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  1. #1
    Join Date
    Dec 2005
    Location
    USA
    Posts
    228
    Rep Power
    20

    R471a to replace the co2 rack just an idea



    As an older professional who began in this trade with R12, R22, R502, and cleaning tools with R11, it's clear that the refrigeration world has become overly complicated. A3 refrigerants with capacity and flammability issues, A2Ls with unique safety concerns, and R744 with an overwhelming number of controls have transformed our industry. I recently spoke to a grocer who asked, “Who's driving this train?" While it's evident that the EPA and DOE guide us to reduce everything related to GWP and energy consumption. Companies have responded by evolving our once simple thermostat or pressure-controlled systems into the complex systems we have today.

    Our conversation turned to CO2, discussing its significant upfront expenses and maintenance costs. While companies that manufacture the controls and components are profiting, service companies struggle to keep up with the rapid changes in technology. This is where R471A comes into play. An A1 refrigerant with a GWP of 148, R471A offers a potential solution to eliminate the complicated CO2 supermarket racks and their intricate controls.

    Imagine an 8-foot center island (two-sided) and two-end cap cases as a single self-contained unit in a supermarket, powered by a single water-cooled condensing unit. Hook up the water for cooling, and it's done. A cooling tower replaces the rack. This simplicity could make a significant difference in managing costs and maintenance while keeping up with regulatory demands and technological advancements.

    In my experience with medium-temperature display cases, it's clear that finding more streamlined solutions, like R471A, can help ease the transition and maintain efficiency. The HVACR industry may be evolving rapidly, but with the right approach, we can adapt and continue providing valuable services to our clients.



  2. #2
    Join Date
    Mar 2001
    Location
    ireland
    Age
    54
    Posts
    1,453
    Rep Power
    41

    Re: R471a to replace the co2 rack just an idea

    You'll find the discounters like Aldi and Lidl have gone back to integral units with water cooling (here away), these have done away with racks and long pipe runs.

    I've not come across 417a.
    Mostly found in the southern part of this green and pleasant land.

  3. #3
    Join Date
    Dec 2005
    Location
    USA
    Posts
    228
    Rep Power
    20

    Re: R471a to replace the co2 rack just an idea

    Snap has approved 471A in September 23 for stand alone medium temp. So Aldi and Lidle are using stand alone with water cooling... Here in the states they are all propane. intresting

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