HAC 101

Air Cond & Refrig I

Elgin Community College · Fall 2026

5 sections3 open now
Add to a schedule

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

Updated 4 hours ago

101

5 openSeats: 11/16 seats Last recorded: Jul 25, 2026, 9:22 PM
Class #196128Fall 20263 credits
5 available11 enrolled16 capacity0 waitlist
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
Details checked 4 hours agoSeats checked 4 hours ago

100

FullSeats: 15/16 seats Last recorded: Jul 25, 2026, 9:22 PM
Class #196209Fall 20263 credits
0 available15 enrolled16 capacity2 waitlist
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
Details checked 4 hours agoSeats checked 4 hours ago

111

1 openSeats: 15/16 seats Last recorded: Jul 25, 2026, 9:22 PM
Class #196702Fall 20263 credits
1 available15 enrolled16 capacity0 waitlist
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
Details checked 4 hours agoSeats checked 4 hours ago

300

1 openSeats: 15/16 seats Last recorded: Jul 25, 2026, 9:22 PM
Class #196968Fall 20263 credits
1 available15 enrolled16 capacity0 waitlist
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
Details checked 4 hours agoSeats checked 4 hours ago

200

FullSeats: 16/16 seats Last recorded: Jul 25, 2026, 9:22 PM
Class #196995Fall 20263 credits
0 available16 enrolled16 capacity5 waitlist
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
Details checked 4 hours agoSeats checked 4 hours ago
Class numbers and section codes come from the registrar.
Spot missing or incorrect course data?