What is the normal pressure for a car's air conditioning system?
2 Answers
The normal pressure for a car's air conditioning system is between 20bar and 30bar. Below is more information about air conditioning pressure: 1. The pressure should neither be too low nor too high. 2. The car's air conditioning system requires maintenance, including regular cleaning and periodic refrigerant recharge. 3. If refrigerant is not replenished for an extended period, the cooling efficiency of the car's air conditioning will deteriorate, and the cooling speed will slow down. 4. During operation, the compressor continuously compresses the refrigerant, which then expands and absorbs heat in the evaporator. The refrigerant cools the evaporator, which in turn cools the air blown by the blower fan, allowing the car's air conditioning vents to emit cold air.
As someone who frequently deals with car air conditioning systems, I recommend the normal pressure range to be between 25-45 psi for the low side and around 200-250 psi for the high side. Pressure is affected by temperature: on hot days, the high pressure may rise above 250 psi, while it tends to be lower on cold days. When measuring, connect the pressure gauge to the high and low-pressure ports and take the readings as accurate. If the pressure is too low, it may indicate insufficient refrigerant or a leak; if it's too high, there could be a blockage or air in the system. Regular checks are crucial to avoid compressor damage or increased energy consumption. I share this experience to remind everyone not to overlook the details—maintaining efficient cooling not only ensures comfort but also saves fuel and enhances safety. A maintenance check every six months is ideal.
