Last revised: May 17, 2013
20
If it is necessary to clean back side of module, do not damage any components. Avoid allowing
any oily liquids such as paraffin liquid, animal oil, or vegetable oil contacting with junction box,
cable and connector. BenQ Solar PV modules can withstand snow pressure of 2400 Pa.(UL
1703) Please use soft brush lightly removing snow pileup. Do not try to remove frozen snow
and solid ice on the module (it will eventually melt off).
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. Do not use high pressure spray.
Cleaning
Cleaning
Cleaning
Cleaning Tool:
Tool:
Tool:
Tool: soft brush, non-conductive brush, non-abrasive sponge, non-abrasive cloth,
seamless cloth.
1.
Clean module and glass surface with solution and tool described as above.
2.
If dirty area on glass surface which is hard to be cleaned such as oily substances, 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 can generally be cleaned off using a suitable lubricant or warm, mild soapy water, and a
fiber brush may be used to clean any dust that may also stick to the surface. 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)
