Does it support variable capacity or inverter control?

Aurashu screw chillers are engineered to operate efficiently across a wide load range. Unlike fixed-capacity systems that frequently start and stop, Aurashu units regulate cooling or heating output to closely match real-time building demand. This significantly improves part-load efficiency, reduces energy waste, and enhances system stability.

Capacity modulation is achieved through:

Slide valve or volume ratio (Vi) control within the screw compressor

Multi-step unloading (e.g., 25% / 50% / 75% / 100%)

Smart PLC logic that continuously adjusts capacity based on water temperature, pressure, and system load

This approach ensures smooth transitions during load changes and prevents temperature fluctuations in critical environments such as data centers, hospitals, and industrial processes.

For projects with highly variable loads or strict energy-efficiency targets, Aurashu offers inverter-driven screw chiller solutions. By integrating a Variable Frequency Drive (VFD), the compressor motor speed is continuously adjusted rather than operating at a fixed speed.

Key advantages of inverter control include:

Precise output matching to actual cooling/heating demand

Lower starting current, reducing electrical stress on the power grid

Significantly improved IPLV and seasonal efficiency

Reduced mechanical wear, extending compressor service life

At partial loads—where most HVAC systems operate for the majority of the year—inverter-controlled units can achieve substantial energy savings compared to conventional on/off or stepped systems.

Aurashu variable-capacity and inverter chillers are equipped with intelligent control platforms that support:

Real-time load monitoring

Automatic capacity optimization

Remote monitoring and fault diagnostics

Integration with BMS protocols such as Modbus, BACnet, or LonWorks

This allows facility managers to fine-tune performance, reduce operational costs, and maintain optimal comfort or process conditions with minimal manual intervention.

Aurashu understands that different projects require different control philosophies. Variable capacity and inverter solutions can be customized based on:

Building type and usage pattern

Climate conditions

Electrical infrastructure

Redundancy and reliability requirements

Whether the application is a large commercial complex, industrial plant, pharmaceutical facility, or data center, Aurashu engineers tailor the control strategy to ensure efficiency, reliability, and long-term performance.

By supporting variable capacity and inverter control, Aurashu screw chillers deliver:

Lower annual energy consumption

Reduced operating noise

Improved temperature stability

Extended equipment lifespan

Faster return on investment (ROI)

These advantages make Aurashu solutions particularly suitable for projects pursuing green building certifications, energy cost optimization, or high-performance HVAC system design.