2022-2023 Academic Catalog 
    
    Jul 11, 2025  
2022-2023 Academic Catalog [ARCHIVED CATALOG]

INHR 12131 - Symbols and Wiring Diagrams

0.50 CR
HVAC-R technicians must have a thorough understanding of electrical symbols and diagrams. This module builds the knowledge of common symbols and typical devices they might find on a diagram. By the end of the module the student will be able to interpret and draw the symbols, and place them into a simple ladder, schematic, or pictorial drawing of HVAC-R equipment. 

Course Learning Outcomes:
  1. Demonstrate safe and proper use of electrical tools and equipment.
  2. Demonstrate knowledge of basic electrical theory.
  3. Demonstrate knowledge of electrical circuits.
  4. Demonstrate an understanding of electrical communication using schematic and pictorial drawings. 
  5. Demonstrate an understanding of HVAC-R electrical controls.
  6. Demonstrate electrical troubleshooting strategies and techniques on HVAC-R equipment.