I opened up the panel for the new 1.5hp motor. It looks like its already wired for CCW rotation at 120V which is what I wanted. It looks like they didn’t attach the green ground wire to the green ground screw inside. The wiring diagram on the motor makes no mention of ground. Should I connect the ground anyways? Also they used 18 gauge wire for the cord which seems a bit thin for the 17.6 amps the motor is rated for. Should I upgrade the wire also. If so, to what gauge?
If I have to rewire this anyways, should I wire it for 240? Are there any advantages to 240v other than smaller wire gauges?