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GT INSTALLATION AND OPERATION INSTRUCTIONS

Figure 23 - Single Boiler with Indirect Hot Water Heater

NOTES:

1.All piping and pumps must be supported so that no loads or stresses are applied to boiler heat exchanger. To make boiler service easy use Unions or flexible Vibration Isolation Kit.

2.This boiler is provided with a 1/8" vent that is not intended for continuous system venting.

3.For continuous system venting use a cast iron air scoop, for excessive air conditions use a Spirovent. Do not fi re boiler until all air is purged from the system piping. Heat exchanger damage caused by air is not covered by warranty.

4.See Table 3 for boiler pump flow requirements. This pump is wired to terminals C1-L2.

5.See Table 3 for Indirect Water Heater pump flow requirements. This pump is wired to terminals AP-L2.

6.Set pressure reducing valve to 12 PSI.

7.Use 30 psi relief valve max. Locate where discharge will not cause injury or damage. Follow local codes.

8.Add an inhibitor to protect system. (CHP from Fernox)

9.Boiler circuit piping must be sized large enough to handle maximum flow through unit.

10.Suggested piping. When installing an indirect water heater consult manufacturer’s manual for full details.

11.Do not install any valves between the Vacuum Relief valve and the tank.

12.Do not operate boiler with service valves closed isolating the boiler from the expansion tank.

13.Failure to follow these instructions will result in heat exchanger damage: All flux and contaminants must be flushed from piping before connecting boiler. Do not connect this boiler to older systems with cast iron radiation without installing a fine particulate separator. TYP: Spirotrap Junior Model TDN 125 FT. Do Not use non-oxygen barrier radiant tubing.

Notice: This drawings show suggested piping configuration and valving. Check with local codes and ordinances for specific requirements.

Pump

Gate Valve Ball Valve

 

 

 

 

 

 

 

 

 

 

Backflow-Prevention

Differential Pressure

Spirotrap

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pressure

Check Valve

Pressure

Thermometer Union Automatic

Heating

Drain Valve

 

Fine Particulate

 

 

Reducing

 

 

Relief Valve

Air Vent

Load

(Typ.)

Device

Bypass Valve

 

 

 

 

Separator

 

 

 

Valve

 

 

 

 

 

 

 

 

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Smith Cast Iron Boilers GT Series manual Single Boiler with Indirect Hot Water Heater

GT Series specifications

Smith Cast Iron Boilers GT Series has become a benchmark in the hydronic heating industry, renowned for its exceptional performance, durability, and efficiency. This series is designed to cater to diverse heating needs, making it a popular choice among both residential and commercial applications.

One of the standout features of the GT Series is its robust cast iron construction. The cast iron sections offer superior thermal mass, allowing for better heat retention and distribution. This characteristic ensures that the boiler operates efficiently, maintaining comfortable temperatures even during extreme cold weather conditions. The engineers at Smith have meticulously designed each section to provide maximum strength and longevity, resulting in a boiler that can withstand the test of time.

The GT Series also incorporates advanced combustion technology. It utilizes a high-efficiency burner that optimizes fuel consumption, resulting in lower operating costs for homeowners and businesses alike. The boiler is engineered to accommodate a variety of fuel types, including natural gas and propane, giving users flexibility in their energy choices. This adaptability not only enhances efficiency but also promotes environmental sustainability by allowing for the use of cleaner fuel sources.

Another notable technology featured in the GT Series is the electronic control system. This system simplifies boiler operation and enhances user convenience. The intuitive interface provides real-time feedback and diagnostics, making it easier for technicians to perform maintenance and troubleshoot any issues that may arise. Additionally, the boiler’s modulating operation adjusts the burner output according to the heating demand, further improving efficiency and comfort.

Moreover, the GT Series is designed with user-friendly installation in mind. Its compact footprint allows for easy integration into existing heating systems, minimizing space requirements. Additionally, the boiler is equipped with convenient access points for maintenance, ensuring that servicing is straightforward and can be performed without extensive downtime.

Lastly, the Smith Cast Iron Boilers GT Series is designed to meet stringent safety and performance standards. Featuring multiple safety controls and systems, it provides peace of mind for users. With a commitment to quality, efficiency, and performance, the GT Series stands out as a leading solution for hydronic heating, catering to the evolving needs of today’s energy-conscious consumers.