Watts 0383544 Relief Valve 326058-758 Technicians should cross-reference the Lennox

Technicians should cross-reference the Lennox 104798-01 part number with the specific unit serial number to ensure a correct match

Energy Efficiency: Standard 100W draw provides balanced heating without excessive power consumption or oil overheating

Can I use this board to replace a 20123101 timer

While the 42-1 is the primary casting for the 42S series

Durable Construction: Heavy-duty float and bellows assembly engineered to withstand the rigors of low pressure steam environments

Watts 0383544 Relief Valve 326058-758 Technicians should cross-reference the LennoxWhen you are in the field servicing a commercial hydronic system, you need a high capacity boiler pressure relief valve that provides consistent, fail safe performance. The Watts 0383544 is an industrial grade 1 1 2 inch relief valve designed specifically for hot water space heating applications. Engineered with a rugged iron body and a 36 psi fixed set point, this valve delivers a massive discharge capacity of 2,310,000 BTU hr, ensuring it can handle