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Andy Kempfer - Res. Engineering & Design
P: 608-327-2348
Brad Noah - Engineering & Design
P: 920-491-5233
Brent Danz - Comm. & Res. Eng. & Design
P: 608-327-2330
Dave Jones - Comm. Engineering & Design
P: 608-327-2309
Paul Sobieck - Design & Engineering
P: 920-491-5232 |
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| News & Updates: |
| October 2009 |
| Fan Applications & Troubleshooting |
Continuing last issue’s discussion on fan problems : The TSI engineering department receives a number of questions about fans that aren’t performing up to expectations. So, we put together a few diagrams that might help you folks out in the field to get the most out of your fans. Although our pictures are showing utility set fans, the ideas can be applied to about any fan installation, including prop fans. In the last issue, we looked at the air Entering a fan. This issue, we are taking a look at the LEAVING side of the fan. The air LEAVING the fan needs to leave nice and smooth, with no sudden turns and no sudden changes in duct size. A nice smooth transition leaving the fan makes it run smoother, quieter and helps get the rated performance you are looking for.
When the air leaves the fan, the air wants to keep going in the ‘same direction’ that it was going when it left the wheel. If the discharge ductwork forces the air to turn in the opposite direction (see ‘incorrect installation’ below), this will have a negative effect on performance.
Also, on 3-phase fans, make sure you have the rotation of the fan wheel going in the proper direction. You wouldn’t believe the number of fans we check that the wheel is rotating the wrong way.
So, here’s some good examples: |
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From Charles Bryant's early gas-fired boilers to today's sophisticated home comfort systems, Bryant's standard for quality has remained the same: dependable, worry-free comfort.
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Calcana offers custom heaters for patios, restaurants, outdoors, garages for your home or business--get the best value with Calcana heaters
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Greenheck is the leading supplier of air movement and control equipment that includes fans, dampers, louvers, kitchen ventilation hoods, and energy recovery and make-up air units. Greenheck equipment is used in all types of commercial, institutional, and industrial buildings in applications from comfort ventilation to manufacturing processes.
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Tempstar makes residential and commercial central air conditioners and furnaces. Tempstar is owned by International Comfort Products (ICP), which is owned by Carrier which in turn is owned by United Technologies Corporation. ICP markets furnaces under the brand names of Arcoaire, Clare, Comfortmaker, Dettson, Heil, KeepRite, Lincoln, and Tempstar. ICP is headquartered in the United States.
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Sterling HVAC equipment, A Mestek Company, is proudly "Made in the USA". Sterling has been a major producer of CSA certified Gas Fired and Hydronic Unit Heaters for over 40 years. High and Low Intensity Infrared, Rooftop Duct Furnaces, Evaporative Cooling Units, Packaged HVAC Rooftop and Indoor Make-Up Air Units, and a full line of Industrial Products enhance Sterling's complete line of HVAC equipment.
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