Maximize the performance and safety of your gas-fired heating units with the Aaon P79990. As a genuine OEM Direct Spark Ignition Module, this component is engineered to provide precise control over the combustion process in Aaon rooftop units and other industrial gas heating systems. Operating at 24VAC, the Aaon P79990 ignition control features a sophisticated 1016 Series platform designed by UT Electronic Controls. This DSI module eliminates the need for a standing pilot, reducing energy waste and maintenance overhead while ensuring a high-voltage spark for reliable burner initiation. Built for the rigors of commercial HVACR applications, the P79990 replacement part offers flame sensing and automatic gas shutoff for superior safety integration. It functions effectively across a wide operating temperature range from -40°F to +176°F, making it suitable for diverse environments. This unit serves as a direct cross-reference for the Robertshaw RAM-2MC17-02 and is essential for maintaining the sequences of pre-purge, ignition trial, and inter-purge. For contractors looking for a drop-in Aaon heater part, the P79990 delivers the exact technical specifications required for regulatory compliance and system longevity. Key Benefits: OEM Compatibility: Specifically designed for Aaon HVAC systems, ensuring seamless direct spark ignition and flame sensing performance. Advanced Timing Control: Precisely manages pre-purge (5 sec), ignition trial (10 sec), and inter-purge (45 sec) sequences for optimal efficiency. Enhanced Safety: Integrated automatic gas valve shutoff logic prevents hazardous gas accumulation in the event of a failed ignition. Field Reliability: Robust construction handles 60Hz 24V power at 250mA, providing consistent spark generation in high-demand rooftop environments. Common Questions: Will the P79990 replace my older Robertshaw ignition control? Yes, this module is the authorized OEM replacement for the Robertshaw RAM-2MC17-02 model used in many Aaon legacy units. Does this module require a separate flame sensor? The P79990 utilizes local flame sensing through the direct spark assembly, though it should be verified against your specific wiring harness for remote sensing applications. What are the power requirements for installation? This control operates on standard 24V HVAC control power (24VAC, 60Hz) with a maximum current draw of 250mA. 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.
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