Technical Reliability: Features a 2-second on-delay to prevent nuisance trips and a robust construction rated for 1/2 HP and 3/4 HP motor applications

which means it will close the circuit once the system pressure rises above the cut-in threshold

While designed for 22-inch fan systems

The HKR-03 provides high-voltage terminal blocks

Lochinvar & A.O. Smith 100276814 Relief Valve R-410A Technical Reliability: Features a 2-secondThe Lochinvar & A. O. Smith 100276814 Relief Valve is a critical safety component designed for high demand commercial and residential water heating systems. This 1" 150# T&P Relief Valve is engineered to automatically discharge water if internal tank conditions exceed 150 PSI or 210F, preventing catastrophic vessel failure. As a direct replacement for 100167360, this OEM part ensures precise fitment and maintains the original engineering