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

Burner Specification and Data Sheet

Gas Control Systems:7.

A (OO): On-off operation, low fire start, high fire run. Single-position air, adjustable opening gas valve.
L (LFS): On-off operation, low fire start, high fire run. Two-position air controlled by damper arm on motorized gas valve.
H (LHL): Low-high-low-off firing conditions. Two-position air controlled by damper arm on motorized gas valve.
M (MOD): On-off operation, with proven low fire start and full modulating firing conditions with combustion air control.
Proportional motor drives fuel metering valve and combustion air damper according to the firing conditions.
Fixed damper pre-purge on 488-988R, open damper pre-purge on 988-1888.

Gas

Pressure

required at

Pressure

Boiler

drop thru

Model

Number

Standard Oil Pump Location:
488R through 1488 Gas / Oil – Integral to Burner, 1588 through 1888 Remote Pump
488R through 1688 Oil – Integral to Burner, 1788 and 1888 Remote Pump

gas train

Inches

W.C.

488R 2.3 2.4 5.5 14 1/4 1 1-1/4 1-5/16 1 1 4.00 Hago P 45º 300 100 22R220D 45

488 2.3 2.5 5.7 14 1/4 1-13/16 1-7/16 1-9/16 1-3/16 1 4.00 Hago P 45º 305 100 22R220D 45
588 3.7 2.8 7.0 28 1/2 13/16 1-7/8 1-7/8 1-3/16 1 5.50 Hago P 45º 290 100 22R220D 45
688 2.7 3.2 6.2 28 7/16 7/8 1-3/16 1-5/16 1 1 7.00 Hago P 45º 290 100 22R220D 45
788 2.9 2.8 5.1 28 1/2 1-3/8 1-13/16 1-7/8 1-1/2 2 4.25 Hago P 60º 280 100 22R221D 70
888 2.55 1.8 4.5 28 5/8 1-1/2 1 1-3/4 1-1/2 1 10.00 Hago P 45º 280 100 22R221D 70

988R 3.15 1.7 4.9 28 5/8 1-3/4 1-1/8 1-7/8 1-3/4 1 10.00 Hago P 45º 300 100 22R221D 70

988 3.8 1.8 5.8 28 1-3/16 1-5/16 1-1/4 1-1/2 1-3/16 1 11.00 Hago P 45º 290 100 22R221D 70

1088R 4.4 2.2 6.6 28 5/8 1-1/8 1-3/8 1-1/4 1-1/8 2 6.00 Hago P 45º 280 100 22R221D 70

1088 3.2 2.4 6.0 28 3/4 1-5/16 1-7/16 1-7/16 1-5/16 2 6.50 Hago P 45º 280 100 22R221D 70
1188 4.0 2.0 6.4 28 3/4 1-3/4 1-13/16 1-7/8 1-3/4 2 7.00 Hago P 45º 280 100 22R221D 70
1288 3.0 2.4 6.0 28 13/16 2-1/16 2-5/16 2-5/8 2-1/8 2 7.50 Hago P 45º 300 100 22R221D 70
1388 3.8 2.0 6.3 28 3/4 1-1/2 2-1/2 2-1/2 1 7/8 2 8.50 Hago P 60º 290 100 22R322D 105
1488 4.6 2.6 7.7 28 15/16 2-3/16 2-1/8 2-1/4 2 2 9.00 Hago P 60º 300 100 22R322D 105
1588 5.1 2.8 8.7 28 1 2-1/8 3-3/8 3-1/4 2-1/4 2 10.00 Hago P 60º 280 100 22R322D 105

1688R 4.6 2.9 9.2 28 1 1/16 2-1/2 1-7/8 2-1/4 1-1/2 2 10.00 Hago P 60º 300 100 22R623D 135

1688 6.1 3.1 9.8 28 1 2-5/8 2-1/4 2-1/2 2-1/8 2 10.50 Hago P 60º 295 100 22R623D 135
1788 5.25 4.5 9.1 28 9/16 2-1/4 3-1/4 3-1/4 3 2 11.00 Hago P

1888 5.7 6.0 10.4 28 1 3 1-3/4 1-7/8 1-7/8 3 8.0 Delevan 60º 300 65 SG0550 108

orice

pressure

Inches

Gas

W.C.

Gas Control

Inlet

Inches

W.C.

Min. Max.

Initial Damper

Setting Inches

(Oil)

Low

High Fire High Fire

Fire

Light Oil Control Systems:8.

LF (FALFS): On-off operation, fixed air, reduced fuel low fire start, high fire run. Single-position air, two-position oil.

L (LHO): On-off operation, low fire start, high fire run. Two-position air, two-position oil.

H (LHL): Low-high-low-off firing conditions. Two-position air, two-position oil.

M (MOD): On-off operation, with proven low fire start and full modulating firing conditions. Proportional motor drives fuel metering valve and combus-

tion air damper according to the firing conditions. Fixed damper pre-purge on 488-1088R, open damper pre-purge on 1088-1888.

Gas/Light Oil Control Systems:9.

A/LF (OO/FALFS): Combines gas and light oil characteristics listed above.

L/L (LHO/LHO): Combines gas and light oil characteristics listed above.

H/H (LHL/LHL): Combines gas and light oil characteristics listed above.

M/M (MOD/MOD): Combines gas and light oil characteristics listed above.

120/60/1 control circuit is used for all burners.10.

Control circuit transformer is available as an option.11.

Motor starter contact will be furnished for all units.12.

