Manual for Refrigeration Servicing Technicians - UNEP - Division of ...

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Refrigerant Management
b) Local methods - where a technician uses gas detection
equipment to manually pinpoint the location of the leak. This is
the usual method used during servicing.
c) Automated performance monitoring systems – which indicate
that a leak exists by alerting operators to changes in equipment
performance. This can indicate that there is a deficit of
refrigerant within the system.
It is important to recognise the
difference between “refrigerant
detection” and “leak detection”:
refrigerant detection is the
identification of the presence of
refrigerant, and leak detection is the
identification of the location where
refrigerant is, or could be, emitted
from. Thus, refrigerant detection is
normally required for detecting leaks,
but it requires the technician to
manually search for the leak source.
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