This diagram shows an instantaneous water heater system with a hot water storage tank. The expansion tank is typically installed on the cold water inlet but can be installed on the hot water supply after the water heater. A building recirculation line is an option to assist in preheating water flowing to the storage tank.. Learn how to wire and connect your hot water tank with this detailed schematic. Make sure your installation is safe and efficient.
![[DIAGRAM] Wiring Diagram For A Hot Water Tank](https://usermanual.wiki/Bradfordwhite/PipingDiagramCommercialGasTwoWaterHeatersWithThreeStorageTanksAndReturnCirculation.998812884-User-Guide-Page-1.png "[DIAGRAM] Wiring Diagram For A Hot Water Tank")
![[DIAGRAM] Wiring Diagram For Hot Water Tank](https://inspectapedia.com/plumbing/Potable-Hot-Water-Expansion-Tank-Installation-Wattss.jpg "[DIAGRAM] Wiring Diagram For Hot Water Tank")
:max_bytes(150000):strip_icc()/installing-an-expansion-tank-2719066-hero-375405ad9eaa426a880e3ed978ba00f5.jpg "How to Install a Water Heater Expansion Tank")
![[DIAGRAM] Hot Water Heater Plumbing Diagram](https://usermanual.wiki/Bradfordwhite/PipingDiagramResidentialElectricUprightSingleWaterHeaterWithTopConnections.1927894499-User-Guide-Page-1.png "[DIAGRAM] Hot Water Heater Plumbing Diagram")
The water supply and power (electricity or gas) must be shut off during the installation of the valves and expansion tank. Follow the instructions found on the water heater and in the owner's manual.. Hot Water Recirculation Tappings -- Lochinvar storage tanks will have two (2) tappings on the tank to provide recirculation piping between the tank and a hot water source.