An Air Conditioner Educational Demonstration System is composed of eighteen main components and removable interlocking tubing lines along designated component points. A teacher can disconnect various components and demonstrate characteristics there. The main components are: 1) condenser; 2) gauge port #1; 3) high pressure service valve; 4) gauge port #2; 5) open/close valve #1; 6) gauge port #3; 7) metering device and evaporator; 8) nitrogen pressure port; 9) gauge port #4; 10) open/close valve #2; 11) gauge port #5; 12) low pressure service valve; 13) gauge port #6; 14) compressor; 15) separation valve; 16) low pressure line; 17) high pressure line; 18) nitrogen tank. The system having: a condenser; a compressor; and an evaporator; such that the condenser is removably connected to the evaporator and removably connected to the compressor; and wherein a nitrogen tank is removably connected to the evaporator through a port on the evaporator.