American Water Heater BCL3 85T390 6NOX Maintenance, Venting System, Intake Air Screen

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Maintenance

Venting System

Examine the venting system every six months for obstructions and/or deterioration of the vent piping. Check all vent system connections for leakage and repair or reseal as necessary.

Remove all soot or other obstructions from chimney which will retard free draft.

Intake Air Screen

The intake air screen is attached to the inlet end of the combustion blower. Inspect the intake air screen every six months. The intake air screen should be cleaned of any buildup of debris or foreign material.

Temperature-Pressure Relief Valve Test

• Burn hazard.

•Hot water discharge.

•Keep clear of Temperature- Pressure Relief Valve discharge outlet.

It is recommended that the Temperature-Pressure Relief Valve should be checked to ensure that it is in operating condition every 6 months.

When checking the Temperature-Pressure Relief Valve operation, make sure that (1) no one is in front of or around the outlet of the Temperature-Pressure Relief Valve discharge line, and (2) that the water discharge will not cause any property damage, as the water may be extremely hot. Use care when operating valve as the valve may be hot.

To check the relief valve, lift the lever at the end of the valve several times, see Figure 25. The valve should seat properly and operate freely.

If after manually operating the valve, it fails to completely reset and continues to release water, immediately close the cold water inlet to the water heater and drain the water heater, see Draining and Flushing on page 29. Replace the Temperature-Pressure Relief

Valve with a properly rated/sized new one, see Temperature- Pressure Relief Valve on pages 13-14 for instructions on replacement.

Figure 25.

If the Temperature-Pressure Relief Valve on the water heater weeps or discharges periodically, this may be due to thermal expansion.

NOTE: Excessive water pressure is the most common cause of Temperature-Pressure Relief Valve leakage. Excessive water system pressure is most often caused by "thermal expansion" in a "closed system." See Closed Water Systems and Thermal

Expansion on page 13. The Temperature-Pressure Relief Valve is not intended for the constant relief of thermal expansion.

Temperature-Pressure Relief Valve leakage due to pressure build up in a closed system that does not have a thermal expansion tank installed is not covered under the limited warranty. Thermal expansion tanks must be installed on all closed water systems.

DO NOT PLUG THE TEMPERATURE-PRESSURE RELIEF VALVE OPENING. THIS CAN CAUSE PROPERTY DAMAGE, SERIOUS INJURY OR DEATH.

explosion hazard

Temperature-Pressure relief Valve must comply with AnSI Z21.22- CSA 4.4 and ASMe code.

Properly sized temperature- pressure relief valve must be installed in opening provided.

Can result in overheating and excessive tank pressure.

Can cause serious injury or death.

Anode Rod Inspection

The anode rod is used to protect the tank from corrosion. Most hot water tanks are equipped with an anode rod. The submerged rod sacrifices itself to protect the tank. Instead of corroding tank, water ions attack and eat away the anode rod. This does not affect water’s taste or color. The rod must be maintained to keep tank in operating condition.

Anode deterioration depends on water conductivity, not necessarily water condition. A corroded or pitted anode rod indicates high water conductivity and should be checked and/or replaced more often than an anode rod that appears to be intact. Replacement of a depleted anode rod can extend the life of your water heater. Inspection should be conducted by a qualified technician, and at a minimum should be checked annually after the warranty period.

Artificially softened water is exceedingly corrosive because the process substitutes sodium ions for magnesium and calcium ions.

The use of a water softener may decrease the life of the water heater tank.

The anode rod should be inspected after a maximum of three years and annually thereafter until the condition of the anode rod dictates its replacement. Anode replacement is not covered by warranty.

NOTE: Artificially softened water requires the anode rod to be inspected annually.

