Adnan, You didn’t give us enough information to be able to write the equations. What happens when the radiation is high but the temperature is low? And the opposite condition? But we can set it up in a basic format for you to edit: Equations 3 SolarHigh = GT(Solar_R,100) TempHigh = GT(Temp,100) Win_ID = SolarHigh*TempHigh*ID1+SolarHigh*(1-TempHigh)* ID2+(1-SolarHigh)*TempHigh*ID3+(1-SolarHigh)*(1-TempHigh)* ID4 Basically set up your equation to account for all 4 outcomes. Just fill in the correct ID in the equation above and you should be good. Jeff - TESS Sent from my iPhone On Feb 15, 2019, at 4:48 AM, adnan rasheed via TRNSYS-users <trnsys-users@lists.onebuilding.org> wrote:
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