York YCAS0295EB Manuals

York YCAS0295EB Manuals

Manuals and User Guides for York YCAS0295EB. We have 1 York YCAS0295EB manual available for free PDF download: Installation Operation & Maintenance

York YCAS0295EB Installation Operation & Maintenance

York YCAS0295EB Installation Operation & Maintenance (194 pages)

AIR-COOLED SCREW LIQUID CHILLERS

Brand: York | Category: Chiller | Size: 4.69 MB

Table of Contents

Table of Contents
4
Section 1 - General Chiller

9
- Warranty
  9
- 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
    10
  - Rotating Parts
    11
  - Sharp Edges
    11
  - Refrigerants and Oils
    11
  - High Temperature and Pressure Cleaning
    11
  - Emergency Shutdown
    11
- Responsibility for Safety
  10
- Fig. 1 - Component Locations
  12
  - Evaporator
    13
  - Condenser
    13
- Introduction
  12
  - General Description
    12
  - Compressor
    12
- Introduction
  9
- Safety
  9
  - Standards for Safety
    9
Section 2 - Product Description

12
- Fig. 2 - Screw Compressor
  13
  - Economizer
    14
  - Oil Separator/System
    14
  - Oil Cooling
    14
  - Capacity Control
    14
  - Power and Control Panel
    14
  - Each Power Compartment Contains
    15
  - The Control Section Contains
    15
  - The Options Sections Contain
    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
  - TABLE 1 - Motor Protector Dip Switch Setting
    18
- Keypad Controls
  20
  - Display
    20
  - Program
    21
- Motor Starting
  20
- Accessories and Options
  21
- DX Evaporator and Starter Options
  22
- Fan Options
  22
- Sound Reduction Options
  22
- Unit Enclosures Options
  22
- Vibration Isolation
  22
- Nameplate Engineering Data
  23
- Unit Nomenclature
  23
- Product Identification Number (Pin)
  24
- Delivery and Storage
  25
- Inspection
  25
- Moving the Chiller
  25
  - Lifting Weights
    25
Section 3 - Handling and Storage

25
- Fig. 3 - Unit Rigging
  26
- Fig. 4 - Lifting Lugs
  26
- Unit Rigging
  26
- Indoor Installations
  27
- Location Clearances
  27
- Location Requirements
  27
- Outdoor Installations
  27
Section 4 - Installation

27
- Compressor Feet Bolt Removal
  28
- Fig. 5 - Compressor Mounting
  28
- Pipework Connection
  29
  - General Requirements
    29
- Shipping Braces
  29
- Vibration Isolators
  29
  - Installation
    29
- Fig. 6 -.Pipework Arrangement
  30
- Water Treatment
  30
- Connection Types & Sizes
  31
- Ductwork Connection
  31
  - General Requirements
    31
- Evaporator Connections
  31
  - Optional Flanges
    31
- Fig. 7 - Victaulic Groove
  31
- Fig. 8 - Flange Attachments
  31
- Pipework Arrangement
  31
- Refrigerant Relief Valve Piping
  31
- 115Vac Control Supply Transformer
  32
  - Remote Emergency Stop Device
    33
- Electrical Connection
  32
- Power Wiring
  32
- Standard Units with Multi Point Power Supply Wiring
  32
  - Units with Single-Point Power Supply Wiring
    32
- Control Panel Wiring
  33
- System Inputs
  33
  - Flow Switch
    33
  - Remote Run / Stop
    33
  - Remote Print
    33
- Volts Free Contacts
  33
  - Chilled Liquid Pump Starter
    33
  - Run Contact
    33
  - Alarm Contacts
    33
- Fig. 9 - Power Panel Section
  34
- Fig. 10 - Option Panel Section
  35
- Fig. 11 - Logic Section Layout
  36
- Fig. 12 - Logic Section Layout with
  37
- Fig. 13 - Customer Connections
  38
- Fig. 14 - Customer Connections
  39
- Preparation
  40
- Preparation - Power off
  40
  - Inspection
    40
  - Refrigerant Charge
    40
  - Valves
    40
  - Compressor Oil
    40
  - Fans
    40
  - Isolation/Protection
    40
  - Control Panel
    40
  - Switch Settings
    41
  - Crankcase Heaters
    41
  - Water System
    41
  - Flow Switch
    41
  - Temperature Sensor(S)
    41
  - Control Supply
    41
  - Programmed Options
    41
  - Programmed Settings
    41
  - Date and Time
    41
  - Start/Stop Schedule
    41
Section 5 - Commissioning

