Junction and transition fittings connect the sections of ductwork. A section is all ductwork from the inlet of a junction or transition fitting to the inlet of the next downstream junction or transition fitting. A root section is connected directly to the supply fan outlet. To use Duct Designer, you’ll need to understand the terminology used in the application.
Transition fittings Inlet, outlet, branch VAV boxes vs. The other tabs at the bottom of the screen allow you to enter the details of your planned duct network. If you choose, it also helps you resize non‐critical paths by identifying the fitting sizes and placement needed to balance the system. 2) By itself to compare fitting efficiencies. To use the Fitting Loss Calculator this way, click or the Fitting Loss Calculator tab. Describe the fitting(s) and applicable air conditions, and the applet calculates: velocity and velocity pressure at the inlet and at each outlet, and the pressure drop and loss coefficient at each outlet The Duct Configurator helps you size the supply‐duct system, identify its critical path, and determine the static pressure and the airflow required at the supply fan. There are two ways to use Fitting Loss Calculator: 1) Within Duct Configurator to add and size fittings within duct sections. In this case, the applet opens in a window labeled Fitting Input when you click Add Inline on the Sections worksheet. Data entry is simple and straightforward, calculation results appear almost instantly.įitting Loss Calculator computes the total pressure drop of a fitting based on its configuration, dimensions and the airflow passing through it. The calculation are based on an extensive library of fittings originating from United McGill and ASHRAE's 1993 duct fitting database. The electronic Ductulator is faster and easier to read. Duct Designer includes an electronic version of the Ductulator for free. If you are accustomed to using the cardboard Ductulators, you can throw them away. This allows you to pull detailed vav box selection data into duct designer for use in your model.
The customer version of TOPSS is integrated with duct designer. Transitions and junctions are available in the program that allow you to move between form factors as you create your design. It is possible to model rectangular, oval, or round duct work in duct designer. The ASHRAE fitting database is included with the application. It’s important to note that this software is used to design supply ducts, not return ducts. ©2015 Trane, a business of Ingersoll Randĭuct Designer will model supply duct systems from the main fan all the way to the diffuser or VAV box. Integrated with TOPSS™ for VAV selections.Models round, rectangular, and flat-oval duct.Models supply duct systems from fan to diffuser or VAV box.Properly apply advanced features within the program.Summarize the applications within the program (Ductulator, Configurator, Fitting Loss Calculator).Learning Objectives After viewing this video you’ll be able to….
Today, we will be offering an introduction to VariTrane Duct Designer. We’ll review the capabilities of Duct Designer and I will highlight key features.
Getting Started with VariTrane Duct Designer
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