Sensata MAGNUM ENERGY MM Series Owner's Manual page 12

Installation
steel fasteners, plated copper busbars, and a powder-coated aluminum base.
Also, the internal circuit boards are conformal coated. The above measures
are undertaken to help fi ght the harmful effects of corrosive environments.
However, the life of the inverter is uncertain if used in any of these types
of environments, and inverter failure under these conditions is not covered
under warranty.
Cool – The inverter should be protected from direct exposure to the sun or any
equipment that produces extreme heat. The ambient air temperature should
be between 32°F (0°C) and 104°F (40°C)—the inverter's output specifi cations
are rated at 77°F (25°C), so the cooler the better within this range.
Ventilated – In order for the inverter to provide full output power and avoid
over-temperature fault conditions, do not cover/block the inverter's ventilation
openings or install this inverter in an area with limited airfl ow. Allow as much
clearance around the inverter's intake and exhaust ventilation openings as
possible (Figure 1-3, Items 12 & 13). At the minimum, allow an airspace
clearance of 3" (7.5 cm) on all sides to provide adequate ventilation.
If installed in an enclosure, a fresh air intake opening must be provided
directly to the front side (intake vent) and an exhaust opening on the back
side (exhaust vent) of the inverter. This will allow cool air from the outside
to fl ow into the inverter, and heated air to exit away from the inverter and
the enclosure. When mounted in an enclosed compartment, airfl ow must
be at least 59 cfm in order to maintain no more than a 68°F (20°C) rise in
compartment temperature. Minimum clearances can be reduced if airfl ow is
increased, but in no case should clearance around the inverter be less than
2" (5 cm) on all sides.
Safe – Keep any fl ammable/combustible material (e.g., paper, cloth, plastic,
etc.) that may be ignited by heat, sparks, or fl ames at a minimum distance
of 2 feet (60 cm) away from the inverter. Do not install this inverter in any
area that contains extremely fl ammable liquids like gasoline or propane, or
in locations that require ignition-protected devices.
Close to the battery bank – As with any inverter, it should be located as
close to the batteries as possible. Long DC wires tend to lose effi ciency and
reduce the overall performance of an inverter. However, the unit should not
be installed in the same compartment as the batteries or mounted where it
will be exposed to gases produced by the batteries. These gases are corrosive
and will damage the inverter; also, if these gases are not ventilated and if
allowed to collect, they could ignite and cause an explosion.
Accessible – Do not block access to the inverter's remote control and
accessory ports. Also allow enough room to access the AC and DC wiring
connections, as they will need to be checked and tightened periodically.
Mounting Orientation – To meet regulatory requirements, the MM Series
inverter can only be mounted on a horizontal surface (shelf or table) or a
vertical surface (wall or bulkhead) either right-side up or up-side down, as
shown in Figure 2-1. The inverter must be mounted on a "non-combustible"
surface, and this surface and the mounting hardware must be capable of
supporting at least twice the weight of the inverter. After determining your
mounting position, use the base of the inverter's chassis as a template to
mark your mounting screw locations. Remove the inverter, and then drill pilot
holes into the mounting surface.
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