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EPA regulations require that leak commercial and industrial process refrigeration be repaired when the leak rate exceeds percent of the charge per year.

Why must all valves be opened when an evacuation is performed?

On low pressure chillers, moisture most frequently enters the refrigerant system through;

Water must be circulated through a chiller during refrigerant  evacuation in order to;

When it is essential to take measures to help release trapped refrigerant from the compressor oil during refrigerant recovery;

When installing any type of access fitting onto a sealed system;

Small appliance recovery equipment manufactured after Nov 15, 1993 must be certified to be capable of;

In general, what is one routine maintenance task which must be performed on most refrigerant recycle machines?

If a large leak of refrigerant occurs such as from a filled cylinder in an enclosed area, what action should be taken when no self contained breathing apparatus is available?

Type I Certification is required for;