Nobel RO 809 /E User manual

rev. 0 ro809-812-815_mi-r0.doc

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REVERSE OSMOSIS RO 809 /E - RO 812 /E -RO 815 /E

INSTRUCTIONS MANUAL

INSTRUCTIONS FOR INSTALLATION

OPERATION & MAINTENANCE

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.

Reverse osmosis systems models RO/E 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 - Italy

tel. +39 02 2827968 fax +39 02 2610839

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INDEX

1. Safety........................................................................................................................................4

1.1. General ...............................................................................................................................4

1.2. How to displace the unit ......................................................................................................4

1.3. Hydraulics ...........................................................................................................................4

1.4. Electrical..............................................................................................................................4

1.5. Directions for storage, delivery, installation.........................................................................4

2. Principles of working.................................................................................................................5

3. Technical characteristics ..........................................................................................................6

3.1. Assumed raw water characteristics.....................................................................................6

3.2. Technical characteristics.....................................................................................................6

4. Installation ................................................................................................................................7

4.1. Room conditions .................................................................................................................7

4.2. How to remove packaging...................................................................................................7

4.3. How to move and lift the unit...............................................................................................7

4.4. Placing ................................................................................................................................7

4.5. Hydraulics connections .......................................................................................................8

4.6. Pneumatic connections .......................................................................................................8

4.7. Electrical wiring connections ...............................................................................................8

5. Control panel ..........................................................................................................................10

5.1. Commands and visualizations ..........................................................................................10

5.2. Logical programmer ..........................................................................................................11

5.2.1. Reports on the display of the programmer ..................................................................13

5.2.2. How to set current time and day...................................................................................13

5.2.3. How to set times and delays ........................................................................................13

5.2.4. How to use the function buttons of the programmer ....................................................14

5.3. Logic of working ................................................................................................................14

5.3.1. Levels ...........................................................................................................................14

5.3.2. External enabling signals .............................................................................................15

5.3.3. Hand-driven working ....................................................................................................15

5.3.4. Flushing........................................................................................................................15

5.3.5. Conductivity..................................................................................................................15

5.3.6. Minimum pressure........................................................................................................15

5.3.7. Working of the pump ....................................................................................................16

5.3.8. Remote alarm...............................................................................................................16

5.3.9. Optional features (available upon request) ..................................................................16

6. Starting-up and adjustments...................................................................................................18

7. Maintenance ...........................................................................................................................20

7.1. Periodical monitoring.........................................................................................................20

7.2. Non-working period ...........................................................................................................20

7.3. How to insert or replace membranes ................................................................................21

7.4. Cleaning of the membranes ..............................................................................................22

7.5. How to adjust the min pressure switch PC........................................................................23

7.6. Disposal ............................................................................................................................23

7.7. Table of chemicals for membranes cleaning.....................................................................24

8. Trouble shooting guide ...........................................................................................................25

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Annex :

•diagram UNIT DRAWING •special instructions filters FPA

•diagram DIMENSIONAL •special instructions flushing solenoid valve

•diagram PLACING •special instructions pilot solenoid valves

•diagram MEMBRANES WASHING •special instructions automatic ball valves

•diagram FRONT OF CONTROL PANEL •special instructions 3-ways valves

•wiring diagrams (4 pages) •special instructions high-pressure pump

•NOBEL running-test certificate •special instructions conductimeter

•components list •special instruction flow meters

•fitting-out table

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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 418, 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 components must be lifted

and displaced by lifting or hooking them up only by the points and facilities shown on the

attached drawings. It is strictly recommended to use only proper sized and suitable ropes,

chains or hooks (see DIMENSIONS & WEIGHT).

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), according to safety regulations for working areas. The operators must

be aware of the hazards and danger of the chemicals used in the process.

In case of leakage of chemicals and/or in case of accident (contact with skin, eyes,

etc.) follow strictly the directions mentioned on the safety bulletins of the chemicals

themselves. 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, using

proper tools and personal protection devices if required (CE marked), according to

safety regulations for working areas.

In case of liquid leakage, switch off the main power supply before operation. Before

the switching ON, be sure all the parts of the system are perfectly dry. Check that the

available electrical power is correct, as shown on technical data

Do not make preliminary wiring connections.

1.5. Directions for storage, delivery, installation

t = ºC

t = ºF

humidity rel.

notes

•closed rooms 5÷40 41÷104 5÷95% without condensate

•open space 5÷40 41÷104 5÷95% without condensate protect from sun-light and rain.

•transport 5÷40 41÷104 5÷95% without condensate protect from sun-light and rain.

•installation 5÷40 41÷104 5÷95% without condensate protect from sun-light and rain.

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2. Principles of working

Osmosis is a natural phenomenon : it is the spontaneous passage of a liquid from a dilute to

a more concentrated solution across a semi-permeable membrane. The driving force of the

solution through the membrane is its osmotic pressure. Osmotic pressure is function of the

concentration of the solution or, in our cases, of the salinity of water.

