amiad BMF Series Manual

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Amiad!USA,!Inc.!
Tel:!704.662.3133!
E-mail:![e-mail]!
120!Talbert!Road,!Suite!J!!
Fax:!704.662.3155!
Web:!www.amiadusa.com!
Mooresville,!NC!28117!
Toll!Free:!800.243.4583!
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BMF Series Pre-Engineered
HVAC Filter Skid
Installation, Operation and
Maintenance Instructions
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Disclaimer: !
This document and the information enclosed within it contain restricted and/or privileged information that are intended only for usage
by authorized Amiad technicians. If you are not a qualified Amiad technician you must not take any action in reliance on this document,
unless permitted by Amiad.
None of the procedures provided in this file may be used in any form or by any means without permission from Amiad.
If you received this file in error, please notify Amiad immediately.
The confidential nature of and/or privilege in the file enclosed is not waived or lost as a result of a mistake or error in this file.
Amiad accepts no liability whatsoever, whether it was caused by:
1. Accessing or other related actions to this file.
2. Any links, procedures or materials provided/attached to this file.
Amiad assumes that all users understand risks involved within this file and/or its attached materials.
All the procedures, drawings, pictures and/or any other information provided in this document are presented as general information
only; they can be altered, removed or changed without any further notice by Amiad.
This document does not replace any certified drawing, procedure or information provided by Amiad in reference to a specific customer,
site or project.
All rights reserved.

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Table of Contents
Introduction ....................................................................... Page 3
Installation................................................................................. 3
Start-up & Operation ................................................................... 5
Maintenance Procedures............................................................... 7
Water Treatment......................................................................... 7
Factory Authorized Parts .............................................................. 8
Safety Precautions ...................................................................... 8
Amiad Limited Warranty............................................................... 9
Table 1 – BMF Service Schedule .................................................. 10
Table 2 – BMF Connections......................................................... 11
Table 3 – BMF Flow Rates........................................................... 11
Table 4A & B – BMF Electrical Requirements, 50 & 60 Hz ................ 11
Table 5 – BMF Media Quantity..................................................... 12
Table 6 – BMF Replacement Parts................................................ 12
Table 7 – Troubleshooting .......................................................... 15
Pump Curves ............................................................................ 17
Level I Controller ...................................................................... 25
Appendix 1 – Pump IOM............................................................. 34
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Introduction
Amiad filtration equipment has been designed to give long term, trouble-free service when properly
installed, operated and maintained. This manual contains important installation procedures and should
be read prior to installing. This manual is also a guide for proper filter operation, maintenance and
winterizing. It is important that maintenance personnel review this manual carefully, including the
Safety Precautions and Warnings before performing any maintenance on this sand media water filter.
Note that the recommendations on the frequency service are minimums, and where operating
conditions are severe, the service should be performed more often. For each required service, follow
the procedures outlined under the Maintenance Procedures section in this manual. If additional
information beyond the scope of this manual is required, contact your local Amiad Representative or
the factory.
General Description
The BMF Series Sand Media Filters are permanent media type units specifically designed to clean
process water. The filters may be used for both side-stream and full stream applications in pressurized
and non-pressurized systems. Standard BMF series filter vessels are rated for 100 PSI for the 54” thru
96” tanks. All pressure ratings are based on a maximum temperature of 100 degrees Fahrenheit.
Amiad can provide tanks with higher pressure ratings, as well as ASME Code design and construction.
Please contact the factory for details and pricing.
Filter Operation
Water from the system is pumped through the over-drain assembly at the top of the filter tank and
distributed evenly over the media. Unfiltered water flows downward through the filter media where
suspended particles are trapped. The filtered water then passes through the vessel and out the
under-drain assembly at the bottom of the filter and returns to the system.
When the trapped particles cause the pressure differential across the media bed to reach a pre-
determined pressure of approximately 16 PSI flow is reversed through the tank by repositioning the
valves automatically or manually. The media is backwashed with a rigorous scouring action, releasing
trapped particles within the media. The dirty water passes from the filter vessel through the over-
drain assembly at the top of the vessel and flows to drain. After the backwash cycle (field adjustable
and factory pre-set at 2 minutes), the filter valves are again repositioned and the filtration cycle is
resumed.
Installation
CAUTION!!! Water sources vary and may contain impurities that can adversely affect a filter
system. Minerals, biological microbes and other impurities must be identified and addressed by each
user on a case-by-case basis. Contact your filtration system dealer or the factory for additional
information and recommendations.
Please review installation and operations manuals of individual parts within the system. This manual
may not cover all processes and/or procedures of these parts.
Unpacking
When the Amiad BMF Media Filter is delivered to the jobsite, it should be inspected thoroughly to
ensure that all required items have been received and that filter equipment is free of any damage that
may have occurred in transit. Any damage must be noted on the bill of lading at the time of receipt.
Without this, there is no recourse to recover the cost of damaged goods. The filter model number
appears on a nameplate located on the unit and should be checked against the invoice/packing list.

