A.O. Smith 2000, 3400, 2600 Safe INSTALLATION, USE and Service, Approvals, Important Definitions

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SAFE INSTALLATION, USE AND SERVICE

The proper installation, use and servicing of this boiler is extremely important to your safety and the safety of others.

Many safety-related messages and instructions have been provided in this manual and on your boiler to warn you and others of a potential injury hazard. Read and obey all safety messages and instructions throughout this manual. It is very important that the meaning of each safety message is understood by you and others who install, use, or service this boiler.

This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.

 

DANGER indicates an imminently

DANGER

hazardous situation which, if not avoided,

will result in injury or death.

 

 

 

WARNING indicates a potentially hazardous

WARNING

situation which, if not avoided, could result

 

in injury or death.

 

CAUTION indicates a potentially hazardous

CAUTION

situation which, if not avoided, could result in

minor or moderate injury.

 

 

 

 

CAUTION used without the safety alert

CAUTION

symbol indicates a potentially hazardous

situation which, if not avoided, could result in

 

property damage.

 

 

All safety messages will generally tell you about the type of hazard, what can happen if you do not follow the safety message, and how to avoid the risk of injury.

The California Safe Drinking Water and Toxic Enforcement Act requires the Governor of California to publish a list of substances known to the State of California to cause cancer, birth defects, or other reproductive harm, and requires businesses to warn of potential exposure to such substances.

This product contains a chemical known to the State of California to cause cancer, birth defects, or other reproductive harm. This boiler can cause low level exposure to some of the substances listed in the Act.

IMPORTANT DEFINITIONS

Gas Supplier: The Natural Gas or Propane Utility or service who supplies gas for utilization by the gas burning appliances within this application. The gas supplier typically has responsibility for the inspection and code approval of gas piping up to and including the Natural Gas meter or Propane storage tank of a building. Many gas suppliers also offer service and inspection of appliances within the building.

APPROVALS

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Contents XP Boiler Table of Contents Safe INSTALLATION, USE and Service ApprovalsImportant Definitions General Safety Qualifications IntroductionModel Identification Abbreviations UsedOperating Characteristics Dimensions and Capacity DataDouble Heat Exchanger Boiler Rough in Dimensions Double Electrical Requirements RatingsXB Models FLOW, Head and Temperature Rise FLOW, Head and Temperature RiseSingle Heat Exchanger Boiler Components Features and ComponentsDouble Heat Exchanger Boiler Components Low water cutoff board and sensor probe Lwco Component DescriptionControl Components LOW Water Cutoff Device Lwco Flame Sensor Water Temperature SensorsWater Temperature Limit Controls Main Power Supply SwitchBoiler Installation Considerations GeneralHydronic System Thermal Expansion Internal ContaminantsHOT Water Boiler System General Water Line Connections Closed Water SystemsGAS Connections Explosion HazardGAS Supply Line Sizing Corrosive Materials and Contamination SourcesLOW Voltage Control Wiring Field WiringVAC Power Supply Wiring Power Supply CheckSuggested Pipe Size for Multiple GAS Appliances Natural GAS Replacing Existing Common Vented Boiler General RequirementsRequired Ability LocationLeveling Installation ClearancesPanels and Covers Chemical Vapor CorrosionConfined Space Outdoor AIR Through TWO Openings Fresh AIR Openings for Confined SpacesOutdoor AIR Through ONE Opening Ducts Outdoor AIR Through TWO Horizontal DuctsOutdoor AIR Through TWO Vertical Ducts AIR from Other Indoor SpacesVenting Vent and AIR Pipe Installation Requirements for Installation in CanadaAIR Inlet Pipe Materials Venting Supports Vertical Installation RequirementsHorizontal Installation Requirements Direct Vent Installation RequirementsModels Vent KIT Numbers XB/XW TEE Models Vent KIT Numbers XB/XW Rain CAPModels Vent AIR Intake XB/XW KIT Numbers Rain CAP Elbow Models Vent AIR Intake XB/XW KIT Numbers TEE ElbowDirect VENT, Vertical Vent Horizontal Intake Power Vent Termination Clearances Sidewall Power VentDirect Vent Termination Clearances Sidewall Direct VentBELOW. Keep Clear of ALL Obstructions Direct Vent Horizontal Termination VENT/AIR Termination LocationsTermination Clearances Direct Venting Vertical TerminationPrepare ROOF/WALL Penetrations VerticalModel Vent Diameter Vent MIN. Length Vent MAX. Length Inch XP Models AO Smith Condensate Neutralizer KIT Numbers Condensate DisposalCondensate Neutralizer Condensate TrapGAS Supply Connections GAS Supply Pipe ConnectionsGAS Pressure Requirements Check for GAS Leaks Pipe Sizes for Propane GASPurging GAS Line Check GAS Supply Inlet PressureManifold Pressure Connections Filling and Purging of Heating Boiler InstallationFilling HOT Water Supply Boiler Installation Boiler Start UP and OperationsWater Hardness Medium 0-12 Grains PER Gallon XW Model Freeze Protection Hydronic Heating InstallationCHECK/CONTROL Water Hardness INSPECT/FILL Condensate SystemLighting and Operating Instructions Setting of the Test Mode AdjustmentHigh Fire Rate Control System Burner Control SystemOverview Specifications Communications and DisplaysBurner Control Operation General Operational Sequence Lead LAG Domestic HOT WaterLead LAG LL Master General Operation Features Local Operator Interface Display SystemDefinitions Installation Instructions S7999B OI Display Quick Setup S7999B OI DisplayMounting the S7999B OI Display and Power Supply Navigation POWER-UP ValidationCommon OI Display page Symbols Starting UP the S7999B OI DisplayS7999B Display page Flow Status or Home Configure ButtonKeyboard Configuration PasswordLogin Change Parameter SettingsParameter Verify Example of Change ConfigurationFAULT/ALARM Handling Data CommentHistory Button Example of Hydronic History Operation Button Control Expanded Alert DetailSystem Configuration S7999B OI Display only Diagnostics ButtonConfiguration System Synchronization S7999B OI Display onlyHydronic Control Code Description Recommended Troubleshooting Lockout Codes TroubleshootingReserved ILK OFF Flame Operation Faults 105 Flame detected out of sequence Adjust the LF switch while in this position Inspect the Combustion Pressure Switch to make Code Description Recommended Troubleshooting Lockout Codes Code Description Recommended Troubleshooting Lockout Codes Allowed Code DescriptionFan Parameter Errors Code Description Steam 20mA water temperature setting was invalid Abnormal Recycle Hardware flame bias delta high Eeprom DHW Plate Heat Exchanger Errors Inspect Boiler Area Maintenance ProceduresMaintenance Schedules General MaintenanceBurner Maintenance Blower CompartmentAIR Filter BOX Venting Maintenance Heat Exchanger MaintenanceCondensate Removal System Handling Ceramic Fiber Materials Replacement PartsInlet DIA Piping DiagramsStorage Tank AOS Conditions and Exceptions Limited Warranty

