amiad AMF-36K User manual

Amiad Water Systems
AMF-36K Micro-fiber Filter
With Graphical HMI
User Guide
Serial number:
_______________
Order number:
_______________
Catalog number:
_______________
Filtration degree:
_______________
Tested by:
_______________
Installation and Operation
Instructions
Original Instructions - Ref. 910101-000592 08.2013

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Amiad Water Systems
AMF-36K Micro-fiber Filter With Graphical HMI User Guide
This manual is the operation manual of Amiad’s AMF 36K filter; it describes the installation and the commissioning
processes for a single filter installation and specifies the end-user operation procedures.
For broadening the end-user’s knowledge a general description of Amiad’s micro-fiber filtration technology is also
provided.
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 nay action in reliance to this document, unless permitted by Amiad.
None of the procedures provided on 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. (reuve[email protected])
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
1. Introduction & How to use this manual......................................................................................... Page 4
1.1 Using this manual
1.2 Safety instructions
1.2.1 General
1.2.2 Installation
1.2.3 Operation, Control and Maintenance
1.2.4 Use of Lifting Equipment
1.2.5 Notes
1.3 General description of the micro-fiber filtration technology
1.3.1 Filter media
1.3.2 Filtration process
1.3.3 The cleaning sequence
2. Installation ................................................................................................................................... Page 13
2.1 Pre-installation requirements
2.1.1 Floor area and surface
2.1.2 Power supply
2.1.3 Water supply for filter flushing
2.1.4 Drainage system
2.1.5 Compressed air supply
2.1.6 Filter tune-up tool
2.2 The Installation Process
2.2.1 Positioning the filter
2.2.2 Pipeline connections
2.2.3 Post shipment inspection
2.2.4 Power Supply–Electricity and Pneumatics
3. Description of the control panel .................................................................................................. Page 29
3.1 Introduction
3.2 Components mounted on the control panel door
3.3 Internal components of the control panel
3.4 Basic operation of the PLC
4. Start-up and First Operation ........................................................................................................ Page 54
4.1 Dry stage –Connections verification
4.2 Wet stage A. –Initial flushing cycle
4.3 Wet stage B. –First filtration cycle
5. Technical specifications ............................................................................................................... Page 62
5.1 Standard AMF 36K Specifications
5.2 Solenoids’ drawing
5.3 Control cabinet drawings

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1. Introduction & How to use this manual
1.1 Using this manual
This manual describes the end-user operation procedures of Amiad’s AMF 36K filter. For broadening the user’s general
knowledge a general description of Amiad’s micro-fiber filtration technology and some basic information on installation is
also provided.
This manual does not replace the Technicians’ Installation, Service and Maintenance Manuals and it should not be used
for any task other than the regular operation of the filter.
Before operating the filter please read this manual carefully. Make sure that:
You are familiar with the safety instructions (Chapter 1.2)
You understand the basics of the Micro-fiber filtration technology (Chapter 1.3)
You know how to use the control panel (Chapter 3)
1.2 Safety instructions
General Safety Instructions
Amiad filtration products always operate as components in a larger system. It is essential for the system designers,
installers and operators to comply with all the relevant safety standards.
Prior to installation, operation, maintenance or any other type of action carried out on the filter, read carefully the
safety, installation and operation instructions.
During installation, operation or maintenance of the filter all conventional safety instructions should be observed in
order to avoid danger to the workers, the public or to property in the vicinity.
Please note: The filter enters into a flushing mode automatically, without prior warning.
No change or modification to the equipment is permitted without a written notification given in advance by the
manufacturer or by its representative, on the manufacturer’s behalf.
Always observe standard safety instructions and good engineering practices whilst working in the filter’s vicinity.
Use the filter only for its intended use as designed by Amiad, any misuse of the filter may lead to undesired damage
and may affect your warranty coverage. Please consult with Amiad prior to any non-regular use of this equipment.
Installation
General
Install the filter according to the detailed Installation Instructions provided with the filter by the manufacturer and
according to the description given in this manual.
Make sure to leave enough clearance so as to enable easy access for future treatments and safe maintenance
operations.
The user should arrange suitable lighting at the area of the filter to enable good visibility and safe maintenance.
The user should arrange suitable platforms, ladders and safety barriers to enable easy and safe access to the filter
without climbing on pipes and other equipment. The user should verify that any platform, barrier, ladder or other
such equipment is built, installed and used in accordance with the relevant local authorized standards.
Check and re-tighten all bolts during commissioning and after the first week of operation.

