When the customers pick the spa jacuzzi up, some customers need to use single-phase electricity, and some customers need three-phase electricity for outdoor spa installation.
If the customer does not inform, all outdoor spa hot tubs will set to single-phase before leaving factory. For more environmental protection and energy saving, we recommend three-phase power for guests.
Now we teach you step by step, how to change the power supply of USA Balboa BP6013 control box from single phase to three phases.