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

High pressure ratings (600 psi body

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

Performance Restoration: Ensures the combustion blower maintains the correct CFM for safe venting and optimal AFUE performance

The 8045-20 is a time-terminated model

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