Export Room Air Balance Report

The Export Room Air Balance Report command is used to create a report listing the air balance for each room in the project. The report can be exported to a tab-delimited text file or to a schedule on the drawing.

The supply, return, and exhaust airflow values are based on the diffusers that have been inserted on the drawing. The outside air airflow value is based upon the outside air requirement set by the user when the room was defined. The outside air percentage required is the outside air airflow value from the room divided by the supply airflow actually in the room. This number indicates the percentage of supply that must be outside air. As long as this number is below the percentage provided by the air handler, then enough outside air is being provided. If this number rises above the percentage provided by the air handler, then inadequate outside air is being supplied.

To create the air balance report, go to

DM HVAC->Building Definition->Reports->Export Room Air Balance Report

Air Balance Report Dialog Box

Building Definition--Reports.Air Balance Report dialog box

Export to File: Press this button to export the air balance report to a file.The information will be exported to a file named dm_hvac-airbalance.txt in your project folder. This file can be opened using a spreadsheet program such as Microsoft Excel.

Running the command again will overwrite the file. If you need to save any changes to the file, make sure to give it a new name. Otherwise, they will be lost if you run the command again.

Export to Drawing: Press this button to export the air balance report to a schedule on the drawing. You will be prompted to specify the insertion point for the report.

Specify insertion point for room air balance report:

The report will be inserted on the drawing. The layout of the report can be modified using the Edit Room Air Balance Report List command.


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