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REV.3 of 18 p6.03-v9.f fd-d_mi-r3.doc

AUTOMATIC IRON REMOVAL FILTERS SERIES:

FD/D

INSTRUCTIONS MANUAL

WARNING!

The equipment must be used only for the utilization for which they have been designed, as shown in the technical documentation.

Read carefully this leaflet until the end before starting any operation. Proceed strictly according to all directions included in this manual.

Automatic iron removal filters series FD/D are designed to treat raw water supplied

from municipalities or from well. ANY OTHER APPLICATIONS OF THE EQUIPMENT DIFFERENT THAN THE MENTIONED

ONES IS MADE UNDER THE ONLY RESPONSIBILITY OF THE USER. For any assistance concerning the installations, maintenance or utilization of the equipment

apply the NOBEL Service Center closest to you or directly :

NOBEL S.r.l. via Monfalcone 8 - 20132 Milano tel. +39 02 2827968 fax +39 02 2610839

AUTOMATIC IRON REMOVAL FILTERS INSTRUCTIONS MANUAL FD/D

s.r.l.Milano - ITALY of 18 p6.03-v9.f fd-d_mi-r3.doc

INDEX 1. Safety.......................................................................................................................................3

1.1. General ...............................................................................................................................3 1.2. How to displace the unit ......................................................................................................3 1.3. Hydraulics ...........................................................................................................................3 1.4. Electrical..............................................................................................................................3 1.5. How to store and delivery....................................................................................................3 1.6. Potassium permanganate ...................................................................................................4

2. Principles of working................................................................................................................4 3. Technical characteristics .........................................................................................................5

3.1. Assumed raw water characteristics.....................................................................................5 3.2. Technical characteristics (general) .....................................................................................5 3.3. Characteristics for each model............................................................................................5 3.4. Dimensions .........................................................................................................................5 3.5. Weight .................................................................................................................................6

4. Installation................................................................................................................................6 4.1. Room conditions .................................................................................................................6 4.2. How to remove packaging...................................................................................................6 4.3. How to move and lift the unit...............................................................................................7 4.4. Placing & commissioning ....................................................................................................7 4.5. Hydraulic connections .........................................................................................................8 4.6. Electrical wiring connections ...............................................................................................9

5. End cycle and regeneration .....................................................................................................9 5.1. End cycle.............................................................................................................................9 5.2. Regeneration.....................................................................................................................10

6. Control panel .........................................................................................................................11 6.1. Functions of the logical programmer.................................................................................11

7. SETTINGS.............................................................................................................................12 7.1. Special notes concerning the programmer .......................................................................12 7.2. How to set current time and day .......................................................................................12 7.3. How to set time and day of regeneration ..........................................................................13 7.4. How to set time of phases.................................................................................................14 7.5. Standard settings ..............................................................................................................14

8. Starting-up .............................................................................................................................15 9. Service & maintenance..........................................................................................................16

9.1. Disposal ............................................................................................................................16 10. Main components ..................................................................................................................17 11. Trouble shooting guide ..........................................................................................................18

Annex

DRAWING 1: dimensions DRAWING 2: components models FD04/D, FD06/D DRAWING 3: components models FD08/D ÷ FD40/D DRAWING 4: installation models FD04/D, FD06/D DRAWING 5: installation models FD08/D ÷ FD40/D Wiring diagrams Special instructions membrane valves



1. Safety

1.1. General The equipment has been designed and constructed according to D.P.R. n° 459 of 24th July

1996 (regulation for accomplishment of Norms 89/392/CEE, 91/368/CEE, 93/44/CEE and 93/68/CEE regarding the unification of States members laws in so far as machines are concerned).

It has been designed and constructed according to European Norms UNI EN 292-1, UNI EN 292-2, UNI EN 292-2/A1, UNI EN 983, CEI EN 60439-1, CEI EN 60 204-1.

Only authorized and skilled personnel will be allowed to carry out installation, start up as well as routine and planned maintenance.

