10" WC to ensure the system only fires under optimal venting conditions

this valve ensures system compatibility and consistent ignition cycles

The HSI ignitor operates at 1

Johnson Controls F92B-1 Air Volume Control

Does the 61M35 replace part number 78L32

Fenwal 35-605601-203 Control Freon 10" WC to ensure theThe Fenwal 35 605601 203 is a professional grade 24V direct spark ignition (DSI) control module engineered for high performance gas fired heating systems. This microprocessor based HVAC ignition control provides precise timing sequences, featuring a 30 second pre purge to clear the combustion chamber and a 7 second trial for ignition (TFI) to ensure reliable burner start up. Designed with a durable Noryl gray fire retardant enclosure, this DSI module