A.O. Smith 2600, 3400, 1700 Introduction, Model Identification, Abbreviations Used, Qualifications

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INTRODUCTION

This Instruction Manual covers XP Boiler models XB/XW 1000, 1300, 1700, 2000, 2600, 3400 - Series 100/101. The instructions and illustrations contained in this Instruction manual will provide you with troubleshooting procedures to diagnose and repair common problems and verify proper operation.

MODEL IDENTIFICATION

Check the rating plate affixed to the Boiler. The following information describes the model number structure:

SERIES-100/101 DESIGNATION:

• XP = Extreme Performance

MODEL (APPLICATION):

XB = Hydronic Heating Boiler

XW = Domestic Hot Water Supply Boiler

SIZE:

1000 = 920,000 Btu/hr input

1300 = 1,300,000 Btu/hr input

1700 = 1,700,000 Btu/hr input

2000 = 2,000,000 Btu/hr input

2600 = 2,600,000 Btu/hr input

3400 = 3,400,000 Btu/hr input

FUEL:

N = Natural gas

P = Propane

NOTE:

XB models are equipped with 50 psi pressure relief valve. (pump is optionally installed)

XW models are factory installed circulating pump (standard), with 125 psi pressure relief valve.

XB models can be special ordered with a factory installed pump and XW models can be special ordered without the factory installed pump. These factory configurations can also be changed in the field by installing circulation pumps and changing pressure relief valves to accommodate domestic and hydronic hot water system requirements.

Properly installed and maintained, it should give you years of trouble free service.

ABBREVIATIONS USED

Abbreviations found in this Instruction Manual include :

ANSI - American National Standards Institute

ASME - American Society of Mechanical Engineers

NEC - National Electrical Code

NFPA - National Fire Protection Association

UL - Underwriters Laboratory

CSA - Canadian Standards Association

AHRI - Air-Conditioning, Heating and Refrigeration Institute

QUALIFICATIONS

QUALIFIED INSTALLER OR SERVICE AGENCY

Installation and service of this boiler requires ability equivalent to that of a Qualified Agency, as defined by ANSI below. In the field involved. Installation skills such as plumbing, air supply, venting, gas supply and electrical supply are required in addition to electrical testing skills when performing service.

ANSI Z21.13 - CSA 4.9: “Qualified Agency” - “Any individual, firm, corporation or company that either in person or through a representative is engaged in and is responsible for (a) the installation, testing or replacement of gas piping or (b) the connection, installation, testing, repair or servicing of appliances and equipment; that is experienced in such work; that is familiar with all precautions required; and that has complied with all the requirements of the authority having jurisdiction.”

If you are not qualified (as defined by ANSI above) and licensed or certified as required by the authority having jurisdiction to perform a given task do not attempt to perform any of the procedures described in this manual. If you do not understand the instructions given in this manual do not attempt to perform any procedures outlined in this manual.

This product requires a formal Start-Up by an authorized service/ start-up provider that has been approved by the manufacturer for this specific product. Call 1-800-527-1953 to locate the nearest authorized start-up provider and arrange a factory start-up. Please provide as much notice as possible, preferably 2 weeks. Please have the model and serial number ready when you call. This start-up is required to activate the warranty and ensure safe, efficient operation.

Warranty on this product is limited and could be void in the event the unit is not installed per the instructions in this manual and/or not started up by an authorized factory trained service/start-up provider.

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Contents XP Boiler Table of Contents Important Definitions Safe INSTALLATION, USE and ServiceApprovals General Safety Model Identification IntroductionAbbreviations Used QualificationsOperating 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 Water Temperature Limit Controls Flame Sensor Water Temperature SensorsMain Power Supply Switch LOW Water Cutoff Device LwcoHydronic System Boiler Installation ConsiderationsGeneral HOT Water Boiler System General Water Line Connections Internal ContaminantsClosed Water Systems Thermal ExpansionGAS Connections Explosion HazardGAS Supply Line Sizing Corrosive Materials and Contamination SourcesVAC Power Supply Wiring Field WiringPower Supply Check LOW Voltage Control WiringSuggested Pipe Size for Multiple GAS Appliances Natural GAS Required Ability General RequirementsLocation Replacing Existing Common Vented BoilerPanels and Covers Installation ClearancesChemical Vapor Corrosion LevelingOutdoor AIR Through ONE Opening Confined Space Outdoor AIR Through TWO OpeningsFresh AIR Openings for Confined Spaces Outdoor AIR Through TWO Vertical Ducts Outdoor AIR Through TWO Horizontal DuctsAIR from Other Indoor Spaces DuctsVenting AIR Inlet Pipe Materials Vent and AIR Pipe InstallationRequirements for Installation in Canada Horizontal Installation Requirements Vertical Installation RequirementsDirect Vent Installation Requirements Venting SupportsModels 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 Termination Direct Vent Horizontal TerminationVENT/AIR Termination Locations Prepare ROOF/WALL Penetrations Direct Venting Vertical TerminationVertical ClearancesModel Vent Diameter Vent MIN. Length Vent MAX. Length Inch Condensate Neutralizer Condensate DisposalCondensate Trap XP Models AO Smith Condensate Neutralizer KIT NumbersGAS Pressure Requirements GAS Supply ConnectionsGAS Supply Pipe Connections Purging GAS Line Pipe Sizes for Propane GASCheck GAS Supply Inlet Pressure Check for GAS LeaksFilling HOT Water Supply Boiler Installation Filling and Purging of Heating Boiler InstallationBoiler Start UP and Operations Manifold Pressure ConnectionsCHECK/CONTROL Water Hardness Freeze Protection Hydronic Heating InstallationINSPECT/FILL Condensate System Water Hardness Medium 0-12 Grains PER Gallon XW ModelLighting and Operating Instructions Setting of the Test Mode AdjustmentHigh Fire Rate Overview Control SystemBurner Control System Burner Control Operation SpecificationsCommunications and Displays General Operational Sequence Lead LAG LL Master General Operation Lead LAGDomestic HOT Water Definitions FeaturesLocal Operator Interface Display System Mounting the S7999B OI Display and Power Supply Installation Instructions S7999B OI DisplayQuick Setup S7999B OI Display Common OI Display page Symbols POWER-UP ValidationStarting UP the S7999B OI Display NavigationS7999B Display page Flow Status or Home Configure ButtonLogin Configuration PasswordChange Parameter Settings KeyboardParameter Verify Example of Change ConfigurationHistory Button FAULT/ALARM HandlingData Comment Example of Hydronic History Operation Button Control Expanded Alert DetailSystem Configuration S7999B OI Display only Diagnostics ButtonHydronic Control ConfigurationSystem Synchronization S7999B OI Display only 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 Maintenance Schedules Maintenance ProceduresGeneral Maintenance Inspect Boiler AreaAIR Filter BOX Burner MaintenanceBlower Compartment Condensate Removal System Venting MaintenanceHeat Exchanger Maintenance 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.