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York YHAU-CGH-120EXS Chiller-Heater Manuals
Manuals and User Guides for York YHAU-CGH-120EXS Chiller-Heater. We have
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York YHAU-CGH-120EXS Chiller-Heater manual available for free PDF download: Installation, Operation & Maintenance Instructions Manual
York YHAU-CGH-120EXS Installation, Operation & Maintenance Instructions Manual (176 pages)
DOUBLE EFFECT DIRECT FIRED ABSORPTION CHILLER-HEATER
Brand:
York
| Category:
Chiller
| Size: 10.37 MB
Table of Contents
Table of Contents
5
Section 1 - General Chiller-Heater Information and Safety
11
Introduction
11
About this Manual
11
Warranty
11
Quality Assurance
12
High Temperature and Pressure Cleaning
12
Safety Labels
13
Section 2 - Product Description
15
Chiller-Heater Components
15
Control Panel
15
FIGURE 1 - YHAU-CGN/H-120~300EX(H/S) and 360EX~1600EXW3(H/S)
15
FIGURE 2 - Two Step Direct Fired Absorption Chiller-Heater Cycle Diagram (Cooling Mode)
16
How It Works (Direct Fired Units)
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
Inspection Window
22
Installation Guidelines
22
Structural Support and Installation
22
Indoor and Outdoor Installation
23
Precautions for Use
23
Electrical Shock Cautions
24
Leak Testing
24
Use of Gas
25
Vibration and Isolation Details
25
FIGURE 4 - Vibration and Isolation Details
26
FIGURE 5 - YHAU-CGN/H-120-300EX(H/S) and 360EX(H/S)-1600EXW3(H/S) Nozzle Locations
27
TABLE 1 - Nozzle Arrangements 120-300EX(H/S) and 360EX(H/S)-1600EXW3(H/S)
27
FIGURE 6 - Fuel Gas Piping System
28
FIGURE 7 - Hot/Cold Insulation
29
Hot Insulation/Cold Insulation Procedure
29
TABLE 2 - Insulating Material and Thickness
29
TABLE 3 - Points Requiring Hot/Cold Insulation
29
FIGURE 8 - Interior of Control Panel (MM)
30
FIGURE 9 - Exterior of Control Panel (MM)
30
Section 3 - Handling, Storage, Installation and Reassembly
21
TABLE 4 - Typical Operational Range
31
Section 4 - Technical Data
31
TABLE 5 - Standard Efficiency
32
TABLE 6 - High Efficiency
32
TABLE 7 - Physical Data
33
TABLE 8 - Physical Data
33
TABLE 9 - Electrical Data
34
TABLE 10 - Electrical Data
35
TABLE 11 - Load Points for High Efficiency - CGN
38
TABLE 12 - Load Points for High Efficiency - CGH
39
TABLE 13 - Load Points for Standard Efficiency - CGN
40
TABLE 14 - Load Points for Standard Efficiency - CGH
41
TABLE 15 - Split Shipment - High Efficiency - CGN
42
TABLE 16 - Split Shipment - High Efficiency - CGH
43
TABLE 17 - Split Shipment - Standard Efficiency - CGN
44
TABLE 18 - Split Shipment - Standard Efficiency - CGH
45
FIGURE 10 - Power Wiring
46
FIGURE 11 - Power Supply Wiring
48
FIGURE 12 - PLC Input Wiring
52
FIGURE 13 - PLC Output Wiring
56
FIGURE 14 - PLC Analog Input Wiring
60
FIGURE 15 - Display/Analog Input Wiring
62
FIGURE 16 - External Connection Terminal Details
64
FIGURE 17 - 3 Phase 4 Wire Power Supply Wiring
65
TABLE 19 - Contact Specifications
65
FIGURE 18 - Remote Stop & Start Signal
66
FIGURE 19 - Signal Terminal Transition Wiring
66
Upper Communication Specification
68
Upper Communication System Configuration
68
FIGURE 20 - Upper Communication System Configuration
68
Scope of Delivery
69
Connection Port for Ethernet Communication
69
TABLE 20 - Scope of Delivery
69
TABLE 21 - Ethernet Interface Specification
69
Communication Specification
70
Communication Data