Combustion Controls:13.

a) R8184G combustion control uses cadmium cell for flame detector to monitor oil burner flame, also furnishes intermittent ignition.

b) RM7897 flame safeguard control uses ultraviolet electronic flame detector to monitor gas or oil burner flame and provides pre-purge programming. “A”

models provide intermittent pilot; “C” models provide interrupted pilot and RUN/TEST switch.

c) RM7840M, E110/EPD390 flame safeguard control monitors the oil or gas burner flame, provides pre-purge and post-purge programming. Timed low fire

start is provided by means of timing built into control. Control is used with UL on-off (low fire start) systems. Ultraviolet sensitive electronic flame detector
is standard with infrared detector available.

d) RM7840L, E110/EPD170 flame safeguard control monitors the oil or gas burner flame, provides pre-purge and post-purge programming, provides switch-

ing necessary to allow firing rate motor to be driven to both low fire and high fire positions, prevents start-up if pre-ignition interlocks are open and has low
fire start proving circuit. In the event pre-ignition interlock circuit or running interlock circuit does not “prove”, system will lock out on safety. Ultraviolet
sensitive electronic flame detector is standard with infrared detector available.

Initial

Damper

Setting
Inches

(Gas)

Initial Damper
Setting Inches

(Gas/Light Oil)

High

(Gas)

Fire

High

Fire

(Oil)

Qty.

Oil Nozzle(s)

GPH @

100

PSIG

Brand

Fuel Unit

Low

Fire

Burner-Motor

Driven

3450 RPM

Type

Oil

Pressure

PSIG

Spray

High

Angle

Fire

60º 300 100 22R623D 135

Gear
GPH

Part Number 550-142-022/0509 3

Webster – Model WJB

Flame Safeguards Provided with Listed Control Systems by Code

GAS BURNERS

Boiler
model

number

UL FM CSD-1 IRI

OO LHO LHL MOD OO LHO LHL MOD OO LHO LHL MOD OO LHO LHL MOD

488R-488

RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897C RM7897C RM7897C RM7840L

588-988R

– – RM7897A RM7897A RM7897A – – RM7897A RM7897A RM7897A – – RM7897A RM7897A RM7897A – – RM7897C RM7897C RM7840L

988-1888

– – RM7897C RM7897C RM7840L – – RM7897C RM7897C RM7840L – – RM7897C RM7897C RM7840L – – RM7897C RM7897C RM7840L

LIGHT BURNERS

Boiler
model

number

UL FM CSD-1 IRI

FALFS LHO LHL MOD FALFS LHO LHL MOD FALFS LHO LHL MOD FALFS LHO LHL MOD

488R

R8184G R8184G R8184G R8184G R8184G R8184G R8184G R8184G R8184G R8184G R8184G R8184G RM7897C RM7897C RM7897C RM7840L

488-588

R8184G R8184G R8184G R8184G R8184G R8184G R8184G R8184G RM7897A RM7897A RM7897A RM7895A RM7897C RM7897C RM7897C RM7840L

688-988R

– – R8184G R8184G R8184G R8184G R8184G R8184G R8184G – – RM7897A RM7897A RM7895A – – RM7897C RM7897C RM7840L

988-1088R

– – R8184G R8184G R8184G R8184G R8184G R8184G RM7840L – – RM7897A RM7897A RM7895A – – RM7897C RM7897C RM7840L

1088-1888

– – RM7896C RM7896C RM7840L – – RM7896C RM7896C RM7840L – – RM7897C RM7896C RM7840L – – RM7896C RM7896C RM7840L

GAS/LIGHT OIL BURNERS

Boiler
model

number

UL FM CSD-1 IRI

OO/

FALFS

LHO LHL MOD

OO/

FALFS

LHO LHL MOD

OO/

FALFS

LHO LHL MOD

OO/

FALFS

LHO LHL MOD

488R-488

RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7897A RM7840L

588-988R

– – RM7897A RM7897A RM7897A – – RM7897A RM7897A RM7897A – – RM7897A RM7897A RM7897A – – RM7897A RM7897A RM7840L

988-1888

– – RM7897C RM7897C RM 7840L

– –

RM7896C RM7896C RM7840L – – RM7896C RM7896C RM7840L – – RM7896C RM7896C RM7840L

Notes

e) RM7800L, E110/EP170 flame safeguard control monitors the oil or gas burner flame with digital readout control system, provides pre-

purge and post-purge programming, provides switching necessary to allow firing rate motor to be driven to both low fire and high fire posi­tion, prevents start-up if pre-ignition interlocks are open and has low fire start proving circuit. In the event pre-ignition interlock circuit or
running interlock circuit does not “prove”, system will lock out on safety. Ultraviolet sensitive electronic flame detector is standard with
infrared detector available.

14. Airflow safety switch is standard for all gas and combination gas/light oil units.

15. Burners will be completely assembled and wired (except gas train) and factory test-fired.

16. Burners listed by Underwriters Laboratories, Inc., state of Connecticut, Fire Marshal state of Massachusetts, city of New York MEA, and others.

17. Special controls can be provided to meet other code requirements not listed. Consult your local Weil-McLain distributor/agent or sales office.

18. Electric gas pilot is standard equipment on all gas and combination gas/light oil units and on oil units 1688R-1888.
Direct spark ignition is standard on light oil units 488R-1588. Direct spark ignition is optional on combination gas/ light oil units 488R-1588.
Consult your local Weil-McLain distributor/agent or sales offices.

19. Available for Low NOx applications. Consult your local Weil-McLain distributor/agent or sales offices.

4

Part Number 550-142-022/0509