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Electrician Training Electrical Certification wiring recessed light fixtures Electrical Wiring Electrical Troubleshooting and Electrical Repairs wire outdoor light fixture Home Electrical Wiring Diagrams
wiring home generator and transfer switch wiring a 220 volt range cord outlet Wiring for GFCI Outlets Wiring Outlets and a Switched Outlet Wiring and Installing Ceiling Fans and Remote Controls wire dimmer switch wiring diagrams for switches wiring a dryer cord and 220 outlet circuit breaker panel
Electrical Wire and Cable

Wiring a 3Phase Air Conditioner


home electrical wiring
By
Summary:Electrical Wiring Question:
On a 3 phase wire system, does it matter what the orientation of the BLACK, RED and BLUE is when hooking up an industrial AC unit?

How to Wire a 3 Phase AC Unit


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Electrical Troubleshooting Question:
On a 3 phase wire system, does it matter what the orientation of the BLACK, RED and BLUE is when hooking up an industrial AC unit?
And if so can it make the compressor run backwards?
Thanks, Chad.


Hi Chad - Great Electrical Repair Question!

3 Phase Electric Motor Wiring and Motor Rotation
When connecting any motor to 3 phase power you could find that the rotation is wrong, and if it is all you have to do is shut off the power and swap any two lines of the 3 phase power and this will change the rotation.

If you need to have the rotation correct the first time then simply get a phase rotation meter that can be used to see what the rotation is before you connect to the equipment.

IMPORTANT: Be very careful when working with 3-phase power.

Be Careful and Be Safe - Never Work on Energized Circuits!



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Wiring Home Electric Circuits
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