亚洲中文久久久久久精品国产 ,橙人精品在线观看,AV性爱在线,花天堂免费视频在线播放啪,亚州欧美中文字幕精品综合,伦理片一区二区三区,51日日夜夜精品视频天天77 ,av电影中文字幕在线看,亚欧洲大片免费观看视频,2024国精一区二区三区,中文字幕第二區,人人中文字幕永久免费观看电视剧,精品视频77777,久久精品视频55,中文字幕一区二区三区日韩精品一区,999二区在线

A: The main engine should be kept horizontally and securely, with a spacing of not less than two centimeters between the ceiling and the ceiling, and a space of not less than 50 cm from the wall to facilitate maintenance.

Answer: The space above the ceiling meets the installation height requirements, the distance from the wall meets the maintenance requirements, the indoor piping piping is convenient, the supervisor can easily access the outside, and the distance between the two outdoor supervisors is guaranteed.

A: The air inlet is firmly installed and connected with the air duct. The air outlet is adjusted to a suitable opening degree.

Answer: The ground outlet flat pipe is generally laid in the floor heating insulation layer. The ground outlet can be installed on the ground or on the wall. The branch device is installed on the corner (convenient handling of the main riser). From the outside to the inside, the order is: Stainless steel outlet - Fresh air hose - PVC supervisor - fresh air hose - fresh air host - fresh air hose - pvc supervisor - branch - air flow control valve - to send air flat pipe (direct, elbow) - to ground outlet.

A: Upwind and fresh air and exhaust ducts are PVC pipes, and all are hidden in the ceiling. Installation should avoid crossover and minimize the length of the exhaust duct and the length of the hose.

Answer: The ground ventilation will lay the exhaust pipe and the new air pipe separately, avoiding the cross-influence of the air volume due to the pipeline during construction, and saving the space above the ceiling. Especially in the case where some rooms are not ceiling-mounted, the air supply from the site can still realize the diagonal arrangement of the air outlet and the air outlet, and the fresh air is sent back and forth, the airflow organization is more reasonable, and the comfort is higher. However, the cost is 20%-40% higher than the air supply.

答：用PVC大小頭連接。變徑后管徑的大小根據(jù)風量和風速確定。

A: Adjustable air outlets are generally selected. When the air volume is uneven, the air volume of each room can be adjusted. The air outlet type can be selected according to the air volume and the wind speed.