Netafim Arkal 3" Spin-Klin Battery User manual

1
Arkal Spin Klin2” Battery
Service & Maintenance Manual
910101-000597 08-2013 - ENG

2
Introduction
General
Armiad water systems congratulates you on purchasing the 2” Arkal Spin Klin Battery. All Arkal’s filters
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.
This Arkal 2” Spin Klin battery is an automatic self-cleaning filter designed for non-hazardous liquids only
and within the pressure and temperature framework described in the specifications table.
Safety Instructions
1. Prior to installation or handling of the filter, read carefully the installation and operation instructions
carefully.
2. Confirm filter draining prior to service.
3. Take precautions while lifting, transporting or installing the filter.
4. Installation of the filter should be performed so as to avoid direct water splashing on any of the
filter parts and especially on the electronic control unit.
5. Confirm that filter weight, when full, meets the support construction requirements.
6. Prior to installation confirm that line pressure matches filter’s operational pressure.
7. During installation, use standard flanges and connections only.
8. Check that all filter flange bolts are properly secured.
9. Please note, the filter enters a flushing mode automatically, without prior warning.
10. Use original parts only when servicing the filter.
11. Arkal cannot accept responsibility for any changes or modifications to the equipment.
Special Note
Before opening the filter lock, check that there is no pressure in the filter.

3
Operation
During the filtration stage, water flows through the inlet manifold and is distributed through the 2” x 2”
backwash valves into the Spin Klin filters.
The water then passes through the filter elements to the outlet manifold for consumer use.
Description of the Backwashing Process
1. The controller transmits an electrical command to the first solenoid according to either differential
pressure or time.
2. The solenoid then sends a pressure command to the backwash valve, moving it from the filtration
mode to the backwash mode.
3. Filter #1 is then backwashed with water from the outlet manifold that has been filtered by the other
filters in the system. Contaminated water and impurities flow out through the drain manifold.
4. On completion of the allotted backwashing time, the controller releases the backwash command,
and filter #1 returns to the filtration mode.
5. Filter #2 then enters the backwash mode, and the process is repeated until all the filters in the
system have been backwashed.
6. After all the filters have been backwashed the systems returns to the filtration mode, until the next
backwash cycle.

4
Spin Klin Technology- Spin Klin Spine
General:
The Spin Klin discs are stacked on the Spin Klin spine.
The discs are color-coded by micron size, and are
assembled according to your water filtration
requirements. The spine assembly has a spring
compression unit and an internal piston which are used
to alternately compress and release the discs during
filtration and backwash cycles.
Filtration Mode:
During the filtration process the filter discs are tightly
compressed together by the spring and the differential
pressure, forcing the water to flow through the grooves
and traps of the discs.
Backwash Mode:
During backwash the discs are released by releasing
the inlet hydraulic pressure. Multi-jet nozzles provide
tangential spray on the loosened discs, causing them to
spin, and release the retained solids, which are flushed
out to the drain.
2” x 2” Backwash Valve
Filtration Position:
Water flows from port A (main supply) to port B (filter connection).
Port C (drain water outlet) is closed by the seal.
Backwash Position:
Command pressure is applied to the bottom side of the diaphragm
through port D.The diaphragm moves up, pulling the sealed body by the
shaft. Port A is closed by the seal, preventing flow to the filter. Port C is
now open allowing flushing water to flow from port B (filter connection) to
the drain.
Filtration Mode Backwash Mode
A B
C
D
Filtration mode
Backflush mode
D
C
BA
TO DRAIN
INLET
OUTLET
BACKWASH
WATER
INLET

5
PRESSURE GAUGEAIR RELEASE VALVE
765 [30 1/8"] (IN-OUT)
185 [7 9/32"]
375 [14 3/4"]
433 [17 1/16"]
REF. 668 [26 5/16"]
REF. 961 [37 27/32"]
220 [8 21/32"]
BACKFLUSH VALVE
2" S.K. FILTER
C
250 [9 27/32"]
TYP.
IN
DRAIN
OUT
System Installation and Startup
Technical Data
Maximum Pressure
10 bar (25t)
140 psi
Minimum Pressure
2.8 bar
38 psi
Backwash Flow Rate per unit
10 m3/hr
44 gpm
Maximum Temperature
70C
158F
pH
4-11
4-11
2” Spin Klin Battery
Installation
A. Make sure that the inlet and outlet orientation is correct (shown by arrows on filter).
B. Prior to start-up check for any transport damage to the unit (system operates under pressure!).
C. Connect backwash drainage line.
D. Cover clamps need to be properly closed.
Start-up Operation
Start the backwash cycle, making sure that all system components function correctly.
Filter Load-up during Start-up
Close the downstream (flow control) valve (if available).
Flush few cycles until clean.
Slowly reopen the downstream valve.
If the pressure difference remains high, check and see if the flow rate is too high.
An excessive flow rate through the filter causes excessive pressure loss.

