What type of electric outlet should the unit be connected to during installation?

The type of electric outlet that should be used during the installation of a unit is the unswitched electric outlet. An unswitched outlet is crucial because it ensures that the appliance receives a constant supply of power without the risk of being accidentally turned off by a switch. This is particularly important for equipment that requires reliable operation, such as water treatment systems, where intermittent power can lead to malfunctions or reduce efficiency.

In many instances, devices such as water softeners or filtration systems need to run continuously or at specified intervals and cannot have their power interrupted inadvertently. A switched outlet, on the other hand, can easily be turned off, leading to potential service interruptions. Ground fault circuit interrupter (GFCI) outlets and standard outlets may also provide power, but they do not address the specific requirement of ensuring a continuous supply without the risk of being turned off by a switch, making the unswitched outlet the most appropriate choice for such installations.