HAC 101
Air Cond & Refrig I
Elgin Community College · Fall 2026
Catalog description
Prerequisite: Grade of C or better in HAC 119 or concurrent enrollment in HAC 119. ^ This course introduces the fundamental principles and practices of mechanical refrigeration and air-conditioning systems. Students learn the full refrigeration cycle and study major system components, including compressors, condensers, evaporators, metering devices, receivers, and refrigerants. Core topics include temperature measurement and conversion, absolute temperature, and basic gas laws. Hands-on instruction emphasizes the safe and efficient use of tools, torches, and materials for installing copper. The course also focuses on proper refrigerant handling-recovery, recycling, reclaiming, and emission-reduction practices-to prepare students for EPA technician certification and responsible environmental stewardship. (1.2) Proficiency Credit Available (3 LETSIR) Pass/No Credit Available
Sections
Current meeting, instructor, credit, and enrollment details
101
5 openSeats: 11/16 seats Last recorded: Jul 25, 2026, 9:22 PM- Days & times
- Mo We · 12:00 – 3:35 PM
- Meeting dates
- Aug 24 – Oct 14
- Location
- Manufacturing Tech Ctr 109Manufacturing Tech Ctr 103
- Instructor
- George Rosa
100
FullSeats: 15/16 seats Last recorded: Jul 25, 2026, 9:22 PM- Days & times
- Tu Th · 8:00 – 11:20 AM
- Meeting dates
- Aug 25 – Oct 15
- Location
- Manufacturing Tech Ctr 109Manufacturing Tech Ctr 103
- Instructor
- Reyes Estrada, JR
111
1 openSeats: 15/16 seats Last recorded: Jul 25, 2026, 9:22 PM- Days & times
- Tu Th · 8:00 – 11:20 AM
- Meeting dates
- Aug 25 – Oct 15
- Location
- Manufacturing Tech Ctr 109Manufacturing Tech Ctr 103
- Instructor
- Reyes Estrada, JR
300
1 openSeats: 15/16 seats Last recorded: Jul 25, 2026, 9:22 PM- Days & times
- Tu Th · 12:00 – 3:35 PM
- Meeting dates
- Oct 27 – Dec 17
- Location
- Manufacturing Tech Ctr 109Manufacturing Tech Ctr 103
- Instructor
- Reyes Estrada, JR
200
FullSeats: 16/16 seats Last recorded: Jul 25, 2026, 9:22 PM- Days & times
- Tu Th · 6:00 – 9:20 PM
- Meeting dates
- Aug 25 – Oct 15
- Location
- Manufacturing Tech Ctr 109Manufacturing Tech Ctr 103
- Instructor
- David Valdez