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the racking system in compliance with all local
electrical codes and regulations. Please refer to the
racking system user instructions.
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.
· The mounting design must be certified by a regis-
tered professional engineer. The mounting design
and procedures must comply with local codes and
requirements from all relevant authorities.
· Each module must be securely fastened at a mini-
mum of 4 points on two opposite sides. The clamps
should be positioned symmetrically. Canadian Solar
Inc. recommends mounting rails with a minimum
width of 40 mm for ±2400 Pa load and a minimum
width of 60 mm for +5400 Pa / -2400 Pa load.
· Install and tighten the module clamps to the moun-
ting 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 recom-
mended to use a torque wrench for installation.
Tightening torques should respectively be within
17~23 Nm (12.5~17.0 ft-lb) for M8x1.25-Grade 8.8
(5/16”-18 Grade B7) galvanized or A2-70 stainless
steel coarse thread bolts, depending on bolt class.
The yield strength of bolt and nut should not be
less than 450 MPa.
· Use appropriate corrosion-proof fastening materi-
als. All mounting hardware (bolts, spring washers,
flat washers, nuts) should be hot dip galvanized or
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 posi-
tion ranges indicated in ANNEX B, depending on the
configuration and load.
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
MIDDLE CLAMP:
END CLAMP:
