continious duty and long life dual-speed motor Use and Feature: dual-speed motor have double speeds function, the speed can adjustable, Set ... device, low noise, the Motor have good cooling performance, especial apply to Water-cooled air-conditioning, central air conditioning equipment and matching for ... .52CL12M280B11/2,1/6220501425/9501936.8x29.6x24.52 dual-speed motor for air conditioning