Webster, Model wjb, Standard gas components and sizes in inches – Weil-McLain WJB1 User Manual
Page 2
Webster –
Model WJB
Notes
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.
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 550-142-022/0509
2
Boiler
Model
Number
88
Series 2
Burner Input
Positive
Pressure in
Firebox
In. W.C.
Standard Burner Model
Designation
Standard Combustion
Control
Standard Control
System
Burner Motor
3450 RPM H.P.
Standard
Voltage
No. 2
Oil
GPH
Gas
MBH
Gas
Light
Oil
Gas/
Light Oil
Gas
Light
Oil
Gas/
Light Oil Gas
Light
Oil
Gas/
Light
Oil
Gas
H.P.
Light
Oil
Gas/
Light
Oil
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
Standard Gas Components and Sizes in Inches
Boiler
Model
Number
Manual
Hand
Valve
Low Gas
Pressure
Switch
Gas Pressure
Regulator
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
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