
Connection Types & Sizes ..................................... 32
Cooler Connections ............................................... 32
Option Flanges ......................................................... 32
Refrigerant Relief Valve Piping ........................... 32
Ductwork Connection ........................................... 32
3
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YORK INTERNATIONAL
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