The Alfa Laval AC540DQ brazed-plate heat exchanger is suitable for hydrocarbon refrigerants. The AC540DQ is specifically designed to work in air conditioning and refrigeration applications as evaporators and condensers in chillers and heat pumps. The AC540 series is ideal for use with multiple-scroll chillers ranging from 250kW to 800kW (71.1 to 227.5TR) capacity. It is 750mm (29.5in) high and 400mm (15.7in) wide.
The Alfa Laval AC540DQ heat exchanger has the company’s own DynaStatic distribution system integrated. This system can be optimized for a particular refrigerant and application, and provides high performance in evaporation and condensing duties. In many cases, this performance can be 20 – 40% greater than comparable heat exchangers without a distribution system. This offers big advantages both for reversible systems and when defrosting is key to the application.
• Cascade systems
• Easy to install
• Low level of service and maintenance is required
• All units are pressure and leak tested
• Gasket free
The brazing material of the Alfa Laval AC540DQ seals and holds the plates together at the contact points ensuring optimal heat transfer efficiency and pressure resistance. Using advanced design technologies and extensive verification guarantees the highest performance and longest possible service life.
Different pressure ratings are available for different needs. The True dual-circuit design provides a higher freezing resistance compared to back-to-back solutions. Asymmetric channels provide optimal efficiency in the most compact design. This results in low refrigerant charge or lower pressure drop on the water or brine side, reducing the CO2 footprint. The asymmetry guarantees the best performance in both full and partial-load conditions. Designed for high-efficiency applications, such as those applications with high evaporation temperature and low water/brine pressure drop. This results in reduced environmental impact and lower costs.
The integrated distribution system ensures an even distribution of the refrigerant throughout the plate package. Based on standard components and a modular concept, including symmetric and asymmetric channels, each unit is custom-built to meet the specific requirements of each individual installation.