Understanding Humidity in New Air Conditioners: An Expert's View on Vacuum Evacuation

In a recent video, a Chilean HVAC professional addressed a common misconception regarding humidity in new air conditioning units, emphasizing the critical role of proper vacuum evacuation. The expert explained that the presence of humidity in an AC system is not a subjective matter but requires precise, objective measurement. According to the professional, humidity levels must be accurately determined using a specialized instrument known as a vacuum gauge, with measurements expressed in microns. He clarified that this meticulous evacuation process is essential primarily due to the specific type of oil used in the air conditioning equipment, rather than the refrigerant itself. This technical procedure is a cornerstone of good refrigeration practices, ensuring the optimal performance and longevity of the unit. The expert highlighted that neglecting this crucial step can lead to significant operational issues, underscoring the importance of adhering to established technical standards in HVAC installations.