Using a different horsepower or speed rating can disrupt the pressure switch calibration and lead to system lockout or heat exchanger damage

the HKA-15C is the official direct replacement for the older HKR-15C model

Key Benefits Ensures accurate head pressure control in ambient temperatures down to -20°F

By maintaining a permanent water seal

making it a standard choice for contractors focusing on HVACR system maintenance and high-pressure fluid control applications

Reznor 197065 Gas Valve 326058-758 Using a different horsepower orThe Reznor 197065 Gas Valve is a technical grade, 2 stage propane gas valve engineered specifically for high output Reznor unit heaters. This 24v LP gas valve operates as a critical fuel regulation component, managing precise manifold pressure to ensure stable combustion stages in large scale heating applications. Designed with 3 4 inch FNPT inlet and outlet connections, the 197065 is the direct OEM replacement for Reznor UDAP, UDAS, UBX, and UDX