© 2021 Sunman (Zhenjiang) Co., Ltd. All rights reserved. Specifications included in this manual are subject to change without notice.
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version 2021A page 22 / 29
Maintenance and care
• A well designed solar system requires minimal maintenance; however, system performance and
reliability can be improved by taking note of the following
• Maintenance should be carried out once a year by trained personnel.
• Inspect all cables to verify that connections are tight and the cables are adequately protected
• Trim any flora that would shade and negatively affect performance
• If using the adhesive installation, conduct a pull test on a panel to ensure the proper installation
• If using the standard mounting, verify that all the mounting screws and nuts are properly torqued
• Check all the string fuses
• Replacement modules must be of the same type and follow local regulations for replacement.
• The panels are designed such that occasional rain should clean the modules clean and minimise soiling
losses. However if it is in a location that is particularly dusty and dirty, if there has been a lack of rain or
if there has been weather conditions that would significantly soil the panels, manual cleaning is
recommended. The necessity of cleaning can be done by measuring and recording the inverter’s
generation over time. For this reason it is recommended to monitor your inverter with either first party
or third party products.
• While cleaning the module, use a soft cloth or mop with a mild detergent and water. Take care to avoid
thermal shock which may damage the panel.
• Product replacement: In the event that a module is damage and needs to be replaced
Follow safety precautions noted earlier in the installation manual and local electrical procedures
Disconnect the affected array string
Disconnect the connectors of the affected module including the earth
Remove the panel. This can be done by either cutting the adhesive with a wire saw or by
following the mounting manufacture’s installation manual
Replace damaged module with new module of same characteristics
Check the open circuit voltage of the array and verify that it is within acceptable tolerances of
the other strings it is to be connected in parallel with.
Restart solar system
• Troubleshooting: If your installation is not functioning normally, please contact the installer of the
system
• Reporting technical issues or warranty claims:
Contact the installer
Contact the local distributor of the Sunman panel
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