McDonnell & Miller 339800 Arm Assembly Els PW 17895 Enhanced Stability: The integrated ring

Enhanced Stability: The integrated ring cup provides a secure seat for the motor hub

It establishes a 24V control signal when the draft inducer motor successfully generates sufficient negative pressure

Professional installation ensures that the high-amperage contacts operate within their rated duty cycle for peak performance

Quiet Operation: High-quality core laminations reduce electrical noise and resonance in commercial environments

Universal Refrigerant Compatibility: Designed for use with CFC

McDonnell & Miller 339800 Arm Assembly Els PW 17895 Enhanced Stability: The integrated ringThe McDonnell & Miller 339800 is a precision engineered SA25 5 Arm Assembly specifically designed for the 25A Series make up water feeders. As a veteran technician knows, maintaining the mechanical linkage between the float and the valve assembly is critical for ensuring accurate water level regulation in residential and commercial boiler systems. This replacement float arm serves as a direct OEM component for Series 25 A controls, restoring the