Fan:SystemModel doesn't calculate energy consumption
I was using the Fan:ConstantVolume object and my results showed the consumption of all the Fans. However, when replacing for the Fan:SystemModel object, only the energy consumption is zero, but there is normal mass flow in the loop. Looking at the branch, the fields "component object type = Fan: SystemModel" and "component name" are red. I'm sure I put the fans on Fan:SystemModel and that the names are correct. However, when I try to select the component object type = Fan:SystemModel does not appear in the options, so I had to insert it by typing. My e+ version is 8.9, so the Fan:SystemModel object is already available. I have change the fan object because i would like to used multi-speed fans.
How can i fix it?
I assigned "Design Electric Power Consumption = autosize", so it gave exactly the same result as with Fan: ConstantVolume. Assign "Number of speed = 3" and tested various combinations of "Electric Power Fraction", but the simulation is insensitive to that. I'm finding it strange, because even with Fan: ConstantVolume, the flow varies a lot. Each Fan object is on a separate branch. And even with the assignment of "Speed Control Method = Discrete" and with "Number of speed = 3" or using "Fan: ConstantVolume" the result is the same and the flow and consumption vary a lot (not just 3 possibilities