6
Control
Refer to the manufacturer’s handbook before installing the controller.
Make sure that the voltage of both the solenoid unit and controller are correct.
Set the manual operation button to automatic.
Check that the ∆P hydraulic switch HIGH and LOW pressure lines are correctly connected to
the appropriate ports.
Set the starting backwash switch to ∆P 5-7 meters (6 - 8p.s.i.).
Set the controller to a flush time of 20 seconds and a dwell time of 10 seconds. These
settings may require adjustment to conform to local water conditions. Typically, a 1 to 3 hour
interval between backwashes is recommended.
FLUSHING TIME
IN
OUT
2
"
S
.
K
.
F
I
L
T
E
R
DRAIN COM.
VENT
VENT
COM. IN
IN
2
"
*
2
"
B
A
C
K
F
L
U
S
H
"
B
E
R
M
A
D
"
V
A
L
V
E
CIN
OUT
DRAIN
OUT
IN
LP
Flushing
controller
P

7
Spin Klin –System Maintenance
Monthly Maintenance
Check inlet /outlet pressures:
In case the pressure differential is above 5 m / 7 PSI.
Activate automatic backwash of the Spin Klin filter battery.
In the event that the pressure differential remains high check for possible failures.
Check for leakages from the drain manifold:
In case there is a leakage of water during the filtration stage, check for possible failure at the
backwash valve seals.
Backwash controller performance:
Check that the controller timing parameters are correctly adjusted and activate automatic
backwash cycle. In the event of possible failure at the backwash controller, check for
possible failures.
Cleaning of the Command Filter:
Close the command filter inlet valve, release the pressure trapped at the command filter,
remove the cover. Thoroughly clean the filtration element and then reinstall the command
filter element and cover, then open the inlet valve.
Winterization:
In order to prevent the filter battery becoming damaged during water freezing - drain all
the water from the filter battery and the command filter and leave the drain valve open.

8
Seasonal Maintenance –Cleaning the Discs
When manual cleaning of the discs is required, please follow the steps described below:
Make sure that system is not under
pressure! Release the clamp and
remove the cover. (Figure 1)
Unscrew the butterfly-nut on the
filtration element. (Figure 2)
Remove the tightening cylinder.
(Figure 3)
Remove the discs (for convenience
we recommend using a plastic bag).
(Figure 4, 5)
Tie each set on a string and place
them in a cleaning solutions (HCL,
Chlorine, or other) refer to “Cleaning
Recommendations Clogged
Filtration Discs”.
Thoroughly wash the discs with fresh
water and then reassemble the discs
on the spines. (Figure 6)
Check that the correct quantities of
discs are assembled on the spine:
when the discs are pressed with two
hands, the top disc should be level
with the imprinted circle on the
outside of the spine. (Figure 7)
Put on the tightening cylinder and
tighten the butterfly-nut, (Figure 8,9)
Reassemble the filter cover and
tighten the clamp. (Figure 10, 11)
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11

9
Cleaning Recommendations for Clogged Filtration Discs
Water-formed deposits may cause clogging of the filter discs. The formation of these deposits
depends on the quality of the filtered water and environmental conditions like temperature, pH,
light, duration of filtration and more.
Common water-formed deposits are:
Biological or organic deposits (mostly mucous or oily to the touch, beige, brown or
green in color)
Iron oxide (rust) or other metal oxides
Carbonates (white or gray deposit)
Combinations of the above
If these deposits cannot be eliminated by pretreatment of the water, we recommend the
following cleaning procedure:
Material and Equipment
A well ventilated working place.
2 small containers (1 liter), 2 large containers (15 liter) and a stirring stick, all
resistant to chemicals, preferably of polypropylene.
Plastic rope to tie up the disc.
Sodium Hypochlorite NaOCl -
Strong oxidizing liquid, commercial concentration: 10%.
Oxidizes and removes organic and biological deposits.
Hydrochloric Acid HCl -
Very corrosive liquid, commercial concentration: 30%.
Dissolves and removes carbonates, iron oxide, and other deposits.
Safety equipment: safety glasses, gloves, long pants, long sleeved shirt and shoes.
ATTENTION!
While working with chemicals protect yourself with the necessary safety equipment:
Safety glasses, gloves, protective clothing
Work in a well ventilated area
Follow the manufacturer’s instructions

