Overview

This issue is caused by removing all of the HVAC systems from a project using the HVAC Manager. Once this is done, you will not be able to access the HVAC Manager again.

Method

There are two possible resolutions to this issue:

Option 1

• Create a new project in AES
• Using Windows Explorer, go to the new project folder and then into the Hvac folder. there should be 3 files in here:
  UserHvac - Steadystate heat gain and loss.XML
  UserHvacHeader.xml
  UserHvacindex.xml
• Copy these files into the corresponding HVAC folder in your existing project folder
• You should now be able to open the existing project and access the HVAC manager.
  
  
  

Option 2

• Assuming you have accepted default installation folders, Using Windows Explorer browse to:
  C:\ProgramData\Bentley\AECOsimEnergySimulator V8i\WorkSpace\System\energydata\HVAC\ 
• Locate the Hvac-Steadstate heat gain and loss.xml file and copy it into the HVAC folder in your project directory
• Rename the file by inserting "user" at the beginning so it becomes UserHvac - Steadystate heat gain and loss.XML
  
• You should now be able to open the existing project and access the HVAC manager.

External links

Bentley homepage

Bentley LEARN Server