since the unit is new and the brand better than average, plus the refrigerant pressure strong, this is most likely a control or power issue. what you need to do is eliminate possible simple causes before concluding the compressor motor is defective.
things to try:
a) with power and control system on, open the access panel on the compressor and test for 220 volts [+/- 10v] at the relay [it's usually black with center button and is the size of a large matchbox] inputs (the ones connected to the power lead back to the disconnect on the wall). correct power supply as needed.
b) wearing rubber sole shoes and long pants [to prevent accidental power ground through your body], depress the center button on that relay. if compressor starts, the likely problem is the relay, so you then test the voltage at the control circuit [relay center terminals on most] -- this should be 24 volts ac. If this is absent, you ten open the air handler inside your house and test the transformer output -- there's a 5 amp automotive type fuse that sometimes blows when servicing an ac -- and disables the control system.
c) if compressor fails to start, immediately test output voltage at this relay ... should be same 220 volts as input. If this is so, culprits are [in likely order] bad run/start capacitor and bad motor. Capacitor is usually tested by replacing it [but this shouldn't need to be done on a new unit].
beyond that -- i'm at sea as well .... and thus the problem is one for the installer [unless that's you, of course].