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Weil-McLain 88 Water and Steam Boilers — Series 2 —
Burner specifications and settings
Table 1
Burner data
Burner Input
Positive
Boiler
Pressure
Model
In Firebox
No. 2 Oil
Gas
Number
In. W.C.
Gph
Mbh
6.9
996
488R
0.80
7.0
1,010
488
0.80
9.4
1,356
588
0.58
11.8
1,701
688
0.46
14.2
2,046
788
0.47
16.6
2,382
888
0.49
17.2
2,482
988R
0.50
18.8
2,737
988
0.50
1088R
20.0
2,887
0.52
1088
21.5
3,082
0.73
1188
23.5
3,428
0.53
1288
26.0
3,773
0.48
1388
28.5
4,119
0.56
1488
31.0
4,464
0.58
1588
33.0
4,809
0.59
1688R
34.5
4,979
0.80
1688
35.5
5,155
0.80
1788
38.0
5,494
0.62
1888
40.5
5,845
0.69
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.
2
Standard
Burner Model Designation
Gas
Light
Gas/Light Oil
Oil
WCR1-G-12
WCR1-OS
WCR1-GO-12
WCR1-G-12
WCR1-OS
WCR1-GO-12
WCR1-G-12
WCR1-OS
WCR1-GO-12
WCR2-G-15
WCR2-OAS WCR2-GO-15
WCR2-G-15
WCR2-OAS WCR2-GO-15
WCR2-G-20A WCR2-OBS WCR2-GO-20A
WCR2-G-20B WCR2-OBS WCR2-GO-20B
WCR2-G-20B WCR2-OBS WCR2-GO-20B
WCR2-G-20B WCR2-OBS WCR2-GO-20B
WCR3-G-20
WCR3-O
WCR3-GO-20
WCR3-G-20
WCR3-O
WCR3-GO-20
WCR3-G-20
WCR3-O
WCR3-GO-20
WCR3-G-25
WCR3-O
WCR3-GO-25
WCR3-G-25B WCR3-OB
WCR3-GO-25B
WCR3-G-25B WCR3-OB
WCR3-GO-25B
WCR3-G-25B WCR3-OB
WCR3-GO-25B
WCR3-G-25B WCR3-OB
WCR3-GO-25B
WCR4-G-25
WCR4-OA
WCR4-GO-25
WCR4-G-25
WCR4-OA
WCR4-GO-25
* 208/60/3, 240/60/3, 480/60/3 burner motor voltage must be specified.
For Gas, Light Oil, & Gas/Light Oil-Fired Burners
Standard
Combustion Control
Gas
Light
Gas/Light
Gas
Oil
Oil
RM7897A
R7184P
RM7897C
OO
RM7897A
R7184P
RM7897C
OO
RM7897A
R7184P
RM7897C
OO
RM7897A
R7184P
RM7897C
LHO
RM7897A
R7184P
RM7897C
LHO
RM7897A
R7184P
RM7897C
LHO
RM7897A
R7184P
RM7897C
LHO
RM7897C
R7184P
RM7897C
LHO
RM7897C RM7897A RM7897C
LHO
RM7897C RM7897A RM7897C
LHO
RM7897C RM7897A RM7897C
LHO
RM7897C RM7897A RM7897C
LHO
RM7897C RM7840L RM7840L
LHO
RM7840L RM7840L RM7840L
LHO
RM7840L RM7840L RM7840L
LHO
RM7840L RM7840L RM7840L
LHO
RM7840L RM7840L RM7840L
LHO
RM7840L RM7840L RM7840L
LHO
RM7840L RM7840L RM7840L
LHO
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:
On-off operation, low fire start, high fire run. Single-position
OO
air, adjustable opening gas valve.
On-off operation, low fire start, high fire run. 488-1388:
LHO
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.
Low-high-low-off firing conditions. 488-1388: two-position
LHL
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.
On-off operation, with proven low fire start and full modulating
MOD
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.
Standard
Burner Motor
Control System
3450 Rpm
Light
Gas/Light
Gas
Light
Oil
Oil
Oil
FALFS
OO/FALFS
Z\x
Z\x
FALFS
OO/FALFS
Z\x
Z\x
FALFS
OO/FALFS
Z\x
Z\x
LHO
LHO/LHO
Z\x
C\v
LHO
LHO/LHO
Z\x
C\v
LHO
LHO/LHO
1
C\v
LHO
LHO/LHO
1
1
LHO
LHO/LHO
1
1Z\x
LHO
LHO/LHO
1
1Z\x
LHO
LHO/LHO
1Z\x
2
LHO
LHO/LHO
1Z\x
2
LHO
LHO/LHO
1Z\x
2
LHO
LHO/LHO
1Z\x
2
LHO
LHO/LHO
3
3
LHO
LHO/LHO
3
3
LHO
LHO/LHO
3
3
LHO
LHO/LHO
3
3
LHO
LHO/LHO
3
5
LHO
LHO/LHO
3
5
Part No. 550-142-029/0508
Standard
Motor
Gas/
Voltage
Light
Oil
120/60/1
Z\x
120/60/1
Z\x
120/60/1
Z\x
120/60/1
C\v
120/60/1
C\v
1
240/60/1
1
240/60/1
1Z\x
240/60/1
1Z\x
240/60/1
2
240/60/1
2
3-Phase*
2
3-Phase*
2
3-Phase*
3
3-Phase*
3
3-Phase*
3
3-Phase*
3
3-Phase*
5
3-Phase*
5
3-Phase*
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