VIII. COMPONENT CHECKOUT
THINK SAFETY 1. 1) Power Supply - from Commercial Utility b) Wire Size The wire with the white insulation is the neutral. There should be 115 volts (domestic USA) between the neutral and the hot (black) wire, but there should be 0 volts between the neutral and the ground (the green wire or the frame of the air conditioner). There must be no switches, fuses, disconnects, etc. of any kind in the neutral wire. The third wire may be covered with green insulation or it may be a bare metal wire. It is the ground wire. There must be 115 volts (domestic USA) between this wire and the hot (black) wire and 0 volts between it and the neutral (white) wire. The ground wire must be securely fastened to the air conditioner cabinet. A green headed screw is provided for this purpose. other wires. All switches, fuses, circuit breakers, disconnects, etc. should be in this line.
The power supply to the air conditioner must come through a circuit breaker or time delay fuse. The power supply must be 20 amperes and 12 AWG wire minimum. Any size larger wire at any time may be used and should be used if the length of the wire is over 32 feet. 2) Color Code c) The electric power from the electric service panel should be delivered through a 3 conductor cable and the Service Technician should check to be sure the color code is correct. The electrician probably installed the cable with the colors according to code, but don�t bet your life on it. a) The wire with black insulation is the hot wire and there should be 115 volts (domestic USA) between it and either of the
