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Bell & Gossett - SystemSyzer

System Syzer is an HVAC tool that helps with piping system design. The application is based on the original plastic wheel calculator by designed by Gil Carlson of Bell & Gossett. It was first introduced in 1963 and has since been distributed to well over a hundred thousand engineers and tradesmen.
Category Price Seller Device
Reference Free Xylem Inc. iPhone, iPad, iPod

The tool is made up several different calculators. There is a calculator for friction loss and velocity through pipe based on your fluid conditions. Use it to determine the relationship between fluid temperature, system flow and heat/cooling load. There is a Cv tool that can help in multiple ways.

We have also bundled the Circuit Setter® / Triple Duty Valve calculator that is very handy for balance contractors. Use it during design to help predetermine valve settings and out in the field to determine flow through the valves based on pressure drop readings.

Reviews

DO NOT TRUST THIS APP!!!
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I have been doing air and water balance for 26 years. Accuracy is critical if you are a water or air balance professional. We use meters that cost thousands of dollars each. I love innovation, when it actually works.... I would give this app negative stars if possible! I have exclusively used the hand wheel chart when balancing water flow on circuit setters. I saw this app about three years ago, downloaded it and was using it for a little bit. I noticed enormous discrepancies between the GPM’s that were reported on the app and the hand wheel chart. The original issue was, when the degree setting was set to zero, you would get a bogus GPM reading no matter what valve size you were using when you input a pressure differential. I contacted the B&G parts distribution company Dawson and informed them of the problem. Dawson responded wonderfully and contacted the software designer of the app and had the issue resolved. Dawson was so thankful that they sent me a free sweater. Good business. After using the app again, a new issue was discovered. This new issue is very serious and can cause the app to report a GPM reading that is completely different than what it actually is by an extreme amount. I contacted the Dawson company and reported the issue and this time the response was different, they did not seem that interested in trying to have the issue corrected. Not sure why they had a lack of concern. It is for this reason that I am not going to report what the actual issue is and I am doing this in hopes that somebody who actually cares will read this and reach out & contact me from either Dawson or the development group so it gets fixed. The app is a good idea, but it’s no more than that for now until things are fixed. Those of you that use the app can probably figure out what the bug in the software is yourself & I HIGHLY RECOMMEND THAT YOU DOUBLE CHECK YOUR GPM READING AGAINST THE WHEEL CHART FOR EVERY MEASUREMENT WHICH DEFEATS THE PURPOSE OF USING THE APP ALTOGETHER!!!!


B&G wheel on hand
Pat 1776

Love this handy app! I am a NEBB BCP / TAB that works for a large mechanical contractor. I have used this app for years to communicate the GPM flushing requirements, troubleshoot issues with systems, and pre balance hydronic loops.


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Inaccurate compared to B&G class materials
DevilsPoet

App needs work. Compared to other modern apps the interface is old slow and lacks sophistication. For example, fields must be reentered often, and auto populate with values that must be backspaces to removed.


Great app!
Dooguls81

Great program. A must have for any engineer in the fluid handling business.


Sales Engineer
HydronicsGeek

Nice app! Very fast engineering values for piping design. nice to quickly set fluid properties without going to tables.


Sales Engineer
TigueG

Awesome Ap - A must have for engineers and contractors!!!!!!


Very Handy
Cx Agent

Quite useful in the field as well as office


Hydronics!
TongPoJones

Easy to use whether on a jobsite or in the office!


PE
Packpumpeddlar

Great app for on the fly hydronic calcs!


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