Air Flow In a Duct Tag

[RobDraw]

Is it possible to tag the air flow of a duct riser in a plan view?

I've got a duct tag that is working as expected but it won't pick up the air flow of a riser in plan view. It gets it on section and horizontal ducts on the same system and in the same plan view.

(This is the only place where we put air flows for ducts and it's the only place it doesn't work.)

[Secttor]

Hey @RobDraw

Removing the duct that's over it, tag it and reconnect shoud work, isn't it? 

It's not as professional as expected but..except doing as above or moving it to be accessed (and after back to original position) I don't see now an alternative.

[RobDraw]

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@Secttor wrote:

Hey @RobDraw

Removing the duct that's over it, tag it and reconnect shoud work, isn't it? 

It's not as professional as expected but..except doing as above or moving it to be accessed (and after back to original position) I don't see now an alternative.

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What? We are talking about a riser (vertical) duct. There is nothing over it, except for itself.

The tag on the riser is working for everything except for the air flow. It's not the model or the tag. It is repeatable in an empty project with a different tag family. I tried a similar situation in a section view. The tag works as expected. There is something about floor plan views that is interfering with the parameter being read.

Here's the kicker. We were able to get it work by making a new formula parameter that equals the flow parameter. Yeah, the same parameter that doesn't get read from the riser.

[Secttor]

I knew what you mean with the riser but now it's more clear regarding your worries scenario. 

[M1k3y2014]

Interesting. I hadn't tested this until now and I have the same problem:

I wondered if it could be related to Revit reading the data from the entire length of the riser, somehow. (and then as there are different flows from the outlets, Revit doesn't know which value to choose)

I tested splitting the riser and then I got the value here:

[pawel.romaniuk]

Hello @RobDraw

Hello @M1k3y2014

It is like you said:

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M1k3y2014 schrieb:

I wondered if it could be related to Revit reading the data from the entire length of the riser, somehow. (and then as there are different flows from the outlets, Revit doesn't know which value to choose)

I tested splitting the riser and then I got the value here:

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Using Tees in vertical ducts allow "read" flow parameters. 

 Please hit the Accept as Solution button if my post resolves you issue

[RobDraw]

No, your solution does not solve my issue.

[pawel.romaniuk]

Hello @RobDraw

What do you think about posting this issue on Revit Idee Station ?  At this time Revit does not know which value should be taken from tapped duct on floor plan. In 3D view this tags are working properly.

[RobDraw]

But it does know. We've gotten it to work by making a new formula parameter that equals the flow. It appears to be a bug.

[pawel.romaniuk]

Let's try to improve it...

Make Air Flow parameter readable in Tag for vertical ducts

Wrong annotation tag for vertical ducts on floor plan in Revit
https://knowledge.autodesk.com/support/revit-products/learn-explore/caas/sfdcarticles/sfdcarticles/W...