Location, Angle And Tilt; Electrical Interconnection - First Solar FS-380 User Manual

Modules should not be installed in a way that restricts air circulation to the backside of the module. Modules generate heat
and require adequate airflow for cooling.
Installation locations and module support structures should be selected to ensure modules and connectors (open or mated)
are never submersed in standing water. First Solar modules are tested and certified for applications involving pressures from
snow/ice/wind up to 2400 Pa (50.13 lb/ft2) when mounted properly. Snow drifts could result in a nonuniform loading of the
modules which exceeds the tested pressure. If it is expected that loads will exceed 2400 Pa (50.13 lb/ft2), it is recommended
to clear snow from modules, and ensure that ice/thaw/freeze cycles under snow drifts do not result in excessive stresses on
the module.
Heavy construction and trenching should be completed prior to module installation to minimize debris and dust.
Ensure any soil binding agents or salts used for on-site dust control do not spray, splash, or drift onto the surface of the
modules.
The UL approved design load of FS Series 3 PV Modules is 30 lb/ft2 (1436 Pa).
Maximum allowable pressure on modules may not exceed 2400 Pa (50.13 lb/ft2) without additional module support that
must be tested and approved by First Solar.
For rooftop mounting, modules must be mounted over a fire resistant roof covering rated for the application. The
recommended minimum standoff height is 3.25 in (82.55 mm). Modules used in UL Listed rooftop applications must be
installed with approved mounting systems as specified in First Solar Application Note PD-5-320 NA. If alternate mounting
means are employed, this may affect the Listing fire class ratings. The fire rating of this module is valid only when mounted
in the manner specified in the mechanical mounting instructions.
4.2 Location, Angle and Tilt
To maximize performance, modules should be located in an area that receives direct sunlight from mid-morning to
midafternoon (typically 9:00 a.m. to 3:00 p.m.). Installation must avoid locating the modules where shadows may be caused
by buildings, trees, etc.
PV performance modeling software should be used to determine the optimum orientation and tilt angle for each location.
For tilted free-field applications where there is row to row shading, it is required to install the modules in landscape
orientation. Please refer to First Solar Application Note PD-5-425-03 for additional information.
4.3 Electrical Interconnection
First Solar FS Series 3 PV Modules are pre-configured with industry standard connectors that are "touch proof" with all
live parts protected against accidental contact and protected against polarity reversal. The connectors are UV and weather
resistant from –40°C to +90°C, and rated for 1000VDC and 30A (before derating for ambient temperature).
Damaged wires, connectors, or junction boxes may cause ground faults, and associated electrical hazards,
!
including electrical shock. To avoid these conditions:
• Protect unmated connectors from dust and moisture by using sealing caps (not provided, available from connector
manufacturer).
FS Series 3 PV Module User Guide—North America | Page 6 of 13
PD-5-200-03 NA | REV 2.1 | 02771_UG_NA_24OCT12