Legrand DSBEA - Manual (Page 4)

Legrand Delta Strut Solar Systems
have passed electrical/bonding
testing per UL 2703. The following
paragraph states the scope of the
UL standards:
These requirements cover rack
mounting systems and clamping devices
for flat-plate photovoltaic modules and
panels that comply with the standard
for Flat-Plate Photovoltaic Modules
and Panels, UL 1703, intended for
installation on or integral with buildings,
or to be freestanding (i.e., not attached
to buildings), in accordance with the
National Electrical Code, ANSI/NFPA 70
and Model Building Codes.
Installation Instructions:
1. Snap chalk lines for each DS
support row. Rows should be
located at even intervals with
a maximum distance of 60”.
Actual spans should be based
upon roof loading requirements.
2. Snap a second set of chalk lines
at a right angle to position angle
support legs. Actual spacing
should be in accordance with
the drawings provided with each
DS shipment.
3. Center each pan at the
intersection of each chalk line
to position it at the base of each
angle support leg. Attach DS to
proper sized DSXXX ballast pan
with a DSPCC (clip) and bolt.
[Figure A]
4. Splice sections of DS together
using a DSSA splice (install
splices on both inside corners
of DS for a single splice). Torque
nuts to 6-8 ft/lbs (see image
above). [Figure B]
5. Load DSXXX ballast pans with
concrete ballast on both sides of
DS support row.
6. Install DSBEA (Angle Support
Assemblies). Attach rear
support to DS support first by
pivoting leg forward then secure
to DS using clamp and self-
threading screw. Attach front
clamp in the same manner.
[Figure C]
7. Install DS stringers to angle
supports. Position DS in angle
bracket saddle, then secure
with a DSPCC (Connection
Clamp) and self-threading
screw. [Figure D]
8. Splice sections of DS stringers
together using a DSSA splice
install splices on both inside
corners of DS for a single
splice).
9. Position first PV panel at the
beginning of first run, check for
position and square, then attach
to Delta Strut using DSEHDC
(End Bolt/Clamp). Torque nuts
to 6-8 ft/lbs.
10. Add next PV panel in run. Use
DSMHDC (Middle Bolt/Clamp -
Patent Pending) in areas where
two panels adjoin. Torque nuts
to 6-8 ft/lbs. [Figure E]
11. Pull feeder cabling into DS
stringer row. Connect PV cables
to feeder cables and secure
cabling to DS. Be aware that
cabling is live at this point.
12. Each solar row to be connected
to Earth as specified in NEC
using proper sized ground
conductor and UL Listed Split-
bolt lug connected to Delta
Strut. [Figure F]
Solar panels mounted to Delta Strut
on Membrane Roof with Pan Ballast
DSMHDC is spring-loaded and
stays in position while panels
are positioned.
DSMHDC
Use punched pilot hole on
either side of bracket to allow
connection clamp clearance
from cross wire.
DSPCC
Self-threading screw is
tightened using socket wrench
or power drill thru access hole.
DSBEA
DSBPW
DSPCC
Load DSXXX ballast pans
with standard 4” x 8” x 16”
concrete blocks.
Use two DSSA to splice any two
sections of Delta Strut tray.
DSSA
Use GNDSB split-bolt lug
grounding connector to
properly ground each solar
support row.
GNDSB
FIGURE A
FIGURE B
FIGURE C
FIGURE D
FIGURE E
FIGURE F
A
C
E
D