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YCAS0210
York YCAS0210 User Manual
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INST
ALLA
TION, OPERA
TION & MAINTENANCE
AIR-COOLED SCREW LIQUID CHILLERS
Supersedes: 201.18-NM1 (1298)
Form 201.18-NM1 (102)
YCAS AIR-COOLED SCREW LIQUID CHILLERS
YCAS0130 through YCAS0230
YCAS 2 SYSTEM EPROM
031-01798-001
(ST
ANDARD, BRINE & METRIC MODELS COMBINED)
28971AR
2
Table of Contents
Table of Contents
2
General Chiller Information & Safety
6
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
Section 2 Product Description
9
Introduction
9
General Description
9
Compressor
9
Evaporator
10
Condenser
10
Economizer
11
Suction Line Heat Exchanger
11
Oil Separator / System
11
Oil Cooling
12
Capacity Control
12
Power and Control Panel
12
Microprocessor Controls
12
Motor Current Protection
13
Motor Protection Module
13
Current Overload
14
Thermal Overload
14
Current Imbalance / Loss of Phase
14
Improper Phase Sequence
14
Motor Protector Dip Switch Settings
15
Motor Starting
19
Keypad Controls
19
Display
19
Entry
20
Setpoints
20
Clock
20
Print
20
Program
20
Accessories and Options
20
Multiple Point Power Connection (Standard)
20
Single-Point Power Connection with Individual Circuit Protection
20
Single-Point Power Connection with Combined Circuit Protection
20
Single-Point Power Connection Without Circuit Protection
20
DX Cooler Options
21
300 PSIG (21 Bar) Waterside Design Working
21
Pressure
21
1-1/2" (38 MM) Insulation
21
Flange Accessory
21
Remote DX Cooler
21
Flow Switch Accessory
21
Star-Delta Compressor Motor Starter
21
Unit Enclosures
21
Fans
21
Unit Nomenclature and Nameplate Engineering Data
22
Basic Part Number
22
Options Section of Part Number
22
Section 3 Handling and Storage
23
Delivery and Storage
23
Inspection
23
Moving the Chiller
23
Lifting Weights
23
Unit Rigging
24
Section 4 Installation
25
Location Requirements
25
Outdoor Installations
25
Indoor Installations
25
Location Clearances
25
Installation of Vibration Isolators
26
Installation
26
Shipping Braces
26
Pipework Connection
26
General Requirements
26
Water Treatment
27
Pipework Arrangement
28
Connection Types & Sizes
28
Cooler Connections
28
Option Flanges
28
Refrigerant Relief Valve Piping
28
Ductwork Connection
28
General Requirements
28
Electrical Connection
29
Power Wiring
29
Standard Units with Multi Point Power Supply Wiring
29
Units with Single-Point Power Supply Wiring
29
115VAC Control Supply Transformer
29
Remote Emergency Stop Device
30
Control Panel Wiring
30
Volts Free Contacts
30
Chilled Liquid Pump Starter
30
Run Contact
30
Alarm Contacts
30
System Inputs
30
Flow Switch
30
Remote Run/Stop
30
Remote Print
30
Power and Control Panel Layouts (Wye-Delta Typical)
31
Options Panel Layout (Typical)
32
Logic Section Layout
33
Logic Section Layout with Control Panel Layout
34
Customer Connections
35
Section 5 Commissioning
37
Preparation
37
Preparation - Power off
37
First Time Start-Up
39
Section 6 Operation
40
General Description
40
Start-Up
40
Normal Running and Cycling
40
Shutdown
40
Section 7 Technical Data
41
Flow Rate and Pressure Drop Charts
41
Glycol Correction Factors
41
Temperature and Flows
42
Physical Data (English & si Units)
43
Operating Limitations & Sound Power Data
44
Electrical Data
46
Multiple Point Power Supply Connection
46
Optional Single-Point Power Supply Connection and Individual System Circuit Breakers
48
Optional Single-Point Power Supply Connection with Field Supplied Circuit Protection
50
Optional Single-Point Power Supply Connection to Factory Circuit Breaker
51
Compressor Data
52
Fan Data
52
Electrical Notes
53
