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  1. 19-10-2011, 12:40 PM #1
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    MikeHolm
    MikeHolm is offline VIP Poster
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    Re: Reverse Cycle Air Conditioning

    Quote Originally Posted by mikeref View Post
    So it seems we have some "For" and "against" here. Think i'll go with Trash101 at this time. Seems reasonable in my current state of mind thankyou..
    Current state meaning RUM?
  2. 19-10-2011, 12:49 PM #2
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    MikeHolm
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    Re: Reverse Cycle Air Conditioning

    "Circulator" type or any other type of pump that takes liquid from the suction at the centre and discharges from a spot on the edge of the impeller will not work well backwards (Grundfos, Wilo, any inline pump). The impeller and the input output geometry must be symmetrical (or nearly so) and scrolls for sure are not symmetrical.

    Positive displacement such as vane or lobe pumps can do it.
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