3 End User Operation
3.3.2 Fuel-Air – Map
Figure 3.3.2.i Fuel-Air – Map
Press in the Fuel-Air screen in Figure 3.3.1.i to view the commissioned trim values if an EGA
has been enabled with trim. The air rich (A+) and fuel rich (A-) values are shown for each
commissioned point on the fuel-air curve, for the O
2
, CO and CO
2
. The graph shows the EGA’s current
readings and if there is any trim correction on the air damper. The circle on the fuel-air map indicates
the current position of the trim correction, and how far the current combustion values are from the
commissioned values.
Note: Option 12 must be set to 2 or 3 for the 3-parameter trim function to be activated.
22.05.2017 Mk8 MM End User Guide Page 19
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