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Pulley Size And Amp Draw. Increasing the pulley to 3.2 inches also increases the amp draw to 7.8. Check the circle next to the item you are solving for and enter the remain three items in the spaces provided.
30 Curtain Pulley System Diagram Wiring Diagram Database from kovodym.blogspot.com
2) since i'm looking to replace the pulley on the blower i cant find the same size at my local stores and i'm wondering if this will cause an issue? The no load for a 7.5 hp motor, 5 amps. Troy’s response… “i would go with a 3hp 1800 rpm as that is what they used from the factory or you could use what is called a cheater motor which would be 3450/3600 rpm 22.5 amp rated.
30 Curtain Pulley System Diagram Wiring Diagram Database
It is important that any dress up pulley sets do not deviate from this ratio. This will result in a predetermined change in the fan speed. Now, we already know the size of the pulley, either from the manufacturer’s data or we can go out into the building and actually measure this. Duct work on hot air furnaces would have different back pressure, so i would adjust pulley to the motor specs using a amp probe.