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Use only appropriate standard tools and equipment operated by qualified operators when installing, operating and
maintaining the filter.
When installation is required in hazardous environment sites, underground or high above ground, make sure that
the site design and the auxiliary equipment are appropriate and that installation procedures are carried out in
accordance with the relevant standards and regulations.
Ensure walking areas about the installation are slip free when wet.
Shipment and transporting
Shipping and transporting the filter must be done in a safe and stable manner and in accordance with the relevant
standards and regulations.
For shipping, lifting and positioning the filter, use only approved lifting equipment and authorized employees and
contractors.
Electricity
Electric wiring should be performed by an authorized electrician only, using standardized and approved components.
Install a lockable main power cut-off switch close to the control panel.
If due to site constraints, the control panel is installed without a clear line-of sight of the filter, an additional lockable
power disconnect cut-off switch should be installed near each filter unit.
Installation of the filter should be performed so as to avoid direct water splashing on the electrical components or
on the control panel.
Pneumatics
Install a lockable main cut-off switch, featured with a pressure release mechanism, on the compressed air supply
line close to the control panel.
If the control panel is installed far away and there is no eye contact with the filter, a lockable compressed air cut-off
switch, featured with a pressure release mechanism, should be installed near each filter unit.
The user should make sure that the compressed air supplied to the filter never exceeds the maximum designated
pressure for this filter. An air-pressure reduction valve should be installed on the compressed air supply line
upstream of the filter’s pneumatic inlet port.
Hydraulics
Extra safety devices should be installed on hot water applications to avoid skin burn danger.
The user should install a manual Water Cut-off Valve next to the filter’s inlet port.
In cases where the downstream piping network downstream of the filter is pressurized an additional manual Water
Cut-off Valve should be installed next to the filter outlet port.
The user should make sure that the system includes a Pressure Release / Drainage Valve to enable release of
residual pressure prior to any maintenance procedure performed on the filter.
The user should make sure that the filter is never exposed to water pressure exceeding the maximum designated
pressure for this filter, if needed a Pressure Reduction Valve should be installed upstream of the filter’s water inlet
port.
Please note that the maximum working pressure indicated at the filter’s specifications table includes the pressure
caused by fluid hammer and pressure surge effects.

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Civil Engineering
Make sure that the filter installation is done by Amiad qualified technicians.
Make sure that any civil engineering work at the installation site such as construction, lifting, welding, etc. is done by
qualified workers / technicians / contractors and in accordance with the relevant local standards.
While using lifting equipment, make sure that the filter or the lifted part is chained securely and in
a safe manner.
Do not leave lifted equipment if there is no necessity. Avoid working below lifted equipment.
Wear a safety helmet while using lifting equipment.
Make sure that the flooring is sloped for drainage and to avoid accumulation of liquids.
Commissioning
Read carefully the Commissioning and the First Start-up Operation instructions prior to any attempt to operate the
filter.
In order to achieve maximum performance and smooth operation of the filter it is crucial to perform the Startup and
First Operation procedures exactly as described in this manual.
Commissioning the filter should be done by an authorized Amiad technician, do not attempt to commission the filter
unaccompanied since this may lead to undesired damage and may affect your warranty coverage.
Operation and Control
Do not operate the filter before reading carefully and being familiar with its operation instructions.
Observe the safety stickers on the filter and never perform any operation contradicting the instructions given.
Never operate or use the filter for purposes other than its original design and operational envelope.
Maintenance
Before any maintenance or non-regular operation please read the following:
Servicing the filter should be done only by technicians authorized by Amiad.
Disconnect the filter from the power supply and lock the Main Power Switch.
Disconnect the compressed air supply, release the residual pressure and lock the Pneumatics Main Valve.
Disconnect the filter from the water system by closing and securing the Manual Inlet Valve. In cases where the
downstream piping network is pressurized, close and secure the Manual Outlet Valve also.
Release the residual water pressure by opening the Pressure Release / Drainage Valve.
Empty the filter by opening the Drainage Valve.
In hot water systems wait till the filter components cool off to a safe temperature.
Place warning signs around the work area as required by the local standards and procedures.
Inspect the filter’s safety stickers and replace any damaged or faded sticker.
Mechanical
When working on the filter use only appropriate standard tools.
Always open and close valves slowly and gradually.
Remove grease and fat material residues in order to avoid slipping.

