Swapping to this 3/16 inch gas regulator orifice allows for specific BTU capacity adjustments

this factory-spec motor ensures the system operates within its original ASHRAE design parameters

the NEMA 4X rating indicates the valve is protected against windblown dust

Is this a 3-blade or 4-blade design

Whether you are performing a preventative maintenance swap or a critical field repair

Trane BLW1139 Inducer Blower Els PW 17895 Swapping to this 3/16 inchThe Trane BLW1139 Inducer Blower is a critical single stage draft inducer engineered for high efficiency furnace combustion systems. As the direct OEM replacement for BLW0861, this motor assembly ensures proper venting of flue gases by creating a steady vacuum within the heat exchanger. This Trane centrifugal blower is designed to meet strict furnace draft inducer specifications, maintaining the pressure switch closure required for the ignition