Honeywell On-Off Primary Control with Prepurge

Honeywell On-Off Primary Control with Prepurge. Burner control for automatically fired gas, oil, or combination fuel single burner applications, 120vac, intermittent pilot, intermittent main flame establishing period, 4 second or 10 second pilot flame establishing period, selectable interlocks, non-volatile memory, functions include burner sequencing, flame supervision, system status indication, system or self diagnostics and troubleshooting