These pens are simple to swap out in the field

When the thermocouple voltage drops due to pilot outage

How do I test if the FUS2534 is defective

Self-Powered Operation: Internal solar cells eliminate battery failures and complex wiring in remote tank or pipe locations

What causes a 170 degree limit switch to trip

Fenwal 35-705501-003 Control R-410A These pens are simple toThe Fenwal 35 705501 003 is a dedicated 120VAC Direct Spark Ignition (DSI) control designed for precise gas burner management in commercial and industrial HVACR applications. This microprocessor based ignition module features a 7 second Trial for Ignition (TFI) period and is engineered for single try configurations. As a non prepurge (NoPP) unit, it initiates the spark sequence immediately upon the call for heat, making it an essential component for