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Weil-McLain 88 Water and Steam Boilers — Series 2 —
Burner specifications and settings
Table 1
Burner data
Burner Input
Boiler
(Forced Draft)
Model
No. 2 Oil
Number
Gph
488R
6.90
488
7.00
588
9.40
688
11.80
788
14.20
888
16.60
988R
17.20
988
18.80
1088R
20.00
1088
21.50
1188
23.50
1288
26.00
1388
28.50
1488
31.00
Notes for Table 1 and Table 2
1.
Burner capacities listed for elevations up to 2,000 feet. For
higher elevations, 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.
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.
Combustion Controls:
a.
60200 combustion safety control uses a cadmium sulfide
cell flame detector to monitor oil flame; provides inter-
rupted duty, recycle type operation, latch-up feature,
30-second oil valve delay on, 30-second post purge, alarm
contacts and safety monitor circuit.
2
Low Fire
Positive
Firing Rate
Pressure In
No. 2 Oil
Firebox
Gph
Inches W.C.
3.90
0.55
4.00
0.55
5.42
0.61
6.60
0.55
7.00
0.60
8.00
0.85
8.90
0.65
8.92
0.70
9.60
0.70
10.10
0.70
12.00
0.75
12.54
0.75
13.44
0.80
15.10
0.75
For Light Oil-Fired Burners
Standard
Standard
Burner
Combustion
Model
Control
Designation
702CRD-W
60200
702CRD-W
60200
702CRD-W
60200
801CRD-W
60200
801CRD-W
60200
801CRD-W
60200
1050FFD-W
60200
1050FFD-W
60200
1050FFD-W
60200
1050FFD-W
RM7840L-1018
1150FFD-W
RM7840L-1018
1150FFD-W
RM7840L-1018
1150FFD-W
RM7840L-1018
1150FFD-W
RM7840L-1018
b.
RM7840L-1018 combustion safety control (for over 20
GPH applications) uses an ultraviolet flame detector to
monitor oil flame and provides purge timings.
5.
All motors furnished with integral overload protection with
manual reset.
6.
Mechanical pressure atomizing oil control system with on/
off operation, low fire start, high fire run and two-position
air control is standard. Low-High-Low fire operation can
be obtained by addition of SPST temperature or pressure
controller.
7.
120/60/1 control circuit is used for all burners.
Approximate
Air Settings
Starting
Head
Setting
Low Fire
7/32
5/16
7/32
5/16
13/16
1/2
3/16
1/4
5/8
1/2
1
3/8
3/8
3/8
1/2
1/4
1/2
3/4
1/2
3/4
1/4
11/16
7/16
7/8
11/16
7/8
1
1
Part No. 550-142-030/0508
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