M&M Carnot Unveils Line of Industrial CO₂ Condensing Units

M&M Carnot Refrigeration has announced the release of Aquilon DS, a new line of CO₂ air-cooled condensing units (CDUs) for industrial applications.

The Aquilon DS product line extends the company’s industrial refrigeration product portfolio of transcritical CO₂ solutions, which already include industrial racks, chillers, heat pumps, and Aquilon DC (data center) cooling systems. Applications for the new line include cold-storage/refrigerated warehouses, food processing, dairies, wineries and data centers.

CO₂ condensing units, while used widely in Japan and Europe, have been relatively rare in North America.

“The Aquilon DS product line confirms our commitment to products that use environmentally safe, natural refrigerants,including CO₂ in this product, ammonia in our packaged products/systems, and both ammonia and CO₂ in our cascade systems,” said M&M Carnot in a statement.

The Aquilon DS product line includes fully welded stainless-steel piping, high- pressure compressors, and system components as standard. All Aquilon DS CDUs have fully integrated air-cooled condenser/gas coolers with an option for adiabatic condensers. The high stand-still pressure design protects against refrigerant (and synthetic oil) releases during system off-time or electrical outages, said M&M Carnot.

“While the high-pressure design provides a higher level of safety and system availability, it also helps you sustain your carbon footprint by eliminating the need for a back-up generator,” the company added.

All Aquilon DS CDUs provide the following energy-efficiency features as standard: EC fans, VFD compressor drives, liquid sub-coolers, and sensible hot-gas defrost. Optional energy-efficiency features include heat recovery and free cooling.

The Aquilon DS CDUs range in capacity from 10 to 75 TR (35 to 264kW), with operating evaporator temperatures from -40°F to 40°F (-40°C to 4.4°C).

M&M, based in Federalsburg, Maryland (U.S.), acquired Carnot, based in Trois-Rivières, Québec, Canada, in 2019.