14 Ver. 0.2Commissioning & MaintenanceAll work in commissioning and maintenance of a system must be performed by a qualified PV technician.Bypass Diode- Modules have bypass diodes integrated in the junction box and are wired in parallel with series string.In the unlikely event of diode failure, it is recommended to contact with NSP or local agent forchecking / replacing bypass diodes.- Be cautious of electricity shocks while commissioning and maintaining the solar power system.Testing- Test all electrical and electronic components of the system before commissioning.Maintenance- Clean the module glass when it’s dirty, use water and a soft sponge or cloth for cleaning. A mild,non-abrasive cleaning agent can be used to remove sticky dirt.- Check the electrical and mechanical connections regulatory to verify they are clean, secure andundamaged.Disclaimer of Liability- The use of this manual, the installation conditions or methods, operation, use and maintenance of PVmodules are beyond NSP’s control, NSP does not accept responsibility and expressly disclaims liabilityfor loss, damage or expense arising out of or in any way connected with such installation, operation,use or maintenance.- No responsibility is assumed by NSP for any infringement of patents or other rights of third parties,which may result from use of the PV modules. No license is granted by implication or under any patentor patent rights.- This manual information is based on NSP’s knowledge and experience and is believed to be reliable.Such information including product specification (without limitations) and suggestions do notconstitute a warranty, expresses or implied. NSP reserves the right to change the manual, the PVproduct, the specification or product information sheet without prior notice.