©Navien America Inc. 2010 CH series service Manual6Version 1.0Navien WarrantyGENERALAPPLICABLE WARRANTY PERIODSPeriod of CoverageHeat Exchanger10 years 5 yearsAll other Parts and ComponentsNavien America, Inc. (Navien) warrants this Navien gas condensing combination waterheater / boiler and its component parts to be free from defects in materials and workmanship ,under normal use and service, for the Applicable Warranty Period. At its option, Navienwill replace the defective component part(s), in accordance with the terms of this LimitedWarranty, if it fails in normal use and service during the Applicable Warranty Period. Thereplacement component part(s) must be Navien Original factory component part(s). Thereplacement component part(s) will be warranted only for the remaining portion of theoriginal component part’s Applicable Warranty Period.EFFECTIVE DATEThe Effective Date of warranty coverage (the beginning of the Applicable Warranty Periods)is the date of purchase of this combination water heater / boiler, if properly registered.HEAT EXCHANGER WARRANTYThe Applicable Warranty Period for a CH series Heat Exchanger failure installed in aResidential application is Ten (10) years from the Effective Date.PARTS WARRANTY (excluding heat exchanger)The Applicable Warranty Period for a CH series Part(s) failure installed in a Residentialapplication is Five (5) years from the Effective Date.Proof of purchase is required to obtain warranty service. You can show proofof purchase with dated sales receipt, by completing and mailing the enclosedwarranty registration card within 30 days of purchasing the product or by registeringonline at www.navienamerica.com