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[EnergyPlus_Support] LowTemperatureRadiantConstantFlow watertemperatures

I have an office with concrete core cooling and heating, using the LowTemperatureRadiantConstantFlow object.

In summer the temperature of the water must be 17°. In winter this must be between 26° and 17°C depending on the outdoordrybulb temperature.

In winter I can't get my high water temperatures... I only get 23-24 °C and this is even not at the lowest outdoordrybulb...

I've put the watertemperature constantly on 26°C, but even then, the watertemperature is fluctuating around 23.5°C..

I've put the boiler capacity extremely high, but no effect. What is preventing my radiant water inlet temp to have the exact temperature as demanded ?


 



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