Omniwash ST series User manual

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EN
INSTRUCTION MANUAL INDUSTRIAL DISHWASHER
INSTRUCTION MANUAL MOD. ST – FOR INSTALLER
- ENGLISH -
INDUSTRIAL GLASS AND DISHWASHER, UNDERCOUNTER
FOR EXCLUSIVE USE OF TECHNICALLY QUALIFIED PERSONNEL
Attention:
CAREFULLY READ THESE INSTRUCTIONS BEFORE PROCEEDING WITH THE INSTALLA-
TION AND OPERATION OF THE MACHINE.
ANY INSTALLATION, ALTERATION OR MODIFICATION THAT DOES NOT COMPLY WITH
THE STANDARDS SPECIFIED IN THIS MANUAL MAY CAUSE A MALFUNCTION OR DAMA-
GE TO THE MACHINE. THE WARRANTY WILL NOT BE CONSIDERED VALID AND THE
COMPANY WILL NOT BE LIABLE IN THE EVENT OF INCORRECT USE OR FOR ANY DA-
MAGE CAUSED BY NEGLIGENCE OR FAILURE TO FOLLOW THESE INSTRUCTIONS.
1.1 Installation:
1.2 Modifications:
1.3 Defects and malfunctions:
1.4 Repairs and Spare Parts:
The Ins alla ion of he machine mus be performed only by au horized personnel and
in compliance wi h he laws in force and hese ins ruc ions.
The manufac urer reserves he righ o modify he equipmen or he con en of ins ruc-
ions, wi hou prior no ice.
In he even of a defec or malfunc ion, he main elec rici y supply and wa er supply
MUST be disconnec ed no only from he machine bu even from he mains.
The produc mus be repaired only by au horized personnel, only using original spare
par s.
DEC ARATION OF CONFORMITY
EUROPEAN DIRECTIVE
2002/95/CE RoHS
SUMMARY
General information
Installation and start up
Electrical connection
Control panel
Commissioning
Adjusting the dosing
Troubleshooting
Page 02
Page 03
Page 05
Page 06
Page 07
Page 09
Page 11

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EN
INSTRUCTION MANUAL INDUSTRIAL DISHWASHER
GENERA INFORMATION
This dishwasher is in compliance wi h he provisions curren ly in force concerning safe y. Improper use can cause damage o
people and / or proper y. Before s ar ing he machine, carefully read hese ins ruc ions which con ain impor an informa ion for
ins alla ion and safe y. This manual is an in egral par of he dishwasher.
The dishwasher is only in ended for professional use. I is designed for washing dishes, glasses (cups, pla es, cups, bowls, rays,
cu lery) and in similar areas in he field of food and ca ering and complies wi h in erna ional elec rical and mechanical safe y and
according o EMC s andards.
Personnel opera ing he machine mus be regularly rained. Only rained personnel should use i . The dishwasher is no sui able
for use by minors and persons wi h reduced physical or sensory abili ies, nor by people wi h psychological problems. The use of
he machine by hese people is permi ed only under he supervision of a responsible person. Do no allow children play wi h he
dishwasher.
The manufac urer disclaims any liabili y for damage o persons or proper y caused by disregarding ins ruc ions of his bookle ,
by incorrec use or by in erference wi h any par of he dishwasher. Replace any defec ive par s only wi h new original par s.
This is he only way ha he manufac urer guaran ees he observance of safe y s andards and he correc opera ion of he ma-
chine.
Do no use he dishwasher as a ladder or o suppor people, objec s or animals. Leaning or si ing on he open door could cause i
ipping over and endangering people. Close he door o preven people ripping over i .
Before ins alling his appliance, check ha here are no damages visible. For your safe y, never opera e on a damaged machine.
The dishwasher mus be ins alled and repaired only by au horized personnel. Work performed incorrec ly can cause serious haz-
ards o he user, for which he manufac urer is no responsible.
Please ensure ha ear h connec ion as been done correc ly. In case of doub s, have he sys em checked by a qualified echnician.
The manufac urer is no liable for any damages due o he in errup ion or absence of ear h connec ion.
Follow ins alla ion ins ruc ions indica ed in he ins alla ion manual. Prior o an elec rical connec ion, i is necessary o compare
he echnical da a, vol age and frequency indica ed on he machine namepla e wi h hose indica ed on he mains supply. The
elec rical supply da a mus ma ch wi h he machine requiremen s o preven damage on he machine. In case of doub , have he
sys em checked by a qualified elec rician.
Do no connec he machine o he mains wi h ex ensions because hey do no guaran ee he sufficien safe y.
To perform he ins alla ion work or any main enance or repair, disconnec he machine from he mains. Opera e on he machine
only when he isola ing swi ch is off.
Be careful when handling chemical produc s! These produc s, such as de ergen and rinse aid, can be corrosive or irri an . Follow
he safe y regula ions on he packaging! Wear goggles and gloves! Carefully follow he safe y ins ruc ions provided by manufac-
urers. Do no inhale powder de ergen . Inges ing de ergen can cause burns o he mou h and hroa and lead o suffoca ion.
Af er any work done o he wa er supply, purge he wa er pipes o he dishwasher o avoid damaging or clogging he wa er inle
valve.
The machine and he surrounding area should no be sprayed direc ly wi h wa er.
Do no open he door when he machine is opera ing. There is a DANGER of splashing wi h ho wa er. If you open he door a
he end of he cycle , ake care no o ouch he hea ing elemen s loca ed in o he wash ank (danger of burns).

