While McQuay no longer actively distributes a standalone proprietary pipe sizer under that exact name, the reference persists in the industry. Most technicians are actually referring to the app or the classic Carrier/Hays pipe sizing charts adapted for McQuay equipment specifications.
Do it right, and your chilled water system will run efficiently for 20+ years. Have you used the Daikin Pipe Sizer app on a recent McQuay chiller install? Share your experience in the comments below.
If you work with HVAC hydronic systems—specifically McQuay (Daikin Applied) chillers, air handlers, or fan coils—you have likely heard the term McQuay Pipe Sizer .