.Buildings.Fluid.HydronicConfigurations.BaseClasses.SingleMixing

Information

Variable primary

This is a typical configuration for constant flow secondary circuits that have a design supply temperature identical to the primary circuit. The control valve should be sized with a pressure drop at least equal to the maximum of Δp₁ and 3e3 Pa. Its authority is β = Δp_A-AB / (Δp_A-AB + Δp₁).

In most cases the bypass balancing valve is not needed. However, it may be needed to counter negative back pressure created by other served circuits.

Parameterization

By default the secondary pump is parameterized with m2_flow_nominal and dp2_nominal + dpBal2_nominal + max({val.dpValve_nominal, val.dp3Valve_nominal}) + dpBal3_nominal at maximum speed.