1.2. How to displace the unit Particular care and attention should be put in during moving and displacing of heavy items, in

order to avoid injuries to persons or damage properties. The heavy parts must be lifted and displaced always hooking and lifting them by the points shown on the drawings (see fig. 1) and using only suitable ropes, hooks and/or chains, according to the weight (see weight table § 3.5 page 6).

1.3. Hydraulics All operations must be performed by and/or under direct supervision of skilled and authorized

operators, using proper tools and personal protection devices if required (CE marked). Before any operation of taking out pipes or part of hydraulic system, it is required to release

the pressure inside and empty the part of the system.

1.4. Electrical Before starting any operation on electrical devices, be sure that main power supply is OFF.

All operations must be performed by skilled and authorized operators. In case of liquid leakage, switch off the main power supply before operate. Before the

switching ON, be sure all the parts of the system are perfectly dry. Check that the available electrical power is correct, (see § 3.2 page 5) before connection. Do not make preliminary wiring connections.

1.5. How to store and delivery = ºC t = ºF humidity rel. notes • closed rooms 5÷45 41÷113 5÷95% without condensate • open space 5÷45 41÷113 5÷95% without condensate protect from sun-light and rain. • transport 5÷45 41÷113 5÷95% without condensate protect from sun-light and rain.



1.6. Potassium permanganate

The chemical used for regeneration is potassium permanganate. Follow strictly the directions of the manufacturer in the handling of this chemical (the chemical, in solid state is classified as HARMFUL, COMBURENT, while in diluted solution at the recommended concentration is classified as HARMFUL only). The potassium permanganate is completely removed from the filtering media during the washing phase of regeneration. Despite of this, it is possible that residual of chemical can still remain inside the media, at the end of regeneration, due to hydraulic disfuntion during regeneration itself. It causes that the first water supplied during service will carry these residuals, hence the water will not be suitable for any utilization, furthermore if is drinking water or similar uses. The presence of potassium permanganate in water, even at a very low concentration (few ppm) is clearly pointed out by a pink colour of the water, the intensity of the colour depends on the concentration. Therefore, it is strictly required that, at the end of any regeneration, the colour of the water is carefully checked before its utilization. In the case the colour warns that water contains residual of permanganate is required to investigate the cause of that, and then to proceed to run anther washing of the media before use the supplied water (see § 11 "Trouble shooting guide").

2. Principles of working

Iron removing is the process of filtration that allows to remove iron and manganese from water. This special filtration is made through a special catalytic media filter, (manganese greensand, MG) which action is to oxide and then filter the dissolved iron and manganese.

Another layer of inert filtering media is included, as top layer, to improve the filtration. The media filter is automatically and usually regenerated by a solution of potassium

permanganate. Iron removal filters series FD/D are used for water treatment for residential and industrial

applications as well. All the materials, media filter included, are food grade and approved for drinking water . The range of models includes systems with capacity from 4.0 up to 40.0 m³/h. The working of the system is controlled by an automatic programmer, allowing to schedule how often and the time of day of the regeneration.

During regeneration the water supplying is completely inhibited by means of a membrane valve mounted on the outlet line.



3. Technical characteristics

3.1. Assumed raw water characteristics • organics NIL • Fe or Mn inlet water ppm ≤ 3.0 • pH inlet water > 7.0 • water temperature (min÷max) ºC (ºF) 5÷40 (41÷104) • water pressure (min÷max) bar (kPa) 2÷8 (200÷800)

3.2. Technical characteristics (general) • power supply V ph/Hz W 110÷240 1/50÷60 50 • air supply bar (kPa) 5÷8 (500÷800) • ∆p min/max bar (kPa) 0.2÷1.0 (20÷100) • regeneration time min. 60÷80

