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fDesc[0] = "Carrier’s AHUBuilder® software makes selecting and optimizing the 39M air handler easy. AHUBuilder is for all of the 39-Series Air Handlers, including the Racan 39R indoor and outdoor units, 39M indoor and outdoor, and 39L product lines. Carrier’s AHUBuilder® has:For the 39R product line, new sizes 52, 64, 96 and 120 have been added. For both the new 39R sizes (see item #2) and the existing sizes 72, 85, 95 and 110 the Airway Lengths have changed.";

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