Create duct and pipe color fill legends

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A duct or pipe color field legend can

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improve the way a system's properties are viewed and

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can be more effective for reviewing information than selecting

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specific sections of a network to retrieve values.

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Ensure the current view is set to H VAC floor plans, one Meck duct flow rates.

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In this project, we will make changes to duct and piping networks

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to monitor the effect of those changes.

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We will create views and colorful legends that will provide dynamic feedback

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as values for properties such as flow velocity and size are altered.

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Here,

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we see a display of the flow rates in this supply air system ranging

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from 250 at the air terminals to 1500 cubic feet per minute at the fan

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unit

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information displayed without having to select a section of duct

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and review the properties.

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Each floor plan can display a single color fill legend.

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So we will create a duplicate view from H VAC floor plans one

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mec and rename the view to something appropriate for a new color fill legend

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name the view one mec duct velocity.

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Create a new legend from the color fill panel of the ribbon

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place it to one side of the floor plan,

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then change the color scheme to duct velocity and select.

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Ok.

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The information displayed can be used to assist in making design changes

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where the color fill will update dynamically with alterations to the system

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and highlight any areas of possible concern.

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Currently,

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the flow rate at the air terminals is 250 cubic feet per minute with

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sections of the network running at a velocity of over 1000 ft per minute.

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By reducing the flow rate at the air terminals to 100 and 80 cubic feet per minute.

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The velocity across the system is reduced.

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However, the flow rate may now be too low for the space being served.

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Set the air terminals to 200 cubic feet per minute,

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then begin to increase sections of duct in the network.

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This will have the effect of automatically making changes to

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the color fill and to the values in the legend

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indicating which areas still have a higher than desired velocity

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in larger networks.

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The number of individual values in a legend can make it more

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difficult to establish which color relates to which sections of duct work,

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select the legend and from the ribbon choose edit scheme

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to achieve more of a general overview change the

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display options from buy value to buy range,

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then set the at least value to 800

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due supply

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and OK.

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Use duct colorful legends to validate changes to your design as they're

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made and to highlight areas that do not meet design criteria,

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create another duplicate view of one mec and rename it to one mec pipe flow rates.

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A pipe colorful legend has the same benefits as a

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duct legend and is created in the same way.

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But there are additional options when working with piping networks

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to cater specifically for the size of pipes in use,

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create a pipe color fill legend from the color fill panel of the ribbon,

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accept all of the defaults and place the legend on the screen.

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Select the legend

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and from the ribbon, choose edit scheme

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from the schemes area.

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Duplicate the existing size scheme and name it pipe color fill, flow,

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rename the title to flow rates.

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Then from the color dropdown menu change the option to flow,

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read the message and select, OK.

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For smaller pipe work where it may be difficult to see the colors,

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it may be preferable to have the color fill as

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a contour shown here on the outside of the pipe.

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However, for larger pipe work, it may be OK to have the color fill inside the pipe

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to make changes to the display. Edit the legend scheme again,

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change the highlighter fill width to 1 32nd

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and select apply.

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Note the change in the contoured fill

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to move the fill to the inside of the pipe, change the contour fill value to one inch

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and again select apply

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then OK.

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Finally

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draw a short section of pipe with a diameter of less than one inch

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and see that for pipes smaller than one inch, the color fill reverts to contoured

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as with duct color fill legends.

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Any changes to the pipe network that result in a change to the displayed property

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will result in an update to the color scheme,

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creating duplicate views of floor plans,

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then applying and editing color field legends are shown here provides an

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efficient method of monitoring values as

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you implement design changes to mechanical systems

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effectively highlighting any areas that may need further investigation.