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Rigging
Amiad BMF filters should be lifted with a forklift or overhead crane. If these units are lifted with an
overhead crane, lifting straps must be located below the filter skid and should not come in contact
with the filter components. If no skid is supplied, lift from the lifting lugs located on the filter vessel
top.
All Amiad BMF filters should be rigidly anchored to the floor or support steel by means of anchor bolts.
All filters have an anchoring provision. Once the filter in installed in its permanent location, the
pressure gauge and air relief valves should be installed on the top of the filter tank (some units will
have these items already installed). The sand media is loaded into the filter next. Refer to the section
in this manual “Loading the Media” for the proper loading procedure and the appropriate quantity of
media necessary for each size filter vessel.
Piping
The Amiad BMF should be installed using the pipe size indicated in Table 2.
Connect the unfiltered source water from the system sump or piping to the connection labeled “Inlet”.
NOTE: All Amiad BMF systems have end suction centrifugal style pumps that require flooded suction
for proper operation. Piping to the pump suction inlet should be plumbed to ensure the pipe is full of
water at all times.
Connect the return line from the connection labeled “Outlet” to the system sump or filtered water
return piping.
A service or isolation valve should be installed on the inlet, outlet and city water line (if city water is
used) to allow filter servicing. For units using a backwash source other than the system sump, refer
to Table 3 for the required backwash flow rate. The maximum city water backwash supply pressure to
the filter vessel should never exceed the vessel pressure rating (100 PSI as standard). If public or
municipal water is used for backwash, a back/low prevention device or check valve is required on the
city water line (in accordance with local or other governing codes).
A backwash throttle valve should be placed on the backwash discharge manifold to control the volume
of water that can escape during backwash. Obtaining the proper flow rate of the backwash water is
essential for effective flushing of the media. Too high of a flow will flush all of the media out of the
tank. Too low of a flow will not allow the media to gently lift, fluidize and flush filtered particulates
from the media in the system. The proper flow rate is dependent on the size of the tank being
flushed. The most common way to adjust the backwash throttle valve is to manually set the filter(s) to
backwash with the throttle valve fully closed. Slowly open the throttle valve until small amounts of
media are evident in the backwash discharge. It is desirable to have a slight amount of media
discharge during backwash. You should expect to lose several inches of sand per year with proper
backwashing. Although the media fills 2/3 of the tank, it makes most sense to try to keep the
contamination in the top two inches of the media bed. This will allow you to quickly rinse the media
during the backwash sequence. If the media contamination reaches depths below two inches, it will
take a much longer backwash to rinse the media. This can also cause contamination of the under drain
of your filter system. Proper backwash frequency must be determined to minimize contamination and
clogged under drains.
Refer to Table 3 for the minimum and maximum backwash flow rates. Note: if the drain is not large
enough to handle the volume of water during backwash, it may be necessary to use a backwash water
holding tank to buffer the backwash flow rate from the filter to the waste drain. A valve can be used
to regulate the flow from the holding tank at a reduced flow rate that is suitable for the drain. Do not
reduce the waste line pipe to regulate backwash flow rate as this will adversely affect the backwash
cycle and cause accumulated waste in the filter vessel.
All inter-connecting piping, fitting, valves, or other accessories connected to the filter system (whether
supplied by Amiad or others) must be independently supported to eliminate stress on piping. Check
with local or other governmental authority to ensure compliance with applicable codes.
All Amiad BMF filter vessels have a drain plug located on the bottom.

