Lochinvar & A.O. Smith 100163257 Bypass Assembly 320788-704 Common Questions Which furnace models

Common Questions Which furnace models use the Williams P154700 Relay

Efficient Serviceability: Standard quick-connect electrical terminals and 1/4-inch thread allow for rapid swaps during emergency service calls

Can this be used for DC applications

This centrifugal fan wheel

Lochinvar & A.O. Smith 100163257 Bypass Assembly 320788-704 Common Questions Which furnace modelsThe Lochinvar & A. O. Smith 100163257 Bypass Assembly is a critical OEM component engineered for precise flow management in high efficiency pool and spa heating systems. Built to withstand the rigorous demands of commercial and residential hydronic applications, this 1 2" NPT bypass kit ensures optimal heat exchanger performance by regulating water velocity and preventing thermal shock. This assembly is a direct replacement part designed specifically