I think you've got your AWG crossed.
http://en.wikipedia.org/wiki/American_wire_gauge
22 AWG wires have 0.644mm diameter, 0.326mm2 cross section area, usually good for signalling cables, not for power.
14 AWG wires have 1.628mm diameter, 2.08mm2 cross section area, good for up to 350W 36V...