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12
Array Configurations
At this time, the solar array can be assembled only in a rectangular filled configuration (Figure 7).
Roof vents, skylights & other obstructions in the field of the solar array need to be relocated.
Figure
7: DecoTech™ S olar Array configuration
Grounding
The parts of DecoTech™ Solar Array that are likely to be energized during a ground fault are grounded
with the use of a #12 or #10 AWG bare solid copper conductor strung throughout the solar array (Figure
11, page 14). The DecoTech™ Solar Module Assembly must be electrically grounded through the use of a
UL 2703 listed WEEB® Grounding Lug (WEEB®-LUG-8.0) and WEEB® Washer. For each solar module
assembly, the WEEB® Grounding Assembly (shown in Figure 18, page 23) and the MLPE are mounted onto
the MLPE foot using the MLPE mounting hardware. The WEEB® Washer is placed in between the MLPE
foot & the WEEB® grounding lug. The top flashings are electrically grounded through the use of a UL-
approved DynoRaxx® DynoBond™ Grounding Clip (Figure 12, page 14). An S-8 split-bolt connector is a UL-
approved connector used to attach the DynoBond™ clip to the copper grounding wire. Tighten all the
components to the recommended minimum torque values shown in Table 2 below. All grounding screws
are for single use only. The photovoltaic system grounding shall comply with the NEC, and is the
responsibility of the installer.
Parts
Tightening torque
Solar Feet & MLPE Feet (Figure 8, next page)
40 inch pounds
MLPE Mounting Hardware (Figure 10, next
page)
10 feet pounds (120 inch
pounds)
S-8 Split-Bolt Connector (Figure 13, page 14)
80 inch pounds
WEEB® Terminal Screw (Figure 11, page 14)
7 feet pounds (84 inch
pounds)
Table 2: Torque table for grounding
