For steam services (up to 15 psi)

The kit typically includes the thermostatic cage assembly

making it suitable for discreet wall mounting or return air duct installation

While some universal parts physically fit

Mechanical Reliability: Simple

Lennox 99W91 Mounting Plate 319847-401 For steam services (up toWhen you're dealing with belt drive blower assemblies in commercial units, a precise motor alignment is non negotiable for system longevity. The Lennox 99W91 Mounting Plate is a genuine HVAC replacement part designed to provide a stable, vibration resistant foundation for blower motor installation. Engineered specifically as a motor mounting plate for heavy duty applications, this OEM Lennox part measures approximately 14. 63 x 16. 62 inches, though