6.5 SYSTEM GROUNDING
Upon completion of the array ground wire, bring to the rooftop junction box. Use at least a 10 AWG
ground wire for this purpose. The ground will continue down to the DC disconnect and to the inverter. The
inverter must be grounded to a ground rod. All of the Rails in an installation shall be provided with
protective earth grounding wires when installed.
Accomplishing a code compliant grounding system is critical to the safety of the system.
Continuous grounding of all modules and mounting system components is required.
1. Install outdoor rated ground lugs or ring terminals with ground wire .Use the marked ground hole on
either end of the rail.
2. Connect a minimum # 10 AWG solid conductor, copper, ground wire to the ground lug or ring terminal.
3. Land the end of the ground wire in the array junction box.
4. Run the ground wire to the DC disconnect and inverter.
5. Run the ground wire from the inverter to a ground rod.
6.6 INSTALLING MODULE SUPPORT RAILS
1. Create appropriate rail length by incorporating rail splice kit. Place splice under rails to be joined and
fasten using 4 M8 bolts. Hand tighten 5 turns and use a 13 mm socket wrench to tighten to appropriate
torque.
2. Place rail on standard slider top bracket.
3. Insert M8 bolts through AD804 dock washer and fasten to standard slider bottom bracket.
4. Use shim kit to level the height of the rail on the roof. Place shim between rail and standard slider top
bracket. Slide the shim into the bolt so that it is fully engaged.
