Hello All, I am trying to model an air cooled chiller that has one pump and is connected to three U machines and one screw machine. I have the HP and the pressure drop through these machines but I can't figure out how to connect them to the system I created. Basically I am trying to get the savings of having the plant as it is now vs adding a fluid cooler. I know in order to add the fluid cooler, I have to add another chiller to the loop and make it a water economizer (is that correct?) Does anyone know how I can get those four machines connected to the loop? Is there a better way to do this? I have used eQuest to do some energy modeling and LEED stuff but I am no good at this detailed edit mode stuff. I am always afraid I am missing something.