Advertisement
Benchmark 750-3000 Boiler Installation & Startup Manual
SECTION 4 – INITIAL START-UP
PROPANE Combustion Calibration Instructions
Use the Down ▼arrow key to lower the valve position to one of the following:
29.
•
BMK 750P & 1000P: 80%
•
BMK 1500/2000/2500 DF & P: 70%
•
BMK 3000 DF & P: 85%
NOTE:
Remaining combustion calibration steps are performed using the Combustion Cal menu in
the C-More Controller. The combustion calibration control functions will be used to adjust
the oxygen level (%) at valve position percentages described in the steps below. These
instructions assume that the inlet air temperature is between 50°F and 100°F (10°C –
37.8°C). If NO
readings exceed the target values in Table 4-5, above, increase the O
x
up to 1% higher than the listed calibration range. Record the increased O
Combustion Calibration sheet.
30.
Repeat steps 21 through 25 for valve positions shown in Table 4-6. The oxygen (O
nitrogen oxide (NO
Table 4-6.
TABLE 4-6: PROPANE Final Valve Positions: BMK 750 – 3000
Valve Position
Oxygen (O
BMK 750/1000
80%
5.5% ± 0.2%
60%
5.5% ± 0.2%
45%
5.5% ± 0.2%
30%
6.3% ± 0.2%
18%
5.5% ± 0.2%
BMK 1500
70%
5.2% ± 0.2%
50%
5.3% ± 0.2%
40%
6.2% ± 0.2%
30%
7.0% ± 0.2%
18%
8.5% ± 0.2%
BMK 2000
70%
6.5% ± 0.2%
50%
6.5% ± 0.2%
40%
6.5% ± 0.2%
30%
6.5% ± 0.2%
18%
5.5% ± 0.2%
BMK 2500
70%
5.4% ± 0.2%
45%
5.6% ± 0.2%
30%
6.0% ± 0.2%
22%
5.8% ± 0.2%
18%
6.0% ± 0.2%
OMM-0121_D • GF-205 • 5/9/2019
) and carbon monoxide (CO) should stay within the ranges shown
x
) %
Nitrogen oxide (NO
2
<100 ppm
<100 ppm
<100 ppm
<100 ppm
<100 ppm
<100 ppm
<100 ppm
<100 ppm
<100 ppm
<100 ppm
<100 ppm
<100 ppm
<100 ppm
<100 ppm
<100 ppm
<100 ppm
<100 ppm
<100 ppm
<100 ppm
<100 ppm
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
value on the
2
)
Carbon Monoxide (CO)
x
<150 ppm
<150 ppm
<150 ppm
<100 ppm
<100 ppm
<150 ppm
<150 ppm
<150 ppm
<100 ppm
<100 ppm
<150 ppm
<150 ppm
<150 ppm
<100 ppm
<100 ppm
<150 ppm
<150 ppm
<150 ppm
<100 ppm
<100 ppm
level
2
),
2
Page 69 of 122
Advertisement
