This caught many in HVAC industry by surprise, and transition date of January 1, 2024 for chillers, alignment with California's HFC phasedown..
For the longer term, Daikin Applied plans to utilize A2L refrigerant R-1234ze, said Dietrich.
Johnson Controls has long been champion of the transition to lower- GWP refrigerants, said Brian Smith, director of global project management at Johnson Controls, and the company has spent years testing, evaluating, and implementing these refrigerants, order to deliver both footprint and high-performance outcomes in low-, medium-, and high-pressure chiller systems...
In particular, R-1234ze, R-1233zd, R-454B, R-515B, and R-513A refrigerants have among GWP on the market and are in use within range of Johnson Controls chiller solutions in U.S., said Smith..
In fact, our York YVFA Free-Cooling, Variable-Speed Screw Chiller was the first of its kind to use R-1234ze in U.S., and York YLAA was the first air-cooled chiller to use A2L refrigerant R-454B...
Trane also offers broad range of chillers that use variety of refrigerants with GWPs of less than 700, including low-pressure R-514A and R-1233zd for large water-cooled centrifugal chillers, said Chris Hsieh, applications engineer at Trane...
R-454B will replace R-410A in most of Trane's air-cooled chillers, efficiency, and impact on the environment, said Hsieh...
In North America, Carrier will R-513A, R-515B, and R-1234ze in medium-pressure centrifugal and screw chillers R-1233zd in low-pressure centrifugal chillers and R-32 scroll chillers, said Tom Franaszek, director of management-water cooled chillers at Carrier...
CO2 is used water heating Hsieh pointed out that basic principles of Rankine cycle thermodynamics suggest that the efficiency for refrigeration, comfort cooling, and heating depends on the temperature.
Regarding the safe handling of certain new alternatives like A2L refrigerants R-454B, R-32, R-1234yf, and R-1234ze, that thorough testing conducted by ASHRAE and AHRI has resulted in updated protocols for usage, application, handling, and service...
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