Electrolux IPro R452a User manual

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SLUSH MACHINE
IPro
R290, R452a ed R449
Attention: risk of fire –R290
OPERATOR’S MANUAL

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Manufacturer of this appliance is
S.P.M. Drink Systems S.p.A. –Via Panaro 2/b 41057 Spilamberto (MO)
All reproduction rights of this manual are reserved to it, even partial reproduction is prohibited.
The descriptions and illustrations refer to the specific machine/plant in question. The manufacturer reserves the right
to make any modifications he deems appropriate to series production at any time.
This manual:
it is an integral part of the supply and must be read carefully in order to use it correctly, in compliance with
the essential safety requirements;
it is drawn up according to the provisions of the Machinery Directive 2006/42/EC and contains the technical
information necessary to correctly carry out all the procedures in safe conditions;
it must be stored with care (protected in a transparent and watertight casing to prevent deterioration) and
must accompany the machine throughout its life, including any change of ownership. In the event of loss or
deterioration, a copy can be obtained by requesting the manufacturer, reporting the data on the identification plate
The manufacturer declines all responsibility for improper use of the machine/plant and/or for damage caused as a
result of operations not covered in this manual.

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INDEX
1. SAFETY INSTRUCTIONS...........................4
Cleaning and daily sanitizing procedures......... 5
2. EQUIPMENT KIT.......................................10
3. TRANPORT TIPS.......................................10
4. LIFTING TIPS.............................................10
5. TECHNICAL SPECIFICATIONS..............11
6. POSITIONING............................................12
7. CONNECTION TO THE POWER SUPPLY
MAINS.......................................................13
8. IPROW - CONNECTION SPECIFICATIONS
....................................................................14
9. START-UP PROCEDURES .......................15
10. ELECTRONIC CONTROL BOARD..........16
Manual mode .................................................. 16
Automatic mode.............................................. 17
Setting mode ................................................... 17
11. MECHANICAL CONTROL BOARD........20
Mechanical timer ............................................ 21
12. UV LIGHTS MANAGEMENT...................22
13. OPERATING INSTRUCTIONS.................23
14. SPECIAL MAINTENTANCE.....................24
Condenser cleaning......................................... 24
Control and replacement of seals.................... 25
Winter storage................................................. 25
15. DISCLAIMER.............................................25
16. TROUBLESHOOTING GUIDE .................26
17. WIRING DIAGRAM...................................28
230/50 ............................................................. 28
Water............................................................... 36
UV lights......................................................... 38
115/60 ............................................................. 44

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1. SAFETY INSTRUCTIONS
This installation and operation manual is
an integral part of the equipment and must
be kept for future consultation.
Unless otherwise stated, this manual is
addressed to operators (staff members
who uses the equipment on a daily basis)
and to servicemen (staff members qualified
to carry out the installation and/or
maintenance). The parts of the manual
addressed only to servicemen are pointed
out accordingly. Please read carefully the
warnings listed here below before
installation and start-up of the equipment.
This equipment has been designed to
produce coffee cream, ice cappuccino,
sorbets, slushes and similar frozen dairy
products obtained by blending water or
milk with the powder.
Upon receipt of the equipment, make sure
that its part number matches the one
specified in the order, which can be found
on all the delivery documents.
This equipment is exclusively destined to
the purpose for which it was designed.
The manufacturer cannot be held
responsible for any damage due to
improper use.
This appliance can be used by children
aged from 8 years and above and persons
with reduced physical, sensory or mental
capabilities or lack of experience and
knowledge if they have been given
supervision or instruction concerning use
of the appliance in a safe way and
understand the hazards involved. Children
shall not play with the appliance. Cleaning
and user maintenance shall not be made
by children without supervision.
This equipment is not suitable for outdoor
use. This machine is not suitable for
installation in locations where water jets
are used and it must not be cleaned by a
water jet.
This appliance is intended for professional
use and must be installed in places where
it can be checked by qualified personnel.
Do not store explosive substances such as
aerosol cans with a flammable propellant
in this appliance.
This appliance is intended to be used in
household and similar applications such as
–staff kitchen areas in shops, offices and
other working environments;
–farm houses and by clients in hotels,
motels and other residential type
environments;
–bed and breakfast type environments;
–catering and similar non-retail
applications.
The installation and subsequent servicing
operations must be carried out by skilled
members who have been trained to use the
device and in compliance with the
regulations in force.
The machine has to be placed on a sturdy,
horizontal surface making sure it is well
ventilated by leaving a gap of 20 cm around it
and do not install it near heat sources (fig.1);
we recommend you to maintain a room
temperature between 24 and 38°C (between
75°F and 100°F).
For the 220-230V/60Hz version this
temperature can be extended up to
43°C/109°F.
For a safe and correct installation, it is
essential to provide a suitable socket controlled
by a thermal cut-out switch whose contacts are
at least 3 mm apart, in accordance with the
current national safety regulations.
If the power cable is damaged, it must be
replaced by the manufacturer, its after sale
service or by qualified personnel, to prevent any
possible risk.

