.Buildings.Fluid.HydronicConfigurations.PassiveNetworks.Examples.SingleMixing .Buildings.Fluid.HydronicConfigurations.PassiveNetworks.Examples.SingleMixingThis model represents a change-over system where the configuration Buildings.Fluid.HydronicConfigurations.PassiveNetworks.SingleMixing serves as the interface between a variable flow primary circuit at constant supply temperature and two consumer circuits: the first one is a constant flow circuit, the second one is a variable flow circuit. For each circuit, the secondary supply temperature is reset with an open loop, representing for instance a reset logic based on the outdoor air temperature. The pump model for the second circuit is an ideal Δp-controlled model, its input being computed to mimic the tracking of a pressure differential at the boundaries of the terminal unit.