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York YCAL0055EC Air-Cooled Liquid Chiller Manuals
Manuals and User Guides for York YCAL0055EC Air-Cooled Liquid Chiller. We have
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York YCAL0055EC Air-Cooled Liquid Chiller manual available for free PDF download: Installation Operation & Maintenance
York YCAL0055EC Installation Operation & Maintenance (174 pages)
AIR-COOLED SCROLL CHILLERS STYLE D WITH IPU II and I/O BOARDS (50 Hz) 29 TON TO 65 TON
Brand:
York
| Category:
Chiller
| Size: 4.92 MB
Table of Contents
General Safety Guidelines
2
Changeability of this Document
3
Revision Notes
3
Table of Contents
5
List of Figures
10
List of Tables
11
Section 1 - General Chiller Information and Safety
13
Introduction
13
Warranty
13
Safety
13
Standards for Safety
13
Responsibility for Safety
14
About this Manual
14
Misuse of Equipment
14
Suitability for Application
14
Structural Support
14
Mechanical Strength
14
General Access
14
Pressure Systems
14
Electrical
15
Rotating Parts
15
Sharp Edges
15
Refrigerants and Oils
15
High Temperature and Pressure Cleaning
15
Emergency Shutdown
15
Section 2 - Product Description
17
Introduction
17
General System Description
17
Compressors
17
Cooler
17
Condenser
18
Millennium Control Center
18
Unit
18
Unit On/Off
19
Power Panel
19
Accessories and Options
20
Power Options
20
Control Options
20
Compressor, Piping, Evaporator Options
21
Condenser and Cabinet Options
22
Sound Reduction Options
22
Unit Components
23
Control / Power Panel Components
24
Product Identification Number (Pin)
25
Refrigerant Flow Diagram
30
Fig. 1 - Refrigerant Flow Diagram
30
Section 3 - Handling and Storage
31
Delivery and Storage
31
Inspection
31
Moving the Chiller
31
Lifting Weights
31
Unit Rigging
32
Section 4 - Installation
33
Installation Checklist
33
Handling
33
Inspection
33
Location and Clearances
33
Foundation
34
Ground Level Locations
34
Rooftop Locations
34
Noise Sensitive Locations
34
Spring Isolators (Optional)
34
Compressor Mounting
34
Remote Cooler Option
34
Chilled Liquid Piping
34
Duct Work Connection
35
General Requirements
35
Wiring
35
Evaporator Pump Start Contacts
36
System Run Contacts
36
Alarm Status Contacts
36
Remote Start/Stop Contacts
36
PWM Input
36
Load Limit Input
36
Flow Switch Input
36
Compressor Heaters
36
Single-Point Supply Connection - Terminal Block, Non-Fused Disconnect Switch or Circuit Breaker (0041 - 0071)
37
Fig. 2 - Single-Point Supply Connection - Terminal Block, Non-Fused
37
Disconnect Switch or Circuit Breaker (0041 - 0071)
37
Control Wiring
38
Fig. 3 - Control Wiring
38
Section 5 - Commissioning
39
Preparation - Power off
39
Inspection
39
Refrigerant Charge
39
Service and Oil Line Valves
39
Compressor Oil
39
Fans
39
Isolation / Protection
39
Control Panel
39
Power Connections
39
Supply Voltage
40
Preparation - Power on
40
Switch Settings
40
Compressor Heaters
40
Water System
40
Flow Switch
40
Temperature Sensor(S)
40
Equipment Pre-Startup and Startup Checklist
41
Pre-Startup
41
Startup
41
Table 1 - Setpoints Entry List
42
Checking Superheat and Subcooling
43
Leak Checking
43
Unit Operating Sequence
44
Section 6 - Technical Data
45
Operational Limitations (English)
45
Voltage Limitations
45
Table 2 - Temperatures and Flows
45
Table 3 - Voltage Limitations
45
Table 4 - Ethylene Glycol Correction Factors
46
Operational Limitations (Si)
47
Voltage Limitations
47
Table 5 - Temperatures and Flows (Si)
47
Table 6 - Voltage Limitations
47
Table 7 - Ethylene Glycol Correction Factors
48
Physical Data (English)
50
Table 8 - Physical Data (English)
50
Sound Data (English)
52
Table 9 - Sound Data (English)
52
Electrical Data
54
Table 10 - Electrical Data (English)
54
Table 11 - Micro Panel Power Supply
56
Table 12 - Voltage Range
56
Electrical Notes and Legend
57
Wiring Diagrams
58
Fig. 4 - Control Circuit
58
Fig. 5 - Power Circuit
60
Fig. 6 - Wiring Details
61
Fig. 7 - Connection Diagram
62
Fig. 8 - Connection Diagram Microboard (Partial)
63
Dimensions
64
Technical Data - Clearances
92
Fig. 9 - Unit Clearances
92
Isolators
93
General
93
Installation of 1" Deflection Mounts
95
Section 7 - Unit Controls
99
York Millennium Control Center
99
Introduction
99
Microprocessor Board
99
Unit Switch
100
Display
100
Keypad
100
Battery Back-Up
100
Transformer
100
Single System Select and Programming # of Compressors
100
Status Key
101
Unit Status
101
