Dual-duct AHU

Description

The simulated system consists of a dual-duct air handling unit (DD-AHU) and four connected variable air volume (VAV) terminal units each serving a single zone on one floor of a building. The DD-AHU has two parallel air ducts, one with a hot water heating coil and fan for delivering warm air to the zones, and the other with a chilled water cooling coil and fan for delivering cool air to the zones. Individual VAV terminal units use dampers to control the volumes of warm and cool air that are mixed to satisfy the temperature setpoint of a particular zone. The data set was created using HVACSIM+ developed by the US National Institute of Standards and Technology and comprises a collection of comma separated value (CSV) files. Each CSV file represents either a fault-free case or a faulty case representing a single fault type at a specific severity level. A separate data inventory file documents key information for the data set, including system type and diagram, control sequence, description of data points, and the faulty and fault-free scenarios represented in each CSV file.