Vacuuming in AC removes moisture, air, and non-condensable gases from the system before refrigerant charging. This ensures efficient cooling and prevents internal corrosion or ice formation. A vacuum pump is connected to the service port, creating negative pressure to clean the system completely for optimal performance. #ACVacuum #AirConditionerService #HVACTech #CoolingSystem #VacuumPump #ACRepairing #RefrigerationBasics #ACTechnician #SkillTraining #ACMaintenance #careskillsacademy #acrepairin
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