3.3. Characteristics for each model MODEL connections flow m³/h regenerant tank regeneration consumption

IN/OUT drain regenerant pipe operating backwash capacity liters

KMnO4 100% kg water liters

FD 04/D 1" 1" PVC Øi 16 mm 4.0 6.0 200 0.51 1800

FD 06/D 1¼" 1¼" PVC Øi 16 mm 6.0 9.0 200 0.68 2400

FD 08/D 1½" 1½" PVC Øi 16 mm 8.0 12.0 200 0.85 3000

FD 10/D 1½" 1½" PVC Øi 16 mm 10.0 15.0 300 1.20 4200

FD 13/D 2" 2" PVC Øi 16 mm 13.0 19.5 300 1.53 5300

FD 15/D 2" 2" PVC Øi 20 mm 15.0 22.5 520 1.95 6700

FD 19/D 2½" 2½" PVC Øi 20 mm 19.0 28.5 520 2.3 7900

FD 23/D 2½" 2½" PVC Øi 20 mm 23.0 34.5 520 2.7 9300

FD 30/D DN80 2½" PVC Øi 20 mm 30.0 45.0 850 3.74 12800

FD 35/D DN80 2½" PVC Øi 25 mm 35.0 52.5 850 4.25 14500

FD 40/D DN80 DN80 PVC Øi 25 mm 40.0 60.0 1000 4.84 16500

3.4. Dimensions

See DRAWING 1 dimensions



3.5. Weight WEIGHT (approx.) on service

MODEL vessel regenerant tank

MG anthracite quartz-sand

shipping vessel regenerant tank

kg kg l (kg) l (kg) kg kg kg kg FD04/D 150 10 170(221) 50(35) 25 480 700 210

FD06/D 180 10 226(294) 60(42) 35 600 1000 210

FD08/D 300 10 285(370) 100(70) 50 850 1400 210

FD10/D 340 14 400(520) 120(84) 60 1100 1700 320

FD13/D 390 14 510(663) 170(120) 75 1300 2100 320

FD15/D 435 18 650(845) 200(140) 100 1600 2600 540

FD19/D 550 18 765(995) 240(168) 125 2000 3100 540

FD23/D 610 23 900(1170) 300(210) 150 2300 3600 540

FD30/D 740 33 1245(1618) 400(280) 200 3000 4800 880

FD35/D 870 33 1415(1840) 440(308) 250 3500 5500 880

FD40/D 1100 43 1613(2097) 500(350) 250 4000 6400 1050

4. Installation

4.1. Room conditions Room & climate conditions. • room temperature 5÷45ºC (41÷113ºF) • humidity rel. 5÷95 % without condensate • sun-light protection required • rain, snow etc. protection required

4.2. How to remove packaging The vessels are shipped wrapped in a plastic foil; remove it with care before starting-up. The

automatic facilities are packed in a wooden crate. Withdraw carefully the components from the crate. The regenerant tank is shipped as separated, already assembled and protected by a plastic foil wrapped around.

Keep the cards and everything contained inside the packaging. The media filter are shipped as separated: • in bags of 28.3 liters (38.2 kg) each or fraction, the MG • in bags of 25 kg (35 liters) each or fraction anthracite • in bags of 25 kg each or fraction quartz sand



4.3. How to move and lift the unit The vessels can be displaced when they are empty, hooking and lifting by the special rings

mounted on the upper part of the vessels (see fig. 1). It is recommended to use proper sized hooks and ropes, according to the weight. It is also possible to hook and lift the vessel by the bearing legs.

Figure A

4.4. Placing & commissioning Place the unit according to the available room of the site and the required room for current

maintenance and service of the equipment. See the dimensional drawing.

• Place the column and the regenerant tank on a perfectly flat surface. Their mutual position is shown on the installation drawing. The shown scheme is only suggested; the column can be placed in different positions, according to the inlet/outlet connections on the valve group.

• Load the supplied quartz-sand into the vessel, through the lower man-hole, until the sand covers completely the filter-nozzles. Make a flat surface of the sand using a wooden tool, in order to avoid any damage to the coating of the vessel. Close the man-hole tightening the nuts.

