EBARA-TWO-STAGE CENTRIFUGAL CHILLER-RTVC

Specification

1. Breakthrough Motor & Drive Technology

Unlike conventional models that utilize speed-increasing gears, the RTVC integrates the latest mechanical innovations:

• Direct Drive: By completely eliminating the gear-drive system, the unit reduces mechanical loss, enhances transmission efficiency, and extends equipment lifespan.

• Integrated 380V VFD Motor: Utilizing a Variable Frequency Drive to control motor speed directly, the system ensures the machine consistently operates at its peak efficiency point relative to the building's actual load.

• 3D Closed Impeller: The impeller features a closed design (no tip clearance), optimizing compression efficiency and airflow stability.

2. Optimized Thermodynamic Cycle with Economizer

The RTVC employs two-stage compression technology combined with an Economizer to achieve an ideal Coefficient of Performance (COP):

• 5% - 8% Efficiency Increase: Refrigerant vapor from the economizer is injected directly into the second compression stage, significantly increasing cooling capacity compared to standard single-stage cycles.

• Anti-Surge Solution: Thanks to the two-stage compression structure and advanced ECO control technology, the unit boasts an extremely wide operating range and maintains stability even when the load drops as low as 10%.

3. Durable and Reliable Construction

• Flooded Evaporator: Optimizes the arrangement of heat exchange tubes to maximize cooling performance.

• Next-Gen Heat Exchange Tubes: High-efficiency copper tubes featuring enhanced internal and external surfaces, specifically designed for R134a refrigerant to boost heat transfer.

• Tube Protection Design: Support plate holes are finely radiused, and tube thickness is increased at contact points to extend service life and prevent leakage.

• Operational Safety: An integrated differential pressure flow switch protects the heat exchange tubes from freezing risks in the event of low water flow.

4. Ebara ERICS Intelligent Control System

The next-generation ERICS (Ebara Intelligent Control System) provides a seamless operational experience:

• Precision Temperature Control: Maintains a stable chilled water outlet temperature with an ultra-low margin of error ±0.1°C.

• Smart Start: The "One-button" fully automated function eliminates manual operation errors that could jeopardize the equipment.

• Auto-Restart: The unit automatically resumes operation after power is restored within a specified timeframe.

• Versatile Connectivity: Equipped with built-in RS485 supporting Modbus-RTU, Modbus TCP, and TCP/IP protocols; expandable to BACnet or Profibus for seamless BMS integration.