To clarify for anyone else reading this, DM HVAC does calculate the pressure drop using the correct fittings. However, for some fitting, the round and rectangular tables are the same. When we implemented the calcs, if the tables were the same, we just used one. At the time, we did not directly display which table was being used, so there was no need to differentiate.
The ability to list the fittings was added later, and we didn't realize the importance of listing the specific correct table name. At some point, we'll go back, figure out which tables are duplicates, and get the proper names in the schedule.
Fixing this will only affect the names in the schedule. The actual calculated values will be exactly the same as they are right now.
I see this as a different idea from the "Generic Schedule" idea. For this idea, I think a key concept is being able to insert references to the notes in the schedule on the drawing. We could try to force that into the generic schedules, but I think they would be better handled as separate things in the software.
Comment from Brody on a different idea I merged into this one:
Anybody who uses your product to engineer building systems currently has to build a parallel model of the building for energy code compliance documentation generation purposes. Y'all already have a lot of the input categories and types a DOE2.2 input file would require in your BIM. Finding some kind of common currency with other BIM software for easy compatibility is tough in some cases, but here you can straight-up use the DOE2.2 input file format.
I'd wager good money that you'd need more manpower to get a feature set this big done, but it conceptually dovetails so neatly and captures a neighboring market populated by customers you already have - it might be worth it, perhaps as an add-on package? Maybe you partner with another company that's already writing a pretty front-end to DOE2.2? Bottom line is: having DM be able to do full ASHRAE 90.1 Appendix G/LEED Title-24 equivalent calculations and spit out meaningful papers would be a *gigantic* value-add.
What differences exist in the Canadian Electrical Code from the NEC that are not addressed by Design Master Electrical? We haven't added anything like this partly because we know that we don't know what we would be doing.
We currently can label ducts in SI units, using CM or MM. You can also label airflow in LPS.
All the calculations are done in imperial units and ducts are sized to even inches. It is just the labels that we can currently change.
Thanks for sending the project. That helped me understand what you were asking for. The request is to remove all the labels from the homerun (circuit label and wire callout) and replace it with a keynote. The workaround I originally mentioned only removes the wire callout (which, in the case of low voltage devices, is just a conduit size).
I can't recreate the settings you have to see the behavior you are describing. Could you send us a project using the DM Electrical->Help->Send Project to Design Master Support command? That would help me better understand what you are seeing and what you want instead.
Currently, you can automatically remove the wire callouts from low voltage homeruns. You'll have to insert the keynote, but this will save you a step.
You want to check the "Show Conduit Sizes on Homeruns" setting for your groups. See this page in the documentation for information on where to make that chagne:
What energy codes in particular are you trying to comply with? We have some ideas for more complete solutions to the energy code problem that might be better than just a total watts field.
For example, a lot of states use ComCheck, so there's the idea of exporting everything to that format:
Similar export features, if they are possible, is something we are a little more interested in for the future.
For the time, the best workaround for this issue is to open the drawing on the other project and copy-and-paste the specific piece of equipment you want copied. If the equipment is in the database only, you'll need to insert it on the drawing, copy it, then remove it from the drawing.
Interesting feedback about the text masks being difficult to control. We had to add them to the HVAC software to get hatched ductwork to look right. We haven't heard any complaints about them yet, but we'll keep an eye on them.
If we do implement this, it will be as an option. You won't be forced to use text masks.
We are working on updated HVAC documentation. The next item that will be published will be the HVAC user manual.
Here's the documentation from the Electrical user manual that covers the master and standards databases. The concepts in the two programs are the same.
We do have the ability to insert a basic fire / smoke damper using the DM HVAC->Fittings->Fire / Smoke Damper command. It includes the pressure drop through the damper.
It is limited to two types and not at all customizable. If we implemented this feature, it would be to expand the dampers to be able to include custom graphics.
We are working on a "Merge Project" command that will allow you to copy panels from one project to another. When that is available, you'll have to give that a try and see if it satisfies your requirements for this feature or not.
The current workaround for this is to add breaks to the existing pipe before and after the branch, then change that small section to new.
We will definitely keep the Next and Previous buttons.
Editing Multiple Devices (which probably does deserve a different topic if it is something you would like to see changed): For items on the drawing, we have the "Edit Multiple" commands you can use to change everything but equipment. That you do have to change one-at-a-time, so one request might be to add an "Edit Multiple Equipment Connections" command.
For items in schedules (such as light fixture types), we do not have a way to edit more than one at a time, which might be another request you want to make.
This is a good idea. I'll need to think through what unexpected problems it could create, but it seems like it should work.
Until we get a chance to implement it, you can use the "Find" button to select the item you want from a list, rather than being limited to the "Next" and "Previous" buttons.
We don't need any samples quite yet. If we decide to implement this feature, we'll get in touch with you to get them.
Thanks for the additional information. That makes sense. Do you know what kind of import functionality SKM provides?
What does SKM allow you to do with your schedules that DM does not? (While we might add an import/export feature, it is more likely we'll just add the missing functionality from SKM to our software.)
Here's a link describing the workaround:
The current workaround for this problem, for anyone else viewing this feature request, is to insert a fixture on the drawing for each lamp you need to aim.
If you don't want to end up with incorrect fixture counts, you can create two different fixtures: one for the fixture and the load, and one for the lamps. Insert the fixture once and circuit that. Then, insert the lamp fixtures, one for each lamp and aim these. In the schedule, turn off the lamp fixtures so they do not appear.
Our current recommendation for this situation is to use Windows file permissions to make the master database read-only for users who should not have access to it. They will be able to view the master database and copy settings to their projects, but will not be able to make any changes to it.
When you do this, you have to set the permissions on the database file itself. They need to have read-write permission on the customization folder on the network still.