Video-led explanations of fan operation, selection, testing and system behavior for HVAC and equipment engineers.
Large fan wheels have serious inertia, so how you start them matters. ...
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Sleeve bearings are quiet and cheap until they dry out. Ball bearings ...
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A tripping thermal protector is doing its job, and it is also telling ...
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A nameplate contains everything you need to order a replacement and di...
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Reversing rotation is straightforward on some motors and impossible on...
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An EC fan is a switching converter bolted to an impeller. That makes e...
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Modbus turns an array of fans into a set of visible, individually cont...
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A brushless motor cannot run without electronics, so the only question...
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Sourcing from China works well when the process is structured. Verify ...
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The three routes differ in who owns the design and who carries the ris...
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