A.O. Smith GDVT instruction manual Maintenance, Venting System Inspection, Pilot and Main Burner

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MAINTENANCE

FOR YOUR SAFETY AND SATISFACTORY OPERATION, IT IS RECOMMENDED THAT THIS HEATER BE CHECKED ONCE A YEAR BY A COMPETENT SERVICE PERSON.

USERS OF THIS APPLIANCE SHOULD BE AWARE THAT GAS COMPONENTS WEAR OUT OVER A PERIOD OF TIME. THE GAS CARRYING COMPONENTS OF THIS APPLIANCE SHOULD BE INSPECTED FOR PROPER OPERATION PERI- ODICALLY BY A QUALIFIED SERVICE TECHNICIAN.

VENTING SYSTEM INSPECTION

At least once a year a visual inspection should be made of the venting system. You should look for:

1.Obstructions which could cause improper venting. The com- bustion and ventilation air flow must not be obstructed.

2.Damage or deterioration which could cause improper venting or leakage of combustion products.

Be sure the vent piping is properly connected to prevent escape of dangerous flue gasses which could cause deadly asphyxia- tion.

Obstructions and deteriorated vent systems may present serious health risk or asphyxiation.

Chemical vapor corrosion of the flue and vent system may occur if air for combustion contains certain chemical vapors. Spray can propellants, cleaning solvents, refrigerator and air conditioner refrigerants, swimming pool chemicals, calcium and sodium chloride, waxes, bleach and process chemicals are typical com- pounds which are potentially corrosive.

If after inspection of the vent system you found sooting or dete- rioration, something is wrong. Call the local gas utility to correct the problem and clean or replace the flue and venting before resuming operation of the water heater.

PILOT AND MAIN BURNER

Flood damage to a water heater may not be readily visible or im- mediately detectable. However, over a period of time a flooded water heater will create dangerous conditions which can cause

DEATH, SERIOUS BODILY INJURY, OR PROPERTY DAM- AGE. Contact a qualified installer or service agency to replace

a flooded water heater. Do not attempt to repair the unit! It must be replaced!

At least once a year a visual inspection should be made of the main burner and the pilot assembly for proper flame characteris- tics. This can be done by removing the Outer Door and viewing the main burner operation through the Viewport on the Inner Door, see Figure 1. The main burner should provide complete combustion of gas, ignite rapidly, give reasonably quiet opera- tion, and cause no excessive flame lifting from the burner ports. If the proper flame characteristics are not evident (see Figure 1), make sure that the flow of combustion and ventilation air is not blocked in the venting system.

You should also check for sooting. Soot is not normal and will impair proper combustion. A visual inspection of the main burner and pilot assembly should also be done at least once a year, see Figure 1.

Soot build-up indicates a problem that requires correction be- fore further use. Turn “OFF” gas to water heater and leave off until repairs are made, because failure to correct the cause of the sooting can result in a fire causing death, serious injury, or property damage.

If proper flame characteristics are not evident, check for accumu- lation of lint or other foreign material that restricts or blocks the air openings in the heater or burner.

SOOT BUILD-UP INDICATES A PROBLEM THAT REQUIRES CORRECTION BEFORE FURTHER USE. CONSULT WITH A QUALIFIED SERVICE TECHNICIAN.

Should the main burner or burner air openings require cleaning, turn the gas control knob to “OFF” position and allow the burner to cool. Remove the burner and clean with a soft brush. Clean main burner orifice with a suitable soft material.

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Contents Residential GAS Water Heaters Important Definitions Safe INSTALLATION, USE and ServiceGeneral Safety Introduction Table of ContentsKeep Clear of ALL Obstructions GET to Know Your Water Heater Replacement Parts Typical InstallationHotter Water can Scald Mixing Valve UsageFacts to Consider about the Location Locating the NEW Water HeaterVent Termination Insulation BlanketsVentilation for Appliances Located in Confined Spaces General Installing the NEW Water HeaterRequired Ability Inspect ShipmentValve and Pipe Insulation if Supplied TEMPERATURE-PRESSURE Relief ValveGAS Piping Water Potable Heating and Space HeatingClosed Water System GAS Piping with Flexible Connector Venting High Altitude InstallationsSediment Traps Filling the Water Heater Vent Terminal Clearances Combustion AIR and VentilationHigh Rise Vent Arrangement Vent ConnectionsLocating Clearance Hole for Vent Uncompressing the Corrugated Tubing Vent AssemblySecuring Vent Termination Assembly to the Exterior Wall Standard Vent ArrangementMinimum Offset Vent ArrangementFigure D TOP KnobTemperature Regulation Temperature RegulationOperational Conditions For Your InformationExternal Damage Start UP ConditionsAIR in HOT Water Faucets Pilot and Main Burner MaintenanceVenting System Inspection Cathodic Protection Anode Temperature & Pressure Relief ValveAnode ROD Maintenance DrainingDrain Valve Washer Replacement Leakage Checkpoints ServiceProblem Possible Causes Correction Troubleshooting GuidelinesThermostat Fails to Slow HOT Water RecovERY Drip from Relief ValvePage Conditions and Exceptions Series Tank PartsXCV, XCVL, XCVH, XVR XCVT, XcvxLimitation on Implied Warranties Service and Labor ResponsibilityClaim Procedure Installation InformationTennessee Waltz Parkway Ashland CITY, TN

GDV, GDVT specifications

A.O. Smith is a well-known name in the water heating industry, and its GDVT and GDV series of water heaters exemplify the company's commitment to quality, efficiency, and innovation. These models are designed to provide reliable hot water solutions for both residential and commercial needs, seamlessly integrating advanced technology and user-friendly features.

One of the main features of the GDVT and GDV series is their high energy efficiency ratings. These water heaters utilize advanced insulation and energy-saving technologies, allowing them to achieve impressive efficiency levels. The GDVT series, for instance, can achieve an Energy Factor (EF) rating of up to 0.96, making it an environmentally friendly choice that can significantly reduce energy bills. This high level of efficiency is a result of thoughtful engineering, including a highly insulated tank that minimizes heat loss.

Another standout characteristic of the GDVT and GDV series is their compact design. These models are built to fit into tight spaces, making them ideal for homes or businesses with limited installation areas. Despite their compact size, they maintain a large storage capacity, ensuring that users have access to consistent hot water. The GDVT series is particularly known for its vertical design, which allows for easy installation in smaller utility rooms or closets.

The GDV models feature a robust digital display that provides real-time information about the water heater's operation. Users can easily monitor the unit’s performance and make adjustments as needed. Additionally, these models come equipped with advanced safety features, including a built-in safety shut-off system and over-temperature protection, ensuring safe and reliable operation.

Both the GDVT and GDV series utilize A.O. Smith's innovative HydroJet® technology, which minimizes sediment buildup within the tank. This technology involves the strategic placement of an internal dip tube that maximizes water circulation, helping to extend the life of the water heater and maintain optimal performance over the years.

In summary, the A.O. Smith GDVT and GDV series water heaters are an excellent choice for those seeking a balance of efficiency, compact design, advanced technology, and enhanced safety. With their impressive energy ratings, user-friendly features, and cutting-edge technologies, these units are tailored to meet the demands of modern residential and commercial water heating solutions, ensuring a consistent supply of hot water while minimizing environmental impact.
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