Burner data

Weil-McLain 88 Water and Steam Boilers — Series 2 — For Gas, Light Oil, & Gas/Light Oil-Fired Burners

Burner specifications and settings

Table 1

Burner Input

Positive

Standard

Burner Motor

Standard

Boiler

Burner Model Designation

Combustion Control

Control System

3450 Rpm

Pressure

Motor

Model

Gas/

No. 2 Oil

Gas

In Firebox

Gas

Light

Gas

Light

Gas/Light

Gas

Light

Gas/Light

Gas

Light

Voltage

Number

Gas/Light Oil

Light

Gph

Mbh

In. W.C.

Oil

488R

6.9

996

0.80

WCR1-G-12

WCR1-OS

WCR1-GO-12

RM7897A

R7184P

RM7897C

FALFS

OO/FALFS

Z\x

120/60/1

488

7.0

1,010

0.80

WCR1-G-12

WCR1-OS

WCR1-GO-12

RM7897A

R7184P

RM7897C

FALFS

OO/FALFS

Z\x

120/60/1

588

9.4

1,356

0.58

WCR1-G-12

WCR1-OS

WCR1-GO-12

RM7897A

R7184P

RM7897C

FALFS

OO/FALFS

Z\x

120/60/1

688

11.8

1,701

0.46

WCR2-G-15

WCR2-OAS

WCR2-GO-15

RM7897A

R7184P

RM7897C

LHO

LHO/LHO

Z\x

C\v

120/60/1

788

14.2

2,046

0.47

WCR2-G-15

WCR2-OAS

WCR2-GO-15

RM7897A

R7184P

RM7897C

LHO

LHO/LHO

Z\x

C\v

120/60/1

888

16.6

2,382

0.49

WCR2-G-20A

WCR2-OBS

WCR2-GO-20A

RM7897A

R7184P

RM7897C

LHO

LHO/LHO

C\v

240/60/1

988R

17.2

2,482

0.50

WCR2-G-20B

WCR2-OBS

WCR2-GO-20B

RM7897A

R7184P

RM7897C

LHO

LHO/LHO

240/60/1

988

18.8

2,737

0.50

WCR2-G-20B

WCR2-OBS

WCR2-GO-20B

RM7897C

R7184P

RM7897C

LHO

LHO/LHO

1Z\x

240/60/1

1088R

20.0

2,887

0.52

WCR2-G-20B

WCR2-OBS

WCR2-GO-20B

RM7897C

RM7897A

RM7897C

LHO

LHO/LHO

1Z\x

240/60/1

1088

21.5

3,082

0.73

WCR3-G-20

WCR3-O

WCR3-GO-20

RM7897C

RM7897A

RM7897C

LHO

LHO/LHO

1Z\x

240/60/1

1188

23.5

3,428

0.53

WCR3-G-20

WCR3-O

WCR3-GO-20

RM7897C

RM7897A

RM7897C

LHO

LHO/LHO

1Z\x

3-Phase*

1288

26.0

3,773

0.48

WCR3-G-20

WCR3-O

WCR3-GO-20

RM7897C

RM7897A

RM7897C

LHO

LHO/LHO

1Z\x

3-Phase*

1388

28.5

4,119

0.56

WCR3-G-25

WCR3-O

WCR3-GO-25

RM7897C

RM7840L

LHO

LHO/LHO

1Z\x

3-Phase*

1488

31.0

4,464

0.58

WCR3-G-25B

WCR3-OB

WCR3-GO-25B

RM7840L

LHO

LHO/LHO

3-Phase*

1588

33.0

4,809

0.59

WCR3-G-25B

WCR3-OB

WCR3-GO-25B

RM7840L

LHO

LHO/LHO

3-Phase*

1688R

34.5

4,979

0.80

WCR3-G-25B

WCR3-OB

WCR3-GO-25B

RM7840L

LHO

LHO/LHO

3-Phase*

1688

35.5

5,155

0.80

WCR3-G-25B

WCR3-OB

WCR3-GO-25B

RM7840L

LHO

LHO/LHO

3-Phase*

1788

38.0

5,494

0.62

WCR4-G-25

WCR4-OA

WCR4-GO-25

RM7840L

LHO

LHO/LHO

3-Phase*

1888

40.5

5,845

0.69

WCR4-G-25

WCR4-OA

WCR4-GO-25

RM7840L

LHO

LHO/LHO

3-Phase*

* 208/60/3, 240/60/3, 480/60/3 burner motor voltage must be specified.

Notes for Table 1 and Table 2

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

2.Light oil ratings based on No. 2 fuel oil with heating value of 140,000 Btu per gallon.

3.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 Weil-McLain distributor/agent or sales office.

4.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.

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

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

7.120/60/1 control circuit is used for all burners.

8.Control circuit transformer is available as an option.

9.Motor relay or contactor will be furnished for all units, except 488R and 488.

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

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

12.Burners listed by Underwriters Laboratories, Inc., state of Connecti- cut, Fire Marshal state of Massachusetts, city of New York MEA, and others.

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

14.Electric gas pilot will be furnished as standard equipment on all gas and combination gas/light oil units.

15.Direct spark ignition is standard for light oil units. Direct spark ignition is available as an option for combination gas/light oil units. Consult your local Weil-McLain distributor/agent or sales office.

16.Gas Control Systems:

OOOn-off operation, low fire start, high fire run. Single-position air, adjustable opening gas valve.

LHO	On-off operation, low fire start, high fire run. 488-1388:
	two-position air controlled by damper arm on motorized gas
	valve, fixed damper pre-purge. 1488-1888: two-position air
	controlled by separate motor, open damper pre-purge.
LHL	Low-high-low-off firing conditions. 488-1388: two-position
	air controlled by damper arm on motorized gas valve, fixed
	damper pre-purge. 1488-1888: two-position air controlled by
	separate motor, open damper pre-purge.
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
	488-1388, open damper pre-purge on 1488-1888.

2	Part No. 550-142-029/0508

Weil-McLain WCR manual Burner data

Models: WCR

Burner specifications and settings

Burner data

LHO

LHL

MOD