40
- First Time Start-Up
  42
  - Interlocks
    42
  - System Switches
    42
  - Start-Up
    42
  - Oil Pressure
    42
  - Refrigerant Flow
    42
  - Fan Rotation
    42
  - Suction Superheat
    42
  - Expansion Valve
    42
  - Economizer Superheat
    42
- General Description
  44
- Normal Running and Cycling
  44
Section 6 - Operation

44
- Shutdown
  44
- Start-Up
  44
- Fig. 15 - Flow Rate and Pressure Drop
  46
- Fig. 16 - Glycol Correction Factors
  46
- Flow Rate and Pressure Drop Charts
  46
- Glycol Correction Factors
  46
Section 7 - Technical Data

46
- Temperature and Flows
  47
- Physical Data
  48
- Operating Limitations and Sound Power Data
  49
  - Electrical Data
    50
  - Electrical Notes
    58
- Fig. 17 - Wiring Diagram - Across-The-Line Start
  60
- Wiring Diagram
  60
- Fig. 18 - Wiring Diagram - Across-The-Line Start
  61
- Elementary Diagram
  62
- Fig. 19 - Elementary Diagram - Across-The-Line Start
  62
- Fig. 20 - Wiring Diagram - Wye-Delta Start
  64
- Fig. 21 - Elementary Diagram - Wye-Delta Start
  65
- Fig. 22 - Elementary Diagram - Wye-Delta Start
  66
- Fig. 23 - Power Panel (System #1)
  68
- Fig. 24 - Control Panel Component Location
  69
- Fig. 25 - Power Panel (System #2)
  70
- Connection Diagram (System Wiring)
  73
- Compressor Terminal Box
  74
- Fig. 26 - Dimensions Ycas0295 - 0375
  78
- Dimensions-Ycas0295-Ycas0375
  79
- Dimensions-Ycas0425-Ycas0575
  80
- Fig. 27 - Dimensions Ycas0425- 0575
  80
- Dimensions-Ycas0605
  82
- Fig. 28 - Dimensions Ycas0605
  82
- Fig. 29 - Clearances
  84
- Technical Data
  84
- Weight Distribution and Isolator Mounting Positions
  85
- Fig. 30 - Cp-2-XX
  86
- Fig. 31 - Isolator Details
  87
- Fig. 32 - Cp-2-XX
  90
- Fig. 33 - Isolator Details
  91
- Fig. 34 - Cp-2-XX
  94
- Fig. 35 - Isolator Details
  95
- Fig. 36- Cp-2-XX
  98
- Fig. 37 - Isolator Details
  99
- Installation Instructions for VMC Series Awr/Awmr and Cp Restrained Mountings
  101
- Fig. 38 - Refrigerant Flow Diagram
  102
- Fig. 39 - Process and Instrumentation Diagram
  103
- Component Locations
  104
- Fig. 40 - Component Locations
  104
- Compressor Components
  105
- Fig. 41 - Compressor Components
  105
- Fig. 42 - Compressor Components
  106
- Fig. 43 - Compressor Components
  107
- Fig. 44 - Compressor Components
  108
- Fig. 45 - Compressor Components
  109
- Fig. 46 - Compressor Components
  110
- System Startup Checklist
  111
- Unit Checks (no Power)
  111
- Panel Checks
  112
- Programmed Values
  112
- Checking Subcooling and Superheat
  113
- Initial Start-Up
  113
- Checking Economizer Superheat
  114
- Leak Checking
  114
- Chiller Control Panel Programming and Data Access Keys
  116
- Display and Status Information Keys
  116
- On / off Rocker Switch
  116
- Program & Setup Keys
  116
1 Introduction & Physical Description

117
- 1.1 General
  117
- 1.2 Keypad & Display
  117
- 1.3 Unit (Chiller) on / off Switch
  118
- 1.4 Microprocessor Board
  118
- 1.5 Ancillary Circuit Boards
  118
- 1.6 Circuit Breakers
  119
- 1.8 Transformers
  119
- 1.9 Motor Protection Modules
  119
- Fig. 47 - Motor Protection Module
  121
  - EMS/BAS Controls
    122
  - Microprocessor Board Layout
    124
- Fig. 48 - Component Layout
  124
  - Logic Section Layout
    125
- Fig. 49 - Logic Section Layout
  125
  - Anti-Recycle Timer
    126
  - Anti-Coincidence Timer
    126
  - Evaporator Pump Control
    126
  - Compressor Heater Control
    126
  - Evaporator Heater Control
    126
  - Pumpdown (EEV) Control
    126
  - Alarms
    127
  - Run Status (Chiller)
    127
  - Lead / Lag Compressor Selection
    127
  - Economizer Solenoid Control
    128
- Fig. 50 - Process and Instrumentation Diagram
  129
2 Status Key: General Status Messages & Fault Warnings