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Before disconnecting the filter from the water supply, electricity and pneumatics and before releasing the filter’s
residual pressure do NOT:
oloosen or unscrew bolts
oremove any protection cover
oopen any service port flange
Avoid splashing and water leakage so as to minimize slippage, electrification or damage to the equipment, caused by
moisture.
While using lifting equipment, make sure that the filter or the lifted part is chained securely and in
a safe manner.
Do not leave lifted equipment if there is no necessity. Avoid working below lifted equipment.
Wear a safety helmet, goggles, gloves, and any other personal safety equipment required by the local standards and
regulations.
Human entry into a filter must be done in accordance with the relevant local safety instructions, standards and
regulations for working in hazardous environment.
Manual cleaning of filter media using high water pressure or steam should be performed in accordance with the
cleaning system instructions, the local standards and regulations and without endangering the operator or the
vicinity
Manual cleaning of filter element using acid or other chemical agents should be performed in accordance with the
relevant material safety instructions, the local standards and regulations and without endangering the operator or
his vicinity.
Before returning to regular operation
Re-assemble any protection covers or protection mechanisms removed during service or maintenance operations.
Make sure that all the tools, ladders, lifting devices, etc. used during the maintenance procedures are taken away
from the filter area and stored
In order to return the filter to regular operation, follow the First Start-up Operation instructions as detailed in your
user manual.
For filters used in potable water systems it is required to disinfect the filter according to the local water authority
standards and regulations before putting it back to service.

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1.3 General description of the micro-fiber filtration technology
Textile fibers are widely used for fine filtration in the disposable cartridge filter market. Amiad Filtration Systems
developed an innovative self-cleaning micro-fiber filtration technology and implemented it on a wide range of automatic
filters. For the end-user general knowledge the following paragraph describes the basics of this technology.
Please note:
Each model of Amiad’s micro-fiber filters has a different size, flow-rate and number of cartridges, therefore the
drawings and pictures used in this description do not necessarily reflect the actual layout and components of your
actual filter, they are provided for explaining the technology only.
1.3.1 Filter Media
Amiad AMF filter is based on Amiad’s automated micro-fiber technology. The basic component of this filtration
technology is the Cassette which is a filter media consists of a grooved rigid plastic plate over which multi layer textile
threads have been wound (Fig1). The thread type and tension together with the number of layers define the filtration
degree from twenty down to two microns.
Figure 1
35 cassettes connected to a joined-in collector pipe unit form a package. 26 packages attached to each other form a
cartridge (Fig2) which is installed in the filter housing (Fig3).
Figure 2

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Figure 3
1.3.2 Filtration Process
The contaminated liquid flows from the inlet control valve, through the threads, into the grooves and through the nipples
to the collector pipe, flowing to the clean liquid chamber and, through the outlet control valve, to the customer’s system
(Fig4+5).
Figure 4 Figure 5
Larger dirt particles are stopped on the surface of the multiple layers of thread (Fig6) and form a filter cake. Finer particles
that penetrate the surface are trapped deep inside the thread layers (Fig7). As dirt is stopped the filter differential pressure
gradually increases.
Figure 6 Figure 7

