amiad BMF Series, Инструкции по установке, эксплуатации и обслуживанию

Страница: 5 / 51

Rev: 10.2017 BMF Pre-Engineered Skid IOM 5
Electrical
It is highly recommended that all electrical hook-ups to the Amiad BMF filter system be done by a
qualified electrician. The control panel supplied on each BMF system will have a wiring diagram inside
which references all electrical power requirements (voltage, hertz, etc.) and should be used by the
electrician. If your system does not have this paperwork, please contact the factory for a copy before
any further work is performed.
Table 4A & 4B can be used as a reference for BMF pump motors, but
always check and use the supplied pump motor nameplate values. These values will vary between all
motor manufacturers.
Loading the Filter Media
The special sand media used in Amiad BMF media filters is shipped in one half cubic foot bags and
each bag weights 50 lbs. Refer to
Table 5 for media loading quantities. Media quantity may vary with
vessel pressure ratings. Correct quantities will be noted on the shipping and inspection records for
each filter system.
Important! To avoid damage to the filter under-drain, the filter vessel must be filled with water (1/3
to 1/2 full) before loading media into the vessel. The under-drain support media is loaded first ( see
note below ). For single applications, the silica sand is loaded next. Check filter internals for damage
before loading the media.
Start-up & Operation
Initial and Seasonal Start-up
Before initial start-up or after a down period, the filter should be thoroughly inspected and cleaned.
Caution, Safety First! The first five steps in the following procedure must be performed with the
electric power off, locked and tagged at the main panel. Maintenance personnel should follow the
recommended safety precautions found in the Safety Precautions section in the manual prior to initial
and seasonal start-up.
BMF Tanks (tanks only – no pump)
1. Loosen the access port and man hole covers and lubricate the bolts if necessary.
2. Inspect the over-drain assembly and media. If the media is contaminated, remove the foreign
material or replace the media. Replace the access port and manway covers.
3. Open the air relief valve on top of the filter tank and start flow from source.
4. Set pneumatic regulator to 85 PSI as indicated by the gauge on the regulator. Run a test on
the valve operation to ensure that enough air and pressure is available.
5. Differential pressure switch comes set from the factory at 16 PSI.
6. Check the voltage and current to the control panel for proper voltage and amps.
7. 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.
8. Backwash the filter 3-4 times initially to remove any fine grit or contaminants that may be in
the media. After backwashing the filter, check the pressure gauge on top of the filter tank and
record the clean media operating pressure (inlet gauge). The media should be backwashed
whenever the pressure drop across the filter media reaches 16 PSI, or every 24 hours,
whichever occurs first.
BMF System (tank and pump)
1. BMF filter with pre-strainers: make sure water supply to pump suction is shut off to prevent
flooding. Loosen the bolts around the pump pre-strainer tank lid. Remove the lid, inspect the
O-ring seal and lubricate. Remove debris from the
pump pre-strainer basket. Replace the
basket, lid and bolts. Open water supply shut off valve to ensure pump suction is flooded.
2. Turn the pump and motor shaft by hand to ensure free rotation.
3. Loosen the access port and manway covers and lubricate the bolts if necessary.
4. Inspect the over-drain assembly and media. If the media is contaminated, remove the foreign
material or replace the media. Replace the access port and manway covers.
5. Open the air relief valve on top of the filter tank. Start the pump motor briefly and check the
arrow on the pump volute for proper rotation. Turn the pump motor off.
Do not operate the