Smeg WO-02 Instruction manual

WO-02
Water treatment equipment for HORECA dishwasher applications.
SER AL NO.: __________________
PART NUMBER: __________________
Note: _____________________________________________
MANUAL
use and maintenance

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NDEX
1. GENERAL INFORMATIONS ....................................................................................................................................3
1.1. MANUFACTURER / ASSISTANCE ............................................................................................. 3
1.2. CERTIFICATION ................................................................................................................ 3
1.3. PURPOSE OF THE MANUAL AND ITS CONTENTS ........................................................................... 3
1.4 CARE AND STORAGE OF THE MANUAL ...................................................................................... 3
1.5. IMPORTANT SYMBOLS TO REMEMBER ....................................................................................... 3
2. CHARACTERISTICS OF THE DEVICE....................................................................................................................4
2.1. RECOMMENDED USE ........................................................................................................... 4
2.2. SCHEMATIC REPRESENTATION ............................................................................................... 4
2.3 COMPONENTS .................................................................................................................. 5
2.4 DESCRIPTION .................................................................................................................. 5
2.5 TECHNICAL SPECIFICATIONS ................................................................................................. 6
2.5 GENERAL DIMENSIONS ........................................................................................................ 7
2.6 INTERNAL LAYOUT ............................................................................................................ 7
3. INSTALLATION ........................................................................................................................................................8
3.1 DISHWASHER REAR SIDE INSTALLATION ....................................................................................
3.2 DRAIN FITTING EN1717 .......................................................................................................
3.3 EXTERNAL PREFILTER INSTALLATION ...................................................................................... 10
3.4 DRAIN CAPILLARY REPLACEMENT .......................................................................................... 11
4. FUNCTIONING........................................................................................................................................................12
4.1 FIRST START-UP .............................................................................................................. 12
4.2 NORMAL USE .................................................................................................................. 12
4.3 LOW PRESSURE ALARM ...................................................................................................... 12
4.4 LEACKAGE ALARM ............................................................................................................ 12
4.5 INACTIVITY .................................................................................................................... 12
5. ENDUSER ORDINARY MAINTENANCE................................................................................................................13
5.1 FILTER REPLACEMENT ....................................................................................................... 13
6. PROFESSIONAL EXTRAORDINARY MAINTENANCE.........................................................................................14
6.1. REQUIRED TRAINING FOR MAINTENANCE PERSONNEL ................................................................... 14
6.2. RESPONSIBILITIES OF MAINTENANCE PERSONNEL ........................................................................ 14
6.3 POWER CORD / POWER PLUG REPLACEMENT ............................................................................ 14
6.4 CHECK/REPLACEMENT OF OSMOTIC MEMBRANES ........................................................................ 15
6.5 PUMP REPLACEMENT ........................................................................................................ 16
6.6 CLEANING SOLENOID VALVE FILTER / SOLENOID VALVE REPLACEMENT .............................................. 17
6.7 MACHINE SANITATION ....................................................................................................... 18
6.8 FUSE REPLACEMENT / ELECTRONIC BOARD REPLACEMENT ............................................................. 1
6. VERIFICATION OF THE PRESSURE SETTINGS .............................................................................. 20
7 TROUBLESHOOTING ............................................................................................................................................21
ATTACHMENT I – CE LABEL .........................................................................................................................................24
ATTACHMENT II – MAINTENANCE LOG.......................................................................................................................24

