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Creating a Sanitary System Both plumbing fixtures must be assigned to a Sanitary system, but because the flow in a sanitary system depends on gravity, the piping should be sloped. The Generate Layout tools let you specify the layout and the slope for much of the sanitary system. However, some modifications, such as vents and traps, and connections between different building levels must be made manually. Begin by creating the sanitary system. 1.
In the Project Browser, right-click the plan view for your plumbing plan, click Apply View Template, and select Plumbing Plan from the Select View Template dialog.
2.
Clic Click k Anal Analyz yze e tab tab
Syst System em Brow Browse serr pane panell
(Sys (Syste tem m Brows rowse er). r).
The System Browser can also be opened by pressing F9. It will be used to verify that all of the plumbing fixtures are assigned to a system. 3.
Dock the System Browser at the bottom of yo ur screen, right click a column header, and click View Piping. Before creating the system, the plumbing fixtures are listed as the Default Sanitary plumbing system under the Unassigned folder in the System Browser.
4.
In the Project Browser, double-click your plumbing plan view, select all of the plumbing f ixtures for the system.
5.
Clic Click k Modi Modify fy Plum Plumbi bing ng Fixtu Fixture res s tab tab
Crea Create te Syst System ems s pane panell
(Cre (Creat ate e Sani Sanita tary ry Syst System em). ).
The plumbing fixtures have now been assigned to a Sanitary system at the Piping level in the System Browser.
Layout Piping for the Sanitary system 6.
The Generate Layout tools let you define the layout for piping in the sanitary system. Open a 3D view showing the plumbing fixtures, and enter the keyboard shortcut, WT to tile the views.
7.
In the plan view, select one of the plumbing fixtures in the sanitary system.
8.
Click Modify Piping Systems tab
9.
If more than one system has been created for the fixture, in the Select a System dialog, select the new sanitary system, and click OK.
Layout panel
(Generate Layout).
The Generate Layout tab is activated. 10. Select Solutions on the Generate Layout panel, and on the Options Bar, click Settings. 11. In the Pipe Conversion dialog, specify the type of pipe and the offset for the Main and Branch segments of sanitary piping.
Modify: Allows you to modify a layout either by repositioning individual layout lines or b y combining them. You combine layout lines by first selecting the layout line that you want to combine and then by dragging its Elbow/End control until the control snaps to an adjacent layout line. The layout line that was modified is automatically removed and additional layout lines are added to represent a physical connection to the component that is associated with the modified layout line. All co mponents that are associated with modified layout lines maintain their original placement. Combining layout lines allows you to redefine your layout so that it corresponds to your design intent. NoteOnly adjacent layout lines can be combined. However, layout lines that connect to system components cannot be modified because they are necessary to connect the component to the layout.
NoteA layout line can only be moved up to a tee or cross fitting in one action. You can select the line again, and move then move it beyond the tee or cross fitting.
When using Modify, one custom solution is remembered for the current (modified) layout. If you later use Modify to select a different solution, a message is displayed, asking if you want to overwrite your previous solution. Yes overwrites the previous solution. No applies the previous custom solution. To modify a layout, click (Modify) and select a layout line that you want to relocate or combine. You can then use the following controls:
Parallel Movement Control: Lets you move an entire layout line along an axis that is perpendicular to the layout line. Additional lines are automatically added when needed to maintain connections in the system. Note that you cannot use this control to overlap layout segments. You must use the Elbow/End Control.
Junction Controls: —Represents a tee. —Represents a cross. These junction controls let you move a tee or cross connection between a main and branch segment, left or right, up or down. Movement is limited to the end associated with the Junction Control symbol (see note above).
Elbow/End Control: Lets you move the intersection between 2 layout lines or the end of a layout line. This control also allows you to combine layout lines. Additional layout lines are automatically added when needed to maintain connections in the system. Elevation Control: Indicates the current elevation of the line. Click the elevation control and enter a value to adjust the elevation.
Solutions: Allows you to select a Solution Type and proposed solutions on the Options Bar. Each layout solution consists of a main (blue) and branches (green). The following solution types are available: Network: This solution creates a bounding box around the components selected for the plumbing system, then bases up to 6 solutions on a main segment along the center line for the bounding box, with branches at 90 degree angles from the main segment.
Perimeter: This solution creates a bounding box around the components selected for the system, and proposes 5 potential routing solutions. Four solutions are based on 3 of the 4 sides of the bounding box. The fifth solution is based on all 4 sides.
You can specify the Inset value that determines the offset between the bounding box and the components. Intersections: This solution bases the potential routing on a pair of imaginary lines extending from each connector for the components in the system. Perpendicular lines extend from the connectors. Where the lines from the components intersect are potential junctions in the proposed solution. Up to 8 solutions can be proposed along the shortest paths.
You use the arrow buttons (
) to cycle through proposed routing solutions.
Slope: Lets you specify the slope for the entire piping system. The slope is specified as an angle or as the rise for a given pipe run, depending on the Slope Display parameter in the Project Units dialog. Settings: Opens the Pipe Conversion the Main and Branch piping.
