Search for or "Daikin Select Tools."
You will find a download labeled "McQuay Duct Sizer" on the front page of DaikinApplied.com anymore. Instead, you are looking for legacy software or the newer "Daikin Tools" suite.
You can find the standalone McQuay Duct Sizer Version 6.4 on industry sites like MEPwork and MEPbase . download duct sizer mcquay
: Airflow in CFM (cubic feet per minute) or L/s (liters per second), and either Head Loss (friction) or Air Velocity. Calculated Outputs
The McQuay Duct Sizer is valued for its ability to handle complex fluid dynamics in a user-friendly interface: Duct Sizing Step By Step With McQuay Duct Sizer Search for or "Daikin Select Tools
For decades, HVAC engineers, contractors, and designers have relied on the (often referred to in legacy searches as the McQuay Ductulator ) to perform rapid, accurate duct sizing calculations. Although McQuay is now fully integrated into Daikin Applied , the legacy tool remains one of the most sought-after utilities in the industry.
Before we dive into the download process, it is essential to understand what this software does. The McQuay Duct Sizer is a free, standalone software application that solves the classic HVAC problem: : Airflow in CFM (cubic feet per minute)
The original McQuay Duct Sizer was written for Windows XP and Windows 7. If you are running Windows 10 or 11, you will likely encounter a compatibility error. Here is how to fix it:
Duct Sizer by McQuay offers a range of features and capabilities, including:
Unlike a physical ductulator (a cardboard wheel), the McQuay software also performs rectangular duct equivalent diameter calculations, making it indispensable for designing commercial HVAC systems.