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This HVAC zone sensor communicates analog temperature data directly to the controller's analog input
5 Cv rating is optimized for 3/4" piping to maintain proper pressure drop and minimize noise in residential and commercial zones
Versatile Switching: DPDT (Double Pole Double Throw) contacts provide flexibility for complex wiring schemes
Broad Media Compatibility: Validated for use with refrigerants
Fenwal 35-665036-111 Control 30067439-890 This HVAC zone sensor communicatesThe 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