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5.2 Module Cleaning Instructions
Solution Mixture:
Solution Mixture:
Solution Mixture:
Solution Mixture: clean water with low mineral amount, non-abrasive/ non-caustic detergent,
weak acid/weak alkalescent solution, or solution of PH < 10.
Cleaning
Cleaning
Cleaning
Cleaning Tool:
Tool:
Tool:
Tool: soft brush, non-conductive brush, non-abrasive sponge, non-abrasive cloth,
seamless cloth. Do not use high pressure spray.
1.
Clean module and glass surface with solution and tools fitting the above descriptions.
2.
If dirty area on glass surface which is hard to be cleaned such as oily substances or sap,
try to use commercial glass detergent, alcohol, isopropanol (IPA), or sodium
bicarbonate solution.
3.
Use clean water to rinse glass clean of all cleaning solution. Dry wet modules using a
clean and dry cloth. Do not leave stagnant water on glass surface.
5.3 Cleaning the Frame
BenQ Solar module frames include an anodic oxide coating to increase produce life. The
cleaning cycle for regular anodic oxide coatings is generally every six months. When
cleaning, be sure not to damage or scratch this coating. Dirt on the frame can generally be
cleaned off using warm, mildly soapy water and a fiber brush. Do not use abrasive cleaning
tools like steel wool or acidic/ alkaline chemicals to clean.
(Reference
：
GB 5237.2, Wrought aluminum alloy extruded profiles for architecture)
5.4 Visual inspection of the module
During regular cleaning cycles, be sure to visually inspect each module. The purpose of visual
inspection is to detect possible faults or damage. Specifically:
Possible broken glass.
Rust on the circuits and soldering of the PV cells. Normally this is due to moisture
entering the module through a breakage in the encapsulating layer during installation or
transport.
5.5 Inspecting connections and cabling
While performing semi annual maintenance, carry out the following operations:
Check the tightness and condition of the connection cable junctions.
Check the junction box sealing. Should sealing faults be observed, the items which have
been affected should be replaced and cleaned. Contact BenQ Solar for additional
information about resolving faults in module seal.
