Ouyucool dual-stage vacuum pump.

Air conditioning or refrigeration during installation or repair. This involves removing any trapped air and moisture inside the system. Moisture in the system can react with the refrigerant to form acids, which can corrode internal components and lead to system failure. By creating a deep vacuum, the pump effectively removes these potential contaminants from the system. The process begins by connecting the vacuum pump to the service port of the system to extract air and vapor. This is critical because even small amounts of moisture can freeze and obstruct refrigerant flow, impairing system efficiency. The vacuum pump operates until a specific vacuum level is achieved, indicating that most unwanted substances have been removed and the system is ready for refrigerant charging.