Hi guys,

Currently i'm maintaining several type and brand of chillers at the sites and i was thinking to do an energy management of centralized chiller plant.
One of my proposal is to regulate outgoing/supply chilled water temperature setting to the optimum set point which means the highest supply chilled water can goes with not affecting thermal comfort at the rooms. I've done to Trane chiller and the result is good.
But the question here, is there any side impact/effect to the chiller efficiency if the supply chilled water is set from design 44degF to 48degF (the 4degF increase is the maximum it can goes - not to compromise the comfort level)

thanx