Abstract: In order to study the impact of the change of outlet water temperature on the heating performance of air-cooled heat pump chiller which adopts electronic expansion value and modularity energy adjustment system，the experiment is carried out on 5 this kind of unit with 60kW refrigerating output in the variable working conditions of outlet water temperature in the range of 39—50℃，ambient temperature in the range of -10～13℃ and relative humidity 90%.The heating capacity of the unit between 34.6—78.8kW，consumed power between 16.2—22.2kW，heating COPh between 1.77—4.20.The effects of outlet-water temperature of condenser on heating capacity，input power and COPh were examined，which provides the basis for energy saving operation and optimization design.

Key words: air-cooled chilled (hot)water units, outlet-water temperature；electronic expansion valve；heating performance

摘要： 为了研究出水温度变化对采用电子膨胀阀和模块化能量调节系统的风冷热泵冷(热)水模块化机组制热性能的影响，对5台名义制冷量和制热量分别是60kW和64kW该类机组进行实验研究，实验工况是变工况，其出水温度是39～50℃、环境温度-10～13℃、相对湿度90%。实验得出制热工况时出水温度在39～50℃范围内，机组制热量是34.6～78.8kW，消耗功率是16.2～22.2kW，COPh值是1.77～4.20，以及得出出水温度对机组性能参数的影响规律，这些规律为风冷热泵冷(热)水模块机组的节能运行提供了依据。

关键词: 风冷冷(热)水机组, 出水温度, 电子膨胀阀, 制热性能