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eco2 YCAS0555EB
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York eco2 YCAS0555EB manual available for free PDF download: Installation Operation & Maintenance
York eco2 YCAS0555EB Installation Operation & Maintenance (156 pages)
AIR-COOLED SCREW LIQUID CHILLERS
Brand:
York
| Category:
Chiller
| Size: 6.09 MB
Table of Contents
Table of Contents
2
General Safety Guidelines
6
Safety Symbols
6
Changeability of this Document
7
Nomenclature
7
Section 1 General Chiller Information & Safety
8
Introduction
8
Warranty
8
Safety
8
Responsibility for Safety
9
About this Manual
9
Misuse of Equipment
9
Emergency Shutdown
10
Material Safety Data
11
FIG. 1 - Component Locations
15
Section 2 Product Description
15
Introduction
15
General Description
15
FIG. 2 - Screw Compressor
16
TABLE 1 - Motor Protector Dip Switch Settings
20
Keypad Controls
21
Motor Starting
21
Accessories and Options
22
DX Cooler Options
23
Fans
23
Sound Reduction Options
23
Unit Enclosures
23
Vibration Isolation
23
Unit Nomenclature Nameplate Engineering Data
24
Section 3 Handling and Storage
27
Delivery and Storage
27
Inspection
27
Moving the Chiller
27
FIG. 3 - Unit Rigging
28
FIG. 4 - Lifting Lugs
28
Installation
29
Location Requirements
29
Outdoor Installations
29
Indoor Installations
29
Location Clearances
29
Installation of Vibration Isolators
30
Shipping Braces
30
Pipework Connection
30
Water Treatment
31
Pipework Arrangement
31
FIG. 5 - Pipework Arrangement
31
Connection Types & Sizes
32
Cooler Connections
32
Refrigerant Relief Valve Piping
32
Ductwork Connection
32
FIG. 6 - Victaulic Groove
32
FIG. 7 - Flange Attachments
32
Electrical Connection
33
Power Wiring
33
Control Panel Wiring
33
Volts Free Contacts
34
System Inputs
34
FIG. 8 - Panel Layouts
35
FIG. 9 - Option Panel Section
36
FIG. 10 - Logic Section Layout
37
FIG. 11 - Logic Section Layout with Control Panel
38
Layout
38
FIG. 12 - Customer Connections
39
FIG. 13 - Customer Connections
40
Commissioning
41
Preparation
41
Preparation - Power off
41
First Time Start-Up
43
Operation
44
General Description
44
Start-Up
44
Normal Running and Cycling
44
Shutdown
44
Temperatures and Flows
45
Water Pressure Drop
45
FIG. 14 - Flow Rate and Pressure Drop Charts
45
Glycol Correction Factors
46
FIG. 15 - Glycol Correction Factors
46
Physical Data
47
Operating Limitations (SI)
47
Sound Power Data
47
Refrigerant
48
Electrical Data
50
Multiple Point Power Supply Connection - 2 Compressor Units
50
Optional Single-Point Power Supply Connection with Individual System Circuit Breakers
50
Optional Single-Point Power Supply Connection - 2 Compressor Units
52
Optional Single-Point Power Supply Connection to Factory Circuit Breaker
52
Compressor Data
54
Control Power Supply
54
Fan Data
54
Electrical Notes & Legend
55
Power Connection Options
56
Style "F" 2 Compressor Power Wiring Connections
56
Multiple Point Power Supply Connection - Standard Unit
56
Optional Single-Point Power Supply Connection with Individual System Circuit Breakers
56
FIG. 16 - Multiple Point Power Supply Connection
56
Standard Unit
56
FIG. 17 - Optional Single-Point Power Supply Connec
56
Optional Single-Point Power Supply Connection with Field Supplied Circuit Protection
57
Optional Single-Point Power Supply Connection to Factory Circuit Breaker
57
FIG. 18 - Optional Single-Point Power Supply Connec
57
Tion with Field Supply Circuit Protection
57
FIG. 19 - Optional Single-Point Power Supply Connection
57
To Factory Circuit Breaker
57
Wiring Diagrams
58
FIG. 20 - Elementary Diagram
58
Across-The-Line Start
58
FIG. 21 - Power Panel (Front Inside View)
62
Across-The-Line Start
62
FIG. 22 - Electronic Panel (Front Inside View)
63
Across-The-Line Start
63
FIG. 23 - Elementary Diagram: Wye-Delta Start
64
FIG. 24 - Power Panel (Front Inside View)
68
Wye-Delta Start
68
FIG. 25 - Electronic Panel (Front Inside View)
69
Wye-Delta Start
69
FIG. 26 - Connection Diagram
70
FIG. 27 - Detail "A
71
FIG. 28 - Connection Diagram System Wiring
72