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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

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pump for an extended period of time with the pump rotating backwards! If rotation is
backward, have a qualified electrician change pump motor leads to correct rotation.
6. 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.
7. Differential pressure switch comes set from the factory at 16 PSI.
8. With the air relief valve open, check the isolation valves in the filter inlet and outlet water lines
to verify they are open. Make sure the pump is primed. Start the pump and allow the filter
vessel to fill. Close the manual air relief valve on top of the vessel after all air has been vented
from the vessel.
9. Check the voltage and current of all leads on the pump motor. The current draw should not
exceed the pump motor nameplate rating. Check for any unusual noise or vibrations.
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 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.
After First Hour of Operation
1. With the filter pump running, the auto air vent releases air from top of the filter vessel.
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 1. If any problems occur,
please refer to Table 7 for Troubleshooting Procedures. If you have any questions, please contact the
factory.
Cold Weather Operation
Amiad BMF media 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. When 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 section, Seasonal
Shutdown, for recommendations.
Seasonal Shutdown
The following services should be performed when the unit is to be taken out of service for an extended
period of time.
1. Shut off all electrical power.
2. Close the isolation valves on the filter inlet and outlet water lines. For units using a backwash
source other than the system, close the isolation valve on the line from that source also.
3. Drain all external piping to and from the filter.
4. 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.
5. Inspect the over-drain assembly and media pack. If the media in contaminated, remove the
foreign material and replace the filter media if necessary. Replace the filter vessel access
covers and secure the bolts.

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Maintenance Procedures
Refer to Table 1 for suggested operation and maintenance schedules of Amiad BMF systems.
Pump Pre-strainer (if equipped)
Warning! Disconnect all electrical power prior to performing pump maintenance. The filter pre-strainer
basket on the pump inlet must be checked regularly and kept free of debris. Failure to do so may
damage the pump and/or motor. Shut off the power, close the valves, open the manual air relief
valve, and remove bolts and the pre-strainer cover. Lift the basket out of the housing and remove
any foreign material. Replace the basket, lubricate the O-ring, install the cover and tighten the bolts.
Backwashing
Differential pressure across the filter media progressively increases as trapped particulate accumulate
in the filter media bed. On filters equipped with automatic backwash, the backwash cycle is initiated
upon reaching a 16 PSI pressure differential. Since units with automatic controls perform this function
as necessary, a detailed backwash procedure is only provided for manual units. However, automatic
units can be manually backwashed by selecting Flush with the 3 position switch located on the control
panel. The backwash cycle is field adjustable on most units and is factory set at two minutes. To
prevent unfiltered water from “short circuiting” through the media and to extend media life, the filter
should be backwashed regularly; at least once every 24-48 hours.
For manual backwash filters using a backwash water source other than the unfiltered source water
(e.g. city water):
1. Shut off the electrical power to the pump motor
2. Move the handle on the linkage to position the valves in backwash mode
3. Allow the filter to backwash for approximately three minutes
4. Move the handle on the linkage to position the valves in the filtration mode
5. Re-start the pump motor
For manual control units using the system water for backwash:
1. Shut off the electrical power to the pump motor
2. Move the handle on the linkage to position the valves in the backwash mode
3. Re-start the pump motor
4. Allow the filter to backwash for approximately three minutes
5. Shut off the electrical power to the pump motor
6. Move the handle on the linkage to position the vales in filtration mode
7. Re-start the pump motor
Filter Vessel
The filter vessel internal components should be visually inspected annually or whenever backwashing
does not reduce the pressure of the filter tank to the starting media gauge pressure. Remove the
access port on the top of the tank to inspect the internal components.
Note: Always use care and follow proper shut-down procedures. Inspect the over-drain assembly for
any debris, blockage or damage, and clean or replace if necessary. Remove and inspect the media.
The BMF filters have hand hole ports located on the side of the tank for easy removal of the media and
inspection of the under-drain assembly. Over a period of time, foreign matter may become embedded
in the media pack that cannot be removed by backwashing. Contaminated media should be disposed
of in accordance with state and federal requirements. Unscrew the under-drain laterals and inspect for
blockage or damage. Clean or replace if necessary. If replacement of one or more laterals is
necessary, it is recommended to replace all laterals in the under-drain. Refill the vessel with the
proper amount of new media, following the procedure for media loading.
Water Treatment
Filtration is an effective way of reducing and managing the level of contamination in a fluid system.
However, there are other components of equal importance in a water treatment program. For closed
loop systems, the water must often be further treated to inhibit or prevent the deposition of dissolved
solids on heat transfer surfaces. As water evaporates, without proper treatment, the concentration of
dissolved solids increases and will result in scale build-up on heat transfer surfaces. Additionally, water