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- WARNING: do not locate multiple
portable socket-outlets or portable power
supplies at the rear of the appliance.
- WARNING: when positioning the
appliance, endure the supply cord is not
trapped or damaged.
The continuous, equivalent, weighted level of
acoustic pressure is below 70 dB.
This manual is also available in an
alternative format on our website.
Cleaning and daily sanitizing procedures
In order to maintain the unit in like-new
operating condition and to respect current
regulations, it’s absolutely necessary to
frequently and carefully perform the cleaning
and sanitizing operations as described below.
In case of prolonged shutdown (winter
storage), the machine must be disassembled,
washed and sanitized according to the
instructions in this manual before start-up to
ensure the best possible cleanliness.
!Caution!
Electric shock hazard. Do not splash water
on switches or allow water to flow onto
electrical components inside the machine.
!Caution!
To prevent bacteria growth, use only
sanitizers approved for plastic and rubber
objects, failure to do so could create a
health hazard.
Note: it is responsibility of the operator to be
aware of and conform to the requirements of
current local, state and federal laws concerning
the frequency of cleaning and conservation of
products used.
The cleaning instructions explained in this
section are essential procedures to remove
bacteria and maintain a sanitarily clean
machine.
We recommend to perform the cleaning
and sanitizing procedures every day and
anyway according to the local laws.
The machine and the mix manufacturers
decline all responsibility to damage that directly
or indirectly derives from people, animals, as
consequence of failure to comply with all
cleaning and sanitation instructions indicated in
this manual.

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- Empty the bowl of any remaining product.
- After unlocking the main cover with its key,
remove it.
- Fill the bowl with lukewarm water to help
melt off any sugar residuals and drain this water
before proceeding with the next step.
!Caution!
To avoid electrical shock or contact with
moving parts, before proceeding with the
disassembling operations, make sure all
switches are in “OFF” position and that the
main power supply is disconnected.
- Unscrew and slip off the knobs (fig.1) then
lower the bowl to eliminate any product residue
through the dispensing tap.
- Slightly move up and down the bowl as
shown in figure 2 while pulling it outwards, this
operation will help fully removing it from its
seating.
- Simultaneously apply pressure to the two
securing tabs (Q) and lift the dispensing tap (I)
to pull it out of its fixed position (see figure 3).
- Disassemble the dispensing tap by keeping
the indicated part (R) pressed down and slipping
off the dispensing lever (L) (see figure 4).
- Thoroughly wash each single part with hot
water and mild dishwashing detergent, rinse
well, and reassemble the parts.
!Caution!
To prevent bacteria growth, remove all
o-rings when cleaning.
Failure to do so could create a health
hazard.
Fig. 1
Fig. 2
Fig. 3
Fig. 4

