OperationTab for Calculated Natural Ventilation in 4.6

Help on setting up the building geometry, including importing from BIM

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Posts: 8

OperationTab for Calculated Natural Ventilation in 4.6

Postby cristina.carpino » Fri Feb 26, 2016 5:34 pm

Hi all!
I have a very perplexing problem!

I installed the 4.6 version. I have to use the CALCULATED NATURAL VENTILATION for simulating a model.

The problem: even though I set the ventilation natural option to CALCULATED in MODEL OPTIONS, in the Openings Tab the OPERATION tab does not appear !!!
:cry: :cry: :cry: :cry:

So I can't input the scehdule for the windows opening.

In the previous version (4.2) this tab occurred when moving ventilation on "Calculated". (See attachments)

Is there some new setting in the new version to input the operation of external windows?

Please, could someone verify this setting on 4.6 version?!?!

I trust in your help!!
Openings Tab 4.6.jpg
Openings Tab 4.6.jpg (159.12 KiB) Viewed 2798 times
Opening Tab 4.2.jpg
Opening Tab 4.2.jpg (536.5 KiB) Viewed 2798 times
Luis Sousa
Posts: 340
Location: Stroud

Postby Luis Sousa » Fri Feb 26, 2016 5:48 pm


The Free Aperture has its own section independent of the Operation header in v4.6. (Openings tab)

Could you please confirm that you have switch ON the 'Natural Ventilation' option at the HVAC tab?

The Operation header will be displayed at Openings tab only if the Nat vent (HVAC tab) is turn on.

Posts: 8

Postby cristina.carpino » Sat Feb 27, 2016 10:59 am


I checked the HVAC Tab and switching ON Natural Ventilation the Operation header is now displayed on Openings Tab :oops:

Thanks very much :)

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