13MAINTENANCE In order to maintain the optimumoutput of the module, please con-duct periodic inspection. It is also recommended to inspectthe electrical and mechanical con-nections annually. If you need electrical or mechanicalinspection or maintenance, it is rec-ommended to have a licensed au-thorized professional carry out theinspection or maintenance to avoidthe hazards of electric shock or inju-ry.ANTI-REFLECTION GLASS SUR-FACE CLEANING Light dirt that does not shield lightcompletely does not significantlydegrade power generation perfor-mance, but if the module surfacebecomes dirty, it may reduce outputpower. It is recommended to clean the sur-face of the module with water anda soft cloth or sponge. When cleaning with neutral glassdetergent or weak alkaline glassdetergent, it is recommended tostart with smallest area and fromthe edge of solar modules in orderto check no damage occurs to theglass. After that, clean surface of glasswith wet and clean cloth. Recommended detergent: "GlassMagiclean"1) or "Windex® Original"2)1) Glass Magiclean is a trademarkof Kao Corporation.2) 2) Windex® is a trademark ofSC Johnson & Son, Inc. It is recommended to read carefullythe manuals of detergent and un-derstand notes on usage and first-aid treatment. To remove persistent dirt, the mod-ule can be washed with a micro-fiber cloth and ethanol. Never use abrasive detergent,strong alkaline detergent, strongacid detergent or a detergent whichforms a protective layer on the sur-face of the glass to clean any part ofthe module. The performance of asolar modules may be reduced.Please be very careful since the war-ranty will not cover the damagescaused by detergents.DISCLAIMER OF LIABILITYPanasonic does not assume responsibilityand expressly disclaims liability for loss,damage, or expense arising out of, or inany way connected with installation,operation, use, or maintenance by usingthis manual.Panasonic assumes no responsibility forany infringement of patents or otherrights of third parties, which may resultfrom use of modules.No license is granted by implication orunder any patent or patent rights. Theinformation in this manual is believed tobe reliable, but does not constitute anexpressed and/or implied warranty.As part of our policy of continuous im-provement Panasonic reserves the rightto make changes to the product, specifi-cations, or manual at any time withoutprior notice.The return of any modules will not beaccepted by Panasonic unless prior writ-ten authorization has been given byPanasonic.CONTACT INFORMATIONPanasonic Eco Solutions of North Ameri-ca, Two Riverfront Plaza. 5th Floor, New-ark, NJ 07102panasonicHIT@us.panasonic.combusiness.panasonic.com/solarpanels© SANYO Electric Co., Ltd. 2018SANYO is part of the Panasonic Groupand is in charge of the manufacturingprocess for HIT®IMA001-0518-1