a first manifold means having a central large cylindrical flow tube and a distributor means operably connected to said thermal exchange means at one edge so said flow tube is normal to and disposed tangentially to {HEAD ~ the longitudinal axes} of {TAIL ~ said channels} and arranged to fluidly communicate said channels with said flow tube; and 
of
a first manifold means having a central large cylindrical flow tube and a distributor means operably connected to said thermal exchange means at one edge so said flow tube is normal to and disposed tangentially to { HEAD ~ the longitudinal axes } of { TAIL ~ said channels } and arranged to fluidly communicate said channels with said flow tube ; and
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