• Load the supplied media filter into the vessel, through the upper man-hole (or through the upper head, see components drawing). The media filter are shipped separately; check that the shipped and available quantity complies exactly with the quantity listed in the Weight Table (§ 3.5 page 6). Filtering media must be loaded, one after the other one, and according to the following order:

◊ quartz sand 04÷07 mm ◊ MG ◊ anthracite

• After completed the loading, close the upper man-hole (or upper head) • Fix the group with membrane valves to the column (see installation drawing) • Fix the control board to the wall.

GOLFARI HOOKING

GAMBE DI SOSTEGNO LEGS

CAUTION : DO NOT LIFT OR MOVE THE UNIT HOOKING OR CATCHING BY THE PRE-ASSEMBLED PARTS.



4.5. Hydraulic connections In order to avoid shut-off during maintenance operations, an emergency by-pass line

should be provided

It is stricly required to avoid that the water pressure inside the unit goes down to negative value; it would damage the vessel and cause the suction of the chemical when the unit is not used; the chemical would be released, later, during normal service. Therefore, it is suggested to put in a check valve along the water line and immediately upstream of the unit. This safety measure is adequate in the case the unit is directly connected to a well and the utilization of water is at an higher level than the unit itself. Whether the the utilization of water is at a lower level than the unit, instead, a vacuum breaker valve is required.

• Complete the line from inlet fittings to the raw water line. • Complete the line from outlet fittings (valve V2) to the treated water line. • Connect the drain valves (V1 and V6) to a floor drain. The gate valve mounted downstream

of the valve V6 will be used to adjust the backwash flow rate. A common flexible pipe made in plastic or rubber can be used for the drain line; its diameter must be of at least one size larger of the one mentioned on “CHARACTERISTICS FOR EACH MODEL” table. It is suggested the drain line could be inspected in order to check quantity and quality of drain water, as well as any leakage of media filter from the unit.

• Complete the line from the regenerant drawing fitting (on the injector of the column) to the fitting on the regenerant tank; for the connection use the supplied plastic tubing. Should the tubing need to be replaced, take care that the new one must be suitable to withstand the pressure and depressure (0.5 bar negative), and corrosion-proof.

• Connect the inlet air fitting, placed on the base manifold of the solenoid valves, to a compressed air-mains, complete with pressure reducer, dehumidifier filter and shut-off valve. The air pressure must be kept at value equal or higher of the pressure of water to be treated, with max value of 8.0 bar.

• Whether water is used to pilot the valves, the inlet fitting of the base manifold of the solenoid valves must be connected to the pilot water fitting (¼"), pre-arranged on the inlet manifold of the column; run to the drain a pipe from the drain fitting (¼") of the base manifold of the solenoid valves.

• Complete the line between the outlet fitting of each solenoid valve to the correspondent membrane valve:

SOLENOID VALVE MEMBRANE VALVES EV no. TYPE no. TYPE

1 NC V1 - V5 NC 2 NC V2 NO 3 NC V3 - V6 NC 4 NC V4 NO

All the solenoid valves can be hand-driven by the lever placed at the base of each of them; the turning of the lever simulate the action of the coil. Then, for valves NC type, the valve is closed when the lever is on parallel to the base; it is opened when the lever is on perpendicular to the base itself.



4.6. Electrical wiring connections (see electrical drawing)

Make wiring connections in the control board QE according to following directions :

o o

o o

power supply 230V, 50 Hz directly to the inlet clamps of the main switch.

o o GND The following contacts are also available for remote control :

I5 input (24 V cc) to start regeneration inhibit RR relais with free voltage contact (max 3A - 240V) for running regeneration signal

5. End cycle and regeneration

5.1. End cycle The adjustment of the end cycle depends on the quantity of iron the water contains. Take note of the parameters to be taken in consideration, as below listed, since a correct

adjustment can be made only checking the real operating conditions. The end of a cycle is reached when the pressure drop across the filter is approx. 0.8÷1.0 bar

(80÷100 kPa). Since the pressure drop depends on, mainly, the quantity of iron the water contains, it is

suggested to adjust the time schedule of the filter only temporarily and check the real pressure drop across the filter.