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often requires treatment for the control of corrosion, bacteria (including Legionella) and other
biological contaminants.
To control all potential contaminants, a comprehensive water treatment program must be developed
and employed. For specific recommendations on water treatment, a water treatment professional
should be consulted.
Factory Authorized Parts
Factory authorized parts are available through your Amiad representative. Please refer to Table 6 for
replacement parts. Contact the factory if assistance is required. Be sure to include the filter serial
number and model when ordering parts.
To facilitate servicing the unit, it is suggested that the following spare parts be carried on hand:
1. O-ring or gasket for filter tank access port and man hole
2. O-ring seal or gasket for pump pre-strainer lid (if applicable)
3. Pump Repair Kit (mechanical seal) – for systems with pumps only
Safety Precautions
All electrical, mechanical and rotating machinery constitute a potential hazard; particularly for those
not familiar with design, construction, and operation. Adequate safeguards (including use of
protective enclosures, when necessary) should be taken with this equipment both to safeguard the
public from injury and to prevent damage to the filtration equipment and the premises.
Filter system operation, maintenance and repair should be undertaken only by trained and qualified
personnel. All such personnel should be thoroughly familiar with the equipment, the associated
system and controls, and the procedures set forth in this manual. Proper care, procedures, and tools
must be used in handling, lifting, installing, operating, maintaining, and repairing this equipment, to
prevent personal injury and/or property damage.
For the protection of authorized service and maintenance personnel, the pump motor associated with
this equipment should be installed with a lockable disconnect switch located in close proximity and
within sight of the filtration system. No service work should be performed on or near the pump
motors without first ensuring that the pump motor has been electrically disconnected and locked out.
The re-circulating water system may contain chemicals or biological contaminants that could be
harmful if inhaled or ingested. Accordingly, personnel that may be exposed directly to the mist
produced by water jets or compressed air (if these are used to clean portions or components of the
filter) should wear respirators with HEPA filters, NIOSH/MSHA approved number TC-21C-142/TC-
21C182.

