Since a recovery unit will remove more fluorocarbon refrigerant from a than any other practicable method, their use should be regraded as the norm and the exception.
Contractors, engineers and equipment owners should ensure that recovery units are adequately available for use , in anticipation that they will be needed.
Their availability, sophistication, variation and demand are increasing and is resulting in their being more widely used.
As with vacuum pumps, recovery unit, will work much more efficiently if connection hoses are kept as short and as large in diameter as possible. A8/3" diameter hose should be the minimum size used and half inch is preferable.
However, not being able to get a recovery unit close to a system is not an acceptable excuse for not using one. If long hoses have to used all that will happen is recovery will take longer.
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