Xantrex Technology PROsine 2.0 user manual Connecting AC Output Wiring, Connecting the DC Cables

Series Operation

Connecting AC Output Wiring

To connect each PROsine to the load panel:

1.Connect 2-conductor-plus-ground cable to the Line 1 PROsine’s AC Output line and neutral conductors, and connect the cable’s ground wire to one of the output ground screws on the PROsine.

2.Run the 2-conductor-plus-ground cable to the load panel and connect:

•The Line 1 conductor to the panel’s Line 1 input breaker

•The neutral to the panel’s neutral bus

•The ground to the panel’s ground bus

3.Repeat steps 2 and 3, connecting the Line 2, neutral, and ground from the Line 2 PROsine to the load panel’s Line 2 input breaker, neutral bus, and ground bus.

Configuring the Inverter Output Neutral Bonding

Electrical codes require that you unbond the neutral-ground connection of one of the PROsines. Otherwise when the units are inverting, they will both connect the neutral to safety ground through a relay. Installation codes stipulate that the neutral be connected to safety ground in one—and only one—location.

To unbond the neutral in one of the PROsines:

1.Select one PROsine in which to unbond the neutral.

Generally, it does not matter which PROsine you select, but your system may dictate that one unit in particular be unbonded.

2.Locate and remove the neutral-ground bonding screw at the back of the AC wiring compartment.

3.Install the screw in the extra hole (identified as the position in which the neutral is NOT automatically bonded) so it is available for future use if you change your system.

4.Tighten the screw so it will not back out over time.

5.Leave the other PROsine’s neutral-ground bonding screw in the automatic bonding position.

Connecting the DC Cables

WARNING: Fire hazard

Make sure all DC connections are tight to a torque of 216–240 inch-pounds (24–27Nm). Loose connections will overheat.

7–6 445-0089-01-01