Detailed Content Template Start -------------------------------------------------------------------------------? Announcement Content: Pre qualification Notice for Construction Bidding of Heating Renovation Project in Demoujiayuan Community, Jiugong Town, Tit2end1. Bidding Conditions and Bidding Conditions: The heating renovation project in Demoujiayuan Community, Jiugong Town, has been approved for construction by the Beijing Economic and Technological Development Zone Management Committee under Jing Ji Guan (Audit) [2025] No. 57. The bidder is Beijing Nanhai Zi Investment Management Co., Ltd., and the construction funds come from government investment (local). The project investment ratio is 100%. The bidding agency is Zhongzi Huayuan (Beijing) Consulting Co., Ltd. The project has met the bidding conditions and is now open for public bidding. Potential bidders who are interested are invited to apply for pre qualification. Tit2end2. Project Overview and Bidding Scope Project Overview and Bidding Scope end2.1 The construction site of this project is located in the boiler room, Xiyushun Road, and Demao Jiayuan residential areas of Demao community. Demao Community extends south to Xiyushun Road, north to Deli Road, west to Dexiang Street, and east to Shanglinyuan Community; Demao Jiayuan Community is located north of Xiyushun Road, east of Demao Street, south of the existing green space, and west of the existing Demao Bus Station 2.2. The construction scale of this project is as follows: 1) Planning approval content: The heating renovation project of Demao Jiayuan Community starts from the intersection of Jingfu Road (National Highway 104) and Decai Road at the corner red line in the north, passes through Decai Road in the south, and is laid 15.5 meters south of Yongzhong along Decai Road to the south red line of Decai Road before connecting to the internal heating pipe network. The pipe diameter is DN300 millimeters and the length is 388.1 meters (the specific location and construction scale of the project are subject to the construction project planning permit). 2) Planning approval content: One new 7-MW gas boiler and a 7-MW gas boiler will be built. Heat exchange unit and secondary water circulation pump, 2.6 MW/5.85 MW flue gas waste heat recovery unit; Upgrade and replace the circulating water pump, softened water system, make-up water system water pump, and flue gas online monitoring system equipment once; Revamp the boiler monitoring system and add intelligent IoT control valve monitoring; Renovation of boiler room building, water supply and drainage, ventilation, electrical, fire protection, carbon monoxide detection and other auxiliary systems. A new thermal pipeline with a diameter of DN65mm to DN300mm and a length of 1915.9m will be built from the boiler room in Demao Community, passing through Demao Community, Xiyushun Road, and Demao Jiayuan Community, to the building in Demao Jiayuan; Newly built underground thermal pipeline in Demao Jiayuan residential area, with a diameter of DN32 mm to DN80 mm and a length of 1325 meters; Add one Q=2000Nm3/h medium and low pressure gas pressure regulating box in the boiler room of Demao community, and construct 60 meters of outdoor DN200mm gas pipeline and 30 meters of indoor DN150mm-DN200mm gas pipeline. (Not used as a basis for obtaining construction permits) The heating area of this project is approximately 78000 square meters, with an estimated contract price of 14.6784 million yuan. 2.3 The construction period of this project requires 85 calendar days. 2.4 The bidding scope of this project includes construction drawings and engineering