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(1)
Gross
Horse-
Boiler
Fuel
Output
Model
Type
Power
(MBH)
10.0
Gas
336
V903A
10.0
Oil
336
15.2
Gas
509
V904A
15.7
Oil
527
Gas
20.3
679
V905A
21.0
Oil
703
848
Gas
25.3
V906A
879
Oil
26.2
30.1
1006
Gas
V907A
31.1
1042
Oil
34.8
1164
Gas
V908A
1206
Oil
36.0
1406
Gas
42.0
V909A
1456
Oil
43.5
47.8
1600
Gas
V910A
1657
Oil
49.5
1794
Gas
53.6
V911A
1858
Oil
55.5
1988
Gas
59.4
V912A
61.5
Oil
2059
Notes:
(1) Type of Build Prefix: K = Knockdown, A = Knockdown w/Assembled Sections, P = Packaged, F = Packaged and Firetested
Trim Suffix:
W = Water Boiler
Fuel Suffix:
N = Natural Gas, P = LP Gas, O = Oil, C = Natural Gas/Oil, D = LP Gas/Oil, M - Less Burner
Burner Suffix: B = Beckett, J = Power Flame JR, P = Power Flame C, W = Webster, L = Less Burner
(2) AHRI net ratings shown are based on a piping and pick-up allowance of 1.15 for water, from the AHRI CBLR Operations Manual. Consult
manufacturer for installations having unusual piping and pick-up requirements, such as intermittent system operation, extensive piping
systems, etc.
(3) The burner capacity in GPH is based on No. 2 fuel oil having a heat value of 140,000 BTU per gallon.
(4) Firebox volume does not include added volume of 8" extended burner mounting plate (BMP). If 8" BMP is specified (refer to Figure 1), add
0.7 cu. ft. to volume listed above.
(5) Boiler ratings are based on 12.0 - 12.5% CO
Ratings shown above apply at altitudes up to 1000 feet on oil and 2000 feet on gas.
For altitudes above those indicated, the ratings should be reduced at the rate of 4% for each 1000 feet above sea level.
Safety (Relief) Valve Set Pressure: Water Boiler - 50 PSI
12
Table I: Boiler Ratings / Data
(2)
(3)
Net AHRI
Burner Input
Rating
MBH Water
MBH
GPH
-
292
400
386
2.8
292
-
443
606
458
4.3
-
590
808
611
5.8
-
737
1010
764
7.2
875
-
1198
8.6
906
1012
-
1386
1049
9.9
1223
-
1674
1266
12.0
1391
-
1905
1441
13.6
1560
-
2136
1616
15.3
1729
-
2367
1791
16.9
(oil) and 9.8% CO
(natural gas), + .10" (inches) water column pressure at boiler flue outlet.
2
2
Optional Water Boiler - 30 PSI, 40 PSI, 45 PSI, 80 PSI (special order)
(4)
AHRI Certified
Firebox
Efficiencies (%)
Volume
(Cu. Ft.)
Combustion Thermal
85.4
84.0
3.2
89.1
87.0
85.3
84.0
4.8
89.0
87.0
85.2
84.0
6.4
88.9
87.0
85.2
84.0
7.9
88.8
87.0
85.1
84.0
9.5
88.7
87.0
85.1
84.0
11.0
88.6
87.0
85.0
84.0
12.6
88.5
87.0
84.9
84.0
14.2
88.4
87.0
84.8
84.0
15.7
88.3
87.0
84.8
84.0
17.3
88.2
87.0
3050579
(5)
Pressure
Water
Boiler
in Firebox
Weight w/
Content
(In. Wtr.
(Gal.)
Water (Lbs.)
Clmn.)
0.95
1618
66.0
0.95
0.97
1995
75.0
1.01
0.98
84.0
2372
1.07
1.00
93.0
2749
1.12
1.01
102.0
3126
1.18
1.03
111.0
3503
1.23
1.05
120.0
3880
1.31
1.06
129.0
4257
1.37
1.08
138.0
4634
1.44
1.10
147.0
5011
1.50
Vent Dia.
(In.)
7
7
8
8
8
10
10
10
12
12
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