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2019-04-30 11:18:02 -0600 marked best answer OS Error:"The Flow Fraction for Surface x in Surface Group LOW TEMP RADIANT VAR FLOW nameCEILINGS is too low * Flow fraction of 3E-004 is less than minimum criteria = 1.000000E-003''

I get the error for each radiant ceiling that I inserted in different thermal zones in my model. I cannot find the field in open studio in which I can set the corresponding values to higher than 0.001. Has anyone experienced this problem before? Do you know how to fix it? Thank you in advance for your help and time!

2018-12-12 04:07:53 -0600 asked a question Which values should I set in the design cooling/heating supply air temperatures so I get less than 300 unmet hours for heating?

Which values should I set in the design cooling/heating supply air temperatures so I get less than 300 unmet hours for h

2018-12-07 06:30:53 -0600 received badge  Supporter (source)
2018-11-12 05:51:54 -0600 asked a question OS Error:"The Flow Fraction for Surface x in Surface Group LOW TEMP RADIANT VAR FLOW nameCEILINGS is too low * Flow fraction of 3E-004 is less than minimum criteria = 1.000000E-003''

OS Error:"The Flow Fraction for Surface x in Surface Group LOW TEMP RADIANT VAR FLOW nameCEILINGS is too low * Flow fra

2017-12-15 03:29:09 -0600 commented answer OS Error:''For zone: it is not possible to calculate the volume from the surrounding surfaces so either provide the volume value or define all the surfaces to fully enclose the zone.''

Thanks a lot for the answer/comment! I insert the values manually through OpenStudio extension as shown in the image and

2017-12-15 03:28:04 -0600 marked best answer OS Error:''For zone: it is not possible to calculate the volume from the surrounding surfaces so either provide the volume value or define all the surfaces to fully enclose the zone.''

I get the error for the majority of the rooms of my model! I have tried to solve the problem through sketchup (I checked the surfaces, and I redraw some of them to ensure that they fully enclose the zone) but I got back the same error. So, I thought that the easiest way is to provide the volume value, but I can't find in which field I can do it. Has anyone experienced it before? Do you know where can I provide the value of the volume? Thamk you in advance for your help and time!

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2017-12-14 11:10:26 -0600 received badge  Student (source)
2017-12-14 10:59:40 -0600 asked a question OS Error:''For zone: it is not possible to calculate the volume from the surrounding surfaces so either provide the volume value or define all the surfaces to fully enclose the zone.''

OS Error:''For zone: it is not possible to calculate the volume from the surrounding surfaces so either provide the vol