System Design - Duct Sizing

An introduction to HVACR Duct Design, Static Pressures, Effective Length, Longest Run, and Total Effective Length.

Table of Contents:

00:00 - Design
00:23 - Duct sizing
01:09 -
01:22 -
02:31 -
02:51 - General Duct Design Guidelines
03:16 -
03:30 - Duct sizing procedure
03:57 -
04:27 -
04:56 -
05:25 -
06:36 -
06:58 -
07:32 - Determining available Static Pressure
08:15 -
09:40 -
10:12 -
10:16 -
10:17 -
10:31 -
10:35 -
10:53 -
11:11 - Determining Total Effective Length
12:05 -
12:28 -
13:04 - The longest duct run is highlighted in red
14:33 - Total effective length
15:03 -
15:27 - Total effective length
15:28 - The longest duct run is highlighted in red
15:30 - Total effective length
15:31 -
15:32 - Determining friction rate
16:41 -
16:55 - Determining air quantity for each room
17:11 -
17:23 - Answers to this example
18:30 - Determining Duct size
18:46 - Airflow friction charts
18:57 -
21:04 -
21:14 - Maximum Duct Leakage
21:51 - Maximum Duct Leakage
21:52 -
21:52 - Maximum Duct Leakage
21:53 -
21:54 -
22:13 -
22:14 - Maximum Duct Leakage