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