Magnum Energy MP Extension Box (MPX Series) User Manual

Page 18

3.0 Installation

3.1.7 Attaching the Inverter Hood

The inverter hood is designed to prevent objects from falling inside the top vents of the inverter,

which can cause damage. For installations where the inverter is mounted on a vertical surface (DC

terminals facing down) — such as a MP enclosure — the hood must be mounted above the inverter

in order to meet UL regulatory requirements.

Info: The inverter hood does not mount to the inverter chassis, it must be mounted to the

backplate/wall. Mounting bolts are included if a Magnum backplate has been purchased.

If no backplate, the installer must supply the bolts – the mounting slots on the hood will

accept up to a maximum 1/4” screw/bolt.
CAUTION: The inverter hood is not to be used as a drip shield to prevent water drops

from entering the inverter.

Refer to Figures 3-13 & 3-14 to install the hood. The bottom edge of the hood must be mounted

fl ush against the top of the inverter. This is the optimal position for minimizing the risk of objects

falling into the inverter, and at the same time providing the clearance needed for air fl ow from the

top vents of the inverter. Do not place anything on top of the inverter hood that might cause it to

bend downward, or place anything on the sides that might restrict air fl ow through the inverter.
1. Screw two bolts/screws halfway into the backplate/wall where the hood will be mounted.
2. Place the inverter hood on these screws, and then tighten securely.

Figure 3-12, Mounting Multiple Inverters on the MPX

Note:

Prior to mounting,

connect the AC input and
output wires within each
new inverter (refer to your
inverter owner’s manual),
and then route the wiring
through the MPX.

IMPORTANT: If the inverter is ever removed from the top of the MPX for service and the

AC bypass breaker is used to continue to power the inverter loads, attach the knockout plate

(provided with the MP enclosure) to the top of the MPX for use as a safety plate to prevent

accidental access to live electrical circuits inside the MPX.

WARNING:

If the knockout plate is used as a safety plate, the battery cables from the

top of the DC disconnect must be prevented from touching the metal knockout plate or

a short circuit to the battery bank may occur – causing lethal currents. Either remove

these cables or isolate them (i.e., using electrical tape/rubber caps), do not rely ONLY

on turning the DC disconnect switch to OFF.