General Status Messages
101
Fault Safety Status Messages
103
System Safeties
103
Unit Safeties
105
Unit Warning
105
Status Key Messages
106
Table 13 - Status Key Messages Quick Reference List
106
Display/Print Keys
107
Oper Data Key
107
Table 14 - Operation Data
110
Print Key
111
Operating Data Printout
111
History Printout
112
History Displays
112
Software Version
114
Entry Keys
115
Up and down Arrow Keys
115
Enter/Adv Key
115
Setpoints Keys
116
Cooling Setpoints
116
Leaving Chilled Liquid Control
116
Return Chilled Liquid Control
117
Remote Setpoint Control
117
Schedule/Advance Day Key
117
Table 15 - Cooling Setpoints, Programmable Limits and Defaults
118
Program Key
119
Table 16 - Program Key Limits and Defaults
122
Table 17 - Setpoints Quick Reference List
123
Unit Keys
124
Options Key
124
Clock
128
Table 18 - Unit Keys Programming Quick Reference List
129
Section 8 - Unit Operation
131
Capacity Control
131
Suction Pressure Limit Controls
131
Discharge Pressure Limit Controls
131
Leaving Chilled Liquid Control
131
Leaving Chilled Liquid System Compressor Sequencing
132
Leaving Chilled Liquid Control Override to Reduce Cycling
132
Fig. 10 - Leaving Water Temperature Control Example
132
Fig. 11 - Setpoint Adjust
132
Return Chilled Liquid Control
133
Table 19 - Compressor Staging for Return Water Control
133
Return Chillled Liquid System Lead/Lag and Compressor Sequencing
134
Anti-Recycle Timer
134
Anti-Coincidence Timer
134
Evaporator Pump Control
134
Table 20 - Return Chilled Liquid Control for 4 Compressors (6 Steps)
134
Evaporator Heater Control
135
Pumpdown Control
135
Condenser Fan Control (Ycal0041 - Ycal0071 Chillers)
135
Table 21 - Return Chilled Liquid Control for 4 Compressors (6 Steps)
135
Standard Condenser Fan Control - Ycal0041 - Ycal0071
136
Fig. 12 - Ycal0041 - Ycal0071 Fan Location (Typical)
136
Ambient Temperature and Discharge Pressure
136
Pressure Only
136
Table 22 - Ycal0041 - Ycal0071 Condenser Fan Control Using Outdoor
136
Table 23 - Ycal0041 - Ycal0071 Condenser Fan Control Using Discharge
136
Low Ambient Fan Control Option
137
General
137
Fig. 13 - Typical Inverter Location
137
Fig. 14 - Inverter Enclosure
137
Configuration (Jumpers and Potentiometers)
138
Fig. 15 - Potentiometer Settings
138
Wiring
139
Fig. 16 - Inverter Power Wiring Schematic
139
Fig. 17 - Inverter Wiring
139
Programming
140
Load Limiting
140
Table 24 - Inverter Option Condenser Fan Control Operation
140
Compressor Run Status
141
Alarm Status
141
Ems-Pwm Remote Temperature Reset
141
Table 25 - Compressor Operation - Load Limiting
141
Bas/Ems Temperature Reset Option
142
Fig. 18 - Field and Factory Electrical Connections Optional Remote
143
Temperature Reset Board
143
Section 9 - Service and Troubleshooting
145
Clearing History Buffers
145
Service Mode
145
Service Mode - Outputs
145
Service Mode - Chiller Configuration
145
Service Mode - Inputs
146
Control Inputs/Outputs
147
Table 26 - Microboard Digital Inputs
147
Table 27 - Microboard Digital Outputs
147
Table 28 - Microboard Analog Inputs
147
Table 29 - Microboard Analog Outputs
147
Fig. 19 - Ipu II & I/O Layout
148
Checking Inputs and Outputs
149
Digital Inputs
149
Analog Inputs - Temperature
149
Outside Air Sensor
149
Liquid & Refrigerant Sensor Test Points
150
Correlation
150
Temperature Sensor, and Suction Temperature Sensor: Temperature/Voltage Correlation
150
Analog Inputs - Pressure
151
Digital Outputs
152
Fig. 20 - Microboard Relay Contact Architecture
152
Optional Printer Installation
153
Parts
153
Assembly and Wiring
153
Obtaining a Printout
153
Fig. 21 - Printer to Microboard Electrical Connections
153
Table 32 - Troubleshooting
154
Section 10 - Maintenance
157
Important
157
Compressors
157
Oil Level Check
157
Oil Analysis
157
Condenser Fan Motors
157
Condenser Coils
157
Operating Parameters
157
On-Board Battery Back-Up
157
Plate and Frame Heat Exchanger (Evaporator) Heater
157
Overall Unit Inspection
158
Bacnet, Modbus and Yorktalk 2 Communications
158
Table 33 - Minimum, Maximum and Default Values
159
Fig. 22 - Micro Panel Connections
159
Table 34 - Values Required for Bas Communication
160
Table 35 - Real Time Error Numbers
160
Bacnet and Modbus Communications
161
Communications Data Map Notes
161
Table 36 - Bacnet and Modbus Communications Data Map
162
Yorktalk 2 Communications
166
Table 37 - Yorktalk 2 Communications Data Map
167
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