Smith Cast Iron Boilers GT Series manual Multiple Zones Valves with Bypass Valve

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GT INSTALLATION AND OPERATION INSTRUCTIONS

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Figure 26 - Multiple Zones Valves with Bypass Valve

Note: Velocity noise may be a problem when the entire output of the system pump is flowing through the zone with the highest pressure drop. Adjust the differential bypass valve to eliminate noise.

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 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.Indirect Water Heater 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.Do not operate boiler with service valves closed isolating the boiler from the expansion tank.

11.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

Zone

Ball Valve

Check Valve

Automatic

Heating

Drain Valve

Differential Pressure

Spirotrap

Fine Particulate

Expansion

Valve

 

 

Air Vent

Load

(Typ.)

Bypass Valve

Tank

 

 

Separator

 

 

 

 

 

 

 

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Contents North ELM Street WESTFIELD, MA 01085 TEL 562-9631 FAX 413 Gama Energy StarBoiler Ratings & Capacities ContentsBefore YOU Start 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 Gas Pipe Capacity Equivalent Pipe Length ChartGAS Supply Piping 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 10K=140.6 F, 42C Determining Reset Temperature HICalc= 200F, 93C 70F, 21C /70F, 21C Normal Flue Gas Composition Natural Gas Propane Boiler SET UPOperating Instructions 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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