The #37 drill size orifice is specifically sized to deliver the correct BTU output based on the manifold pressure of compatible A

the 669553R maintains peak system efficiency by modulating liquid flow into the evaporator

The 60Hz inducer motor is built for continuous duty

The Aaon ASM02227

ensuring consistent airflow and preventing pressure switch faults

Fireye 129-172 Spring Retainer Kit 319825-402 The #37 drill size orificeThe Fireye 129 172 Spring Retainer Kit is a critical mechanical component engineered for the secure mounting and long term stability of flame scanners within industrial burner management systems. This spring retainer is specifically designed for use with the MB series and MBPF flame sense modules, including models MB 600PF, MBPF 100S, and MBPF 200S. Built from high temperature resistant alloy, it maintains structural integrity under the intense