Specifications include, but are not limited to: Standard Construction Features: HPA Standard Construction Features FRAMEWORK: Heavy gauge laser cut and die formed galvanized steel frame integrally isolated from the fan housing with rubber isolators. HOUSING: Heavy gauge galvanized panels containing 2" of sound absorbing insulation with integral lifting points and punched flanges for fan array assembly. Motor lubrication lines will be extended to the outside of the housing panels on all motors with re-greasable bearings. WHEEL: Welded, aluminum 12- blade airfoil centrifugal. Selected Options & Accessories: NEMA Premium Efficient Motor - meets NEMA Table 12-12 Motor VFD Rated Control - Remote Touch Pad - 1 Per Array Motor - Vari-Green EC Motor Motor with Shaft Grounding Motor with Class F or Greater Insulation Direct Mount Isolators, Isolator-Rubber Mount, 0.25 Inch Rotation CW Qty - 6, Rotation CCW Qty - 0 Outlet Guard Housing Blank-Off Panel (One) Unit Warranty: 2 Yrs (1 Yr Ext)