Mounting Instructions - CanadianSolar CS3W-PB-AG Installation Manual

recommend using 4-14 mm² (AWG 6-12) copper wire.
Holes provided for this purpose are identified with a
grounding symbol
connection junctions must be firmly fixed.
 Do not drill any extra ground holes for convenience as
this will void the module's warranty.
 All bolts, nuts, flat washers, lock washers and other
GROUNDING METHOD: BOLT + TOOTHED NUT + CUP WASHER.
To fix the wire between the
flat washer and cup washer,
place the cup washer
(concave side up) between
the frame and the wire.
 A grounding kit containing an M5 (3/16") SS cap bolt, an
M5 (3/16") SS flat washer, an M5 (3/16") SS cup washer,
and an M5 (3/16") SS nut (with teeth) is used to attach
copper grounding wire to a pre-drilled grounding hole
on the frame (see image above). The grounding holes
are located at the upper and lower edges of the long
side frame, close to the module short sides.
 Mounting rail designs should be such to allow easy
access to the grounding holes located on the long side
of the frame, in order to enable the equipment
grounding function when required.
 Place the wire between the flat washer and the cup
washer. Ensure that the cup washer is positioned
between the frame and the wire with the concave side
up to prevent galvanic corrosion. Tighten the bolt
securely using the SS toothed nut. A wrench may be
used to do this. The tightening torque is 3-7 Nm (2.2-5.2
ft-lbs).

6.0 MOUNTING INSTRUCTIONS

The applicable regulations pertaining to work
safety, accident prevention and securing the
construction site must be observed. Workers
and third party personnel shall wear or install fall arrest
equipment. Any third party need to be protected against
injuries and damages.
EN-Rev IM/GN-BM-EN/2.5C1Copyright © January, 2023. CSI Solar Co., Ltd.
(IEC 61730-1). All conductive
relevant hardware should be made of stainless steel,
unless otherwise specified.
 Canadian Solar does not provide grounding hardware.
 The grounding method
recommended for Canadian Solar.
 The mounting design must be certified by a registered
professional engineer. The mounting design and
procedures must comply with all applicable local codes
and requirements from all relevant authorities. In
Australia and New Zealand all installations must be in
accordance to AS/NZS 3000 and AS/NZS 5033.
 The system designer and installer are responsible for
load calculations and for proper design of support
structure.
 The mechanical load tests in this manual are only valid
when coupled to mounting and support structures that
are capable of withstanding
mechanical loads. The mounting system supplier is
responsible for the strength and stability of the
mounting structure,
requirements of the relevant design specifications.
 The loads described in this manual correspond to test
loads. For installations complying with UL 61730 and IEC
61215-2:2016, a safety factor of 1.5 should be applied
for calculating the equivalent maximum authorized
design loads. Project design loads depend on
construction, applicable standards, location and local
climate. Determination of the design loads is the
responsibility of the
professional engineers. For detailed information,
please follow local structural code or contact your
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described below
Then tighten the bolt
using the toothed nut.
equal or greater
which must meet
racking suppliers and/or
www.csisolar.com
13
is
the