A.O. Smith EQB 155 G, EQB 115 G, EQB 200 G manual Installation instructions, Water connections

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2.FOR THE INSTALLER

2.1Installation instructions

This water heater must be fitted in a location which will permit the provision of an approved flue system and adequate ventilation.

A service clearance of 15 cm at the sides and rear of the unit and 60 cm at the front of the unit should be allowed for ease of servicing. Adequate distance must be allowed between the top of the unit and any obstruction or ceiling to allow the flue baffle and anode to be inspected, cleaned or in the case of the anode replaced if necessary.

The water heater must stand on a level surface resistant to heat and with sufficient strength to support the weight of the unit when full of water.

This water heater must not be installed in a bath room, bedroom or in a cup- board opening on to such rooms. This water heater must not be installed in any area where flamable materials are used or stored.

Insufficient ventilation may give rise to a risk of fire, explosion or suffocation. If in doubt consult the national and local regulations governing the installation of gas appliances or your local British gas service department.

2.1.1 Installation

The installation of this water heater should be carried out by a suitably qualified competent person. It is a criminal offence for unqualified persons to install gas equipment.

Installation should be carried out in accordance with all local authority and building regulations, local water authority and fire regulations and the following British standards: 5440, 5546, 6644, 6700, 6798 and 6891.

Some chemicals produce vapours which can cause rapid failure of thermocouples, burners and storage tanks if they are drawn into the combustion air supply.

Therefore if this water heater will be used to supply hot water to:

-hairdressers,

-dry cleaners

-industrial degreasing processes or any other area where compounds containing halogens are used and stored, care should be taken that all primary and secondary air is drawn from outside atmosphere free of such contaminents.

For further advise contact A.O. SMITH.

2.1.2 Water connections

A.O. Smith water heaters are suitable for connection to vented, unvented and pumped pressurised systems. In each case appropriate valves and fittings should be used to ensure the system complies with the requirements of the water by laws, and appropriate building regulations.

When fitting it is essential the rules of 'good practice' are applied at all stages of installation.

Vented systems

If the water heater is to be connected to a cold feed tank or cistern the hot water supply pipe must include an open vent which discharges over the cold feed cistern. The cold feed cistern must have an actual capacity of greater volume than the hourly recovery rate of the water heater(s) which it supplies.The minimum actual capacity is 50 gallons or 227 litres.

Unvented

To install an A.O. Smith water heater on an unvented cold water supply system a kit of valves and fittings listed by the water research centre and complying with part G3 of the current building regulations should be used. Installation should be carried out generally as shown on the following diagram.

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Contents EQB 200 G EQB 115 GEQB 155 G Page Contents Appliance DescriptionAOS Gas control valve Technical safety equipmentFlue down draught safety device AOS Technical description DimensionsDimensions Device category II2H3+ Technical dataWater connections Installation instructionsInstallation AOS Flue system Gas connectionPutting into operation CommissioningFilling the water heater Removing and replacing the inner door Pilot adjustmentPutting out of operation 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 CondensationPutting out of operation Commissioning3 Use 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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