FIG. 29 - Sensor Connection
72
FIG. 30 - Compressor (Systems 1 & 2)
72
FIG. 31 - Compressor Terminal Boxes
73
FIG. 32 - Detail "B
74
FIG. 33 - Detail "C
75
Dimensions
76
Ycas0425Eb - Ycas0575Eb
76
Ycas0605Eb
78
Operating Weights - Aluminum & Black Fin Coils
80
Isolator Selection - Aluminum & Black Fin Coils
80
Operating Weights - Copper Fin Coils & Perimeter Sound Enclosure
81
Installation Instructions for VMC Series Awr/Awmr and Cp Restrained Mountings
82
Isolator Details
83
FIG. 34 - Isolator Details
83
FIG. 35 - Isolator Details
84
Isolator Locations
85
FIG. 36 - Isolator Locations
85
Clearances
86
FIG. 37 - Clearances
86
Refrigerant Flow Diagram
87
FIG. 38 - Refrigerant Flow Diagram
87
Process and Instrumentation Diagram
88
FIG. 39 - Process & Instrumentation Diagram
88
Component Locations
89
FIG. 40 - Component Locations
89
Compressor Components
90
FIG. 41 - Compressor Components
90
FIG. 42 - Compressor Components
91
FIG. 43 - Compressor Components
92
FIG. 44 - Compressor Components
93
FIG. 45 - Compressor Components
94
FIG. 46 - Compressor Components
95
Start-Up
96
System Startup Checklist
96
SECTION 9 MICRO PANEL CONTENTS Chiller Control Panel Programming & Data Access
100
Display and Status Information Keys
100
Program & Setup Keys
100
1 Introduction & Physical Description
101
General
101
Keypad & Display
101
Microprocessor Board
101
Unit (Chiller) on / off Switch
101
Ancillary Circuit Boards
102
Circuit Breakers
103
Current Transformers (C.T.)
103
Motor Protector Modules
103
Transformers
103
FIG. 47 - Motor Protection Module
104
EMS / BAS Connections
105
Microprocessor Board Layout
107
FIG. 48 - Component Layout
107
Logic Section Layout
108
FIG. 49 - Logic Section Layout
108
Alarms
109
Anti-Coincidence Timer
109
Anti-Recycle Timer
109
Compressor Heater Control
109
Evaporator Heater Control
109
Evaporator Pump Control
109
Pumpdown (LLSV) Control
109
3- or 4-Compressor Chiller Configuration
110
Lead / Lag Compressor Selection
110
Run Status (Chiller)
110
2 Status Key & Fault Warnings
111
General
111
General Status Messages
111
Unit Warnings
112
Anticipation Control Status Messages
113
Unit Fault Status Messages
114
System Fault (Safety) Status Messages
115
FIG. 50 - Suction Pressure Cutout
116
Printout on Fault Shutdown
118
3 Display Keys & Option Switches
119
General
119
Chilled Liquid Temperatures Key
119
System # Data Keys
120
Ambient Temp Key
120
Motor Current Key
121
Operating Hours / Start Counter Key
121
Options Key & Dip Switch Settings
121
FIG. 51 - Enlarged Photograph of Dip Switches
122
Function Key
123
4 Print Keys
124
General
124
Oper Data Key
124
Operating Data - Local Display Messages
124
Operating Data - Remote Printout
125
History Key
127
Fault History Data - Local Display Messages
127
Fault History Data - Remote Printout
130
5 Entry Keys
131
General
131
Numerical Keypad
131
Enter Key
131
Cancel Key
131
Keys
131
6 Setpoints Keys
132
General
132
Chilled Liquid Temperature Control
132
Local Cooling Setpoints Key
134
Remote Cooling Setpoints Key
135
7 Clock Keys
136
General
136
Set Time Key
136
Set Schedule / Holiday Key
137
Manual Override Key
138
8 Program Key
139
General
139
Program Key - User Programmable Values
139
Programming "Default" Values
143
Condenser Fan Control
144
FIG. 52 - Condenser Fan Layout for DXST
144
2-Compressor Units
144
TABLE 2 - Condenser Fan Control and Fan Contactor Data for DXST Units with 4 Fans System
144
TABLE 3 - Condenser Fan Control and Fan Contactor Data for DXST Units with 5 Fans System
144
Maintenance
145
Chiller / Compressor Operating Log
145
Daily Maintenance
145
General Requirements
145
Scheduled Maintenance
145
FIG. 53 - Operating Log
146
Maintenance Requirements
147
General Periodic Maintenance Checks Standard Units
148
Spare Parts
149
Associated Drawings
149
Recommended Compressor Oils
149
Recommended Spares
149
Competent Person's Troubleshooting Guide
150
Troubleshooting
150
Sensor Calibration Charts
152
Limited Warranty
153
Temperature Conversion Chart
154
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