EN-Rev IM/GN-AM-EN/A5 Copyright © June 2016. Canadian Solar Inc.
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shock hazard due to leakage currents, and the
risk of shock is increased when modules are wet.
Before cleaning, thoroughly inspect modules for
cracks, damage, and loose connections.
· The voltage and current present in an array during
daylight hours are suicient to cause a lethal
electrical shock.
· Ensure that the circuit is disconnected before
starting the cleaning procedure as contact with
leakage of electrically active parts can result in
injury.
· Ensure that the array has been disconnected to
other active components (such as inverter or
combiner boxes) before starting with the cleaning.
· Wear suitable protection (Clothes, insulated gloves,
etc.).
·
Do not
immerse the module, partially or totally, in
hANDLINg NOTICE
· Use a proper cleaning solution and suitable
cleaning equipment.
·
Do not
use abrasive or electric cleaners on the
module.
· Particular attention should be taken to avoid the
module backsheet or frame to come in contact
with sharp objects, as scratches may directly affect
product safety.
·
Do not
use de-greasers on the module.
·
Do not
use cleaning corrosive solutions containing
acid, alkali, acetone, or industrial alcohol.
· Canadian Solar Inc. recommends to avoid rotating
brush cleaning method, as it can lead to the
formation of micro cracks.
· Dirt must never be scraped or rubbed away when
dry, as this will cause micro-scratches on the glass
surface.
OpERATION pREpARATION
· Noticeable dirt must be rubbed away by gentle
cleaning implement (soft cloth, sponge or brush
with soft bristles).
· Ensure that brushes or agitating tools are not
abrasive to glass, EPDM, silicone, aluminum, or
steel.
· Conduct the cleaning activities avoiding the hottest
hours of the day, in order to avoid thermal stress
on the module.
Recommended the following to be used:
· Water with low mineral content
· Near neutral PH water
· The maximum water pressure recommended
is 4 MPa (40 bar)
CLEANINg METhODS
Method A: Compressed Air
Canadian Solar Inc. recommends cleaning the soft
dirt (like dust) on modules just with air pressure. This
technique can be applied as long as the method is
efficient enough considering the existing conditions.
Method B: wet cleaning
If excessive soiling is present on module surface,
a non-conductive brush, sponge, or other mild
agitating method may be used with caution.
· Ensure that any brushes or agitating tools are
constructed with non-conductive materials to
minimize risk of electric shock and that they are
not abrasive to the glass or the aluminum frame.
· If grease is present, an environmental friendly
cleaning agent may be used with caution.
AMENDMENT EDITIONS AND DATES
· The first edition Rev A1 is released in Apr, 2014.
· The second edition Rev A2 is released in Dec, 2014
· The third edition Rev A3 is released in Aug, 2015
· The fourth edition Rev A4 is released in Mar, 2016
· The fifth edition Rev A5 is released in June, 2016
CANADIAN SOLAR INC.
545 Speedvale Avenue West, Guelph, Ontario, Canada N1K 1E6
www.canadiansolar.com
water or any other cleaning solution.
