Rheem 10 Seer Air Conditioner Wiring Guide

The term SEER stands for seasonal energy efficiency ratio and is used to measure the efficiency of heating and cooling systems.
Most units sold in 2011 and 2012 average in the 16 SEER range. Older models may go as low as 9 or 10. Wiring up a Rheem 10 SEER air conditioner involves connecting the compressor unit to the electrical breaker box for the house. In most locations, the breaker box will need to be installed by a professional electrician. Once that's set up, you may wire the air conditioner yourself.

Step 1

Turn off the switch at the main circuit breaker for the Rheem air conditioner. Tape the switch in place so that it isn't turned on by accident.

Step 2

Turn off the power at the breaker box located near the compressor. The compressor is the part of the air conditioner that sits outside your house.

Step 3

Use a screwdriver to remove the electrical panel on the side of the Rheem compressor.

Step 4

Use a pair of wire strippers to remove the last half inch of covering from the wires leading to the breaker box.

Step 5

Look for the terminal connection cluster in the center of the panel opening. Depending on your Rheem model, this could be a series of plastic tabs with cylindrical openings on the ends or a plastic block with screw terminals.

Step 6

Connect the wires from the extension box to the terminal as follows: connect the black wire to the terminal opposite the red wire, the white wire to the terminal opposite the blue wire and the green wire to the terminal opposite the other green wire. Once the wires are wrapped around or inserted into the terminals, tighten the terminal screw with a screwdriver.

Step 7

Replace the electrical panel cover. Restore the electrical supply to the condenser unit.

Things You Will Need

  • Screwdriver
  • Wire strippers


  • The above steps are just a guideline. Follow the instructions for your specific Rheem model if they differ from those above.
  • Before starting wiring, consult with your local electrical codes about the requirements for air conditioner installation.

About the Author

Nathan McGinty started writing in 1995. He has a Bachelor of Science in communications from the University of Texas at Austin and a Master of Arts in international journalism from City University, London. He has worked in the technology industry for more than 20 years, in positions ranging from tech support to marketing.