2024年3月26日 · Locate your HVAC unit and start by drawing the main duct first. Then, branch out the duct and extend it until it is close to the respective supply air diffuser. The size of the main duct is based on the total airflow or the airflow rated on your HVAC unit.

What is the Main Trunk? The Main Trunk(s) are the part of the duct system that all the air from the system is going to travel in before we "take off" the main plenum to the "diffusers" or grilles.

2021年7月29日 · The Basic Function of the Duct System. A ductwork system is designed to distribute airflow from your HVAC equipment to your entire home or commercial building. This encompasses the air that is sucked from the whole building into the air conditioner /heater where it gets cooled or heated and then pushed back via the ducts into your living space.

2024年3月26日 · In HVAC, main ducts and branch ducts are usually rigid ducts. They are more likely in a rectangular shape rather than in a square shape despite the higher cost because of the limited space above the ceiling. The thickness of HVAC rigid ducts starts from 0.6mm (24 SWG) and 0.8mm (22 SWG) up to 1.0mm (20 SWG) and 1.2mm (18 SWG).

Ducts typically snake through attics, crawlspaces, or basements – delivering cool air in summer and warm air in winter. Here’s a breakdown of the key components of a ductwork system: Main Trunk: Envision the main trunk as the highway of your duct system. It’s the largest duct and receives conditioned air directly from the heating and air ...

2023年1月13日 · When considering how to install ductwork, you’ll need to select a duct layout design that supports the size of your home. In an HVAC system, a trunk is a large, main duct — usually located in a ceiling or crawlspace — that carries heated or cooled air away from the furnace or A/C unit.

制程排气系统是指铁（氟）弗龙风管 排气系统 风管工程中，由 制程 机台至主管支管（Sub-main）间之连接风管，统称二次配排气风管（Exhaust Hook-up Ducting）工程；其主要是将制程机台所产生之各种废气（例如 酸碱性 废气、挥发性有机废气、一般性废气等等）经由二次配排气风管排至排气支管、主风管等再导入废气处理设备处理，处理后废气再排放至大气中的整个排气系统过程。 半导体产业在制造过程中，无可避免地必须使用不同种类的化学物质，为了提高产 …

2021年10月22日 · There are a number of different types of ductwork available that you can choose from to service your home or commercial property, each with its own distinct advantages and disadvantages. Ductwork can be broken down …

Duct delivers fresh air and humidification into your home. Ductwork is the channel through which the air in your home is filtered and purified, or expelled to the outdoors and replaced with fresh new air.

• Main ducts: air flow usually ≤ 15 m/s; air flow noise must be checked • With more demanding noise criteria (e.g. hotels), max. air velocity: main duct ≤ 10-12.5 m/s, return main duct ≤ 8 m/s, branch ducts ≤ 6 m/s • Face velocities for air-handling system components