Weil-McLain SGO-W SERIES 3 OIL-FIRED NATURAL DRAFT WATER BOILER manual To pipe tankless heater

Page 17

Connect Tankless Heater Piping CONTINUED

Studies have indicated that

TANKLESS HEATER RATINGS TABLE

dangerous bacteria can form in

 

 

 

 

potable water distribution system if certain minimum

BOILER

 

INTERMITTENT

INLET

water temperatures are not maintained. Contact local

 

MODEL

HEATER

DRAW RATINGS

AND OUTLET

health department for more information.

NUMBER

NUMBER

(GPM)*

TAPPING SIZES

 

To pipe tankless heater:

SGO-3W 35-S-29

3.50

¾"

1. Size piping no smaller than tankless heater

 

 

 

 

SGO-4W 35-S-29

3.75

¾"

inlet and outlet.

 

2. Following controls (furnished by others) must

 

 

 

 

SGO-5W 35-S-29

4.00

¾"

be installed:

 

 

 

 

 

 

 

SGO-6W

35-S-29

4.00

¾"

a.

Automatic mixing valve. See FIGURE 14.

 

(Read

at bottom of p. 16)

SGO-7W

35-S-29

4.00

¾"

 

 

 

 

 

 

SGO-8W

35-S-29

4.00

¾"

 

 

 

b.

Flow regulating valve. Size according to

 

 

 

 

SGO-9W

35-S-29

4.00

¾ "

intermittent draw of tankless heater. See

Table at right. Follow valve manufacturer’s *

Gallons of water per minute heated from 40°F to 140°F with

instructions to install.

200°F boiler water temperature. Tested in accordance with

3. Additional anti-scald devices may be installed at

I=W=H Testing and Rating Standard for Indirect Tankless Water

Heaters Tested with Boilers.

each hot water faucet, bath and shower outlet.

 

4.In hard water areas, soften cold domestic supply water to heaters to prevent lime build-up.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Tankless Heater

 

These single wall heat exchangers

 

 

 

 

 

 

 

 

Control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

comply with National Standard

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Flow

 

 

Plumbing Code provided that:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Regulating

 

 

Boiler water (including

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Valve

 

 

 

additives) is practically non-

 

 

 

 

 

 

 

 

 

 

 

toxic, having a toxicity rating

Cold

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

or class of 1, as listed in

Water

 

 

 

 

 

 

 

 

 

 

 

 

 

Clinical Toxicology of

Supply

 

 

 

 

 

 

 

Mixed

 

 

Commercial Products.

 

 

 

 

 

 

 

 

Boiler water pressure is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

limited to max. 30 psig by

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

approved water relief valve.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12" Min.

 

 

 

 

 

 

 

 

 

 

 

 

Hot

Cold

Automatic

Mixing

Valve

Tankless Heater Piping

FIGURE 14

17

Image 17
Contents This Manual Includes Installation Start-Up Boiler Parts When Calling or Writing About the Boiler Symbol DefinitionsRead This Page First Hazard DefinitionsTable of Contents Installations must comply with Before Installing BoilerBefore selecting boiler location Provide clearances around boiler see FigureProvide air for combustion and ventilation Do not install exhaust fan in boiler roomLay a foundation, if needed Boiler Foundation Size TablePlace boiler Install Non-Packaged BoilerFiberglass wool and ceramic fiber materials Perform hydrostatic pressure test Tankless heater, if usedControl Tapping Table Install jacket sizes 7 through 9 onlyInstall boiler controls Install burner also refer to instructions packed with burner Minimum Chimney Size Table Connect BreechingGeneral chimney requirements Connect Breeching Connect Water Piping Install pipingGeneral piping information Diaphragm expansion tank FigureExpansion Tank Zoning with zone valves Piping Multiple ZonesZoning with circulators Connect Water Piping Hot Water Can Scald Connect Tankless Heater PipingUse with refrigeration systems Tankless Heater Ratings Table To pipe tankless heaterGeneral wiring requirements Connect WiringThermostat wiring Burner wiringConnect Wiring Oil piping connection at burner Connect Oil PipingGeneral oil piping requirements Fill the system Start-UpTips for water systems To place in operationCheck off steps as completed Check-Out ProcedureAppendix Burner adjustments for a boilersDescription Parts ListParts Drawing Dimensions DimensionsIntermediate SGO-W Gold OIL Water Boiler Ratings Ratings

SGO-W SERIES 3 OIL-FIRED NATURAL DRAFT WATER BOILER, 550-141-827/1201 specifications

The Weil-McLain SGO-W Series 3 Oil-Fired Natural Draft Water Boiler is a robust and efficient solution designed for residential heating needs. This boiler stands out for its exceptional construction and advanced engineering, ensuring reliability and longevity for homeowners.

One of the core features of the SGO-W Series 3 is its cast iron heat exchanger, which provides excellent thermal efficiency. The boiler is designed to retain heat for extended periods, allowing for reduced energy consumption and lower heating bills. The heavy-duty cast iron sections are built to withstand high pressures and temperatures, ensuring durability in various conditions.

The SGO-W Series 3 is equipped with a natural draft design, allowing it to utilize the natural upwards movement of flue gases. This design eliminates the need for complicated power venting systems, making installation simpler and more cost-effective. It also enhances the boiler's efficiency by promoting better combustion processes in the burner.

Another significant characteristic is its versatile fuel options. The SGO-W Series 3 accommodates No. 2 fuel oil, making it a viable option for users who prefer or require oil heating. This versatility is crucial for homeowners in areas where natural gas is not available or preferred.

The boiler operates at a high efficiency rate, contributing to lower emissions and compliance with environmental standards. Its energy-efficient design not only benefits the environment but also allows for significant savings over time. The unit is also equipped with a reliable and easily adjustable fuel burner, providing flexibility in managing heating output to suit various residential heating demands.

For safety and convenience, the Weil-McLain SGO-W Series 3 features an electronic ignition system that ensures reliable starting and operation, even in adverse weather conditions. Additionally, the boiler is designed for easy serviceability, with accessible components allowing for quick maintenance and repairs, ensuring that homeowners can rely on continual performance and minimal downtime.

In summary, the Weil-McLain SGO-W Series 3 Oil-Fired Natural Draft Water Boiler is a powerful and efficient heating solution, combining advanced technologies with robust construction. Its cast iron heat exchanger, natural draft design, fuel flexibility, high efficiency, and convenient features make it an excellent choice for residential heating applications, supporting homeowners' comfort and reducing energy costs.