High Level HVAC Calling Tree (schematic – not all routines are shown)[LINK]

ManageHVAC (in HVACManager)

• ZoneAirUpdate(‘PREDICT’, . . .) (in HVACManager)

estimate the zone heating or cooling demand

• SimHVAC (in HVACManager)

• ManageSetPoints (in SetPointManager)

• SimSelectedEquipment (in HVACManager)

• ManageAirLoops (in SimAirServingZones)

• ManageZoneEquipment (in ZoneEquipmentManager)

• ManageElectricLoadCenters (in ElectricPowerManager)

• ManagePlantLoops (in PlantManager)

• ZoneAirUpdate(‘CORRECT’, . . .) (in HVACManager)

From the amount of heating and cooling actually provided by the HVAC system, calculate the zone temperatures.

Each of the “Manage” routines has a different structure, since the simulation to be performed is different in each case. We will show schematic calling trees for several of the “Manage” routines.