Recovery & RecyclingQuestion 212 of 240

Before recovering refrigerant from an unfamiliar system, a technician should first:

a.Open the compressor for inspection
b.Identify the refrigerant
c.Top off the recovery cylinder
d.Add nitrogen to the system

Explanation

Identifying the refrigerant with a refrigerant identifier before recovery prevents pulling an unknown or contaminated charge into clean equipment or a partly filled cylinder. Mixing refrigerants can ruin a whole cylinder and the recovery machine. Identification protects both the equipment and the value of the recovered refrigerant.

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