Design Master Wish List

The current releases are DM Electrical RT 2.0, DM Electrical 8.6, DM HVAC 7.3, and DM Plumbing 4.1. We are not adding new features to these releases.

The next releases will be DM Electrical RT 2.1, DM Electrical 8.7, DM HVAC 7.4, and DM Plumbing 4.2 We are actively working on these release and using this wishlist to guide which features we implement. Features marked as "Planned" will be available in these releases.


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  1. Net Occupiable Floor Area

    Most codes determine ventilation air based on "Net Occupiable Area" and not the actual room area. It would be nice to have a feature added that would allow for the net occupiable area be added at the room dialogue level (either by inputting the value or setting it as a percent of the room area) and be utilized in calculating the ventilation air.

    1 vote

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  2. Design Master HVAC Revit

    Provide a way to run loads and layout Ductwork and Air terminals within Revit?

    1 vote

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  3. "Match Room Properties" for Load Calculations

    When doing room definitions for load calculations there are some properties that pertain to many or all other rooms in the building like "ceiling height" and the "roof properties."

    I think it would be useful to have a command like match wall properties for the room properties so I can set up the roof (which almost always applies to the whole building), ceiling height, ventilation requirements, etc. and copy from one room to any others that have the same properties.

    1 vote

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  4. Make duct centerlines independent of DIMSCALE

    When working at a smaller scale (ie. 1/8th"), make it so the duct center lines always appear the same size. The duct center lines are drafting tools only and do not appear on the drawing therefore having them adjust with the DIMSCALE is not neccesary. When the DIMSCALE is changed to 96 or higher, drafting in tight spaces can be difficult when the duct centerlines are large because the arrows are too large to work with and tend to overlap others.

    1 vote

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  5. Labeling diffuser cal louts with (TYP 2) if they are in the same room or near each other.

    When the same diffusers are located in the same room, it would be nice if there was an option to label one diffuser and then (TYP and then the quantity it applies to) as opposed to labeling each individual grille/diffuser. This would help clean up the drawings quite a bit from unneeded notations.

    1 vote

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  6. Add option for multiple neck sizes under one diffuser tag in the schedule

    In the diffuser tag, add a spot to list the diffuser neck size (so the duct runout doesn't need to be labeled and will clean the drawings up). It would be nice if one diffuser tag can be used for various diffuser neck sizes, for instance, a CD-1 is more of a description of the diffuser type and model and a pull down with diffuser neck size would be input, then the schedule can list CD-1 with a line for quantity of each diffuser size. This would make creating a master schedule much simpler.

    1 vote

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  7. Duct and pipe demolition

    Convert existing ductwork and piping layer to demolition.

    1 vote

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  8. Equipment Database

    Allow us to create an Equipment Database similar to the diffuser database which would include dimensions, and notes such as: electrical requirements, efficiency, performance data at design conditions, etc. The equipment should also be included in the takeoff report.

    1 vote

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  9. Change default "max depth" setting for ductwork

    Add an option for the default "max depth" value that is used when you insert a new duct. Currently it always starts at 24 and you have to remember to change it if you want something different.

    1 vote

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  10. 1 vote

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  11. Acoustical Calculations

    Add acoustical calculations to the ductwork.

    1 vote

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  12. Compare Number of Balancing Dampers with Diffusers

    A simple command that checks the number of volume dampers to the number of diffusers/grilles/registers in the database.

    1 vote

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  13. Add capability to have separate two line callouts for supply and return diffusers.

    Add capability to have custom two line callouts for supply, return and exhaust diffusers as there is currently for one line callouts. Allow the second line to be blank for the return callout as there is often no need for cfm on the return callout. Same as a two line callout for supply diffusers and one line for return grilles.

    1 vote

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  14. 'Capped Ductwork for Future Use' command

    This is similar to the 'end cap' command, but would draw a 'capped for future use' symbol on the end of a duct branch.

    1 vote

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  15. HVAC - Allow for the input of design Notes

    In the "Room Project Schedule" add a box which would allow for the addition of design notes. This would allow for the designer to document why certain values where chosen. When the loads are printed the notes would also be displayed for reference.

    1 vote

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  16. Choose Fittings Used In Pressure Drop Calculations

    Add the ability to choose the specific fitting type used when calculating pressure drop in duct systems. Currently, the fitting type is fixed.

    1 vote

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  17. Remember Zone Tree Settings

    Remember which zones are opened and closed in the zone tree dialog box when you open and close it.

    1 vote

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  18. Variable Pressure Drop for Diffusers

    Using the maximum scheduled pressure drop for every scenario over inflates the pressure calcs. This is very important for low-pressure systems with low static terminal units such as ducted VRF and Fan Coil Units that max out at .25". Using the maximum scheduled pressure drop of say, .1" for air devices make it difficult to design low static systems accurately.

    1 vote

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  19. Add an option to the "Duct: Edit Multiple" dialog that allows users to choose whether to preserve duct endpoint connections or not.

    So if I query and individual duct section and change the elevation of either end, the ducts the ends are connected to also change elevation to preserve the connection between the endpoints. If I "edit multiple" on several duct sections and change the endpoint elevations, the other duct sections connected at those points do not change elevation to preserve the connection. Sometimes, changing the elevation of one endpoint without keeping any other endpoints attached is what I want, and sometimes I wish the connections were all preserved. I think there should be a drop-down, a radio button, or something on…

    1 vote

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  20. Ability to differentiate diffuser of different systems in the diffuser schedule

    Ability to differentiate diffuser of different systems in the diffuser schedule. i.e. turn on or off diffusers associated with New, existing and demo systems.

    1 vote

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