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1. GENERAL NFORMAT ONS
1.1. MANUFACTURER / ASSISTANCE
BUILDER
ASSISTENCE
SMEG S
.p.
A
.
Via L. da Vinci, 4
42016, Guastalla
(RE) Italy
Personal Data of the Retail Seller
1.2. CERTIFICATION
WO-02 was manufactured in compliance with the following EU Directives:
Machines 2006 / 42 / EC
Low Voltage 2006 / 95 / EC
Electromagnetic Compliance 2004 / 108 / EC
The machine WO-02 respects the following technical regulations:
EN60 5-1:2004: Household and similar electrical appliances – Safety, Part 1: General requirements.
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.
WARN NG
This user’s manual can be utilized by both technical and maintenance personnel.
All users and technicians are required to thoroughly read this manual before
installing or operating this device.
n accordance with this manual, the user should never perform any unauthorized
maintenance exclusively reserved for qualified technicians and maintenance
personnel, otherwise the guarantee will be rendered null and void.
WARN NG
All extraordinary maintenance operations must be done by qualified personell 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 so that it is protected from eventual damage or destruction.
1.5. IMPORTANT SYMBOLS TO REMEMBER
GENERAL WARN NGS
This symbol ndicates warnings or key information regarding the operation of this
device. Please pay close attention whenever you see this symbol.
This sy
mbol 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.
ND CAT ONS OF DANGER
This symbol ndicates General cautions; risk to the operator.
This symbol ndicates danger of electrical shock or electrocution.
RESTR CT ONS
This symbol indicates general restrictions.

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2. CHARACTER ST CS OF THE DEV CE
2.1. RECOMMENDED USE
WO-02 is an equipment designed for dish/glass wash machine water treatment. It is able to modify
organoleptic and chemical characteristics of potable water, reducing saline content.
The machine can preserve water from possible problems that can occur below the aqueducts, such as
infiltrations due to work on the network or breakage, and also from the consequences of keeping water in
decantation basins.
WO-02 is used to supply treated water to undercounter dishwasher and glasswasher machines with
atmospheric boiler “break tank” or similar.
If used with a dishwasher without break tank and rinsing pump, an external pressure tank of at least 18
liter must be installed between the osmosis equipment and the dishwasher; air precharge must be approx
2.5 bar.
The normal production of the machine is approx 100 liters/hour, with a dishwasher with “break tank”.
If an external pressure tank is installed, the normal production reduces to about 70 liters/hour, depending
on pressure tank backpressure.
ATTENT ON
The device is not intended to be
used by people (including children) whose physical,
sensory or mental disabilities are reduced, or lack of experience or knowledge, unless
they have been granted through the intermediary of a person responsible for their safety,
supervision or instruction concerning the use of the device. Children should be supervised
to ensure they do not play with the appliance.
ATTENT ON
The water requirements of the dishwasher installed after the WO-02 must respect the
maximum performance of the osmosis equipment.
All components of the dish/glass washmachine in contact with water must be compatible
with osmosis trated water.
It is forbidden to use brass; use only plastic parts and stainless steel parts.
Basins and tanks in AISI 304 must be without weldings as possible.
It is reccomended the use of parts only in plastic or in stainless steel AISI 316.
The company SMEG is not responsible of any demage or injury to things or people if
these instructions are not respected.
ATTENT ON
WO-02 is not a water purifier.
Using WO-02 to condition water that is not drinkable is ABSOLUTELY PROHIBITED.
2.2. SCHEMATIC REPRESENTATION
SCHEMAT C REPRESENTAT ON

