Aaon R77330 Board

The 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 monitor both supply and return air sensors from a single 120V power source. Its rugged construction is built to withstand the demanding conditions of industrial air handlers and rooftop units, ensuring consistent fire safety monitoring and system protection.

• Multi-Sensor Support: Features 2:1 capability to power up to two D4S sensors, optimizing coverage for supply and return air monitoring.
• Universal Power Compatibility: Specifically designed for 120V HVAC applications, ensuring high-voltage stability for smoke detection circuits.
• OEM Precision: Genuine Aaon replacement part ensures exact fitment and electrical compatibility, preventing common communication errors with unit controllers.
• Industrial Durability: Tested for high-performance operation in manufacturing plants, warehouses, and healthcare facilities.

Common Questions

Is the R77330 compatible with older System Sensor models?
The D4P120B power board is engineered for the InnovairFlex series. It is not backward compatible with older 4-wire detectors; always verify your sensor model before installation.

Can I mount this power board remotely from the sensor?
Yes, the Aaon R77330 allows for remote mounting in accessible locations, which is ideal when duct-mounted sensors are located in restricted spaces.

How many sensors can one D4P120B board control?
This board handles up to two D4S sensor components simultaneously, providing a cost-effective solution for comprehensive duct smoke detection.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

This item is not eligible for free shipping.