OpenBuildings™ Designer Help

Building Mechanical Category Variables

Lists user configuration variables that generally apply to the Building Mechanical discipline.

Variable Short Name Description
BMECH_AHUBUILDER_CATALOGS_PATH Mechanical AHU Builder - Location of AHU Builder Library files Sets the default path for the AHU Libraries in Organizationdestination (besides the default library - BentleyAHULibrary supplied with the application).
BMECH_AHUBUILDER_TEMPLATE_FILEPATH Mechanical AHU Builder - Location of AHU Builder Library node template file Sets the path and file name (AHUBuilder_Sample.xml) for the file node set in generating AHU Library.
BMECH_AHUMODULE_DATA_FILE Mechanical AHU Builder - Location of AHU Builder Module data file Sets the path and file name for the AHU Builder Module data file.
BMECH_ANALYZE_LIB Analysis flow rules library Sets the path and file name for the analysis flow velocity rules data.
BMECH_AUTOFITTINGOPTIONS_ FILE Mechanical HVAC Autofitting - Location of Autofittingoptions options data Sets the path and file name (AutoFittingOptions.xml) in the workset dataset that specifies components from the DataGroup catalog used in various autofitting situations.
Note:
When unavailable, the XML file set by BMECHDIR_AUTOFITTING_OPTIONS is replicated in this location.
BMECH_DUCT_SYMBOLS_LIBNAME Duct Symbol cell library Sets the .cel file for HVAC symbols.
BMECH_ENDTYPE_CONSTRUCTION End Type construct Sets an element graphics class type value as msdElementClassConstruction for Endconnections
  • When set to m- (default), a male connection is created.
  • When set to Fe-, a female connection is created.
  • When set to fl-, a flange connection is created.
Tip: Multiple end-connections can be set by separating the string by semicolon delimiters (for instance m-;fl-;)
BMECH_FAMILY_DIFFUSER_DEFAULT Diffusers default family of parts Set the family of parts used by the HVAC Diffusers.
BMECH_FAMILY_FIREFIGHTING_DEFAULT Fire Fighting component's default family of parts Sets the default family of parts used by the Fire Fighting components.
BMECH_FAMILY_GRILLE_DEFAULT Grilles default family of parts Set the family of parts used by the HVAC Grilles.
BMECH_FAMILY_HVACEQUIPMENT_DEFAULT HVAC Equipment default family of parts Sets the family of parts used by the HVAC Equipment.
BMECH_FAMILY_PLUMBING_DEFAULT Plumbing Equipment default family of parts Sets the family of parts used by the Plumbing discipline.
BMECH_FAMILY_PLUMBINGFIXTURE_DEFAULT Fixture default family of parts Sets the family of parts used by Plumbing Fixtures.
BMECH_FLOWRATE_UNIT Duct Sizer default flow rate unit Sets the default value for flow rate unit for the Duct Sizer tool. Valid Unit values for metric system (m3/s, m3/hr, l/s) for Imperial System (ft3/s, ft3/min, ft3/min).
BMECH_IGNORESYMBOLS_BYSHAPE Ignore drawing symbols by shape Controls whether to ignore the symbols for a component in a DV drawing based upon its shape. The component will be resymbolized using 3d graphics. Accepted values are: 1, 2, or 3 for rectangular, round, or flat oval, respectively. Multiple values can be specified by using a semi-colon to separate the values.
BMECH_INSULATION_LIB Insulation materials library Sets the path and file name for the insulation library used to populate the pick lists in the Analyze System tool's insulation functionality.
BMECH_MULTIPIPE_LIMIT Maximun number of pipes in a multipipe Sets the maximum amount of pipes allowed in the Multipipe Settings dialog.
BMECH_OVERRIDESETTING_FILE A settings file that stores Mechanical override to customize drawing output Sets the path and file name for the Mechanical Override Settings.
BMECH_PIPE_TURNDOWN_SIZE Set the pipe turndown size Specifies the pipe turndown mode to fixed with the specified size. Value must be in MU:SU format.
BMECH_PLUMBING_SYMBOLS_LIBNAME Plumbing symbol cell library Sets the .cel file for Plumbing symbol.
BMECH_STANDARDSIZEPATH A settings file that stores user defined standard lengths for frequently placed components Sets the path and file name for the standard lengths settings file which is used to store user defined standard length values for components.
BMECH_UNITS_SHOW_MESSAGE Unit Error message Displays error message if unit defined by _BMECH_UNITS configuration variable and design file unit does not match. Default is 1 ("yes").
BMECH_WATCH_OVERRIDE_FILE Mechanical Override Setting Allows dynamically update the drawings according to the overrides set.
  • When set to 1 (default), when you edit the overrides file, it will update the drawing dynamically.
BMECHDIR_ARCHITECTURE_LIB Architecture component Catalogs Specifies the path for the library in DataGroup catalogs for architecture components.
BMECHDIR_AUTOFITTING_OPTIONS Mechanical HVAC Autofitting preferences Sets the path for autofitting options data that specify components from the Datagroup Catalog to be used in various autofitting situations.
BMECHDIR_DIFFUSER_LIB Diffuser component catalogs Specifies the path for the datagroupcatalogs library for diffuser components.
BMECHDIR_EQUIPMENT_LIB Equipment catalogs Specifies the path for the DataGroup catalogs library for equipment components.
