Watts AERCO Benchmark OMM-0136 Operation And Service Manual page 137

Benchmark Platinum-Edge [II]: Operation-Service Manual
SECTION 9 – AERTRIM OPERATION
The Edge Controller does not display a message when O
However, if O levels fall outside the target range, one of the messages listed in Table 9-2 will be
2
displayed in the Auto Calibration Status parameter on the Main Menu → Advanced Setup →
Performance → AERtrim → AERtrim Status screen.
TABLE 9-2: AERtrim Operation Interruption Errors
Error Message
BV Hi Err
BV Lo Err
Max Iter
Tmp Rng Err
FR Rng Err
OMM-0137_E • GF-211 •
12/13/2019
Cause
Trim operation exceeds
allowable blower voltage limits
Trim Operation reached
maximum iteration. Wait and
try again
Outlet temp is outside of
temperature range
Fire Rate is not within track
range during trim operation
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
levels are within the target range.
2
Possible Solutions
Check air filter, gas regulator,
combustion calibration
Check sensor calibration; it may need
to be replaced
Check sensor calibration for
inaccuracies
Increase gain or iteration attempts
None-Normal Operation
None – Steady State has not been
achieved
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