12
USER MANUAL
INSTALLATION PROCEDURE
Install the mounting screws (M8 x 16) on the body of
the supporting structure at intervals of 130 mm and
installation of the casing by tightening the bolts to torque
Nm 9. Do not over torque.
3.1.2.2 Inverter fixing screws positions
Letrika Solar micro inverter is designed to be compatible
with most standard Al frames. During frame selection few
important thing must be observed.
Al profile must have a T shaped groove for M8 or M6 nut.
M8 screw inserted into T shaped groove. If screw is
inserted it is easier to place and fix the micro inverter.
Screws must be inserted before the frame is assembled,
since they can`t be moved across frame junctions.
If M8 or M6 nuts are inserted into profile care should be
taken during screw length selection, since long screws can
damage the AL profile or they cannot fix micro inverter
adequately.
Use M8 or M6 screws and nuts. Do not use smaller or larger
screws for fixing the micro inverter
Al profile width must match micro inverter fixing tab
length. There are several possibilities how to mount
the inverter on the profile each with advantages and
disadvantages.
3.1.2 Mounting hardware compatibility
3.1.2.1 Al profile selection
