Fenwal 35-605957-015 Ignition Module 321702-401 this 1/2-inch NPT component is

this 1/2-inch NPT component is engineered for direct spark ignition (DSI) and hot surface ignition (HSI) systems

often indicated by specific flash codes like the common 7-flash error

the MARS 71 Relay is non-positional

reducing downtime during seasonal maintenance

OEM wiring harnesses provide the exact pin configurations and wire gauges required by the manufacturer

Fenwal 35-605957-015 Ignition Module 321702-401 this 1/2-inch NPT component isThe Fenwal 35 605957 015 Ignition Module is a 24 VAC microprocessor based Direct Spark Ignition (DSI) control engineered for precision performance in demanding HVACR environments. This Fenwal ignition control provides comprehensive burner management by continuously analyzing system parameters to ensure safe, repeatable combustion cycles. Designed to handle both natural gas and propane applications, the module operates efficiently within a broad