Settings dialog where you specify the characteristics for
Inset: Specifies the distance between the bounding box and the components in the system. You can specify a positive or negative value to place the perimeter within or outside of the bounding box, respectively. Note that this option is available only after the Perimeter solution type is selected.
Add: Allows you to add a component that had been previously removed from a layout. The added component is no longer grayed out, and the layout and solutions update. Note that this option is different from Undo (CTRL+Z) because Add allows you to reintroduce elements irrespective of a sequential order.
Remove: Lets you remove a component from a layout. The removed component is grayed out, and the layout and solutions update.
Place Base: Allows you to place a base control in the layout. The base control is necessary in some layouts when you need to establish a flow direction or a flow source to create the layout. You can also use the base control to create smaller “sub-assembly” layouts on a single level or on multiple levels. These layouts are useful when the overall layout is too large or complex to design completely in the Generate Layout tool. To use the base control, place the base co ntrol where the open pipe connection will be located for the layout. You can also place a base control to connect the layout sub-assemblies. If the base is on the same elevation as the open connections, a horizontal pipe will connect to the open sub-assembly connections. If the base control is placed on a different elevation from the open connections, a pipe riser will be created to connect the layouts. NoteAfter you finish (convert) a layout to create the piping, the base control is removed resulting in an open upstream connection.
TipAfter placing the base control, it is recommended that you modify the base control so that it is in the desired location and its connector is or iented properly (see Modify Base below). You can also click Solutions and view an updated layout and solutions that include the base control.
Remove Base: Lets you remove the base control from the current generate layout session.
Modify Base: Allows you to rotate and relocate the base control. The following controls are provided:
Rotate Around Connection Direction: Rotates the base control around the base control connection direction axis (the connection direction is indicated by an arrow in the 3D v iew). Rotate Perpendicular to Connection Direction: Rotates the base control around and perpendicular to the base control connection direction axis (the connection direction is indicated by an arrow in the 3D view). Move Base: Relocates the base control.
Finish Layout: Converts the layout to rigid piping according to your specifications.
Cancel Layout: Discards layout settings and leaves the system unchanged.
12. For this example, the Main and Branch are set for a Pipe Type: PVC, and an Offset of -1' 6" (-450 mm), which places the piping below the level associated with the current level in the plan view. Click OK. 13. On the Options Bar, enter a value for Slope; for this example, 1/8" /12" (32 mm)
14. Accept the default plumbing Solution Type: Network, and click or to cycle through the proposed routing solutions to select the that best fits the plan. For more information about Solution Types, see Generate Layout. 15. If necessary, click Modify, and r eposition pipe segments to avoid obstructions.
16. Click Finish Layout when you are satisfied with the routing of the piping for the system.
The piping is cr eated according to the specifications in the Conversion Settings dialog and on the Options Bar. NoteLocal building codes often require 45 d egree junctions for waste plumbing. See Changing the
Angle for a Fitting Leg to learn how to modify a 90 degree fitting. Create a vent 17. You can create a vent by upgrading a pipe fitting and drawing a vertical segment to serve as the vent. Select the elbow connecting the vertical pipe to the sanitary main pipe from the back of the toilet, and click the plus sign above the elbow to upgrade the fitting to a tee.
18. Select the floor plan view, select the tee fitting, and highlight the connector on the tee. The lower connector is the first connector highlighted.
NoteThe connector symbol may not be visible. Instead you will see a highlighted square. Press Tab once to highlight the upper connector (a slightly larger highlighted square), right-click the connector, and click Draw Pipe.
19. On the Options Bar, enter 8' 0" (250 cm) for Offset, click Apply, and click Modify.
Create the Domestic Cold Water System 1.
Select both plumbing fixtures in the plan view. The
and
buttons are active on the Modify Plumbing Fixtures tab
Create Systems panel, however,
the
button is inactive because there is no hot water connector for the wall-hosted toilet.
2.
Click Modify Plumbing Fixtures tab
Create Systems panel
3.
Click Modify Plumbing F ixtur es tab
Layout panel
.
(Generate Lay out).
The Generate Layout tab is activated. 4.
On the Options Bar, click Settings to open a Pipe Conversion Settings dialog where you specify the offsets, and pipe types for the Main and Branch segments of your piping. For our example, Standard was selected for the type of pipe and the Offset was set to 1' 6" (450 mm) for both the Main and Branch. See Pipe Conversion Settings .
5.
Select a Solution Type. For the example, Perimeter is selected and 9" (20 mm) is specified for Inset.
6.
Click
7.
If necessary, click Modify, and r eposition the pipe segments when a there is no proposed solution that provides the desired layout.
8.
Click Finish Layout when you are satisfied with the routing of the piping for your cold water system.
or
to cycle through the proposed routing solutions, and select one that best fits your plan.
The piping is cr eated for the system piping according to your specifications in the Pipe Conversion Settings dialog.
The toilet and sink have now been assigned to a Domestic Cold Water System at the Piping level in the System Browser. 9.
Click Modify.
