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standard for the M12 interface on these actuators
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certified under ASME Section IV
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OEM Precision: Genuine Aprilaire component ensures perfect fit and reliable performance with existing systems
Viessmann 7868810 Pressure Switch R-410A standard for the M12 interfaceThe Viessmann 7868810 Air Pressure Switch is an essential safety component engineered for precision monitoring of combustion air and flue gas flow within high efficiency heating systems. This differential pressure switch integrates a factory calibrated 131A cable assembly, ensuring seamless communication with the burner control unit. By detecting minute changes in static or differential pressure, the 7868810 ensures that the inducer fan is providing