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GB300 BOILER INSTALLATION AND OPERATION INSTRUCTIONS

CHIMNEY & VENT PIPE CONNECTIONS

WARNING: The vent installation must be in accordance with Part 7,Venting of Equipment, of the National Fuel Gas Code, ANSI Z223.1/NFPA54- latest revision or applicable provisions of the local building codes. Canadian installa-tions must comply with CAN /CGA B149.1 or .2 Installation Code. Improper venting of this boiler can result in excessive levels of carbon monoxide, which can result in severe personal injury or death!

Chimney Inspection & Sizing

If this boiler will be connected to a masonry chimney, a thorough inspection of the chimney must be performed. Ensure that the chimney is clean, properly constructed and properly sized. Table 2 lists the equivalent breeching and flue sizes required for the GB300 boilers.

Table 2 Vent Outlet, Equivalent Breeching & Chimney Size

 

Vent Outlets

Equivalent Breeching

 

& Chimney size

 

 

Boiler

# of outlets/dia. in inches

Diameter

Model

inches

mm

 

GB300-5

1@10

10

254

GB300-6

1@12

12

305

GB300-7

1@12

12

305

GB300-8

2@10

14

356

GB300-9

2@10

14

356

GB300-10

2@10

14

356

GB300-11

2@12

15

381

GB300-12

2@12

15

381

GB300-13

2@12

15

381

GB300-14

1@12, 2@10

16

406

GB300-15

4@10

17

432

GB300-16

4@10

17

432

GB300-17

4@10

17

432

GB300-18

4@10

17

432

GB300-19

4@10

17

432

NOTE: These sizes are based on a 20 foot chimney height.

When more than one appliance is connected to the same chimney flue the flue must be large enough to safely vent the combined output of all the appliances.

WARNING: If an appliance using any type of a mechanical draft system operating under positive pressure is connected to a chimney flue, never connect any other appliances to this flue. Doing so can result in the accumulation of carbon monoxide which can cause severe personal injury or death!

VENT CONNECTIONS

Always use a type B or single wall galvanized metal vent pipe the same diameter as the draft hood flue collar. Use the shortest, straightest vent system possible for the installation. If horizontal runs exceed 6 feet they must be supported at maximum 6 foot intervals with overhead hangers. The vent system should be sloped up towards the chimney at a minimum rate of 1/4 inch/foot and terminate flush with the inside of the chimney flue. Fasten each connection with at least 3 corrosion resistant sheet metal screws.

WARNING: Never modify or alter any part of the boiler’s draft hood. This includes the removal or alteration of any baffles. Never install a vent pipe of a diameter different than that of the boiler draft hood flue collar. Failure to comply with this warning can result in severe personal injury or death.

Always provide a minimum clearance of 6 inches between type C vent pipe and any combustible materials. Type B1 vent may be used, clearance between it and any combustible material must be as listed.

WARNING: Failure to maintain minimum clearances between vent connectors and any combustible material can result in a fire causing extensive property damage, severe personal injury or death!

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Smith Cast Iron Boilers GB300 warranty Chimney & Vent Pipe Connections, Vent Connections, Chimney Inspection & Sizing

GB300 specifications

The Smith Cast Iron Boilers GB300 series is renowned for its robust construction and exceptional performance, making it a preferred choice for commercial and industrial applications. This line of boilers is designed to provide reliable and efficient heating solutions for a variety of facilities, including schools, hospitals, and manufacturing plants.

One of the standout features of the GB300 series is its durable cast iron construction. Built to withstand the demands of heavy-duty operation, the cast iron material ensures longevity and resilience against thermal cycling stresses. This design not only enhances the boiler's lifespan but also ensures that it maintains optimal performance over time, even in rigorous conditions.

The GB300 series is equipped with advanced technologies that contribute to its efficiency and ease of use. For instance, the boilers incorporate a flexible firing system that allows for a range of firing rates. This adaptability ensures that the boiler can efficiently meet varying heating loads. Additionally, the use of a multi-pass heat exchanger design maximizes heat transfer, significantly improving overall efficiency and reducing fuel consumption.

Another key characteristic of the GB300 boilers is the user-friendly control system. The integrated control panel provides operators with real-time monitoring and management capabilities, allowing for precise adjustment of temperature and pressure settings. This feature not only enhances operational efficiency but also aids in maintaining safety standards.

The GB300 series also emphasizes safety, featuring multiple levels of protection, including low water cut-off, high-pressure switches, and safety valves. These safety mechanisms ensure reliable operation and minimize the risk of operational hazards, providing peace of mind for operators and facility managers.

Versatility is another remarkable attribute of the Smith Cast Iron Boilers GB300 series. These boilers can be used in various configurations, whether as a standalone unit or as part of a more extensive heating system. This flexibility makes the GB300 series suitable for diverse applications and facility sizes.

In summary, the Smith Cast Iron Boilers GB300 series is a powerful heating solution that combines durability, efficiency, and advanced technology. Its robust cast iron construction, flexible firing capabilities, and comprehensive safety features make it an ideal choice for those seeking reliable heating systems in demanding environments. The GB300 series stands out as a testament to Smith's commitment to quality and innovation in the boiler industry.