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1.3.3 The cleaning sequence
The control system activates the self cleaning sequence at a preset pressure differential level or by a preset timer, which
ever comes first (Fig8).
The cleaning sequence starts with the control unit starting the flushing pump (Fig9), which boosts into the system highly
pressurized clean water. The inlet and outlet valves are than closed isolating the filter from the main line. A few seconds
later, the drain valve opens, emptying the filter (Fig10).
Figure 8 Figure 9
Figure 10
The highly pressurized water enters the filter through the flushing control valve, into a shuttle pipe fitted with a movable
spray unit (Fig11). The spray unit (Fig12) moves back & forth along the entire length of one cartridge row, pushed by a piston
driven in both directions by boosted water (Fig13).
Figure 11 Figure 12

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Figure 13
Each spray nozzle creates multiple jet streams; these jets pass through the thread layers of the cassette, hit the plastic
wall and are forced backwards. This creates a powerful spot back flush, which carries with it the trapped particles and the
filter cake out of the cassettes thread layers and through the open drain control valve to the gravity drain system (Fig14,
15).
Figure 14 Figure 15
After each row of cassettes is cleaned (Fig16) the nozzle unit slightly changes position, the control unit commands the
index assembly to turn the cartridge until the next row is positioned against the nozzle unit (Fig17), ready to start cleaning
the new row and so forth (Fig18,19).
Figure 16 Figure 17
Figure 18 Figure 19

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Once the cleaning of all the cassettes is completed, the flush and the drain control valves are closed (Fig20) and the inlet
and the "filter to waste" control valves are opened (Fig21).
Figure 20 Figure 21
Raw liquid enters the filter and fills it up and initial filtrate is passed through the "filter to waste" control valve (Fig22).
Figure 22
The "filter to waste" control valve closes (Fig23) and afterwards the outlet control valve opens. Finally the flushing pump is
turned off (Fig24).
Figure 23 Figure 24
The filter is now back on-line.
The cleaning cycle takes approximately 10 minutes.

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2. Installation
2.1 Pre-installation requirements
Amiad’s AMF 36K filter is used for various water filtration applications and therefore can be installed in different types of
installation sites; therefore prior to the actual installation of the filter it is important to make sure that the installation site
meets the following criteria and requirements:
2.1.1 Floor area and surface
The installation site area should be large enough to allow:
oAccess for performing regular maintenance procedures safely
oRemoval of filter components in case that disassembly of the filter is required
oInstallation of additional filter units if expansion of the filtration system is required
oInstallation of platforms and safety barriers to enable easy access to the filter without climbing on pipes
and other equipment
The installation site should be properly drained by providing sufficient floor gradient and preventing standing
water accumulation
The installation site should be properly lighted for good visibility and safe maintenance
2.1.2 Power supply
Rated operation voltage - 3 Phase, 220 - 480 V, 50 / 60 Hz. Please consult your Certified General Arrangement
Installation drawings for details
Power consumption –3 KW
Power connection to the pump:
In cases where the pump power supply is not pre connected by the factory, connect the pump to the control
panel by means of a cable of 4 x 2.5mm² for a distance of up to 10m. Consult Amiad for cable specifications for
distances longer than 10m. (In any case the user is responsible that this installation meets or exceeds the local
or the national electrical codes; this is a "high" voltage connection).
2.1.3 Water supply for filter flushing
For proper removal of the filter cake without causing damage to the filter media, it is mandatory for the filter flushing
process to use clean filtered water only. Therefore, the filter’s flushing pump should be connected to a filtered water
source capable of supporting a flow-rate of 6 M³/h (27 GPM).
In a single filter installation the flushing water source may be one of the following options:
In cases where the filter is installed upstream of any type of water storage facility such as reservoir, water tank
or water tower, a supply line can be installed between the clean water storage and the filter for feeding the
filter’s flushing pump with filtered water.
In cases where the filter is connected directly to the end-users’ pipeline, a designated flushing water tank
should be installed in the filter vicinity. This tank is connected to the downstream outlet of the filter and is
filled-up during the regular operation of the filter in order to serve as the flushing pump’s water source during
the flushing process. The minimal water storage in such tank should be –1 M³ (265 gallon)

