YAMIT AF-9800N Series User manual

AF-9800N Series Electric Hydraulic
Self-Cleaning Screen Filter
SERVICE & MAINTENANCE MANUAL
ENGLISH
YAMIT Filtration & Water Treatment Ltd. PO BOX 232 Moshav Tnuvot , 4283000 Israel
Tel: [phone] / e-mail: [email protected] / www.yamit-f.com
18-Oct-20

Table of Contents
Subject Page No.
1.
Introduction
3
2.
Safety Instruction
3
3.
Description & Operation
4
4.
Technical
Data
6
5.
Initial Installation & Operation
8
6.
Maintenance &
Periodical Checks
10
6.1
Electric
Motor Removal and Installation
10
6.2
Solenoid Removal and Installation
12
6.3
Differential Pressure Indicator Removal and Installation
14
6.4
Hydraulic Piston Assembly Removal and Installation
16
6.5
Coarse Screen Removal and Installation
18
6.6
Fine Screen Assembly Removal and Installation
20
6.7
Dirt Collector Removal and Installation
22
6.8
Periodical Checks
24
7
IPB
26
8
Appendix
29
9.1
ELI 02 Controller & Electrical Wiring
25
9.2
Control Loops Schematic Drawing
- AC Baccara
Solenoid
35
9.3
Control Loops Schematic Drawing
- AC Galsol Solenoid
36
9.
International Warranty
37
ALL RIGHTS RESERVED, THIS MANUAL AND THE INFORMATION CONTAINED ARE NOT
ALLOWED TO BE USED WITHOUT WRITTEN PERMISSION FROM YAMIT Filtration &
Water Treatment Ltd.
AF9800N

3
1. Introduction
General
YAMIT Filtration & Water Treatment Ltd. (hereinafter YAMIT) congratulates you on
purchasing the new AF-9800 N SERIES self-cleaning filter. This filter now joins the
wide family of filters produced and supplied by YAMIT or agriculture, municipal water
and sewage systems, and all types of industrial applications. All products
manufactured by YAMIT are easy to install, use and service and don’t require special
skills to operate them.
For operation and maintenance of the filter please follow the instructions in this
manual.
2. Safety Instructions
1. It is necessary to use a noise protection device while the filter is in operation.
2. In the model with 12V DC power supply use the device which is provided by
YAMIT or equivalent (with certifications and power rating).
3. Verify that the control panel is grounded. Also verify that the AC power cord is
connected to the control panel through 3 x 6A-fuse protector.
4. Verify that the filter housing is grounded to the appropriate location.
5. Confirm AC power disconnection prior to service.
6. Confirm filter draining prior to service.
7. Take precautions while lifting, transporting or installing the filter.
8. Installation and operation of the filter should be performed so as to avoid direct
water splashing on the control unit.
9. Confirm that filter weight, when full, meets the support construction
requirements.
10. Prior to installation confirm line pressure matches filter’s operational pressure.
11. During installation, use standard flanges and connections only.
12. Check that all filter flanges bolts are properly secured.
13. Please note, the filter enters a flushing mode automatically, without prior
warning.
14. Use original parts only, while servicing the filter.
15. No changes or modifications to the equipment are allowed.
16. Do not perform any maintenance activities other than those given in this manual.
AF9800N

3. Description & Operation
Filter Assembly General Description (Figure 1)
The AF-9800NHydro electric self-cleaning screen filter enables high quality filtering
at filtering degrees of 10-3000 micron from different types of fluid sources such as
sewage, reservoirs, rivers, lakes, and wells.
The AF-9800N SERIES filter contains the following parts:
Figure 1: Filter Assembly
3
4
1. Inlet
2. Coarse screen
3. Fine screen
4. Flushing valve
5. Hydraulic piston
6. Flushing chamber
7. Dirt Collector
8. Suction nozzle
9. Electric motor
10. Outlet
AF9800N

