Weil-McLain WJB1, WJB2 User Manual

®

88

Water & Steam Boilers – Series 2

Flame retention burners for

Gas, Light Oil, & Gas/Light Oil firing

Burner Specification

& Data Sheet

Models WJB1 & WJB2

Gas burner

Webster

Models WJB1 & WJB2

Gas/light oil burner

W

E

B

H

Part Number 550-142-022/0509

L

C

A

D

Webster – Model WJB

Boiler

Model

Number

88

Series 2

488R 6.9 996 0.68 WJB1G-03 WJB1O-03 WJB1C-03 RM7897A R7184A RM7897C A A A 1/3 1/3 1/3 See notes

488 7.0 1010 0.70 WJB1G-03 WJB1O-03 WJB1C-03 RM7897A R7184A RM7897C A A A 1/3 1/3 1/3 See notes

588 9.4 1357 0.60 WJB1G-05 WJB1O-05 WJB1C-05 RM7897A R7184A RM7897C LFS LFS LFS 1/2 1/2 1/2 See notes

688 11.8 1701 0.58 WJB1G-07 WJB1O-07 WJB1C-07 RM7897A R7184A RM7897C LFS LFS LFS 3/4 3/4 3/4 See notes

788 14.2 2046 0.65 WJB1G-07 WJB1O-07 WJB1C-07 RM7897A R7184A RM7897C LFS LFS LFS 3/4 3/4 3/4 See notes

888 16.6 2382 0.66 WJB2G-07 WJB2O-10 WJB2C-10 RM7897A RM7897A RM7897C LFS LFS LFS 3/4 1 1 See notes

988R 17.2 2482 0.54 WJB2G-10 WJB2O-10 WJB2C-10 RM7897A RM7897A RM7897C LFS LFS LFS 1 1 1 See notes

988 18.8 2737 0.63 WJB2G-10 WJB2O-10 WJB2C-10 RM7897C RM7897A RM7897C LFS LFS LFS 1 1 1 See notes

1088R 20.0 2887 0.68 WJB2G-10 WJB2O-15 WJB2C-15 RM7897C RM7897A RM7897C LFS LFS LFS 1 1 1/2 1 1/2 See notes

1088 21.5 3082 0.78 WJB2G-10 WJB2O-15 WJB2C-15 RM7897C RM7897A RM7897C LFS LFS LFS 1 1 1/2 1 1/2 See notes

1188 23.5 3428 0.78 WJB2G-15 WJB2O-15 WJB2C-15 RM7897C RM7897A RM7897C LFS LFS LFS 1 1/2 1 1/2 1 1/2 See notes

1288 26.0 3773 0.76 WJB2G-15 WJB2O-15 WJB2C-15 RM7897C RM7897A RM7897C LFS LFS LFS 1 1/2 1 1/2 1 1/2 See notes

1388 28.5 4119 0.77 WJB2G-20 WJB2O-15 WJB2C-20 RM7897C RM7897A RM7897C LFS LFS LFS 2 2 2 See notes

1488 31.0 4464 0.78 WJB2G-20 WJB2O-15 WJB2C-30 RM7897C RM7897A RM7897C LFS LFS LFS 2 2 3 See notes

1588 33.0 4809 0.73 WJB2G-20 WJB2O-30 WJB2C-20 RM7897C RM7897A RM7897C LFS LFS LFS 2 3 2 See notes

1688R 34.5 4979 0.68 WJB2G-30 WJB2O-30 WJB2C-30 RM7897C RM7897A RM7897C LFS LFS LFS 3 3 3 See notes

1688 35.5 5155 0.74 WJB2G-30 WJB2O-30 WJB2C-30 RM7897C RM7897C RM7897C LFS LFS LFS 3 3 3 See notes

1788 38.0 5494 0.82 WJB2G-30 WJB2O-30 WJB2C-30 RM7897C RM7897C RM7897C LFS LFS LFS 3 3 3 See notes

1888 40.5 5845 0.80 WJB2G-30 WJB2O-30 WJB3C-50 RM7840L RM7897C RM7840L MOD LFS MOD 3 3 5 See notes

Standard Voltage Notes: 1/3 HP blower motor through ¾ HP – 120V/60/3 phase, 1 HP blower motor – 240V/60/3 phase, 1-½ HP blower motor through 5 HP- 240V/60/3 phase

Burner Input

No. 2

Oil

GPH

Gas

MBH

Positive

Pressure in

Firebox
In. W.C.

