How do I fix a bend type on the top of a vertical rising duct and the bottom on the same floor. If I fix using fix bend/Tee command It will only let me fix one. Do I have to try and simulate this in a different way to get the outcome.
Isometric view example
Fixing view example
If you go to Ducts > Defaults and change the pipe height to the height of the other bend, then you should be able to pick it then.
Shane Regan | Senior Building Performance Support Engineer
That does not work. I tried that and it still only selects one of the bends. Below is an example of It only fixing one of them. I can fix one of them to a square mitre multivane but the other is still the default is this case a medium rad bend.
Hi Dan, you could change your default bend type, prior to tracing the pipework, by going to Fittings > Default Bends/Tees. You can change it back afterwards if needs be.
I am drawing ductwork just to clarify (not sure if that makes a difference or not). The problem with that is it changes the rest of my default bends to the same which I suppose I could manually fix the rest to the previous default. In a larger system I don't always use the same bend type in all rises for example I can use a long radius bend at the top and a short at the bottom on one duct rise and a short radius and short radius for another. I was just wondering how I would simulate this best using Hevacomp. I was thinking maybe I could add another identical floor between the rise that way I could select both. However, I wondered if it were possible to do this on the same floor.
Sorry my mistake I meant to say one I would use a multi vane top Long radius bottom & the other riser would be short radius short radius.
Hi Dan, I see what you mean. It looks like these two options are the only methods that would give you what you need. Adding the additional floor (while inconvenient I'm sure) is a good idea to get around this if you have a very large system. Alternatively it might be easier to just add a slight slope to the riser, so the bends are not on top of one another. This should let you select each bend while still giving accurate pressure results.
Answer Verified By: Dan Frost