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Automatic transfer switches must also be operated monthly. The monthly test. consists of electrically operating the transfer switch from the standard position to. the alternate position and then a return to the standard position.
These include: â¢ Leak testing systems once a year if the charge is between 3 and 30 kg and twice. a year for systems with more than 30 kg. â¢ Logging refrigerant usage and leak tests / repairs. â¢ Being qualified to handle refrigerant. There is more detailed information on legal requirements throughout this guide.