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2.3 COMPONENTS
2.3. 1 Prefilter
The device is supplied with an external PROFINE M BLU carbon block cartridge to ensure chlorine removal
and filtration of raw water.
2.3.2 Pump with motor 150W
To increase operating water pressure, it is installed inside the machine a pump mini 200 l/h, leaded by an
asynchronous motor.
2.3.3 Membrane
The membranes are the core of the machine; four membranes Filmtec TW30 1812 100gpd are installed.
2.4 DESCRIPTION
There are three external hydraulic connections on the back of the device, respectively, for the inlet water
¾”G, the outlet water ¾”G to the dish/washmachine and the line used for drain off (6mm diameter).
On the rearside of the machine, there is also the power cord, and air vents.
It is necessary to install an external prefilter PROfine BLU carbon block medium to ensure chlorine
removal and filteration of raw water.
The water flows then through the quick connection carbon filter. The carbon block filter facilitates the
elimination of the unpleasant chlorine taste, without compromising the desirable mineral properties of
the water. These activated carbon filters can also absorb potential trace organic micro pollutants, various
chemicals  organic and inorganic (i.e. chlorine composites), chlorine residue used to disinfect water,
haloforms, pesticides, surface-active agents.
From the connection to the main plumbing network, the water arrives to the inlet solenoid valve, and
with a T fitting to the min pressure switch and then to the pump.
The min pressure switch prevents the pump to run dry. In chase of low pressure, alarm is acustic signalled
and then the machine makes automatic restart after one minute.
When consecutives low pressure alarm occures, the restart delay automatically increases.
Water is then pumped at high pressure by the brass vane pump connected to the liquid cooled motor. The
water arrives at high pressure to the vessels contain the reverse osmosis membranes. The water
permeates the layer flowing into the collection tubes, and then it is directed to the main tube of the
membrane, wrapped in various layers. The permeate yield comes from the main tube of the membrane
and is sent directly to the outlet.
For automatic start/stop of the machine, a check valve and a max pressure switch are installed in the
permeate line, before outlet connection.
On the bottom and on the right side of the machine, there are two leakage probes (for vertical and
horizontal operating); if leakage occurs the machine stops automatically and makes acustic alarm.
The drain must be connected to the drain siphon with the backflow preventer fitting in the package.
The drain capillary is used to set the drain flow and recovery ratio.

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WARN NG
The overall water quality depends on a number of variables: the concentration of saline
properties in the water, along with other retained elements, the temperature, water
pressure, and the total solubility of salt. The water quality may also vary according to the
kinds of salts or elements found in the local water source.
The treatment of water coming from a source that is particularly polluted with high
concentrations of impurities can cause the blockage of the membranes of the filters
and/or impede the overall water flow.
This device CANNOT be used as a substitute for a government approved desalinization and
anti-bacteriological plant.
2.5 TECHNICAL SPECIFICATIONS
WO
-
02
TECHNICAL SPE
CIFICATIONS
Height x Width x Depth
(mm)
424x472x120
Weight (kg)
16
Approved Decibel Level under normal operating conditions
(dB
(A)) <70
Membranes (nr. 4)
Filmtec TW30 1812 100GPD
Carbon filter
(external)
PRO:fine BLU medium
WATER SUPPLY SPECIFICAT
IONS
Water type
Potabile
Minimum temperature (°C)
5
Maximum temperature (°C)
35
Min
imum
inlet flow rate (l/h)
300
Maximum inlet pressure
600 kpa
Minimum inlet pressure
100 kpa
ENVIRONMENT SPECIFICATIONS
Maximum relative humidity (%)
0
Minimum ext
ernal temperature (°C)
3
Maximum external temperature (°C)
40
POWER SUPPLY SPECIFICATIONS
Power supply type
SINGLE PHASE + GROUND
Voltage (V)
230
Frequency (Hz)
50
Adsorbed current (A)
1.5
A
Power (W)
150W
Control board fuse type
T3.15A
PERMEATE WA
TER SPECIFICATIONS
Maximum flowrate at 15° C (l/h)
Approx 100
Maximum flowrate with 3 bar backpressure at 15°C (l/h)
Approx
70
Recovery (%)
See table
CAPACITY AND SUBSTITUTION FREQUENCY
Carbon filter PRO:fine BLUE Medium
200
hours
Reverse osmosis mem
branes
Max 3
years
Vane pump and solenoid valve
2000 hours
Hardness
(°dH)
35
White 30±5%
22
Black 40±5% White 30±5%
6
Blue 55±5% Black 40±5%
100
700
1200
Conductivity
µS
Machine must not be installed with water> 1200 mS or> 35 ° dH.

