What is the refrigerant in the air conditioner?
1 Answers
The refrigerant in the air conditioner, also known as the cooling medium, is the working medium in the refrigeration cycle. It utilizes the phase change of the refrigerant to transfer heat, meaning the refrigerant absorbs heat when it vaporizes in the evaporator and releases heat when it condenses in the condenser. Currently, there are over 80 substances that can be used as refrigerants, with the most common being ammonia, Freon, water, and a few hydrocarbons. The steps for adding automotive refrigerant are as follows: 1. After evacuating the system, close the high and low pressure manual valves on the manifold gauge. 2. Connect one end of the middle hose to the refrigerant can injection valve. 3. Fully open the high-pressure side manual valve and invert the refrigerant can. 4. Inject the specified amount of liquid refrigerant from the high-pressure side.