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the internal dielectric strength has failed
It is specified for Copper-Fin II models CB497-747 (boilers) and CW497-747 (water heaters)
maintaining the same electrical ratings of 120/208/240 Vac
This symptom typically indicates a failure in the flame sensing circuit
which ranges from 3°F to 20°F
Fenwal 35-705700-005 Control Els PW 17895 the internal dielectric strength hasThe Fenwal 35 705700 005 is a 120VAC Direct Spark Ignition (DSI) control module designed for precise gas valve sequence management in commercial and industrial heating applications. This microprocessor based gas ignition control features a 10 second Trial for Ignition (TFI) period and is configured for a single ignition attempt (1Try) without a prepurge (NoPP) cycle. Engineered for intermittent duty gas burners, this unit facilitates reliable flame
US$ 249.50
US$ 347.50