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EN
INSTRUCTION MANUAL INDUSTRIAL DISHWASHER
INSTA ATION AND START UP
The ins alla ion of he machine mus be carried ou only by qualified echnical personnel, in accordance wi h hese ins ruc ions
and in compliance wi h he regula ions in force.
♦ Remove he packing and he polys yrene from he machine and check for damages. In case of damages, hey mus be no i-
fied in wri ing o he carrier. The packaging componen s (plas ic bags, polys yrene foam, nails, e c.) mus be kep away
from children and pe s, as po en ial sources of danger. All ma erials used for packaging are compa ible wi h he environ-
men . They can be s ored safely or be disposed of o an appropria e was e disposal cen er. The componen s of wood and
cardboard can be disposed of in accordance wi h environmen al regula ions. When disposing of he machine, avoid dis-
persion in he environmen ; disman ling mus be in compliance wi h curren s andard in force.
♦ Check ha he place where he machine will be ins alled allows easy main enance. In par icular, check ha here is suffi-
cien ven ila ion and no hea ing sources in he surrounding area nearby he machine.
♦ The manufac urer disclaims any liabili y for any direc or indirec damage o people or proper y for no observing local
laws.
♦ Before ins alla ion of machine, check he surrounding area o check if any objec s could be damaged by s eam or splashes
of washing solu ion.
♦ Open he door and remove he following equipmen : baske , cu lery baske , inle and ou le ubes, rubber fee , user manual
and ins alla ion manual wi h a wiring diagram and cer ifica e of conformi y.
♦ Remove he four rubber fee and screw hem in he hreaded holes on he bo om of he machine. The dishwasher mus be
s eady and perfec ly levelled. Any irregulari ies in he floor can be compensa ed using he four adjus able fee .
♦ Connec he inle ube supplied wi h he machine o he solenoid valve. Check ha he gaske seal is ins alled.
♦ Connec he o her end of he wa er ube o he 3/4" BSP male fi ing valve. The valve mus be ins alled in an easily acces-
sible place. Make sure ha af er ins alling, he pipe is no crimped or crushed.
ATTENTION
The Electric system of the places where industrial dishwashers are installed must comply with national and local regula-
tions in force.

