.BuildingSystems.Fluid.HeatPumps.ModularReversible.Controls.Safety.OperationalEnvelope .BuildingSystems.Fluid.HeatPumps.ModularReversible.Controls.Safety.OperationalEnvelopeModel to check if the operating conditions of a heat pump are inside the given boundaries. If not, the heat pump or chiller will switch off.
Read the documentation of BuildingSystems.Fluid.HeatPumps.ModularReversible.Controls.Safety.BaseClasses.PartialOperationalEnvelope for more information.