... low price level and high efficiency, 100% speed/temperature control. What are the advantages of EC Blower motors?EC motors ... Housing made of aluminum, Stator pack: Coated in black 4)Technical features: Control input 0-10VDC/PWM, tach output, reverse polarity, Current ... /HRV/HRV controller, temperature sensors, pressure sensors and EC control software, etc. 12V ErP2013 Low comsumption EC blower motor ...