Weil-McLain Official Manual for 88 Boiler: Installation, Start-Up, Maintenance, and Parts
Page 35

Boiler manual: • Installation • Start-Up • Maintenance • Parts

Ratings

Boiler

I=B=R

Gross

Net I=B=R ratings

Boiler

 

Combustion

Thermal

Net

Flue

Positive

Flue

Boiler

Packaged

model

burner

I=B=R

 

 

 

 

H.P.

 

efficiency

efficiency

firebox

gas

pressure

outlet

water

boiler

number

capacity

output

 

 

 

 

 

 

 

 

 

 

volume

volume

in firebox

diameter

content

weight

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Light oil

Gas

MBH

Steam

 

Steam

Water

 

 

Oil

Gas

Oil

Gas

Cubic

CFM

Inches

Inches

Gallons

Pounds

 

 

GPH

MBH

 

Sq. Ft

 

MBH

MBH

 

 

 

 

 

 

feet

 

W.C.

 

 

 

Notes:

2, 3

2, 4

5, 6

8

 

8

8

—

 

—

—

—

—

—

7

9

—

—

—

1, 10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

488R

6.9

996

827

2,583

 

620

719

24.7

 

87.5

84.8

85.6

83.1

11.02

376

0.60

10

109

2860

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

488

 

7.0

1,010

839

2,621

 

629

730

25.1

 

87.5

84.8

85.6

83.1

11.02

370

0.60

10

109

2860

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

588

 

9.4

1,356

1,126

3,521

 

845

979

33.6

 

87.0

84.4

85.6

83.1

14.45

507

0.63

10

132

3340

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

688

 

11.8

1,701

1,413

4,469

 

1,072

1,229

42.2

 

86.7

84.1

85.6

83.1

18.08

639

0.65

10

155

3820

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

788

 

14.2

2,046

1,700

5,463

 

1,311

1,478

50.8

 

86.5

83.9

85.6

83.1

21.61

772

0.67

12

178

4345

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

888

 

16.6

2,382

1,987

6,427

 

1,543

1,728

59.4

 

86.3

83.7

85.6

83.1

25.14

906

0.69

12

201

4925

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

988R

17.2

2,482

2,062

6,671

 

1,601

1,793

61.6

 

86.2

83.7

85.6

83.1

28.67

1,031

0.70

14

224

5600

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

988

 

18.8

2,737

2,274

7,358

 

1,766

1,977

67.9

 

86.2

83.7

85.6

83.1

28.67

954

0.70

14

224

5600

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1088R

20.0

2,887

2,399

7,763

 

1,863

2,086

71.7

 

86.2

83.6

85.6

83.1

32.20

1,184

0.71

14

247

6130

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1088

 

21.5

3,082

2,561

8,283

 

1,988

2,227

76.5

 

86.2

83.6

85.6

83.1

32.20

1,101

0.71

14

247

6130

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1188

 

23.5

3,428

2,848

9,213

 

2,211

2,477

85.1

 

86.1

83.5

85.7

83.1

35.76

1,299

0.72

14

270

6695

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1288

 

26.0

3,773

3,135

10,147

 

2,434

2,726

93.7

 

86.0

83.5

85.7

83.1

39.26

1,443

0.73

14

293

7260

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1388

 

28.5

4,119

3,422

11,071

 

2,657

2,976

102.2

 

86.0

84.4

85.7

83.1

42.79

1,588

0.74

14

316

7890

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1488

 

31.0

4,464

3,709

12,000

 

2,880

3,225

110.8

 

86.0

83.4

85.7

83.1

46.32

1,735

0.75

16

339

8410

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1588

 

33.0

4,809

3,996

12,925

 

3,102

3,475

119.4

 

85.9

83.3

85.7

83.1

49.85

1,854

0.76

16

362

9005

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1688R

34.5

4,979

4,137

13,383

 

3,212

3,597

123.6

 

85.9

83.3

85.7

83.1

53.38

2,003

0.77

16

385

9525

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1688

 

35.5

5,155

4,283

13,854

 

3,325

3,724

127.9

 

85.9

83.3

85.7

83.1

53.38

1,945

0.78

16

385

9525

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1788

 

38.0

5,494

4,570

14,783

 

3,548

3,974

136.5

 

85.9

83.3

85.7

83.1

56.91

2,152

0.79

18 *

408

9780

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1888

 

40.5

5,845

4,857

15,713

 

3,771

4,123

145.1

 

85.9

83.3

85.7

83.1

60.44

2,303

0.80

18 *

431

10775

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.

