Watts Benchmark Aerco OMM-0122 - 3.4.3 BMK 2000 Air;Fuel Valve Position and Energy Input

Benchmark 750-3000 Boiler Installation & Startup Manual
SECTION 3 - START SEQUENCE
OMM-0121_D • GF-205 • 5/9/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 54 of 122
3.4.3 BMK 2000 Air/Fuel Valve Position and Energy Input
TABLE 3-4a: BMK 2000 Air/Fuel Valve Position – NATURAL GAS
AIR/FUEL VALVE POSITION
(% OPEN)
ENERGY INPUT
(BTU/HR)
BOILER ENERGY INPUT
(% OF FULL CAPACITY)
18% (Stop Level)
100,000 (29.3 kW)
5.7%
20%
143,000 (41.9 kW)
11%
30%
388,000 (113.7 kW)
23%
40%
759,000 (222.4 kW)
37%
50%
1,069,000 (313.2 kW)
51%
60%
1,283,000 (375.9 kW)
61%
70%
1,476,000 (432.5 kW)
74%
80%
1,675,000 (490.1 kW)
83%
90%
1,833,000 (537.1 kW)
93%
100%
2,000,000 (586.0 kW)
100%
TABLE 3-4b: BMK 2000 Air/Fuel Valve Position – PROPANE GAS
AIR/FUEL VALVE POSITION
(% OPEN)
ENERGY INPUT
(BTU/HR)
BOILER ENERGY INPUT
(% OF FULL CAPACITY)
18% (Stop Level)
100,000
5.0%
20%
126,600
6.3%
30%
363,000
18.2%
40%
677,000
33.9%
50%
898,000
44.9%
60%
1,070,000
53.5%
70%
1,242,000
62.1%
80%
1,523,000
76.2%
90%
1,845,000
92.3%
100%
2,000,000
100%