俄亥俄州哥伦比亚市一栋1459平方米（15700平方英尺）的办公楼新增了一套203kW（58吨）的水循环热泵系统。新的供暖、通风和空调（HVAC）系统预计将比原办公楼带有屋顶空调的电阻供暖系统能耗减少40%。28个水回路热泵连接到闭合的垂直地面回路，总长度为5944米（19500英尺）。这些回路安装在65个钻孔中，每个钻孔深46米（150英尺）。 新的暖通空调系统是美国第一个商用水循环热泵系统，在水平安装的热泵中使用涡旋压缩机和变速鼓风机。根据ARI标准330-90，新技术的性能系数（COP）高达3.6。介绍了这种新型热泵系统的设计和安装，并给出了运行前六个月的实际性能结果。关键词:水热泵，热泵，土壤换热器，设计，美国，垂直，空调。 引用:研讨会，ASHRAE Trans。1994年，第100卷，第一部分

A 203kW (58 ton) water-loop heat pump system was installed in a 1459 m2(15700 ft2) office building addition in Columbia, Ohio. The new heating, ventilating and air conditioning (HVAC) system is expected to consume 40% less energy than the electric resistance heating system with rooftop air conditioning in the original office building. The 28 water-loop heat pumps are connected to closed vertical ground loops totalling 5944 m (19500 ft) in length. The loops are installed in 65 boreholes each 46 m (150 ft) deep. The new HVAC system is the first commercial water-loop heat pump system in the United States using scroll compressors and variable-speed blowers in horizontally mounted heat pumps. The new technology provides a coefficient of performance (COP) as high as 3.6, as rated by ARI standard 330-90. Describes the design and installation of this new heat pump system and gives the actual performance results for its first six months of operation.KEYWORDS: water heat pumps, heat pumps, soil heat exchangers, designing, USA, vertical, air conditioning.