Air Column for Under Floor Heating and Cooling System

Abstract

An air column for an under floor heating and cooling system in which the fan wheel of the plenum fan is located at the bottom of the air column enclosure and is radially aligned with the inlet to the under floor air plenum.

1 . A air column that forces heated or cooled air into a plenum inlet of an under floor air plenum located beneath an elevated floor of an occupied space comprising: 
 a. an air column enclosure having: 
 i. an intake section with an air inlet;  
 ii. a discharge section with a fan outlet; and  
 iii. side walls interconnecting the intake section and the discharge section,  
   b. a plenum fan mounted within the air column enclosure and having a rotatable fan wheel that when rotated discharges air axially around its circumference through the fan outlet,    wherein the fan wheel, the fan outlet, and the plenum inlet are radially aligned.