While the HUS1207 is a standard Trane OEM part

allowing full mechanical force to be applied directly to the damper shaft

Look for excessive ice buildup on the outdoor coil

It is designed to be paired with VA-7000 series electric or V-3000 series pneumatic actuators based on your control requirements

The 36-inch capillary tube with a 1/4" flare nut pressure connector provides versatility for remote mounting

Lennox 81W45 Blower R-407A While the HUS1207 is aUpgrade or repair your Lennox heating system with the Lennox 81W45 combustion air blower assembly. This OEM Lennox replacement part, also identified by model LB 94724AC, is a critical component for maintaining proper draft and air fuel mixtures in high efficiency furnaces. It features a high performance 1 20 HP PSC motor capable of 2800 3200 RPM, operating on a standard 115V single phase circuit. This assembly is a direct replacement for Lennox draft