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When troubleshooting a furnace not igniting or a boiler system lockout
Durable Construction: Features self-aligning ball bearings and drain holes on both ends to prevent moisture buildup in the enclosure
NPT Threading: Standard 1/2" female pipe threads ensure a secure
This switch is typically used as a pneumatic-electric interface to energize electric heat coils or fan motors in VAV boxes when a specific pneumatic branch pressure is reached
Marathon K381 Motor 30067439-890 When troubleshooting a furnace notThe Marathon K381 is a high performance 1 2 HP three phase motor engineered for heavy duty HVACR applications, specifically within commercial fan and blower systems. This 56 frame blower motor operates at a synchronous 1725 RPM, delivering consistent torque for both belt drive fan motor and direct drive configurations. Designed with an open drip proof (ODP) enclosure, it ensures optimal air handler motor cooling while protecting internal components