Aerco BENCHMARK 6000 - Page 56

Benchmark 6000 Boiler Installation, Operation & Maintenance Manual
CHAPTER 3 – OPERATION
Page 56 of 210 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0086_0D
03/20/14 Ph.: 800-526-0288 GF-133
Table 3-9: Gas Pressure De-Rating Chart
Gas Pressure @
SSOV (inches W.C.)
Energy Input
(BTU/hr)
Oxygen
(%O2)
DeRating
(% Full Fire)
Inlet
Outlet
56
8
6,000,000
5.40
0%
14
8
6,000,000
5.40
0%
13
8
5,860,000
5.45
2%
12
7.95
5,860,000
5.41
2%
11.5
7.5
5,740,000
5.77
4%
11
7.1
5,610,000
6.17
6%
Figure 3-8: Relationship Between Air/Fuel Valve Position and Energy Input