How Often Should a Car's Refrigerant Be Replenished?
1 Answers
Refrigerant in a car should be replenished every five to eight years. Here are some tips for selecting the right refrigerant: 1. Consider environmental requirements: Always choose refrigerants that comply with national environmental regulations. 2. Consider the cooling temperature requirements: Depending on the refrigerant temperature and cooling conditions, select high-temperature (low-pressure), medium-temperature (medium-pressure), or low-temperature (high-pressure) refrigerants. Typically, the standard evaporation temperature of the chosen refrigerant should be at least 10°C lower than the cooling temperature. Other factors to consider include the cooling conditions of the refrigeration system and the operating environment. The operating condensation pressure should not exceed the safe limits specified for the compressor. Since car air conditioning systems can only use outside air as the cooling medium, they are frequently affected by factors such as ambient temperature, wind speed, solar radiation, and heat radiation. These operating conditions necessitate the use of high-temperature (low-pressure) refrigerants, with R12 being the traditional choice. 3. Consider the properties of the refrigerant: Based on the thermodynamic, physical, and chemical properties of the refrigerant, opt for those that are non-toxic, non-explosive, and non-flammable.
