ActronAir Fan Twin Deck 9x7 1HP ECM ELGEE replaces the discontinued 2520-330 assembly with an upgraded 1HP motor rating, providing increased airflow capability for AIRES and Advance R32 indoor units in the ELGEE galvanised glass-polypropylene twin-deck configuration. The upgrade from 2520-330 increases motor power from 1/2HP to 1HP -- confirm the indoor PCB current capacity supports the increased motor load before installation. Isolate power at mains before replacement -- live work on fan assemblies is dangerous and must only be performed by a qualified technician.