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AMIAD LIMITED WARRANTY made with respect to Products specified in invoice no. ________
1. This certificate applies to Amiad Products purchased by ______________ (“Purchaser”). This limited warranty extends
only to the original purchaser, and is not transferable to anyone who subsequently purchases, leases, or otherwise
obtains the Product from the original purchaser.
2. Amiad hereby warrants that the Products are and will be free from defects in material and workmanship under normal
use and service. Amiad warrants that it will correct manufacturing defects in the Products, in accordance with the
conditions set out in this warranty.
3. This warranty is enforceable for a period of 12 months as of the date Bill of Lading or equivalent (the “Warranty
Period”).
4. In the event that during the Warranty Period the Purchaser discovers a defect in material and/or workmanship in any
Product or part (the “Defective Product”), it shall submit a written complaint to Amiad using Amiad’ s standard
customer complaint form. For the receipt of the customer complaint form, the submissions of the complaint or any
questions please contact your customer service representative.
5. Upon written demand by Amiad the Purchaser shall return the Defective Products – or a sample thereof – to Amiad, at
Amiad’s cost. If the customer ships any such Product, Amiad suggests the customer package it securely and insure it
for value, as Amiad assumes no liability for any loss or damage occurring during shipment. Provided however that in
the event Amiad determines that the warranty does not apply to such Product, Purchaser shall promptly reimburse
Amiad for such cost (including freight and customs). Any returned Product or part must be accompanied by the warranty
certificate and the purchase invoice. It is clarified that the Purchaser may not return the Defective Product unless such
return was coordinate and approved by Amiad in advance.
6. Amiad's obligation under this warranty shall be limited to, at its option, the repair or exchange, free of charge, of the
Product or any part which may prove defective under normal use and service during the Warranty Period. The provision
of a repaired or replacement Product during the Warranty Period will result in an extension of the Warranty Period by
an additional period of 12 months, provided that the total accumulated Warranty Period shall in any event be no more
than 18 months.
7. This warranty is valid on the condition that the Products are installed according to Amiad's instructions as expressed in
Amiad's instruction manuals and according to the technical limitations as stipulated in Amiad's literature or as stated by
a representative of Amiad.
8. This warranty will not apply to damaged or defective Products resulting from or related to:
9. Fire, flood, power surges or failures or any other catastrophe/and or unforeseen occurrence, such as but not limited to
those for which the customers are customarily insured;
10. Fault, abuse or negligence of the customer;
11. Customer's responsibilities, including the failure of the intake water to meet the agreed standards, as set forth in a
written document, approved by Amiad or improper storage.
12. Improper or unauthorized use of the Product or related parts by the customer, including the customer’s failure to operate
the Product in conformity with the recommendations and instructions of Amiad, as set forth in Amiad's manuals and
other written materials, the operation of the Product other than by a trained and qualified operator, or improper
installation of the Product by a third party not authorized by Amiad;
13. Performance by the customer of maintenance and other services other than by a trained and qualified advanced
operator, or other than in conformity with the recommendations and instructions of Amiad, or other than in accordance
with procedures defined in the literature supplied for Products;
14. Any alteration, modification foreign attachment to or repair of the Products, other than by Amiad or its authorized
technical representatives.
15. In no event shall Amiad be liable to the customer or any third party for any damages, including indirect, special,
exemplary, punitive or consequential damages, or lost profits arising out of or in connection with this warranty, or
arising out of or in connection with the Product's performance or failure to perform, even if it has been advised of the
possibility of such damages.
16. Amiad will be excused for failure to perform or for delay in performance hereunder if such failure or delay is due to
causes beyond its reasonable control or force majeure preventing or hindering performance.
17. The limited warranty set forth herein is the only warranty given by Amiad and is provided in lieu of any other warranties
created by any documentation, packaging or otherwise.
18. Amiad makes no warranty whatsoever in respect of accessories or parts not supplied by Amiad. In the event
that Amiad is required to correct a defective product or product not covered by this warranty, it will do so
solely in consideration for additional fees.

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TABLE 1 – BMF Service Schedule
Service Type
Start
Up
Monthly
Semi-
annually
Shutdown
Annually
General inspection of
condition of unit
X
X
Drain condensate from
air line to pneumatic
actuator
(if applicable)
As required
Clean pre-strainer
basket
As required
Inspect gaskets
X
X
X
Check pump shaft for
free rotation
X
X
Check operation of
valves
X
X
X
Check, lubricate clamp
on filter tank access
port
X
X
Inspect over-drain
assembly & media pack
X
X
X
Check pump motor for
proper rotation
X
Check motor voltage &
current
X
X
X
Prime pump
X
Check pressure gauge
reading (top of filter)
X
X
Check unit for unusual
noise or vibration
X
X
Check unit for leaks
X
X
Drain filter & piping
X

