Nobel - Fisa Tehnica

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SOFTENERS SERIES: AC/TAC/SV

AS/SAS/T

AS/SVAS/VAS/METER

INSTRUCTIONS MANUAL

WARNING!

The equipment must be used only for the utilization for which they have beendesigned, 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 softeners series AC & AS are designed to treat raw water suppliedfrom municipalities or from well.

ANY OTHER APPLICATIONS OF THE EQUIPMENT DIFFERENT THAN THEMENTIONED ONES IS MADE UNDER THE ONLY RESPONSIBILITY OF THE USER.

For any assistance concerning the installations, maintenance or utilization of theequipment apply the NOBEL Service Center closest to you or directly:

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



AUTOMATIC SOFTENERS INSTRUCTIONS MANUALAC/T AC/SV AS/S AS/T AS/SV AS/V AS/METER

s.r.l.Milano - ITALY Page 2 of 15 p10.02-v33.f as_stvm_mi-r2.doc

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INDEX1. Safety ......................................................................................................................................3

1.1. General ...............................................................................................................................31.2. How to displace the unit......................................................................................................31.3. Hydraulics...........................................................................................................................31.4. Electrical .............................................................................................................................31.5. How to store and delivery ...................................................................................................3

2. Principles of working................................................................................................................43. Technical characteristics......................................................................................................... 4

3.1. Assumed raw water characteristics ....................................................................................43.2. Technical characteristics (general) .....................................................................................43.3. Characteristics for each model ...........................................................................................53.4. Dimensions.........................................................................................................................53.5. Weight.................................................................................................................................6

4. Installation ...............................................................................................................................64.1. Room conditions................................................................................................................. 64.2. How to remove packaging ..................................................................................................74.3. How to move and lift the unit...............................................................................................74.4. Placing ................................................................................................................................74.5. Hydraulic connections.........................................................................................................84.6. Electrical wiring connections...............................................................................................8

5. End cycle and regeneration.....................................................................................................95.1. End cycle ............................................................................................................................95.2. How to select the end-cycle................................................................................................95.3. Regeneration .................................................................................................................... 10

6. Starting-up and settings.........................................................................................................11

7. Service & Maintenance.......................................................................................................... 127.1. Disposal ............................................................................................................................128. Components..........................................................................................................................13

8.1. Programmers .................................................................................................................... 139. Trouble shooting guide.......................................................................................................... 14

Annex

DRAWING 1a: components AC seriesDRAWING 1b: components AS seriesDRAWING 2a: installation and dimensions AC seriesDRAWING 2b: installation and dimensions AS series

DRAWING 3: automatic valve S132 & S132/SVDRAWING 4: automatic valve S230DRAWING 5: automatic valve S250Special instructions membrane valves.Programmer special instructions





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1. Safety

1.1. General

The equipment has been designed and constructed according to D.P.R. n° 459 of 24thJuly 1996 (regulation for accomplishment of Norms 89/392/CEE, 91/368/CEE, 93/44/CEEand 93/68/CEE regarding the unification of States members laws in so far as machinesare 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 418, CEI EN 60 204-1.

Only authorized and skilled personnel will be allowed to carry out installation, start upas 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 heavyitems, in order to avoid injuries to persons or damage properties. (see § 3.5 page 6).

1.3. Hydraulics

All operations must be performed by and/or under direct supervision of skilled andauthorized operators, using proper tools and personal protection devices if required (CEmarked).

Before any operation of taking out pipes or part of hydraulic system, it is required torelease 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 isOFF. All operations must be performed by skilled and authorized operators.

In case of liquid leakage, switch off the main power supply before operate. Before theswitching ON, be sure all the parts of the system are perfectly dry. Check that theavailable electrical power is correct, (see § 3.2 page 4) before connection. Do not makepreliminary wiring connections.

1.5. How to store and delivery

= ºC = 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.





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2. Principles of working

Softening is the process that allows to remove calcium and magnesium from water.These two elements, together with bicarbonate, are the main cause of the scale inside

thermal plant and domestic appliances (heating system, laundry machines, etc.). Theyalso can cause big trouble in many industrial process.The process of softening is featured by ion exchange. The resins contained in the

column exchange the ions calcium and magnesium (Ca++ and Mg++) against sodium ions(Na+), of which they are charged. When the resins are exhausted, they are fully chargedof calcium and magnesium (Ca++ e Mg++) while they do not have any more sodium ions(Na+) available for exchanging and they need to be regenerated.

