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York YHAU-CW Manuals
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York YHAU-CW manual available for free PDF download: Manual
York YHAU-CW Manual (168 pages)
DOUBLE EFFECT STEAM-FIRED ABSORPTION CHILLER
Brand:
York
| Category:
Chiller
| Size: 8.88 MB
Table of Contents
Table of Contents
5
Section 1 - General Chiller Information and Safety
11
Introduction
11
About this Manual
11
Warranty
11
Quality Assurance
12
Emergency Shutdown
12
High Temperature and Pressure Cleaning
12
Safety Labels
13
Material Safety Data Sheet
13
Section 2 - Product Description
15
Chiller Components
15
Control Panel
15
FIGURE 1 - Double Effect Steam-Fired Absorption Chiller Cycle Diagram
15
Figure 2 - Yhau-Cw Components
16
How It Works
16
Absorber
17
Evaporator
17
Two-Step Evaporator-Absorber
17
High Temperature Generator (HTG)
18
Low Temperature Generator (LTG)
18
Parallel Flow
18
Plate Type Heat Exchangers
18
Condenser
19
Crystallization
19
Why Does Crystallization Occur
19
FIGURE 3 - Warning
21
Inspection
22
Installation Guidelines
22
FIGURE 4 - Hoisting Procedures
23
Hoisting the Machine
23
FIGURE 5 - Moving the Machine on Rollers
24
Moving the Machine on Rollers
24
FIGURE 6 - Moving the Machine on Tir Rollers
25
FIGURE 7 - Jack-Up Procedure
25
Jack up Procedure
25
FIGURE 8 - Jack-Up Procedure
26
Electrical
27
Indoor and Outdoor Installation
27
Precautions for Use
27
Structural Support and Installation
27
Electrical Shock Cautions
28
Leak Testing
28
FIGURE 9 - Vibration and Isolation Details
29
Vibration and Isolation Details
29
Rupture Disk and Relief Piping
30
Rupture Disk Discharge Piping Material
30
Rupture Disk Discharge Piping Construction
30
Rupture Disk Discharge Piping Sizing
30
FIGURE 10 - Location of Rupture Disk
31
TABLE 1 - Split Shipment
32
TABLE 2 - Split Shipment Component Dimensions
33
FIGURE 11 - YHAU-CW150-300EX(S), 360-800EX(Sw), 900-1100EXW(S), 1200-1600EXW3(S), 1000-2000EXW4(S) NOZZLE Locations
34
TABLE 3 - Nozzle Arrangements 150-300EX(S), 360-800EX(S), 900-1100EXW(S), 1200-1600EXW3(S), 1000-2000EXW4(S)
34
FIGURE 12 - Hot and Cold Insulation
35
Hot Insulation or Cold Insulation Procedure
35
TABLE 4 - Insulating Material and Thickness
35
TABLE 5 - Points Requiring Hot or Cold Insulation
35
FIGURE 13 - Interior of Control Panel
36
FIGURE 14 - Exterior of Control Panel
36
Section 3 - Handling, Storage, Installation and Reassembly
21
Section 4 - Technical Data
37
TABLE 6 - Typical Operational Range
37
TABLE 7 - High Efficiency Weights and Dimensions
38
TABLE 8 - High Efficiency Physical Data
39
TABLE 9 - Standard Weights and Dimensions
40
TABLE 10 - Standard Physical Data
41
FIGURE 15 - Load Points for Double-Effect Steam Units
42
TABLE 11 - Load Points for Double-Effect EX & EXW Units - High Efficiency
44
TABLE 12 - Load Points for Double-Effect EX & EXW Units - Standard Efficiency
45
TABLE 13 - Electrical Data
46
FIGURE 16 - Power Wiring
62
FIGURE 17 - Power Wiring
64
FIGURE 18 - PLC Input Wiring
66
FIGURE 19 - PLC Input Wiring
68
FIGURE 20 - PLC Output Wiring
70
FIGURE 21 - Display/Analog Wiring
72
FIGURE 22 - Display/Analog Wiring
74
FIGURE 23 - PLC Analog Output Wiring
76
FIGURE 24 - PLC and Touch Screen Wiring
77
FIGURE 25 - Steam Control Wiring
78
FIGURE 26 - External Connection Terminal Details
80
FIGURE 27 - Remote Transmission Signal
81
FIGURE 28 - Signal Terminal Transition Wiring
82
Additional Information
83
TABLE 14 - Contact Specifications
83
Upper Communication Specification
84
Upper Communication System Configuration
84
FIGURE 29 - Upper Communication System Configuration
84
Scope of Delivery
85
Connection Port for Ethernet Communication
85
TABLE 15 - Scope of Delivery
85
TABLE 16 - Ethernet Interface Specification
85
Communication Specification
86
Communication Data
86
TABLE 17 - Communication Specifications
86
TABLE 18 - Communication Data/Read Command
86
User-Created
87
FIGURE 30 - Connection Detail for D-Sub 9Pin
87
TABLE 19 - Communication Data/Write Command
87
TABLE 20 - Scope of Delivery of Upper Communication System
87
TABLE 21 - Cable Diagram (RS422/RS485)
88
FIGURE 31 - 2 Wire 1:1 Connection with User-Created Cable
89
FIGURE 32 - 2 Wire N:1 Connection with User-Created Cable
89
Wire Type Cable Diagrams
90
FIGURE 33 - 4 Wire 1:1 Connection with User-Created Cable
90
FIGURE 34 - 4 Wire N:1 Connection with User-Created Cable
90
TABLE 22 - Communication Specifications
91
FIGURE 35 - Sample Sound Testing for YHAU-CW Chiller
92
Noise Emisson
92
Section 5 - Commissioning
93
