一个住宅规模的地源热泵（GSIHP）系统已经开发出来，目前正在进行现场测试。该系统是一个标称2吨（7千瓦）冷却能力的变速装置，具有多功能，例如空间冷却、空间加热、专用水加热以及同时进行空间冷却和水加热。高效无刷永磁（BPM）电机用于压缩机、室内鼓风机和泵，以获得最高的部件性能和系统控制灵活性。 实验室测试数据用于校准四种主要运行模式下的蒸汽压缩模拟模型（HPDM）。该模型用于优化内部控制选项，并模拟所选的内部控制策略，例如在空间加热模式下控制恒定的送风温度，在水加热模式下控制固定的水温升高。为每个运行模式生成设备性能图，作为所有自变量的函数，用于TRNSYS年度能源模拟。 对安装在2600平方英尺（242平方米）隔热良好的房屋内的GSIHP进行了上述操作，并将其连接至垂直地面回路热交换器（GLHE）。我们选择了一台13 SEER（3.8 CSPF）/7.7 HSPF（2.3 HSPF，W/W）ASHP机组和0.90能量因数（EF）电阻热水器作为节能比较的基准。年度能源模拟在美国五个气候区进行。此外，为每个位置确定合适的接地回路尺寸，以满足设备10年的最低和最高设计进水温度（EWT）。 GSIHP原型系统预计使用的能源比基准系统少52%至59%，同时满足年度总空间调节和水热负荷。引用:德克萨斯州达拉斯ASHRAE会议论文。

A residential-size ground-source integrated heat pump (GSIHP) system has been developed and is currently being field tested. The system is a nominal 2-ton (7 kW) cooling capacity, variable-speed unit, which is multi-functional, e.g. space cooling, space heating, dedicated water heating, and simultaneous space cooling and water heating. High-efficiency brushless permanent-magnet (BPM) motors are used for the compressor, indoor blower, and pumps to obtain the highest component performance and system control flexibility. Laboratory test data were used to calibrate a vaporcompression simulation model (HPDM) for each of the four primary modes of operation. The model was used to optimize the internal control options and to simulate the selected internal control strategies, such as controlling to a constant air supply temperature in the space heating mode and a fixed water temperature rise in water heating modes.Equipment performance maps were generated for each operation mode as functions of all independent variables for use in TRNSYS annual energy simulations. These were performed for the GSIHP installed in a well-insulated 2600 ft2(242 m2) house and connected to a vertical ground loop heat exchanger(GLHE). We selected a 13 SEER (3.8 CSPF )/7.7 HSPF (2.3 HSPF, W/W) ASHP unit with 0.90 Energy Factor (EF) resistance water heater as the baseline for energy savings comparisons. The annual energy simulations were conducted over five US climate zones. In addition, appropriate ground loop sizes were determined for each location to meet 10-year minimum and maximum design entering water temperatures (EWTs) to the equipment. The prototype GSIHP system was predicted to use 52 to 59% less energy than the baseline system while meeting total annual space conditioning and water heating loads.