Installation and Operation Manual (Rev E)
SGI Series Inverters
DOCR-060371
4
2.0 Site Preparation and Inverter Placement
The inverter is comprised of a rainproof industrial enclosure containing electrical and electronic
components and AC and DC integrated disconnecting means.
NOTE:
If the inverter is mounted outside, ensure that the enclosure doors remain
closed during the installation process in case of rain or snow. Leaving these doors
open during installation will void the warranty.
NOTE:
If the inverter is to be stored outdoors before being installed and
commissioned, care must be taken to avoid condensation inside the unit. Removing
the protective shipping wrap and placing a small space heater inside the unit can help
minimize the amount of condensation that can occur during onsite outdoor storage.
Criteria for device mounting:
Because the power electronics are within the rainproof main enclosure, the inverter can be
mounted outdoors.
The maximum life for the inverter can be achieved by mounting the unit in a clean, dry and
cool location.
For optimal electrical system efficiency, use the shortest possible AC and DC cables and use
the maximum allowable cable size.
Avoid installation in close proximity to people or animals, as there is an audible high-
frequency switching noise.
Install the inverter in an accessible location following NEC codes for enclosure and
disconnect door clearances and proximity to other equipment.
Although the inverter is designed to function at full power continuously in up to 50
o
C
ambient temperatures, for optimal inverter life and performance, do not mount the
inverter in direct sunlight, especially in hot climates. If the unit must be mounted in direct
sunlight a metal sun-shield is recommended. It is recommended that the inverter is
mounted on the north side of buildings or on the north side of a ground mount PV array.