70
TABLE 22 - Communication Specifications
70
TABLE 23 - Read Command
70
TABLE 24 - Write Command
71
User-Created
72
FIGURE 21 - Connection Detail for D-Sub 9Pin
72
TABLE 25 - Scope of Delivery of Upper Communication System
72
FIGURE 22 - 2-Wire 1:1 Connection with User-Created Cable
73
TABLE 26 - Cable Diagram (RS-422/RS485)
73
4-Wire Type Cable Diagrams
74
FIGURE 23 - 2-Wire N:1 Connection with User-Created Cable
74
FIGURE 24 - 4-Wire 1:1 Connection with User-Created Cable
74
FIGURE 25 - 4-Wire N:1 Connection with User-Created Cable
75
TABLE 27 - Communication Specifications
75
FIGURE 26 - Sample Sound Testing
76
Section 5 - Commissioning
77
General Guidelines for Use
77
Before Operation
77
TABLE 28 - Rotary Pump Rotation
77
Precautions for the Use of Water
78
Chilled/Hot Water Outlet Temperature Controller
78
Liquid Level Gauges
78
TABLE 29 - Liquid Level Gauges (Sight Glass)
78
Start the Chiller-Heater
79
Stop the Chiller-Heater
79
Interlocking Procedure
79
FIGURE 27 - Cooling Start Diagram
80
FIGURE 28 - Cooling Stop Diagram
80
FIGURE 29 - Direct Fire Sequential Operation Flowchart
81
FIGURE 30 - Stopping Absorption Chiller-Heater Direct Fire Flowchart
81
Section 6 - Operation
91
YHAU-CGN/H Control Center
91
Common Items
91
Change Numeric Values
92
Operating Status
93
FIGURE 31 - Main Screen
93
FIGURE 32 - Data Screen
95
FIGURE 33 - Solution Analysis / Control Panel Parts Replacement Screen
97
FIGURE 34 - Solution Pump Overhaul / Refrigerant Pump Overhaul Screen
98
FIGURE 35 - Burner Parts Replacement/ Burner Combustion Check Screen
99
FIGURE 36 - Trend Screen
100
FIGURE 37 - Hourly Operation History
101
FIGURE 38 - Minutely Operation History
103
FIGURE 39 - Failure History Screen
105
FIGURE 40 - Alarm History Screen
107
Failure
109
FIGURE 41 - Failure and Alarm Screen
109
TABLE 30 - Failure List
110
TABLE 31 - Alarm List
112
Control Parameter
114
FIGURE 42 - Setting Screen
114
Valve Operation
115
Date and Time
116
Operation Switch
116
Select Language
116
Single Loop Controller
117
FIGURE 43 - Single Loop Controller
117
FIGURE 44 - Run Mode
118
FIGURE 45 - Ready Mode
118
Ready Mode
118
Run Mode
118
Alarm Mode
119
FIGURE 46 - Alarm Mode
119
Alarm Codes
120
TABLE 32 - Alarm Codes
120
Air Damper Control
121
FIGURE 47 - Air Damper Control
121
FIGURE 48 - Hot Water Control Valve
122
Hot Water Control Valve
122
AUTO/MANUAL Mode (RHW Only)
123
FIGURE 49 - Changing Information in Manual Mode
123
Operation Mode Changeover
124
Changeover to Cooling Mode
124
Changeover to Heating Mode
124
Use Simultaneous Residential Hot Water Supply Mode (Option)
124
Changeover to Residential Hot Water Sole Supply Mode (Option)
125
FIGURE 50 - Changeover Valve Locations
126
TABLE 33 - Changeover Valve Operation
127
Section 7 - Maintenance
129
Exhaust Duct Inspection
129
Valve Inspection
129
Solenoid Valves
129
Pump Shut off Valves
129
Air Purge Valves and Drain Valves
129
Purge Valves
129
TABLE 34 - Solenoid Valves
129
Start the Chiller-Heater after It Has Been Stopped for a Long Period
130
Checks before Operation Starts
130
Checks after Operation Starts
130
Purge Procedure
130
Capacity Check Method of Vacuum Pump
130
FIGURE 51 - Location of Manual Valve in Purging System 120-300EX(H/S)
131
FIGURE 52 - Location of Manual Valve in Purging System 360-500EX(H/S)
132
FIGURE 53 - Location of Manual Valve in Purging System 560-1600EXW3(H/S)
