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Keeping it cool and green

23 February 2018

Eleven commercial condensing units are a vital component for Delifresh, specialist fresh food supplier. 

The company delivers a wide variety of fruit, vegetables and fine produce – including charcuterie, dairy, cheese and speciality ingredients to hotels, restaurants and the catering trade. The J & E Hall condensing units are serving the company's newly-built warehouse and distribution depot which has a total floor area of more than 1200m2. A round-the-clock operation, to serve customers in the north east, employs 35 staff at the premises with a fleet of 15 refrigerated vehicles used to deliver the goods.

Delifresh recently moved to new premises where it specified the use of two JEH2-0725-L3 commercial condensing units operating at -20°C are serving a freezer room where various products including herbs, spices, bread and vegetables are kept. Nine JEHS-0600-M3 commercial condensing units are employed in other areas on the premises. 

Two are operating in a chill room at 4°C, where various fruit and vegetables are stored ready for dispatch. Three units are running in the packing and preparation area at 5°C, while four more units are serving a dispatch area operating at 5°C.

"It was a short project, which from the initial design stage to completion took 12 weeks. Delifresh hoped for a smooth transition from their old premises to the new site and we delivered within the time restraints and within budget," said Jason Jackson, a director of James Mae Refrigeration, the Bradford-based company which completed the work. 

It was relatively straightforward. All nine units are operating on the low GWP R407F refrigerant which replaced R404A, which is being phased out under the F-Gas Regulations.

They offer a good solution for commercial refrigeration sectors where noise, size and reliability are paramount. Housed in a cabinet made of electro-galvanised mild steel, with an anti-corrosion treatment, and coated in baked polyester powder paint, the units are able to withstand the most stringent weather testing. An integral IP54 rated control panel provides further protection to all essential electrical components. All units are acoustically lined.  All condensing units come complete with all components fitted during manufacture to save the installer time and money. Fusion and Fusion Scroll condensing units are available for medium and low temperature applications.  Installation of the nuts is simplified by hinged doors that provide simple access for service and maintenance. 

Commenting on the solution, Reuben Sutterby, sales director at Delifresh, said: “J & E Hall's reputation and track record was taken into account when choosing the refrigeration equipment for the new premises. We had some good feedback from people. Environmental friendliness and cost were also factors in making our decision.”

In another recently completed project J & E Hall installed an ammonia-based system at a large cold store to provide more efficient and easy to maintain refrigeration with green credentials.

Ammonia has a good safety record and is used in many applications in the food processing and drinks industry, where refrigeration is a necessity. Much of the old ammonia refrigeration equipment had become obsolete and difficult to maintain so was replaced with new refrigeration plant which requires minimum maintenance. A key consideration was to install the new equipment in a -22°C cold store – with a seamless phase-out of the ammonia system – without disrupting day-to-day operations of this cold store. This was achieved and two semi-hermetic, economised screw compressor packages operating on R407F were chosen to replace the old system. John Davies said: “Once the cooler and compressor packs were commissioned, the ammonia plant was switched off, and the new equipment maintained the temperature within the cold stores.”

The new ammonia system is smaller and more efficient to operate and the new owners are already seeing substantial savings in servicing costs because maintenance of the old plant was a costly exercise.


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