Once the temperature drops to the reset range of 150°F

snap-in mounting solution

replacing both 8402-020 and 8402-020BX with no mounting modifications required

Can this relay be mounted in any orientation

Thermal Resistance: Premium porcelain insulator prevents voltage leakage even under extreme operating temperatures within the burner housing

Conbraco 17-402-01 Relief Valve Once the temperature drops toThe Conbraco 17 402 01 Relief Valve is a high capacity hot water pressure relief valve engineered specifically for thermal expansion protection in ASME Section IV heating boilers and water storage systems. Built with a heavy duty bronze body and corrosion resistant stainless steel springs, this 3 4" MNPT x 3 4" FNPT valve is factory set at 75 PSI to ensure system integrity. With a thermal capacity of 505,000 BTU hr, it provides an essential safety