• — Creates a new AHU library.
  Clicking New Library opens the New AHU Library dialog where you can define the name for the AHU library in one of the destinations.

  
  
  
  • Destination — Allows selecting destination folder of the AHU library path.

    Available options are:

    • Organization — The default library path where a series of AHUs that are supplied with the application are stored in a library named BentleyAHULibrary. The organization domain path is selected for AHU Library for AHUs that need to be shared across worksets within the organization.
    • Workspace — Assigns project AHU Library path to active user groups designated by active wokspace.
    • Workset — Designates project AHU Library path where AHU scope is confined to active workset.
    Both destinations can also store user created AHUs.
    Note: The user privilege of accessing the Organization destination to create new library file is managed by the administrator in the configurations settings (and network/file permissions to the user).
  • File Name — Enter the name of new AHU Library to be created in the given destination.
  You can browse in the dialog to set a desired path for storing the AHU libraries, If required.
  Note: This library path (set by BMECH_AHUBUILDER_CATALOGS_PATH) is included in the DG_CATALOGS_PATH configuration variable.
  While creating a new library, the sample.xml template located in the path set by variable BMECH_AHUBUILDER_TEMPLATE_FILEPATH is used to create a file node.
• - Loads an AHU library.
  Clicking Load Library opens the Load AHU Library dialog where you can select an existing AHU library file containing AHU configurations.

  
  
  

  • Destination — Allows selecting destination folder of the AHU library path.

    Available options are:

    • Organization — The default library path where the default BentleyAHULibrary supplied with the application is stored. Select organization domain path for AHUs that need to be shared across worksets (projects) within the organization.
    • Workspace — Assigns project AHU Library path to active user groups designated by active wokspace.
    • Workset — Designates project AHU Library path where AHU scope is kept limited to active workset.
    You can also load user defined AHU Libraries stored in the above destinations.
  • File Name — Select the name of a desired AHU Library available at destination to open in the AHU Explorer.

  Multiple libraries can be loaded in the AHU Explorer.
• — Unloads a selected AHU library. Enabled when a library is selected.

  Clicking Unload Library unloads the selected library from AHU Explorer.

• — Copies data of currently selected AHU in the clipboard.
• — Pastes a copy of selected configuration under current path of AHU Configuration. This is helpful when a desired AHU could be used as a master across multiple libraries.
• — Creates a new AHU configuration.

  Clicking Create AHU while a valid AHU Library (file node) is selected, populates standard modules tree in the Available Modules window in the explorer lists.

• — Saves AHU configurations to active library.
  Clicking Save saves the current configurations in AHU library.

  
  
  

  An AHU needs to have at least a module created and connections added before saving the configuration. The configuration data gets saved in the XML after doing DataGroup refresh and create the AHU as a component to be placed.
• — Places the active AHU in the model.

  Clicking Place AHU places currently configured AHU in the drawing and brings control to the AHU Placement dialog. The last placed AHU will be current and highlighted in the AHU List in the AHU Placement dialog.

  When cursor is moved in the view, the Place Component dialog assists further settings like placement justification, before placing the AHU. Such AHUs will have the properties as designed in the AHU builder.

Right-click menus in AHU Explorer

The right-click menu options are:

• For a selected library path
  • Create AHU — For a selected library path creates a new AHU configuration with default AHU Name.

    The configuration gets added under the library path in the AHU Explorer. At the same time the lower window in the explorer lists a tree of standard modules.

  • Unload Library - Unloads the selected library path from AHU Explorer list.
• For a selected AHU
  • Remove AHU — Removes the highlighted AHU permanently from the AHU library, after confirming.
  • Copy — Copies currently highlighted AHU configuration.
  • Paste — Enabled when Copy command is activated; the paste command adds a "Copy-" of selected configuration under current AHU Configuration.

• AHU Name — Displays default configuration name as NEWAHU. The default name string can be modified by overwriting.
• Width — Displays standard width of the AHU.
• Height — Displays standard height of the AHU.
• Length — Displays the overall length of the AHU assembly.
• Unit — Displays the system unit; "Inches" in case of Imperial.
• Display View — Sets the orientation to view AHU assembly displays in the AHU preview window.
  
  Besides default Iso you can set the display view to other to one of six sides too.

The right-click menus function in the context with the highlighted tree element:

• — Adds a next higher level in the Selected Modules list tree. This is similar to the right-click > Add New Level menu in the Selected Modules list.
• — Removes the selected Level/Module/Connection or Accessory element from the Selected Modules list after confirming a warning message.

  When a level node is selected, the level along with its associated modules (and connections) are removed from the Selected Modules list. When a module or a connection (or accessory) is selected, the selected module along with its associated connections (and accessories) are removed. When a connection or accessory is selected, tit is removed.

  This is similar to the right-click > Remove menu on the Level/Module/Connection or Accessory element in the Selected Modules list.

• Width / Height / Length — Define dimension of the module. The default values can be altered to set required ones.

• Round / Rectangular — Determine the shape of the HVAC module connection.
• Connection Type — Defines the type of connection. The pull down menu lists connection types available in the selected module.
• Accessories — Defines accessory, such as access door, hood etc., as required to the module.
  Note: The heading to this settings group changes dynamically when an accessory is selected. For example, selecting Hood in place of None changes the heading from HVAC Connection Data to Hood Data. This is true in Plumbing Connection Data settings too.
• Location — Determines the side of the module to place the connection. The pull down menu lists all possible side for placing the connection. A side on HVAC module can have one connection each.

  Warning messages prompt if you try to add connections that conflict the design, for example:

  
• Depth — Defines the depth dimension of the connection.
• Diameter — Defines the diameter, for a Round connection.
• Top Offset — Sets offset to the connection from the top of the module to the center of the connection.
• Side Offset — Sets offset to the connection from the side of the module to the center of the connection.
• Add/Modify — Clicking Add adds the connection/accessory to the module.

  The connections added for a given module get listed in the Current AHU Module List tree, grouped separately under HVAC Connections and Plumbing Connections. The subsequent connections are numbered "Connection-1", "Connection-2" etc. Selecting a connection in the module list, turns the Add button to Modify, allowing altering connection details. This is true for accessories too. You can repeat adding multiple connections as required for the module.

• Connection Type — Defines the type of connection. The pull down menu lists connection types available in the selected module.
• Accessories — Defines accessory, such as access door, as required to the module.
• Location - Determines the side of the module to place the connection. The pull down menu lists all possible side for placing the connection. A side on plumbing module can have multiple plumbing connections at different offsets.
• Pipe OD — Sets the outer diameter of the plumbing connection.
• Stub Length — Sets the length of the stub outlet.
• Top Offset — Sets offset to the connection from the top of the module to the center of the connection.
• Side Offset — Sets offset to the connection from the side of the module to the center of the connection.
• Add/Modify — Clicking Add adds the connection/accessory in the module.

  You can repeat adding multiple connections as required for the module. For example, Gas Heating Coil needs defining two connections: (1) Gas In and (2) Gas Out; whereas Steam Heating coil will need three connections: (1) Steam In, (2) Condensate Out and (3) Drain.