Reverse Osmosis is the process in which the natural osmotic flow is reversed. Reversal is

effected by the application of pressure, greater than the osmotic pressure, to the concentrated

solution. Fresh water diffuses through the membrane (practically containing only a small

quantities of dissolved salts).

Reverse osmosis process allows the removal of approx. 90÷99 % of dissolved salts and

pollutants, if any. The real % removal depends on the kind of membrane used.

The semi-permeable membrane consists of several layers of special fibers, and can be made

of different type and design (spiral wound, hollow fibber, etc.). The word permeate indicates the

product water, while the word concentrate indicates the flow of water carried to drain, which

contains the dissolved salts removed from the permeate.

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3. Technical characteristics

3.1. Assumed raw water characteristics

•silt density index (SDI) ≤3

•TDS of raw water ppm ≤5000 *

•raw water temperature min÷max ºC (°F) 10÷40 (50÷104)

•raw water pressure min÷max bar (kPa) 1.0÷6.0 (100÷600)

•bacteria nil

•free Chlorine ppm Cl ≤0.1

•iron ppm Fe ≤0.1

•silica ppm SiO2≤10.0

•total hardness: according to the pre-treatment

* max. value : according to the construction material used

3.2. Technical characteristics

RO809 /E RO812 /E RO815 /E

•TDS of treated water * ≤3 % of raw water

•power supply V/ph/Hz 400/3/50

•power kW 15 18.5 22

•working pressure bar (kPa) approx. 16 (1600)

•max. allowable pressure bar (kPa) 22 (2200)

•permeate t= 15 ºC l/h 9.000 ** 12.000 ** 15.000 **

•permeate t= 25 ºC l/h 10.800 ** 14.400 ** 18.000 **

•feed water min-max l/h 14.400÷22.000 19.000÷29.000 24.000÷30.000

•dimensions See dimensional diagram

•weight on service kg 650 750 850

•vessel nº 2 on serial + 1 on parallel working

•membranes 8” nº 9 12 15

•filtering elements nº 7 x 40" 15 x 40" 15 x 40"

* TDS of product water, as shown, depends on the chemical-physical characteristics of raw

water.

** treated water quantities, (permeate), as shown, depend on the raw water temperature (feed

water) and strictly depends on its chemical-physical characteristics.

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4. Installation

4.1. Room conditions

These units do not include visible moving or specially noising parts (see also the "noise

monitor chart" attached to the special instructions of high-pressure pump). There are not any

points which reaches high temperature.

4.2. How to remove packaging

The packaging consist of a wooden crate which contains the reverse osmosis system, skid-

mounted.

Open the wooden crate removing, first, the cover and, then, the sides. Keep the cards and

everything contained inside the packaging.

4.3. How to move and lift the unit

Some of the pipes of the plant are made in

plastic material, hence they can be easily

damaged. Do not lift and/or move the unit by

any part of the plant.

Use only fork-lift or other suitable equipment,

checking to warrant correct balance and

stability during the movement.

Insert the forks on the front of the skid as

shown on sketch.

4.4. Placing

Place the unit on a perfectly flat surface.

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 service and maintenance.

Not any anti-vibration devices is required, hence the unit can be directly placed on floor.

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4.5. Hydraulics connections see DIAGRAM OF THE SYSTEM and

DIMENSIONS DIAGRAM

•Connect the raw water line (I) to the filter (F), using pipes made in PVC or other suitable

materials, with size (Ø) equal or larger than the size of inlet connection (I).

•Whether the raw water contains a large quantity of suspended solids, the filters (filtration 5

µm) could be clogged very quickly; in this case a proper pre-filter with filtration of 50 µm,

should be provided. According to the characteristics of raw water, the pre-treatment could

be required; apply Nobel technical staff for proper suggestion.

•Run the line from the product water outlet fitting (U) to the storage tank, using pipes made

in PVC or other suitable materials, with size (Ø) equal or larger than the size of outlet

connection (U).

•Run the line from the drain fitting (S) to a floor drain of a proper size, using pipes made in

PVC or other suitable materials, with size (Ø) equal or larger than the size of concentrate

connection (S).

•The pre-arranged fittings for cleaning (R and R1) will be connected, only when required, to

the cleaning tank and/or to the drain. Indeed, it allows the recirculation (or the drain) of

permeate and concentrate during these operation.

FOR SYSTEMS ARRANGED FOR FLUSHING WITH RO PROCESSED WATER ONLY :

•Connect the intake of RO processed water for flushing to the inlet fitting (IF) using pipes

made in PVC or other suitable materials, with size (Ø) equal or larger than the size of the

fitting (IF).

