Installing Trunk Line In Unfinished Attic

The intake and exhaust tubing the only exposed tubing in the installation run up the garage wall and into the attic.

Installing trunk line in unfinished attic.

The basic rules of the game however are the same whether you re. The upstairs i sized a duct for the amount of supply air coming into the basement and ran it from the main return trunk down to the floor near the middle of the basement just like upstairs supplies are near the. Attach trunk line to wood using 1 25 screws use two for both sides but do not over tighten. 5 hollow spaces of walls ceilings and attics where such spaces are insulated by loose rolled or foamed inplace insulating material that envelops the conductors.

Nec 2008 394 12 uses not permitted. A couple of years ago i even wrote an article about whether or not flex duct should be banned. The trunk line runs horizontally through the attic from the power unit to the furthest inlet location. Attach the bottom of the trunk at an angle hammering into place.

These are 16 inch 406mm wide plywood sheets 8 foot 2 4 m long. My answer was no but that we need better quality control. Centralvac international 12 800 666 3133. Hammer the ends of the metal to attach the pieces together later seal with sealant.

The most popular way seems to be before pipe installation in new construction and during pipe installation in existing construction. Locate a wall stud at the desired vacuum system power unit location adjacent to an electrical outlet if possible. Installing ductwork for heating and air conditioning is a bit like putting together a huge three dimensional jigsaw puzzle. Concealed knob and tube wiring shall not be used in the following.

Also it may not be as simple as stapling the wiring to the structural members. Branch lines spread throughout the attic connecting the trunk line to the inlet tubing. Another useful tip is to run a sprinkler on the roof during installation to keep the attic temperature down. When i updated and reposted the article recently at green building advisor jack lagershausen the executive director of the air diffusion.

Use the crimpers if you have to cut the pipe.