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Canadian Solar Inc. recommends mounting rails
with a minimum width of 40mm for ±2400Pa load
and a minimum width of 60mm for +5400 Pa
/-2400Pa load.
· Install and tighten the module clamps to the
mounting rails using the torque stated by the
mounting hardware manufacturer. System
designer and installer are responsible for load
calculations and for proper design of support
structure. It is recommended to use a torque
wrench for installation. Tightening torques should
respectively be within 17~23 Nm (12.5~17.0 ft-lb)
(23 Nm (17.0 ft-lb) is recommend) for M8x1.25-
Grade 8.8 coarse thread bolts, depending on bolt
class.
· Use appropriate corrosion-proof fastening
materials. All mounting hardware (bolts, spring
washers, flat washers, nuts) should be made with
stainless steel.
· Clamp material should be anodized aluminum
alloy or steel of appropriate grade. One buffer
rubber material (Recommended material is EPDM)
must be added between the clamp and the glass.
· Canadian Solar Inc. warranty may be void in cases
where improper clamps or unsuitable installation
methods are found. When installing clamps, take
measures so as:
1. Not to bend the laminate excessively.
2. Not to cast shadow on the cells.
3. Not to damage or scratch the surface of the glass.
4. To ensure the clamps overlap the module by
13 mm to 15 mm.
5. To ensure the thickness of the clamps is at
least 3 mm.
· Clamp positions are of crucial importance for the
reliability of the installation, the clamp centerline
must only be positioned within the authorized
position ranges indicated in ANNEX B, depending
on the configuration and load.
· The module is only considered to comply with
UL1703 when mounted as specified in the inst-
ructions in ANNEX B. Any module without a frame
(laminate) shall not be considered to comply with
the requirements of UL 1703 unless the module is
mounted with hardware that has been tested and
evaluated with the module under this standard or
by a field Inspection certifying that the installed
module complies with the requirements of UL
1703.
· Double glass modules can be mounted to a sup-
port structure by means of clamps. For recommen-
ded installation methods and load, please refer to
ANNEX B and contact your local representative for
further information. Failure to use a recognized
installation method will void Canadian Solar Inc.
warranty.
7.0
MAINTENANCE
· Regular maintenance is required to keep modules
clear of snow, bird droppings, seeds, pollen, lea-
ves, branches, dirt spots, and dust.
· Modules with sufficient tilt (at least 15°), generally
do not
require cleaning (rain will have a self-
Nut
Rail
Glass
Spring washer
Flat washer
Rubber
Top Middle Clamp
Bolt Bottom Middle Clamp
Nut
Rail
Glass
Spring washer
Flat washer
Rubber
Top End Clamp
Bolt
Bottom End Clamp