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TABLE 2 - BMF Connections
(All in inches)
Filter
Model
Filter Inlet
Filter Outlet
Backwash
Pump Inlet
(Optional)
Pre-strainer
BMF-54
4
4
4
3
4
BMF-60
4
4
4
3
4
BMF-66
4
4
4
5
5
BMF-72
6
6
6
5
5
BMF-78
6
6
6
5
5
BMF-84
6
6
6
5
6
BMF-90
6
6
6
6
6
BMF-96
8
8
8
6
6
TABLE 3 - BMF Flow Rates
Filter
Model
Filtration Flow
Rate
GPM / LPS
Backwash
Minimum
GPM /LPS
Backwash
Maximum
GPM / LPS
BMF-54
318 / 20.1
239 / 15
318 / 20.1
BMF-60
393 / 24.8
294 / 18.6
393 / 24.8
BMF-66
475 / 30
357 / 22.5
475 / 30
BMF-72
566 / 35.7
425 / 26.8
566 / 35.7
BMF-78
663 / 41.8
498 / 31.4
663 / 41.8
BMF-84
770 / 48.6
578 / 36.5
770 / 48.6
BMF-90
884 / 55.7
663 / 41.8
884 / 55.7
BMF-96
1006 /63.4
756 / 47.7
1006 / 63.4
TABLE 4A - BMF Electrical Requirements, 60 Hz
Filter Model
Pump
HP / KW
Voltage (3 phase)
60 HZ
Full Load Current
(Amps)
BMF-54
7.5 / 5.6
208, 230, 460, 575
24.2, 22, 11, 9
BMF-60, 66, 72
10 / 7.5
208, 230, 460, 575
30.8, 28, 14, 11
BMF-78, 84, 90
15 / 11.2
208, 230, 460, 575
46.2, 42, 21, 17
BMF-96
20 / 15
208, 230, 460, 575
59.4, 54, 27, 22
TABLE 4B - BMF Electrical Requirements, 50 Hz
Filter Model
Pump
HP / KW
Voltage (3 phase)
50 HZ
Full Load Current
Amps
BMF-54
7.5 / 5.6
380, 415
11.5, 10.6
BMF-60, 66, 72
10 / 7.5
380, 415
15.1, 13.5
BMF-78, 84, 90
15 / 11.2
380, 415
23.7, 22.4
BMF-96
20 / 15
380, 415
31.1, 29.2

