SUPERMARKET REFRIGERATION
traces often remain after a cabinet is cleaned, allowing it to begin growin g back again immediately which can lead to bacterial slime re-blocking the condensate tray just weeks after a clean .
The Solution
For Refrigeration engineers, the key to success and achieving continuous on-going operation of refrigeration systems lies with the correct pump specification plus thorough and regular maintenance of the whole system. Pumps such as Aspen Pumps’ Low Profile ERRP, ERRP or Cold Cabinet refrigeration pumps are designed to remove large amounts of condensate from refrigeration units with large tank capacities and high flow rates, perfect for commercial use. Once installed, these pumps can be relied upon to work hard in the background to keep the system running optimally.
However, the challenge doesn’t end there. The build-up of slime is inevitable in any refrigeration system and the greater the
volume of condensate removed, the greater the build-up can be. Keeping slime at bay across the whole system is essential to keep drainage clear and pumps in top condition. Many
en gineers consider it inevitable to find slime under a chiller cabinet’s base plate but with the right process it can provide many months of trouble-free use.
High-powered water jets have been traditionally used to keep supermarket refrigeration clean. However, although this is a quick cleaning method it does not give an effective deep clean and bacteria returns quickly.
Therefore, a thorough maintenance
routine is needed that effectively tackles the biofilm and removes all traces and keeps the slime from blocking the condensate drains and leading to the burn out of condensate pumps or system leaks. Fortunately, specially engineered cleaning chemicals are now available that are quick and easy to use and their long-lasting effects mean less regular maintenance is required.
To stop the fast re-growth of slime, there are three simple maintenance steps to follow. Firstly, you need to ensure free flowing drains. Most engineers will be familiar with sucking out local blockages with a wet/dry vac. For added piece of mind, a chemical drain unblocker can be used, which will ensure all
slime is removed further down the drain line. Secondly, all of the slime needs to be cleared and the micro-organisms which cause it, killed from the evaporator coil and plastic case work. To ensure that even the resistant bacteria is eliminated, a cocktail of biocides and
surfactants that are effective on bacteria, algae and mould should be used. Finally, to stop new slime forming, a lasting dose of biocides and surfactants, such as Jally Strips from Advanced Engineering, will continue to kill all the relevant organisms. By following these steps, maintenance engineers can be sure the treatment will provide up to 12 months protection, resulting in fewer maintenance calls and happy customers.
When it comes to refrigeration maintenance, a more thorough and effective clean during routine maintenance can save time by providing better results and saving costs on more frequent return visits.
By future-proofing systems against
avoidable breakdowns, engineers can offer a better service to customers, resulting in fewer call outs between maintenance visits and also keeping shoppers safe from slips and falls.
Petra
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