Specialty Concepts ASC - Manual (Page 17)

ASC PROBLEM DESCRIPTIONS
(from the ASC PROBLEM CHART)
ASC Note 1 - A continuous low-voltage condition with good charging during the day would indicate
that the controller is functional but one of the following problems exists:
• A system sizing problem. See SYSTEM IS NOT SIZED CORRECTLY (Help Note #5)
••
A problem exists with the solar panels. See SOLAR PANEL PROBLEM SECTION
••
A problem exists with the batteries. See BATTERY PROBLEM SECTION
ASC Note 2 - A low-voltage condition with no charging during the day would indicate one of the
following:
• The system has no panel input. See BAD CONNECTION: PANEL (Help Note #8)
••
The ASC is out of calibration and is set too low (for units with Option-F only). See
INCORRECT CALIBRATION (Help Note #11)
••
The ASC is defective. See CONTROLLER DEFECTIVE (Help Note #12)
ASC Note 3 - A moderate voltage condition where the charging appears to stop too soon (below
14.0 volts*) would indicate one of the following:
••
The ASC has a bad battery connection. Somewhere in the battery connection there is a
voltage drop that causes the controller to sense a higher battery voltage than what
actually exists. See BAD CONNECTION: BATTERY (Help Note #9)
••
The ASC is out of calibration and is set too low (for units with F-Option only). See
INCORRECT CALIBRATION (Help Note #11)
••
Temperature Compensation (Option-A) can change the charging set-points. On hot days the
voltage set-point can be ½ volt* lower. See TEMPERATURE (Help Note #4)
••
The ASC is defective. See CONTROLLER DEFECTIVE (Help Note #12)
ASC Note 4 - A high voltage condition with additional charging would indicate one of the
following:
• The battery voltage may be just under the charge termination set-point and has not shut off
yet. See NORMAL OPERATION: CHARGING / NOT CHARGING (Help Note #1)
• The ASC is out of calibration and is set too high (for units with Option-F only). See
INCORRECT CALIBRATION (Help Note #11)
••
Temperature Compensation (Option-A) can change the charging set-points. On cold days the
voltage set-point can be ½ volt* higher. See TEMPERATURE (Help Note #4)
• The ASC is defective. See CONTROLLER DEFECTIVE (Help Note #12)
* Voltages above are for 12 volt systems. For 6 volt systems, use half the listed voltage. For 24 volt
systems, multiply by 2. For 36 volts, multiply by 3. For 48 volts, multiply by 4.