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the 669772 is a complete assembly featuring the sensing bulb and capillary line required to monitor suction line temperatures and drive the diaphragm assembly
Always match the OEM temperature rating
the Open Air Over (OAO) enclosure ensures maximum heat dissipation during continuous duty
Precise Pressure Regulation: Factory-calibrated for 4 inch water column LP gas requirements to ensure optimal burner efficiency
Lochinvar & A.O. Smith 100163258 Bypass Assembly 320720-756 the 669772 is a completeThe Lochinvar & A. O. Smith 100163258 Bypass Assembly is a critical OEM component engineered for precision flow regulation in high performance hydronic systems. Designed specifically for EnergyRite Residential Pool Heaters (models ERN ERL 152 through 402, Non ASME), this bypass valve kit ensures optimal heat exchanger protection by maintaining the correct balance between bypass and through flow water. As a direct replacement for the obsolete Lochinvar
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