Slant Fin 412-705-040 Damper Assembly 30067439-890 pressure switch stuck open

pressure switch stuck open

this SPST (Single Pole Single Throw) component serves as a critical safety limit

5 Amp DC power supply provides the steady voltage regulation necessary to maintain calibration accuracy across your control loop

Contractor-Ready Design: Standard wiring leads and bolt patterns facilitate rapid installations

this 586 series heavy duty contactor is a standard-issue component for HVAC heating systems

Slant Fin 412-705-040 Damper Assembly 30067439-890 pressure switch stuck openThe Slant Fin 412 705 040 is a heavy duty 5 inch automatic vent damper assembly engineered specifically for high efficiency hydronic heating systems. Designed as a direct replacement component, this motorized flue damper prevents standby heat loss by sealing the vent pipe when the burner is not firing, significantly improving the AFUE rating of the boiler. This assembly features a robust internal synchronous motor and built in safety interlock