7206 WETMORE AVE 2023-01-17 - Laserfiche WebLink

5.3 QRail Installation on Roof-top Installation of the QRail system on most roof-types requires that any penetrations of the roof surface be flashed in accordance with the appropriate local codes and roofing best practices. Installing Two-Rail Configuration ■ After determining the location of the array on the roof, mark the rail locations with chalk lines or other suitable method. ■ Determine the rafter locations and mark them on the E-W chalk lines. ■ For standard rail configuration installations, install roof attachments per the mount manufacturer's instructions. ■ Install the roof attachments along the chalk line per the manufacturer's instructions taking care to align the L-foot mounting point (mount bolt) as closely as possible to the intersection of the rafter and the chalk line. ■ Loosely install the T-bolts on the L-foot with the T-bolt facing the ridge of the roof. The L-feet may be aligned with the base of the "L" facing north or south. ■ Position the rail in place E-W and hold each end of the rail against the end L-feet. Insert the preassembled T-bolt rail fasteners in the end L-feet into the slot on the side of the QRail. Using a spirit level or other suitable device, set and hold the rail level at the desired height by moving the T-bolt up or down in the L-foot. ■ Using a 13 mm socket, tighten the rail fastener nuts to 16 ft-lbf (22 N-m)'. Be sure to allow the bolt head to rotate as far as possible in the T-bolt channel to ensure full engagement of the bolt head with the sides of the channel. Full engagement is confirmed when the alignment line on INCORRECT CORRECT the end of the T-bolt is vertical. ■ Proceed along the line of L-feet, inserting the T-bolts and tightening as above. 0 ■ Position the rail and L-feet N-S and secure the L-feet to the mount according to the mount manufacturer's instructions. ■ Repeat the above steps for each rail in the array. NOTE! Where site conditions and safety considerations allow, it may speed and simplify the installation to splice rails on the ground then transport them to the roof. If rails are to be spliced, the splice should be _ installed prior to installing the rails onto the L-feet or other roof attachments. See Section 5.2 for rail splicing instructions. Rail must be installed so the mount is fully engaged (edge of rail line to line with edge of mount) and maintain a Aminimum of 3/4" from the end of the rail Image 5.3.2 DANGER to center of T-bolt. T-bolt correctly positioned for insertion 1 If using non-nylon patched t-bolts tighten to 15 ft-lbf(20 N-m) B1 7.2.3-46 21 Jul-2019, Rev 4.2