10
Cleaning Organic and Biological Deposits
Open the filter and remove dirty discs.
Attention –Never open the filter before the pressure has been released.
Arrange the discs loosely on the plastic rope
Prepare a 5% Sodium Hypochlorite solution:
1) Pour 5 liters of water into one of the large containers.
2) Add 5 liters of Sodium Hypochlorite (10%) into the water.
Soak the discs in the solution so that both sides are covered. To achieve
maximum cleaning, agitate the discs several times with a stirring stick.
Contact time with cleaning solution: up to 8 hours
Remove the discs carefully from the solution, put them in the second large container
and rinse them very well with clean water before placing them back in the filter.
We recommend flushing the cleaned discs again in the filter to ensure that all
chemical residues are removed.
The cleaning solution can be used for several sets of discs. As the cleaning activity of the
solution deteriorates, it may be necessary to soak the discs for a longer time.
Cleaning Carbonates and Iron Deposits
Open the filter and remove the dirty discs.
Arrange the discs loosely on the plastic rope.
Prepare a 5% Solution of Hydrochloric Acid:
1) Pour 10 liters of water into one of the large containers.
2) Carefully add 2 liters of Hydrochloric Acid (30%) into the water.
Soak the discs in the solution so that both sides will be covered.
PLEASE NOTE: Carbonates react violently with hydrochloric acid
(foaming, gas evolution).
To achieve maximum cleaning, agitate the discs several times with a stirring stick.
Contact time with cleaning solution: 1 - 8 hours.
Remove the discs carefully from the solution and rinse them well with clean
water before placing them back in the filter.
We recommend flushing the cleaned discs again in the filter to ensure that all
chemical residues are removed.
The cleaning solution can be used for several sets of discs. It may be necessary to soak the
discs for a longer period of time as the cleaning activity of the solution deteriorates.

11
Cleaning Complex Deposits
If the composition of the deposit is not known, perform the following test:
Take 5 discs for the test.
Soak 2 discs in a 5% Sodium Hypochlorite Solution.
Preparation of the solution:
Pour 1 cup of water into a small container, then add 1 cup of Sodium
Hypochlorite
(10% NaOCl).
Soak 2 discs in a 5% Hydrochloric Acid Solution.
Preparation of the solution:
Pour 2½ cups (= 500ml) of water into a small container, then add carefully
½cup (= 100ml) of Hydrochloric Acid (30% HCl).
Keep one disc as a control.
Observe the cleaning process:
- If one of the solutions removes all of the deposit, clean the discs in that solution
according to the instructions above.
- If neither solution removes the deposit completely, continue with the test procedure.
Remove the discs from both solutions, rinse them well with water and soak them
in the second solution: put the two discs, which have been in the Sodium
Hypochlorite Solution, in the Hydrochloric Acid Solution, and the other way
round.
Check the cleaning process:
- If one of the treatments removes all of the deposit, clean all of the discs following the
same two-step procedure in the exact same order. Rinse the discs well between the
two cleaning processes.
- If the deposit hasn’t been completely removed, send a set of untreated discs to the
laboratory for further examination.

12
Identifying Malfunctions in the 2” Spin Klin system
No Backwash Operation
Check inlet and outlet
pressures
Check & clean command
filter
Check controller –manually operate the backwash cycle
No command transfer
Functioning correctly
Some commands do not
function
Check electrical source
Replace battery if needed
Check electrical source
Replace battery if needed
Check solenoid electrical
connectors
Repair or replace the
solenoid
Check the valves
Command not received
Receives command
Check the water supply
control tube
Remove the valve’s cover
Check the diaphragm and the
piston
Replace if needed
Check & clean the drain
manifold and pipe
Contact your local distributor

13
Identifying Malfunctions in the 2” Spin Klin system
Continuous or Non-stop Backwashing
Continuous backwash
Non stop backwash cycle
Disconnect the control
pipes from the valves
Check inlet / outlet pressure
Check pressure differential gauge and replace if needed
Check controller described above
Contact your local distributor
Command transfer
No command
transfer
Disconnect the drain manifold
Check controller
Locate the nonfunctioning valve
Remove any obstruction
Repair the valve if needed
No command transfer
Command transfer
Replace control
panel
Check the solenoid
No command transfer
Command transfer
Replace the
solenoid if needed
Contact your local distributor