Abstract：

As a district energy centre, the station is different from a small-scale one in design characteristics, requiring that the safety, cost-effectiveness and energy efficiency be comprehensively considered during the designing. Based on a practical project, discusses several noteworthy points including the low temperature heat source in the sewage side, heat/cold supply network arrangement, units configuration, user-side terminal settings, etc., and summarizes the design characteristics of the central station. Compares it with the traditional HVAC systems in the mode of power-driven refrigeration plus boiler heating, showing that it is more advantageous in the effects of economics, environmental protection and energy efficiency.