Weil-McLain 88 manual Before installing boiler, Installation must comply with

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

Before installing boiler

Installation must comply with —

1.State, provincial and local plumbing, heating and electrical codes.

2.Regulations of servicing utilities.

3.ASME Section IV, Low Pressure Boiler and Pressure Vessel Code.

4.National Fuel Gas Code, ANSI/NFPA 54, when applicable.

5.National codes where applicable.

Before selecting boiler location

1.Check for nearby connections to:

a.Fuel supply.

b.Electrical power.

c.System water or steam piping.

d.Venting systems - see page 29.

e.Combustion and ventilation air supply — see page 5.

2.Check area around boiler. Remove any combustible materials, gasoline and other flammable vapors and liquids.

Failure to keep boiler area clear and free of combustible materials, gasoline and other flammable liquids and vapors can result in severe personal injury, death and substantial property damage.

Provide clearance around boiler

1.Provide minimum clearances to combustible materials:

•Boiler top — 24 inches.

•Boiler front — 48 inches.

•Boiler flue — 9 inches.

•Boiler rear — 9 inches.

•Boiler sides — 6 inches.

•Single-wall vent pipe – 18 inches.

•Double-wall vent pipe – refer to vent pipe manufacturer's recommendations for vent pipe clearances.

2.Boiler may be installed on combustible flooring.

3.See page 36 for boiler dimensions.

Flue pipe/breeching clearances take precedence over jacket clearances.

4.Provide minimum clearances for servicing:

•Left side — for cleaning and tankless heater removal – 39 inches.

•Rear — for breeching — 36 inches.

•Allow sufficient space on remaining sides for cleaning, servicing and burner installation. See burner literature for length and recommended service clearances.

Lay a foundation, if needed

1.Floor construction and condition must be suitable for weight of boiler when filled with water. See page 36 for approximate boiler operating weight.

2.A level concrete or brick foundation, constructed per Figure 1 and Figure 2 is required when:

a.A floor could possibly become flooded.

b.Non-level conditions exist.

4

Figure 1 Boiler foundation, when required

Figure 2 Boiler foundation (see Figure 1)

Boiler model

Length, L, minimum

number

(inches)

 

 

488

33

 

 

588

41

 

 

688

49

 

 

788

57

 

 

888

65

 

 

988

73

 

 

1088

81

 

 

1188

89

 

 

1288

97

 

 

1388

105

 

 

1488

113

 

 

1588

121

 

 

1688

129

 

 

1788

137

 

 

1888

145

 

 

Part No. 550-100-068/0308

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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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