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30~40hp water cooled packaged air-conditioner convert to A.H.U

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07-18-09, 08:42 AM

chow8933

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30~40hp water cooled packaged air-conditioner convert to A.H.U

Help! How to find out the A.H.U (chilled water ) actual tonnage & CFM for the above. Thank you.

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07-18-09, 10:21 AM

daddyjohn

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quick & dirty- if r-22 figure one horsepower/ton for the compressor motor or look on the head of the expansion valve[s] for a number. 400 cfm/ton if DX evaporator. Realize that is very ballpark, not precise. What is the brand and model # of the existing unit?

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