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Thread: Frozen Heat Pump - air flow
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07-05-2010, 10:52 PM #1
Frozen Heat Pump - air flow
Hi there,
I am getting back to the forum since this winter I have faced to a frozen coil of an heat pump - it was the external coil -.
I noticed that this coil had interrupted fins – with several cuts - instead than traditional ones, that are practically plain.
I had following idea: according to my knowledge this fins generate an higher pressure drop than traditional one.
That is, with the same fan, this coil will be invested by a lower air flow.
Lower is the air flow, higher is the possibility of ice formation if the fin temperature is lower than air dew point.
I come to the conclusion that this kind coils – with interrupted fins - may be not suitable - or not effective – in heat pump applications for the reason above.
My argumentation is:
less air flow, easily ice formation, less capacity.
Please, may I ask you your opinion or your experience about this issue ?
Many thanks
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