5
Filter Operation General Description (Figure 1)
Filtration
Water enters the filter through the “Inlet” (1) and passes through the coarse screen
(2) that functions as a “first stop” for rough particles. Water then reaches the fine
screen (3), which further purifies the flow by separating smaller particles from the
water. As more water flows through, impurities build up on the fine screen. As
impurities on the screen accumulate, a pressure imbalance is built up between the
internal section of the fine screen (3) and its external section.
Cleaning Process
When the difference in pressure (ΔP) reaches the preset value on the differential
pressure indicator, Or when the preset time in the controller arrives, a series of
events is triggered while water continues to flow to the system units. The controller
transmits a signal for a 15 second flushing cycle. The solenoid opens the flushing
valve (4), and release the pressure from the hydraulic piston (5). Water flows outside
from the flushing valve (4). Pressure in the hydraulic chamber (6) and the dirt
collector (7) is significantly lowered resulting in a suction process via the suction
nozzles (8) to the dirt collector (7) and from there to the hydraulic chamber (6)
through the flushing valve (4) outside. The electric motor (9) simultaneously rotates
the dirt collector (7) around its axis. The pressure is released from the piston (5) and
the high pressure inside the filter causes linear movement of the dirt collector. The
combination of the linear movement and rotation efficiently cleans the entire internal
screen (3) surface.
At the end of the 15 second cycle the flushing valve (4) closes and the operation of
the electric motor (9) is stopped. The increased water pressure returns the hydraulic
piston (5) to its initial position. The filter is now ready for the next cycle, with clean
and filtered water flowing through the “Outlet” (10).
The 15 second flushing cycle resumes operation whenever the difference in pressure
reaches the preset pressure value set on the differential pressure indicator. Or when
the preset time in the controller is triggered on. If the pressure difference remains
unchanged after one cycle, another cycle will start after a delay of 10 seconds.
AF9800N

4. Technical Data
Standard Features
•Minimum operating pressure: 1.5 bar (21.8 psi)
•Maximum operating pressure: 10 bar (145 psi)
•Clean filter pressure loss: 0.1 (2 psi)
•Maximum water temperature: 65°C (149°F)
•Filtration range: 10-3000 micron
•Electric motor: 380V 3-phase 1/4 Hp 180watt
•Flush water consumption
(at minimum working pressure): 70 liters (18.5 gallons)
•Filter housing materials: carbon steel coated w/baked on epoxy
Measurements & Weight
6
4
L = Long R = Parallel X = Extra-long filter with extra-large filtration area
* Flow rate data is for high quality water at filtration grade of 120 microns.
** Flushing flow rate data is for minimum operational pressure (1 bars / 15 psi).
Model
In/Out
D
(inch)
D1
(inch)
H
(
mm) (
inch)
L
(mm) (inch)
L1
(
mm) (
inch)
L2
(
mm) (
inch)
Packing
Weight
(
kg) (lb
)
Packing Volume
L*W*H
(m) (ft)
AF9803NL
310
545
21.44
450
17.72
1227
48.29
1473
57.99
128
282
0.87x0.6x1.6
2.85x1.97x5.4
AF9804NL
410
545
21.44
900
35.43
1623
63.88
1873
73.72
153
337
0.77x0.6x2.0
2.53x1.97x6.5
AF9804NX
410
545
21.44
900
35.43
2019
79.47
2265
89.17
172
379
0.77x0.6x2.4
2.53x1.97x7.8
AF9806NL
612
580
22.81
900
35.43
1692
66.61
1938
76.32
165
364
0.77x0.6x2.4
2.53x1.97x7.8
AF9806NX
610
555
21.84
900
35.43
2089
82.22
2335
91.93
175
386
0.77x0.6x2.4
2.53x1.97x7.8
AF9808NL
812
580
22.81
900
35.43
74.09
89.68
83.8
99.39
205
452
0.87x0.63x2.6
2.85x1.97x8.5
AF9810NL
10 14
595
23.41
900
35.43
2282
89.82
2528
99.53
230
507
0.87x0.63x2.6
2.85x1.97x8.5
AF9800N

