amiad TAF-750 Manual

AMIAD Water Systems Ltd.
3" TAF-750 FILTERS
Serial number:
Order number:
Catalog number:
Filtration degree:
Tested by:
Installation, Operation and
Maintenance Instructions
Ref. 910101-000116 /12.2018

3” TAF 750 12.2018 / 910101-000116 Page 2 of 17
AMIAD Water Systems Ltd.
3” TAF-750 FILTERS
Installation, Operation and Maintenance Instructions
Disclaimer:
Copyright © 2018 Amiad Water Systems Ltd. All rights reserved.
The contents of this document, including without limitation all information and materials, images, illustrations, data, drawings, names and any other
such materials that appear in this document are the sole property of Amiad Water Systems Ltd., including any intellectual property rights, whether
registered or not, and all know-how contained or embodied therein. Amiad may alter, remove or change the Content without any further notice. You
may not reproduce, copy, modify, create derivative works from, sell or participate in any sale of, or exploit in any way, in whole or in part, any of this
document or its content.
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.If you received this file
in error, please notify Amiad immediately at [e-mail].
This document does not replace any certified drawing, procedure or information provided by Amiad in reference to a specific customer, site or
project.
Amiad assumes that all users understand risks involved within this file and/or its attached materials.This document is given in good faith and is not
intended to impose any obligation to Amiad. While every effort has been made to ensure the information in this manual is accurate and complete, we
would appreciate if you can bring any errors or omissions to the knowledge of Amiad or consult Amiad experts or its authorized representatives if you
have any questions.
Amiad Water Systems Ltd. D.N. Galil Elyon 1, 1233500, Israel Tel: [phone] | Fax: [phone] Email: inf[email protected]

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TABLE OF CONTENTS
TABLE OF CONTENTS........................................................................................................................................................ 3
TECHNICAL SPECIFICATIONS............................................................................................................................................. 4
GENERAL ................................................................................................................................................................................. 4
FLUSHING DATA ........................................................................................................................................................................ 4
CONTROL AND ELECTRICITY..........................................................................................................................................................4
CONSTRUCTION MATERIALS......................................................................................................................................................... 4
STANDARD FILTRATION DEGREES...................................................................................................................................................4
SAFETY INSTRUCTIONS .................................................................................................................................................... 5
GENERAL ................................................................................................................................................................................. 5
INSTALLATION........................................................................................................................................................................... 5
OPERATION,CONTROL AND MAINTENANCE ...................................................................................................................................5
USE OF LIFTING EQUIPMENT........................................................................................................................................................ 5
DIMENSIONAL DRAWINGS............................................................................................................................................... 6
DESCRIPTION OF FILTER OPERATION ............................................................................................................................... 7
FILTERING PROCESS.................................................................................................................................................................... 7
SELF-CLEANING PROCESS............................................................................................................................................................. 7
INSTALLATION ................................................................................................................................................................. 8
DESIGN RECOMMENDATIONS.......................................................................................................................................................8
INSTALLATION INSTRUCTIONS....................................................................................................................................................... 8
START- UP AND FIRST OPERATION................................................................................................................................... 9
MAINTENANCE ...............................................................................................................................................................10
CHECKING THE FILTER............................................................................................................................................................... 10
CHECKING THE PD SWITCH CONNECTORS .....................................................................................................................................10
WINTERIZATION......................................................................................................................................................................10
LEAKS....................................................................................................................................................................................10
PARTS SCHEDULE - 3" TAF-750 FILTER SECTION 1............................................................................................................11
PARTS DRAWING - 3" TAF-750 FILTER SECTION 1............................................................................................................13
PARTS SCHEDULE & DRAWING 3" TAF-750 FILTER SECTION 2 .........................................................................................14
CONTROL DRAWING .......................................................................................................................................................15
AMIAD LIMITED WARRANTY...........................................................................................................................................16
With any inquiry please quote Filter Serial Number, located on the filter housing.