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- Unscrew the securing bolt (S) in the direction
of the arrow (threading on the left), pull off the
mixing unit (U), and remove the sealing
washers (X) and (T) (see figure 5).
!Caution!
Avoid the use of abrasive cleaners which
can damage the finish. Do not put the parts
in a dishwasher. Dishwasher may damage
some parts such as the clear plastic bowls
and auger gears.
- Thoroughly wash all the removed components
with hot water and mild dishwashing detergent,
but do not use abrasive detergents or powders
that can damage the bowl.
- Provide yourself with a sanitizer suitable for
plastic, rubber and stainless steel objects
(Sodium hypochlorite 2%), for the US market
bring the approved KAY-5®Sanitizer/Cleaner
with a 100ppm dilution (1 Oz packet of KAY-5®
+2 ½ gallons of water) (the sanitizing product
shall comply with 40 CFR §180.940).
- Rinse well and then place all the components
in the sanitizer solution; for proper sanitizing
the parts must remain fully plunged as
recommended by the sanitizer manufacturer
(KAY-5 sanitizer suggest at least 1-2 minutes).
!IMPORTANT!
Carefully follow the sanitizer producer
prescriptions in terms of time and modes
of usage.
- After respecting the correct sanitizing period,
rinse well all the components with clean water
and dry them up with a clean cloth.
- Thoroughly wash the evaporator and the drip
tray surfaces with a sponge soaked with the
sanitizer (see fig.6).
- Repeat all these operations with a clean
sponge soaked with water and carefully dry up
all the surfaces with a clean cloth.
Fig. 5
Fig. 6

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Once performed all these cleaning and
sanitizing procedures, it’s possible to
reassemble all the components.
The correct assembly of the device is essential
to prevent leakage of product and damage of
the machine. To assemble the machine you will
need an approved lubricant (such as vaseline).
Make sure all parts have been washed and
sanitized before assembling. Persons
assembling the machine must first wash and
sanitize their hands and forearms with an
approved sanitizer.
- Mount the mixing system back together
(fig.5), according to the following procedures:
•Spread the suction gaskets (X) with
Vaseline grease to reduce friction and
thus limit wear (fig.7).
•Mount the bowl seal (T) making sure it
faces the right direction (fig.8).
•Assemble the scraper auger (U), making
sure the head is perfectly engages with
the driving shaft.
•Secure all the parts into place by
screwing the bolt (S) in a counter
clockwise direction.
- Mount the bowl back on, positioning it into
place, and making sure that it has a tight hold
on its gasket (see figure 10). To facilitate this
procedure, lubricate the rear part of the bowl at
the point in which it fits together with its sealing
(fig.9).
- Secure the bowl by tightening the two knobs,
without exerting excessive pressure.
IMPORTANT
Do not over tighten the bowl knobs.
Excessive force could damage the thread
and/or the bowl itself.
Fig. 7
Fig. 8
Fig. 9
Fig. 10

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- Reassemble the parts of the dispensing tap,
making sure that the gaskets (J) are lubricated
with Vaseline grease so that the tap slides
smoothly back into its fixed position, until it’s
completely inserted (see figure 11).
!Important!
The not perfect sliding of the tap
compromises its own seal.
- Remove the drip tray and pulling it forward
(see figure 12). Wash each part thoroughly,
then reassemble the parts by inversely following
the procedures described above.
- Plug the unit back into appropriate power
supply.
- After the cleaning and reassembly as per
above instructions, fill the bowl with a mix of
water and an approved sanitizer, according to
the measures specified.
- Start the mixing part of the machine to
sanitize all the parts following the cleaning
solution specifications.
- Drain the cleaning solution as follows:
•Unscrew the two knobs;
•Then lower the bowl to drain out any
remaining product through the
dispensing valve.
- Screws the knobs to fix the bowls.
Fig. 11
Fig. 12

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Sanitizing
Whenever the machine has remained unused
for some days after been cleaned and sanitized
as described in the chapter 1, the sanitizing
procedures described below must be performed
just prior to start-up the machine.
- Remove the main cover and the secondary
transparent one.
- Pour sanitizing solution into the bowl carefully
following the manufacturer prescriptions.
- After restoring the main cover, switch on the
machine and let the auger rotating leaving the
sanitizing solution for the time specified by its
producer.
IMPORTANT
Never let the sanitizer inside the bowl for
more than 15 minutes.
- Drain the solution by opening the plunger to
allow the bowl to empty. Open and close the
plunger at least 10 times during draining to
sanitize the product way out area also.
- Thoroughly rinse repeating these operations
with clean water instead of sanitizer solution.
- Now the machine is ready to be used.
2. EQUIPMENT KIT
In the packaging of this equipment you will find
also:
- operator’s manual,
- 1 tube of Vaseline grease lubricant to be used
for machine maintenance;
- EC declaration of conformity;
- 1 drip tray and 1 suction gasket for each bowl.
3. TRANPORT TIPS
To prevent the oil held in the hermetic
compressor running into the cooling circuit, the
device must be carried, stored and handled in
the upright position, following the direction
instructions on the packing. If the device is
accidentally or intentionally (for transportation
reasons) kept in any other position, it must be
set again in the correct position at least twenty
minutes before start-up procedures, in order to
let the oil flow back into the compressor.
4. LIFTING TIPS
Each machine is equipped with a special wooden
pallet that allows the handling with standard
forklift trucks.
Caution
Never lift the machine alone, but always seek
the assistance of another operator.
To prevent and avoid any damage to the
machine, all loading and unloading operations
should be carried out with special care. The
equipment can be lifted, with either a manual or
engine-powered lifting truck, by positioning the
forks in the base section of the unit.
The following operations should always be
avoided:
- to turn upside down the machine;
- to drag the machine with ropes or others;
- to lift the machine with slings or ropes
- to shake or rattle the machine and its
packaging.