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EN
INSTRUCTION MANUAL INDUSTRIAL DISHWASHER
♦ The machine mus be connec ed o wa er mains in accordance wi h curren local regula ions in force. The wa er mus a
leas mee he requiremen s for drinking wa er provided by he regula ions. A high iron con en in he wa er can cause
rus on he dishes and in he machine. If he chloride con en in he wa er is grea er han 100mg / l, i will significan ly
increase he risk of corrosion. In cer ain areas he impuri ies of wa er can cause mechanical problems, so we sugges o
check he wa er quali y. The wa er inside he dishwasher is no drinkable.
♦ Verify ha he mains pressure is no less han 2 bar (200 kPa) or grea er han 4 bar (400 kPa).
♦ If he mains pressure is below 2 bar (200 kPa) a boos er pump should be ins alled.
♦ In case ha he mains pressure is grea er han 4 bar (400 kPa), i may be appropria e o ins all a wa er flow reducer
(which is provided wi h he machine) before he solenoid. Wi h a flow reducer inser ed, he maximum pressure is he
one indica ed on he inle pipe.
♦ Use clamps o connec he drain discharge pipe o he drain ou le . Make sure here are no kinks or bo lenecks in he
ubing before and af er ins alla ion; also check ha he drain poin is a an heigh lower han he ex ernal connec or of
he dishwasher.
♦ If he poin of discharge is loca ed he same heigh or higher han ha one of he bo om of he machine, a drain pump
should be ins alled.
ATTENTION
- The drain pipe must be fitted with a TRAP to avoid the possible return of unpleasant smell.
- The flow capacity of outflow of the waste system must be higher than that one of the waste system of the machine.
ATTENTION!
The dishwasher can be connected both to the cold water system (minimum temperature + 5 ° C) or to the hot water sys-
tem (maximum temperature +50 ° C) with appropriate loading pipe in compliance with the standard EN 61770. For con-
nection to the water mains use only new hoses. Old or used hoses must not be used.
A good wash result will be possible if the machine is filled with good water quality with a max hardness (calcium and
magnesium) of 3° to 5° dH (5° to 9°F). Above this value there could be lime scale deposits in the rinse jets, restricting the
water flow during rinsing and filling. This can lead deposits of lime scale or detergent remaining on the ware and so bad
wash result. In addition to this, lime scale will deposit on heating elements, shortening their life and increasing the
amount of energy required to heat the water. Therefore, the use of hard water in the machine will invalidate its war-
ranty. For best results, when installing the machine, if the hardness of water is not suitable, we suggest you to install a
water softner (if this is not already installed on the machine).
Do not use osmosis water and do not connect the machine to any appliances with osmosis system.
Soft water: up to 3°dH (5°F) Medium water: 3° to 5° dH (5° to 9° F) Hard water: above 5°dH (9°F)

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ATTENTION
The neutral wire must be correctly installed to the switch.
The connection of the power cable to the dishwasher is “Y” type.
The power cable can be replaced only by authorized and qualified personnel or by the manufacturer.
EN
INSTRUCTION MANUAL INDUSTRIAL DISHWASHER
E ECTRICA CONNECTION
♦ The machine mus be serviced wi h he values of power, vol age, frequency and pro ec ion as specified on he name
pla e.
♦ Verify ha he wiring ne work is designed wi h grounding device and ha an overvol age ca egory III isola ing swi ch
is ins alled (see EN 60204). This swi ch should be for he exclusive use of he dishwasher and posi ioned closed o he
machine, for an easy access.
♦ Disconnec power from he main swi ch by swi ching i “OFF”.
♦ Connec he power cable of he machine.
♦ Connec he ear h wire of he power cable o an efficien ear h. The elec rical safe y of he machine is ensured only by a
correc ear h connec ion.
♦ The equipmen mus also be included in an equipo en ial sys em whose effec iveness needs o be properly verified as
required by legisla ion in force. The connec ion is made by a screw marked wi h "EQUIPOTENTIAL" posi ioned a he
back of he frame.
ATTENTION
The electrical connection of the machine and of any additional equipment should be undertaken only by licensed and
qualified technicians in accordance with current regulations.
ATTENTION
The dishwasher is without tension, so in safe position only when the mains witch is turned off.

