TWO-STAGE GAS Firing System

Commercial Gas Boilers

84% efficient, low-nox hot water supply boilers

Features

A. O. Smith Genesis® boilers offer everything you could ask for in a non-condensing boiler. They provide the highest possible 84% thermal efficiency, outstanding venting flexibility, space-saving stackable design and a new, advanced Energy Management Control (EMC) system. Genesis models are available for installation indoors (GW Series) or outdoors (GWO Series).

NEW EMC-5000 ENERGY MANAGEMENT CONTROL

Patent pending

Controls every electrical boiler function, including pump operation and main burner ignition, delivers precise temperature management, with ±1º accuracy

Display panel shows current operating status and fault readings in easy-to-understand English instead of confusing numeric codes

Display also shows temperature setpoints, outlet temperature, current inlet/outlet differential (T) and tank temperature

Help screens assist in boiler setup and explain control options

Included remote temperature sensor when mounted in the storage tank allows the tank temperature to be set and monitored at the boiler

Twin gas valve firing system prevents short cycling and ensures smooth operation, saves fuel and extends boiler life

Prevents short cycling when demand is low, delivers maximum output when demand is high

LOW-NOx OPERATION

Meets or exceeds Texas and California SCAQMD Rule 1146.2 air quality standards

COPPER FINNED-TUBE HEAT EXCHANGER

Designed for maximum durability and serviceability

Copper is lightweight for easier handling and immune to thermal shock

Removable headers allow easy inspection of waterways

SPACE-SAVING DESIGN

Smaller footprint versus other horizontal copper fin-tube boilers

Optional stack rack allows one unit to be stacked on top of another, doubling output within the footprint of a single unit

MEETS ASHRAE/IESNA 90.1-2004

FIVE-YEAR HEAT EXCHANGER LIMITED WARRANTY

For complete information, consult written warranty or contact A. O. Smith

Revised November 2008

MODELs

gw/gwo-300

through

gw/gwo-750

PG 1 OF 4

AOSDG25200

GW/GWO-750, GW/GWO-300 specifications

A.O. Smith is a reputable manufacturer known for its high-quality water heating solutions, and the GW/GWO-300 and GW/GWO-750 models exemplify the brand's commitment to performance and reliability. These gas water heaters are engineered to provide ample hot water for residential and commercial applications, making them an ideal choice for various settings.

The GW/GWO-300 and GW/GWO-750 models feature a robust design that ensures longevity and efficiency. Both units are available in natural gas and propane varieties, allowing users to select the fuel type that best suits their needs. One of the standout features of these models is their energy efficiency. They are equipped with advanced insulation, which minimizes heat loss, ensuring that hot water is readily available while reducing energy costs.

In terms of technology, these models utilize a reliable burner system that ensures quick heating and consistent output. The GW/GWO-300 boasts a capacity of 30 gallons, making it suitable for smaller households or light commercial use. The GW/GWO-750, on the other hand, offers a significantly larger capacity of 75 gallons, catering to larger households or businesses that require a steady supply of hot water.

Both models come with an integrated thermostat that provides precise temperature control, allowing users to set their preferred water temperature for maximized comfort. Additionally, they are equipped with a digital display that provides vital data, such as water temperature and system performance metrics, ensuring users can monitor their water heating system effortlessly.

Safety features are also a key aspect of the GW/GWO series. These models include advanced safety mechanisms such as flame arrestors and temperature-pressure relief valves, ensuring user safety and protecting the unit from overheating or excessive pressure buildup.

Moreover, A.O. Smith places a strong emphasis on customer support, offering comprehensive warranties and accessible customer service. This dedication to service adds an extra layer of confidence for users investing in the GW/GWO-300 and GW/GWO-750 models.

In summary, the A.O. Smith GW/GWO-300 and GW/GWO-750 water heaters represent a blend of efficiency, safety, and advanced technology. With their varying capacities and user-friendly features, these models are designed to meet diverse hot water needs, making them a smart choice for anyone looking to invest in a reliable water heating solution.