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The machine must be stored in a dry place with
temperatures from 0°C to 40 °C. No more than
2 machines should be stacked on top of each
other, taking care to maintain the vertical
position, as shown by the arrows on the carton.
5. TECHNICAL SPECIFICATIONS
Technical and electrical specifications
All the machine’s technical and electrical
specifications are stated on the identification
plate, positioned in the internal part of the
equipment; a sample is shown here below.
The plate specifies:
•Model
• PNC –production code
•Serial number
• Electrical characteristics in Volt/Hz
• Max absorption in Watts
• Max current in Amps
•Climatic class
• Refrigerant gas and quantity used
• Markings
• Manufacturer
Noise emissions
The continuous, equivalent, weighted level of
acoustic pressure is below 70 dB.
Climatic class
Class N, indicates an ambient temperature for
machine use between 24 and 38°C.
Only for the 220-230V/60Hz version the climatic
class becomes T and the operating temperature
of the machine can be extended up to
43°C/109°F.
Dimensions:
The overall dimensions of the appliance are:
IPRO1
IPRO2
IPRO3
Height cm/in
87
34.25
87
34.25
87
34.25
Width cm/in
20
7.87
40
15.75
60
23.62
Depth cm/in
58
22.83
58
22.83
58
22.83
Weight kg/lb
39
89.98
60
132.28
81
178.57
Refrigerant
Between the gas used (R452a, R449 and
R290) the R290 is potentially flammable
and explosive.
Caution
Every possible precaution must be taken to
avoid any danger connected with the nature
of this gas during any ordinary and/or
extraordinary operation carried out on the
equipment.
In the event of breakdown:
In most cases, any technical problem can be
settled with slight interventions (please see the
troubleshooting guide at the end of this
manual); we therefore recommend you to
carefully read this handbook before contacting
the manufacturer or service centre.
Disposal
Caution
All the parts of the packaging must be kept
beyond the range of children, as they might
represent a potential safety/health risk.
Important
In respect of the environment, please dispose
the packaging as illustrated.
This symbol: means that the machine
cannot be disposed as common waste. It must
be handled in compliance with the provisions of
European directive 2002/96/CE (Waste Electrical
and Electronic Devices - WEEE) and the
resulting national legislation, in order to prevent
any potential damage to the environment and to
create health risks.
In order to correctly dispose of the device,
please contact the distributor from which you
purchased it or our after-sales service.

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6. POSITIONING
FOR SERVICEMAN ONLY
The installation and subsequent servicing
operations must be carried out by skilled
members who have been trained to use the
device and in compliance with the
regulations in force.
a) Remove the packing (fig.13), preserve it in
order to reuse for winter storage and make
sure the machine is in perfect condition.
!CAUTION!
All the parts of the packaging must be kept
beyond the range of children, as they
might represent a potential safety/health
risk.
b) Rest the machine on a sturdy, flat surface
making sure it is well ventilated by leaving a
gap of 20cm/8”all around it and do not install it
near heat sources (fig.14); we recommend
you to maintain a room temperature
between 24 and 38°C (between 75 and
100°F).
For the 220-230V/60Hz version this
temperature can be extended up to
43°C/109°F.
c) Check that the power mains voltage meets
the specifications on the equipment
identification plate and that the output available
meets the device’s power requirements.
Fit the plug into an earthed socket, removing all
multiple adaptors.
FOR FURTHER PRECAUTIONS, READ THE
SECTION “CONNECTION TO THE
ELECTRICITY MAINS” CAREFULLY.
d) The installation must be carried out in
accordance with the manufacturer’s instructions.
Failure to comply with the positioning and
installation instructions may impair the
machine’s operation.
Important
You are legally required to provide a suitable
grounding system for the equipment.
Before carrying out any cleaning and/or special
maintenance on the device, make sure it is
disconnected from the mains by unplugging it.
In the event of a breakdown or malfunctioning,
switch off the device and remove the plug.
Fig. 13
Fig. 14