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Rev:!10.2017! ! BMF!Pre-Engineered!Skid!IOM!!
12!
TABLE 5 - BMF Media Quantity
All ½ft3bags
Filter Model
QTY
Media
Part number
BMF-54 non code
36 + 68
Gravel + Sand
210401-000002
BMF-54 code ASME
50 + 68
Gravel + Sand
BMF-60 non code
46 + 84
Gravel + Sand
210402-000004
BMF-60 code ASME
66 + 84
Gravel + Sand
BMF-66 non code
58 + 102
Gravel + Sand
210403-000003
BMF-66 code ASME
82 + 102
Gravel + Sand
BMF-72 non code
74 + 128
Gravel + Sand
210404-000002
BMF-72 code ASME
106 + 128
Gravel + Sand
210404-000001
BMF-78 non code
94 + 150
Gravel + Sand
210405-000002
BMF-78 code ASME
128 + 150
Gravel + Sand
BMF-84 non code
112 + 174
Gravel + Sand
210406-000002
BMF-84 code ASME
160 + 174
Gravel + Sand
BMF-90 non code
136 + 200
Gravel + Sand
210407-000002
BMF-90 code ASME
176 + 200
Gravel + Sand
BMF-96 non code
162 + 272
Gravel + Sand
210408-000002
BMF-96 code ASME
232 + 272
Gravel + Sand
210408-000001
TABLE 6 - BMF Replacement Parts
Description
Filter Model
Part number
Pumps (60 Hz)
7.5 HP SCOT #25, HE WEG 184JM SF, BN
BMF-54
720401-000582
10 HP SCOT #25, HE WEG 215JM SF, BN
BMF-60
720401-000593
10 HP SCOT #104, HE WEG 215JP SF, BN
BMF-66
720401-000613
10 HP SCOT #105, HE WEG 215JP SF, BN
BMF-72
720401-000614
15 HP SCOT #105, HE WEG 254JP SF, BN
BMF-78
720401-000615
15 HP SCOT #105, HE WEG 254JP SF, BN
BMF-84
720401-000616
15 HP SCOT #96, HE WEG 254JP SF, BN
BMF-90
720401-000617
20 HP SCOT #96, HE WEG 256JP SF, BN
BMF-96
720401-000618
Seal kits
SEAL KIT - FOR SCOT PUMP # 25
BMF-54,60
720401-000271
SEAL KIT - FOR SCOT PUMP # 105
BMF-66 to 84
720401-000266
SEAL KIT - FOR SCOT PUMP # 96
BMF-90,96
720401-000303
Hand hole gaskets
6" X 8" HANDHOLE, NEOPRENE
BMF-54-96
770103-000271
Man way gaskets
12" X 16" HANDHOLE, NEOPRENE
BMF-54 to 96
770103-000277
14" X 18" HANDHOLE, NEOPRENE
BMF-96
770103-000279
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Rev:!10.2017! ! BMF!Pre-Engineered!Skid!IOM!!
13!
Description
Filter Model
Part number
Auto Air Vent
2''BARAK AIR RELIEF.VALVE
BMF-54 to 96
730108-000040
Gauge Assembly (2 required per system)
GAUGE ASSY 2.5", 100PSI LMASY
BMF-54 to 96
720301-000081
Differential Pressure Switch
DP SWITCH ADJUSTED WITH FITTINGS
BMF-54 to 96
720290-000253
Timers (Level I panel only)
AB-ON DELAY 0.05S-60HR
BMF-54 to 96
720211-000029
AB-ONE SHOT PULSE CONTROLLED .15-
3M
BMF-54 to 96
720211-000030
Upper Internal
INT-UPPER 4"PVC (BMF54)
BMF-54
700190-004862
INT-UPPER 4"PVC (BMF60)
BMF-60
700190-004863
INT-UPPER 4"PVC (BMF66)
BMF-66
700190-004864
INT-UPPER 6"PVC (BMF72)
BMF-72
700190-004865
INT-UPPER 6"PVC (BMF78)
BMF-78
700190-004866
INT-UPPER 6"PVC (BMF84)
BMF-84
700190-004867
INT-UPPER 6"PVC (BMF90)
BMF-90
700190-004868
INT-UPPER 8"PVC (BMF96)
BMF-96
700190-004869
Lower Internal
LOWER 4"PVC W/1" LAT(BMF54)
BMF-54
700190-004846
LOWER 4"PVC W/1" LAT(BMF60)
BMF-60
700190-004847
LOWER 4"PVC W/1" LAT(BMF66)
BMF-66
700190-004848
LOWER 6"PVC W/1.5" LAT(BMF72)
BMF-72
700190-004849
LOWER 6"PVC W/1.5" LAT(BMF78)
BMF-78
700190-004850
LOWER 6"PVC W/1.5" LAT(BMF84)
BMF-84
700190-004851
LOWER 6"PVC W/1.5" LAT(BMF90)
BMF-90
700190-004852
LOWER 8"PVC W/1.5" LAT(BMF96)
BMF-96
700190-004853
Image 1. Upper Internal Image 2. Lower Internal

