PEP Filters BMF - Manual (Page 5)

BMF Series Media Filter
Operating & Maintenance Manual
PEP Filters • 322 Rolling Hill Road • Mooresville, NC 28117 • 800-243-4583 • www.pepfilters.com
704-662-3133 (Outside USA) Page 5 of 14 Fax 704-662-3155
rev. 01/02
motor nameplate rating.
9. Check the unit for any unusual noise or vibration.
10. Check the unit for any air or water leaks. Any air leaks in the pump suction piping must be found and repaired.
Failure to do so could result in poor performance and/or personal injury.
11. Backwash the filter. After backwashing the filter, check the pressure gauge on top of the filter tank and record the
clean media operating pressure gauge (inlet gauge). The media should be backwashed whenever the pressure drop
across the filter media reaches 16 psig, or every 24 hours, whichever occurs first.
After First Hour of Operation
1. With the filter pump running, open the air relief valve on top of the filter vessel. Close the valve after the air has been
purged from the system. Excessive air release generally indicates a leak, which must be repaired. Air accumulation in
the filter vessel can result in an unsafe condition due to the stored high energy potential of any compressed air within
the vessel.
2. Again, check the unit for any unusual noise or vibration.
3. Again, check unit for any air or water leaks.
Operation
During operation, to ensure long term dependable operation, the filter should be inspected, cleaned and lubricated on a
regular basis. The required service functions and recommended frequency (minimums) for each are shown in the Operating
and Maintenance Table.
Cold Weather Operation
For PEP industrial water filters that will be exposed to below freezing ambient temperatures require protection to prevent
freezing. Installation in a heated indoor space is the best means of preventing water from freezing in a filter. Where indoor
installation is impractical because of filter location or space limitations, supplemental heat must be supplied through the use of
electrical heater tape and insulation. The parts of the filter that must be heat traced and insulated are: pump, pump pre-strainer,
pump piping and valves, differential pressure switch tubing and filter vessel. The unit should be drained when it is to be shut
down for any period of time. Refer to the following (Seasonal Shutdown) section in this the manual for recommendations.
Seasonal Shutdown
The following services should be performed when the unit is to taken out of service for a extended time period.
1. Shut off all electrical power.
2. Close the shut-off valves in the filter inlet and outlet water lines. For units using a backwash source other than the
system, close the shut off valve in the line from that source also.
3. Drain all external piping to and from the filter.
4. Open the manual vent valves and open the drain line to the filter tank and piping. After the water has drained,
close the drain and vent.
5. On manual units only, rotate the valves manually by moving the linkage up and down to ensure operation without
obstruction.
6. Loosen the bolts that hold the filter vessel access covers in place and remove the cover. Lubricate the bolts if
necessary. Replace the cover gaskets if necessary.
7. Inspect the over-drain assembly and media pack. If the media is contaminated, remove the foreign material and
replace the filter media if necessary. Replace the filter vessel access covers and secure the bolts.