2020 Installation Guide

BI 7.2.3-46
Feb-2021, Rev 14
BI 7.2.3-46
Feb-2021, Rev 14
22
6. Module Installation
6.1 Module Level Power Electronic Installation
If module level power electronics (MLPE) are to be used with the array and mounted on the rails, they should be installed
prior to installing the PV modules. There are two methods for attaching these components, either the Rail / MLPE Attachment
or the Rail/ Low Mount MLPE Attachment. The two options should be selected by the installer based on site conditions,
panel clearance, and system configuration.
Rail / MLPE Attachment Installation:
•
Insert the T-bolt and flanged nut through the mounting flange of the device to be
mounted to the QRail with the T-bolt below the mounting flange.
•
Insert T-head into the top channel of the QRail rail and, using a " or 13mm wrench or
socket, tighten the nut to 192 in-lbs (22 N-m).
Rail/ Low Mount MLPE Attachment Installation:
•
Insert the T-bolt on the base of the L-Foot into the downslope channel of the QRail Rail
and tighten nut to a torque of 192 in-lbs (22 N-m).
•
Install additional bolt into the mounting flange of the device and slot in the L-Foot,
Bolt facing downward, then install the provided flange nut and torque to 192 in-lbs
(22 N-m).
Compatible MLPE:
•
Enphase: M250-72, 250-60, M215-60, C250-72, S230, S280, IQ 6, IQ 6+,
IQ IQ7, IQ 7A, IQ 7+, IQ 7X, Q Aggregator
•
Solar Edge: M1600, P300, P320, P340, P370, P400, P401, P405, P485,
P505, P600, P700, P730, P800p, P800s, P801, P850, P860, P950,
P960
Image 6.1.1
Rail/MLPE Attachment
Image 6.1.2
Rail/Low MLPE Adapter
CAUTION
Use only 20mm long T-bolts when
mounting Module Level Power
Electronics (MLPE) to top of rail.
Place the MLPE in a location on the
rail that reduces the risk of contact
with the module back sheet under
load.
Image 6.1.3
MLPE mounted to QRail with
T-bolt.