If the indoor installation area is subject to freezing temperatures, the water piping must be protected by insulation.
如果室内安装区域可能出现冰冻温度，则水管线必须加装保温层保护。
In this paper, we consider the influence of piping system of indoor heat exchanger on coefficient of heat exchange and loss pressure.
讨论了室内侧换热器管路系统对换热系数和压降的影响。
应用推荐