When Does the Air Conditioner Need Refrigerant Recharging?

[McCamille]

The air conditioner does not have a fixed refrigerant recharge cycle. You can determine whether it needs recharging by observing the sight glass on the receiver-drier. When the air conditioner is operating normally, if bubbles continue to appear in the sight glass, it indicates a lack of refrigerant and requires replenishment. If there are a large number of foam bubbles in the sight glass, it means the refrigerant is severely insufficient, necessitating leak detection, repair of the leaking components, and recharging with the appropriate amount of refrigerant. Principle of automotive air conditioner Freon: 1. Freon has an average lifespan of hundreds of years in the atmosphere, so most of the emissions remain in the atmosphere, with the majority staying in the troposphere and a small portion rising into the stratosphere. Freon molecules in the troposphere are very stable and hardly undergo any chemical reactions. 2. When they rise into the stratosphere, they decompose under intense ultraviolet radiation, and Freon molecules containing chlorine dissociate into chlorine atoms (called 'free radicals'), which then engage in a chain reaction with ozone.