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14!
TABLE 6 - BMF Replacement Parts Continued
Description
Filter Model
Part number
Actuator (Electric)
DOUBLE ACTING ELEC. - BRAY, S70-020
BMF-54 to 66
720701-000031
DOUBLE ACTING ELEC. - BRAY, S70-050
BMF-72 to 90
720701-000002
DOUBLE ACTING ELEC. - BRAY, S70-065
BMF-96
720701-000018
Adaptor Key (used to connect actuator to linkage assembly)
ADAPTER, KEY-E2-DD-S93-BRAY
BMF-72 to 90
720701-000011
ADAPTER, KEY-DD-S93-255 - BRAY
BMF-96
720701-000010
Actuator (Pneumatic)
SPRING RET PNEU. ACT - BRAY, S93-160
BMF-54 to 66
720701-000025
SPRING RET PNEU. ACT - BRAY, S93-210-5
BMF-72 to 90
720701-000027
SPRING RET PNEU. ACT - BRAY, S93-255-4
BMF-96
720701-000028
Adaptor Key (used to connect actuator to linkage assembly)
ADAPTER, KEY-E2-DD-S93-BRAY
BMF-72 to 90
720701-000011
ADAPTER, KEY-DD-S93-255 - BRAY
BMF-96
720701-000010
Linkage Assembly (does not include valves, actuator or adaptor key where required)
LINKAGE ASSY BMF, 4" VALVES
BMF-54 to 66
700106-000149
LINKAGE ASSY BMF, 6" VALVES
BMF-72 to 90
700106-000150
LINKAGE ASSY BMF, 8" VALVES
BMF-96
700106-000151
Valves (4 required per filter)
BUTTERFLY VALVE - 4" BRAY LUG
BMF-54 to 66
730105-000454
BUTTERFLY VALVE - 6" BRAY
BMF-72 to 90
730105-000460
BUTTERFLY VALVE - 8" BRAY
BMF-96
730105-000464
Image 3. Actuator, valve and linkage
ACTUATOR
BUTTERFLY VALVE
LINKAGE

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Rev:!10.2017! ! BMF!Pre-Engineered!Skid!IOM!!
15!
TABLE 7 - Troubleshooting
Issue
Signs of issue
Actions
Increasing
frequency of
backwash cycle
1. Backwash flow or duration
is not adequate to flush
filter tanks of all
contaminants
2. Insufficient sand volume
3. Increased concentration of
contaminants in water
supply
1. Adjust backwash flow or duration
2. Add media sand to achieve proper volume
3. Adjust backwash frequency or reduce
pressure differential setting to achieve more
frequent backwash cycles
Automatic
backwash
fails to cycle
1. Controller power may be off
or circuit breaker tripped
2. Improper setting of
differential switch
3. Solenoid malfunctioning
4. Loss of sufficient pressure
to actuate valve(s)
1. Be sure wiring is connected correctly. Turn on
power. Controller may be faulty and need
replacement.
2. Adjust as necessary
3. Check connections, clean ports and check
for the sound of the solenoid actuating.
Replace solenoid if necessary.
4. Check air regulator for proper adjustment.
Check air lines for leaks.
Media sand appears
downstream
1. Incorrect media sand (i.e.
too fine and too small)
2. Broken, damaged, or
missing lateral
1. Replace media with proper sized media
2. Repair or replace laterals of the underdrain
Backwash valve
leaks
1. Obstruction in the valve
seat
2. Rubber seating is worn or
damaged
3. Actuator Diaphragm
damaged
4. Linkage out of adjustment
1. Remove the obstruction
2. Replace valve
3. Replace diaphragm
4. Adjust linkage
Water hammer
1. Air in tanks
2. Long backwash line causing
vacuum
1. Bleed off trapped air in system. Air vent on
system may be required.
2. Install vacuum breaker on backwash line.
Pump motor runs
hot
1. Motor located in direct
sunlight
2. Poor ventilation
3. Low voltage
1. Cover motor with some type of sun shade if
possible
2. All motors require air movement for cooling.
Make sure that motor has a fresh source of air
for cooling
3. Check voltage with meter

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16!
Pump will not prime
(standard, not self-
priming)
1. Suction line is not flooded
with water
2. Debris in basket strainer
3. Air leaks
4. Pump rotating wrong
direction
1. Check and clean out pump suction pre-strainer
as required
2. Check and clean pump pre-strainer as required
3. Check and tighten all connections as required.
4. Check pump rotation against motor rotation
arrow and rewire if necessary for proper
rotation
System “Trips”
when running and
shuts down
1. Overload setting is too low
2. Supply voltage is incorrect
3. System flow is too high
4. Loose wire
1. Check overload setting in control panel.
Overload setting should be just above full load
amp value on motor nameplate.
2. Check incoming supply voltage with STS
system power requirements located on control
panel door (outside and inside)
3. Install valve on system discharge to control
flow
4. Check all wires for loose connections

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17!
PUMP CURVES

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18!

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19!

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20!