3” TAF 750 12.2018 / 910101-000116 Page 4 of 17
TECHNICAL SPECIFICATIONS
General
3"
Maximum flow rate
50m3/h; 220USgpm
Consult manufacturer for optimum flow depending on
filtration degree & water quality.
Min. working pressure
1.5 bar; 22psi
Or lower if pressure is increased for flushing.
Max. working pressure
8 bar; 120 psi
Filter area
700cm2; 110in2
Inlet/Outlet diameter
80mm; 3"
Threads: BSP or NPT
Flanges: Standard per request
Max. working temperature
600C; 1400F
Weight
13.0kg; 28.7lb
Flushing data
Exhaust valve
40mm; 1 1/2"
Flushing cycle time
16 seconds
Wasted water per cycle
25 liter; 6.6USgallon
Minimum flow for flushing
5.7m3/h; 25USgpm
at 1.5 bar; 22 psi
Flushing criteria
Differential pressure of 0.5 bar; 7psi, time interval and manual operation
Control and electricity
Rated operation voltage
110/220 VAC - Single phase
Electric motor
15 Watt
50 / 60 Hz, Gear output 48 / 58 R.P.M.
Current consumption
0.18 A
Control voltage
24 VAC
Construction materials
Filter housing and lid
NYLON
Screens
St.St. 316 Weave Wire screen with Polypropylene construction
Cleaning mechanism
PP, Delrin
Exhaust valve
Plastic, Natural rubber
Seals
NBR
Control
Brass, Stainless steel, PE, PP
Standard filtration degrees
Stainless steel screen
micron
500
300
200
130
100
80
50
20
10
mm
0.5
0.3
0.2
0.13
0.1
0.08
0.05
0.02
0.01

3” TAF 750 12.2018 / 910101-000116 Page 5 of 17
SAFETY INSTRUCTIONS
General
1. Prior to installation or any treatment given to the filter, read carefully the installation and operation instructions.
2. While maintaining the filter all standard safety instructions should be observed in order to avoid danger to the workers, the
public or to property in the vicinity.
3. Please note, the filters enter into a flushing mode automatically, without prior warning.
4. No changes or modification to the equipment are permitted without a written notification given by the manufacturer or by its
representative, on the manufacturer behalf.
Installation
1. Install the filter according to the installation instructions detailed in this manual.
2. Make sure to leave enough clearance so as to enable easy access for future treatments and safe maintenance operations.
3. Electric wiring should be performed by an authorized electrician only; using standardized and approved components.
4. Install main power disconnect cut-off switch close to the control panel.
5. If the control panel is installed in a location where there is no eye contact with the filter, a power disconnect cut-off switch
should be installed near each filter unit.
6. Install the filter so as to avoid water splashing directly on the electrical components or on the control panel.
7. Additional safety devices should be installed on hot water applications to avoid skin burn danger.
Operation, Control and Maintenance
1. Disconnect the filter from power supply before maintenance or treatment.
2. Loosening or unscrewing bolts should be done only after the pressure in the filter had been released.
3. Avoid splashing and water leaking so as to minimize slipping, electrocution or damage to the equipment caused by moisture.
4. Always open and close valves slowly and gradually.
5. Remove grease and fat material residues in order to avoid slipping.
6. After treatment has been completed, re-assemble the protection covers of the drive mechanism.
7. Manual cleaning of filter element using high water pressure or steam should be performed in accordance with the cleaning
system instructions and without endangering the operator or his vicinity.
8. Manual cleaning of filter element using acid or other chemical agents should be performed in accordance with the relevant
material safety instructions and without endangering the operator or his vicinity.
Use of Lifting Equipment
1. While using lifting equipment, make sure that the filter or the lifted part is chained securely and in a safe manner.
2. Do not leave lifted equipment hanging if not necessary. Avoid working below lifted equipment.
3. Wear a safety helmet while using lifting equipment.

