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Reliable Integration: Integrated end switches allow for 100% confirmation of damper position to the zoning system
You must verify that your controller's input configuration supports the 20k ohm resistance curve to ensure accurate temperature translation
Versatile Switching: DPDT (Double Pole Double Throw) contacts provide flexibility for complex wiring schemes
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Fenwal 35-665036-111 Control 30067439-890 Reliable Integration: Integrated end switchesThe Fenwal 35 665036 111 is a microprocessor based Hot Surface Ignition (HSI) Control engineered for precise sequencing in gas fired HVAC systems. Designed as a robust 24 VAC solution, this module integrates an on board inducer blower relay to manage combustion airflow before and after the burner cycle. It features a critical 15 second pre purge (15sPP) to clear the combustion chamber and a 4 second Trial For Ignition (TFI) window, ensuring dependable
