Electronic Leak Detector Method

Electronic leak detectors (Figure SP-1-1) can typically detect leak rates of about 1/2 ounce per year. Normally, the leak detector sensing device is placed next to each component in the system and slowly moved (about one inch per second) above and below areas suspected of leaking. When a refrigerant leak is detected, the leak detector typically gives off an audible alarm, turns on a bright flashing light, or both. For best results, operate the leak detector according to the manufacturer’s instructions. If possible, minimize drafts by shutting off fans and other devices that cause air movement.

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