130
- General
  130
- General Status Messages
  130
- Unit Warnings
  131
- Anticipation Control Status
  132
- Unit Fault Status Messages
  133
- System Fault (SAFETY) Status
  134
- Fig. 51 - Suction Pressure Cutout
  135
  - Printout on Fault Shutdown
    137
3 Display Keys & Option Switches

138
- General
  138
- Chilled Liquid Temps Key
  138
- System # Data Keys
  139
- Ambient Temp Key
  139
- Motor Current Key
  140
- Operating Hrs / Start Counter Key
  140
- Options Key
  140
- Fig. 52 - Enlarged Photograph of Dip Switches on Microprocessor Board
  141
  - Function Key
    142
4 Print Keys

143
- General
  143
- Oper Data Key
  143
- Operating Data - Software Version
  143
- Operating Data - Remote Printout
  145
- History Key
  146
- Fault History Data - Local Display Messages
  146
- Fault History Data - Remote Printout
  150
5 Entry Keys

151
- General
  151
- Numerical Keypad
  151
- Enter Key
  151
- Cancel Key
  151
- Keys
  151
6 Setpoints Keys & Chilled Liquid Control

152
- General
  152
- Chilled Liquid Temperature Control
  152
- Local Cooling Setpoints Key
  156
- Remote Cooling Setpoints Key
  156
7 Clock Keys

157
- General
  157
- Set Time Key
  157
- Set Schedule / Holiday Key
  158
- 7.4 Manual Override Key
  159
8 Program Key

160
- General
  160
- Program Key - User Programmable Value
  160
- Programming "Default" Values
  164
- 8.4 Electronic Expansion Valve
  166
- Fig. 53 - Electronic Expansion Valve
  166
  - 8.5 Eev Operation
    167
  - 8.6 Eev Programming
    169
    
    (Minimum/Maximum)
    169
    
    TABLE 2 - Programmable Values Table
    169
  - 8.7 Eev Troubleshooting
    170
  - 8.8 Condenser Fan Control
    171
- Fig. 54 - Condenser Fan Layout for
  171
  - Data for DXST Units with 4 Fans/System
    172
  - Data for DXST Units with 5 Fans/System
    172
  - TABLE 3 - Condenser Fan Control and Fan Contactor
    172
  - TABLE 4 - Condenser Fan Control and Fan Contactor
    172
  - 8.9 Service Mode: Unit Setup
    173
  - TABLE 5 - Service Mode Programmable Values
    173
  - TABLE 6 - YCAS Style G, Across the Line Start
    174
  - TABLE 7 - YCAS Style G, Wye Delta Start
    174
  - 8.10 Sensor Calibration Charts
    176
  - 8.11 Control Inputs/Outputs
    177
  - TABLE 8 - Digital Outputs
    177
  - TABLE 9 - Analog Inputs
    178
  - TABLE 10 - Digital Inputs
    179
  - TABLE 11 - Analog Outputs
    179
  - 8.12 Isn Control
    180
  - TABLE 12 - ISN Received Data
    180
  - TABLE 13 - ISN Transmitted Data
    180
  - TABLE 14 - ISN Operational and Fault Codes
    183
Section 9 - Maintenance

184
- General Requirements
  184
- Condenser Coils
  184
  - Chiller / Compressor Operating Log
    185
  - Scheduled Maintenance
    185
- On-Board Battery Back-Up
  185
- Overall Unit Inspection
  185
- General Periodic Maintenance Checks Standard Units
  188
  - Recommended Spares
    189
  - Recommended Compressor Oils
    189
- Troubleshooting Guide
  190
- Limited Warranty York Americas Engineered Systems
  192
- Warranty on New Equipment
  192
- Warranty on Reconditioned
  192
- Replacement Materials
  192
- Temperature Conversion Chart
  193
- Actual Temperatures
  193
- Temperature Conversion Chart Differential Temperatures
  193
- Pressure Conversion Chart - Gauge or Differential
  193

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