7
Flow Rate
Filtration Grade Conversion Table
Micron 10 25 30 40 50 80 100 120 150 200 300 400 500 800 1000 1500 2000 3000
Mesh 1500 650 550 400 300 200 150 120 100 80 55 40 30 20 15 10 85
Pressure Loss at 120 micron
7
Model
Int/Outlet
ØD
(mm) (in)
Max. Flow Rate
(m3/h) (gpm)
Screen area
(cm2) (in2)
Flushing
Flow rate
(m3/h) (
gpm
)
Flushing
Volume
(m³) (gal)
AF9803NL
75
3 50 220 3220 499 30 130 0.083
18.84
AF9804NL
100
4 80 440 5780 896 30 130 0.083
18.84
AF9804NX
100
4 100 440 8410 1304 30 130 0.083
18.84
AF9806NL
150
6 150 660 5780 896 30 130 0.083
18.84
AF9806NX
150
6 160 700 8410 1304 30 130 0.083
18.84
AF9808NL
200
8 300 1320 8410 1304 30 130 0.083
18.84
AF9810NL
250
10
400 1760 8410 1304 30 130 0.083
18.84
AF9800N

5. Initial Installation & Operation
General
The filter assembly is protectively packed with all parts assembled.
Installation
1. Take the filter assembly out of the wood platform.
2. Install the filter assembly to the inlet line and outlet line.
3. Connect a drainpipe to the hydraulic flushing valve outlet opening (at
least 63 mm or 2” diameter and no longer then 5m). Confirm that water
runs freely out of the drainpipe.
4. Position the control panel in such a way as to be protected against
humidity and solar radiation.
5. Connect the control panel to the power source.
6. Check that all connections are properly secured.
7. Check that all bolts and nuts on filter periphery are properly tightened
and secured.
Figure 2: Initial Filter Installation
8
5
AF9800N

Initial Operation
1. Gradually open the inlet valve (make sure that the outlet valve, if
installed, is open).
2. Check the filter assembly and its connections for leaks.
3. Perform a flushing cycle by disconnecting the low pressure tube from the
differential pressure indicator (closing of the electrical circuit) –re
connect it immediately as flushing start.
4. Verify that the hydraulic flushing valve closes after 10 seconds.
5. Verify that the hydraulic piston fully extends during back flush.
6. When the filter is clean, verify that the differential pressure between
inlet and outlet does not exceed 0.1 bar.
7. Check that the differential pressure is set to 7 psi or 0.5 bar in the
controller (see appendix no 1).
8. Perform an additional flushing cycle manually by pushing the manual
bottom (M on the screen display). (See Figure 3).
Figure 3: Control Unit
9
AF9800N

6. Maintenance & Periodical Checks
6.1 –Electric Motor Removal & Installation
1. Close the inlet and the outlet line valves.
2. Set the main switch at the control panel to "0" position.
3. Verify that filter is drained prior to service.
4. A qualified technician will carry out the electrical connections.
5. Disconnect the electric motor from the electrical power source. Prior to
removal, mark the electrical wiring connections (according to colors) on
the new motor.
6. Remove the screw in the rear part of the motor.
7. Remove the four nuts and washers attaching the motor assembly to the
filter assembly.
8. Carefully remove the old motor assembly. Verify existence of splint on the
motor axis groove.
9. Remove the splint out of the old motor axis groove.
10. Carefully slide the new motor assembly into the filter assembly.
11. Install the splint into the new motor axis groove.
12. Install the four nuts and washers attaching the motor assembly to the
filter assembly and the screw to the rear part of the motor.
13. Connect the electric motor to the electrical power source according to
the marking previously made in step 5.
14. Set the main switch at the control panel to "1" position.
15. Open the inlet and the outlet line valves.
16. Perform a flushing cycle by pressing the MANUAL FLUSH switch at the
control panel.
17. Verify that the motor is spinning clockwise and the hydraulic flushing
valves close after 15 seconds.
18. Check for leaks.
WARNING
Take precautions while operating the filter as the filter may enter a flushing
mode automatically, without prior warning.
10
6
AF9800N

