Lennox 17D75 Motor 326058-758 The 5/32 inch orifice is

The 5/32 inch orifice is precision-calibrated for optimal discharge at 125 PSI

and water heaters requiring tight venting system control

and PDP350 models

eliminating the field-drilling or wiring modifications often required with universal aftermarket alternatives

allowing the humidifier to adjust its output based on the exact gap between the sensed relative humidity and your desired set-point

Lennox 17D75 Motor 326058-758 The 5/32 inch orifice isThe Lennox 17D75 is a high efficiency ECM blower motor designed for precise airflow control in residential and light commercial HVAC units. Operating at 208 230V and carrying a 1HP capacity, this variable speed motor utilizes advanced programmed logic to maintain constant CFM against varying static pressures. Primarily used in Lennox furnaces and air handlers, the 17D75 offers superior electrical commutation over standard PSC motors, significantly