Regeneration means re-built the charge of sodium ions (Na+) available from sodiumchloride (NaCl), common salt used in kitchen. During regeneration an exchanging back isperformed of sodium ions (Na+) against ions calcium and magnesium (Ca++ e Mg++) whichare carried away to drain. The equipment prepares automatically the brine from the salt(NaCl) in grain or tablets.

AC and AS series softeners are used for water treatment for residential and industrialapplications as well. All the materials, resins included, are food grade and approved fordrinking water.

The range of models includes systems with capacity from 1 up to 20 m³/h and capacityfrom 90 up to 4300 m³ x ºF. The working of the system is controlled by an automaticprogrammer, allowing to schedule the frequency and the hour for the regeneration. Thenthe system automatically starts the regeneration that proceed automatically. Duringregeneration, (except for "fast rinse" phase) the system supplies non softened waterthanks to a by-pass inside the automatic valve; for AS/METER models, water supplyduring regeneration is completely inhibited by means of a membrane valve mounted onthe outlet.

These system can be equipped with automatic sterilizing device (Nobel CL 90 or CL

180 ), according to the local laws of some countries for the treatment of drinking water.

3. Technical characteristics

3.1. Assumed raw water characteristics

• organics NIL

• max. hardness ºFr 120

• water temperature (min÷max) ºC (ºF) 5÷40 (41÷104)• water pressure (min÷max) bar (kPa) 2÷6 (200÷600)

3.2. Technical characteristics (general)

• hardness of treated water ºFr < 0.5

• power supply V ph/Hz W 230 1/50 10

• regeneration time min. 40÷70





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3.3. Characteristics for each model

MODEL connections flow max. cycle brine tank capacity consumption for

regenerationIN/OUT drain mm m³/h m³ x ºFr l tot kg salt salt kg water l

AC 90 1" 22 1.8 90 55 2.25 120

AC 150 1" 22 2.4 150 75 3.75 200

AS 90 1" 22 1.6 90 100 2.25 120

AS 150 1" 22 2.4 150 100 3.75 200

AS 210 1" 22 2.8 210 100 5.25 280

AS 300 1" 22 3.2 300 150 7.5 400

AS 450 1" 22 4.1 450 150 11.25 600

AS 600 1" 22 4.5 600 150 15.0 800

AS 800 1¼" 22 5.0 800 200 19.5 1040

AS 1050 1¼" 22 5 1050 300 26.25 1400

AS 1055 1½" 22 8 1050 300 26.25 1400

AS 1345 1¼" 22 5 1350 300 33.75 1800

AS 1350 1½" 22 9 1350 300 33.75 1800

AS 1355 1½" 1¼"F 11.5 1350 300 33.75 1800

AS 1650 1½" 22 9 1650 300 41.25 2200

AS 1655 1½" 1¼"F 11.5 1650 300 41.25 2200

AS 1950 1½" 22 9 1950 300 48.75 2600

AS 1955 2" 1¼"F 16 1950 300 48.75 2600

AS 3000 2" 1¼"F 18 3000 520 75.0 4000

AS 4300 2" 1¼"F 20 4300 850 108.75 5800

3.4. Dimensions

See DRAWING 2a or 2b installation & dimensions





3.5. Weight

WEIGHT (approx)

MODEL vessel withresins

brine tank shippingweight

on service

kg kg kg vessel kg brine tank (fill) kg

AC 90 / / 35 110 /

AC 150 / / 50 150 /

AS 90 25 5 35 45 110

AS 150 35 5 45 65 110

AS 210 45 5 55 85 110

AS 300 60 6 75 120 160

AS 450 85 6 105 170 160

AS 600 115 6 140 230 160

AS 800 145 7 170 290 210

AS 1050 190 12 210 385 320

AS 1055 190 12 210 385 320

AS 1345 250 12 270 495 320

AS 1350 250 12 270 495 320

AS 1355 250 12 270 495 320

AS 1650 305 12 320 595 320

AS 1655 305 12 320 595 320

AS 1950 355 12 370 695 320

AS 1955 355 12 370 695 320

AS 3000 530 20 550 1060 540

AS 4300 750 30 800 1515 880

4. Installation

4.1. Room conditions

These units do not include visible moving or specially noising parts. There are not anyhigh temperature points. In cold countries, whether the room temperature is below 15 °C(59°F), the salt requires longer time to be dissolved, even up to 10 hours; this featuremust be considered in designing and selecting the correct system. Apply Nobel TechnicalDept. for further information.

