ACV Burner control (control box) 5476G046

The ACV 5476G046 is a burner control (control box) for ACV E-Tech P series boilers. It manages the ignition sequence, enforces safety times, and controls pre-purge, ignition, fuel admission, and flame proving. It reads signals from pressure switches and flame detectors, and drives the ignition transformer, gas valve or oil solenoid, and fan. This unit is also used in electric and hybrid boilers to control heating circuits, temperature, and safety mechanisms.

When selecting a replacement for a burner control of this class, the exact series and type designation must be matched. Key parameters include supply voltage, safety time, pre-purge time, and flame detection method. The electrical base or plug pattern also determines compatibility. A control is normally not interchangeable across series even within the same brand; a mismatched safety time creates a safety hazard. For electronic control boards (PCB) used in modern wall-hung boilers, the unit must be matched to the specific boiler model. Always verify the original part number and series before ordering.