Carrier Global Corp manufactures heating, ventilation, and air-conditioning, refrigeration, and fire and security products. Carrier's HVAC business serves both residential (40% of HVAC sales) and commercial markets (60% of HVAC sales). Carrier's refrigeration segment consists of its transportation refrigeration, Sensitech supply chain monitoring, and commercial refrigeration businesses. The firm's fire and security business manufactures fire detection and suppression, access controls, and intrusion detection products.