When is it necessary to evacuate a refrigeration system?

Evacuating a refrigeration system is a critical procedure and is required before servicing or after repairs to ensure the system functions optimally. This process involves removing air, moisture, and any refrigerant from the system to create a vacuum. By doing so, technicians prevent impurities from entering the system, which can lead to corrosion, reduced efficiency, and potential system failure.

During servicing or following repairs, it's crucial to make sure that the system is free of contaminants. Evacuation aids in achieving the necessary low-pressure environment, allowing for proper refrigerant charging and ensuring that the system can operate effectively without the risk of damage.

While there are other scenarios in which maintaining the integrity of the refrigeration system is important, such as during installation, after power outages, or during maintenance checks, the core rationale behind evacuating specifically during servicing or repairs focuses on the need to maintain system integrity and performance.