1. To identify a leakage, certified personnel shall carry out a visual and manual check of the equipment and analyse one or more of the following parameters:
(a)
pressure;
(b)
temperature;
(c)
compressor current;
(d)
liquid levels;
(e)
recharge volume.
2. Any presumption of fluorinated greenhouse gas leakage shall be followed by an examination for leakage using a direct method as specified in Article 6.
3. One or more of the following situations shall constitute a presumption of leakage:
(a)
a fixed leakage detection system indicates leakage;
(b)
the equipment produces abnormal noises or vibration or ice formation or insufficient cooling capacity;
(c)
indications of corrosion, oil leaks and component or material damage at possible leakage points;
(d)
indications of leakage from sight glasses or level indicators or other visual aids;
(e)
indications of damage in safety switches, pressure switches, gauges and sensor connections;
(f)
deviations from normal operational conditions indicated by the parameters analysed, including readings from real time electronic systems;
(g)
other signs indicating refrigerant charge loss.