A.O. Smith 1700, 3400, 2600 Direct Vent Horizontal Termination, VENT/AIR Termination Locations

Page 34

DIRECT VENT: HORIZONTAL TERMINATION

Gas vent extending through an exterior wall must not terminate adjacent to a wall or below building extensions such as eaves, parapets, balconies, or decks. Failure to comply could result in severe personal injury, death, or substantial property damage.

Installation must comply with local requirements and with the National Fuel Gas Code, ANSI Z223.1 for U.S. installations or CSA B149.1 for Canadian installations.

VENT/AIR TERMINATION LOCATIONS:

Follow these guidelines for locating the vent/air terminations:

1.Make sure the total length of piping for vent or air do not exceed the limits mentioned in Table 14 and Table 15 on

Page 36.

2.Consider the surroundings when terminating the vent and air:

•While positioning the vent termination, ensure vapors will not damage nearby shrubs, plants or air conditioning equipment.

•The flue products will form a noticeable plume as they condense in cold air. Avoid areas where the plume could obstruct window views.

•Prevailing winds could cause freezing of condensate and water/ice buildup where flue products impinge on building surfaces or plants.

•Do not allow accidental contact of flue products with people or pets.

•Do not locate the terminations near building corners, near adjacent buildings or surfaces, window wells, stairwells, alcoves, courtyards, or other recessed areas, where wind eddies could affect performance or cause recirculation .

•Sidewall vent and air inlet terminations must terminate in the same pressure zone.

•Do not terminate above any door or window, where condensate can freeze, causing ice formations.

•Locate or monitor the vent to prevent condensate damage to exterior finishes.

3.The air piping must terminate in a down-turned elbow, using a mesh screen. This setup will avoid recirculation of flue products into the combustion air stream. See Figure 33.

4.The vent piping must terminate with a Tee pointed upwards and away from the air inlet. See Figure 33.

5.Maintain clearances as shown in Figure 33 and Figure 34. Vent must terminate:

•At least 6 feet (1.8 m) from adjacent walls.

•No closer than 12 inches (305 mm) below roof overhang.

•At least 7 feet (2.1 m) above any public walkway.

•At least 3 feet (0.9 m) above any forced air intake within 10 feet (3 m).

•No closer than 12 inches (305 mm) below or horizontally from any door or window or any other gravity air inlet.

Air inlet must terminate at least 12 inches (305 m) above grade or snow line; at least 12 inches (305 mm) below the vent termination; and the vent pipe must not extend more than 24 inches (610 mm) vertically outside the building as shown in Figure 33 and Figure 34.

Do not terminate closer than 4 feet (1.2 m) horizontally from any electric meter, gas meter, regulator, relief valve, or other equipment. Never terminate above or below any of these within 4 feet (1.2 m) horizontally.

6.Locate terminations so they are not likely to be damaged by foreign objects, such as stones or balls, or subject to buildup of leaves or sediment.

