What is the normal pressure for an automotive Freon gauge?

[VanKira]

For automotive air conditioning refrigerant charging, the low pressure should be between 1.5 to 2.5 kg, and the high pressure should be between 13.5 to 15.5 kg. The following is relevant information about Freon: 1. Introduction: Freon, also known as Fluorine, originates from the English word 'Freon', which is a registered refrigerant trademark of DuPont in the United States. In China, there are differing definitions of Freon, generally referring to the collective term for halogenated derivatives of saturated hydrocarbons (mainly methane, ethane, and propane). According to this definition, Freon can be categorized into four types: CFC, HCFC, HFC, etc. Some scholars define Freon specifically as CFC refrigerant. 2. Main Uses: Freon is widely used as a refrigerant, foaming agent, and cleaning agent, extensively applied in household appliances, foam plastics, daily chemical products, automotive, firefighting equipment, and other fields.