Layout Hvac Duct Design

The manual d is a complete schematic drawing of the duct system including locations and sizes of trunk lines branch ducts outlet registers an inlet grilles.

Layout hvac duct design. How to design a duct for an hvac application. Situate the air handler close to the center of the layout to minimize the length of ductwork spans. Make the layout as symmetrical as possible with branch ducts spaced evenly along the trunk duct and each branch of similar length. Most heating cooling systems now are dual units with different elements for heating or cooling but sharing a blower and ductwork to distribute.

The layout and installation of the duct system will incorporate these basic principles of good ductwork design. Duct sizing calculations include constant pressure drop constant velocity and static regain. Today i ll start with what you do in the hvac design process before you get to the duct design phase manual d as well as the physics of air flow when it s constrained by ducts. Understanding basic residential ductwork design please note.

All information provided in this document is to be used as a guideline only. This course will discuss the basic fundamentals and principles of air conditioning duct design and layout. Design master hvac is an integrated hvac building design and drafting program that runs on top of autocad. I ll follow that up with articles on the process we use in designing duct systems including available static pressure equivalent length and choosing fittings.

Includes a full worked example as well as usin. How to design a duct system. In this video we ll be learning how to size and design a ductwork for efficiency. Ductwork comes in round rectangular and flat oval shape.

Choose the right duct size and layout. To account for all the necessary factors many professionals use a tool called acca manual d. Ensure proper ductwork sealing. Drafting features include single line and double line 2d ductwork with automatic fittings and 3d ductwork.

Once all the system variables have been decided your hvac design professional can determine the most efficient ductwork design layout and calculate the correct duct size. Before we go any further we need to consider some things which will play a big role in the overall efficiency of the system. The purpose of residential ductwork design is to properly distribute the airflow produced by your heating cooling system to your house.