Table Of Contents - York YCAS Series Installation Operation & Maintenance

SECTION 1 - GENERAL CHILLER
INFORMATION & SAFETY......... 9
INTRODUCTION ........................................................ 9
WARRANTY ............................................................... 9
SAFETY...................................................................... 9
Standards for Safety ......................................................9
RESPONSIBILITY FOR SAFETY ............................ 10
ABOUT THIS MANUAL ............................................ 10
MISUSE OF EQUIPMENT ....................................... 10
Suitability for Application ...........................................10
Structural Support........................................................10
Mechanical Strength....................................................10
General Access ............................................................10
Pressure Systems .........................................................10
Electrical......................................................................11
Rotating Parts ..............................................................11
Sharp Edges .................................................................11
Refrigerants and Oils...................................................11
High Temperature and Pressure Cleaning ...................11
EMERGENCY SHUTDOWN .................................... 11
SECTION 2 - PRODUCT DESCRIPTION ........ 12
INTRODUCTION ...................................................... 12
General Description.....................................................12
Compressor..................................................................12
Evaporator ...................................................................13
Condenser ....................................................................13
Economizer..................................................................14
Oil Separator/System...................................................14
Capacity Control..........................................................15
Power and Control Panel .............................................15
Microprocessor Controls .............................................15
Motor Current Protection ............................................15
Motor Protection Modules (2ACE) .............................16
Current Overload .........................................................16
Thermal Overload........................................................17
Current Imbalance (Loaded & Unloaded)/..................17
Loss of Phase...............................................................17
Improper Phase Sequence............................................17
MOTOR STARTING ................................................. 20
KEYPAD CONTROLS .............................................. 20
Display.........................................................................20
Program .......................................................................21
ACCESSORIES AND OPTIONS .............................. 21
Multiple Point Power Connection ...............................21
Single-Point Power Connection with Individual Circuit
Protection ....................................................................21
Control Circuit Terminal Block ...................................21
Building Automation System (BAS) Interface............21
Condenser Coil Protection ..........................................21
DX EVAPORATOR AND STARTER OPTIONS ........ 22
UNIT ENCLOSURE OPTIONS................................. 22
4

TABLE OF CONTENTS

FAN OPTIONS ......................................................... 22
SOUND REDUCTION OPTIONS ............................. 22
VIBRATION ISOLATION ......................................... 22
UNIT NOMENCLATURE .......................................... 23
NAMEPLATE ENGINEERING DATA........................ 23
PRODUCT IDENTIFICATION NUMBER (PIN) ........ 24
DELIVERY AND STORAGE ..................................... 25
SECTION 3 - HANDLING AND STORAGE ..... 25
INSPECTION............................................................ 25
MOVING THE CHILLER........................................... 25
Lifting Weights ............................................................25
UNIT RIGGING................................................. 26
SECTION 4 - INSTALLATION ......................... 27
LOCATION REQUIREMENTS ................................. 27
OUTDOOR INSTALLATIONS................................... 27
INDOOR INSTALLATIONS....................................... 27
LOCATION CLEARANCES ...................................... 27
COMPRESSOR FEET BOLT REMOVAL ................. 28
VIBRATION ISOLATORS ........................................ 29
Installation ...................................................................29
SHIPPING BRACES ................................................ 29
PIPEWORK CONNECTION ..................................... 29
General Requirements .................................................29
WATER TREATMENT .............................................. 30
PIPEWORK ARRANGEMENT ................................. 31
CONNECTION TYPES & SIZES.............................. 31
EVAPORATOR CONNECTIONS.............................. 31
Option Flanges.............................................................31
REFRIGERANT RELIEF VALVE PIPING ................. 31
DUCTWORK CONNECTION ................................... 31
General Requirements .................................................31
ELECTRICAL CONNECTION .................................. 32
POWER WIRING...................................................... 32
STANDARD UNITS WITH MULTI POINT POWER
SUPPLY WIRING ..................................................... 32
Units with Single-Point Power Supply Wiring............32
115VAC CONTROL SUPPLY TRANSFORMER....32
Remote Emergency Stop Device.................................33
CONTROL PANEL WIRING ..................................... 33
VOLTS FREE CONTACTS....................................33
Chilled Liquid Pump Starter........................................33
Run Contact .................................................................33
Alarm Contacts............................................................33
SYSTEM INPUTS..................................................... 33
Flow Switch.................................................................33
Remote Run / Stop.......................................................33
Remote Print................................................................33
Remote Setpoint Offset - Temperature .......................33
Remote Setpoint Offset - Current ...............................33
FORM 201.19-NM8 (804)
YORK INTERNATIONAL