# Air Conditioning/Heating/Refrigeration (ACR) courses

Palomar College · 2026-2027 Catalog · 6 courses

Source: https://palomar.curriqunet.com/catalog/iq/32573/33385/32576

"Offered" lists sections in this catalog year's class schedules: Fall 2026, Spring 2027.

### ACR 101 — Air Conditioning, Heating, and Refrigeration: Mechanical

- **Units:** 3
- **Hours:** 1.50 hours lecture, 4.50 hours lab
- **Transfers to:** CSU
- **Offered:** Fall 2026, 4 sections (/c/palomar-college/schedule/fall-2026/acr.md); Spring 2027, 6 sections (/c/palomar-college/schedule/spring-2027/acr.md)
- Grading: Graded Only

Introduction to basic mechanical theory of air conditioning, heating and refrigeration. Application of principles and techniques to include system components and their interrelated functions, safety procedures, tools, and equipment.

### ACR 102 — Air Conditioning, Heating, and Refrigeration: Electrical

- **Units:** 3
- **Hours:** 1.50 hours lecture, 4.50 hours lab
- **Transfers to:** CSU
- **Offered:** Fall 2026, 4 sections (/c/palomar-college/schedule/fall-2026/acr.md); Spring 2027, 6 sections (/c/palomar-college/schedule/spring-2027/acr.md)
- Grading: Graded Only

Introduction to the fundamentals and application of electrical theory as related to air conditioning, heating and refrigeration. Study of basic electrical theory, alternating current, electrical controls, motors, schematics, and electrical meters.

### ACR 103 — Air Conditioning, Heating, and Refrigeration: Heating

- **Units:** 3
- **Hours:** 1.50 hours lecture, 4.50 hours lab
- **Advisory:** ACR 101; ACR 102
- **Transfers to:** CSU
- **Offered:** Spring 2027, 2 sections (/c/palomar-college/schedule/spring-2027/acr.md)
- Grading: Graded Only

Applied theory and principles used for the different types of heating systems for personal comfort and general purpose heating. Course topics include gas, electrical, solar, reverse refrigeration cycle heat pumps. Theory and application of dual fuel heating systems and oil heat. Course will prepare students to use proper tools and test equipment to install, trouble shoot, evaluate and perform appropriate corrective action and repairs.

### ACR 105 — Refrigerant Management and Recovery

- **Units:** 1
- **Hours:** 0.50 hours lecture, 1.50 hours lab
- **Transfers to:** CSU
- **Offered:** Fall 2026, 4 sections (/c/palomar-college/schedule/fall-2026/acr.md); Spring 2027, 4 sections (/c/palomar-college/schedule/spring-2027/acr.md)
- Grading: Graded Only

History, theory and understanding of the United States Environmental Protection Agency regulations as set forth under Section 608 of the Clean Air Act of 1990, which described requirements for recycling ozone-depleting refrigerants. Preparation to take the EPA certification exam.

### ACR 110 — Advanced Air Conditioning, Heating and Refrigeration

- **Units:** 3
- **Hours:** 1.50 hours lecture, 4.50 hours lab
- **Prerequisite:** ACR 101 and ACR 102
- **Transfers to:** CSU
- **Offered:** Fall 2026, 2 sections (/c/palomar-college/schedule/fall-2026/acr.md)
- Grading: Graded Only

Theory, advanced principles and techniques of air conditioning and refrigeration. EPA regulations and safety requirements; complex control systems; chilled water systems, associated pumps and piping; and the installation, troubleshooting, repair, and maintenance of residential and small commercial units.

### ACR 111 — Advanced Air Conditioning, Heating, and Refrigeration: Installation

- **Units:** 3
- **Hours:** 1.50 hours lecture, 4.50 hours lab
- **Prerequisite:** ACR 101 and ACR 102
- **Transfers to:** CSU
- **Offered:** Fall 2026, 2 sections (/c/palomar-college/schedule/fall-2026/acr.md); Spring 2027, 2 sections (/c/palomar-college/schedule/spring-2027/acr.md)
- Grading: Graded Only

Theory, advanced principles and techniques of air conditioning, heating, and refrigeration system installation. EPA regulations and safety requirements; sheet metal fabrication, ductwork handling, refrigerant piping, proper tools, electrical planning and sizing, controls, gas piping, flue piping, controls, indoor air quality, and the soft skills required in our trade. Also covered will be a review of the prerequisite courses and the troubleshooting, repair, and maintenance of residential and small commercial units.