THE HONEYWELL SV9520H8513 1/2″ NPT Inlet X 1/2″ NPT Outlet 3.5″ W.C. SMART Valve Control. Regulator Setting 15 Sec. Prepurge.The SV9520 SmartValve™ System Controls by Honeywell such as the SV9520H8513 combine gas flow control and electronic direct main burner ignition sequencing functions into a single unit. The ignition source is 120V hot surface igniter lighting the main burner flame. Provides all gas ignition safety functions by controlling gas flow, ignition source, and a 120 Vac combustion air blower. The control also monitors the appliance airflow proving switch circuit and limit string to assure proper appliance operation. The SmartValve™ System Controls provide prepurge, postpurge and timed trial for ignition with multiple ignition trials and auto reset from lockout. Diagnostic LED indicates system status.
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