Room & climate conditions.

• room temperature 5÷45ºC (41÷113ºF)

• humidity rel. 5÷95 % without condensate

• sun-light protection required

• rain, snow etc protection required





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4.2. How to remove packaging

The packaging consist of one wooden crates that contain the vessel with resins, onwhich the automatic valves have been already mounted; the brine tanks is shipped asseparated, already assembled and protected by a plastic foil wrapped around.

Open the wooden crate removing, first, the side cover, then withdraw carefully thecontents. Keep the cards and everything contained inside the packaging.

For models AC, which have the brine tank integrated in main structure, the packagingconsist of one carton box.

For models AS 1050 and following, the vessel is empty and is packed in a singlecarton box, pallet-sized for the largest model. The resins are shipped as separated inbags of 25 liters each.

4.3. How to move and lift the unit

The vessel containing the resins can be easily moved until it is in original packaging;

after removed the packaging it can be moved for short stretches by rotating it around theirbase, very carefully, to avoid the breaking of the plastic end.

The empty vessel and the brine tank can be moved avoiding bump or crashing whichcan seriously damage them.

Always do not move the vessel handling them by the top-mounted control valve.

4.4. Placing (see DRAWING 2a or 2b installation & dimensions)

• Follow the directions of the dimensional drawing for the correct placing of the unit,according to the dimensions of the available room and the required room for serviceand maintenance.

• Place the column of resins and the brine tank on a perfectly flat surface.NOTE : AC models, have the brine tank integrated in main structure.

For models AS 1050 and following, the resins are shipped separately.

The resins must be loaded according to the shipped quantity, and proceeding asfollows:

◊ Check that the shipped and available quantity complies exactly with the quantitylisted in the Components Table (see § 8 page 13).

◊ Keep the distribution pipe with bottom nozzle, exactly in the center of the vessel,while loading the resins. Take care that the resins do not fall inside the pipe; it canbe useful to put on the hole a scotch tape or something else, during the loading.

◊ After the loading has been completed, remove the scotch tape, if used, and cleanperfectly the thread hole of the vessel, taking off the spheres of resins that could

be there. Proceed in screwing on the control valve; the distribution pipe must beinserted inside the proper hole in the lower part of the control valve. In order tomake this operation easier, it is suggested to lubricate the end of the pipe or to wetit with water.

◊ After that, check that the O-ring seal from control valve and vessel is not damagedand is properly placed. Screw firmly the control valve on the vessel just tighteningit by hand only. Do not use any tools.





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4.5. Hydraulic connections (see DRAWING 2a or 2b installation & dimensions,

DRAWING 3, 4 or 5 automatic valves )

• connect the inlet and outlet fittings, placed on the back side of automatic valve, tothe untreated water line. In order to avoid shut-off during maintenance operations,an emergency by-pass line should be provided.

The fittings of automatic valve type S132 (black plastic ones) have to be inserted justpushing them inside the connections of body valve and then fixed with proper pins. Thefittings of valves type S230 and S250 are thread union type (bronze ones).

• MODELS AS/V only: insert pulse sender water meter, horizontally downstream thesoftener, along the outlet piping.

• MODELS AS/METER only: insert, pulse sender water meter - membrane valve unit,

horizontally downstream the softener, along the outlet piping. Run the plastic tubes,already connected to the front of the automatic valve, to the fitting placed on thediaphragm valve.

CAUTION: It is recommended to hold the pipes with adequate brackets, to avoid breaking onthe plastic connections.

• complete the line from the injector fitting placed on the top of the control valve to thefitting of the float valve mounted inside the regenerant tank, using the suppliedplastic tube. For AC models such connection is already done.

• complete the line from the drain hose connection (placed on the side of automaticvalve), to a floor drain, using a proper sized common flexible rubber or plastic tube

(see § 3.3 page 5).

