Abstract: A permanent magnet (PM) motor is provided to facilitate air movement through heat rejection equipment. The PM motor has a body, an upper bearing housing positioned on and extending upwardly from a top surface of the body, a shaft connected to and extending from the upper bearing housing and in communication with a fan, and a lower bearing housing positioned on and extending downwardly from a bottom surface of the body opposite the top surface. The PM motor further includes a mounting assembly having at least three discrete legs disposed on a lower end of the body and extending outwardly from the body.

Abstract: A cooling tower and/or a fan drive system are provided which enhance cooling performance, are able to reduce lateral temperature gradients at least to some degree, provide for easy removal of debris and/or provide for easy fan adjustment.

Abstract: A heating tower apparatus for heating a liquid. The heating tower includes a frame assembly, liquid distribution assembly and a fill medium. The heating tower additionally includes a hood that extends from the frame assembly. A shroud is disposed within the hood and the hood provides an air flow outlet. The heating tower further includes a track connected to the frame assembly along with a first door connected to the track and a second door connected to the track. The first door moves along the track between the hood and a first air flow inlet while the second door moves along the track between the hood and a second air flow outlet. The heating tower also includes first and second winches that operate to move the first and second doors along the track.

Abstract: A cooling tower and/or a fan drive system are provided which enhance cooling performance, are able to reduce lateral temperature gradients at least to some degree, provide for easy removable of debris and/or provide for easy fan adjustment.