Nobel RO 809 /E, RO 812 /E, RO 815 /E Instruction Manual
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 :
rev. 0
NOBEL S.r.l. via Monfalcone 8 - 20132 Milano - Italy
tel. +39 02 2827968 fax +39 02 2610839
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REVERSE OSMOSIS SYSTEMS RO 809-812-815/E - INSTRUCTIONS MANUAL
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
•
diagram DIMENSIONAL
•
diagram PLACING
•
diagram MEMBRANES WASHING
•
diagram FRONT OF CONTROL PANEL
•
wiring diagrams (4 pages)
•
NOBEL running-test certificate
•
components list
•
fitting-out table
•
special instructions filters FPA
•
special instructions flushing solenoid valve
•
special instructions pilot solenoid valves
•
special instructions automatic ball valves
•
special instructions 3-ways valves
•
special instructions high-pressure pump
•
special instructions conductimeter
•
special instruction flow meters
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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,
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).
CEI EN 60 204-1.
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
•
closed rooms
•
open space
•
transport
•
installation
t = ºC
5÷40 41÷104 5÷95%
5÷40 41÷104 5÷95%
5÷40 41÷104 5÷95%
5÷40 41÷104 5÷95%
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t = ºF
humidity rel.
without condensate
without condensate
without condensate
without condensate
notes
protect from sun-light and rain.
protect from sun-light and rain.
protect from sun-light and rain.
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REVERSE OSMOSIS SYSTEMS RO 809-812-815/E - INSTRUCTIONS MANUAL
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)
•
TDS of raw water
•
raw water temperature min÷max
•
raw water pressure min÷max
•
bacteria
•
free Chlorine
•
iron
•
silica
•
total hardness: according to the pre-treatment
ppm
ºC (°F) 10÷40 (50÷104)
bar (kPa) 1.0÷6.0 (100÷600)
ppm Cl
ppm Fe
ppm SiO
≤
3
≤
5000 *
nil
≤
0.1
≤
0.1
≤
10.0
2
* max. value : according to the construction material used
3.2. Technical characteristics
RO809 /E RO812 /E RO815 /E
•
TDS of treated water *
•
power supply
•
power
•
working pressure
•
max. allowable pressure
•
permeate t= 15 ºC
•
permeate t= 25 ºC
•
feed water min-max
•
dimensions
•
weight on service
•
vessel
•
membranes 8”
•
filtering elements
V/ph/Hz 400/3/50
kW 15 18.5 22
bar (kPa) approx. 16 (1600)
bar (kPa) 22 (2200)
l/h 9.000 ** 12.000 ** 15.000 **
l/h 10.800 ** 14.400 ** 18.000 **
l/h 14.400÷22.000 19.000÷29.000 24.000÷30.000
See dimensional diagram
kg 650 750 850
nº 2 on serial + 1 on parallel working
nº 9 12 15
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.
≤
3 % of raw water
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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, skidmounted.
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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REVERSE OSMOSIS SYSTEMS RO 809-812-815/E - INSTRUCTIONS MANUAL
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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REVERSE OSMOSIS SYSTEMS RO 809-812-815/E - INSTRUCTIONS MANUAL
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
The instruments available on the control panel are :
CONDUCTIVITY-METER
LOGICAL
PROGRAMMER LOGO
The commands available on the front of control panel QE are :
"EMERGENCY STOP "
SELECTOR "MODE"
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.
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).
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.
it controls the working of the system
(see diagram FRONT OF CONTROL PANEL)
“AUT-RESET-MAN”
on “AUT”
on “MAN”
on “RESET”
BUTTON "FLUSHING"
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
the pump P works and valve VI opens, regardless of any enabling
signals
the blocks caused by the alarms are cancelled; the system is not
running.
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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The visualizations available on the front of control panel QE are :
"SERVICE PUMP"
"NO EXTERNAL
ENABLING SIGNAL"
"NO WATER REQUIRED"
"MINIMUM PRESSURE
ALARM"
"PUMP ALARM"
"HIGH CONDUCTIVITY"
This visualization is always available; the total time of working of
the system (hours) is also visualized.
When this visualization appears, it indicates that the external
signal is enabling the working of the system is missing (clamps 9-
10).
When this visualization appears, it indicates that there is not any
request of water supplying by level switches.
The alarm acts when the inlet water pressure drops below 0.8 bar
(80 kPa), even if the cause of the pressure drop is a defect of the
inlet pilot solenoid valve EI.
The alarm, few seconds delayed, stops the working of the pump P
(if its selector is on "AUT" mode) but does not close the inlet valve
VI. The alarm and its block can be reset by turning the pump
mode selector on "RESET".
The alarm does not act if the selector mode of pump is on "MAN".
It is ON if the control does not receive the feed-back from pump P
contactor that the pump is ON, when this pump should be ON
(automatic command).
This alarm switches the block of the whole system; the alarm and
its block can be reset by turning the pump mode selector on
"RESET"..
the alarm is driven by the conductimeter COND when the
conductivity of treated water overpasses the set-point value. The
factory set is approx. 40 µS/cm. The alarm does not stop the
working of the unit.
The above listed alarm are joined in a free voltage contact for remote report.
5.2. Logical programmer
The logical programmer Siemens serie LOGO controls the logical working of the whole
system.
The display of the programmer shows the status of the logical input signals (marked as I), the
status of the logical output signals (marked as Q), current time and date, the several messages
enabled by the programme.
It is also possible to modify the setting of the entered numerical parameters (marked as B).
The numbering of the inputs and outputs is written on several lines, each of them is related
to ten (I1÷I9, I10÷I19 etc.)
By pushing the buttons or the display shows, alternatively, the visualizations of the
service : current time and date, inputs, outputs, merker (M, to be ignored), function buttons
(ESC+C..)
By pushing the buttons and the messages enabled by the programme are visualized.
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