Regardless of your uncle's name:
If you were installing this in the dessert, without the facilities of a developed country: -
You can use the refrigerant charge to 'drive-out' the air in the tubes.
This is bad practice, but better than leaving air in the system. It involves venting some refrigerant to atmosphere, which is now considered irresponsible.
Air in the system will cause high condenser pressures. Moisture will become ice and block the small orifice in the expansion device. You may get away with it.
If you were installing this in the dessert, without the facilities of a developed country: -
You can use the refrigerant charge to 'drive-out' the air in the tubes.
This is bad practice, but better than leaving air in the system. It involves venting some refrigerant to atmosphere, which is now considered irresponsible.
Air in the system will cause high condenser pressures. Moisture will become ice and block the small orifice in the expansion device. You may get away with it.