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7. CONNECTION TO THE POWER
SUPPLY MAINS
FOR SERVICEMAN ONLY
Before fitting the plug in the power supply
socket, for your own safety, as already
mentioned in the previous paragraph, please
read the following precautions.
- The machine’s electrical safety is only
guaranteed when it is connected to a suitable
earth system, structured as provided by the
national safety current regulations (fig.15).
Therefore, the manufacturer cannot be held
responsible for any damage due to failure of the
grounding system of the machine.
- Do not obstruct the ventilating grill and heat
dispersion grill, since an insufficient ventilation
may not only reduce the efficiency of the
machine, causing it to function inadequately,
but may also cause serious damage to the
machine.
- Always verify electrical specifications on the
data plate of each machine. Data plate
specifications always replace the information of
this manual.
- For a safe and correct installation, it is
essential to provide a suitable socket controlled
by a thermal cut-out switch whose contacts are
at least 3 mm apart, in accordance with the
current national safety regulations (see fig.15).
- Never use extensions or multiple adaptors.
- Check the power lead along its entire length to
make sure it is not crushed in any way.
- To unplug the device, first disconnect the
power supply with the switch, then grip the plug
and gently pull it out.
Important
IF THE POWER CABLE IS DAMAGED, IT MUST
BE REPLACED BY THE MANUFACTURER, ITS
AFTER SALE SERVICE OR BY QUALIFIED
PERSONNEL, TO PREVENT ANY POSSIBLE RISK.
Fig. 15
- If required by local regulations, it is
possible to have the appliance permanently
connected to electrical power supply, ref.
National Electrical Code (NEC) and NFPA
70. If this is the case, it is necessary to
remove the right side panel, disconnect the
power cable from the machine wiring,
remove it from the machine and replace it
with the permanent cable by respecting the
local codes.

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8. IPROW - CONNECTION
SPECIFICATIONS
Important
Water connection must be carried out in
compliance with the regulations and
provisions in force in the country of use.
Connection parts supplied together with the
machine:
•Inlet water connection pipe: 3/4 female
connection.
•Outlet water pipe: reinforced 13mm
rubber hose.
•Screw fixing band to fix the hot water
discharge pipe.
- Supplied water inlet under the frame, near the
back side: ¾ male connection.
- Hot water outlet under the frame, near the
back side (see figure): reinforced rubber pipe,
14mm diameter barb connection.
- Along the water inlet line, before the slush
machine, it is recommended to insert a tap.
- The inlet water pressure has to be
between 2 and 2,5 bars; in case the water
pressure from the main is higher than 2.5 is
necessary to insert a pressure regulator set into
this range.
- Minimum inlet water pressure: 1 bar.
- As discharge pipe it is necessary to use a
reinforced rubber hose or a rigid one; avoid any
bottleneck along the discharge pipe and make
sure it is discharging without obstruction. Do
not use any kind of pipe that, considering more
or less an outlet temperature of 50°C, could
result deformed or damaged creating some
obstacles to the water exit. This could force the
intervention of the HP pressure switch stopping
the machine functioning.
- In case of lack of water, low water flow rate or
low water pressure along the line, the safety
pressure switch will stop the refrigerating
system functioning and the red light will light on
the machine control panel; only the compressor
will be stopped while all the other machine
functionalities will continue operating.
In this case, it is necessary to check for the
water along the line, push the red button under
the frame under the control panel and the
refrigerating system will start operating again.
- In case of frequent pressure switch
interventions, before pushing the red switch in
order to re-activate it, check for the water
presence along the inlet line and for the
discharge pipe to be free from obstacles.
NOTE: the frequent switch intervention with the
following reactivation without having defined the
root cause of this behaviour, could strongly
reduce the compressor life.