After checked after how long time the max allowable pressure drop is reached, it is possible to adjust the time schedule of the regeneration definitely.

The filters are equipped with an electronic time programmer that allows to schedule the automatic regeneration: it starts at selected time and day (24 h, 7 days, max 3 regeneration per day).



5.2. Regeneration The regeneration is automatically controlled (by time); it can also be manually started, at any

time, just pushing the button "START REGEN.".

CAUTION : • The pushing of the button "START REGEN", while a regeneration is already running, does not have any effect.

• An undesired regeneration running can be stopped at any moment, just by pushing the button "STOP REGEN".

The regeneration can also run during power failure, by hand-driving the lever of the pilot solenoid valves: the solenoid valve is closed when the lever is on parallel to the base and it is open when it is on perpendicular to the base itself. Naturally, the compressed air supplying (air controlled valves) or pilot water supplying (water controlled valves) must be assured.

The correspondent membrane valves (controlled by the pilot solenoid ones), if NC type, is open when the solenoid valve is open, and viceversa if the membrane valve is NO type.

Naturally, compressed air (or pilot water) must be assured to control solenoid valves.

PHASE SOLENOID VALVES EXCITED (=OPEN)

OPEN VALVES

SERVICE // V2 - V4 BACKWASHING E2 - E3 - E4 V3 - V6

DRAWING E1 - E2 - E4 V1 - V5 RINSE E1 - E2 V1 - V4 - V5

For the time of each phase see § 7.5 pag. 14. The regeneration phases run one after another, as follows:

1. Backwash : during this phase, the water flushes from the bottom to the top of the column, lifting the filtering media and releasing the solids trapped on its surface during the service. The backwashing water flows to drain from the top of the column. This is the only phase, during which the water crosses through the column from the bottom to the top.

2. Regenerant drawing : during this phase, a regenerant solution of water and potassium permanganate (KMnO4 1%) is drawn from the regenerant tank to the filtering media column, by an injector. The solution crosses through the column from the top to the bottom.

3. Rinse : it is the phase during which the residual of regenerant is flushed away through the filtering media; at the end of this phase filtering media column is ready to start again a new service cycle.

NOTE: During regeneration the water supplying is completely inhibited by means of a

membrane valve mounted on the outlet line.



6. Control panel

6.1. Functions of the logical programmer The logical programmer Siemens mod. LOGO controls the logical working of the whole

system. The display shows the current time and day, the status of the inlet signals, (marked as I), of the outlet signals (marked as Q).

It is also possible to modify the setting of the parameters (marked as B). The numbering of the inputs and outputs is written on several rows, each of them is related

to ten (I1÷I9, I10÷I19 etc.) By pushing the buttons or the display shows, alternatively, the time and day, the

inputs, the outputs. The used functions are the following :

MARK DESCRIPTION

I1 button of manual start of the regeneration I2 button to stop the regeneration I5 input available for regeneration inhibit Q1 output signal for the solenoid valve E1 Q2 output signal for the solenoid valve E2 Q3 output signal for the solenoid valve E3 Q4 output signal for the solenoid valve E4

B01 setting time and day(s) of regeneration B03 counting of the time of BACKWASHING phase (in seconds) B04 counting of the time of BRINE DRAWING/SLOW RINSE phase (in seconds) B05 counting of the time of RINSE phase (in seconds)

All adjustment of the automatic programmer are factory set, before shipment. Factory settings are listed at § "standard settings". Follow the directions explained below at chapter "SETTINGS", to modify them.

> <



7. SETTINGS

7.1. Special notes concerning the programmer

• during the operation of modification the normal service runs normally and it is NOT interrupted

• in modification menu, the digits visualized on the line (marked as Cnt) below the one of setting (marked as Lim), shows the actual status of counting of the selected parameter.

