Table of Contents:

00:00 - HVAC Basics
00:12 - A Circuit
00:28 - Source
00:42 - Source Example
01:00 - Switch
01:18 - Switch Example
01:30 - Open Switch
01:54 - Closed Switch
02:07 - Open Switch
02:08 - Closed Switch
02:15 - Load
02:57 - Load Example
03:44 - Path
03:56 - Path Example
04:11 - Combination Devices
04:19 - Source and Switch
04:45 - Switch and Load
05:10 - Parts of a circuit
05:32 - Parts of a Circuit