Quick Check and Validation


In this case, we presume you have designed a specific BIM Model, with Daikin specific defined objects and units in it that are defined in a logical system.



It is not necessary to have all pipes and pipe connections modelled yet. It is perfectly possible to have designed a conceptual pipe with analytical connections to the specific units in order to run the tool.



With this set up we can now click on either the Validation or "JSON Export" button in the Systems tab. The tool will now check the model and designed system on certain settings. If no errors are found the Revit pop-up will show a message like the image below, if there are errors found, the lines containing the error will be shown in red.  


If selecting Export JSON, you will be asked to save the export file (.JSON-file) at a location on your computer. 


You can then navigate to the VRV WebXpress tool, go to the Acceptance site and import the .JSON-file in WebXpress. 

The ultimate validation will now take place. A tree structure will be shown in WebXpress, and it will indicate if additional errors can be found according to the Daikin design instructions with a red cross icon. 



Modelling and modifying in Revit

As already stated in Step 1, not everything should already be modelled in the highest detail level. For convenience it can be added in later steps.


In this second step of the Happy Flow we will now demonstrate how easy it is to add some extra objects. 


You can now model the conceptual pipe of the main pipe segment, and it doesn't necessarily needs to be the Main Branch. 


With the basic Revit MEP Systems functionality you can generate the analytical connections. 


After which it is possible to now check the model again and export it to a .JSON file that can be imported in WebXpress.


The imported .JSON file will be validated and calculated in WebXpress


You can now manually sunch the changes back into Revit (Refnet references, pipe diameters, eg)


After this it is possible to start with the annotation/documentation.




Further Design changes

The reality - uncertainty, design changes, ...


Different levels of detail in piping:

  • Logical Connection
    They provide all possible freedom to design.
  • Conceptual Pipe + Analytical Connections
    • Accurate pipe lengths can be obtained through the Revit functionality 'Equivalent pipe length'
    • Indoor units can be easily changed without disconnections, when a floor-standing unit becomes wall-mounted f.e., so the position and the size of the unit changes.
    • Also at the side of the outdoor unit, it can be easily replaced, even to the other side of the network
      • The tool easily adopts the height of the Main Pipe
      • Copy-Mirror applications on Daikin Ribbon can deal with this
         
  • Conceptual Pipe
    • Any analytical connection can be worked out in more detail to a conceptual pipe, to have actual pipe lengths, and/or to make exeptions clear (beams)
    • Still easily switch between heat-pump and heat-recovery, which will be added as a future development
  • Generic Pipes
    • Actual number of pipes (2 or 3 pipes)
    • Geometrically correct up to a certain level of detail
    • Still feasible to manipulate
    • Decision on what is Main Branch and what not is still open (can still change without adapations on piping) 
    • Can at this level of detail already be used in Augmented Reality on-site (eg Tablet or even Hololens)

  • Specific Pipes
    • Actual number of pipes (2 or 3 pipes)
    • Geometrically correct
    • Very hard to manipulate
    • Main Branch or not should be clear by now
    • Can be used in Augmented Reality on site (tablet or even Hololens) 
    • Prefabrication! 
    • VRV 5 Flammability and Toxicity checks (and reporting)

Design thinking:

Stay as long as possible in a low level of detail.

Only once the changes are unlikely that it will still change at this level of detail, you move onto the next level.