The Lennox 16U10 Collector Box (also known by part number 619598-10) is a critical OEM replacement cold end header box kit designed for high-efficiency Lennox condensing furnaces

Does this valve require an external pressure tap for testing

Always use genuine Reznor components

Rated for 240Vac 60Hz

Watts 0274596 Valve R-407A The Lennox 16U10 Collector BoxThe Watts 0274596 is a 3 4 inch Model 174A 70 ASME rated pressure relief valve designed specifically for protection against excessive pressure in water heating and storage applications. Engineered for closed loop systems, this hot water boiler relief valve features a high capacity BTU hr rating to ensure rapid pressure discharge when system limits are exceeded. The valve is factory set at 70 PSI, providing a reliable safety threshold for high pressure