Aaon R77330 Board 319847-401 ensuring proper alignment within the

ensuring proper alignment within the burner assembly

Efficient Flow Rate: Optimized

Durable Construction: Built with high-grade alloys to resist oxidation and heat-induced degradation in high-temperature combustion chambers

for standard pneumatic instrument controls

000 BTU Williams 14038 series models

Aaon R77330 Board 319847-401 ensuring proper alignment within theThe Aaon R77330 Smoke Detector Power Board, model D4P120B, is a critical OEM replacement component designed for commercial HVAC systems. Engineered for seamless integration with InnovairFlex duct smoke detectors, this 4 wire power board provides the precise voltage and current required for reliable smoke detection in high static environments. As a veteran grade HVACR control board, it supports 2: 1 sensor to board capability, allowing contractors to