The normal pressure of an inverter AC, like any other air conditioning system, depends on several factors, including the refrigerant being used, the ambient temperature, and the operating conditions. The pressure in an AC system is typically measured in pounds per square inch (psi) or kilopascals (kPa).
The most common refrigerants used in modern inverter ACs are R-410A (Puron) and R-32. Here are the approximate normal operating pressures for these refrigerants in an inverter AC:
R-410A (Puron):
- Low-side pressure (suction line): around 100 to 130 psi (690 to 896 kPa)
- High-side pressure (discharge line): around 300 to 400 psi (2068 to 2758 kPa)
R-32:
- Low-side pressure (suction line): around 70 to 100 psi (483 to 689 kPa)
- High-side pressure (discharge line): around 250 to 350 psi (1724 to 2413 kPa)
It's important to note that these are approximate values and can vary based on the specific model, make, and size of the inverter AC unit. Additionally, the pressures can fluctuate depending on the ambient temperature and the cooling load on the AC.
The pressure readings are crucial for professional HVAC technicians when servicing an inverter AC system, as they can provide valuable information about the system's health and efficiency. However, handling refrigerants and making adjustments to an AC system's pressure should only be done by trained and certified technicians to ensure safety and proper operation of the unit.