Outback Power Systems PV Ground-Fault Detector Interrupter (GFDI) Installation - Manual (Page 6)

5
Installation Instructions
• Insert the GFDI into the breaker mounting bracket.
• Insert and hand-tighten the GFDI’s mounting screws.
• CAUTION — overtightening can damage the GFDI.
• With all system power off, attach the ground and negative wires to
their respective bus bars and to the back of the GFDI.
• The ground wire goes to the top of the 0.5 amp breaker.
• The negative wire goes to the bottom of the same breaker.
(See Figures 1 and 2.)
• With all system power off, make the connections to the individual
80-amp breakers. The specifics will vary with the GFDI model and
installation type.
• Attach the “Battery +” wire from one charge controller to the top of
one 80-amp breaker. (See Figure 2.)
• Attach a wire from your battery positive breaker or battery positive
bus bar to the bottom of the same 80-amp breaker. (See Figure 2.)
• Repeat these steps for additional charge controllers. The GFDI
should have one 80-amp breaker for each controller.
• Torque all GFDI wires to 35 inch-pounds/4.0 Nm.
Figure 1. Placement of
Ground and Negative Wires
GFDI
0.5 Amp
Breaker