Weil-McLain Understanding Steam Boiler Controls for Efficient Operation
Page 28

Weil-McLain 88 Water and steam boilers — Series 2 — for Gas, Light Oil, & Gas/Light Oil-Fired Burners

Install steam boiler controls (continued)

Figure 40 Steam control siphon and fittings

 

Figure 41 Float-type water level control locations

 

 

 

 

 

 

 

 

 

Primary water level

Casting line

Back-up water level

Casting line

 

 

control

height above

control

height above

 

 

 

bottom of gauge

 

bottom of gauge

 

 

 

glass

 

glass

 

 

 

 

 

 

 

 

Note 1

"A"

Notes 1, 2

"B"

 

 

 

 

 

 

 

61, 63

¼"

None

—

 

 

 

 

 

1½"

61, 63

½"

 

 

 

 

 

 

 

 

 

 

 

 

2C\,"

None

—

 

 

 

 

 

 

 

 

150MD, 157MD

2"

150

¼"

 

 

 

 

 

 

 

(see Note 3)

2C\,"

61, 63

¼"

 

 

 

 

 

 

 

 

 

 

 

 

2C\,"

51-2 & 51-S-2

¼"

 

 

 

 

 

 

 

 

 

2"

None

—

 

 

 

 

 

 

 

93, 193, 94

2"

93, 193, 94

¼"

 

 

 

 

 

 

(see Note 3)

2"

61, 63

¼"

 

 

 

 

 

 

 

 

 

 

 

 

2"

51-2 & 51-S-2

¼"

 

 

 

 

 

 

 

 

51-2 & 51-S-2

1"to 1¼"

None

—

 

 

(see Note 3)

 

 

 

 

 

 

 

 

 

 

 

Notes:

1.Other manufacturer's controls providing similar function may be used, if properly located and selected.

2.Use low water cut-off function only. Pump controller function must only be handled by the primary control.

3.When pump control is used with feedwater tank, install pump control on boiler and make-up water feeder on tank. Use separate low water cutoff on boiler when back- up is needed. Do not install combination low water cutoff and feeder as back-up control on boiler. Feeder will operate before pump control operates.

Figure 42 Water level control locations (see Figure 41)

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Part No. 550-100-068/0308

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Image 28
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Contents Boiler Manual Hazard Definitions Read before proceedingRead before proceeding Contents Before installing boiler Installation must comply withBefore selecting boiler location Provide clearance around boilerRequired volume of interior spaces Combustion and ventilation air openingsCombustion air openings to inside Combustion air openings to outsideEngineered Installations Combustion air combination indoor and outdoor openingsLouvers, Grilles, and Screens Mechanical Combustion Air SupplySet boiler in place For block assemblyFor packaged boiler Assembling the block Prepare and position back sectionInstall intermediate sections If using tankless heater TI sectionsSection arrangement Boiler modelNumber Prepare boiler and test Perform hydrostatic pressure testSteam boiler Between 45 and 55 psig Install burner mounting plate on front section Complete block assemblyInsert HXT-bars Install cleanout plates Install draft hood collarConnect water boiler piping Install pipingGeneral water piping information Piping multiple boilers By-pass circulator sizingConnect steam boiler piping General steam piping informationSteam boiler piping guidelines Drawing legend & notesMinimum height of header above water line must be 24 inches Hartford loop piping for all steam boilersModel 1288 through 1888 steam 3 or 4 risers required Multiple Steam Boiler Piping Gravity Condensate Return Install jacket Before installing jacketInstall support brackets/channels Remove jacket parts from cartonsInstall jacket Install jacket front and back panels Install jacket side panelsInstall jacket top panels Install jacket trimJacket side panel placement Jacket top panel placement To pipe tankless heaters Pipe tankless heatersHot water can scald Install water boiler controls Install controlsInstall steam boiler controls Steam control locationsSteam control siphon and fittings Connect breeching and venting systems General venting informationSelect type of venting system Construct metal breechingStub vent forced draft single boiler Install burner & wiring and fill system Fuel oil piping Install fuel pipingGas piping Make final adjustments Adjust burner and damper assemblyFlue gas temperature no lower than 330F Skim steam boilersRemoval of Front Plate or Cleanout Plate Materials Handling ceramic fiber and fiberglass materialsRatings =B=RDimensions Dimensions inches ModelModel Supply & return tappings Burner lengths Dimension F 1788 1888Dimensions see lettered dimensions on opposite Parts Description Part numberParts Warranty Weil-McLain Limited Warranties

88 specifications

The Weil-McLain 88 series is a commercial cast iron boiler recognized for its durability, efficiency, and versatile design, making it a preferred choice for various heating applications. Designed primarily for commercial and industrial use, the Weil-McLain 88 combines advanced technology with proven engineering principles to deliver reliable performance and long-lasting service.

One of the standout features of the Weil-McLain 88 is its cast iron construction. Cast iron is renowned for its ability to retain heat, resulting in lower fuel consumption and more consistent heating. This robust material ensures that the boiler can withstand high temperatures and pressures, making it suitable for heavy-duty applications. The sectional design of the boiler allows for easy installation and maintenance, enabling quick access to components and minimizing downtime.

In terms of efficiency, the Weil-McLain 88 is designed to achieve high thermal efficiency ratings. The boiler employs a flue gas recirculation system, which significantly reduces heat loss and maximizes energy utilization. Additionally, its low water content provides rapid heating response times, ensuring that spaces are heated promptly, even during peak demand periods.

Another noteworthy characteristic of the Weil-McLain 88 is its versatility. The boiler can be configured for a variety of applications, including hot water heating, hydronic heating systems, and steam heating. It is compatible with multiple fuel types, including natural gas, propane, and various oil options, allowing for flexibility in fuel choice based on availability and pricing.

The Weil-McLain 88 also incorporates advanced control technologies that enhance operational efficiency. The integrated electronic controls feature diagnostic capabilities to streamline troubleshooting and maintenance, ensuring optimal performance throughout the boiler’s lifespan. Moreover, the boiler's design is compatible with modern building management systems, allowing for seamless integration into existing heating setups.

Overall, the Weil-McLain 88 series stands out for its combination of quality construction, efficient operation, and adaptability to different heating needs. Whether for a commercial building, industrial facility, or institutional application, the Weil-McLain 88 provides a reliable and efficient heating solution that meets the demands of the modern world.
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