Watts AERCO Benchmark BMK5000 - Benchmark 2000 Air;Fuel Valve Position and Energy Input

Benchmark with Edge [I]: Operation-Maintenance Manual
SECTION 3 - START SEQUENCE
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3.4.3 Benchmark 2000 Air/Fuel Valve Position and Energy Input
TABLE 3-4a: BMK2000 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: BMK2000 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%