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Air-Cooled Chiller Demand Flow Controller – EKG M&E Sdn Bhd

At EKG M&E Sdn Bhd, we offer advanced demand flow controller solutions for air-cooled chillers, designed to intelligently manage and optimize the flow of chilled water and refrigerant in real-time. By dynamically adjusting flow rates based on cooling demand, our demand flow controller enhances energy efficiency, reduces equipment wear, and ensures stable operation across varying load conditions.

What Is a Demand Flow Controller?

A demand flow controller is an integrated control system that continuously monitors and adjusts key parameters—such as chilled water flow, compressor load, fan speed, and expansion valve operation—based on the actual cooling demand. It serves as the brain behind smart chiller operation, maintaining performance without unnecessary energy consumption.

Key Features of Our Demand Flow Controller

• Real-Time Flow Optimization
  Continuously adjusts pump and fan speeds using VSDs to match system demand.

• Integrated Sensor Feedback
  Utilizes data from temperature, pressure, and flow sensors to fine-tune refrigerant and water flow.

• Load-Adaptive Compressor Control
  Coordinates compressor staging and unloading to prevent short cycling and reduce energy spikes.

• Intelligent Expansion Valve Management
  Adjusts TXVs or EXVs to maintain optimal superheat and refrigerant flow rates.

• System-Wide Communication
  Seamlessly integrates with Building Management Systems (BMS) for centralized monitoring and control.

• Energy Optimization Algorithms
  Implements logic to maintain the lowest kW/ton ratio at all times.

Benefits of a Demand Flow Controller

• Reduces energy usage by 10–40%, especially during part-load operation

• Enhances cooling consistency and temperature stability

• Minimizes mechanical wear and prolongs equipment life

• Prevents system inefficiencies, such as over-pumping or low delta-T

• Enables smooth, automated staging of multiple chillers or compressors

• Supports green building compliance and energy certifications

Ideal Applications

• Commercial buildings with variable occupancy

• Data centers requiring precise temperature control

• Healthcare and industrial facilities with critical cooling needs

• Chillers with multiple zones or variable air volume (VAV) systems

• Any facility pursuing energy cost reduction and system optimization

Why Choose EKG M&E Sdn Bhd?

• Proven success in chiller automation and intelligent control systems

• Custom-designed demand flow controllers tailored to your chiller configuration

• Skilled in integrating with existing VSDs, sensors, and BMS platforms

• Full service from design and commissioning to post-installation support

• Transparent results backed by data logging and performance reporting

Final Thoughts

Upgrading your air-cooled chiller with a demand flow controller is one of the most effective ways to boost energy efficiency, system reliability, and operational savings. Let EKG M&E Sdn Bhd design and deploy the perfect control solution for your needs.
Contact us today to schedule a consultation or request a customized controller proposal.