9
TABLE IBOILER RATINGS/DATA
)1( )2( )3( )4(
relioB
ledoM
-esroH
rewoP
ssorG
tuptuO
)HBM(
gnitaRR=B=IteN renruB
tupnI
gnitaeH
ecafruS
).tF.qS(
teN
xoberiF
emuloV
).tF.uC(
erusserP
ni
xoberiF
).C.W"(
retaW
tnetnoC
).laG(
thgieWrelioB
retaW/w
).sbL( tneV
.aiD
).nI(
.tF.qS
maetS
HBM
maetS
HBM
retaW
liO
)HPG(
saG
)HBM( maetS retaW maetS retaW m
aetS retaW
30-42 2.01 243 1
701 752 792 50.3 834 2.43 0.73 2.3 33. 5.44 0.66 9341 8
161 7
40-42 1.41 174 1
741 353 014 01.4 495 6.84 3.45 8.4 83. 0.35 0.57 1181 5991 7
50-42 9.81 436 3891 674 155 05.5 297 0.36 5.17 4.6 1
3. 5.16 0.48 4812 2732 8
60-42 8.32 797 2942 895 396 09.6 099 5.77 8.88 9.7 8
3. 0.07 0.39 7552 9472 8
70-42 0.82 739 9292 307 518 01.8 4711 9.19 0.601 5.9 6
3. 5.87 0.201 0392 6213 8
80-42 5.23 7801 6933 518 549 04.9 8531 3
.601 3.321 0.11 53. 0.78 0.111 3033 3053 01
90-42 3.93 6131 6414 599 8411 04.11 1461 7.021 5
.041 6.21 53. 5.59 0.021 6763 0883 01
01-42 0.54 5051 8874 9411 9031 00.31 7681 1
.531 8.751 2.41 04. 0.401 0.921 8404 7524 01
11-42 5.05 0961 9245 3031 0741 06.41 3902 5
.941 0.571 7.51 54. 5.211 0.831 1244 4364 21
21-42 3.55 2581 3895 6341 0161 00.61 0232 0
.461 3.291 3.71 94. 0.121 0.741 4974 1105 21
(1) Trim Suffix: S = Steam Boiler, W = Water Boiler
Fuel Suffix: N = Natural Gas, P = LP Gas, O = Oil
(2) I=B=R net ratings shown are based on piping and pick-up allowances which vary from 1.333 to 1.289 for steam and
1.15 for water. Consult manufacturer for installations having unusual piping and pick-up requirements, such as
intermittent system operation, extensive piping systems, etc. The I=B=R burner capacity in GPH is based on oil having a
heat value of 140,000 BTU per gallon.
(3) 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.
(4) Boiler ratings are based on 12.5% CO2 (oil) and 9.7% CO2 (natural gas), + .10” (inches) water column pressure at boiler
flue outlet. 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.
Maximum Allowable Working Pressure: Steam Boiler - 15 PSI, Water Boiler - 50 PSI
Standard Safety (Relief) Valve Set Pressure: Steam Boiler - 15 PSI, Water Boiler - 30 PSI