So-called "series-series counterflow" piping arrangements for chiller condenser and evaporator tube bundles can increase chiller plant efficiency and provide the lowest life-cycle cost when compared to other piping configurations. Groenke (2002) provides a review of various design configurations by analyzing competing system costs, energy use, chiller interface options, chilled and condenser water pump operation, and space considerations. [Groenke, 2002]
