Smith Cast Iron Boilers GT Series manual Vertical Direct Vent Systems, Debris Screen Installation

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GT INSTALLATION AND OPERATION INSTRUCTIONS

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Figure 13 - Wall Penetration Detail

The debris screen provided with the boiler must be installed in the concentric terminal as shown in Figure 14.

Figure 14 - Debris Screen Installation

VERTICAL DIRECT VENT SYSTEMS

Read the information in the GENERAL VENTING GUIDELINES section before proceeding.

The GT can be vented vertically directly through the building’s roof or through a dormant chimney used as a chase, Figures 15 & 16. All roof penetrations must be properly flashed and sealed.

WARNING: Under no conditions, shall this boiler vent gases directly into a masonry chimney nor can an active chimney be used as a chase. Failure to comply with this warning can result in excessive levels of carbon monoxide which can cause severe personal injury or death!

Separate Air Intake and Vent Terminals

The discharge of the vent terminal must point away from the pitch of the roof. The vent terminal must be a minimum of 18 in, 457 mm, above the air inlet terminal. The vent terminal must also be 24 in, 610 mm, above any roof surface within a horizontal distance of 10 ft, 3 m. The air inlet terminal must always be a minimum of 12 in, 305 mm, plus the snow allowance above any surface that will support snow, however a snow allowance of 24 in, 610 mm, is highly recommended Figures 15 & 16.

Consult your weather office for the maximum typical snowfall for your region. For example, in Boston MA the maximum typical snowfall is 12 in, 305 mm. Therefore the inlet must be 24 in, 610 mm, above any surface that will support snow. The exhaust must be 42 in, 1067 mm, above this surface.

Figure 15 - Two Pipe Through the Roof

The horizontal centerline distance between the inlet and exhaust terminals must be a minimum of 4 in, 102 mm. If the horizontal distance between the inlet and exhaust is more than 12 in, 305 mm, increase the vertical separation by the same amount. For example, if the horizontal separation is 24 in, 610 mm,

aminimum vertical separationof 30 in, 762 mm, is required, 18 in, 457 mm, + 12 in, 305 mm, = 30 in, 762 mm. If the horizontal distance is greater then 6 ft, 1.8 m no additional vertical spacing is required. The vertical separation is never required to be greater then 36 in, 914 mm.

A dormant chimney can be used as a chase through which the air intake and vent pipes can be run, Figure

16.The chimney must not be connected to a fi replace, water heater or any other heating appliance.

Figure 16 - Two Pipe Using Dormant Chimney

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Contents North ELM Street WESTFIELD, MA 01085 TEL 562-9631 FAX 413 Gama Energy StarContents Before YOU StartBoiler Ratings & Capacities Input vs Elevation Graph Boiler LocationGeneral Venting Guidelines Combustion AIRHorizontal Direct Vent Systems Horizontal Terminal Locations Separate Air Intake and Vent TerminalsWall Penetration Detail External Air Intake and Vent Systems Vertical Direct Vent Systems Debris Screen InstallationConcentric Through the Roof Condensate DrainGeneral Plumbing Guidelines Relief Valve Piping Pressure Relief ValvePrimary Loop Plumbing Multiple Boiler Primary LoopSecondary Loop Plumbing Low Water Cut Off, LwcoSingle Boiler with Indirect Hot Water Heater Multiple Boiler Installation Multiple Zones Using Circulators Multiple Zones Valves with Bypass Valve Equivalent Pipe Length Chart GAS Supply PipingGas Pipe Capacity Thermostat Installation Electrical WiringMultiple Zones w/ Taco Valve Controller Models ZVC403 to ZVC Multiple 4 Wire Zone Valves GT Installation and Operation Instructions GT Installation and Operation Instructions Boiler Ladder Diagram Boiler Connection Diagram Boiler Modulation Sentry 2100T ControllerIndirect Water Heaters Sentry DisplayRecommended Settings Setting Sentry 2100T controlRecommend System Temperatures Outdoor Sensor 10KDetermining Reset Temperature HICalc = 200F, 93C 70F, 21C /70F, 21C=140.6 F, 42C Boiler SET UP Operating InstructionsNormal Flue Gas Composition Natural Gas Propane Ignition System Gas Valve Layout, GT-150Operational Flow Chart For Your Safety Read Before Operating Gas Pressure Adjustment Boiler Checking & AdjustmentInput Rate Main Burner FlameBoiler Maintenance Aquastat High Limit Wall Hung ConversionTemperature is Trouble ShootingBurner shuts off Before set-pointAir Switch is Closed Air Switch is OpenIndicates that Ignition SequenceFenwal Two Flashes onThree Flashes on Boiler will not stayHousing Creating a noise Residence. This is not a warranty issueWarranty issue Sentry ControllerGT Installation and Operation Instructions Replacement Parts Exploded View Models GT150 and GT200 Replacement Parts ListReplacement Parts Exploded View Model GT400 GT Installation and Operation Instructions WESTCAST, INC

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.
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