What is the minimum system pressure required for leak testing with an electronic leak detector?

The minimum system pressure required for leak testing with an electronic leak detector is crucial because it ensures that the system operates within a pressure range where any potential leaks can be effectively detected. Setting the pressure too low might not create enough force for the detector to identify small leaks, while excessively high pressures could pose safety risks and damage to the system or the testing equipment.

When using an electronic leak detector, a pressure of 50 psi is generally considered sufficient to identify leaks in most HVAC and refrigeration systems. At this pressure, the system is maintained at a level where the sensitivity of electronic detectors is most effective without reaching a point that could compromise the integrity of the components being tested. This optimized range helps maintain safety standards while ensuring effective troubleshooting and maintenance of the system.