Orival OR-02-PE, Operation And Maintenance Manual, Page: 31 / 51

ORIVAL, INC. • 213 S. Van Brunt St. • Englewood, NJ 07631 • (201) 568-3311
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NOTE: Large particulates (greater than 3/8’’) trapped by the coarse screen are not
removed by automatic or continuous cleaning, and will accumulate over a period of
time. The recommended semi-annual interval for the inspection for and removal of
these particulates may have to be shortened based on site conditions. During normal
filtration, the inlet pressure and chamber pressure should equal each other. A
decreasing chamber value over time is an indication that large particulates are
accumulating on the outside of the coarse screen. This reduces filter efficiency by
increasing the frequency of rinse cycles since the filter is starting at a higher DP after a
rinsing cycle due to these retained particles.
SECTION 8 - ELECTRICAL CONTROL SYSTEMS
The OMNITROL 2000 is the latest generation of controls available. It provides for
control of up to ten filters or functions, and includes many options.
The
OMNITROL 500 is a powerful controller, which provides for control of up to two
filters (optional 4 or 6 filters) , and includes many options at a low cost.
The
OMNITROL 100 is a powerful battery powered controller, which provides for control
of one or two filters, all at a low cost.
For complete information on the control system supplied with your filter, please refer to
the Operation & Maintenance Manual Supplement, which accompanied your control
system.
NOTE : Controllers allow the user to easily adjust such parameters as rinse cycle
duration, differential pressure switch delay, rinse cycle frequency, dwell time
between filters, and others. A value is given in the Control System manual for
the rinse cycle duration, which should not be adjusted from this value unless
absolutely necessary. Improper adjustment may result in inadequate or lengthy
rinse cycles, which can lead to filter malfunction.