A.O. Smith EQB 200 G, EQB 115 G, EQB 155 G manual Maintenance, Sacrificial anode

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Figure 10 - Conversion to another gas

4b. Conversion from LP-gas to natural gas:

-Put the pressure regulator into operation. To do this the temperature regulating knob should be pulled straight forward. Next the red plastic cover that is now visible, should be removed. Turn the ‘no pr’ (no pressure regulation) screw completely up (see Figure 10).

-Seal this setting with lacquer.

-Remount the burner in reverse order.

-Open the main gas tap.

-Set the correct burner pressure (see table above).

5.If necessary adjust the pilot correctly (see “Pilot adjustment”).

6.Fit the correct sticker from the conversion set on the appliance so that it is clear that the appliance has been converted and on which gas the appliance operates.

2.8Maintenance

To ensure safe and efficient operation of the water heater it is recommended that it is cleaned and serviced at least once a year by a qualified competent person.

AOS 0487

2.8.1Sacrificial anode

The life cycle of the anode is determined by the quality and the quantity of the water flowing through the apparatus. It is therefore recommended that the anode be inspected and replaced if necessary at least once a year.

1.Close the stop cock in the cold water supply pipe,

2.Open the nearest hot water tap in order to allow the pressure to drop from the water heater and the pipes,

3.Slacken the anode with a fitting wrench,

4.Check the anode and replace it if it has been reduced in diameter by 60% or more at any point on its length,

5.Check for water leaks.

If it is necessary to replace the anode it should always be replaced by one of the same type.

The type of anode required can be determined on the basis of the type of the appliance and the serial number.

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Contents EQB 155 G EQB 115 GEQB 200 G Page Contents Appliance DescriptionAOS Flue down draught safety device Technical safety equipmentGas control valve AOS Technical description DimensionsDimensions Device category II2H3+ Technical dataInstallation Installation instructionsWater connections AOS Flue system Gas connectionFilling the water heater CommissioningPutting into operation Putting out of operation Pilot adjustmentRemoving and replacing the inner door Setting the pilot Temperature regulationConverting to another type of gas Setting the nominal heat inputDescription Unit EQB G20 G30 G31 Sacrificial anode MaintenanceSpare parts CleaningInlet combination Inspection of the internal waterside surfacesImportant warning Fault findingGas smell Condensation3 Use CommissioningPutting out of operation Maintenance Fault Possible cause Fault findingFault Possible cause Range of guarantee Guarantee in generalGuarantee of the tank Conditions for installation and useAny other dealer or stockist of the warrantors products Page Page Page Page 0307 630 R1

EQB 115 G, EQB 155 G, EQB 200 G specifications

A.O. Smith has established a strong reputation in the water heating industry, and their EQB series of gas water heaters exemplifies this commitment to innovation and efficiency. The EQB 200 G, EQB 155 G, and EQB 115 G models are crafted to meet various residential needs while showcasing advanced technologies and user-friendly features.

The EQB 200 G is the powerhouse of the series, designed to accommodate households with higher hot water demands. It boasts a 199,000 BTU per hour input, enabling quick heating and sustaining higher output even during peak usage times. The unit features a robust tank capacity, ensuring an ample supply of hot water when needed. A.O. Smith's unique combustion system enhances the efficiency of this model, optimizing fuel consumption and reducing operational costs.

Next, the EQB 155 G offers a perfect balance for medium-sized households. With a maximum input of 155,000 BTU per hour, this water heater is capable of delivering consistent hot water without compromising on energy efficiency. The smart design includes a built-in temperature control that allows for precise adjustments, making it convenient to set the desired water temperature. Its compact design enables easier installation in smaller spaces, while still providing quality performance.

For smaller households or those with lower hot water requirements, the EQB 115 G is an ideal choice. This model operates at a maximum of 115,000 BTU per hour, making it perfect for apartments or modest-sized homes. The EQB 115 G features innovative insulation technology, significantly reducing heat loss and enhancing overall efficiency. This not only conserves energy but also contributes to lower utility bills over time.

All models in the EQB series are equipped with A.O. Smith's exclusive Cyclone 2 venting system, designed to facilitate efficient airflow and reduce the risk of backdrafts. Additionally, the advanced ignition system promotes reliable performance while minimizing maintenance needs.

A key standout feature across this series is the integrated smart technology, which provides real-time monitoring of water temperature and energy consumption. This connectivity allows homeowners to track their water usage and make adjustments to optimize performance further.

In summary, the A.O. Smith EQB series - including the EQB 200 G, EQB 155 G, and EQB 115 G - showcases superior technology, user-centric design, and energy-efficient operation. These gas water heaters are engineered to cater to a variety of household needs without sacrificing performance or convenience.
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