Скачать с ютуб Return Air 90 Degree Fitting- Integral Filter Rack в хорошем качестве

Return Air 90 Degree Fitting- Integral Filter Rack

This is a long video that includes a reasonably detailed verbal description of the steps required for fabricating a custom return air 90 degree elbow for attaching to the inlet of a gas furnace or to the return air plenum on an electric air handler. Also high lighted is a simple and safe way to include a filter slot within fitting that will house a standard size filter. At one point it is shown how easy it is to alter the layout during the process of fabrication if a better way is decided upon. Return air duct sizing is as important as the supply air sizing simply because too small of a duct will increase the velocity of the air flow to possibly decrease the efficiency of the filter. In other words, the dust particulate can be forced through instead of being caught in the filter media due to the increased suction pressure....which obviously is negative. Dust passing through a filter causes impregnation of the indoor coil surface which will also effect the systems operation....freezing the coil in the summer and if its a heat pump, possibly causing a high pressure fault. As always, the nearly continual chatter contains tips and tricks in accomplishing the task at hand and though they work in this case, they can be used in thousands of applications. I hope as well that the viewer finds something within that makes 28 minutes of video worth their while !! Music by: www.bensound.com/royalty-free-music/acoustic-folk