![]() Working in cramped spaces and during irregular hours is common. Their worksites may be very hot or cold because the heating and cooling systems they must repair may not be working properly and because some parts of these systems are located outdoors. HVACR technicians work mostly in homes, schools, hospitals, office buildings, or factories. Heating, air conditioning, and refrigeration mechanics and installers work on heating, ventilation, cooling, and refrigeration systems. What Heating, Air Conditioning, and Refrigeration Mechanics and Installers Do Quick Facts: Heating, Air Conditioning, and Refrigeration Mechanics and Installers ![]() Please enable javascript to play this video.
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