This refrigeration system brazing process audit guides site teams through best practice before, during, and after brazing. It covers nitrogen purging to create an oxygen free environment, sufficient OFN supply, approved regulator type, filler rod silver content minimum 5 percent, flashback arresters, and required PPE. Capture installer details and verify qualifications to BRA Level 3 or City and Guilds as applicable, including retraining and retest rules. Record gas selection, flux use, nozzle type and size, and any notes. Complete sign off to confirm brazing and purging procedures followed in line with BRA guidance on jointing copper pipework for refrigeration systems.
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