ActronAir Fan Twin Deck 10x10 S (2x3/4HP) ECM ELGEE H-Steel uses two matched 3/4HP ECM motors on a 10x10 ELGEE twin-deck frame for large AIRES and Advance R32 indoor units, where dual-motor operation provides balanced airflow distribution and improved part-load efficiency compared to a single 2HP motor. The 2x3/4HP configuration produces the same total output as the 2HP variant but with lower per-motor current draw and better energy efficiency at the reduced-load conditions that dominate residential operation. Isolate power at mains before replacement -- live work on fan assemblies is dangerous and must only be performed by a qualified technician.