What could be a consequence of leak testing a low-pressure refrigeration system with nitrogen in excess of 10 psig?

Leak testing a low-pressure refrigeration system with nitrogen in excess of 10 psig can lead to a rupture disc failure because systems designed for low-pressure operation typically have components that can only withstand certain pressure levels. If the nitrogen pressure exceeds these limits, particularly through testing protocols, it can put excessive stress on the system’s rupture discs. These discs are safety devices intended to protect the system by releasing pressure if it becomes too high. Applying excessive pressure during leak testing can cause these discs to rupture, which compromises the system’s safety and integrity.

In a low-pressure system, maintaining the appropriate testing pressure is crucial to prevent failures of components that are not designed to handle high pressures. Thus, careful adherence to manufacturer recommendations and safety standards is essential during leak testing to avoid damaging critical components and ensure system safety.