American Water Heater VG6250T100 general safety information, Explosion Hazard, Precautions

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general safety information

general safety information

Precautions

 

Hydrogen Gas Flammable

DO NOT USE THIS APPLIANCE IF ANY PART HAS BEEN UNDER WATER. Immediately call a qualified service agency to inspect the appliance and to make a determination on what steps should be taken next.

If the unit is exposed to the following, do not operate heater until all corrective steps have been made by a qualified service agency.

1.External fire.

2.Damage.

3.Firing without water.

Explosion Hazard

Flammable hydrogen gases may be present.

Keep all ignition sources away from faucet when turning on hot water.

Grounding Instructions

This water heater must be grounded in accordance with the National Electrical Code and/or local codes. These must be followed in all cases. Failure to ground this water heater properly may also cause erratic control system operation.

This water heater must be connected to a grounded metal, permanent wiring system; or an equipment grounding conductor must be run with the circuit conductors and connected to the equipment grounding terminal or lead on the water heater.

Hydrogen gas can be produced in a hot water system served by this appliance that has not been used for a long period of time (generally two weeks or more). Hydrogen gas is extremely flammable. To reduce the risk of injury under these conditions, it is recommended that a hot water faucet served by this appliance be opened for several minutes before using any electrical appliance connected to the hot water system. If hydrogen is present there will probably be an unusual sound such as air escaping through the pipe as the water begins to flow. There should be no smoking or open flame near the faucet at the time it is open.

Verify the power to the water heater is turned off before performing any service procedures.

Read and understand this instruction manual and the safety messages herein before installing, operating or servicing this water heater.

Failure to follow these instructions and safety messages could result in death or serious injury.

This manual must remain with the water heater.

Water temperature over 125°F (52°C) can cause severe burns instantly resulting in severe injury or death.

Children, the elderly and the physically or mentally disabled are at highest risk for scald injury.

Feel water before bathing or showering.

Temperature limiting devices such as mixing valves must be installed when required by codes and to ensure safe temperatures at fixtures.

Explosion Hazard

Overheated water can cause water tank explosion.

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

CAUTION

Improper installation, use and service may result

in property damage.

Do not operate water heater if flood damaged.

Inspect and anode rods regularly, replace if damaged.

Install in location with drainage.

Fill tank with water before operation.

Properly sized thermal expansion tanks are required on all closed water systems.

Refer to this manual for installation and service.