Wiring Diagram Across-The-Line Start
54
Elementary Diagram - Across-The-Line Start
56
Panel Component Locations
58
Wiring Diagram Wye-Delta Start
60
Elementary Diagram - Wye-Delta Start
62
Panel Component Locations
64
Connection Diagram
68
Compressor Terminal Box
69
Dimensions
72
YCAS0130 - 0180 (English)
72
Ycas0130 - 0180 (Si)
74
YCAS0200 - 0230 (English)
76
Ycas0200 - 0230 (Si)
78
Clearances
80
Weight Distribution and Isolator Mounting Positions
81
Isolator Installation Instructions for VMC Series AWR/AWMR Isolator and CP Restrained Mountings
89
Refrigerant Flow Diagram
90
Process and Instrumentation Diagram
91
Component Locations
92
Compressor Components
93
System Startup Checklist
99
Unit Checks
99
Panel Checks
100
Initial Start-Up
101
Checking Subcooling and Superheat
101
Checking Economizer Superheat
102
Leak Checking
102
Chiller Control Panel Programming and Data Access Keys
103
Display and Status Information Keys
103
ON / off Rocker Switch
103
Program & Setup Keys
103
Section 8 Micro Panel Contents
104
Introduction & Physical Description
104
1.1 General
104
1.2 Keypad & Display
104
1.3 Unit (Chiller) on / off Switch
105
Microprocessor Board
105
1.5 Ancillary Circuit Boards
105
1.6 Circuit Breakers
106
Current Transformers (C.T.)
106
Transformers
106
Motor Protection Modules
107
Ems/Bas Controls
109
Microprocessor Board Layout
111
Logic Section Layout
112
Anti-Recycle Timer
113
Anti-Coincidence Timer
113
Evaporator Pump Control
113
Compressor Heater Control
113
Evaporator Heater Control
113
Pumpdown (LLSV) Control
113
Alarms
113
Run Status (Chiller)
114
Lead / Lag Compressor Selection
114
Status Key: General Status Messages and Fault Warnings
115
General
115
General Status Messages
115
Unit Warnings
116
Anticipation Control Status Messages
117
Unit Fault Status Messages
118
System Fault (Safety) Status Messages
119
Printout on Fault Shutdown
122
Display Keys & Option Switches
123
General
123
Chilled Liquid Temps Key
123
System # Data Keys
124
Ambient Temp Key
124
Motor Current Key
125
Operating HRS / Start Counter Key
125
Options Key & Dip Switch Settings
125
Function Key
127
Print Keys
128
General
128
Oper Data Key
128
Operating Data - Local Display Messages
128
Operating Data - Remote Printout
129
History Key
131
Fault History Data - Local Display Messages
131
Fault History Data - Remote Printout
134
Entry Keys
135
General
135
Numerical Keypad
135
Enter Key
135
Cancel Key
135
Áâ KEYS
135
Setpoints Keys & Chilled Liquid Control
136
General
136
Chilled Liquid Temperature Control
136
Local Cooling Setpoints Key
139
Remote Cooling Setpoints Key
139
Clock Keys
140
General
140
Set Time Key
140
Set Schedule / Holiday Key
141
Manual Override Key
142
Program Key
143
General
143
Program Key - User Programmable Values
143
Programming "Default" Values
147
Condenser Fan Control
148
Section 9 Maintenance
155
General Requirements
155
Daily Maintenance
155
Scheduled Maintenance
155
Chiller / Compressor Operating Log
155
Compressor Unit Operation
156
Maintenance Requirements
157
General Periodic Maintenance Checks Standard Units
158
Section 10 Spare Parts
159
Recommended Spares
159
Recommended Compressor Oils
159
Associated Drawings
159
Section 11 Troubleshooting
160
Competent Persons Troubleshooting Guide
160
Sensor Calibration Charts
162
Limited Warranty Applied Systems
163
Temperature Conversion Chart
164
YORK Service Offices
165
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York YCAS0210 Specifications
General
Model
YCAS0210
Refrigerant
R-134a
Phase
3
Frequency
60 Hz
Cooling Capacity
210 Tons
Voltage
460V
Height
96 in (2438 mm)
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