[TRNSYS-users] negative value for solar radiation

[Martina Pasini]

Hi, I'm an Italian student, I'm having some trouble with solar radiation,
but the message says "negative value for solar radiation on 20orientation
encountered" and I don't know if 20orientation (it is written without space
between the two words), is refereed to some orientation in particular... I
have filtered all the data about radiation with equation that choose the max
value between zero and the radiation... I don't know...
thanks for your kind attention... I apologise for my English...
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