Section 16 Machinery and mechanical appliances; electrical equipment; parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers and parts and accessories of such articles 84 Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof 84 15 Air-conditioning machines, comprising a motor-driven fan and elements for changing the temperature and humidity, including those machines in which the humidity cannot be separately regulated Commodity Code Description 84 15 10 - Of a kind designed to be fixed to a window, wall, ceiling or floor, self-contained or "split-system" 84 15 20 - Of a kind used for persons, in motor vehicles 84 15 81 - - Incorporating a refrigerating unit and a valve for reversal of the cooling/heat cycle (reversible heat pumps) 84 15 82 - - Other, incorporating a refrigerating unit 84 15 83 - - Not incorporating a refrigerating unit 84 15 90 - Parts