The Water component defines the properties of water as a thermal fluid.
Tip: In the model workspace, place this component at the same level as the thermal-fluid components or subsystem to which you want to assign properties. For example, if you place this component at the top level of the model, the thermal-fluid properties will apply to all of the thermal-fluid components and subsystems in your model. If you place this component within a subsystem, the properties defined in the component will apply to the thermal-fluid components in that subsystem only and all nested subsystems.