22 May 2002
Application of groundwater heat pumps (GWHPs) in HVAC systems has gained popularity in China in recent years. A retrofit project is reported in this paper with the GWHP in place of an existing system with a boiler and a cooling tower. The characteristics of the screw water-to-water heat pump used in the project are recommended. High quality performance has recorded in the past operations of the GWHP system.