What is the temperature of the car air conditioning high-pressure pipe?
2 Answers
Car air conditioning high-pressure pipe temperature is around 80 degrees, and can reach up to 120 degrees at maximum. Here are the relevant introductions: 1. Under normal circumstances, when the compressor is at 1500-2000rpm, the high pressure is around 1.5-2.0mpa, while the low pressure is around 0.15-0.35mpa; 2. If the ambient temperature around the vehicle is high, the high pressure may reach around 25-2.8mpa, but generally it will not exceed 3.1mpa; otherwise, the pressure protection switch will be triggered. To ensure the safe operation of the air conditioning compressor, most vehicle air conditioning systems are equipped with a pressure protection switch. When the air conditioning system pressure is too high or too low, the air conditioning pressure switch will be triggered and stop the operation of the air conditioning compressor.
I've driven quite a few cars and tinkered with AC systems myself. The temperature of a car's AC high-pressure pipe typically ranges between 60 to 80 degrees Celsius, depending on factors like vehicle speed, ambient temperature, and usage duration. Think about it – the refrigerant comes out of the compressor at high pressure and temperature, only starting to cool down when it reaches the condenser. That's why during summer highway driving, the pipe surface feels extremely hot to touch, easily reaching over 70 degrees, while it might be lower in winter. You need to be careful when it's too hot – a simple touch could cause burns. I keep an infrared thermometer in my car to regularly check temperatures. For instance, if it exceeds 85 degrees, it might indicate a system blockage or refrigerant shortage, requiring professional repair. Regular cleaning of AC filters and condensers helps prevent overheating and maintains stable pipe temperatures, otherwise you'll get poor cooling performance and increased fuel consumption.
