the Reznor 102533 is precision-machined to align perfectly with factory mounting points

Standard Compatibility: The 1/4" NPT connection integrates easily with standard industrial fittings and HVAC pressure sensors

Proper installation is vital for maintaining the secondary air requirements and preventing soot accumulation within the pilot assembly

threaded interface for 1/4 inch HVAC fittings

Schneider Electric (Barber Colman) R820-PCB-A01 Input Board Els PW 17895 the Reznor 102533 is precision-machinedThe Schneider Electric R820 PCB A01 is a critical replacement 24Vac electronic PCB input board engineered for both single phase and three phase HVACR systems. Designed to maintain precise control logic within older Barber Colman architectures, this HVAC control board facilitates seamless communication between input sensors and heavy duty contactors. It serves as the verified R820 PCB A01 direct replacement for legacy part numbers 021 0474 and KEL021