• for models AS1355, AS1655, AS1955, AS3000, AS4300 only : the plastic tubingalready connected to the drain fitting of the pilots on rear side of the programmer,must be connected to the main drain line.

• connect the overflow fitting of the brine tank to a floor drain; this line must runseparately from the above mentioned drain connection.

4.6. Electrical wiring connections

• Connect the power feeder of the programmer to a power socket; check that theavailable power is correct as listed in technical characteristics (see § 3.2 page 4).

• MODELS AS/V and AS/METER only: Connect the DIN plug from the pulse senderwater meter on the socket placed on the side of the electronic programmer.





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5. End cycle and regeneration

5.1. End cycle

The softeners are equipped with an electronic programmer that allows to schedule theautomatic regeneration (end of cycle).

The regeneration runs according to the following modes :

• SERIES AS/S : electro-mechanic time programmer: (24 h, 7 days, max 1regeneration per day)

• SERIES AC/T ed AS/T : electronic time programmer : selected time and day (24 h, 14days, max 1 regeneration per day)

• SERIES AC/SV and AS/SV:

end-cycle by time/volume (pulse sender inside automaticvalve); regeneration runs at selected time and day (24 h, 14gg, max 1 regeneration per day), or after the preset volume ofwater has been supplied but only at a pre-set time.

• SERIE AS/V : as for AS/SV series but with external pulse sender watermeter

• SERIE AS/METER : end-cycle by volume; regeneration runs after the presetvolume of water has been supplied, with membrane valve toshut off the flow during regeneration

The end-cycle programming has to be adjusted according to the quality of availablewater and the consumption of water.

The max. quantity of available soft water the equipment can supply between twofollowing regeneration is to be calculated as follows:

=

where 1°Fr = 10 ppm CaCO3 = 0.56° German

The cycle of all NOBEL softeners are expressed by the number identifying the model(i.e. AS 1350/V, the cycle is 1350 m3 x °Fr).

The regeneration can also be started manually at any time (see instruction of theprogrammer).

5.2. How to select the end-cycle

The programmer installed on the AS/V and AS/METER series allows also workingmode time only, besides volume only and time/volume modes.

Whether it is desired to use the equipment with working mode different than thestandard one, it is possible to select an end-cycle mode different than the pre-set one; it isrequired to select the new mode, according to the explanation in the special instruction ofthe programmer (mod. AQUA TIMER).

m³ of available soft water per cyclecycle of the softener (m³ ∗ ºFr)

total hardness o raw water °Fr





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5.3. Regeneration

The regeneration phases run one after one, as follows :

1. Backwash: during this phase, the water flush from the bottom to the top of thecolumn, lifting the resins which are mixed together and release the solids trapped onsurfaces of the resins bed during the service. The backwashing water flows to drainfrom the top of the column. This is the only phase, during which the water crossesthrough the column from the bottom to the top. During this phase, it is very importantto check that there is no leakage of resins to the drain.

2. brine drawing: during this phase, a concentrated solution of water and sodiumchloride (common kitchen salt, in grain or, better, tablet) is drawn from the brine tankto the resins column, by an injector. The brine crosses through the column from thetop to the bottom.

3. slow rinse: it is the first step of the rinse, during which the ion exchanges betweensodium chloride and resins is featured. The time of this phase is not adjusted, sinceit starts when the brine tank is completely empty (all brine has been drawn); aspecial device built-in the brine float valve avoids the air drawing.

4. fast rinse: it is the phase during which the residual of salt is flushed away throughthe resins; at the end of this phase the resins column is ready to start again a newservice cycle.

NOTE: During the fast rinse phase the unit supplies the water to the brine tank, inorder to prepare the brine for the following regeneration. The brine tank refillwill be automatically completed when the level mark of water reaches the floatvalve inside the tank.

NOTE: During regeneration, (except for fast rinse phase), an internal by-pass lineallows the system to supply un-treated water; for AS/METER models, thewater supplying during regeneration is completely inhibited by means of amembrane valve mounted on the outlet line.

See programmer manual for the time of each phase of regeneration.





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6. Starting-up and settings

The starting-up of the unit consists of running a first regeneration cycle, during which

the column of resins and brine tank will be filled of water, all automatic features will bechecked and the unit will be prepared to start the service.