• the parameter B03, B04, B05 (counting of the phases time, in seconds) keep in memory the actual status of the counting, even in case of power failure.

• the internal clock of the programmer keeps the exact time for 80 hours even in case of power failure

• Do not remove the memory card (if installed) : the programmer blocks ! To re-start the system turn off the power, instert the memory card, turn ON again the power. Whether the system does not re-start, push the button "START REGEN." and, immediately afterthat, the button "STOP REGEN."

7.2. How to set current time and day To set the current time and day, proceed as follows : 1. push the button 2. push the button until the pointer > indicates "Set clock" 3. push the button 4. push the button to point the day or the number to be modified 5. when the pointer blinks on the day or the number to be modified, push the button

until the new desired day or value is shown. (symbols related to days of week are explained at § "how to set time and day of regeneration"

6. repeat the same operation with other values, if required 7. push the button to confirm (save) the modifications. 8. push the button to go back to the visualization of service The programmer is equipped with internal clock, keeping exact time for 80 hours in case of

power failure.

OK >

V

OK ESC

ESC V



7.3. How to set time and day of regeneration Use the timer visualized in parameters B01 No.1, B01 No.2, B01 No.3 to enter the time and

day of regeneration. Each of these parameters can be adjusted as time and of day of regeneration start, regardless of the others.

The days can be scheduled one by one or as a groups of days; the explanation of the symbols that LOGO display shows are the following :

◊ Su = Sundya ◊ Mo = Monday ◊ Tu = Tuesday ◊ We = Wednesday ◊ Th = Thursday ◊ Fr = Friday ◊ Sa = Saturday ◊ Mo..Fr = every day from Monday to Friday ◊ Mo..Sa = every day from Monday to Saturday ◊ Mo..Su = every day ◊ Sa..Su = Saturday and Sunday

The hours available for schedule are between 00:00 and 23:59; the symbol --:-- indicates not

any ON and not any OFF. Regeneration will start at the time adjusted on line ON The time on line OFF MUST BE adjusted 1 minutes later than the time on line ON. To enter new schedule or modify, proceed as follows : 1. push the button 2. push the button until the pointer > indicates "Set param" 3. push the button , display will show the parameter B01 No.01 4. push the button , the blinking pointer will be on the line of the Day 5. push the button until the desired day is shown 6. pushing the button the pointer moves on the number of the hours (lines ON e OFF) 7. when the pointer blinks on the number to be modified, push the button until the new

desired value is shown. 8. repeat the same operation with other values, if required 9. push the button to confirm (save) the modifications. 10.push the button to show the next parameter (B01 No.02) 11.proceed as explained at points 4-9 to change this parameter or push again the button

to skip to the next parameter (B01 No.03) 12.proceed as explained at points 4-9 to change this parameter or push twice the button

to go back to the visualization of service

OK OK V

> V

OK V

V

ESC

ESC V



7.4. How to set time of phases The time of each phases are factory set and should not be modified. Whether a modification

is required, proceed as follows : 1. operate as explained at above point 1-3 of § "How to set time of regeneration", to enter in

modification menu. 2. push several times the button until the parameter B03 (backwash) is shown 3. push the button , the blinking pointer will be on line Lim 4. push the button until the pointer blinks on the number to be modified 5. when the pointer blinks on the number to be modified, push the button until the new

desired value is shown. 6. repeat the same operation with other values, if required 7. push the button to confirm (save) the modifications 8. push the button , the parameter B04 (regenerant drawing) is shown 9. operate as explained at above point 3-7 to modify this parameter or push again the button

to skip to the next parameter B05 (rinse) 10.operate as explained at above point 3-7 to modify this parameter or push twice the button

to go back to the visualization of service

7.5. Standard settings These settings are valid for all models :

Parameter Day of regeneration

Time ON Time OFF Parameter Phase

Duration

B01 No. 1 Mo 02 : 30 02 : 31 B03 backwash 1200 " B01 No. 2 Mo -- : -- -- : -- B04 regen. drawing 780 " B01 No. 3 Mo -- : -- -- : -- B05 rinse 2400 "

V OK >

V

OK V

V

ESC



8. Starting-up

The starting-up of the unit consists of running a first regeneration cycle, during which the filtering media column will be filled of water, all automatic features will be checked and the unit will be prepared to start the service.

At the beginning, it is suggested to operate manually, hand-driven the valves, as above explained at the § "Regeneration". This way will allow to stop, to run for longer time or to repeat each phase as desired.

To start-up the unit, proceed as follows :

• DISCONNECT ELECTRIC POWER • Open the by-pass and inlet valves, keeping the outlet one shut. • close the gate valve along the backwash drain line • hand-drive the solenoid valve E4 to close the membrane valve V4 • hand-drive the solenoid valves E3 to open the backwashing membrane valves • open slowly and gradually the gate valve on backwash drain line. The water will enter inside

the vessel from the bottom and, during filling, will expel the air inside it. • When only water will come out from the drain, adjust the drain valve in order that the flow

rate will be the highest allowable without any leakage of media filter through the drain line; when the proper flow rate of backwash has been stated, adjust the gate valve definitely. The backwashing phase must run until all the water coming out the drain is perfectly clear.

• Prepare the regenerant solution in the tank. It must contain KMnO4 (Potassium Permanganate) at 1 %, or otherwise, diluting kg 1 of pure KMnO4 in 100 lt of soft or deionized water. See § 3.3 page 5 for the capacity of the regenerant tank.

• Hand-drive the solenoid valves E3 to close the backwashing membrane valves. • Hand-drive the solenoid valve E1 to open the membrane valves V1 and V5 (CHEMICAL

DRAWING). • Check that, in this position, a slow flow will run out of the drain while, in the same time, the

regenerant flows from the chemical tank to the unit. Check the level mark diminution in the chemical tank

Leave in this position until the proper quantity of chemical, designed for the equipment, will be completely drawn.

Since the drawing flow rate depends on the pressure of inlet water and other operating conditions, it is required to check the exact time the system takes to draw the correct quantity of chemical. This datum (the drawing time) should be set in the programmer for subsequent automatic cycles, as explained below. See § 3.3 page 5 for the exact quantity of chemical.

Take note that the mentioned quantity of potassium permanganate (KMnO4) in the table are of 100 % chemical, while the quantity to be drawn (solution at 1%) will be 100 times higher.

• When the proper quantity of chemical is completely drawn, hand-drive the solenoid valve E4 to open the membrane valve V4 (rinse); the rinse phase must run until all the water coming out the drain is perfectly clear.

• Hand-drive the solenoid valves E1 to conclude the regeneration; the column is now ready for service.

• Switch ON the control panel. • Open the outlet valve and close the by-pass valve.

Starting now the unit is on service and feeds treated water.



9. Service & maintenance

Automatic iron removal filters are equipment designed to treat raw water supplied from municipalities or from well.

ANY OTHER APPLICATIONS OF THE EQUIPMENT DIFFERENT THAN THE MENTIONED

ONES IS MADE UNDER THE ONLY RESPONSIBILITY OF THE USER. The correct handling of the equipment requires : − take off the raw water large sized suspended solids, if any, by an adequate pre-filtration − check that the air and/or water pressure are within the stated values. − check the potassium permanganate solution level in the regenerant tank. Not any further special maintenance operations are required. The only consumption material is potassium permanganate KMnO4. The average life of the filter-bed is approx. 5÷8 years, according to the quality of raw water

and how often regeneration is featured.

9.1. Disposal In case of disposal of the unit or parts of it, it must be made according to local laws

concerning the waste of the materials. It should be noted that the exhausted media filter are listed as special waste. To dispose of them it should be required to identify the class of this waste, by a detailed analysis.

The waste of the regenerant, containing residual of potassium permanganate and the substances removed by the filtering bed must be made according to local laws concerning the waste of the materials.



10. Main components

Quantity DESCRIPTION 1 vessel in coated carbon steel (see table DIMENSIONS) 1 internal water distribution system (see following table) 1 injector for regenerant 1 regenerant tank made in polyethylene c/w cover (see table DIMENSIONS) # quartz-sand (see table WEIGHT) # MG (see table WEIGHT) # anthracite (see table WEIGHT) 6 membrane valves made in cast-iron (see following table) 4 pilot solenoid valves TYPE_______ 1 control panel 1 electronic programmer LOGO # galvanized steel fittings several size

membrane valves distribution

system MODEL V1 V2 V3 V4 V5 V6 number/type

FD 04/D 1"NC 1"NA 1"NC 1"NA 1"NC 1"NC 12 short

FD 06/D 1¼"NC 1¼"NA 1¼"NC 1¼"NA 1"NC 1¼"NC 18 short

FD 08/D 1½"NC 1½"NA 1½"NC 1½"NA 1"NC 1½"NC 30 plate

FD 10/D 1½"NC 1½"NA 1½"NC 1½"NA 1"NC 1½"NC 36 plate

FD 13/D 1½"NC 2"NA 2"NC 2"NA 1"NC 2"NC 42 plate

FD 15/D 1½"NC 2"NA 2"NC 2"NA 1"NC 2"NC 56 plate

FD 19/D 2"NC 2½"NA 2½"NC 2½"NA 1¼"NC 2½"NC 68 plate

FD 23/D 2"NC 2½"NA 2½"NC 2½"NA 1¼"NC 2½"NC 84 plate

FD 30/D 2"NC DN80NA 2½"NC DN80NA 1¼"NC 2½"NC 104 plate

FD 35/D 2"NC DN80NA 2½"NC DN80NA 1¼"NC 2½"NC 118 plate

FD 40/D 2½"NC DN80NA DN80NC DN80NA 1½"NC DN80NC 142 plate



11. Trouble shooting guide

PROBLEM CAUSE HOW TO SOLVE • The electronic programmer

does not switch ON. • electrical power is disconnected • the fuse is defected • the programmer is defected

• connect electrical power • replace the fuse • replace the programmer

• The regeneration does not run

• electrical power is disconnected • the programmer is not correctly adjusted • the programmer is defected

• connect electrical power • adjust correctly the programmer • replace the programmer

• Regeneration is electrically started but it does not run hydraulically

• there is not supplying of pilot fluid (air or water) • one or more solenoid valves are defected

• connect properly the supplying of pilot water or compressed air

• replace the defected solenoid valves • Regenerant tank is

completely filled and solution overflows

• the check valve, mounted on the drawing fitting of the chemical tank, does not close properly.

• clean or replace the check valve

• During regeneration the unit does not draw chemical

• drain line of the filter clogged or, however of too small size

• too low water pressure • drawing of air along the drawing line • injector dirty • one or both membrane valves no. 3 and 4 do not

close properly during the brine drawing phase

• re-built correctly the drain line • • increase the water pressure • check the connections and the integrity of the drawing tubing • clean the injector • check the proper working of the pilot solenoid valves • check and clean the seat of the plate of the membrane valve

• There is a leakage of water to drain during service

• one or both membrane valves no. 1 and 6 do not close properly.

• check the proper working of the pilot solenoid valves • check and clean the seat of the plate of the membrane valve

• The unit does not feed water • the membrane valve no. 2 does not open • check the proper working of the pilot solenoid valve • After regeneration the system

supplies coloured water • a water failure occurred during regeneration • the fast rinse time is too short

• allow the water flowing until water is perfectly clean and clear • adjust a longer time of fast rinse

• There is a leakage of filtering media to the drain or to the outlet line

• one nozzle of distribution system is damaged or broken

• replace the nozzle

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