11
Figure 4: Electric Motor Removal & Installation
AF9800N

12
6.2 - Solenoid Removal & Installation
The solenoid hydraulically controls the flushing valve's operation.
1. Set the main switch at the control panel to "0" position.
2. Close the inlet and outlet valves of the filter and verify that filter is drained prior
to service.
3. Disconnect the solenoid control tubes.
4. Remove the fittings from the damaged solenoid.
5. Remove the 4 screws attaching the electric connection box
6. Disconnect the electrical wiring from the connection box terminals.
7. Remove the nut from the solenoid lower section.
8. Pull the solenoid out of the control assembly.
9. Insert a new solenoid into the control assembly.
10. Install the nut on the solenoid lower section.
11. Install the fittings on the ports of the new solenoid.
12. Connect the solenoid control tubes.
13. Connect the electrical wiring to the connection box terminals.
14. Open the inlet and outlet valves of the filter
15. Set the main switch at the control panel to "1" position.
16. Perform a flushing cycle by disconnecting the low pressure tube from the
differential pressure indicator (closing of the electrical circuit) –re-connect it
immediately as flushing start.
17. Verify that the hydraulic flushing valve closes after 15 seconds.
18. Perform a flushing cycle by pressing the MANUAL FLUSH switch at the control
panel.
WARNING
Take precautions while operating the filter as the filter may enter a flushing
mode automatically, without prior warning.
AF9800N

13
Figure 5: Solenoid Removal & Installation
AF9800N

6.3 –Differential Pressure Indicator Removal &
Installation
The differential pressure indicator supplies data to the electronic control unit, which
controls the filter's self-cleaning process.
1. Set the main switch at the control panel to "0" position.
2. Close the inlet and outlet valves of the filter and verify that filter is drained prior
to service.
3. Disconnect the two control tubes from the differential pressure indicator.
4. Remove the 4 screws attaching the electric connection box.
5. Disconnect the electrical wiring from the electric terminal in the connection box.
6. Remove the two nuts located at the bottom of the electronic control unit
assembly and remove the screws.
7. Pull the differential pressure indicator out of the control assembly.
8. Insert a new differential pressure indicator into the control assembly.
9. Install the two screws and nuts at the bottom of the electronic control unit
assembly.
10. Connect the two control tubes to the differential pressure indicator [note that the
high pressure and the low pressure connected to the right fittings.
11. Connect the electrical wiring to terminals D and P on the electric terminal
connection box.
12. Set the main switch at the control panel to "1" position.
13. Perform a flushing cycle by disconnecting the low pressure tube from the
differential pressure indicator (closing of the electrical circuit) –re-connect it
immediately as flushing start.
14. Verify that the hydraulic flushing valve closes after 15 seconds.
15. Perform a flushing cycle by pressing the MANUAL FLUSH switch at the control
panel.
WARNING
Take precautions while operating the filter as the filter may enter a flushing
mode automatically, without prior warning.
14
AF9800N

Figure 6: Differential Pressure Indicator Removal & Installation
15
AF9800N

6.4 –Hydraulic Piston Assembly Removal & Installation
The hydraulic piston enables the linear movement of the dirt collector.
1. Set the main switch at the control panel to "0" position.
2. Close the inlet and the outlet line valves
3. Verify that the filter is drained prior to service.
4. Disconnect the control tube from the piston assembly’s upper section.
5. Spin and screw the brass base out of the filter body and carefully remove the
piston assembly.
6. Remove the seal from the current piston assembly, forward section.
7. Position the forward seal in the new piston assembly.
8. Lubricate the forward seal with silicon grease.
9. Carefully slide the new piston assembly into the filter housing.
10. Spin and screw the brass base into the filter body and tie it gently.
11. Connect the control tube to the piston assembly’s upper section.
12. Set the main switch at the control panel to "1" position.
13. Open the inlet and outlet line valves.
14. Check for leaks.
15. Perform a flushing cycle by pressing the MANUAL FLUSH switch at the control
panel.
16. Push the piston indicator (on the rear side of the piston) inside.
17. Verify that the piston travels its complete path and that the indicator pops up.
18. Verify that the hydraulic flushing valve closes after 15 seconds.
WARNING
Take precautions while operating the filter as the filter may enter a flushing
mode automatically, without prior warning.
16
AF9800N

