Weil-McLain WJB1, WJB2 manual Burner Specification and Data Sheet, Psig, Gph @

Page 3

Burner Specification and Data Sheet

7.Gas Control Systems:

 

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

 

 

 

Initial

 

 

 

 

 

 

 

 

 

 

Fuel Unit

 

 

 

 

required at

Initial Damper

Damper

Initial Damper

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Oil

 

Burner-Motor

 

Pressure

 

Gas

Gas Control

Setting Inches

Setting

Setting Inches

 

Oil Nozzle(s)

 

 

 

 

 

 

 

 

 

Driven

 

Boiler

drop thru

 

orifice

Inlet

 

 

(Oil)

Inches

(Gas/Light Oil)

 

 

 

 

 

Pressure

 

 

 

 

 

 

 

 

 

3450 RPM

Model

gas train

pressure

Inches

 

 

 

(Gas)

 

 

 

 

 

 

 

PSIG

 

 

 

 

 

 

 

 

 

 

 

 

Number

Inches

 

Inches

W.C.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W.C.

 

W.C.

 

 

 

Low

 

 

 

High

High

 

GPH @

 

Spray

 

High

 

Low

 

Gear

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Min.

Max.

 

High Fire

High Fire

Fire

Fire

Qty.

100

Brand

 

 

Type

 

 

 

 

 

 

 

Fire

 

 

 

(Gas)

(Oil)

 

PSIG

 

Angle

 

Fire

 

Fire

 

GPH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

60º

 

300

 

100

22R623D

135

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

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

8.Light Oil Control Systems:

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.

9.Gas/Light Oil Control Systems:

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.

10.120/60/1 control circuit is used for all burners.

11.Control circuit transformer is available as an option.

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

13.Combustion Controls:

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.

Part Number 550-142-022/0509

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Contents Burner Specification Webster Data Sheet Webster Model WJB MBHGPH Burner Specification and Data Sheet PsigGPH @ GAS Burners

WJB2, WJB1 specifications

Weil-McLain, a leading manufacturer in the heating industry, offers a range of innovative products designed for efficiency and performance, with the WJB1 and WJB2 modulating condensing boilers standing out as prominent options for residential and commercial heating applications.

The WJB1 and WJB2 models are engineered for high efficiency, featuring advanced condensing technology that allows them to capture and utilize latent heat from exhaust gases. This maximizes thermal efficiency, making them an ideal choice for those looking to reduce energy consumption and lower utility bills. Both models boast an impressive AFUE (Annual Fuel Utilization Efficiency) rating, reaching up to 95%. This means that a significant portion of the energy consumed is converted into usable heat, minimizing waste.

These boilers are built with durable materials designed to withstand the rigors of daily use. The heat exchanger, which is one of the critical components, is crafted from stainless steel, providing excellent corrosion resistance and contributing to the longevity of the unit. This construction not only enhances the boiler's lifespan but also supports consistent performance over time.

One notable feature of the WJB1 and WJB2 is their integrated control system. Equipped with user-friendly interfaces, these models allow for easy adjustment and monitoring, ensuring that users can optimize their heating requirements based on real-time demands. The modulating capabilities enable the boiler to adjust its output according to the specific heating needs, which results in enhanced comfort and reduced energy waste.

Additionally, the WJB1 and WJB2 models are designed with environmental considerations in mind. Their low NOx emissions help promote cleaner air quality, making them compliant with stringent environmental regulations. This commitment to sustainability is a key aspect of Weil-McLain's product design philosophy.

Another significant attribute is their versatility in installation. The compact design allows for various placement options, whether it’s in a basement, utility room, or garage. Moreover, these boilers can be easily integrated into existing heating systems, which is advantageous for retrofitting older buildings.

In summary, the Weil-McLain WJB1 and WJB2 modulating condensing boilers are characterized by their high efficiency, durable construction, advanced control technology, eco-friendliness, and installation flexibility. These features make them an excellent investment for homeowners and businesses aiming for reliable and efficient heating solutions.
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