Danfoss Launches Optimized R290 Brazed Plate Heat Exchangers for Lower Charge and Higher Heat Transfer

As part of its commitment to developing climate-friendly solutions, Danfoss has expanded its brazed plate heat exchanger portfolio with new products specifically designed for propane (R290) heat pumps. These innovations feature the advanced Micro Plate™ technology, enabling higher heat transfer efficiency and reduced refrigerant charge.

Responding to the Demand for Natural Refrigerants

In light of global regulations limiting the use of F-gas refrigerants, Danfoss has introduced three cutting-edge brazed plate heat exchangers that are optimized for R290 refrigerant. The new range includes the H39L-EZU evaporator, H62L-CZ condenser, and the HDW30-C/HDW44-C double-wall heat exchangers, all designed to improve energy efficiency and sustainability in both residential and light commercial heat pump systems.

Product Range and Features

H39L-EZU Evaporator The H39L-EZU is designed to operate efficiently as either an evaporator or condenser in reversible heat pump systems. With a unique mixing chamber and superheating regions, it ensures optimal refrigerant distribution and superior performance, even at partial loads.

• Key Specifications:
  • Material: AISI 304L cover, AISI 316L plates
  • Brazing material: Copper
  • Temperature range: -196°C to 200°C
  • Max. working pressure: 49 bar (refrigerant side), 25 bar (water side)
  • Capacity: 5-15 kW

H62L-CZ Condenser Optimized for R290 applications, the H62L-CZ condenser features an asymmetric plate design that minimizes material use while enhancing heat transfer and reducing water-side pressure loss.

• Key Specifications:
  • Material: AISI 304L cover, AISI 316L plates
  • Brazing material: Copper
  • Temperature range: -196°C to 200°C
  • Max. working pressure: 49 bar (refrigerant side), 25 bar (water side)
  • Capacity: 20-70 kW

HDW30-C/HDW44-C Double-Wall Heat Exchanger The HDW30-C and HDW44-C are designed to prevent cross-contamination in systems where liquids must not mix. Ideal for condenser or desuperheater applications, these double-wall heat exchangers provide safe and reliable operation for hot water systems.

• Key Specifications:
  • Material: AISI 304L cover, AISI 316Ti plates
  • Brazing material: Copper
  • Temperature range: -196°C to 200°C
  • Max. working pressure: 35 bar (refrigerant side), 16 bar (water side)
  • Capacity: 3-15 kW

A Step Towards Sustainable Cooling Solutions

These new brazed plate heat exchangers are part of Danfoss' ongoing commitment to support OEMs with advanced, sustainable solutions for heat pumps. As Mads Pinnerup, Head of Brazed Plate Heat Exchangers at Danfoss, stated, "Our extended portfolio is designed to lower the carbon footprint and increase the energy efficiency of heat pumps. These innovations reflect our commitment to developing sustainable solutions that meet the needs of the changing energy landscape."

By providing a wide range of capacities and advanced features, Danfoss is helping manufacturers meet the growing demand for efficient and environmentally friendly cooling systems.