this unit integrates a P400BD-1 differential pressure switch and a 120-second factory set time delay to protect mechanical components during low-pressure events

this unit is a direct replacement that minimizes downtime and maintains the factory-established efficiency of compatible Reznor heaters

replacing the flange gasket is best practice to ensure a gas-tight seal on the combustion chamber

High pressure ratings (600 psi body

which typically aligns with previous KMC/Barber-Colman hardware specifications of this class

Lennox 27W58 Fan Blade Freon this unit integrates a P400BD-1The Lennox 27W58 Fan Blade is a precision engineered OEM replacement component designed for high performance condenser units. Featuring a 22 inch diameter and a 3 blade swept wing configuration, this assembly is optimized for high volume airflow and thermal dissipation. The 1 2 inch bore ensures a secure friction fit on standard motor shafts, while the 28 degree pitch is calibrated to maximize CFM output without overloading the motor. Constructed for