If an ammonia refrigeration system incorporates a vessel on the low side and a compressor is pulling off of or through and your systems holds enough liquid ammonia to overfill the vessel, then your systems needs a high level safety. This safety is critical to be tested correctly. IIAR suggests that all safety cutouts be tested at least annually. Are you high levels being tested correctly and effectively? Today GCAP’s Online Training Resources brings your this free R-717 Video Tip of the Day on testing high level floats.
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