Hvac Ductwork Attic Ductwork Layout

Remodeled home attic mounted hvac unit return box mounted approx 18 from side of ahu end has 20 flex duct attached and run in a big loop 10 15ft around to the end of the ahu.

Hvac ductwork attic ductwork layout.

In this video we ll be learning how to size and design a ductwork for efficiency. Hvac layout design. Larger volumes or higher static pressures should be dealt with on an individual job basis. Situate the air handler close to the center of the layout to minimize the length of ductwork spans.

Wouldn t it be better to just have the duct run directly 18 to the ahu. We have over 50000 hvac parts available to us. Avoid any hot elements such as water heaters heater or stove. Includes a full worked example as well as usin.

Place ducts on top of joists in a ceiling or attic. As i have been researching it seems that placing the ductwork within a conditioned space is more energy efficient than having it run through an attic area. In the 70 s and 80 s in slab hvac ductwork was commonplace and took advantage of the relatively stable temperature of the slab at or near the ground. Here are some of the common ductwork design mistakes that impede the function of your air conditioning.

Contractors can make the mistake of failing to consider the type of air conditioning system you have load requirements of different rooms where ducts and equipment are located and the materials used. With newer foundation systems involving embedded rebar or tension cables making in slab hvac ductwork nearly impossible there s little other option but to move it to the attic. This equal friction method of duct sizing should be adequate for normal residential furnace heating and air conditioning applications. Make sure your hvac contractor follows these duct design best practices and principles using manual d.

We re designing a passive solar home but will still need to incorporate some hvac for extremes. The following duct sizes are based on a fraction drop of 10 inches per 100 feet of lineal duct. How to design a duct system. The layout and installation of the duct system will incorporate these basic principles of good ductwork design.

Route ducts between joists in a basement if possible or over them if necessary. 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. Ductwork diy heating and cooling product sales for the do it yourself home owner.