THE OUTLET PRODUCT WATER LINE MUST BE COMPLETELY FREE OF

ANY SHRINKAGE - THROTTLING - SHUT OFF VALVE

4.6. Pneumatic connections

•connect the pilot air fitting (A) placed on the solenoid valves group to a service air supply

line, equipped with pressure reducer, dehumidifier filter, shut-off valve.

The air must be dry, oil-free and with pressure between 5 and 7 bar.

4.7. Electrical wiring connections

Run the electrical wiring connections to the terminal board of the control panel (QE), as

below explained. All the connections between control panel and to the equipment mounted on

the skid, have been already made in factory (see WIRING DIAGRAM).

•The power supply plant must be made according to the value of voltage, frequency and

adsorption, as stated at paragraph “TECHNICAL CHARACTERISTICS”.

•The size of the wires of the electrical power conductors must be selected according to the

max allowable current intensity.

•The power supply line must be protected by an automatic differential circuit breaker, with

adequate power and according to applicable law.

•It is recommended to use suitable fittings, for the wiring connection, in order not to modify

the protection grade of the control board.

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o RL o power supply 400V, 50 Hz (upon request 440 V, 60 Hz)

o SL o " " " " " " " "

o TL o " " " " " " " "

o NL o " " " " " " " "

ooGND

o U o high pressure pump P

o V o " " " "

o W o " " " "

ooGND

o - o Power supply to permeate flow sensor

o + o “ “ “ “ “

ooGND

o - o Power supply to concentrate flow sensor

o + o “ “ “ “ “

ooGND

o + o minimum pressure switch PC

o 7 o “ “ “ “

ooGND

o 4 o conductivity probe CC

o 5 o " " "

ooGND

o9o

micro-switch timer NO (connect on serial if more than 1, make a jumper if not present)

o 10 o " " " " " " " " "

o 9 o common to the levels LL - LH

o 11 o medium level LL (open without water)

o 12 o max. level LH (open without water)

o - o pilot solenoid valve EI of the inlet valve VI

o 17 o " " " " " " " "

ooGND

o - o flushing solenoid valve EF (+ pilot solenoid valve EIF, if installed)

o 18 o " " " " " " " " "

ooGND

o 20 o free-voltage contact for remote alarm (C)

o 21 o " " " " " (NC)

o 22 o " " " " " (NA)

Whether only one ON-OFF level wire connection is available, connect it between the terminals

12 and 9 of the max level (the contact is open when there is no water, its closing stops the RO

high-pressure pump); leave the terminal 11 of the medium level free of any connection.

Whether more than one micro-switch is available (for example for interface with filter and

softener), their NO contacts must be connected on serial.

At the shipment, the terminals of micro-switches are connected by a jumper. The jumper

must be removed when the connections of micro-switches are used.

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5. Control panel

The control panel QE, handled by a logical programmer, controls the automatic and/or

manual working of the whole system.

For safety sake, when the high pressure pump P is on working, the inlet valve VI is open

(except during the flushing with RO processed water, during which the valve VIF is open), both

automatic and manual working as well. Hence, in this manual, any time the working of the high

pressure pump P is mentioned, it is understood that the inlet valve VI is open,

The starting of the pump is some seconds delayed than the opening of the valve VI.

5.1. Commands and visualizations (see diagram FRONT OF CONTROL PANEL)

The instruments available on the control panel are :

CONDUCTIVITY-METER the instrument continuously shows the conductivity of the treated

water (permeate).

When the conductivity of treated water overpasses the set-point value

(set-point K2), the high conductivity alarm is switched on.

LOGICAL

PROGRAMMER LOGO

the programmer that handles the logical working of the unit.

Its display shows the status of the inputs and outputs and allows to

modify the pre-set time of the used timers (see special chapter for

details).

The commands available on the front of control panel QE are :

"EMERGENCY STOP " It is placed on the top side of the control panel; pushing the button

any working of the system is blocked. To re-start the system, turn

counter clock-wise the button, for approx. 30º.

SELECTOR "MODE"

“AUT-RESET-MAN”

it controls the working of the system

on “AUT” the RO system supplies water according to the levels mounted inside

the storage tank of permeate. The correct working requires also the

external enabling signal (on terminals 9 and 10, timer or jumper) and

the one of the minimum pressure switch PC

on “MAN” the pump Pworks and valve VI opens, regardless of any enabling

signals

on “RESET” the blocks caused by the alarms are cancelled; the system is not

running.

BUTTON "FLUSHING" It is connected to the working of the flushing solenoid valve EF (and

VIF if installed). When the button is pressed, the valves open; when

the button is released, the valves close.

The synoptical panel shows graphically the installed items; when one of them is activated,

the correspondent led is ON. For the pressure switch, when its led is ON, it means that the

pressure overpasses the adjusted set-point.

For the solenoid valve EF, when its led is ON, it is also understood that the valve VIF, if

installed, is open.

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