PHOTOWATT PW60HT-C-XF, Installation Manual

Page: 6 / 68

D69-P06-01 GB R6 01/07/2020 www.photowatt.com
5
Alternatively, a more accurate correction factor for
the open-circuit voltage can be calculated using
the following formula :
Cvoc = 1-
α
Voc x (25 - T)
T is the lowest expected ambient temperature at
the system installation site.
α
Voc (%/ºC) is the voltage temperature coefficient
of the selected module (refer to corresponding
datasheet).
Electrical calculations and design must be
performed by competent engineer or consultant.
4.0
UNPACKING AND STORAGE
PRECAUTIONS
•
Modules should be stored in a dry and venti-
lated environment to avoid direct sunlight and
moisture. If modules are stored in an uncon-
trolled environment, the storage time should
be less than 3 months and extra precautions
should be taken to prevent connectors from
being exposed to moisture or sunlight, like
using connector endcaps.
•
Unpack module pallets carefully, following the
steps shown on the pallet. Unpack, transport
and store the modules with care.
•
Modules must always be unpacked and ins-
talled by two people. Always use both hands
when handling modules.
•
Do not stand, step, walk and / or jump on mo-
dules under any circumstances. Localized heavy
loads may cause severe micro-cracks at cell le-
vel, which in turn may compromise module re-
liability and void EDF ENR PWT’s warranty.
•
Do not support the module by the backsheet
when handling or installing the module.
•
Do not carry modules on your head.
•
Do not drop or place objects (such as tools) on
the modules.
•
Do not lift modules by their wires or junction
box, lift them by the frame.
•
Stacks of modules should contain no more than
12 modules, and the frames should be aligned.
•
Do not place excessive loads on the module or
twist the module frame.
•
Do not use sharp instruments on the modules.
Particular care should be taken to avoid module
backsheets being damaged by sharp objects,
as scratches may directly affect product safety.
•
Do not leave modules unsupported or unse-
cured.
•
Do not change the wiring of bypass diodes.
•
Keep all connectors clean and dry at all times.
•
Do not expose the modules and its connectors
to any unauthorized chemical substance (e.g.
oil, lubricant, pesticide, etc.).
PRODUCT IDENTIFICATION
•
Each module has three identical barcodes (one
in the laminate under the front glass, the second
on the rear side of the module and the third on
the frame) that act as a unique identifier. Each
module has a unique serial number containing
13 (pre March 2013) or 14 (post March 2013)
digits.
•
A nameplate is also affixed to the rear of each
module. This nameplate specifies the model
type, as well as the main electrical and safety
characteristics of the module.