Fenwal 35-665904-225 Ignition Control 318518-761 Professionals should refer to the

Professionals should refer to the original heater wiring diagram to ensure the safety limit is integrated correctly into the control string

4 scim restrictor must be installed in the supply line

setpoint adjustments

the MOT19014 is the designated direct replacement motor for MOT1979

a separate 8030 series AC coil must be sourced

Fenwal 35-665904-225 Ignition Control 318518-761 Professionals should refer to theThe Fenwal 35 665904 225 Auto Ignition Control is a microprocessor based 24 VAC Hot Surface Ignition (HSI) module engineered for precise burner sequence management in gas fired appliances. This multi try ignition control features a 30 second pre purge and a 10 second trial for ignition (TFI), ensuring optimal combustion conditions before gas valve actuation. Built for versatile field applications, it supports 120 240 VAC field selectable line voltage