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EN
INSTRUCTION MANUAL INDUSTRIAL DISHWASHER
CONTRO PANE
1a
1 2 3
2a 3a 7a
8a
2 8a
7a
3a 2a
1a 3
1
DESCRIPTION N°
SWITCH 0/1 1
LIGHT 0/1 1a
WASH CYCLE SWITCH 2
WASH CYCLE LIGHT 2a
COLD RINSE SWITCH 3
COLD RINSE LIGHT 3a
BOILER ELEMENT LIGHT 7a
WASH ELEMENT LIGHT 8a

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ATTENTION
The fist operation of the dishwasher MUST be performed by authorized and qualified personnel who will also give in-
structions concerning the machine.
EN
INSTRUCTION MANUAL INDUSTRIAL DISHWASHER
OPERATION
♦ Open he wa er supply and swi ch on he main elec rical supply.
♦ Open he dishwasher door and check ha he wash arms are ins alled. Verify ha he suc ion fil er pump is fas ened in he
correc posi ion and ha he "overflow" is ins alled. Close he door.
♦ Pressing he swi ch 0/1 (1) o 1, he indica or ligh will urn on (1a) and he machine will make a check on he ligh s. Af er
ha , he machine will he se in o a s and-by mode ( he wash cycle ligh - 2a - blinks).
♦ Pressing he wash cycle bu on (2), he machine will s ar o fill wi h wa er. During he filling he cycle ligh will blink.
♦ When he filling of he machine is comple ed, all ligh s will be off, unless he 0/1 ligh .
♦ In his s a e he machine has full con rol over he ank and boiler empera ures, so if he empera ure of he boiler is lower
han he pre-se empera ure, he machine will ac iva e he boiler hea ing elemen , un il when he correc empera ure will
be reached. The boiler hea ing ligh (7a) will be on.
♦ Once he boiler has reached he se empera ure, he hea ing elemen will urn off and accordingly he corresponding ligh
(7a) will urn off. Then he machine will check he wash ank prese empera ure and in case i ’s lower , he hea ing ele-
men will ac iva e un il he correc wash empera ure is reached. The wash ank hea ing elemen s is indica ed by he corre-
sponding ligh on he con rol panel (8a). When bo h empera ures, boiler and ank, will be reached, bo h ligh s (7a and 8a)
will be off.
♦ When he machine is in he s a us of “full machine”, wash cycle or cold rinse can be s ar ed.
ATTENTION
The dishwasher usually has no detergent dispenser.
In this case you can fill manually the tank with solid or liquid detergent.
Use only industrial dishwasher detergent, preferably liquid one.
ATTENTION
The temperatures of the tank and boiler CAN’T BE modified.
They are already set at 80°C for the boiler and at 53°C for the tank.
If the temperature of the tank is higher than 65°C,
then some cold water will enter into the tank in order to reduce the temperature at the set temperature.

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EN
INSTRUCTION MANUAL INDUSTRIAL DISHWASHER
♦ WASHING:
1. Press he cycle bu on (2); he corresponding indica or ligh (2a) will urn on.
2. Wai un il he machine has finished he cycle / ho rinse.
3. A he end of he cycle (ligh 2a off), open he door and remove he rack.
♦ COLD RINSE BUTTON
1. Press and hold he cold rinse bu on (3). The indica or ligh (3a) will urn on. The machine will now rinse wi h cold
wa er.
2. Swi ch off he cold rinse bu on (3). The corresponding indica or ligh will urn off.
ATTENTION
To achieve a good washing result, it is essential to wait until the machine reached the correct temperatures, so when
light 7a and 8a off.
ATTENTION
Do not open the door until the machine has finished the cycle. In case the door is opened during the cycle, the cycle will
stop. Closing the door, the cycle will continue from the point where it was interrupted.
ATTENTION
All machines are equipped with Interlock function. This device allows the machine to perform the rinse at the end of
wash cycle only when the preset temperatures have been reached.
If the wash cycle has started before the rinse boiler heating lamp (7a) has switched off, then the wash cycle will be longer
and will continue until when the set temperature is reached.
It is possible to deactivate the Interlock function by modifying the DEEP SWITCH positioned on the electronic board
(see page 15 - DEEP 4 ON).

