Edge [ii] Controller Operation Manual
SECTION 6
– ADVANCED SETUP
OMM-139_E
• 8/25/2020 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page
158
of
196
O
2
Trim Parameters
Each Benchmark model has specific default valve positions. The
O
2
Trim Parameters
screen
provides the ability to view, and if necessary, adjust the
O
2
Target
, O
2
Upper Limit
and
O
2
Lower Limit
to suite specific conditions at each default valve position on this unit only.
1. Go to:
Main Menu
→
Advanced Setup
→
Performance
→
AERtrim
→
O2 Trim
Parameters
.
Figure 6.6.1.2: AERtrim: O
2
Trim Parameters
2. Select a pre-defined
Valve Position
for the unit, from the minimum up to 100%.
3. Enter values in the following three parameters for the position chosen in Step 2, as needed
to suite site specific conditions:
•
O2 Lower Limit
: Must be at least 1% lower than O
2
Upper Limit.
(Range: 2.5% to 5.5%)
•
O2 Target
: Must be between O
2
Upper & O
2
Lower Limits. (Range: 3.0% to 8%)
•
O2 Upper Limit
: Must be at least 1% higher than O
2
Lower Limit.
(Range: 5.5% to 8.5%)
4. If necessary, repeat Step 2, choosing another valve position, then repeat Step 3 to enter
appropriate values in the three parameters for the new valve position.
AERtrim Status
the
AERtrim
Status
screen displays the current status of various AERtrim parameters and
allows you to enable/disable
O2 Monitoring
functionality on this unit only.