It is an observation, not a calculation.
GPM is read from the flow rate gauge on the piping.
...........
https://bellgossett.com/literature-library/
I'm having trouble with a few CRAH units at a data center that I suspect are not putting out their rated tonnage. I'm trying to calculate the actual GPM so I can put that into a tonnage calc (which I have the formula for). I just can't remember the GPM calc formula. Is there anyone that can share that? I know it's something like <<<< the square root of Design ^P / Actual ^P >>>> or maybe actual / design and I can't remember if there is a coefficient to be used. I can't seem to find it anywhere on the interwebs either.
Thanks in advance for any help.
It is an observation, not a calculation.
GPM is read from the flow rate gauge on the piping.
...........
https://bellgossett.com/literature-library/
Designer Dan __ It's Not Rocket Science, But It is SCIENCE with Some Art. _ _ KEEP IT SIMPLE & SINCERE ___ __ www.mysimplifiedhvac.com ___ __ Define the Building Envelope & Perform a Detailed Load Calc: It's ALL About Windows & Make-up Air Requirements. Know Your Equipment Capabilities
Actual GPM = Square root of (actual PD / design PD) x design GPM
Designer Dan __ It's Not Rocket Science, But It is SCIENCE with Some Art. _ _ KEEP IT SIMPLE & SINCERE ___ __ www.mysimplifiedhvac.com ___ __ Define the Building Envelope & Perform a Detailed Load Calc: It's ALL About Windows & Make-up Air Requirements. Know Your Equipment Capabilities