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EN
INSTRUCTION MANUAL INDUSTRIAL DISHWASHER
ADJUSTING CHEMICA DOSING
RINSE AID DISPENSER—HYDRAU IC PUMP
♦ Remove he fron panel by loosening he screws. This will give access o he dispenser.
♦ Fill he silicone ube of he rinse-aid pump wi h wa er, using a wa er pis ol.
♦ Press he cycle bu on (2). This will s ar he wash cycle (pump will s ar washing), he indica or ligh will urn on (2a).
♦ Wai for abou 20 seconds and open he door sligh ly. This will stop the wash cycle.
♦ Visually check ha he amoun of liquid in he silicone ube is correc ly sucked. We recommend o use aprox 0,3g of
produc for each cycle when wa er hardness is sof and 0,6 g when medium. Anyway, please refer o he ecnical shee of
he used produc .
♦ Adjus he pump sucked volume by regula ing he screw.
♦ Res ar he machine by closing he door and wai again for 20 seconds. Then re-open he door sligh ly.
♦ Check again he amoun of liquid sucked; if i is no correc hen adjus again wi h he screw.
♦ Repea again he opera ion closing door / opening and regula ing he screw un il when he required amoun of produc is
sucked.
♦ Re-ins all he fil er a he end of he silicone ube and inser i in o he rinse aid bo le. Re-assemble he fron panel of he
machine.
ATTENTION
It is important to respect safety regulations when using corrosive products. We recommend the use of gloves and glasses

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EN
INSTRUCTION MANUAL INDUSTRIAL DISHWASHER
PERISTA TIC DETERGENT PUMP (OPTIONAL - ONLY ON SOME VERSIONS)
♦ Inser he fil er a he end of he de ergen ube and place i in o he bo le of de ergen .
♦ The de ergen dispenser works during he filling up of he machine and durino he rinsing a he end of each wash cycle.
Perform a series of washes and check he soil removal on he dishes. De ermine if i is necessary o increase or decrease
he quan i y of produc . If i ’s necessary, open he fron panel of he machine and regula e wi h he adjus ing screw.
♦ Finally reassemble he fron panel on he machine.
ATTENTION - GENERA NOTES
It is important to respect the safety regulations for the use of corrosive products. We recommend the use of gloves and
glasses.
During the installation of the machine, the chemical dosing pumps must be correctly adjusted.
Please remember that the quantity of detergent and rinse aid depends on the quality of products and the hardness of the
water. Refer to the instructions of the chemical manufacturer.
Every time you change the products (detergent or rinse aid) it is NECESSARY to clean both systems by making the
tubes sucking some water for some cycles.
ON Y USE PRODUCTS FOR SPECIFIC INDUSTRIA DISHWASHER USE.
We recommend to replace either rinse and detergent tubes at least every 12 months.
Failure to comply with these instructions will void the warranty granted on the machine.

