Smeg WO-20 Instruction manual

WO-20
Potable water treatment osmosis system for HO.RE.CA. applications.
MANUAL
use and maintenance

7596040 –MANUALE WO-20 EN 21052018 REV.1
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EU declaration of conformity
1. Equipment/Product Model
WO-20
Potable water treatment osmosis system for HO.RE.CA. applications.
2. Name and address of the manufacturer or his authorized representative:
Reg. Imp. PD –352571
C.C.I.A.A. di Padova
3. This declaration of conformity is issued under the sole responsibility of the manufacturer.
4. Aim of the declaration:
Production year 2018 and subsequent
5. The object of the declaration described above is in conformity with the relevant Union
harmonization legislation
- 2006/42/EU (machines)
- 2014/30/EU (EMC)
- 2014/35/EU (LVD)
- 2011/65/EU (RHOS2)
6. References to the relevant harmonized standards used, including the date of the rules, or
reference to other technical specifications in relation to which conformity is declared,
including the date of the specifications:
EN 62233:2008/AC:2010
EN 55014-1:2006/A1:2009
EN 55014-1:2006/A2:2011
EN 55014-2:2015
EN 61000-3-3:2013
EN 60335-1:2012/AC:2014
EN 60335-2-40:2003/A13:2012/AC:2013
22/05/2018 SMEG S.p.A.

7596040 –MANUALE WO-20 EN 21052018 REV.1
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INDICE
1GENERAL INFORMATIONS.......................................................................................................................................- 5 -
1.1 MANUFACTURER / ASSISTANCE.......................................................................................... - 5 -
1.2CERTIFICATION ............................................................................................................ - 5 -
1.3 PURPOSE OF THE MANUAL AND ITS CONTENTS........................................................................ - 5 -
1.4 CARE AND STORAGE OF THE MANUAL .................................................................................. - 5 -
1.5 IMPORTANT SYMBOLS TO REMEMBER ................................................................................... - 5 -
2CHARACTERISTICS OF THE DEVICE......................................................................................................................- 6 -
2.1RECOMMENDED USE ....................................................................................................... - 6 -
2.2 FORBIDDEN USE............................................................................................................ - 6 -
2.3 DESCRIPTION............................................................................................................... - 7 -
2.4 EXTERNAL DIMENSIONS ................................................................................................... - 7 -
2.5 TECHNICAL SPECIFICATIONS ............................................................................................. - 8 -
3INSTALLATION ..........................................................................................................................................................- 9 -
3.1 EN1717 DRAIN ADAPTER INSTALLATION ................................................................................ - 9 -
3.2 EXCHANGE OF DRAIN CAPILLARY....................................................................................... - 10 -
4FUNCTIONING..........................................................................................................................................................- 11 -
4.1 FIRST START-UP .......................................................................................................... - 11 -
4.2 NORMAL USE .............................................................................................................. - 11 -
4.3 MIX - BY-PASS............................................................................................................. - 11 -
4.5 LOW PRESSURE ALARM .................................................................................................. - 11 -
4.6 LEACKAGE ALARM ........................................................................................................ - 11 -
4.7 INACTIVITY ................................................................................................................ - 11 -
4.8 ELECTRONIC BOARD FUNCTIONING .................................................................................... - 12 -
4.9 CONFIGURATION MENU .................................................................................................. - 13 -
5ORDINARY MAINTENANCE TO BE DONE BY USER............................................................................................- 14 -
5.1 TASKS OF MAINTENANCE PERSONNEL.................................................................................. - 14 -
6EXTRAORDINARY MAINTENANCE TO BE DONE QUALIFIED PERSONNEL .....................................................- 15 -
6.1 TASKS OF MAINTENANCE PERSONNEL.................................................................................. - 15 -
6.2 PRE-FILTER REPLACEMENT .............................................................................................. - 16 -
6.3 PRECHARGE OF EXPANSION TANK...................................................................................... - 17 -
6.4 MACHINE SANITATION ................................................................................................... - 18 -
7TROUBLESHOOTING ..................................................................................................................................................19
8DISPOSAL ....................................................................................................................................................................21
ANNEX I –EU LABEL............................................................................................................................................................21
ANNEX II - CONNECTIONS OF THE ELECTRONIC BOARD...............................................................................................22
ANNEX III –MAINTENANCE LOG.........................................................................................................................................23