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2
7
4
5
6
1
3
9
11
10
8
WARN NG
Any use of this device, which has not been stipulated in this manual, will constitute
IMPROPER USE, thereby rendering the guarantee null and void. The manufacture WILL
NOT be liable for any damages caused by the IMPROPER USE of this device, due to
negligence, failure to follow the manual, or permitting unauthorized maintenance
personnel to tamper with machine.
2.6 GENERAL DIMENSIONS
120
424
472
472
2.7 INTERNAL LAYOUT
Item:
1. Pump 200l/h
2. Motor 150W
3. Motor cover
4. Membrane housing 1812 100 gpd
5. Min pressure switch
6. Max pressure switch
7. Control board
8. Power supply
. Inlet solenoid valve
10. Drain 6mm
11. Permeate outlet ¾”

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44 1
5
2
3
3. NSTALLAT ON
The installation of the WO-02 must be done in a fresh, dry and good aerated place.
WARN NG
The installation of the
WO
-
02
must be performed by
qualified personnel in accordance
with applicable laws and standards. For the installation, it necessary to place a inlet
water valve (to close water supply during maintenance jobs), a check valve, sample
valves on inlet and outlet and a power socket.
Please avoid exposure to sudden changes in temperature, thereby causing internal
condensation to form and damage electronic parts.
NSTALLAT ON CHECK L ST
The EU approved ground cable of the power su
pply must be connected to the device.
The power supply cable must be compatible with the device as indicated on the required
tags and labels affixed to the rear of the machine.
The electrical cable of the circuit must not be less than 1 mm in diameter
The voltage of the device must comply with the standards of the local area or country
(power surges must be limited to no more than 10%)
The machine can be installed
horizontal or vertical position.
n vertical position, display and hydraulic connections must lay on the upper side.
n the capillary bag, four adhesive bumpers are supplied.
NSTALLAT ON
1. Water inlet
2. Power supply
3. Permeate outlet
4. Air vents
5. Drain
6. Quick connection head
7. Fitting 10x3/4”F
8. Stem elbow 10mm
. Quick connection cartridge
10. Pipe PE 10x7mm
6
78
8
8
7
1
8
9
10
10

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3.1 DISHWASHER REAR SIDE INSTALLATION
403
420
1
1
1
1
It is possible to fix the equipment on the rear side of the dishwasher, with four screws
M5, preassembled on the base of the metal case.
For the installation on the rear side of the dishwasher, a special “rear side kit”
must be ordered separately.
3.2 DRAIN FITTING EN1717
Install the drain back flow preventer fitting EN1717 in a standard drain pipe diam.
50mm with a quick connection.
Assembly the famale fitting F 6x1/2” on the drain fitting and connect the pipe 6mm.
The pipe 6mm must not be bended anoumusly or have restrictions that can reduce the
flowrate.
If drain is clogge, water comes out through the lateral holes.
Item
1. Quick connection 6 mm
2. Famale fitting 6x1/2
3. Drain fitting EN1717
4. Connection for famale d.50 drain pipe
Item
:
1. Screws M5 equipment fixing
2
1
3
4

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3.3 EXTERNAL PREFILTER INSTALLATION
Wall bracket installation
Before the marking and the final assembly, check that the position allows the passing of the hand for an
easy disassembly of the cartridge.
1. Check the mounting sense more convenient for the installation, to be carried out by orienting the
entry to left or right as needed
2. The inlet and outlet fittings must be positioned in any case at 0 ° to the bracket.
3. With the supplied screws(36) mount the head(28) on the wall support by tightening the screws.
4. Identify the appropriate place on the wall for installation of the wall bracket, ensuring there is
enough room for mounting / dismounting of the cartridge.
5. Draw with a pencil the holes positions (25) on the wall and drill with d. 8mm bricks drill; insert the
wall plugs (34), then fix the bracket with the supplied screws (35).
6. Joint the entry and exit pipes in the direction shown by the arrow on the head; the 6mm pipes must
be perpendicularly cut and insert in the quick-connect coupling of the head until the base.
tem:
25. Holes for head fixing
26. Head entry
27. Head exit
28. Head
2 . Cartridge
34. Wall plugs
35. Wall screws
36. Head-bracket fixing screws
OK
NO
NO
NO
342 25
46
60
386,5
62
110,8
475,8