Workflow to Retrieve HVAC Data

You can create a report to retrieve HVAC data. The following scenario shows how you can retrieve attributes from a connection.

Note: In the following scenario, the variable default names are kept. It is recommended to customize these names to clarify the report template.

Before you begin: In HVAC Systems Design:
  • Create a logical reference.
  • Under the logical reference, create a system containing two piping lines IDs.
    1. The first one groups two dampers and define their equivalent diameter.
    2. The second groups a damper, an instrument and a miscellaneous.


See Also
About Workflow Overview
  1. From the Structure tab, to display the component name and its equivalent diameter:
    1. Drag Table in the graphical area.
    2. In the first cell, drag Text and enter Comp Name.
    3. In the second cell, drag Text and enter EQ.
  2. To define a report template for HVAC data:
    1. From the Properties tab, in the Parameters area, click New.
    2. Optional: In the Name box, enter Logical Reference.

      The input parameter type for this method is Logical Reference. By default, the name of the created input parameter is p.

      Note: This parameter can be renamed as well as for all iteration variables. For more information, see Renaming Template Elements.

    3. From the Type list, select Logical Reference.
  3. To access the HVAC data:
    1. From the Data tab, expand the following variables and categories.
    2. Drag the methods to the graphical area.
    Variable and Type Category Method Graphical Area
    Logical Reference (p) Extensions Get All Sub-Components Empty space.
    RFLVPMLogicalInstance (rel) Types As HVAC Logical Instance Entity Loop on Get All Sub-Component of Logical Reference: rel
    HVAC Logical Instance Entity (rel2) Types As HVAC Logical Part Inst Loop on As HVAC Logical Instance Entity of rel: rel2
    HVAC Logical Part Inst (rel3) Hvac Get Connection List Loop on As HVAC Logical Part Inst of rel2: rel3
  4. To display the HVAC values:
    1. From the Structure tab, drag Table in Loop on Get Connection List of rel3: hva.
    2. From the Data tab, expand the following variables and categories.
    3. Drag the method to the graphical area.
    Variable and Types Category Method Graphical Area
    HVAC Logical Part Inst (rel3) Attributes Name First cell of the row in the table, in Loop on Get Connection List of rel3: hva.
    HVAC Line Cnx (hva) Attributes V EquivalentDiameter Second cell of the row in the table, in Loop on Get Connection List of rel3: hva.

In this example, the template is defined to display:

  • The name of the HVAC logical part.
  • The equivalent diameter that belongs to the connection.


You can visualize the report file to be generated. For more information, see Previewing a Report.