What role does nitrogen play in the triple evacuation process?

In the triple evacuation process, nitrogen is utilized to raise pressure and help absorb moisture from the system. When nitrogen is introduced into the refrigeration system, it effectively raises the internal pressure, which aids in sweeping out any moisture present in the lines or components.

Moisture can cause significant issues in refrigeration systems, including corrosion and reduced efficiency. By using nitrogen to increase the pressure, technicians create conditions favorable for moisture removal before the system is evacuated or replaced. This practice is crucial in ensuring the system operates correctly once it's recharged with refrigerant and minimizes any potential damage.

The other choices focus on different roles that might not align with the specific function of nitrogen in this process. For instance, while nitrogen can be a non-condensable gas, it is not a refrigerant itself. Similarly, creating a vacuum and recovering refrigerants directly are processes that do not directly involve nitrogen's primary role in moisture absorption during triple evacuation.