B O I L E R F E E D S Y S T E M

D A T E : 4 / 3 / 0 3 R E P : 2 / 1 / 9 9

2 . 1 . 2 A T M O S P H E R I C T A N K D E S I G N

This tank was designed to be used only in atmospheric conditions. To avoid potential hazards, this tank should never be pressurized. Safety precautions should be taken to make sure the tank is never pressurized.

2 . 1 . 3 L O W W A T E R C O N D I T I O N

(A low water cutout is not supplied as standard on the boiler feed system, although it may have been supplied as an optional item.) Under normal operating conditions, the tank should never be allowed to be in a low water condition. If the water level falls in the tank, the make-up valve should open to satisfy the demand for water. The valve is efficiently sized to maintain the water level based on the maximum horsepower of the unit. If the low water control or probe was supplied, it should be checked to make sure the pump circuit will de-energize on a low water condition and an alarm condition occurs. When the water level has been increased above the low water control, the pump should operate normally.

2 . 1 . 4 F E E D W A T E R C O N T R O L O N T H E B O I L E R

The feed pump supplied with this unit should be electrically wired to the level control mounted on the boiler so that the boiler will maintain proper water level. Please reference the wiring diagram supplied with the manual for proper wiring. This connection should be checked before putting the boiler into operation, making sure that it is operating correctly.

2 . 1 . 5 B O I L E R F E E D P U M P

The start-up procedures found in the boiler feed pump manufacturer’s data should be followed very carefully and may include venting the pump before actual operation. Failure to follow the manufacturer’s recommendations may void the warranty of the pump and also keep the pump from operating correctly. The boiler feed pump must also be operationally tested to assure that it provides boiler feed water at the pressure and in the amount needed for safe and reliable boiler operation. The feed pump should be capable of supplying water to the boiler at least 3% above the boiler relief valve setting. A throttling valve may be required in the discharge line to keep the pump on the operating curve.

2 . 1 . 6 O T H E R C O N T R O L S

Additional controls, as required for a particular system, may also be provided. Refer to the literature on these devices included in the feed system manual. All such devices must be operationally tested to assure reliable operation of the boiler and system.

2 . 1 . 7 C H E M I C A L F E E D S Y S T E M & S O F T E N E R

Check the performance of the boiler water softener and chemical treatment system. Chemically test the feed water to be certain it complies with the recommendations of the chemical treatment consultant.

7

Page 10 Page 12
Page 11
Image 11
Bryan Boilers AH-FS151250D service manual T M O S P H E R I C T a N K D E S I G N, O W W a T E R C O N D I T I O N
Page 10 Page 12

AH-FS151250D specifications

The Bryan Boilers AH-FS151250D is a compact, high-efficiency, versatile boiler designed for a wide range of applications in commercial and industrial settings. With a focus on sustainability and energy savings, this model stands out due to its innovative features and advanced technology.

One of the primary characteristics of the AH-FS151250D is its forced circulation design, which enhances the boiler's efficiency and thermal performance. This design promotes uniform heating and prevents hot spots, which can lead to failures and inefficiencies in traditional boilers. The forced circulation system ensures rapid heat transfer, making it ideal for processes requiring quick response times.

Another significant feature of the AH-FS151250D is its modular construction, allowing for easy installation and flexibility in operation. The boiler's compact footprint makes it suitable for facilities with limited space, while its modularity offers scalability. This means that users can easily expand their heating capacity by adding more units as needed.

The AH-FS151250D also boasts advanced control systems that provide precise management of operating conditions. These controls can optimize fuel use, enhance efficiency, and support a variety of fuels, including natural gas, propane, and other gaseous fuels. The integration of sophisticated automation technology helps operators maintain optimal performance while reducing operational costs.

Additionally, the Bryan Boilers AH-FS151250D incorporates advanced insulation materials that improve thermal retention and minimize energy loss. This feature contributes to the boiler's overall efficiency, further supporting sustainability efforts in industrial applications.

Durability is a hallmark of the AH-FS151250D, with a robust construction designed to withstand the rigors of continuous operation. The materials used are resistant to corrosion and high temperatures, ensuring a long lifespan with minimal maintenance requirements.

In summary, the Bryan Boilers AH-FS151250D combines efficiency, flexibility, and durability, making it an excellent choice for various commercial and industrial heating applications. Its innovative features, such as forced circulation, modular design, and advanced control technologies, position it as a leader in the boiler market, supporting users in their quest for sustainable and effective energy solutions.
Top Page Image Contents