7596040 –MANUALE WO-20 EN 21052018 REV.1
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SAFETY WARNINGS
Children must not play with the equipment.
In case of a water leak, disconnect the power plug
and close the water inlet valve, then contact the
service centre.
You must not open the machine cover.
For all operations of installation, extraordinary
maintenance, break down researches and spare
parts requests, please contact the manufacturer or
a qualified service centre.
Read carefully the instructions for installation,
operation and maintenance before installing this
equipment.
Improper installation, alterations or modifications
can cause damage to people and property.
Intentional damage or from negligence, or deriving
from the non-compliance with rules and
instructions, or due to incorrect connections or
unauthorized tampering, invalidate any warranty
or liability of the manufacturer.

7596040 –MANUALE WO-20 EN 21052018 REV.1
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1 GENERAL INFORMATIONS
1.1 MANUFACTURER / ASSISTANCE
BUILDER
ASSISTENCE
C.C.I.A.A. : PD352571 Registration
Personal Data of the Retail Seller
1.2 CERTIFICATION
The system was manufactured in compliance with the following EU Directives:
Machines 2006/42/EU
Low Voltage 2014/35/EU
Electromagnetic Compliance 2014/30/EU
RoHS2 2011/65/EU
1.3 PURPOSE OF THE MANUAL AND ITS CONTENTS
This manual was written in order to supply the user with all the necessary information needed to facilitate
the autonomous and safe operation of this device. The manual contains information that is critical to the
operation and regular maintenance of the machine.
WARNING
This manual is addressed both to the users, for the parties expressly stated, and to the
technicians qualified for maintenance of the machine.
Before carrying out any work on the machine, both users and installers and qualified
technicians should read carefully the instructions contained in this manual.
Users can only perform the operations described in this manual and they have not to perform
tasks reserved to maintenance or qualified technician.
WARNING
All extraordinary maintenance operations must be done by qualified personnel only.
1.4 CARE AND STORAGE OF THE MANUAL
The instruction manual is an integral part of this device and must be kept nearby at all times, and stored
inside the proper container and, above all, protected from liquids and anything else that could compromise
its readability. The manual contains the declaration of conformity that can not be copy. In case of loss or
damage, a copy can rquired writing and quoting the serial number.
1.5 IMPORTANT SYMBOLS TO REMEMBER
GENERAL WARNINGS
This symbol Indicates warnings or button information regarding the operation of this device.
Please pay close attention whenever you see this symbol.
This symbol Indicates that specialized/portable equipment may be required to adjust or
repair the components of the device.
This symbol Indicates that a visual or in-depth inspection, etc. of the device may be required.
INDICATIONS OF DANGER
This symbol Indicates General cautions; risk to the operator.
This symbol Indicates danger of electrical shock or electrocution.
RESTRICTIONS
This symbol indicates general restrictions.

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2 CHARACTERISTICS OF THE DEVICE
2.1 RECOMMENDED USE
WO-20 is equipment designed for dish/glass wash machine water treatment. It is able to modify organoleptic
and chemical characteristics of potable water, reducing saline content.
2.2 FORBIDDEN USE
ATTENZIONE
Use for drinking purposes:
IT IS STRICTLY FORBIDDEN to use the equipment for the treatment of non-drinking water.
IT IS STRICTLY FORBIDDEN to use the equipment in the absence of periodic maintenance.
IT IS STRICTLY FORBIDDEN to use the equipment in hygienic conditions or environments
that aren't in compliance with those indicated in this manual.
IT IS STRICTLY FORBIDDEN to supply the equipment with waste water, sea water or water
in chemical, physical and biological that do not meet the potability limits. (Industrial
waste or chemical processing).
The device can be used by children aged less than 8 years, and by people with reduced
physical, sensory or mental capabilities, or lack of experience or knowledge, only under
surveillance or after their having received instructions about safe use and understood of
the dangers inherent in it.

