For nearly a decade, the use of R-290 (refrigerant-grade propane) has experienced a gradual adoption increase among U.S. foodservice applications.

Editor’s Note: This is the sixth and final article in our series on cold rooms.

This 40-to-80 ton water-cooled air conditioning unit features a cassette construction with small modular sections and footprint. It fits through a standard-size doorway and most elevator doors, facilitating a faster, money-saving installation process.

As with any refrigeration system, controlling the flow of refrigerant is vital in making a cold room operate properly. Two of the most common types of refrigerant control valves are thermostatic expansion valves and solenoid valves.

Editor’s Note: This is the fourth part in our series of articles on cold rooms.

The design and magnitude of a new residential indoor pool built onto a 21,000-square-foot, 100-year-old home named “Daybreak” in Montclair, New Jersey, confronted mechanical engineers with psychrometric and sustainability challenges on par with huge commercial indoor waterparks.