Do I Need to Release Refrigerant When Replacing the Car Air Conditioning Pressure Switch?

[VonLucy]

Replacing the car air conditioning pressure switch requires releasing the refrigerant. Below are the functions of car air conditioning: 1. Temperature Regulation: This is the primary function of car air conditioning. In summer, the cooling system generates cold air to lower the temperature inside the cabin; in winter, except for large commercial vehicles that use independent combustion heaters for warmth, other vehicles mostly utilize the residual heat from the engine for heating. 2. Humidity Regulation: Humidity significantly affects the thermal comfort of passengers inside the car. The humidity inside the cabin should generally be maintained between 30% and 70%. Standard car air conditioning systems do not have the capability to regulate cabin humidity; this can only be achieved through ventilation systems or the advanced integrated heating and cooling air conditioners found in luxury vehicles.