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2.1.4 Drainage system
A gravity-flow drainage pipeline should be provided at the installation site.
It is mandatory that the diameter of the drainage pipeline will be at least at the same size of the filter’s original
drainage manifold.
The drainage pipeline should be opened to the atmosphere within the first 0.5 meter fall below the filter
housing bottom line.
No restriction is allowed on the drainage pipe.
Do not raise the drainage pipeline above the filter housing bottom line.
It is necessary to prevent vacuum buildup in the filter during the flushing cycles, therefore it is recommended
to install a 1.5” vent pipe on the drainage pipeline.
Make sure that the entire drainage system is flushed and clean before connecting it to the filter.
2.1.5 Compressed air supply
Dry and lubricated 6-7 BAR (90-105 PSI) standard compressed air supply is needed for the filter operation.
In case where compressed air supply is not available at the end-user’s site, a portable 8 bar / 50 liter
compressor should be installed near the filter
In cases where the user provides the compressed air supply, it is the user’s responsibility to install a quick
pressure release valve protecting the filter form higher than 8 bar excessive compressed air pressure.
2.1.6 Filter tune-up tool
In order to properly carryout the filter commissioning and the first start-up procedures, a clean and straight 4.5 meter
0.5” pipe (or rod) should be prepared at the installation site. This pipe is needed for pushing one of the filter pistons to its
start-up position during the commissioning process.
Note: - For any further information needed for proper designing of the installation site please contact Amiad’s
Engineering Applications Department.

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2.2 The Installation Process
2.2.1 Positioning the Filter
The filter should be positioned and connected according to its Certified Installation Arrangement Drawing. This drawing
specifies the layout of the filtration site as prepared by qualified engineers according to Amiad’s Application Engineering
Department specifications.
Please study your Certified Installation Arrangement Drawings and then position the filter and mount it to the floor area
according to the drawings, please take extra care and exercise the relevant safety instructions.
The following drawing (Fig25) is an example of such Installation Arrangement Drawing. It does not replace your certified
drawing and it is given here for broadening the end-use knowledge only.

Figure 25

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2.2.2 Pipeline connections
After the filter is positioned and secured to its designated location consult your Certified Installation Arrangement
Drawings and connect the filter to the pipeline network. In general the filter should be connected to the following points:
Upstream pipe –the entry point of unfiltered water to the filter
Downstream pipe –the exit point of clean water from the filter and the connection point to the end-user’s
system
Drainage system –a manifold exit point for flushed filter cake and “filter to waste” water
Flushing pump supply –the entry point of clean filtered water to the flushing pump
It is necessary to prevent static backpressure or reverse flow through the filter and therefore it is recommended to install
a non-return valve at the outlet of the filter.
It is necessary to protect the filter from excessive line water pressure, therefore the user is required to install a quick
pressure release valve to ensure that the filter is not exposed to higher than 10 bar water pressure.
Note - Make sure that all pipe connections are bolted and secured properly according to the standards and the good
water works practices. Make sure that the upstream and the downstream valves are kept closed at this stage.
2.2.3 Post shipment inspection
This task should be done by a competent technician according to the following instructions, do not attempt to
commission the filter unaccompanied.
Before commissioning the filter it is necessary to inspect that no damage had occurred during the shipment and the
installation. Please perform the following procedures:
Filter housing inspection for foreign objects and broken components:
1. Disconnect the High Pressure pipe at the far end of the Piston House Assembly.

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2. Disconnect the Proximity Switches SW1 and SW2 from the Piston House Assembly by unscrewing the sensors
from their Mounting block.
Important note: Make sure that the Mounting Blocks stay at their current position! Any movement of a block
will affect the piston’s calibration and will cause damage to the filter. Only the sensors should be removed!!!
SW1
SW2
Don’t Move this Block
Do not move this Block!
Remove this sensor
only

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3. Unscrew the filter’s Intermediate Cover bolts and open the Cover by gently pulling it out together with the Piston
Hosing.