Sizes 006 (1/2 ton, 1.76 k W) through 060 (5 tons, 17.6 k W) R-410A refrigerant Exceeds ASHRAE 90.1 efficiencies Galvanized steel construction Epoxy powder painted galvanized steel drain pan Sound absorbing glass fiber insulation Unique double isolation compressor mounting via a vibration isolating rubber grommets for quiet operation Insulated divider and separate compressor/air handler compartments Copeland scroll compressors (rotary for size 018 and below) TXV metering device Microprocessor controls standard Field convertible discharge air arrangement for horizontal units PSC three-speed fan motor Internally trapped condensate drain line (vertical units only) Unit Performance Sentinel performance monitoring system Eight Safeties Standard Extended range (20 to 120F, -6.7 to 48.9C) capable