Figure 33.  AIR/VENT TERMINATION - HORIZONTAL

Figure 34.  HORIZONTAL CLEARANCES - AIR/VENT

TERMINATION

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Contents XP Boiler Table of Contents Approvals Safe INSTALLATION, USE and ServiceImportant Definitions General Safety Abbreviations Used IntroductionModel Identification QualificationsDimensions and Capacity Data Operating CharacteristicsDouble Heat Exchanger Boiler Rough in Dimensions Double Ratings Electrical RequirementsFLOW, Head and Temperature Rise XB Models FLOW, Head and Temperature RiseFeatures and Components Single Heat Exchanger Boiler ComponentsDouble Heat Exchanger Boiler Components Component Description Low water cutoff board and sensor probe LwcoControl Components Main Power Supply Switch Flame Sensor Water Temperature SensorsWater Temperature Limit Controls LOW Water Cutoff Device LwcoGeneral Boiler Installation ConsiderationsHydronic System Closed Water Systems Internal ContaminantsHOT Water Boiler System General Water Line Connections Thermal ExpansionExplosion Hazard GAS ConnectionsCorrosive Materials and Contamination Sources GAS Supply Line SizingPower Supply Check Field WiringVAC Power Supply Wiring LOW Voltage Control WiringSuggested Pipe Size for Multiple GAS Appliances Natural GAS Location General RequirementsRequired Ability Replacing Existing Common Vented BoilerChemical Vapor Corrosion Installation ClearancesPanels and Covers LevelingFresh AIR Openings for Confined Spaces Confined Space Outdoor AIR Through TWO OpeningsOutdoor AIR Through ONE Opening AIR from Other Indoor Spaces Outdoor AIR Through TWO Horizontal DuctsOutdoor AIR Through TWO Vertical Ducts DuctsVenting Requirements for Installation in Canada Vent and AIR Pipe InstallationAIR Inlet Pipe Materials Direct Vent Installation Requirements Vertical Installation RequirementsHorizontal Installation Requirements Venting SupportsModels Vent KIT Numbers XB/XW Rain CAP Models Vent KIT Numbers XB/XW TEEModels Vent AIR Intake XB/XW KIT Numbers TEE Elbow Models Vent AIR Intake XB/XW KIT Numbers Rain CAP ElbowDirect VENT, Vertical Vent Horizontal Intake Termination Clearances Sidewall Power Vent Power VentTermination Clearances Sidewall Direct Vent Direct VentBELOW. Keep Clear of ALL Obstructions VENT/AIR Termination Locations Direct Vent Horizontal TerminationTermination Vertical Direct Venting Vertical TerminationPrepare ROOF/WALL Penetrations ClearancesModel Vent Diameter Vent MIN. Length Vent MAX. Length Inch Condensate Trap Condensate DisposalCondensate Neutralizer XP Models AO Smith Condensate Neutralizer KIT NumbersGAS Supply Pipe Connections GAS Supply ConnectionsGAS Pressure Requirements Check GAS Supply Inlet Pressure Pipe Sizes for Propane GASPurging GAS Line Check for GAS LeaksBoiler Start UP and Operations Filling and Purging of Heating Boiler InstallationFilling HOT Water Supply Boiler Installation Manifold Pressure ConnectionsINSPECT/FILL Condensate System Freeze Protection Hydronic Heating InstallationCHECK/CONTROL Water Hardness Water Hardness Medium 0-12 Grains PER Gallon XW ModelLighting and Operating Instructions Adjustment Setting of the Test ModeHigh Fire Rate Burner Control System Control SystemOverview Communications and Displays SpecificationsBurner Control Operation General Operational Sequence Domestic HOT Water Lead LAGLead LAG LL Master General Operation Local Operator Interface Display System FeaturesDefinitions Quick Setup S7999B OI Display Installation Instructions S7999B OI DisplayMounting the S7999B OI Display and Power Supply Starting UP the S7999B OI Display POWER-UP ValidationCommon OI Display page Symbols NavigationS7999B Display page Flow Configure Button Status or HomeChange Parameter Settings Configuration PasswordLogin KeyboardExample of Change Configuration Parameter VerifyData Comment FAULT/ALARM HandlingHistory Button Example of Hydronic History Control Expanded Alert Detail Operation ButtonDiagnostics Button System Configuration S7999B OI Display onlySystem Synchronization S7999B OI Display only ConfigurationHydronic Control Troubleshooting Code Description Recommended Troubleshooting Lockout CodesReserved 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 Code Description AllowedFan Parameter Errors Code Description Steam 20mA water temperature setting was invalid Abnormal Recycle Hardware flame bias delta high Eeprom DHW Plate Heat Exchanger Errors General Maintenance Maintenance ProceduresMaintenance Schedules Inspect Boiler AreaBlower Compartment Burner MaintenanceAIR Filter BOX Heat Exchanger Maintenance Venting MaintenanceCondensate Removal System Replacement Parts Handling Ceramic Fiber MaterialsPiping Diagrams Inlet DIAStorage Tank AOS Limited Warranty Conditions and Exceptions

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.
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