Standard Burner Model

Designation

Gas

Light

Oil

Gas/

Light Oil

Standard Combustion

Control

Gas

Light

Oil

Gas/

Light Oil

Standard Control

System

Gas/

Light

Gas

Oil

Light

Oil

Burner Motor

3450 RPM H.P.

Light

Oil

Gas/
Light

Gas
H.P.

Standard

Voltage

Oil

Standard Gas Components and Sizes in Inches

Boiler
Model

Number

488R 1-¼ Optional 1-¼ 1 n/a n/a 1-¼ 1 Optional

488 1-¼ Optional 1-¼ 1 n/a n/a 1-¼ 1 Optional
588 1-¼ Optional 1-¼ n/a 1-¼ n/a 1-¼ 1-¼ Optional
688 1-½ Optional 1 ½ n/a 1-½ n/a 1-½ 1-½ Optional
788 1-½ Optional 1 ½ n/a 2 n/a 2 2 Optional
888 1-½ Optional 1 ½ n/a 2 n/a 2 2 Optional

988R 1-½ Optional 1 ½ n/a 2 n/a 2 2 Optional

988 1-½ Standard 1 ½ n/a 2 n/a 2 2 Standard

1088R 1-½ Standard 1 ½ n/a 2 n/a 2 2 Standard

1088 2 Standard 2 n/a 2 n/a 2 2 Standard

1188 2 Standard 2 n/a 2 n/a 2 2 Standard
1288 2-½ Standard 2-½ n/a 2 n/a 2-½ 2 Standard
1388 2-½ Standard 2-½ n/a 2 n/a 2-½ 2 Standard
1488 2-½ Standard 2-½ n/a 2 n/a 2-½ 2 Standard
1588 2-½ Standard 2-½ n/a 2 n/a 2-½ 2 Standard

1688R 2-½ Standard 2-½ n/a 2 n/a 2-½ 2 Standard

1688 2-½ Standard 2-½ n/a 2 2” 2-½ 2 Standard
1788 2-½ Standard 2-½ n/a 2-½ 2-½ 2-½ 2-½ Standard
1888 2-½ Standard 2-½ n/a 2-½ 2-½ 2-½ 2-½ Standard

Notes

Manual

Hand
Valve

Low Gas
Pressure

Switch

Gas Pressure

Regulator

Burner capacities listed for elevations up to 2,000 feet. For higher elevations, consult local Weil-McLain distributor/agent or sales office.1.

Light Oil ratings based on No. 2 fuel oil with heating value of 140,000 Btu per gallon.2.
Gas ratings based on natural gas with heating value of 1,000 Btu per cubic foot and specific gravity of 0.60. Gas burners for other gases are available. Consult local 3.

Weil-McLain distributor/agent or sales office.
Boiler-burner unit to be adjusted to achieve +0.10 inches W.C. pressure at the flue collar, resulting in positive pressure in firebox as listed.4.

Diaphragm

Operating
Gas Valve

Motorized
Operating
Gas Valve

Motorized Operat-

ing Gas Valve w/

Proof of Closure

Safety Gas

Valve

Manual

Checking

Gas Valve

High Gas

Pressure

Switch

Minimum gas pressures listed are subject to variations due to job conditions. Gas burners for other gas pressures are available. Consult local Weil-McLain distribu-5.
tor/agent or sales office.

Gas orifice pressures shown are for initial start-up. Final pressures should be determined after checking actual gas flow and combustion readings.6.

Part Number 550-142-022/05092