The Armstrong Air 4SHP13LE is a single-stage heat pump with efficiency ratings of up to 14 SEER and 7.7 HSPF. A bi-directional filter drier provides system protection, while a grommet-mounted compressor, heavy-duty compressor blanket and discharge muffler help reduce sound levels to as low as 73 dBA. The coil is constructed of enhanced aluminum fins and rifled copper tubing for increased efficiency, while controls, gauge ports and service valves are easily accessible for quick installation and service. A galvanized steel louvered cabinet with a baked polyester paint finish provides protection from the elements, and a raised base pan with ports prevents corrosion by allowing water drainage.
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