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8E051072
Hitachi 8E051072 Manuals
Manuals and User Guides for Hitachi 8E051072. We have
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Hitachi 8E051072 manual available for free PDF download: Service Manual
Hitachi 8E051072 Service Manual (182 pages)
AIR COOLED WATER CHILLERS, COOLING ONLY AND HEAT PUMP, Cooling capacity 106/112 kW - 585/556/1030 kW
Brand:
Hitachi
| Category:
Chiller
| Size: 18.29 MB
Table of Contents
Table of Contents
7
Product Range and Specifications
13
General Data for RCUE40~400AG2
14
General Data for RHUE40~240AG2
18
Test Run
21
Cabinet
22
Check before Test Run
22
Refrigerant System
22
Electrical System
23
Check before Test Run
24
Test Run Method and Check
24
Water System
24
Cooling Operation (Low Pressure, High Pressure)
25
Heating Operation (Low Pressure, High Pressure)
25
Electrical Consumption Percentage
26
Restart of Test Run
27
Check of High Pressure Switch (Cooling Operation)
28
Check of Low Pressure Cut Control
28
Check of Refrigerant Leakage
28
Temperature Controller
28
Instruction at Delivery
29
During Operation
30
During Product and Electrical Installation
30
Warning & Cautions
30
During Repair and Relocation
31
Other Cautions
31
Electrical Wiring Diagram
33
Model: R(C/H)UE 40~80AG2
34
Power Wiring Diagram
34
Model: R(C/H)UE 100~160AG2
35
Model: R(C/H)UE 180~240AG2
36
Model: R(C/H)UE 280~320AG2
37
Model: R(C/H)UE 350~400AG2
38
Model: R(C/H)UE 40~400AG2
39
Power Wiring Diagram (FAN)
39
Control PCB (Pcbc)
40
Model: R(C/H)UE 40~400AG2
40
Model: R(C/H)UE 280~400AG2 (Secondary Pcbc)
41
Input / Output PCB (Pcbd)
42
Model: RCUE 40~240AG2
42
Model: RCUE 280~400AG2
43
Model: RHUE 40~240AG2
44
Model: R(C/H)UE 40~80AG2
45
Power Wiring Diagram (MCB Option)
45
Model: R(C/H)UE 100~160AG2
46
Model: R(C/H)UE 180~240AG2
47
Model: R(C/H)UE 280~320AG2
48
Model: R(C/H)UE 350~400AG2
49
Diagram Abbreviations Descriptions
50
Control System
51
List of Main Control Function
52
Automatic Temperature Adjustment
54
Water Control
54
Compressor Control
55
Rotation Control
55
Starting Control
55
Actuation of Current Limiter Actuation of Current Limiter
56
Current Limit Control
56
Standard Setting Value of Unload Time
56
Reverse Protection Control
57
Restart Control after Momentary Power Failure (<2 Sec)
58
Restart Control after Power Failure
58
Restart Function after Power Failure <Option> (>2 Sec)
58
Forced Capacity Control
59
Operation Error/Wrong Setting Prevention Control [40 - 40]
59
Second Water Temperature Setting
60
Heat Storage Operation by External Order
66
Operation by DC24V Input (Remote Control)
67
Installation of Switch for Snow Measure (Fan Manual Operation)
70
Antifreeze Control in Winter
71
Switch for Confi Rmation of High Pressure Cut
71
Saving Energy Priority Mode, Silence Priority Mode (Night Shift), Only Cooling
72
Defrost (Only Air-Cooled Heat Pump Type)
74
Thermo off Selection Function
77
Fan Control
78
Electronic Expansion Valve
80
Protection Controls
83
Troubleshooting
85
Check of Power Supply and Connection
86
Initial Check
86
Check on PCB
87
Confi Rmation of Activation Value of Protection Device an Automatic Operation Device
98
Individual Indication for Activation of Protection Device
99
Modifi Cation of PCB Confi Guration
102
Check Function
106
Outline of Failure Diagnosis
110
Troubleshooting
110
Alarm Indication
111
Failure Diagnosis Method
113
Analysis and Countermeasure of Abnormal Running
143
Thermistor Characteristics
147
Thermistor Temperature Characteristics (All Temperature Except Discharge Gas)
147
Thermistor Temperature Characteristics (Ambient)
148
Thermistor Temperature Characteristics (Discharge Gas Temperature)
149
Maintenance
151
Maintenance Criteria
152
Maintenance Criteria of Screw Compressor
154
Criteria of Water Criteria of Water
155
Maintenance of Water Quality
155
Water to be Used
155
Maintenance Method of Water Quality
157
Cleaning of Water Side Heat Exchanger
159
Cleaning of Water Side Heat Exchanger Cleaning of Water Side Heat Exchanger
159
Cleaning Method
160
Caution on Handling of R407C
162
Check Items in Daily Operation
162
Refrigerant
162
Refrigerant Oil
163
Collection of Refrigerant
164
Manual at Compressor Overall Check and Parts Check
164
Reference Materials
164
Refrigeration Cycle Complete Parts
164
Structure and Start-Up Method of Compressor Structure and Start-Up Method of Compressor
165
Refrigerant Cycle Diagram of Hitachi Air-Cooled Water Chiller (RCUE 40, 50, 60, 70, 100, 120, 140, 180, 210, 280, 350 AG2)
168
Refrigerant Cycle Diagrams
168
Refrigerant Cycle Diagram of Hitachi Air-Cooled Water Chiller (RCUE 80, 160, 240, 320, 400 AG2) with Economizer
169
Refrigerant Cycle Diagram of Hitachi Air-To-Water Heat Pump Chiller (RHUE 40, 50, 60, 70, 100, 120, 140, 180, 210AG2)
170
Refrigerant Cycle Diagram of Hitachi Air-To-Water Heat Pump Chiller (RHUE 80, 160, 240 AG2) with Economizer.)
171
Overhaul Work
172
Vacuuming
172
Vacuuming Procedure
172
Leave
173
Additional Refrigerant Insertion
174
Confi Rmation of Tank
174
Measurement Device Used for Refrigerant Insertion
175
Procedure for Refrigerant Insertion
175
Check of Leakage Position
176
Caution at Replacement of Expansion Valve
177
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