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How does a HRW (Heat recovery wheel unit) functions. Can any one explain with a picture or block diagram. Is HRW is as same as TFA unit?
Mr. Google did it in 0.17sec.
http://www.google.co.uk/search?sourceid=navclient-menuext&ie=UTF-8&q=Heat+recovery+wheel
I appologise for not taking the initiative. Any how thanks for your efforts.