I have a 2011 model year Quincy QT-54 single phase 5HP 220v vertical tank model running on a 20 amp circuit without issue. My use case driving the purchase was to run an automotive HVLP spray gun and plasma cutter both of which made it run near continuously. A 60 gal tank at 175 psi will run brad nailers for ages without running again. Runs "quiet" compared to similar looking box store compressors with a slightly smoother lower pitch running at 1310 rpm and I have it mounted on rubber isolation pads with a section of flexible hose between the tank and distribution manifold . Air spec is 15.7 cfm at 100PSI or 15.2cfm at 175 for reference. Mine is inside and in a dry climate....if it was difficult to access an auto drain would certainly be a recommended upgrade. Single phase was my choice (US Baldor motor) preserving my limited 3 phase converter capacity for other machines running concurrently. The area I found most irritating was locating pressure regulators designed for 175 psi....quite a few retailers list max 145psi rated units alongside compressors putting out more.?
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Mike B
