AERCO BMK 1.5 LN October 2012 - Manual (Page 54)

CHAPTER 4
INITIAL START-UP
Page 54 of 166 AERCO International Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526-0288 PR1:10/18/12
Benchmark 1.5LN Low NOx Boiler
Installation, Operation and Maintenance Manual
GF-120
OMM-0041 0E
Press the down ▼ arrow key until CAL Voltage 60% is displayed.
29.
Press the CHANGE key. CAL Voltage 60% will begin to flash. 30.
The oxygen level at the 60% valve position should be as shown below. Also, ensure that 31.
the carbon monoxide (CO) and nitrogen oxide (NOx) readings do not exceed the values
shown.
Table 4-3: Combustion Oxygen Levels for a
60% Air/Fuel Valve Position
Oxygen
%
± 0.2
Carbon
Monoxide NOx
6.3 % <50 ppm <30 ppm
If the oxygen level is not within the specified range, adjust the level using the ▲ and ▼
32.
arrow keys. This will adjust the output voltage to the blower motor as indicated on the
display. Pressing the ▲ arrow key increases the oxygen level and pressing the ▼ arrow
key decreases the oxygen level.
Once the oxygen level is within the specified range at 60%, press the ENTER key to 33.
store the selected blower output voltage for the 60% valve position.
Press the ▲ arrow key until SET Valve Position appears on the C-MORE display.
34.
Press the CHANGE key. SET Valve Position will begin to flash. 35.
Press the ▼ arrow key until the SET Valve Position reads 45%, then press the ENTER
36.
key.
Press the ▼ arrow key until CAL Voltage 45% is displayed.
37.
Press the CHANGE key. CAL Voltage 45% will begin to flash. 38.
The oxygen level at the 45% valve position should be as shown below. Also, ensure that 39.
the carbon monoxide (CO) and nitrogen oxide (NOx) readings do not exceed the values
shown.
Table 4-4: Combustion Oxygen Levels for a
45% Air/Fuel Valve Position
Oxygen
%
± 0.2
Carbon
Monoxide NOx
7.0 % <50 ppm <30 ppm
If the oxygen level is not wit
hin the specified range, adjust the level using the ▲ and ▼
40.
arrow keys. This will adjust the output voltage to the blower motor as indicated on the
display. Pressing the ▲ arrow key increases the oxygen level and pressing the ▼ arrow
key decreases the oxygen level.
Once the oxygen level is within the specified range at 45%, press the ENTER key to 41.
store the selected blower output voltage for the 45% valve position.
Press the ▲ arrow key until SET Valve Position appears on the C-MORE display.
42.
Press the CHANGE key. SET Valve Position will begin to flash. 43.
Press the ▼ arrow key until the SET Valve Position reads 30%, then press the ENTER
44.
key.
Press the ▼ arrow key until CAL Voltage 30% is displayed.
45.
Press the CHANGE key. CAL Voltage 30% will begin to flash. 46.