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Hitachi Manuals
Chiller
RCME Series
Service manual
Hitachi RCME Series Service Manual
Water cooled water chillers -modular-r134a-screw type
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
General Information
General Notes
Safety and Applied Symbols
Norms and Regulations
Product Guide
Classification of Water Chiller Models
Product Guide: Water Chillers
Control Functions
Control Functions on the Module
Water Control
Water Temperature Control
Compressor Control
Control for Recovery from Power Interruption (Option)
Prevention of Simultaneous Startup
Reverse Prevention Control
Control for Prevention of Wrong Operation and Wrong Settings
Demand Control
Forced Load up Capacity Control from External Signal
2-Temperature Setting Function
External Thermo Operation from External Contact
Water Temperature of the Control Target
Operation from DC24V Contact Input
Thermo off Function Selection
Selection of Enabling/Disabling of Alarm Release by Means of Remote Stop
Limitation Setting for Pump Feedback Waiting Time
Inlet Water Temperature Thermo off Function
Control of the Cooling Cycle
Compressor Control
Expansion Valve Control
Overcurrent Protection Control
Control of Master/Slave Group
Summary of Control of Master/Slave Group
Setting Method
Operation Method
Other Functions of the Control of Master/Slave Group
Setting Items
Method for Setting and Confirmation of Operation Conditions through the LCD Screen
Run Operation
Setting of Switches on the Setting PCB
Operation Control of the Module
Time Chart
Servicing
LCD Display for Service Menu
General Notes
Cycle Components
Compressor Removal
Overhaul Work
Recovering the Refrigerant
Replacement of the Condenser
Replacement of the Cooler
Replacement of Expansion Valve
Filter Drier
Replacement of the Check Valve
Replacement of the Stop Valve (with Check Joint)
Replacement of the High Pressure Switch (PSH)
Replacement of the Pressure Sensor (Pd)
Replacement of the Pressure Sensor (Ps)
Replacement of the Pressure Sensor (PSW)
Replacement of the Pressure Relief Valve
Replacement of the Sight Glass
Replacement of the Stop Valve (X3)
Repalacement of the Thermistor (Suction, Thms)
Replacement of the Thermistor (Discharge, Thmd)
Replacement of the Crankcase Heater (CH)
Replacement of the Thermistor (Evaporation, Thme)
Replacement of the Thermistor (Cooler Water Inlet, Thmwi)
Thermistor (Cooler Water Outlet, Thmwo2)
Thermistor (Cooler Water Outlet, Thmwo)
Replacement of the Solenoid Valves (Sva, Svb, Svc)
Electrical Components
The E-Box
Removal of the LCD Screen
Replacement of Lamps and Push Buttons
Access to Electrical Components
Removal of the Pcb's
Transformer (TF1)
Transformers (TF2, TF3, TF4)
Overcurrent Relay (ORC)
Contactors (CMC, CMCD, CMCS)
Fuses (EF1, EF2, EF3. EFR, EFS, EFT)
Fuses (PFC)
Relays
Main Switch
Troubleshooting
Inspection of Power Source and Connections
Inspection of PCB
Confirmation of Operating Value of Protection Devices and Automatic Operation Devices
Protection Control Function
Alarm Indication
Summary of Fault Diagnosis
Method for Fault Diagnosis
Troubleshooting by Alarm Code
Analysis and Countermeasure of Abnormalities
Thermistor Characteristics
Thermistor Temperature Characteristics (All Temperature Except Discharge Gas)
Thermistor Temperature Characteristics for Discharge Gas Temperature
Pressure Sensor Characteristics
High-Pressure Sensor
Low-Pressure Sensor
Procedures for Trouble
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Quick Links
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General Information
2
Control Functions
3
Troubleshooting by Alarm Code
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SAMURAI SERIES
WATER COOLED WATER CHILLERS
-MODULAR-R134a-SCREW TYPE-
Service Manual
RCME-(40-70)WH1
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Table of Contents
Troubleshooting
Troubleshooting
97
Troubleshooting by alarm code
105
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