MyProgressiveRailroading

Passenger Railcar Systems

Passenger Railcar Systems
Passenger Railcar Systems group will provide a forum for issues surrounding all systems used on Passenger rail equipment. Example systems would be HVAC, Brakes, Lighting, Trainlines, Couplers, Propulsion, Communications, Seating, Materials, etc.
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  • Forum Post: R-22 Refrigerant Replacement

    There are a number of possible HFC replacements for HCFC-22 (R-22) in existing R-22 systems that EPA has approved for passenger train end use. They include R407A, R424A, R434A, and most recently R438A. Does anyone have any conversion experience they would be willing to share?