The MEGA-TEC is designed for applications requiring a large amount of sensible cooling capacity and limited wall space. Dual refrigeration circuits and a total of three stages with the lowest stage less than 35% of the total capcity provide cooling for an area with a varying heat load. MEGA-TEC provies an AHRI certified 10+ EER solution that meets D.O.E. requirements and the efficiency ratings of state and national codes. Industrial grade indoor and outdoor fans provide years of trouble-free service. An optional economizer provides full-flow outdoor air intake and room exhaust based on outside temperature or enthalphy.