General Guidelines for Use
93
Before Operation
93
TABLE 23 - Rotary Pump Rotation
93
Precautions for the Use of Steam
94
Chilled Water Outlet Temperature Controller
95
Liquid Level Gauges
95
Start the Chiller
95
Stop the Chiller
95
TABLE 24 - Liquid Level Gauges
95
FIGURE 36 - Cooling Start Diagram
96
FIGURE 37 - Cooling Stop Diagram
96
FIGURE 38 - Steam Sequential Operation Flowchart
97
FIGURE 39 - Stopping Absorption Chiller Steam Flowchart
97
Section 6 - Operation
105
YHAU-CW Control Center
105
Common Items
105
Change Numeric Values
106
Operating Status
107
FIGURE 40 - Main Screen
107
FIGURE 41 - Data Screen
109
FIGURE 42 - Solution Analysis / Control Panel Parts Replacement Screen
111
FIGURE 43 - Solution Pump Overhaul / Refrigerant Pump Overhaul Screen
112
FIGURE 44 - Trend Screen
113
FIGURE 45 - Hourly Operation History Screen by Hours
114
FIGURE 46 - Operation History Screen by Minutes
116
FIGURE 47 - Failure History Screen
118
FIGURE 48 - Alarm History Screen
120
Failure
122
FIGURE 49 - Failure and Alarm Screen
122
TABLE 25 - Failure List
123
Alarm
124
TABLE 26 - Alarm List
125
Control Parameter
127
FIGURE 50 - Setting Screen
127
Date and Time
128
Operation Switch
129
Select Unit
129
SI Unit: It Is to Select the Metric Unit Display
129
US Unit: It Is to Select the Imperial Unit Display
129
Select Language
129
Section 7 - Maintenance
131
Valve Inspection
131
Solenoid Valves
131
Pump Shut off Valves
131
Air Purging Valves and Draining Valves
131
Purging Valves
131
TABLE 27 - Solenoid Valves
131
Start the Chiller after It Has Been Stopped for a Long Period
132
Checks before Operation Starts
132
Checks after Operation Starts
132
Purge Procedure
132
Capacity Check Method of Vacuum Pump
132
Manual Method to Purge Non-Condensable Gas Directly from Absorber with Vacuum Pump
133
FIGURE 51 - Location of Manual Valve in Purging System
133
Manual Method to Purge Non-Condensable Gas from Purging Tank with Vacuum Pump
134
Automatic Method to Purge Non-Condensable Gas from Purging Tank
134
FIGURE 52 - YHAU-CW Steam Fired Chiller Flow Diagram
135
FIGURE 53 - Process and Instrumentation Diagram
136
Refrigerant Refining Method
137
Manual Refrigerant Blow down and Diluting Method
137
Decrystallization Method
138
Indications of Crystallization
138
Decrystallization
138
Precautions for De-Crystallization
139
Maintenance Items
139
TABLE 28 - Maintenance and Inspection
139
Purge Manual Start and Stop
142
Refrigerant Pump Manual Stop
142
Lifespan for Various Parts
142
TABLE 29 - Lifespan of Common Parts
143
Water Quality Control
144
Chemical Water Treatment
144
Replacement of Water
144
Treatment for Long Stoppage of the Absorption Chiller
145
Chemical Treatment
145
Flow Speed in Tubes
145
TABLE 30 - Tendency of Generation of Scales and Corrosion by Quality of Cooling Water
146
FIGURE 54 - Chilled Water and Cooling System
147
FIGURE 55 - Steam and Drain System for Steam Control Valve
147
FIGURE 56 - Steam and Drain System for Steam Drain Control Valve
148
TABLE 31 - Steam Drain Quality Control
148
TABLE 32 - Chilled and Cooling Water Quality Control (Maximum Concentrations)
149
Storage Method of the Chiller
150
Wet Storage Method
150
Dry Storage Method
151
Precautions against External Damage
151
TABLE 33 - Wet Storage Method
152
TABLE 34 - Dry Storage Method
152
FIGURE 57 - Duhring Diagram / PTX Chart (°F)
153
FIGURE 58 - Duhring Diagram / PTX Chart (°C)
154
FIGURE 59 - Specific Gravity - Concentration (°F)
155
FIGURE 60 - Specific Gravity - Concentration (°C)
156
Section 8 - Troubleshooting
157
TABLE 35 - Troubleshooting the High Temperature Generator
158
TABLE 36 - Chilled Water Overcooling or Refrigerant Overcooled
158
TABLE 37 - Chilled Water Suspension
159
TABLE 38 - Pumps Overloaded or Overheated
159
TABLE 39 - Chilled Water Time out or Cooling Water Time out
159
TABLE 40 - Pump Interlocks
160
TABLE 41 - Low Cooling Water Inlet Temperature
160
TABLE 42 - Abnormal Control Sensor
160
TABLE 43 - CPU Abnormal
160
TABLE 44 - Troubleshooting Performance Issues
161
Troubleshooting Performance Issues
161
TABLE 45 - Vacuum Pump Troubleshooting
162
Vacuum Pump
162
Abnormal Solution and Refrigerant Levels
163
TABLE 46 - Abnormal Solution Refrigerant Levels
163
Insufficient Vacuum Levels
164
TABLE 47 - Insufficient Vacuum Levels
164
FIGURE 61 - Troubleshooting Sequence Flow Chart
165
Actions to Take against Power Failure
166
FIGURE 62 - Actions to Take against Power Failure
166
Section 9 - Decommissioning, Dismantling, and Disposal
167
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