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Combustion Precision: Enables variable modulating gas valve operation to optimize fuel-to-air ratios and reduce cycling stress
technicians must refer to the specific furnace's installation guide for high-altitude derating and manifold pressure adjustments
If your system requires a 600 PSI cut-out and 475 PSI cut-in for high-pressure protection or fan cycling
6-inch by 15
Nordyne 903094 Door 318973-401 Combustion Precision: Enables variable modulatingThe Nordyne 903094 Bottom Coil Door is a genuine OEM furnace replacement part engineered specifically for mobile home and residential HVAC configurations. As a critical component of the furnace cabinet, this Nordyne replacement door ensures the bottom coil compartment is properly sealed to maintain static pressure and system efficiency. Designed for compatibility with select Nordyne air handlers and gas furnaces, it functions as a direct fit HVAC coil