3400, 1700, 2000, 2600 specifications

A.O. Smith, a leader in water heating solutions, has developed a range of high-efficiency water heaters that cater to various residential and commercial needs. Among their stellar offerings are the A.O. Smith 2600, 2000, 1700, and 3400 models, each boasting impressive features, cutting-edge technologies, and excellent energy efficiency.

The A.O. Smith 2600 model is designed for those who require a robust water heating solution with a capacity to handle high-demand scenarios. It utilizes a highly efficient heating element that provides rapid heating and maintains a steady output. The built-in smart control system allows users to monitor temperature settings and track energy consumption, ensuring optimal performance.

Next in line, the A.O. Smith 2000 is perfect for households that require a reliable and efficient water heater without compromising on space. This compact model integrates advanced thermal insulation that minimizes heat loss, coupled with a powerful heating element that ensures quick heating times. Its sleek design makes it suitable for various installations while maintaining aesthetic appeal.

The A.O. Smith 1700 model caters specifically to smaller residential needs but retains features that align with higher-end models. It incorporates state-of-the-art safety features, including overheat protection and a pressure relief valve. Its lightweight structure and ease of installation stand out, making it a recommended choice for those looking for efficient heating without extensive modifications to their plumbing systems.

Lastly, the A.O. Smith 3400 is a powerhouse designed for larger commercial applications. This model offers exceptional heating capacities and includes advanced technologies such as a digital display for easy monitoring and control. The robust build is complemented by a high-performance insulation system that significantly reduces energy consumption and operating costs.

All A.O. Smith water heaters, including the 2600, 2000, 1700, and 3400 models, feature corrosion-resistant materials ensuring longevity and durability. With their commitment to quality and innovation, A.O. Smith continues to provide water heating solutions that meet modern demands while emphasizing energy efficiency and user convenience. Whether for residential or commercial use, each model represents the pinnacle of reliability and performance in water heating technology.

In conclusion, A.O. Smith has established itself as a reliable choice for water heaters, with models that cater to diverse needs without compromising on efficiency or quality.