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After the refrigerant has been recovered, if nitrogen is used to flush debris out of the system, the nitrogen may be vented.
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If the system pressure is _____ psig, the system has a leak, and all the refrigerant has leaked out.
The EPA requirement for repairing leaks on small appliances states that _______.
Leaks should be repaired whenever possible.
Checking for air or non-condensables can be done by checking which of the following inside the recovery tank?
The vacuum pump designed for evacuation and dehydration can _______
never be used as a recovery device
To minimize the refrigerant loss during connection and disconnection of hoses, all equipment must be fitted with _______
Low loss fittings
Which of the following should not be recovered?
Do not mix the refrigerants in the recovery tank
Evacuate the small appliance to ______ of mercury vacuum.
Portable refillable refrigerant containers must meet which of the following standards to be used to ship the recovered refrigerants?
Depart of Transportation
All refrigerant recovery equipment should be checked for oil level and refrigerant leaks on a(n) ______ basis.
________ stub is attached to the filter drier in a refrigeration system.
The EPA requires leak repair for small appliances.
The sale of CFC’s and HCFC’s is restricted to _______
EPA defines a small appliance as a product that is fully manufactured, charged, and hermetically sealed in a factory with ______ or less of refrigerant.
Refrigerants such as Methyl Formate, Methyl Chloride, or Sulfur Dioxide should be recovered with current EPA recovery devices.