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2.3 DESCRIPTION
N°
DESCRIPTION
GENERAL REPRESENTATION
1
IN ¾”M
550
150 490
1
3
5
2
4
6
7
1
2
3
1
2
8
2
DRAIN PIPE 3/8”
3
OUT ¾”M
4
POWER 230V-50HZ
5
CONDITIONING VALVE
6
MIX –BY-PASS VALVE
7
DRAIN CAPILLARIES
8
TANK PRECHARGE = 0,1
MPa
The equipment shows in the rear the hydraulic connections for inlet of the water to be treated, the permeate
outlet, the concentrate outlet and the conditioning valve. In the front it shows the manual by-pass valve and
drain capillaries.
-WORKING LOGIC:
From the water inlet, the water first goes through a prefiltration system to protect the membrane and, put
under pressure by the pump, is presurated in the vessel containing the membrane.The permeated water
produced is sent to a pressurized accumulation tank.
- TREATMENTS:
The prefiltration is necessary to retain the solid impurities and chemical substances that could damage the
membrane. The reverse osmosis phase is the second and most important process that takes place inside the
machine and that, through the use of special membranes, reduces by 90-95% the salts present in the raw
water.
2.4 EXTERNAL DIMENSIONS
550
150 490
1
3
5
2
4
6
7
1
2
3
1
2
The maximum dimensions do not include hydraulic / electrical connections.

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2.5 TECHNICAL SPECIFICATIONS
WO-20
TECHNICAL SPECIFICATIONS
Height x Width x Depth (mm)
150x490x550
Weight (kg)
25
Approved Decibel Level under normal operating conditions (db)
<70
Membranes (nr. 2)
TWG3A1-1100410
Activated carbon pre-filtration
Y21408BSG
Tank pre-charge (MPa)
0.1
WATER SUPPLY SPECIFICATIONS
Water type
Drinkable
Minimum water temperature (°C)
5
Maximum water temperature (°C)
30
Minimum inlet flow rate (l/h)
600
Maximum inlet pressure (MPa)
0.6
Minimun inlet pressure (MPa)**
0.15
POWER SUPPLY SPECIFICATIONS
Power supply type
MONOPHASE + GROUND
Nominal power (V)
230
Frequency (Hz)
50
Absorbed current (A)
2.4
Power (W)
690
Fuse type (electronic board)
F3.15A
PERMEATE WATER SPECIFICATIONS
Output maximum flow rate
c.a 120
Recovery percentage (%)
Vedi §3.2
WARNING
* The percentage of dissolved salts and other rejected elements is influenced by the quality of
the water, the temperature, the pressure and the totality of dissolved salts and it is different
depending on the types of salts or elements.
** Dynamic: pressure measured in the inlet with the RO system in operation.
WARNING
The quality of the water produced (permeate) is influenced by the quality of the raw water,
the temperature, the pressure and the totality of dissolved salts.
The treatment of particularly turbid water in presence of organic substances or in suspension
can cause the early clogging of prefilters and / or membranes with and loss of water flow
rate and quality.
WARNING
The use of the machine outside the limits indicated is considered IMPROPER USE.