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Contents Commercial gas water heaters Table Of Contents Safe Installation, Use and Service ApprovalsGeneral Safety Information Fire and Explosion HazardGrounding Instructions PrecautionsHydrogen Gas Flammable Qualified Installer or Service Agency IntroductionAbbreviations Used QualificationsFeatures and Components Eliminator self-cleaning systemBlower/Burner Assembly High Limit Switch ControlsInstallation considerations Rough In DimensionsRough-In-Dimensions Recovery Capacities, based on 82% efficiencyLocating the Water Heater ClearancesNSF Leg Kit Insulation BlanketHard Water Circulation PumpsHigh Altitude Installations Breathing Hazard Carbon Monoxide GasInstallation Requirements Temperature-Pressure Relief Valve Dishwashing MachinesClosed Water Systems Thermal ExpansionContaminated Air Combustible Material StorageValve Discharge Pipe Requirements Air Requirements Unconfined SpaceConfined Space VentingMultiple Heater Manifold Outdoor Air Through One Opening Fresh Air Openings for Confined SpacesOutdoor Air Through Two Openings Outdoor Air Through Two Horizontal DuctsOutdoor Air Through Two Vertical Ducts Air From Other Indoor SpacesType B GAS Vent Multiple Gas Fired Tank-Type HeatersModel ABCL3 85T275 6NOX Water Line Connections Water heater installationValve Discharge Pipe Installation Diagrams Top Inlet/Outlet Usage Tube Inlet InstallationHeater Wiring Gas Line Leak Testing Gas PipingPurging Gas Meter Size Natural Gases OnlyPrior to Start Up Start upInitial Start Up Water Temperature Adjustment Multiple Appliance InstallationsChecking Venting Checking the InputSequence of Operation Lighting & Operating LabelSequence of Operation Flow Chart YESMaintenance Temperature-Pressure Relief Valve TestVenting System Intake Air ScreenDraining and Flushing Deliming SolventsTo Drain the Water Heater Storage Tank To Flush the Water Heater Storage TankTank Cleanout Procedure Deliming Using Flo-Jug MethodIgnition Control System System DiagnosticsElectrical Servicing High Water Temperature Shut OFF System For Your InformationStart Up Conditions Operational ConditionsQualified Service Agency TroubleshootingComplaint Cause Remedy User Diagrams Water PipingTemperature & Pressure Temperature & Pressure Relief Valve Circulating Pump Multi Flue 2 Units Multi Flue 2 Units with Vertical Storage Tank Multi Flue 2 Units with Vertical Storage Tank Return from Multi Flue 2 Units TWO Temperature Multi Flue 2 Units with Booster TWO Temperature MULTI-FLUE 3 Units MULTI-FLUE 3 Units with Vertical Storage Tank MULTI-FLUE 3 Units with Horizontal Storage Tank Multi Flue Flue 4 Units MULTI-FLUE 4 Units with Vertical Storage Tank MULTI-FLUE 4 Units with Horizontal Storage Tank Model Dimension a Page Service and Repair Expenses Claim ProcedureALL Other Parts Conditions and Exceptions

BCL3 95T199 6NOX, BCL3 85T390 6NOX, BCL3 85T275 6NOX specifications

American Water Heater Company has been a leader in the production of high-quality water heaters for residential and commercial use. Among their acclaimed collection are three notable models: the BCL3 85T275 6NOX, BCL3 85T390 6NOX, and BCL3 95T199 6NOX. Each of these models is meticulously designed, providing efficient heating solutions while prioritizing safety and environmental responsibility.

The BCL3 85T275 6NOX is an advanced model that offers a remarkable 275,000 BTU output, making it suitable for a variety of applications, from single-family homes to larger commercial settings. This unit features a powerful water heating capacity and is equipped with a robust heat exchanger that maximizes thermal efficiency. One of its key technological innovations is the low nitrogen oxide (NOX) emissions system, which significantly reduces harmful emissions, thereby complying with stringent environmental standards.

Similarly, the BCL3 85T390 6NOX enhances performance with a higher BTU output of 390,000. This capacity allows it to effectively serve larger facilities with higher demand for hot water. The technology behind this model includes an automatic flue damper that optimizes energy use by adjusting the airflow, resulting in improved combustion efficiency. Additionally, its durable construction ensures long service life, catering to the needs of both residential users and commercial operations.

The BCL3 95T199 6NOX, with its 199,000 BTU capacity, combines efficiency with versatility. This unit is designed for a wide range of water heating needs, providing an excellent option for both medium-sized homes and smaller commercial setups. Its unique design incorporates advanced insulation materials that help retain heat longer, thereby enhancing overall efficiency. Like its counterparts, this model is equipped with advanced NOX reduction technology, which makes it an environmentally friendly choice.

All three models share a common theme of reliability and efficiency. Their advanced control systems enable precise temperature management, allowing users to set their desired hot water temperatures with ease. Furthermore, each unit is designed with safety features such as a high-temperature limit switch and electronic ignition, ensuring safe operation.

In conclusion, the American Water Heater BCL3 series — featuring the BCL3 85T275 6NOX, BCL3 85T390 6NOX, and BCL3 95T199 6NOX — showcases the company's commitment to innovation, quality, and environmental stewardship. These models not only meet the demanding needs of consumers but also contribute to a more sustainable future with their low emissions and efficient systems. Whether for residential or commercial use, they are designed to deliver reliable performance year after year.
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