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
Refrigerants and Oils .............................................. 8
High Temperature and Pressure Cleaning .............. 8
Emergency Shutdown ................................................ 8
2
Introduction ............................................................... 9
Compressor ............................................................ 9
Motor Starting ...................................................... 10
Capacity Control .................................................. 10
Oil Separator ........................................................... 11
Oil Cooler ................................................................. 11
Refrigerant Circuits ............................................... 11
Condenser ............................................................... 11
Cooler ....................................................................... 11
Power and Control Panels ....................................... 12
Microprocessor Controls ........................................ 12
Motor Current Protection ....................................... 12
Motor Protector Module ...................................... 13
Current Overload .................................................. 13
Thermal Overload ................................................. 13
Current Unbalance / Loss of Phase ...................... 13
Improper Phase Sequence .................................... 13
Keypad Controls ..................................................... 13
Status Key ............................................................ 13
Display Keys ........................................................ 14
Print Keys .............................................................. 14
Entry Keys ........................................................... 14
Setpoints Keys ..................................................... 14
Clock Keys ........................................................... 14
Program Key ......................................................... 14
Accessories and Options ....................................... 14
Alternative Refrigerants ........................................ 14
Electrical Options ................................................... 14
YORK INTERNATIONAL
TABLE OF CONTENTS
Accessories ............................................................ 15
Nomenclature ......................................................... 16
Functional Description .......................................... 16
SECTION
Delivery and Storage .............................................. 17
Inspection ............................................................... 17
Moving the Unit ...................................................... 17
Control Panel Removal .......................................... 18
Lifting Weights ...................................................... 18
Location Requirements .......................................... 19
Installation of Vibration Isolators ......................... 19
Pipework Connection ............................................. 19
Water Treatment .................................................... 20
Pipework Arrangement ......................................... 21
Connection Types & Sizes ..................................... 21
Refrigerant Relief Valve Piping ............................ 22
Condenser Cooling Liquid Systems ...................... 22
Condenser Piping ................................................... 22
Electrical Connection ............................................. 24
Power Wiring ......................................................... 24
Common Input Section Wiring .............................. 25
Control Panel Wiring ............................................ 25
Aternative Chilled Fluid Applications ................. 15
3
TRANSPORTATION, HANDLING
AND STORAGE
Lifting by Crane / Hoist ........................................ 17
Lifting by Fork Lift ............................................... 18
4
General Requirements ........................................... 19
Glycol Solutions ................................................... 20
Research Association .......................................... 21
Cooler Connections .............................................. 21
Option Flanges ..................................................... 22
Discharge Lines .................................................... 22
Liquid Lines ........................................................... 22
Remote Emergency Stop Device .......................... 25
Chilled Liquid Pump ............................................. 25
Common Run Signal ............................................. 25
System Alarm ....................................................... 25
Flow Switch .......................................................... 25
Remote Run / Stop ............................................... 26
Remote Print (PNT) ............................................... 26
Remote Setpoint Offset - Temperature ................ 26
Remote Setpoint Offset - Current ........................ 26
FORM 201.25-NM1 (302)
3
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