7596040 –MANUALE WO-20 EN 21052018 REV.1
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da/from
0.5
fino a/to
3
Rev/Rev Descrizione Modifiche/Change description Emissione/Emission Approvato/Approval
--
Il presente disegno non può essere utilizzato né riprodotto o reso noto a terzi senza autorizzazione della Think Water
This draw cannot be used nor reproduced or given to third parts without the authorisation fromThink Water
Scala/Scale
Tolleraza Generale/
General Tollerance
Denominazione/Product name
Progettista/Designer Verifica/Confirm
Codice prodotto/ Product code Applicazione/Application
N° disegno/N°drawing
• Esecutivo/
Executive
• Sperimentale/
Experimental
Data/Date N° tavola/N° table
Materiale/Material
1:2
-
2010 -media 1 di 1
negrin -
Raggi non quotati/
Rays not quoted
±0.05
Designazione/ Specification
media
Denominazione/ Name
f fine
m±0.2
±0.1
±0.1±0.1
±0.05
±0.3 ±0.5
±0.15 ±0.2
±0.8 ±1.2
±0.3 ±0.5
da/from
0.5
fino a /to
3
±0.2
1)
±0.5 ±1
1) Per le dimensioni nominali minori di 0.5 [mm], gli scostamenti devono essere indicati vicino alle dimensioni nominali
1) If the nominal dimension is less 0.5 [mm] the limit of tollerance must be written near the nominal dimension
Classe di tolleranza/
Tolerance class Tab. 1: Scostamenti limite [mm] ammessi per dimensioni lineari,
esclusi smussi e raccordi per eliminazione di spigoli (vedi Tab. 2)/
Limit of tolerance [mm] for linear dimension, without groove and
half-round fillet to erase edge
1)
Tab. 3: Scostamenti limite per dimensioni
angolari in funzione dei campi di lunghezza
[mm] del lato più corto dell'angolo/ Limit of
tolerance for angle, reference to the shorter
side of the angle [mm]
±1° ±0°30' ±0°20' ±0°10' ±0°5'
da/from
3
fino a/to
6
da/from
6
fino a/to
30
da/from
30
fino a/to
120
da/from
120
fino a/to
400
da/from
400
fino a/to
1000
da/from
1000
fino a/to
2000
da/from
3
fino a /to
6
oltre/over
6
Tab. 2: Scostamenti limite [mm] per
smussi e raccordi per eliminazione di
spigoli/ Limit of tolerance [mm] for groove
and half-round fillet to erase edge
da/from
0
fino a /to
10
da/from
10
fino a /to
50
da/from
50
fino a /to
120
da/from
120
fino a /to
400
oltre/over
4000
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-- --
- -
-
A3
UNI EN ISO 22768
1
2
3
3 INSTALLATION
The installation must be carried out in a cool, dry and well ventilated place, taking care to protect the
equipment from the action of frost and / or heating bodies and the direct action of the sun's rays.
Avoid subjecting the machine to excessive thermal changes that could create internal condensation that can
damage the electronic part.
WARNING
The installation must be carried out by specialized personnel in possession of the
requisites necessary to give the installation declaration in accordance with the law.
Put an upstream tap to exclude the equipment from the water system in case of
maintenance interventions.
If it is required to put a non-return valve in accordance with DIN EN 1717: 2000 on the
water inlet (min. grade 2).
Provide water sample points upstream and downstream of the equipment.
Provide a 16A power outlet with adequate protection (see §2.5).
If required by the local regulations the application of the DIN1714 standard, put an anti-
siphon.
Use new compliant washing tubes in compliance with EN61770 with diameter no less than
DN10.
Do not reuse old or worn pipes.
CHECKS TO DO BEFORE INSTALLATION
Presence and efficiency of the grounding wire of the power line.
Compatibility of power line with the electrical specifications indicated on the plate on
the back of the machine.
Power circuit electric cables with a cross-section of more than 0.75 mmq.
Network voltage stability (power surges less than 10%).
3.1 EN1717 DRAIN ADAPTER INSTALLATION
The equipment has a drain funnel, that is a device for the protection from pollution of drinking water in
plumbing systems and is designed to prevent backflow pollution, in compliance with the European standard
UNI EN 1717 of November 2002. This device prevents flowing back by venting all elements downstream of
drain valve into the atmosphere.
Install EN1717 drain adapter on a drain pipe with a diameter of 50 mm.
Tighten the straight F 3/8 "x1 / 2" fitting and connect the 3/8 "drain pipe.
The 3/8" drain pipe must not have any creases or narrowings that could reduce its flow
rate.
In case of drain clogging, water comes out from the side gaps.
1. FEMALE STRAIGHT 3/8”x1/2” FITTING
2. 3/8” PIPE
3. EN1717 DRAIN ADAPTER

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3.2 EXCHANGE OF DRAIN CAPILLARY
550
150 490
1
3
5
2
4
6
7
1
2
3
1
2
WARNING
After replacing the capillary, set the filter change time in the control unit (see § 4.8)
WARNING
BLUE CAPILLARY = recovery 25-30% a 15°C
BLACK CAPILLARY = recovery 20-25% a 15°C
WHITE CAPILLARY = recovery 15-20% a 15°C
The equipment must not be installed with inlet water> 1200 mS or> 35 ° dH.
Maximum recovery rates refer to incoming water at 25 ° F.
pH
8.5-9.5
BLACK
55h
WHITE
50h
SOFTENER NEEDED
7.5-8.5
BLUE
60h
WHITE
50h
60h
6.5-7.5
BLACK
55h
WHITE
50h
0-6 (°F)
6-15 (°F)
15-20 (°F)
20-25 (°F)
WARNING
Using a small screwdriver, remove the fixing o-rings (1) from clip(2) of fitting.
Push the fitting clip and remove the white capillary.
Insert the o-rings into the capillary to be installed in the machine.
Then insert the ends of the tube into the fittings.
Using a small screwdriver, put the fixing o-rings below the fitting clip.