During the starting-up is not required that salt is available inside the brine tank. At theend of the first regeneration, fill the brine tank with salt.

See § 3.3 page 5 for recommended quality of salt to be used.

To start-up the unit, proceed as follows :

• DISCONNECT ELECTRIC POWER

• Open the by-pass valve, keeping the inlet and outlet ones shut.

• Turn clockwise the eccentric disk (or cam shaft for models with S250 automaticvalve) located on the back of the programmer, until the first piston is pressed

(BACKWASH).• Open slowly and not completely the inlet valve. Water will enter from the bottom of

the column as air will be expelled from the top to the drain.

• Using a pail, add water in the brine tank, until the water mark is approx. 30 cm (12inches) from the bottom (this is required for the initial regeneration only and isautomatically filled thereafter).

• When only water will come out, open completely the inlet valve and allow the waterflush until the water looks clear.

• Turn again clockwise the eccentric disk (or cam shaft), until both pistons arepressed (BRINE DRAWING AND RINSE). Check that some water flows to the drainline, while, in the same time, the water flows from the brine tank to the unit. Checkthe water mark diminution in the brine tank (BRINE DRAWING).

• Turn again clockwise the eccentric disk (or cam shaft), until only the second pistonis pressed. The first piston must be released (FAST RINSE). The water flows to thedrain line; allow the water flowing until the drain water looks perfectly clear. In thesame time the water flows to the brine tank, too, in order to prepare the brine for thefollowing regeneration cycle. The water level inside the brine tank is automaticallyadjusted according to the float valve.

• Turn clockwise the eccentric disk (or cam shaft), until both pistons are released andnot pressed (SERVICE).

• Switch on electrical power.

• Put the salt into the brine tank (it can also be completely filled). Take care not to putsalt inside the protection pipe.

• open the outlet valve and close the by-pass valve

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

WARNING (for models AS1355, AS1655, AS1955, AS3000, AS4300 only) :It can happen a hydraulic misfunction of the control valve (S250), due to specialoperating situations (usually caused by high pressure drop through the inlet Iineof water). Whether it happens, it is possible to solve the problem just closingpartially (reducing the flow of) the gate valve mounted on the drain of the valve.Please, take note that if the gate valve is closed too much, it can compromise thecorrect function of the brine suction during regeneration.





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7. Service & Maintenance

Softeners are equipment designed to treat raw water supplied frommunicipalities or from well.

ANY OTHER APPLICATIONS OF THE EQUIPMENT DIFFERENT THAN THEMENTIONED ONES IS MADE UNDER THE ONLY RESPONSIBILITY OF THE USER.

The correct handling of the equipment requires:

• take off the raw water suspended solids, if any, by an adequate filtration.

• check that the water pressure is within the stated values.

• check the salt level in the brine tank. A salt lack will cause the incompleteregeneration of the resins, or not any regeneration at all.

• it is suggested to use clean salt, better in the shape of tablets, available almosteverywhere, in order to avoid residuals of sand or dirties in the tank and along thebrine lines.

Not any further special maintenance operations are required.The only consumption material is salt.The average life of the ion exchange resins is approx. 5÷8 years, according to the

quality of raw water and how often regeneration is featured.

7.1. Disposal

In case of disposal of the unit or parts of it, it must be made according to local lawsconcerning the waste of the materials. It should be taken in consideration that resins areusually listed as plastic materials and not as toxic or harmful material (the safety bulletin ofresins are available upon request).