3” TAF 750 12.2018 / 910101-000116 Page 6 of 17
DIMENSIONAL DRAWINGS
* Approx. Required Height For Maintenance
N1 N2
N3
41.55
1055 *(1100/ 43.31")
INLET OUTLET
DRAIN
11.50
292
8.87
225
13.48
342
3.55
90
25.93
659

3” TAF 750 12.2018 / 910101-000116 Page 7 of 17
DESCRIPTION OF FILTER OPERATION
The "TAF" is a sophisticated yet easy-to-operate automatic electric filter, with a self-cleaning mechanism driven by an electric motor.
The filter is designed to work with various types of screens in filtration degrees from 500 to 10 micron.
Filtering process
The water enters through the inlet pipe into the screen area and flows through the screen from inside out. The "filtration cake" is
accumulated on the screen surface and causes head loss to develop.
Self-cleaning process
The TAF will start the self-cleaning process either when the pressure differential across the screen reaches a pre-set value or after a
predetermined lapse of time.
The fine screen filter element is cleaned by the suction scanner whose nozzles spiral across the inner surface of the screen. The
filtration cake is "vacuumed" from the screen and expelled out the exhaust valve.
The scanner's spiral motion is achieved by a drive unit which rotates a bi-directional continuous worm shaft.
The exhaust valve is activated for the duration of the cleaning cycle by a 3-way solenoid. Filtered water continues to flow
downstream during the flush cycle, which takes approximately 16 seconds.

3” TAF 750 12.2018 / 910101-000116 Page 8 of 17
INSTALLATION
Design recommendations
1. The filter requires 5.7m3/h (25USgpm) for flushing, in addition to the working flow rate at a minimum pressure of 1.5 bar (22 psi).
In the event that the system cannot provide the flushing flow in addition to the working flow, at the minimum required
pressure, a hydraulic valve should be installed downstream of the filter. This valve will be closed during the flushing process in
order to ensure sufficient cleaning.
2. Do not allow water to flow in opposite direction. In case that there is a chance of back flow a non-return check valve should be
installed downstream of the filter.
Installation instructions
1. Install a manual valve upstream of the filter in order to enable convenient maintenance.
2. The diameter of the inlet pipe must not be smaller than that of the filter inlet.
3. Install the filter in a way that enables convenient approach and enough space to dismantle the filter for maintenance purposes.
4. It is recommended to install the filter horizontally, especially if the water contains sand.
5. Ensure the direction of flow is according to the arrows marked on the filter housing.
6. The exhaust valve can be facing downwards or sideways. Connect a minimum of 1.5" (40 mm) pipe to the exhaust valve using a
detachable connector or a flexible pipe. The exhaust pipe should be designed so that it creates minimal resistance to the flow
of 5.7m3/h (25USgpm).
7. If the system is designed to operate with a working pressure higher than 6 bar (85 psi), it is recommended that a manual valve
will be installed on the exhaust pipe, in order to enable regulation of the flushing flow rate.

3” TAF 750 12.2018 / 910101-000116 Page 9 of 17
START- UP AND FIRST OPERATION
1. Set the controller to 16 seconds flushing time and 2-4 hour intervals.
2. Operate a "dry" flushing cycle. Verify proper operation of the controller, the motor and the solenoid valve.
3. Open the inlet valve to the filter, while the outlet valve remains closed or with an open by-pass valve (This will keep the flow in
the filter at a minimum), and operate a flushing cycle by pressing the push-button on the controller panel.
4. Make sure the exhaust valve opens and all stages of the flushing cycle are carried out. Attend to leakage, if any.
If necessary, change the time setting to ensure complete up and down motion of the suction scanner.
5. Gradually open the outlet valve and/or close the by-pass valve. Operate the filter at the designed hydraulic conditions.

3” TAF 750 12.2018 / 910101-000116 Page 10 of 17
MAINTENANCE
NOTE: Depressurize the filter before maintenance (Close inlet and then outlet valves).
Checking the filter
1. Unscrew the filter cover.
2. Extract the screen and clean if necessary. Cleaning is performed by hosing the screen from outside-in, and/or
with a nylon brush.
3. Check the Screen O-ring and apply grease, if necessary.
4. Replace the screen.
5. Return the cover and twist to tighten.
Checking the PD switch connectors
Check the L-Connectors to the PD Switch to make sure that there are no obstructions.
Winterization
Filter operations should be suspended in climates where the filter is exposed to freezing temperatures.
1. Check that the outlet valve is closed and perform two manual rinses.
2. Close the inlet valve to the filter and release the pressure.
3. Remove all drain lines from the valves, drain, and reconnect.
Leaks
In case of a leak contact Amiad technical support