HRAI Duct Calculation & Sizing:
Right-Duct™ (HRAI) is a fast, easy-to-use residential duct sizing and calculation software, using the HRAI duct calculation methodology, that requires room-by-room loads, the friction loss rate for the longest run in the system, and very little else.
With Right-Draw® and Right-F280™, simply set your system’s external static and pressure drops, select your duct library (complete with HRAI fitting list), and draw your ducts where you want them. Or choose to utilize one of auto-draw systems. Right-Duct™ (HRAI) will select the fittings, measure the actual and equivalent length of the runs and calculate the appropriate friction rate for each duct.
Use Right-Duct™ (HRAI) to:
Automatically size your ducts. This program will choose the right duct sizes for your project based on airflow, static pressure and user selected fittings.
Automatically place registers within a floorplan. Once your floorplan has been established in Right-Draw®, Right-Duct™ (HRA) will place your registers for you with the click of a button.
Connect branches to trunks at the click of a button.
Automatically add Flex End for sound attenuation. Once your main duct branches are set, easily add flex duct to each supply branch run.
Consider “What If” scenarios. Choose to change the filter pressure drop, or change the airflow or fan pressure and the entire system will instantly change to account for the alterations made.
Easily view ducts by system. Right-Duct™ (HRAI) is color-coded to help define which system you are viewing.
Ensure a properly design system. Let Right-Duct™ (HRAI) be your second set of eyes by highlighting fittings that do not fit together properly.
Easily customize the balance between supply and return air.
- Auto-Branch Run - The program connects branch to registers or grills after trunk line is drawn.
- Riser Take Off - Ability to run a horizontal trunk or branch from mid- section of duct riser.
- Auto-Input Flex Duct Define - A fixed length of flex duct to be installed at the end of every branch run to attenuate noise.
- Auto-Place Registers - Automatic register placement using customized user rules.
- New Register Types - Increase accuracy of registers with new register types like high wall, low wall, ceiling one way, ceiling two ways and more to choose from.
- Auto-Size Registers - The program will auto-size all your registers to maintain your target register face.
- Register Notation - Improve look and feel of drawing by controlling register notations displayed.
- Smart-Checker for Branch-to-Trunk Connections - Warning displays when non-congruent sized branch-to-trunk.
Right-Duct™ (HRAI) is the ultimate HRAI duct design program for all skill levels. Simply set and save your preferences, draw your floor-plan with the help of Right-Draw®, and when combined with Right-F280™, your duct design is practically done for you. If you wish to rely on your own design knowledge, you may also choose to design the system manually, and rely on the smart features if ever in doubt.