17
Figure 7: Hydraulic Piston Assembly Removal & Installation
AF9800N

6.5 - Coarse Screen Removal & Installation
1. Close the inlet and the outlet line valves.
2. Set the main switch at the control panel to "0" position.
3. Verify that filter is drained prior to service.
4. Remove the nuts and washers attaching the cover to the filter housing.
5. Remove the cover with the motor assembly and the motor’s dirt collector axis
housing.
6. Remove the body seal from the cover groove.
7. Pull the old coarse screen out of the fine screen assembly
8. Slide the new coarse screen into the fine screen assembly.
9. Verify that the straight side of the body seal fits into the groove located in the
cover.
10. Put the cover into it’s place on the filter. (Take care that the motor’s dirt collector
axis housing is slide on the dirt collector axis).
11. Install the nuts and washers attaching the cover to the filter housing.
12. Set the main switch at the control panel to "1" position.
13. Open the inlet and outlet line valves.
14. Perform a flushing cycle by pressing the MANUAL FLUSH switch at the control
panel.
15. Check for leaks.
WARNING
Take precautions while operating the filter as the filter may enter a flushing
mode automatically, without prior warning.
18
AF9800N

19
Figure 8: Coarse Screen Removal & Installation
AF9800N

6.6 - Fine Screen Assembly Removal & Installation
1. Close the inlet and the outlet line valves.
2. Set the main switch at the control panel to "0" position.
3. Verify that filter is drained prior to service.
4. Remove the nuts and washers attaching the cover to the filter housing.
5. Remove the cover with the motor assembly.
6. Remove the body seal from the cover groove.
7. Pull the coarse screen out of the fine screen assembly
8. Unscrew the leading screw from the end of the dirt collector axis.
9. Pull the fine screen assembly out of the filter housing assembly with the dirt collector.
10. Remove the spring ring that holds the flushing chamber plate and pull the plate out
of the screen assembly.
11. Carefully pull the dirt collector out of the fine screen assembly.
Note: Be sure that the suction nozzles are in the right position to pass the ring in the
screen assembly.
12. Remove both upper and lower seals from the current fine screen assembly.
13. Remove the screen bearing (installed on the screen handle) from the current screen
assembly.
14. Remove the flushing chamber (unscrew it) from the old fine screen.
15. Position both upper and lower seals into the new fine screen assembly.
16. Lubricate upper and lower seals with silicon grease.
17. Install the screen bearing in the new fine screen assembly upper section.
18. Slide the dirt collector into the new fine screen –make sure that the suction nozzles
are in the right position to pass the ring in the fine screen assembly and the dirt
collector axis is inside the screen bearing.
19. Install the flushing chamber plate on the back side of the dirt collector and tie it to its
place with the spring ring.
20. Slide the new fine screen assembly into the filter housing assembly.
21. Slide the coarse screen into the fine screen assembly.
22. Verify that the straight side of the body seal fits into the groove located in the cover.
23. Install the leading screw on the end of the dirt collector axis.
24. Put the cover into it’s place on the filter. (Take care that the motor’s dirt collector axis
housing is slide on the dirt collector axis)
25. Install the nuts and washers attaching the cover to the filter housing.
26. Set the main switch at the control panel to "1" position.
27. Open the inlet and outlet line valves.
28. Perform a flushing cycle by pressing the MANUAL FLUSH switch at the control panel.
29. Check for leaks
WARNING
Take precautions while operating the filter as the filter may enter a flushing
mode automatically, without prior warning.
20
AF9800N