lev-co 13-12, User Manual

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8.6 Troubleshooting
This is again similar to a standard system, with the exception that the shaker motor may fail causing an
overload trip. The root cause for such a failure must be determined before attempting to reset the
overload.
9 Wet Cleaning – Enhanced Control System
This control system is a factory- or field-installed enhancement to a standard control system for wet col-
lectors, the standard for which comprises a motor starter and a mechanical float for water level control.
The enhanced system has two major functions:
1. Permit the establishment of a target negative pressure in the duct and maintain it regardless of
changing conditions.
2. Control and monitor water level, including the management of various process triggers.
The first function is primarily implemented by the use of a VFD for fan motor control; the second by the
use of an ultrasonic liquid level detector with multiple programmable sensing points.
The installation and calibration of a wet control system is lengthy and detailed. Thus, this system has its
own User Guide, referenced in the Reference Documents section.