Commercial Gas Water Heaters

ROUGH-IN DIMENSIONS

SIDE VIEW OF BTN

Models 120-400

 

Clearance to Combustibles

Clearance to Non-Combustibles

 

 

 

 

 

Model

Sides & Rear

Top Cover

Sides & Rear

Top Cover

 

 

 

 

 

BTN120

1”

12”

0”

12”

 

 

 

 

 

BTN154

1”

12”

0”

12”

 

 

 

 

 

BTN180

1”

12”

0”

12”

 

 

 

 

 

BTN199

1”

12”

0”

12”

 

 

 

 

 

BTN200(A)

1”

12”

0”

12”

 

 

 

 

 

BTN250(A)

2”

12”

0”

12”

 

 

 

 

 

BTN275(A)

2”

12”

0”

12”

 

 

 

 

 

BTN310(A)

2”

12”

0”

12”

 

 

 

 

 

BTN366(A)

3”

12”

0”

12”

 

 

 

 

 

BTN400(A)

3”

12”

0”

12”

 

 

 

 

 

 

 

 

Water Connections in Inches

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Inlet

 

 

 

Outlet

 

 

TOP VIEW OF BTN

 

 

 

 

 

 

 

Models

Top

Front

Back

Top

Front

Back

 

 

 

 

 

 

 

 

 

 

 

BTN120

1 1/2

1 1/2

1

1/2

1 1/2

1 1/2

1

1/2

 

 

 

 

 

 

 

 

 

 

 

BTN154

1 1/2

1 1/2

1

1/2

1 1/2

1 1/2

1

1/2

 

 

 

 

 

 

 

 

 

 

 

BTN180

1 1/2

1 1/2

1

1/2

1 1/2

1 1/2

1

1/2

 

 

 

 

 

 

 

 

 

 

 

BTN199

1 1/2

1 1/2

1

1/2

1 1/2

1 1/2

1

1/2

 

 

 

 

 

 

 

 

 

 

 

BTN200(A)

1 1/2

1 1/2

 

2

1 1/2

1 1/2

 

2

 

 

 

 

 

 

 

 

 

 

 

BTN250(A)

1 1/2

1 1/2

 

2

1 1/2

1 1/2

 

2

 

 

 

 

 

 

 

 

 

 

 

BTN275(A)

1 1/2

1 1/2

 

2

1 1/2

1 1/2

 

2

 

 

 

 

 

 

 

 

 

 

 

BTN310(A)

1 1/2

1 1/2

 

2

1 1/2

1 1/2

 

2

 

 

 

 

 

 

 

 

 

 

 

BTN366(A)

1 1/2

1 1/2

1

1/2

1 1/2

1 1/2

1

1/2

 

 

 

 

 

 

 

 

 

 

 

BTN400(A)

1 1/2

1 1/2

1

1/2

1 1/2

1 1/2

1

1/2

 

 

 

 

 

 

 

 

 

 

Gas Pressure Requirements

 

Natural Gas

Propane Gas

 

 

 

Max. Supply Pressure

14” w.c.

14” w.c.

 

 

 

Min. Supply Pressure

5.0” w.c.

11” w.c.

 

 

 

Manifold Pressure

3.5” w.c.

10” w.c.

 

 

 

Electrical Specifications

 

Volts

Amps

 

 

 

BTN

120VAC

5.0

 

 

 

www.hotwater.com

AOSCG10500

Revised September 2008

PG 3 OF 4

Page 3
Image 3
A.O. Smith BTN 120-40D specifications ROUGH-IN Dimensions Side View of BTN, TOP View of BTN

BTN 120-40D specifications

The A.O. Smith BTN 120-40D is a commercial-grade water heater designed for efficiency and reliability in various applications. Known for its robust performance, it offers a combination of advanced technologies and user-friendly features, making it a top choice for businesses and industries that require a consistent supply of hot water.

One of the standout features of the BTN 120-40D is its impressive heating capacity. With a storage tank that holds up to 120 gallons, this water heater can provide a high volume of hot water for restaurants, hotels, and other establishments that experience heavy usage. The design ensures a quick recovery rate, allowing it to keep pace with peak demands without any significant drops in temperature.

This unit is equipped with A.O. Smith's state-of-the-art control technology, which optimizes energy usage while maintaining set temperature levels. The intelligent diagnostics feature allows for real-time monitoring and alerts, helping to prevent issues before they arise. This predictive maintenance capability not only enhances efficiency but also extends the lifespan of the unit.

In terms of construction, the BTN 120-40D is built with high-quality materials to withstand the rigors of commercial use. Its robust tank is protected with a glass-lined coating, providing excellent corrosion resistance. Additionally, it has been designed with an insulation layer that minimizes heat loss, ensuring energy efficiency and reducing overall operational costs.

The water heater also comes with advanced safety features, including an adjustable thermostat and a combination temperature and pressure relief valve, which work together to maintain optimal performance and safety standards. The unit is compatible with both natural gas and propane, offering flexibility in fuel options.

Overall, the A.O. Smith BTN 120-40D exemplifies durability, efficiency, and cutting-edge technology. Its capacity to deliver large volumes of hot water, combined with smart features and high-quality materials, makes it an ideal solution for those requiring a dependable water heating system. Whether for commercial kitchens, laundries, or industrial processes, this model stands out as an investment in reliable performance and operational efficiency.