In standard heating cycles

If you hear the transformer clicking but see no spark at the burner

This S201 series valve typically handles up to 150 PSI for water and 50 PSI for steam applications

System Protection: Effectively manages time-delayed element sequencing to protect against circuit breaker trips during startup

ASCO 8221G25 Solenoid Valve Els PW 29614 In standard heating cyclesThe ASCO 8221G25 is a high performance 2 way normally open solenoid valve specifically engineered for reliable fluid control in commercial and industrial water systems. Featuring a 3 4" NPT connection and a robust brass body, this pilot operated valve is designed with a specialized slow closing mechanism. This internal snubber technology effectively eliminates water hammer, protecting your piping infrastructure from destructive pressure surges without