User manual LG SOLAR

[. . . ] For installation over a roof, is required to maintain the fire class ratings. The array frame shall be grounded in accordance with NEC Article 250. 0 Add description of Mechanical Installation Add Appendix Contents Description of change Remark 1 Safety The instructions related to safety and use indicated in the this installation manual are intended for the prevention of unexpected danger, damage, or failure. Do not scratch the coating surface of the frame. [. . . ] €¢ Conduct periodic inspection of the panels for damage to front glass, back sheet, frame, junction box, or external electrical connections. • Check electrical connections for loose connections and corrosion. €¢ Removal of dirt from the front glass can increase output. €¢ Water, ethanol or a conventional glass cleanser with a micro-fiber cloth can be used for regular washing or rinsing of the front glass to remove dust, dirt or other deposits. €¢ Aggressive and abrasive cleansers or chemicals such as alkali chemicals including ammonia based solution should not be used on cleaning the module. €¢ Always wear rubber gloves for electrical insulation while maintaining, washing or cleaning panels. €¢ Deposits of foreign material on the frame surface can be cleaned by using a wet sponge or cloth and dried in air or by using a clean chamois. €¢ Perform the wiring work by connecting the connector and wires to the stand away from the roof or ground. electrical Installation Danger • Avoid all electrical hazards when installing , wiring , operating and maintaining all panels. €¢ Do not connect panels that have different electrical properties or physical configurations in the same system. €¢ Match the polarities of cables and terminals when making the connections; failure to do so may result in damage to the panel. €¢ The rating of the over-current device shall not exceed the maximum series fuse rating marked on the name plate. €¢ The panel contains factory installed bypass diodes located inside the junction box. €¢ When installing the system, it is recommended to install a lightning rod to protect the system. 3 Electrical Installation • The junction box should not be opened. Opening the junction box will void the warranty. €¢ Panels with a suspected electrical problem should be returned to LG Electronics for inspection and possible repair or replacement as per the warranty conditions provided by LG Electronics Parallel Connection • The solar modules may be combined in parallel to produce the desired current output. €¢ When modules are combined in parallel, the total current is equal to the sum of currents from each module. €¢ The voltage of each module connected in parallel should be the same. €¢ When connecting plural strings of modules in parallel every series string or solar module must be fused prior to combining with other strings. €¢ Abide with all applicable federal, state, and local codes for additional fusing requirements and limitations on the maximum number of solar modules in parallel. Fuse 20A : 1 string • Parallel configuration is not limited if proper measures are taken to block the reverse current flow, e. [. . . ] €¢ The solar module may be mounted by using the following methods: (*Torque:8~12Nm ) • When installing modules in heavy snow areas, it is recommended to be taken an appropriate countermeasure to prevent possible damages to the lower side frame by slipping snow . Attach supporting part to the lowest modules) Mounting by using frame bolts holes • Secure the solar module to the structure by using the factory mounting holes. €¢ Four M6 stainless steel bolts, four nuts, four spring washers, and eight flat washers are recommended per solar module. €¢ The module may be fastened to a support by using both the outer and inner bolt holes of the frame. [. . . ]