See below to specify complete model number.

 

 

 

5.

Gross I=B=R ratings have been determined under the I=B=R provision

 

 

 

 

 

 

 

 

 

 

 

 

 

governing forced draft boiler-burner units.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6.

Based on average water temperature of 170°F in heat distributing

 

 

 

 

 

 

 

 

 

 

 

 

 

units.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7. Flue gas volume at outlet temperature.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8.

Net I=B=R ratings are based on net installed radiation of sufficient

 

 

 

 

 

 

 

 

 

 

 

 

 

quantity for the requirements of the building.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Nothing need be added for normal piping and pick-up.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Water ratings are based on a piping and pick-up allowance of 1.15.

 

 

 

 

 

 

 

 

 

 

 

 

 

Steam ratings are based on the following allowances: 488 – 588 =

 

 

 

 

 

 

 

 

 

 

 

 

 

1.333; 688 = 1.323; 788 = 1.301; 888 = 1.289; 988 – 1888 = 1.288.

 

 

 

 

 

 

 

 

 

 

 

 

 

An additional allowance should be made for gravity hot water systems

2. Burner input based on maximum of 2,000 feet altitude. For other

 

or for unusual piping and pick-up loads.

 

 

 

 

altitudes, consult Weil-McLain distributor/agent or sales office.

 

 

Consult local Weil-McLain distributor/agent or sales office.

 

3.

No. 2 fuel oil — Commercial Standard Spec CS75-56. Heating

9.

With 0.10" W.C. positive pressure at flue collar.

 

 

 

value of oil = 140,000 Btu per gallon.

 

 

 

 

 

 

 

 

 

 

 

 

 

10. Water boilers tested for 80 PSIG, ASME water working pressure.

4.

Gas pressure required at burner gas train inlet for rated burner

 

Steam boilers tested for 15 PSIG, ASME steam working pressure.

 

input; based on 1,000 Btu per cubic foot natural gas, specific

 

 

 

 

 

 

 

 

 

 

 

 

 

 

gravity of 0.60. Refer to burner manual for required pressure.

 

*

Flue collar connection is oval, 16Z\," x 19M\,"

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Part No. 550-100-068/0308

35

Page 34 Page 36
Image 35
Page 34 Page 36
Contents Boiler Manual Read before proceeding Read before proceedingHazard Definitions Contents Provide clearance around boiler Before installing boilerInstallation must comply with Before selecting boiler locationCombustion air openings to outside Required volume of interior spacesCombustion and ventilation air openings Combustion air openings to insideMechanical Combustion Air Supply Engineered InstallationsCombustion air combination indoor and outdoor openings Louvers, Grilles, and ScreensFor packaged boiler For block assemblySet boiler in place Prepare and position back section Assembling the blockIf using tankless heater TI sections Install intermediate sectionsNumber Boiler modelSection arrangement Steam boiler Between 45 and 55 psig Perform hydrostatic pressure testPrepare boiler and test Insert HXT-bars Complete block assemblyInstall burner mounting plate on front section Install draft hood collar Install cleanout platesGeneral water piping information Install pipingConnect water boiler piping By-pass circulator sizing Piping multiple boilersGeneral steam piping information Connect steam boiler pipingHartford loop piping for all steam boilers Steam boiler piping guidelinesDrawing legend & notes Minimum height of header above water line must be 24 inchesModel 1288 through 1888 steam 3 or 4 risers required Multiple Steam Boiler Piping Gravity Condensate Return Remove jacket parts from cartons Install jacketBefore installing jacket Install support brackets/channelsInstall jacket Install jacket trim Install jacket front and back panelsInstall jacket side panels Install jacket top panelsJacket side panel placement Jacket top panel placement Hot water can scald Pipe tankless heatersTo pipe tankless heaters Install controls Install water boiler controlsSteam control locations Install steam boiler controlsSteam control siphon and fittings Construct metal breeching Connect breeching and venting systemsGeneral venting information Select type of venting systemStub vent forced draft single boiler Install burner & wiring and fill system Gas piping Install fuel pipingFuel oil piping Skim steam boilers Make final adjustmentsAdjust burner and damper assembly Flue gas temperature no lower than 330FHandling ceramic fiber and fiberglass materials Removal of Front Plate or Cleanout Plate Materials=B=R Ratings1788 1888 DimensionsDimensions inches Model Model Supply & return tappings Burner lengths Dimension FDimensions see lettered dimensions on opposite Description Part number PartsParts Weil-McLain Limited Warranties Warranty

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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