A.O. Smith EQB 200 G, EQB 115 G, EQB 155 G manual Description, Appliance

Page 4

1.

GENERAL

exceeding 25 mm. inside diameter;

1.1

Description of the

maximum length of dead leg 7.5

metres;

 

appliance

- for pipes with an inside diameter

 

 

exceeding 25 mm. maximum dead leg

Construction of the water heater is in

3.0 metres.

accordance with the European

 

standard for gas heated water storage

 

heaters for sanitary application (EN 89).

 

The appliance thus meets the European

 

Directory for Gas Appliances and is

 

therefore entitled to carry the CE-

 

marking. It is an open flued appliance

 

without ventilator and with a flue gas

 

down

draught safeguard (category

 

B11BS). The water heater is suitable for a maximum working pressure of 8 bar. The water-heater tank is manufactured from low carbon sheet steel and is glass-lined on the inside. In addition the tank is fitted with a sacrificial anode as an extra protection against corrosion.

Athick PU-insulation layer covered in a steel jacket reduces unnecessary heat loss. When the appliance is filled with water it continuously is under water pressure.

As hot water is drained from the tank, cold water is added immediately. A flue baffle has been placed in the flue tube to improve heat transfer. The flue gasses pass their heat on to the water by means of radiation and convection. The flue gasses are guided to the chimney via the draught diverter. The exhaust of the flue gasses is realized by natural thermal draught (see Figure 1).

Dead legs on a hot water installation are undesireable. Where possible they should be avoided. Where the inclusion on the system of a dead leg is unavoidable the following restrictions should be applied:

-for pipes not exceeding 19 mm. inside diameter; maximum lengh of dead leg permitted 12.0 metres;

-for pipes exceeding 19 mm. but not

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Contents EQB 155 G EQB 115 GEQB 200 G Page Contents Description ApplianceAOS Flue down draught safety device Technical safety equipmentGas control valve AOS Dimensions Technical descriptionDimensions Technical data Device category II2H3+Installation Installation instructionsWater connections AOS Gas connection Flue systemFilling the water heater CommissioningPutting into operation Putting out of operation Pilot adjustmentRemoving and replacing the inner door Temperature regulation Setting the pilotSetting the nominal heat input Converting to another type of gasDescription Unit EQB G20 G30 G31 Maintenance Sacrificial anodeCleaning Inlet combinationInspection of the internal waterside surfaces Spare partsFault finding Gas smellCondensation Important warning3 Use CommissioningPutting out of operation Maintenance Fault finding Fault Possible causeFault Possible cause Guarantee in general Guarantee of the tankConditions for installation and use Range of guaranteeAny 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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