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9. START-UP PROCEDURES
!IMPORTANT!
BEFORE STARTING THE MACHINE, CARRY OUT
THE CLEANING AND SANITISING PROCEDURES
DESCRIBED IN CHAPTER 1.
- Dilute and mix the product in a separate
container according to the manufacturer’s
instructions (see fig.16); never pour dry
powder, crystals, or concentrate into a dry bowl.
Caution
Make sure that the mixture has a sugar content
near the 12-14%; a lower concentration could
seriously damage the mixing parts, as well as
the gearmotors.
NEVER USE ONLY WATER.
- Remove the luminous cover after unblocking it
by turning its special key clockwise (see fig.17).
- Remove the secondary transparent cover
(fig.18).
- Pour the mix obtained into the bowl respecting
the maximum limit on the bowl (see fig.19).
- Restore the secondary transparent cover and
then the luminous one making sure to have it
pushing against the security system
- Secure it by rotating its key counter clockwise.
Note -----------------------------------------------
IPRO is equipped with a very efficient safety
mechanism designed to protect the operator; it
is activated when cover is lifted. This device
automatically and immediately stops all moving
parts.
If the main cover is not correctly
positioned, the unit will not work.
------------------------------------------------------
- Insert the plug into the electrical power outlet.
- Activate the main switch.
Fig. 16
Fig. 17
Fig. 18
Fig. 19

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10.ELECTRONIC CONTROL BOARD
Manual mode
After connecting the unit plug with the
electricity main, the unit is ready to be switched
on. The control panel appears like the one in
figure 20.
Touching the ON/OFF symbol with a finger on
the capacitive display, it will be completely
switched on and it will appear such us the one in
figure 21; the unit is now ready to work in
manual mode.
On the capacitive display you will find the
following buttons:
ON/OFF: it turns on and off the unit.
LIGHT: it switches on and off the LED lights on
the bowl cover if pressed once, it locks all the
panel’s buttons if kept pressed for 5
seconds.
AM/PM: if the 12 hours mode is activated, this
two symbols indicates if it is morning or
afternoon.
DAY: indicates the day of the week.
LEFT-CENTER-RIGHT: these three buttons start
rotating the correspondent auger.
FREEZE: this button activates the freezing
mode.
CHILL: this button activates the chilling mode.
AUTO: if this button is switched on, the unit
starts working in automatic mode following the
set parameters.
Fig. 20
Fig. 21
!CAUTION!
The FREEZE, CHILL and the AUTO buttons,
could be switched on only if one of the
three augers is rotating; obviously this will
activate only the correspondent
refrigerating.

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Automatic mode
Pushing the AUTO button the unit will start
working in the automatic mode with the set
parameters; this mean that the unit will
automatically switch from the freezing mode to
the chilling one respecting day by day the set
parameters.
During this phase the FREEZE and the CHILL
buttons will be visible but not functioning.
!CAUTION!
IPRO is equipped with an insulated bowl
that will preserve the product temperature
for many hours so once it will be necessary
to operate in defrost/chill mode, we
recommend to extend the duration of this
operating mode until the product complete
melting.
! Warning !
If the machine is turned off at night, with the
bowls filled, or just partially filled, a layer of
solid ice may form on the surface, due to the
natural separation of the unmixed product. In
this case, before turning the machine back on, it
is necessary to verify for the product complete
melting in order to prevent damage to the
mixing auger.
Setting mode
In order to activate the setting mode it is
necessary to put the finger on the ON/OFF
button for 6/7 seconds; an acoustic signal will
advise the user about the setting procedure
activation.
Now the display looks like the one below and
this is the buttons description:
INCREASE: increases the set parameter.
DECREASE: decreases the set parameter.
ENTER: this button confirms the set parameter.
DAY+: this button allows to slide the day of the
week in order to select the right one.
12H/24H: allows to select the preferred mode.
START/STOP: allows to switch from the freezing
mode time begin to the stop one.
EXIT: allows to exit from the setting mode.