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8. Components

MODEL automaticvalve

resinvessel resins

distribution pipe

brinetubing float valves

water meter***

diaphragmvalve **

type Ø x h (inches) l Ø mm Ø ext mm Ø (inches) Ø (inches) Ø(inches) & type

AC 90 S132* 8x30 15 32 9.5 ³/8" / /

AC 150 S132* 10x35 25 32 9.5 ³/8" / /

AS 90 S132* 7x35 15 32 9.5 ³/8" 1" 1"NA

AS 150 S132* 8x44 25 32 9.5 ³/8" 1" 1"NA

AS 210 S132* 10x44 35 32 9.5 ³/8" 1" 1"NA

AS 300 S132* 10x54 50 32 9.5 ³/8" 1" 1"NA

AS 450 S132* 13x54 75 32 9.5 ³/8" 1" 1"NA

AS 600 S132* 14x65 100 32 9.5 ³/8" 1" 1"NA

AS 800 S132* 16x65 130 32 9.5 ³/8" 1¼" 1¼"NA

AS 1050 S132 18x65 175 32 9.5 ³/8" 1¼" 1¼"NA

AS 1055 S230 18x65 175 50 9.5 ³/8" 1½" 1½"NA

AS 1345 S132 21x60 225 32 9.5 ³/8" 1¼" 1¼"NA

AS 1350 S230 21x60 225 50 9.5 ³/8" 1½" 1½"NA

AS 1355 S250 21x60 225 50 9.5 ³/8" 1½" 1½"NA

AS 1650 S230 21x69 275 50 9.5 ³/8" 1½" 1½"NA

AS 1655 S250 21x69 275 50 9.5 ³/8" 1½" 1½"NA

AS 1950 S230 24x69 325 50 9.5 ³/8" 1½" 1½"NA

AS 1955 S250 24x69 325 50 9.5 ³/8" 2" 2"NA

AS 3000 S250 30x72 500 50 Øi 16 ¾" 2" 2"NA

AS 4300 S250 36x72 725 50 Øi 16 ¾" 2" 2"NA

* AC/SV ed AS/SV series S132SV valve with built in pulse sender** AS/METER series only*** AS/V and AS/METER series only

8.1. Programmers

PROGRAMMER TYPE SERIES

S AS/S only models

T AC/T AS/T with

SV AC/SV AS/SV valves

AQUATIMER AS/V AS/METER S132 and S230

S 2 pilots AS/S only models

T 2 pilots AS/T with valve

AQUATIMER 2 pilots AS/V AS/METER S250



AUTOMATIC SOFT

s.r.l.Milano - ITALY Page 14 of 15

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9. Trouble shooting guide

PROBLEM CAUSE

• The electronic programmer does not switchON.

• electrical power is disconnected• the electrical feeder of the programmer is

defected

• the programmer is defected

• connec• replace

• replace

• The buttons of the electronic programmerare on block

• a regeneration is running

• the electronic programmer has receivedelectromagnetic interference from somewhereelse.


• wait un

• make aprogramdata

• replace

• The regeneration do not run • electrical power is disconnected

• the programmer is not correctly adjusted


• connec

• adjust c

• replace• Regeneration is electrically started but it

does not run hydraulically• the geared motor of the programmer is defected • replace

• Regeneration is on block • the geared motor of the programmer is defected • replace

• Regeneration never ends • the electronic programmer has receivedelectromagnetic interference from somewhereelse.

• the microswitch of the programmer is defected

• make aprogramdata

• replace

• Brine tank is completely filled and wateroverflows

• the drain line of the softener is joined togetherwith over-flow line of brine tank

• brine float valve blocked or damaged

• a leakage of water between control valve andtank (AC series only)

• connecseparat

• clean o

• tighten



AUTOMATIC SOFT

s.r.l.Milano - ITALY Page 15 of 15

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follows

PROBLEM CAUSE

• During regeneration the unit does notdraw brine

• drain line of the softener clogged or, however of toosmall size

• too low water pressure

• drawing of air along the brine drawing line

• injector dirty

• filter of injector dirty

• brine float valve blocked or damaged

• re-built c

• increase

• check thbrine dra

• clean the

• clean the

• clean or

• There is a leakage of water to drainduring service

• internal pistons of the control valve blocked

• O-ring of internal pistons spoiled

• internal pistons spoiled

• pilot pistons spoiled or broken

• clean or

• replace O

• replace p

• replace p

• The unit does not feed treated water • regeneration does not run

• brine is not drawn

• a water failure occurred during regeneration

• resins spoiled

• the distribution pipe inside the unit came out of itsseat and caused a by-pass inside the unit

• see abov

• see abov

• run rege

• replace r

• place coif damage

• The unit does not feed water • pistons blocked during regeneration • clean or

• The unit feeds salted water afterregeneration

• a water failure occurred during regeneration

• the fast rinse time is too short

• allow themore

• adjust a

• There is a leakage of resins to the drainor to outlet line

• the nozzle of distribution pipe is damaged or broken

• the under-valve filter is broken or detached

• replace t

• replace u



















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Nobel - Fisa Tehnica