BMECHDIR_FITTINGS_LIB HVAC fittings Catalogs Specifies the path for the DataGroup catalogs library for fittings.
BMECHDIR_GRILLS_LIB HVAC Grilles Catalogs Specifies the path for the datagroupcatalogs library for grilles components.
BMECHDIR_INLINEDEVICE_LIB Inline devices catalogs Specifies the path for the datagroupcatalogs library for HVAC inline devices.
BMECHDIR_PLUMBING_LIB Plumbing fittings Catalogs Specifies the path for the DataGroup catalogs library for plumbing components.
HVAC_ANALYSISLEVELNAME Level setting for Analyze Route tool Sets level name for the center line elements generated by the Analyze Route tool.
HAVC_AHUCELLDIR Air Handling Units Cell Directory Sets the path and file name for the air handler cell file.
HVAC_AIRFLOW_STATUS_AUTO Air flow symbol configuration setting Specifies the behavior of the Mechanical discipline HVAC discipline's air flow symbols which are generated in the drawing composition process.
  • When set to 1 (default), the airflow symbol based is on a Part definition.
  • When set to 0, a default air flow symbol for all components is applied.
HVAC_CATALOGPATH The Mechanical Building Designer catalogs directory Specifies the directory location of Mechanical discipline XML files containing component generation instructions and manufacturer catalogs.
HVAC_CUT_BORDER_LINESTYLE Visible air flow symbol line style Sets line style for the HVAC discipline's visible air flow symbols that are displayed when components are viewed on end or sectioned in drawings.
HVAC_CUT_HIDDEN_LINESTYLE Hidden air flow symbol line style Sets line style for the HVAC discipline's hidden air flow symbols that are displayed when components are viewed on end in drawings.
HVAC_DIFFUSERPATH Catalog file which defines diffuser datagroup properties Sets the path and file name for the diffuser DataGroup properties definition file.
HVAC_DISCONNECTSLEVELNAME Level setting for Analyze Route tool Sets level name for the elements generated by the Analyze Route tool when a disconnect is detected. The default value is HVAC_DISCONNECTS.
HVAC_DUCTSYMBOLSLIB Mechanical Building Designer cell libraries Specifies the directory location of cell libraries used in Mechanical discipline.
HVAC_EXCEL_DIALOG Mechanical Building Designer component Excel workbooks Specifies the active dataset directory location of Excel files used for importing or exporting values for the Mechanical discipline components' DataGroup properties.
Note: The Excel worksheet values are extracted from the default DataGroup catalog property values.
HVAC_FAMILY_DUCT_DEFAULT Default family of parts associated with the Mechanical Building Designer HVAC discipline Sets default part family name to be made active whenever an HVAC component is selected for placement and the active part is null.
HVAC_FAMILY_INSULATION_DEFAULT Default family of parts associated with the Mechanical Building Designer HVAC discipline's component insulation Sets default part family name for the Mechanical discipline HVAC discipline's component insulation.
HVAC_FITTINGPATH Catalog file which defines fitting datagroup properties Sets the path and file name for the fittings DataGroup properties definition file.
HVAC_FIXTURESCELLDIR Fixture cell Sets the path and file name for the fixture cell files.
HVAC_GRILLEPATH Catalog file which defines fitting datagroup properties Sets the path and file name for the grille DataGroup properties definition file.
HVAC_PLUMBINGEQUIPMENTSCELLDIR Plumbing equipment cell library Sets the .cel file path for Plumbing equipment.
HVAC_SYMBOLSCELLDIR HVAC Symbols cell library Sets the .cel file path for HVAC symbols.
HVACDIR_DIALOG HVAC Dialog Customization files Specifies the directory location of the Mechanical discipline customization files pertaining to dialogs and option menus.
HVACFILE_DRAWINGRULES HVAC Drawing Rules Specifies the directory location and file name for the file that holds the Mechanical discipline drawing rule settings.
Note: A drawing rules setting file exists for each Mechanical discipline dataset.
TFDIR_PREFS HVAC preference file Specifies the location of the HVAC preference file.
MS_HELPPATH Help Path Specifies the location of the HVAC help files.

Uncategorized Building Mechanical Configurations

List of user configuration variables that generally apply to the Building Mechanical discipline which are listed in the Configuration dialog's All (Alphabetical) category.

Variable Description
BMECH_FAMILY_PLUMBINGEQUIPMENT_DEFAULT Set the default family of parts used by the Plumbing Equipment.

Unlisted Building Mechanical configurations

Lists user configuration variables that generally apply to all Building disciplines which do not appear in the Configuration dialog.

Variable Description
BMECH_MOVE_MAXDYNAMIC Specifies the maximum number of components dynamically displayed when using the Building Mechanical discipline's Move tool.
  • When undefined, there is no restriction. All components being moved are dynamically displayed.
  • When set to an integer, the integer value is the maximum number of components dynamically displayed.
BMECH_VULCAN_OUT Sets the path and file name for the Vulcan export out file. By default, the file name is VULCAN_IMPORT.txt. The default location is the active workset's Data folder.