| External damage can cause leaks in the refrigerant circuit. Due to the small amount of refrigerant which may leak, small leaks may be detected, for example, with an electronic leak detector or a leak detection additive which is added to the refrigerant circuit. |
| Electronic leak detectors can detect leakage rates of less than 5 grams loss of refrigerant per year. (For each different refrigerant, an electronic leak detector specifically designed to detect the composition of the refrigerant in question must be used. For example, leak detectors for refrigerant R12 are not suitable to be used for refrigerant R134a, seeing as it contains no chlorine atoms, causing the detector not to react). |
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