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Contents For Your Safety whenever maintenance adjustment or service is requiredRESIDENTIAL GAS WATER HEATERS Instruction Manualtable of contents APPROVALS safe installation, use and serviceDANGER general safety information PrecautionsImproper installation, use and service may result in property damage Explosion Hazardgeneral safety information General Safety Information Fire or Explosion HazardBreathing Hazard - Carbon Monoxide Gas Electrical Shock HazardPreparing For The Installation introductionAbbreviations Used Qualificationsfeatures and components REPLACEMENT PARTS AND DELIMING PRODUCTSGet To Know Your Water Heater - Gas Models Control Assemblyinstallation consideration Rough In DimensionsTable 1 - Rough-In-Dimensions Table 2 - Capacity, Gas and Electrical CharacteristicsProperty Damage Hazard Locating The Water HeaterInsulation Blankets Combustion Air and VentilationUnconfined Space Confined Space Fresh Air Openings For Confined SpacesOutdoor Air Through Two Openings Outdoor Air Through One OpeningOutdoor Air Through Two Horizontal Ducts Air From Other Indoor Spacesinstalling the new water heater Power SupplyChemical Vapor Corrosion Water PipingMixing Valves Dishwashing MachinesSpace Heating and Potable Water System Time to Produce 2nd & 3rdThermal Expansion Closed Water SystemsT & P Valve and Pipe Insulation if supplied Water Damage Hazard Explosion HazardTemperature-Pressure Relief Valve T&P Valve Discharge Pipe RequirementsGas Piping Supply Gas RegulatorCondensate Piping SEDIMENT TRAPSHigh Altitude Installations Filling the Water HeaterVenting If using 2” inch vent pipeIf using 3” inch vent pipe VENT PIPE TERMINATIONINSTALLATION OF VENT SYSTEM VENT TERMINAL INSTALLATION, SIDEWALLInstallation Requirements - Commonwealth of Massachusetts Installation of Carbon Monoxide DetectorsCommonwealth of Massachusetts Approved Carbon Monoxide DetectorsTermination Clearances Sidewall Power Vent POWER VENTTermination Clearances Sidewall Direct Vent Installation Sequence SEQUENCE OF INSTALLATIONS, FIGURE 15AVent Termination - Figure 15A DIRECT VENT terminal installation Figure 15BVERTICAL VENT TERMINAL INSTALLATION Flat Roof InstallationConcentric vent installation SAFETY CONSIDERATIONSINSTALLATION PROCEDURE 1 ROOF TERMINATION, see Figure Table 6 - KIT COMPONENTSPROCEDURE 2 SIDE WALL TERMINATION, see Figure CONCENTRIC TERMINATION FLAT ROOF CLEARANCEFigure 23A MULTI-CONCENTRIC VENT TERMINATIONS direct vent diagram Vent Pipe Preparation RECOMMENDED BRUSH* SIZE FOR PRIMER AND CEMENT APPLICATIONS1. INITIAL PREPARATION 2. SELECTION OF MATERIALSD. Inspection, cleaning, priming STEP E F. Joint assemblySTEP F G. Cleanup and joint movement B. DeburringControls and Switches BLOWER PROVER SWITCHBLOCKED EXHAUST SWITCH BLOCKED INTAKE SWITCHPower Vent Wiring Schematic - Figure WIRE TO GROUND CHECK INDICATES ZERO VOLTAGETHIS WATER HEATER IS POLARITY SENSITVE BEFORE APPLYING ELECTRICITY TO THIS HEATER BE CERTAIN THAT SUPPLY NEUTRALFOR YOUR SAFETY READ BEFORE LIGHTING OPERATING INSTRUCTIONSTO TURN OFF GAS TO APPLIANCE WARNING TURN OFF ALL ELECTRIC POWER BEFORE SERVICINGtemperature regulation HI LIMIT SWITCH ECOTime to Produce 2nd & 3rd Degreeadjust user settings control system operationOperating Set Point 120FDescription IconStatus Icons State MenuOperating States Control System MenusUser Settings & Control System Menus MENUHELP Main Menu140F Heater StatusDisplay Settings Heater InformationTemperature Units Backlight DelayFault History Fault OccurrenceRestore Factory Defaults Blocked ExhaustService Contact Information Show Contact InformationChange Contact Name Current Contact Infofor your information Start Up ConditionsOperational Conditions SMOKE/ODORperiodic maintenance Venting System InspectionAnode Rod Inspection Temperature-Pressure Relief Valve OperationService Draining and FlushingBurn harzard Hot water discharge Keep hands clear of drain valve dischargemaintenance Temperature-Pressure Relief Valve Testleakage checkpoints troubleshooting Installation ChecklistWater Heater Location VentingSequence Of Operation Flow Chart YESNOOperational Problems Fault and Alert ConditionsBurn Hazard Replacement PartsResetting Control System Lock Outs Electrical Shock HazardDiagnostic Checks AC Reversed Ignition FailureLow Igniter Current Blocked ExhaustBlower Prover Failure Blower Prover OpenBlocked Air Intake Energy Cut Out ECOPage Page Page LIMITED RESIDENTIAL GAS WARRANTY SERVICE AND LABOR RESPONSIBILITYCLAIM PROCEDURE CONDITIONS AND EXCEPTIONSPO Box 1597, 500 Princeton Road Johnson City, TN American Water Heater Product Service and SupportCopyright 2011 American Water Heaters. All rights reserved