3-Wire and 4-Wire Condensing Fan Motor Connection

7.4K views · 66 reactions | Not all damper motors are created equal. While some will be just fine if you quote a universal motor (so long as the wire configuration matches), Carrier is a notable exception. Carrier damper motor replacements MUST be like-for-like. Elliot explains why in this quick clip from a recent HVAC service training session! | HVAC School | Facebook

universal mems on Instagram: "The post shares a video of a DIY homopolar motor built using a pink disposable cup as the armature, copper wire coils, a magnetic bearing, and a low-voltage power supply, sparking rotation via electromagnetic induction. This hack demonstrates basic principles of electromagnetism, akin to experiments in peer-reviewed physics education studies showing how simple coils and magnets can produce torque without brushes, making it accessible for home learning. With 150,000

Speed Control of DC motor - Types and applications