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2. Ceiling fan - Wikipedia

   en.wikipedia.org/wiki/Ceiling_fan

   The Emerson "Heat Fan", the first ceiling fan to use a stack motor A close-up of the dropped flywheel on a FASCO "Charleston" ceiling fan Stack-motor ceiling fans. In the late 1970s, due to rising energy costs prompted by the energy crisis , Emerson adapted their "K63" motor, commonly used in household appliances and industrial machinery, to be ...

3. W. W. Grainger - Wikipedia

   en.wikipedia.org/wiki/W._W._Grainger

   W. W. Grainger, Inc., is an American Fortune 500 [5] industrial supply company founded in 1927 in Chicago by William W. (Bill) Grainger. He founded the company to provide consumers with access to a consistent supply of motors. [ 6 ]

4. 10 Outdoor Ceiling Fans That Aren't Total Eyesores - AOL

   www.aol.com/lifestyle/8-outdoor-ceiling-fans...

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5. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   The control circuit in a household HVAC installation. The wires connecting to the blue terminal block on the upper-right of the board lead to the thermostat. The fan enclosure is directly behind the board, and the filters can be seen at the top. The safety interlock switch is at the bottom left.

6. Fan coil unit - Wikipedia

   en.wikipedia.org/wiki/Fan_coil_unit

   These motors are sometimes called DC motors, sometimes EC motors and occasionally DC/EC motors. DC stands for direct current and EC stands for electronically commutated.. DC motors allow the speed of the fans within a fan coil unit to be controlled by means of a 0-10 Volt input control signal to the motor/s, the transformers and speed switches associated with AC fan coils are not required.

7. Building automation - Wikipedia

   en.wikipedia.org/wiki/Building_automation

   Building automation (BAS), also known as building management system (BMS) or building energy management system (BEMS), is the automatic centralized control of a building's HVAC (heating, ventilation and air conditioning), electrical, lighting, shading, access control, security systems, and other interrelated systems.