Apr 29, 2008 · Hello, I have a dedicated outlet for a 220V window air conditioner that is. connected to the main panel with 12-gauge wire and a 20-amp fuse. The. label on the air conditioner says "Cooling Amps 15.0/16/5," which would. lead me to believe that the wire is sufficient for the load. But, the. label also says "use time delay fuse or circuit breaker