Trane HUS3805 Housing 320788-703 Superior Thermal Rating: Class F

Superior Thermal Rating: Class F insulation allows the coil to withstand higher internal temperatures without degradation

as direct spark ignition systems are highly sensitive to proper grounding for flame rectification

ensuring a 1:1 fit for technicians servicing Lennox packaged units and heat pumps

while the fan side should read between 7

Trane HUS3805 Housing 320788-703 Superior Thermal Rating: Class FThe Trane HUS3805 Housing is a specialized right side blower housing engineered specifically for residential air handlers and packaged units, including the 2WCC, 4WCC, and 4TCC series. Manufactured from high grade, molded glass fiber polyester, this natural colored enclosure provides a rigid, non conductive, and corrosion resistant barrier for the centrifugal fan assembly. As an OEM Trane part, it ensures precise physical tolerances (approximately 7.