AERCO BMK 1.5 LN Dual Fuel Feb 2013 - Manual (Page 49)

CHAPTER 4: INITIAL START-UP
PR2: 05/09/12 Page 49 of 162
Benchmark 1.5LN Dual-Fuel Low NOx Boiler
Operation and Maintenance Manual
OMM-0041_0C
GF-121
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526-0288
17. If necessary, adjust the iris air damper shown in Figure 4-5 until the oxygen level is
within the range specified in Table 4-1.
18. Once the oxygen level is within the specified range at 100%, lower the valve
position to 80%.
Figure 4-6: Iris Air Damper Location/Adjustment
NOTE
The remaining combustion calibration steps are performed
using the Combustion Cal Menu included in the C-More
Control System. The combustion calibration control functions
will be used to adjust the oxygen level (%) at air/fuel valve
positions of 80%, 60%, 45%, 30% and 16% as described in
the following steps. These steps assume that the inlet air
temperature is within the range of 50°F to 100°F.
19. Press the MENU key on the front panel of the C-MORE and access the Setup
menu. Enter password 6817 and then press the ENTER key.
20. Press the MENU key on the front panel of the C-MORE until Combustion Cal Menu
appears on the C-More display.
21. Press the ▲ arrow key until SET Valve Position appears on the C-MORE display.
22. Press the
CHANGE key. SET Valve Position will begin to flash.
23. Press the ▲ arrow key until the SET Valve Position reads 80%. Press the ENTER
key.
24. Next, press the down (▼) arrow key until CAL Voltage 80% is displayed.
25. Press the
CHANGE key and observe that CAL Voltage 80% is flashing.
26. The oxygen level at the 80% valve position should be as shown below. Also, ensure
that the carbon monoxide (CO) and nitrogen oxide (NOx) readings do not exceed
the values shown.