MD HVAC case studies

The Maryland HVACR credential is a state license administered under the Maryland Department of Labor's Division of Occupational and Professional Licensing (DOPL), which lists Heating, Ventilation, Air Conditioning and Refrigeration (HVACR) among the boards and programs it oversees. The license is aimed at technicians and contractors who install, service and repair heating, cooling, ventilation and refrigeration equipment in Maryland and who must show they have met a standard of expertise before practicing. Candidates typically sit a multiple-choice licensing examination that spans five broad areas: refrigeration principles and system components; gas, oil, electric and hydronic heating; air distribution, ventilation and indoor air quality; electrical controls, motors and troubleshooting; and code, safety, installation practices and business/licensing requirements. Because the five areas are treated as equal-weight domains in most HVACR blueprints, a passing strategy has to be balanced - strong electrical troubleshooting will not offset a weak showing on refrigeration theory or code. The MD HVAC case studies are 5 cases and about 3,752 words.