Intermediate Work Activity: Install energy or heating equipment. Install energy or heating equipment. expand all collapse allWork Activity(1)Handling and Moving ObjectsOccupations(7)Solar Thermal Installers and TechniciansRoofersSolar Photovoltaic InstallersElectrical and Electronics Installers and Repairers, Transportation EquipmentHeating, Air Conditioning, and Refrigeration Mechanics and InstallersMaintenance and Repair Workers, GeneralGeothermal Technicians Smooth surfaces of objects or equipment.Fabricate medical devices.