The Carrier CAELHEAT007A00 15kW Electric Heat Package is an auxiliary heating component designed for compatible Carrier HVAC equipment. Operating on 240V three-phase power, it uses electrical resistance elements to generate heat and warm circulating air when additional heating capacity is needed. Commonly used with compatible air handlers and packaged heating and cooling systems, this... https://www.partshnc.com/carrier-caelheat007a00-electric-heat-package-15kw-240v-3-ph