ASHRAE Tables

[Anonymous]

Where are the ASHRAE tables supposed to be located in the Revit file structure? If I click on a duct fitting and go to properties I can choose Coefficient from table for the Loss Method. However, the space next to ASHRAE Table is blank. When I click on the blank area to select a file, there are none listed.

[Anonymous]

Bringing this back to the top...

[jason.martin]

The tables are located in RevitInstallPath\Ashrae (which by default is C:\Program Files\Revit MEP 200x\Program\Ashrae). It is quite possible that there simply isn't an ASHRAE table that matches the family that you've created so the selection is blank.

jason

[Anonymous]

The fitting in question is just a standard round take-off. How are the families associated with the tables?

[jason.martin]

Right, but as far as I can tell, the ASHRAE tables don't include any information on takeoffs. Here's what's shown in the ASHRAE duct fitting tables:

Round

CD3-6 Elbow, Pleated
CD3-9 Elbow, 5 Gore
CD3-10 Elbow, 7 Gore
CD3-12 Elbow, 3 Gore
CD3-13 Elbow, 3 Gore
CD3-17 Elbow, Mitered
CD6-1 Screen
CD9-1 Damper, Butterfly
CD9-3 Fire Damper, Curtain Type
ED1-1 Duct Mounted in Wall
ED1-3 Bellmouth with Wall
ED2-1 Conical Diffuser, Round to Plenum
ED5-1 Wye, 30 Degree
ED5-2 Wye, 45 Degree
ED5-6 Capped Wye, Branch with 45
ED5-9 Symmetrical Wye, 60 Degree
ED7-1 Centrifugal Fan
ED7-2 Fan Inlet, Centrifugal
SD2-6 Stackhead


Rectangular

CR3-1 Elbow, Smooth Radius (No Vanes)
CR3-3 Elbow, Smooth Radius (1 Vane)
CR3-6 Elbow, Mitered
CR3-10 Elbow, Mitered Single thickness vanes
CR3-17 Elbow, Z-shaped
CR6-1 Screen
CR6-4 Obstruction
CR9-1 Damper, Butterfly
CR9-4 Damper, Opposed Blades
CR9-6 Fire Damper, Curtain Type
ER2-1Bellmouth, Plenum to Round
ER3-1 Elbow, 90 Degree
ER4-3 Transition, Rectangular to Round
SR2-1 Abrupt Exit
SR2-3 Plain Diffuser
SR2-5 Pyramidal Diffuser, Free Discharge
SR2-6 Pyramidal Diffuser, with Wall
SR3-1 Elbow, 90 Degree
SR4-1 Transition, Rectangular
SR5-1 Smooth Wye
SR5-13 Tee, 45 Degree branch
SR5-14 Wye, Symmetical
SR57-1 Fan, Centrifugal
SR7-2 Plane Asymmetric Diffuser at Centrifugal fan outlet
SR7-17 Pyramidal Diffuser at Centrifugal Fan Outlet


So there is no valid table for this type of fitting (at least according to the ASHRAE Fitting Database).

jason

[Anonymous]

How are the families conetcted to the Ashrae tables? How do you know which one is connected and which one is not? Can you expand on the tables?

[peterworley]

I'm interested in this as well...

I've noticed that there are many more fitting coefficient files than actual fittings available in the program. Is there content available for download that allows modeling of all the ASHRAE fittings?

Separately, how are the fitting tables linked to model elements? Can custom fittings be created and linked to an existing fitting file? Can new fitting files be created?

Thanks!

[peterworley]

Still haven't figured this one out.

I'm using Rectangular Tap - Beveled for my branch ductwork. To me this should be an SR5-13: Tee 45 degree entry branch. However, I can't select SR5-13 from the drop down menu in the element properties of this tap. Is there a better Revit element that I should be using for this type of a take off (see attached image)?

UPDATE: It seems like none of the standard taps have a link to the ASHRAE duct fitting table. Any thoughts?

Thanks!

--Pete Edited by: peterworley on Mar 31, 2010 11:04 AM

[Anonymous]

Has anyone come up with a work around for this yet?

[miguelvalencia5598]

I used the OTB "Rectangular Tee w/ Transition - Beveled Standard" family and selected the SR5-13 table. This seems to work

HTH

-Miguel

[revitworkbench]

Hello, just bringing this  back up so that maybe we can get an answer? Like how do you associate the ashrae tables to new fittings, and find the ashrae table for fittings that dont have any available in the drop down menu?