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Do I Need a Special Circuit for my Air Conditioner

Do I Need a New Circuit for an Air Conditioner? Air Conditioner Electrical Circuit Requirements, Replacing an Older Air Conditioner, Converting an Existing Circuit.

Do You Need Electrical Help? help with residential electrical wiring

Guide to Residential Electrical Wiring guide to electrical wiring

Air Conditioner Circuit
Electrical Question: Do I Need a New Circuit for an Air Conditioner?

I am replacing an old air conditioner with a more energy efficient model. Do I need a new circuit? I am replacing an old 18,000 BTU Air Conditioner that ran on a 220volt circuit, the new AC Unit is a more energy efficient model that is 15,000 BTU that runs on 115 volts. I was told a 115volt is what we know as 110volt, but that it is really 110 to 120volt. The 220volt is on it’s own breaker and I want the 115volt to also have it’s own breaker. How do I do this, do I have to trade out the circuit breaker? If I can isolate a 110volt that is close by and make sure nothing else is running on it but the air conditioner can I just use that until I get an electrician who will be upgrading our wiring? The lines I’m taking about are 20 to 30 years old and are up to specs, as far as I know.

This electrical wiring question came from: Eileen, from Lawrence, Kansas.

Dave’s Reply:
Thanks for your electrical wiring question Eileen.

Air Conditioner Electrical Requirements

Application: Air Conditioner Electrical Circuit Wiring.
Skill Level: Intermediate to Advanced – Best installed by a Licensed Residential Electrical Contractor or Certified Electrician.
Tools Required: Electricians Pouch of Hand Tools for Rough-In Wiring, Electric Drill and Auger Bits and Extension Cord for installing a new circuit.
Estimated Time: Depends on the extent of the project, the type of construction and available access to the project area.
Precaution: Any existing wiring in the immediate area that may interfere with the installation should be identified and turned OFF and Tagged.
Notice: Installing additional electrical wiring for an air conditioner should be done according to local and national electrical codes with a permit and be inspected.

The Basics of Electrical Circuits for Air Conditioners

NOTE: A Dedicated circuit is a circuit that is not shared by any other device.

More about Air Conditioner Circuit Wiring

Electrical Circuit Breakers
2-pole-circuit-breaker

220 Volt Wiring Diagram
220 Volt Wiring Diagram


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Wire It Right with the help of my Illustrated Wiring Book

Great for any Home Wiring Project.


  electrical wiring  

Complete Guide to Home Electrical Wiring

Perfect for Homeowners, Students,
Handyman, Handywomen, and Electricians
Includes:
Wiring GFCI Outlets
Wiring Home Electric Circuits
120 Volt and 240 Volt Outlet Circuits
Wiring Light Switches
Wiring 3-Wire and 4-Wire Electric Range
Wiring 3-Wire and 4-Wire Dryer Cord and Dryer Outlet
How to Troubleshoot and Repair Electrical Wiring
Wiring Methods for Upgrading Electrical Wiring
NEC Codes for Home Electrical Wiring
....and much more.





Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.

Electrical Tips to Help You Wire it Right

The Safest Way to Test Electrical Devices and Identify Electric Wires!

The Non-Contact Electrical Tester
This is a testing tool that I have had in my personal electrical tool pouch for years, and is the first test tool I grab to help identify electrical wiring. It is a Non-contact tester that I use to easily Detect Voltage in Cables, Cords, Circuit Breakers, Lighting Fixtures, Switches, Outlets and Wires. Simply insert the end of the tester into an outlet, lamp socket, or hold the end of the tester against the wire you wish to test. Very handy and easy to use.

The Quickest Way to Check for Faulty Electrical Wiring!

The Plug-In Outlet Tester
This is the first tool I grab to troubleshoot a problem with outlet circuit wiring. This popular tester is also used by most inspectors to test for power and check the polarity of circuit wiring.
It detects probable improper wiring conditions in standard 110-125 VAC outlets Provides 6 probable wiring conditions that are quick and easy to read for ultimate efficiency Lights indicate if wiring is correct and indicator light chart is included Tests standard 3-wire outlets UL Listed Light indicates if wiring is incorrect Very handy and easy to use.

Strip Off Wire Insulation without Nicking and Damaging the Electric Wire!

The Wire Stripper and Wire Cutter
My absolute favorite wire stripping tool that I have had in my personal electrical tool pouch for years, and this is the tool I use to safely strip electrical wires.
This handy tool has multiple uses:
The wire gauges are shown on the side of the tool so you know which slot to use for stripping insulation.
The end of the tool can be used to grip and bend wire which is handy for attaching wire onto the screw terminals of switches and outlets..

The wire stripper will work on both solid and stranded wire. This tool is Very Handy and Easy to Use.

« Testing Electric Light Switches Why an Air Conditioner May Cause a Hot Plug »

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