Attic Ductwork Design

9 1 distributed return.

Attic ductwork design.

9 3 pressure balancing. 10 1 duct fittings and transitions. This involves return air unconditioned coming into the heating cooling system. Adapt the design to the type of unit.

It was new when the ac was put in 7 years ago. The purpose of residential ductwork design is to properly distribute the airflow produced by your heating cooling system to your house. One on a concrete slab. Recently i had another hvac company come out and put in a new bathroom vent and they told me they believed the duct work was full of water.

This involves return air unconditioned coming into the heating cooling system. I am planning to build a single story home near crystal river fl. Well in the comments dave roberts a senior engineer at the national renewable energy lab nrel wrote about a paper he co authored last year and included a link to it. 10 3 fire and smoke dampers.

Ductwork design to promote balanced air circulation through the supply ducts home and return ducts the ductwork should be simple in layout accurately sized sealed insulated in unconditioned spaces and installed in the right places. Information relating to thermal characteristics of each room as well as the local climate is utilized by the software. Return duct systems. The attic ductwork is flex duct work.

Ductwork design mistake 5. Duct fittings and terminal units. To maintain balanced air pressure and air movement your duct system needs return vents for air in the room to be pulled back into the hvac system. What goes into good ductwork design good ductwork design starts with a load calculation using manual j software the standard program produced by the air conditioning contractors of america.

9 2 central return. Then by heating cooling that air delivering the newly conditioned air to your home. Remember that article i wrote about ducts installed against the roof deck and how i said it was probably the absolute worst single location for installing ducts. 10 4 diffusers grilles registers.

8 7 rules of duct design acca manual d residential duct systems 9 0. Sketch a rough design using a central supply duct from the unit to the opposite end of the house with branches forking to each outlet. I have found all of these discussions informative. The purpose of residential ductwork design is to properly distribute the airflow produced by your heating cooling system to your house.

10 2 volume control dampers. And am thinking on laying the duct work on the attic floor covering the floor and ducts with 2 3 inches of cc foam and then blow insulation over all. A raised truss would also be used.