Watts 0121429 Valve 320720-756 Thermal Efficiency: Features a high-efficiency

Thermal Efficiency: Features a high-efficiency 4-cell design for maximum heat absorption and distribution

How do I change the output voltage scale

this unit is designed to work efficiently with both HSI and direct spark systems that utilize remote flame sensing

The rugged construction and internal sensing architecture ensure stability across high-flow demands

Watts 0121429 Valve 320720-756 Thermal Efficiency: Features a high-efficiencyThe Watts 0121429 (Model LFLL40XL) is a heavy duty, 3 4 inch temperature and pressure relief valve designed specifically for commercial hot water heaters and supply tanks. Engineered with an extended shank, this valve is the industry standard for installations involving high density insulation, eliminating the need for additional extension nipples. The lead free cast copper silicon alloy construction ensures compliance with rigorous NSF ANSI 61