COLD STORES R-513A


■Low GWP (631*) ■A1 safety class ■ Alternative to R-134a in new equipment, for use in medium and low temperature refrigeration and heat pumps


■ Long-term sustainable and compliant with GB F-Gas legislation ■Energy effi ciency comparable to R-134a ■Azeotropic refrigerant with zero glide ■ Supported and approved by major equipment manufacturers. Commonly used in the installation of commercial and industrial


refrigeration applications as well as air conditioning, liquid chillers and heat pumps. It can be used in direct expansions and fl ood systems. * F-Gas AR4


The implementation of 160 Kg of R-513A ran smoothly. No signifi cant


diff erences were encountered in practices when transitioning from equipment using R-134a to equipment using R-513A. The team could apply the same methods as they had previously used, allowing for a smooth changeover. As a result, the system worked well with the refrigerant and performed as expected. The transition to the new system demonstrates good energy effi ciency


and lower emissions, resulting in a lower GWP. This has contributed to overall operational cost reductions, as well as easing demands on the carbon footprint. The installation of a Dixell XWEB remote monitoring system across all cold store facilities has also provided a method to help control and monitor the cold store. Both the end customer and Castle Commercial Refrigeration can now monitor the performance of compressor packs, including potential metrics such as superheat and subcooling, in real time. This system also enables remote control of store operations, including the activation and scheduling of defrost cycles. In addition to this remote monitoring system, a CCTV system was also installed, featuring cameras positioned behind the evaporators in every cold store, to monitor for any ice buildup. This is a crucial advantage as once the stores are sealed, there would be no access for up to 12 months or more. The ability to troubleshoot issues remotely minimises the need for on-site callouts. For instance, if ice buildup occurs, the monitoring system enables engineers to initiate defrost cycles immediately, saving time and reducing service costs for the end customer. As a result, the end user not only saves on operational costs but also has a new system that is more energy effi cient, resulting in lower emissions. The design of the cold store signifi cantly contributed to the project’s success. Utilising twin compressor packs with the lead compressors controlled by a Bitzer inverter, the system included remote condensers located outside the facility, equipped with Electronically Commutated (EC) fans. These EC fans can reduce the energy consumption by up to 70% compared to traditional alternating current fans, improving overall system effi ciency. The Dixell pack controller controls the fans. Facilitating optimal performance


and responsiveness to varying conditions inside the cold stores. Additionally, electronic expansion valves were fi tted in the stores to enhance effi ciency and reduce costs; these components have been performing well since installation. Since the completion of the last phase in January 2023, the new equipment


has proven eff ective in achieving the desired temperature control, critical for maintaining the freshness of fruit during storage. The successful integration of the new equipment has allowed the grower to manage their inventory more eff ectively. As a result, the fruit can be monitored to ensure all product meets the high standards expected by supermarket partners. The project has successfully achieved its objectives, resulting in enhanced cold storage systems for the fruit grower.


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Kit comprises of: 4 x Nylon Buffalo Panel Bolt 4 x Nylon Loadspreading Washer 4 x Nylon Washer Faced Nut


Nylon is an excellent thermal break for fixing evaporators in cold rooms


No corrosion, no frost build up


Available in M8, M10, M12 diameters, popular lengths, 150mm/200mm/255mm (depending on panel thickness)


https://www.bluemay.co.uk/products/buffalo-bolts


Nylon is suitable for a temperature range of -30 degrees C to +50 degrees C


Safe working loads per single bolt: M8 - 50kg M10 - 80kg M12 - 120kg


https://www.bluemay.co.uk/products/ stock-products-technical-data


Manufactured in the UK for immediate despatch Worldwide Call Julietta/Amanda today


01380 821821 sales@bluemay.co.uk www.bluemay.co.uk


www.acr-news.com • July 2025 17 Buffalo Evaporator Fixing Kit


FANS


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