Air Conditioning and Refrigeration/ACR Fundamentals Short-Term Certificate Download as PDF This program is not eligible for Title IV funding (Pell Grant, SEOG, and Direct Student Loans). AIR CONDITIONING & REFRIGERATION FUNDAMENTALS COURSE REQUIREMENTS Item # Title Credits ACR 113 Refrigeration Piping Practices 3 ACR 119 Fundamentals of Gas Heating Systems 3 ACR 120 Fundamentals of Electric Heating Systems 3 ACR 121 Principles of Electricity for HVACR 3 ACR 122 HVAC/R Electrical Circuits 3 Sub-Total Credits 15 Total credits: 15 Overview Subject Advanced Manufacturing Program Code STC-ADMX-ACRF Type Short-Term Certificate