Watts Aerco BMK 750, Руководство по эксплуатации и обслуживанию

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Benchmark with Edge [I]: Operation-Maintenance Manual
SECTION 4
– INITIAL START-UP
OMM-0145_A99
• GF-218 • 9/18/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page
65 of 157
PROPANE Combustion Calibration Instructions
BMK2500
70% 5.4% ± 0.2% <100 ppm <150 ppm
45% 5.6% ± 0.2% <100 ppm <150 ppm
30% 6.0% ± 0.2% <100 ppm <100 ppm
22% 5.8% ± 0.2% <100 ppm <100 ppm
18% 6.0% ± 0.2% <100 ppm <100 ppm
BMK3000
85% 5.2% ± 0.2% <100 ppm <150 ppm
65% 5.4% ± 0.2% <100 ppm <150 ppm
45% 6.0% ± 0.2% <100 ppm <150 ppm
30% 6.4% ± 0.2% <100 ppm <100 ppm
18% 6.4% ± 0.2% <100 ppm <100 ppm
TABLE 4-6b: PROPANE Final Valve Positions: BMK5000 & 6000
Valve Position
Oxygen (O
2
) %
Nitrogen Oxide
(NO
x
)
Carbon
Monoxide (CO)
Single-Fuel Dual-Fuel
BMK5000
70% 70%
5.5% ± 0.5% <100 ppm <150 ppm
50% 50% 5.5% ± 0.5% <100 ppm <150 ppm
40% 40% 5.5% ± 0.5% <100 ppm <150 ppm
30% 30% 5.5% ± 0.5% <100 ppm <150 ppm
18% 18% 6.0% ± 1.0% <100 ppm <150 ppm
BMK6000
70% 85%
5.5% ± 0.5% <100 ppm <150 ppm
50% 65% 5.5% ± 0.5% <100 ppm <150 ppm
40% 45% 5.5% ± 0.5% <100 ppm <150 ppm
30% 30% 5.5% ± 0.5% <100 ppm <150 ppm
18% 18% 6.0% ± 1.0% <100 ppm <150 ppm
NOTE :
If NOx readings exceed the target values in Table 4-6a and 4-6b, increase the O
2
level up to
1% higher than the listed calibration range shown in the table. Record the increased O
2
value
on the Combustion Calibration sheet.
26. If the oxygen level at the lowest valve position is too high, and the Blower voltage is at the
minimum value, you can adjust the TAC screw, which is recessed in the top of the Air/Fuel
Valve (see Figure 4-3). Rotate the screw 1/2 turn
clockwise (CW) to add fuel and reduce
the O
2
to the specified level. Recalibration MUST be performed again from 60% or 50%
down to the lowest valve position after making a change to the TAC screw.