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Benchmark 5000-6000 Boiler Installation & Startup Manual
SECTION 3: START SEQUENCE
3.4.2 Benchmark 6000 Air/Fuel Valve Position and Energy Input
BMK 6000 Air/Fuel Valve Position and Energy Input
Air Fuel Valve
Position
(% Full Open)
0%
10%
18% (Stop Level)
20%
30%
40%
50%
60%
70%
80%
90%
BMK 6000 Gas Pressure De-Rating Chart
Gas Pressure @ SSOV
in inches W.C. (kPa)
Inlet
56"
(13.9 kPa)
14"
(3.49 kPa)
13"
(3.23 kPa)
OMM-0123_E • GF-207 • 12/17/2019
Boiler Energy Input
BTU/Hr
0
0
385,000
(113 kW)
400,000
(117 kW)
540,000
(158 kW)
770,000
(226 kW)
1,160,000 (340 kW)
1,650,000 (484 kW)
2,386,000 (699 kW)
3,515,000 (1030 kW)
4,650,000 (1362 kW)
Energy Input in
Outlet
8"
(1.99 kPa)
6,000,000 (1758 kW)
8"
(1.99 kPa)
6,000,000 (1758 kW)
8"
(1.99 kPa)
5,860,000 (1717 kW)
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% of Full
Capacity
0%
0%
6%
7%
9%
13%
19%
28%
40%
59%
78%
Oxygen
BTU/hr
(%O
2
5.40
5.40
5.45
DeRating
)
(% Full Fire)
0%
0%
2%
Page 43 of 95
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