133
Manual Method to Purge Non-Condensable Gas Directly from Absorber
134
Manual Method to Purge Non-Condensable Gas from the Purge Tank
134
Automatic Method to Purge Non-Condensable Gas from the Purge Tank
135
Figure 54 - Yhau- Cgn/Hdirect Fired Chiller-Heater Flow Diagram - Heating Only (Evaporator)
136
FIGURE 55 - YHAU- CGN/H Direct Fired Chiller-Heater Flow Diagram - Residential Hot Water (Auxiliary Heat Exchanger)
137
FIGURE 56 - YHAU- CGN/H Direct Fired Chiller-Heater Flow Diagram - Simultaneous Cooling and Residential
138
FIGURE 57 - YHAU- CGN/H Direct Fired Chiller-Heater Flow Diagram - Simultaneous Heating and Residential
139
FIGURE 58 - Process and Instrumentation Diagram - Cooling Only
140
FIGURE 59 - YHAU- CGN/H Direct Fired Chiller-Heater Flow Diagram - Cooling Only
141
TABLE 35 - Purge Valve Operation
141
Refrigerant Refining Method
142
Manual Refrigerant Blow down and Diluting Method
142
Decrystallization Method
143
Indications of Crystallization
143
Decrystallization
143
Precautions for Decrystallization
144
Maintenance Items
144
TABLE 36 - Maintenance and Inspection
145
Purge Manual Start and Stop
148
Refrigerant Pump Manual Stop
148
Lifespan for Various Parts
148
TABLE 37 - Lifespan of Common Parts
149
Water Quality Control
150
Chemical Water Treatment
151
Replacement of Water
151
Treatment for Long Stoppage of the Absorption Chiller-Heater
151
Chemical Treatment
151
Flow Speed in Tubes
151
TABLE 38 - Tendency of Generation of Scales and Corrosion by Quality of Cooling Water
152
TABLE 39 - Chilled/Hot and Cooling Water Quality Control (Maximum Concentrations)
153
Storage Method of the Chiller-Heater
154
Wet Storage Method
154
FIGURE 60 - Chilled/Hot Water and Cooling Water System
154
Dry Storage Method
155
Precautions against External Damage
155
TABLE 40 - Wet Storage Method
156
TABLE 41 - Dry Storage Method
156
Storage Method of the Cooling Water During Heating Operation Period
157
Wet Storage
157
Work Procedure
158
Dry Storage
158
FIGURE 61 - Wet Storage During Heating Operation Period
158
FIGURE 62 - Dry Storage During Heating Operation Period
159
Work Procedure
159
FIGURE 63 - Duhring Diagram / PTX Chart (°F)
160
FIGURE 64 - Duhring Diagram / PTX Chart (°C)
161
FIGURE 65 - Specific Gravity - Concentration (°F)
162
FIGURE 66 - Specific Gravity - Concentration (°C)
163
Section 8 - Troubleshooting
165
TABLE 42 - Troubleshooting the High Temperature Generator
166
TABLE 43 - Refrigerant Overcooling Relay
166
TABLE 44 - Chilled or Hot Water Time out or Cooling Water Time out
167
TABLE 45 - Pump Interlocks
167
TABLE 46 - Low Cooling Water Inlet Temperature
167
TABLE 47 - Abnormal Control Sensor
167
TABLE 48 - CPU Abnormal
167
TABLE 49 - Chilled or Hot Water Suspension
168
TABLE 50 - Pump(S) Overloaded or Overheated
168
TABLE 51 - Troubleshooting Performance Issues
169
Troubleshooting Performance Issues
169
TABLE 52 - Vacuum Pump Troubleshooting
170
Vacuum Pump
170
Abnormal Solution and Refrigerant Levels
171
TABLE 53 - Abnormal Solution and Refrigerant Levels
171
TABLE 54 - Insufficient Vacuum Levels
172
FIGURE 67 - Troubleshooting Sequence Flow Chart
173
Actions to Take against Power Failure
174
FIGURE 68 - Actions to Take against Power Failure
174
Section 9 - Decommissioning, Dismantling, and Disposal
175
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