PHOTOWATT PW60HT-C-XF, Installation Manual

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D84-P06-01 GB R2 28/07/2020 www.photowatt.com
7
RELIABLE VENTILATION
•
Bifacial modules use direct, reflected, or dif-
fuse sunlight on the backside to generate ad-
ditional power. Therefore, bifacial modules are
not suggested to be used in building attached
photovoltaic systems (BAPV). If BAPV, or similar
mounting is still required, sufficient clearance
of at least 10 cm (3.94 in) between the module
and the mounting surface needs to be provided
to allow cooling air to circulate around the back
of the module. This also allows condensation or
moisture to dissipate.
•
According to UL 1703, if any other specific clea-
rance required for maintaining a system fire ra-
ting should prevail. Detailed clearance require-
ments pertaining to system fire ratings must be
provided by your racking supplier.
5.1
MODULE WIRING
CORRECT WIRING SCHEME
•
Ensure that the wiring is correct before starting
up the system. If the measured open circuit vol-
tage (Voc) and short-circuit current (Isc) differ
substantially from the specifications, this indi-
cates that there is a wiring fault.
•
Do not connect different connectors (brand
and model) together.
•
When modules have been pre-installed but the
system has not been connected to the grid
yet, each module string should be kept under
open-circuit conditions and proper actions
should be taken to avoid dust and moisture pe-
netration inside the connectors.
•
For PW72LHT, PW72HT and PW60HT series mo-
dules, EDF ENR PWT offers several cable length
options to match various system configura-
tions, which are shown in table 2:
•
On below figures, bold lines represent cable
installation pathways, while + and - connector
correspond to positive and negative module
terminals respectively.
•
Cables should always be fastened on module
frames or mounting rails, in order to avoid sha-
ding on module rear side.
•
In case where a cable connection method not
included in below table is used, please confirm
suitable cable length with EDF ENR PWT’s sales
representative.