[Guangzhou] Construction Scheme for Installation of Fan Coil Units in Super High rise Building
The content introduction manuscript is the construction scheme for the installation of fan coil units in a well-known super high-rise building mechanical and electrical installation project in Guangdong. The project won Luban Prize. The building is a modern comprehensive building. The project is mainly composed of conference and exhibition center, communication production area, staff activity area, logistics service and property management area, office area, underground garage and main equipment area, tower top equipment area, etc. The total building area is about 119606 square meters. The building includes a 38 story 153.5 meter high main building A, a 43.75 meter high digital triumphal arch of building B, and a podium building. The total air conditioning area is 76000 square meters, accounting for 63.5% of the building area. Ventilation and air conditioning works include: air conditioning and ventilation, civil air defense ventilation. This process standard is applicable to the installation of standard products of horizontal, vertical and vertical fan coil units. Construction process and key points of operation: a. Pre inspection: before installation of fan coil unit, check whether there are damage, corrosion and other defects on the surface heat exchanger of each motor shell volume; b、 Motor inspection: each fan coil unit shall be inspected by power on test, and the mechanical part shall be free of friction, and the electrical part shall be free of leakage; c、 Hydrostatic test: the fan coil units shall be subject to hydrostatic test one by one, and the test strength shall be 1.5 times of the working pressure. It is qualified if there is no leakage for 2~3min after constant pressure observation; d、 Hanger installation: the hanger shall be installed smoothly and firmly, and the position shall be correct. The suspender shall not swing freely. The suspender shall be connected with the tray and fastened with double nuts for leveling and alignment. e、 Installation of fan coil: the fan coil must be installed stably and firmly; The connection with cold and hot water pipes shall be conducted after the system is flushed and drained to prevent blocking the heat exchanger; No leakage is allowed in the connection with the inlet and outlet pipes. The slope of the condensate pipe must meet the drainage requirements, and no reverse slope is allowed The data is 5 pages in total.