BTH 120 Service Handbook Brandname: A.O. Smith Category: Water Heater Total Pages: 65 Table of contents BthHandbook2ExteriorClearances5MinimumAirForCombustion6Make-UpAir7Make-UpAir8Make-UpAir9InsufficientMake-UpAir10ContaminatedAir11Condensation12Venting13BthSequenceofOperation14MultipleUnit-WaterPiping15CycloneBth16CycloneBth17AfterTankIsSatisfied18Troubleshooting19Troubleshooting20Troubleshooting21Troubleshooting22Troubleshooting23Troubleshooting24Troubleshooting25Troubleshooting26Troubleshooting27Troubleshooting28Troubleshooting29Troubleshooting30Troubleshooting31ComponentPartInformation32PressureSwitches33WiringConnections34ServicingAids35QuestionsandAnswers36BthErrorCodes37ServiceChecklist38
BTH 120 Service handbook Brandname: A.O. Smith Category: Water Heater Total Pages: 56 Table of contents TableofContents2Introduction3InstallationConsiderations4FeaturesAndComponents5FaultAndWarningCodes8