HVAC VACUUM PUMP
HVAC ROTARY VANE VACUUM PUMP is a device specifically designed for HVAC (heating, ventilation, and air conditioning) systems. Its core function is to remove air, moisture, and impurities from the system, creating a dry, leak-free vacuum environment for refrigerant filling.
Core Functions:
- Dehumidification and Drying: Residual moisture in the system can react with the refrigerant to form acidic substances, corroding pipes and damaging the compressor. A vacuum pump can remove moisture to extremely low levels (usually measured as "vacuum"), preventing malfunctions.
- Air Removal: Air mixed into the system reduces cooling/heating efficiency and can also cause "airlocks" in the pipes, affecting refrigerant circulation. A vacuum pump can completely remove air.
Auxiliary Leak Detection: After vacuuming, if the system vacuum level remains stable for an extended period, it can be preliminarily determined that there are no leaks; if the vacuum level drops, it indicates the presence of a leak.
HVAC Rotary Vane Vacuum Pump Key Technical Parameters
Vacuum Level: The core indicator for measuring vacuum pumping capability, typically measured in Pascals (Pa) or micrometers of mercury (μmHg). HVAC systems require a vacuum level of at least 500 μmHg, while precision systems require below 100 μmHg.
Pumping Rate: The volume of gas that can be pumped out per unit time, measured in cubic meters per hour (m³/h) or liters per minute (L/min). The appropriate rate must be selected based on system size; for example, 3-5 m³/h is suitable for residential air conditioning, while commercial central air conditioning requires 10 m³/h or higher.
Oil Type: Vacuum pumps require dedicated vacuum pump oil for lubrication and sealing. Only oils compatible with the equipment (e.g., "HVAC-specific vacuum pump oil") should be used; machine oil or other lubricants should not be mixed.
