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Key Benefits Direct OEM Replacement: Engineered as the precise replacement for part number 800173F
Is this switch for the burner or the fan
it monitors the burner area for escaping flames or "rollout" caused by heat exchanger failure
What is the difference between the 4074EDC and 4074EDC/U
KMC Controls VTD-9422 Diaphragm Key Benefits Direct OEM Replacement:The KMC Controls VTD 9422 is a critical replacement diaphragm specifically engineered for 2 inch pneumatic actuators. This genuine OEM component is designed to restore the seal and peak operational efficiency of damper actuators and valve assemblies within pneumatic HVAC systems. Constructed from high grade, flexible rubber building materials, the VTD 9422 diaphragm provides the necessary resilience to handle repeated cycling and pressure fluctuations