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SUMMER MAINTENANCE


THE A-Z OF PMV


With summer maintenance season in full swing, Chris Cutler of Riello UPS, explains why it’s the perfect time to give your UPS system a little bit of TLC to boost its reliability, performance and effi ciency.


Many of us will get an annual service for our cars, boilers, or the like to gain that extra peace of mind that they’re running properly and unlikely to break down.


A preventive maintenance visit (PMV) offers similar reassurance for your critical uninterruptible power supplies (UPS), the unsung heroes working behind the scenes to keep your facility’s equipment operating safely when there’s an issue with the electricity.


Pretty much every UPS maintenance contract will include provision for at least one planned PMV a year, but they’re also an ad-hoc option for facilities managers without the safety net of such ongoing support in place. Think of them as a regular ‘health check’ that will make sure your UPS is in the best possible working condition.


Ultimately, a PMV reduces the risk of a major failure, which in turn lessens your likelihood of experiencing major downtime.


In safe hands Before we get to the nitty-gritty of what a PMV involves, there’s something important to consider – who’s actually going to be carrying out the service visit?


36 | TOMORROW’S FM


While it might be tempting to let your general maintenance or electrical engineer take a look, a UPS system is a complex piece of kit that needs to be handled with care. It’s easy for an engineer without specialist UPS knowledge to unwittingly throw a wrong switch or carry out procedures in the wrong order.


Never forget that human error is the most common – and often avoidable – cause of downtime.


That’s why it’s key to clarify whether the service engineer is fully-trained for the specifi c manufacturer and even model of UPS you’re running.


And remember that it’s not unusual for sub-contractors to be substituted in on the day at the last minute if the original engineer is unexpectedly unavailable. It’s always worth double-checking their competence to work on your invaluable UPS.


What does a PMV entail? A PMV kicks off with an in-depth visual inspection of the UPS to see if there are any obvious signs of wear and tear. The engineer will also look at the batteries for signs of damage, corrosion, leaking or swelling. This is


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