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TROUB ESHOOTING
EN
INSTRUCTION MANUAL INDUSTRIAL DISHWASHER
PROB EM
SO UTION
The machine doesn’ s ar
1) Make sure he elec rical power is “ON”.
2) Check ha power is ON a he ON/OFF swi ch.
3) Check ha he door is properly closed and ha he micro swi ch is correc ly opera ing.
4) Check ha he ank wa er level pressure swi ch and he solenoid valve are working.
Wa er in he wash ank does no
s op filling
1) Check ank wa er level pressure swi ch.
2) Check ha he air pressure swi ch is no obs ruc ed.
The wash ank doesn’ fill or
machine is no rinsing
1) Check ha he wa er inle ap.
2) Check ha he “ON - OFF” swi ch is ON.
3) Check ha he “0-1” swi ch is on posi ion 1.
4) Check ha he wa er overflow is ins alled correc ly.
5) Check ha he wash je s and wash arms are no blocked by lime scale or soil.
6) Check if here is some wa er in he air gap. Remove he drain overflow and drain ank com-
ple ely. If he faul is no solved, replace he pressure swi ch.
7) Check ha he wa er solenoid valve opens and closes correc ly. If i no replace i .
The wash ank fills very
slowly
1) Check he wa er inle ap is correc ly open.
2) Check ha he inle wa er supply pressure is a leas 2 bar. If no , we sugges o ins all a
boos er pump.
3) Remove he wa er supply hose, check ha he solenoid valve fil er is no clogged wi h dir
or sand.
4) Check ha he rinse je s are no res ric ed wi h lime scale or soil.
5) Check ha he overflow is properly inser ed.
6) Remove he flow reducer.
The wa er is no hea ing
1) Le wa er en er in o he ank while ensuring ha he overflow is properly inser ed.
2) Check ha he ank and boiler hea ing elemen s are properly working.
3) Check ha safe y hermos a s have no in errup ed curren .
The ank doesn’ drain 1) Drain pipe can be blocked by a solid body. Remove i from he drain pipe or, if required,
replace he pipe.
The washing resul s are no
good
1) If he fil er baske (in fron of he wash pump) is dir y, clean i horoughly.
2) Check ha he wash arms and je s are no res ric ed by soil.
3) Verify ha he de ergen con ainer is no emp y and de ergen is being aken in o he wash
ank.
4) The wash cycle may be oo shor when washing heavily soiled ware. Repea wash cycle.
5) Verify ha he wash ank wa er is a he righ empera ure.
6) Verify ha he wash arm ro a es freely.
Glasses and pla es do no dry
well
1) Check manufac urer ins ruc ions for he correc dosage of rinse aid produc .
2) Check he amoun and quali y of produc used. (Resul s are improved when using sof ened
or demineralized wa er).
1) The glassware mus be racked correc ly in he baske .
2) Check quali y and quan i y of rinse aid produc .
3) Insufficien de ergen or low quan i y of produc used. We sugges o check and if neces-
sary, o adjus i .
Condensa ion on he glassware

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EN
INSTRUCTION MANUAL INDUSTRIAL DISHWASHER
PROB EM
REMEDY
Glassware does no sparkle
1) Use only defoaming de ergen and rinse aid for indus rial appliances. Check he quali y of
produc used.
2) Too much de ergen or oo much rinse aid may be used. Please check.
Presence of oo much foam in
he ank
1) Verify ha he wa er empera ure in he wash ank is no lower han 50 °C. Check he qual-
i y of he de ergen . Use only indus rial produc s.
2) Too much rinse aid and also low wash ank empera ure can genera e foam.
3) Check ha he wash ank has no been cleaned wi h incorrec produc s. If i has, drain, rinse
and refill he ank.
4) In case a foaming produc was wrongly used, drain and refill he ank wi h wa er, several
imes un il he foam disappears, hem use an any roaming produc .
5) Check ha he ank and boiler elemen s are correc ly working.
Glassware s reaked or spo ed 1) Check he amoun of rinse aid per cycle. Follow he ins ruc ions recommended by he
manufac urer, referring o he hardness of wa er.
Wash arms urns wi h difficul y
or do no urn
1) Remove and clean wash arms (see user manual).
2) Verify ha he inle pressure exceeds 2 bar (200 kPa). If no , we sugges o ins all a boos er
pump.
3) Check ha he cen ral disk below he wash arm assembly is he correc posi ion.
Rinse aid dispenser does no
work
1) Verify he wa er level in he ank; in case i ’s emp y, fill and s ar .
2) If he ank is full, follow ins ruc ions a poin no. 3.
3) We sugges you o unlock he valves, in order o allow he correc flow of liquid. Using a
wa er syringe of 100 cc press some wa er in o he rinse aid suc ion ube (see page, 10 of his
handbook).

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INSTRUCTION MANUAL INDUSTRIAL DISHWASHER

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EN
INSTRUCTION MANUAL INDUSTRIAL DISHWASHER
CARD MODE ST

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EN
INSTRUCTION MANUAL INDUSTRIAL DISHWASHER
DEEP POSITION CARD MODE ST

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IT
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