AERCO BMK 2.0 LN Natural Gas (SN G-11-1861 and above) - Manual (Page 47)

GF-123
Benchmark 2.0LN Low NOx Boiler
Chapter 3
OMM-0046_0E I nstallation, Operation and Maintenance Manual Operation
PR1 08/20/12 AERCO International Inc.● 100 Oritani Dr. ● Blauvelt, NY 10913. ● Ph: 800-526-0288 Page 47 of 170
Note that the energy input of the boiler is not linearly related to the Air/Fuel Valve position. Refer
to Table 3-7 for the relationship between the energy input and Air/Fuel Valve position for a unit
running on natural gas.
Table 3-7. Relationship Between Air/Fuel Valve Position and Energy Input For
Unit Running On Natural Gas
Air/Fuel Valve Position
(% Open)
Energy Input
(BTU/Hr)
Boiler Energy Input
(% of Full Capacity)
0 0 0
10% 0 0
18%
(Stop Level)
100,000
5.0%
20% 134,000 7%
30% 349,000 17%
40% 631,000 32%
50% 893,000 45%
60% 1,150,000 58%
70% 1,410,000 71%
80% 1,610,000 81%
90% 1,830000 92%
100% 2,000,000 100%