Part L error - "At least 1 Zone needed"

Question

Trying to create an EPC/SBEM certificate however an error pops up saying " At least 1 Zone needed ." Version v10.15.1.23 
 
 Created a new workplace and workset. 
 Imported the DXF files and modelled the building ( Supermarket). 
 Did a copy of a few materials and changed their U-values for the project. 
 
 For the Part L calc, there are 3 zones which I've used and for each one a different HVAC system. I've created inputs for each one and when I've tried to run the EPC/results/compliance it comes up with the error message attached. 
 Throughout all this I have not encountered any error messages in notifications. 
 
 I've recreated the model in the same workplace however in a separate workset and the same error message displays. 
 Not sure what I've done wrong. How can I resolve this?

Shane Regan · Accepted Answer

Hi Amrit, 
 I can confirm this is not a software error - it is a message to let you know that there are one or more rooms included that you have not assigned to any HVAC system. 
 Please find guidance on this workflow here . 
 Please also note the PartL course goes through this more in depth - it would be worthwhile going through this. It can be found here . 
 If required we can obtain your WorkSet via the related SR and will give you more specific advice in relation to this project.

Krishnendu Paul · Answer

Hi Bake, 
 
 Shane is on leave for this week and I thought of filling in. 
 
 You definitely do not need to use or assign the "all room" or "each floor" zone if that is hampering your workflow, it is there as a default so that it becomes convenient for users if they wanted to assign HVAC systems to the entire building or to individual floors. You can create your own zone and work with that. 
 
 Regards, 
 Krishnendu

Part L error - "At least 1 Zone needed"

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