AERCO BMK 1.5 LN Dual Fuel June 2010 - Manual (Page 36)

INITIAL START-UP
USE 1/2"
WRENCH TO
INCREASE (CW)
OR DECREASE
(CCW) INLET AIR
IRIS ADJUSTMENT
VIEW A - A
AIR INLET
IRIS AIR
DAMPER
A A
AIR/FUEL
VALVE
FRONT
Figure 4-5
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 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.
18. 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.
19. Press the MENU Key on the front panel of
the C-MORE until Combustion Cal Menu
appears on the C-More display.
20. Press the ▲ arrow key until SET Valve
Position appears on the C-MORE display.
21. Press the CHANGE key. SET Valve Position
will begin to flash.
22. Press the ▲ arrow key until the SET Valve
Position reads 80%. Press the ENTER key.
23. Next, press the down (▼) arrow key until
CAL Voltage 80% is displayed.
24. Press the CHANGE key and observe that
CAL Voltage 80% is flashing.
25. 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.
Combustion Oxygen Level at
80% Valve Position
Oxygen %
± 0.2
Carbon
Monoxide NOx
6.0 % <100 ppm <30 ppm
26. If the oxygen level is not within the specified
range, adjust the level using the ▲ and ▼
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
down ▼ arrow key decreases the oxygen
level.
27. Once the oxygen level is within the specified
range at 80%, press the ENTER key to store
the selected blower output voltage for the
80% valve position.
NOTE
The remaining steps basically repeat the
procedures in steps 20 through 27 for
valve positions of 60%, 45%, 30% and
16%. However, since oxygen levels vary,
these steps are repeated in their entirety.
When performing these steps, also
ensure that the carbon monoxide (CO)
and nitrogen oxide (NOx) readings do not
exceed the values shown for each valve
position.
28. Press the ▲ arrow key until SET Valve
Position appears on the C-MORE display.
29. Press the CHANGE key. SET Valve Position
will begin to flash.
30. Press the ▼ arrow key until the SET Valve
Position reads 60% and press the ENTER
key.
4-4