SET018AGD40S0VS S= R-454B E= PREMIER SERIES T= VERTICAL TOP SUPPLY/LEFT RETURN 018= 18 MBH A= CURRENT REVISION G= 208/230-1-60 D= CONTROL STANDARD DXM2.5 4= COMMERCIAL STANDARD RANGE, ULTRA QUIET, 1" RAIL O= STANDARD H.E. NO OPTIONS S= SS DRAIN PAN/NON COATED AIR COIL 0= STANDARD NO HWG V= CONSTANT VOLUME EC MOTOR S= STANDARD CLIMATE MASTER COMMERCIAL