A.O. Smith 1700, 3400, 2600, 2000 instruction manual Inspect the Combustion Pressure Switch to make

Page 66

CODE

DESCRIPTION

RECOMMENDED TROUBLESHOOTING OF

NOTE

 

 

 

LOCKOUT CODES

 

150

Flame not detected

OEM Specific

H

 

 

1.

Sequence returns to standby and restarts

 

 

 

 

sequence at the beginning of Purge after the HF

 

 

 

 

switch opens. If flame detected during Safe Start

 

 

 

 

check up to Flame Establishing period.

 

151

High fire switch ON

OEM Specific

H or L

 

 

1.

Check wiring and correct any potential wiring

 

 

 

 

errors.

 

 

 

2.

Check High Fire Switch to assure proper function

 

 

 

 

(not welded or jumpered).

 

 

 

3.

Manually drive the motor to the High Fire position

 

 

 

 

and adjust the HF switch while in this position

 

 

 

 

and verify voltage through the switch to the HFS

 

 

 

 

input with a voltmeter.

 

 

 

4.

If steps 1-3 are correct and the fault persists,

 

 

 

 

replace the module.

 

152

Combustion pressure ON

OEM Specific

H or L

153

Combustion pressure Off

1.

Check wiring and correct any errors.

H or L

2.

Inspect the Combustion Pressure Switch to make

 

 

 

sure it is working correctly.

 

 

 

3.

Reset and sequence the relay module.

 

 

 

4.

During STANDBY and PREPURGE, measure

 

 

 

 

the voltage between Terminal J6-5 and L2 (N).

 

 

 

 

Supply voltage should be present. If not, the

 

 

 

 

lockout switch is defective and needs replacing.

 

 

 

5.

If the fault persists, replace the relay module.

 

154

Purge Fan switch On

OEM Specific

H or L

155

Purge Fan switch Off

1.

Purge fan switch is on when it should be off.

H

 

 

156

Combustion pressure and Flame ON

OEM Specific

H or L

 

 

1.

Check that flame is not present in the combustion

 

157

Combustion pressure and Flame OFF

L

 

 

 

chamber. Correct any errors.

 

 

 

2.

Make sure that the flame detector is wired to the

 

 

 

 

correct terminal.

 

 

 

3.

Make sure the F & G wires are protected from

 

 

 

 

stray noise pickup.

 

 

 

4.

Reset and sequence the module, if code

 

 

 

 

reappears, replace the flame detector.

 

158

Main valve ON

OEM Specific

L

 

 

1.

Check Main Valve terminal wiring and correct any

 

159

Main valve OFF

L

 

 

 

errors.

 

 

 

2.

Reset and sequence the module. If fault persist,

 

 

 

 

replace the module.

 

160

Ignition ON

OEM Specific

L

 

 

1.

Check Ignition terminal wiring and correct any

 

161

Ignition OFF

L

 

errors.

 

 

 

 

 

 

2.

Reset and sequence the module. If fault persist,

 

 

 

 

replace the module.

 

162

Pilot valve ON

OEM Specific

L

 

 

1.

Check Pilot Valve terminal wiring and correct any

 

163

Pilot valve OFF

L

 

errors.

 

 

 

 

 

 

2.

Reset and sequence the module. If fault persist,

 

 

 

 

replace the module.

 

66

Image 66
Contents XP Boiler Table of Contents Safe INSTALLATION, USE and Service ApprovalsImportant 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 LwcoBoiler Installation Considerations GeneralHydronic 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 LevelingConfined Space Outdoor AIR Through TWO Openings Fresh AIR Openings for Confined SpacesOutdoor AIR Through ONE Opening AIR from Other Indoor Spaces Outdoor AIR Through TWO Horizontal DuctsOutdoor AIR Through TWO Vertical Ducts DuctsVenting Vent and AIR Pipe Installation Requirements for Installation in CanadaAIR 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 Direct Vent Horizontal Termination VENT/AIR Termination LocationsTermination 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 Connections GAS Supply Pipe 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 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 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 VerifyFAULT/ALARM Handling Data CommentHistory Button Example of Hydronic History Control Expanded Alert Detail Operation ButtonDiagnostics Button System Configuration S7999B OI Display onlyConfiguration System Synchronization S7999B OI Display onlyHydronic 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 AreaBurner Maintenance Blower CompartmentAIR Filter BOX Venting Maintenance Heat Exchanger 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.