Outback Power Systems FLEXmax Extreme Owners Manual - Manual (Page 10)

Installation
8 900-0150-01-00 Rev A
Mounting the Charge Controller
The FLEXmax Extreme must be mounted upright on a wall or similar flat upright mounting surface. It must be
mounted at least 36” (91.4 cm) above the ground or floor. No other mounting positions are allowed. Installation
in shade is recommended.
Clearance requirements are a minimum of 6“ (15.2 cm) above and below the controller.
Two mounting methods are available. The first method uses keyhole slots on the back of the controller for
hanging directly on a wall. This method is useful for a standalone installation.
Figure 3 Mounting the Charge Controller (keyhole)
To mount using keyhole slots:
1. Use two slotted #14 wood screws. The mounting surface must be
strong enough to support the weight of the FLEXmax Extreme.
NOTE: OutBack is not responsible for damage resulting from
inadequate mounting hardware or preparation.
2. Mark the locations where the screws will be inserted on the surface.
Space them according to the keyhole slot locations (see below).
NOTE: The brackets included with the controller have holes with
the same spacing which can be used as a marking template.
3. Using the appropriate tools, set the screws into the surface
(see below). The heads should protrude by 1/8” (0.3 cm).
4. Hang the FLEXmax Extreme by placing its back against the
mounting surface and aligning the keyhole slots with the screws.
Settle the controller so that the screws are seated in the narrow end
of each slot.
5. Secure the base of the controller to the surface by inserting two ¼”
hex head lag screws into the holes shown to the left.
Slot spacing 7.9” (20.1 cm)
Hole spacing 5.5” (13.9 cm)
Distance
16.9” (42.9 cm)
Keyhole slots
Securing holes
Mounting is complete. Proceed to charge controller wiring or other installation steps.