OpenBuildings™ Designer Help

Device Hookup

Used to automatically connect disconnected components using combinations of fittings and rigid or flex components. Tool options provide additional detail for connection geometry.
Accessed from:


  • Ribbon: Building System Design > Mechanical > Mechanical Systems > Route Assist > Device Hookup
SettingDescription
Type Sets the connection components to rigid or flexible.
  • Rigid - All solid components are used in hookup unless allowable flexible option is set.
  • Flexible - Identifies both connection shapes to validate one of the two is round, if so, then it allows flexible option on any shape by insertion of transition ,either Rect to Round / Flat Oval to Round.
Flex Length Keyed in value represents the maximum length of flex in the hookup run. Enabled for Flexible type.
Item As defined by the Type choice, contains all the rigid or flexible connection instances to use in the hookup.
Angle Sets the elbow angle in the hookup run to one of the standard angles; 30, 45, 60 or 90 degree. User defined angle is attempted first to align with connection end point. If the selected angle doesn't work due to geometry placement then user can cycle through other angle options and hit enter to select hookup.
Invert Path Enabled to connect to a different side of the component. For instance, connect to the bottom instead of the side. Toggles through various connection points on main ducts.
Group Enabled when more than one terminal devices (diffusers or sprinklers) are selected, to make a group for the selected components. After the group is created it dynamically starts showing the path.
  • For a selection set - grouped items, only freeform hookup path works which will allow you to move the main branch line and position it within the main duct range and beyond (if open-ended).
  • For a selection set - without grouped items, after selecting the main duct/pipe it directly makes the connection with the main duct/pipe.
  • Selection set of a rectangular duct with different connection shape on terminal devices, are by default set to rectangular branch with appropriate shaped takeoffs to complete connection to the terminal devices.
  • If the different connection shape only consists of flat oval & round, then flat oval should take the priority as branch shape and an appropriate takeoff to complete the round shaped terminal.
Note: For a selection set (group/without group), Invert Path and Calculated Path should always be disabled and connection angle should always be 90 Degree.
Freeform Path It allows to dynamically manipulate path of connection.
Calculated Path When enabled, it presents possible Calculated Path options in single line representation.
Solution Switch between the Solution option to get the closest route.
Note: It takes the next possible angle that will make a valid connection.
Key-in: BMECH PLACE hookup