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Home > Patent & Intellectual Property Translation > Hitachi Water-Cooled Industrial Chiller Rcuf470wzy Refrigeration Unit Hitachi Compressors Have 107 Patents
Hitachi Water-Cooled Industrial Chiller Rcuf470wzy Refrigeration Unit Hitachi Compressors Have 107 Patents
Hitachi Water-Cooled Industrial Chiller Rcuf470wzy Refrigeration Unit Hitachi Compressors Have 107 Patents
Hitachi Water-Cooled Industrial Chiller Rcuf470wzy Refrigeration Unit Hitachi Compressors Have 107 Patents
Hitachi Water-Cooled Industrial Chiller Rcuf470wzy Refrigeration Unit Hitachi Compressors Have 107 Patents
Hitachi Water-Cooled Industrial Chiller Rcuf470wzy Refrigeration Unit Hitachi Compressors Have 107 Patents
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Hitachi Water-Cooled Industrial Chiller Rcuf470wzy Refrigeration Unit Hitachi Compressors Have 107 Patents
Hitachi Water-Cooled Industrial Chiller Rcuf470wzy Refrigeration Unit Hitachi Compressors Have 107 Patents
Hitachi Water-Cooled Industrial Chiller Rcuf470wzy Refrigeration Unit Hitachi Compressors Have 107 Patents
Hitachi Water-Cooled Industrial Chiller Rcuf470wzy Refrigeration Unit Hitachi Compressors Have 107 Patents
Hitachi Water-Cooled Industrial Chiller Rcuf470wzy Refrigeration Unit Hitachi Compressors Have 107 Patents

Hitachi Water-Cooled Industrial Chiller Rcuf470wzy Refrigeration Unit Hitachi Compressors Have 107 Patents

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Product Description

Basic Specifications
Model NO.
RCUF470WZY
Type
Water-Cooled
Cooling Method
Water-cooled
Unit Structure
Integral
Voltage
380V/50HZ
Compressors
2
Application
Electroplating / Precision Machine Tool
Cooling Capacity
1647kw
Refrigerant Type
R134A
Unit Capacity Range
0.25%-100%
Product Description & Features

High-Efficiency Water Cooled Screw Chillers

Model Identification & Unit Structure:

Model Code
Unit Structure

Key Efficiency Advantages:

  • Adopt the latest R134a high efficiency twin-screw compressor with great capability and higher stability.
  • Equipped with refrigerant distributors for both inlet and outlet of evaporator, improving heat exchanger efficiency.
  • Flooded units feature efficient oil scavenge pumps and optoelectronic level switches for reliable operation.
  • Application of Differential Pressure Flow Switches ensures effective anti-freezing capability.
High Efficiency
Semi-Hermetic Twin-Screw Compressor

The G-type compressors provide superior service through independently developed rotors that decrease internal leakage.

  • Capacity Control: Stepless Adjustment 100%~25%.
  • Double-Casing Design for reduced operating noise.
  • Internal motor cooled by refrigerant to lower fault rates and prolong service life.
  • Pressure differential oil supply ensures high reliability and easy maintenance.
Compressor Technology
Advanced Components
Condenser
Oil Separator
Evaporator

The centrifugal oil separator reduces energy consumption by eliminating filter resistance, significantly improving the COP of the unit.

Microcomputer Control System
  • 7-inch LCD touch console for intuitive visualization.
  • Real-time status monitoring and 10-event warning log function.
  • Continuous capacity control for stable temperature adjustment (±0.5°C).
  • MODBUS-RTU alternative for Building Management System integration.
Control Console
System Interface
Complete Safety Protections
Safety valve for high-pressure emergency.
Three-section over-current protection.
Over-high exhaust temperature protection.
Differential water pressure switch (Anti-freezing).
Compressor motor temperature thermostat.
Optoelectrical oil level switch protection.
Phase reversing protecting device.
Anti-crystallization protection for evaporator.
Technical Parameters
Model Cooling (kW) Cooling (RT) Comp. Qty Total Power (kW) Chilled Water Flow (m³/h) Length (mm) Width (mm) Height (mm) Dry Weight (kg)
RCUF125WZY443.1126.0286.9176.203,2161,0971,5682,190
RCUF155WZY548.9156.1198.1994.413,3201,7002,2583,494
RCUF210WZY732.1208.21130.9125.93,3201,7002,2583,900
RCUF260WZY914.9260.21163.7157.43,3201,7002,2584,060
RCUF310WZY1,098312.32196.4188.94,6931,7662,3187,011
RCUF470WZY1,647468.42284.4283.34,6931,7662,3187,812
RCUF520WZY1,830520.42316.0314.74,6931,7662,3188,052
External Dimensions
Dimensional Data
Frequently Asked Questions
Q1: What is the adjustment range for the cooling capacity?
A: The unit supports stepless capacity adjustment ranging from 25% to 100%, allowing for precise load matching and energy savings.
Q2: Which refrigerant is used in these screw chillers?
A: These chillers are designed specifically for R134a, which is an efficient and eco-friendly refrigerant.
Q3: How does the oil separation system work?
A: The units adopt a centrifugal/cyclone oil separator. Unlike traditional filters, it creates no resistance, reduces compressor energy consumption, and significantly improves the COP.
Q4: Can the chiller be integrated into a smart building system?
A: Yes, the control system supports MODBUS-RTU as an alternative, allowing seamless connection with Building Management Systems (BMS).
Q5: What safety measures are in place to prevent freezing?
A: The unit is equipped with a Differential Water Pressure Switch and an Anti-freezing protector that stops operation if chilled water flow is too low.
Q6: What are the main application fields for this refrigeration unit?
A: It is widely used in industrial applications such as electroplating, precision machine tool cooling, and other large-scale industrial refrigeration needs.

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