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Once entered the setting mode i twill be
possible to set the following parameters:
TIME, DAY AND TIME MODE
Once entered the setting mode the first
parameter that it is possible to set is the current
day; i twill be necessary to push the DAY+
button until the right day is shown.
After setting the day it is possible to set the
12h/24h mode by switching from one mode to
the other with the 12h/24h button.
Once selected these two parameters it is
possible to set also the current time, the hours
are now blinking on the display and using the +
and –buttons it is possible to modify it and,
once set, to fix it with the ENTER button.
After fixing the hours the minutes will start
blinking and as for the hours it is possible to
change that value with the + and –buttons and
fix the right setting at the end with the ENTER.
After the minutes confirmation the unit will
automatically switch to the setting of each day
of the week for the automatic functioning.
At this point of the setting procedure only the
first day of the week, Monday (MO) will appear
on the display together with the START one to
underline that it is now possible to set the hours
for the Monday CHILL mode starting time.
The hours are now blinking on the display and it
is possible to modify it with the + and - buttons;
Once the desired hour is set, it is possible to fix
it with the ENTER button.
After fixing the hours it will be possible to fix the
minutes and confirm them in the same way.
After the minute confirmation START will
disappear replaced by STOP in order that it is
now possible to set the end time of the CHILL
mode and the beginning of the FREEZE one.
Once fixed both the hours and the minutes the
day will switch from Monday to Tuesday (TU);
also in this case it will be possible to set the
beginning and the end of the Tuesday CHILL
mode.
In this way it will be possible to set all the days
of the week until the last one, Sunday (SU)
after which the setting procedure will restart
from the beginning with the current time.
With the EXIT button it will be possible to exit
the setting mode.
NOTE: once the week time table has been
set, the unit will automatically maintain it.
NOTE: when the AUTO button is switched
on, the automatic mode parameters are
active and the FREEZE and CHILL buttons
are visible but not functioning.
In order to switch back from the AUTO
mode to the MANUAL one it is necessary to
press the button again.
NOTE: the time table of the automatic
mode is the same for all the three bowls.
NOTE: it is possible to switch on the
FREEZE and the CHILL mode only if at least
one of the three augers is rotating.

Data di emissione: July, 2023 Revisione: 01 Pag. : 19/52
“FILTER CLEANING” Alarm
A filter cleaning alarm will activate when the
unit is running hot due to insufficient internal air
circulation. When this occurs the FILTER
message will start blinking on the capacitive
display as shown in picture 22.
To determine the condition that caused the
alarm, see list of conditions below:
•Condition A: the filter is dirty and needs to
be cleaned.
Corrective Action: clean and replace filter
following instructions(Removing and
Cleaning Filter).
•Condition B: the unit is positioned too close
to a wall or other object restricting air flow
and causing the machine to run at a higher
temperature.
Corrective Action: reposition unit to
maximize ventilation space (Installation
Instructions).
•Condition C: the unit has been installed near
a heat source, causing the machine to run at
a high temperature (installation near a heat
source should be avoided).
Corrective Action: reposition unit to
maximize ventilation space.
“SYSTEM OVER TEMPERATURE” alarm
A system over temperature message CUT/OUT
will appear (fig.23) as a safety precaution when
the unit has overheated to protect the
compressor.
•The system automatically goes to “OFF”
status where the compressor’s operations is
stopped, while augers will keep working to
avoid forming ice blocks.
•When this occurs a CUT/OUT message will
appear on capacitive display to alert the
operator of this condition (fig.23).
•When this alarm activates, turn off all
switches. Then determine the condition and
the necessary corrective action.
Fig. 22
Fig. 23

Data di emissione: July, 2023 Revisione: 01 Pag. : 20/52
11.MECHANICAL CONTROL BOARD
a) Activate the general switch (D);
b) Each bowl is controlled by two switches which
are activated as follows:
- to make ice slush or sorbets: first select the
switch (1) (L for left bowl, C for the central one
and R for the right one) to activate the mixer
components, then select the corresponding
switch (2) to activate the cooling system in the
freeze mode.
- in order to activate the defrost mode: select
the switch (1) (L for left bowl, C for the central
one and R for the right one) to activate the
mixer components, then select the
corresponding switch (L) to activate the cooling
system at a positive temperature.
c) The (E) switch controls the covers’ LED lights.
! Warning !
If the machine is turned off at night, with the
bowls filled, or just partially filled, a layer of
solid ice may form on the surface, due to the
natural separation of the unmixed product. In
this case, before turning the machine back on,
it is necessary to verify for the product
complete melting in order to prevent damage
to the mixing auger.
!CAUTION!
IPRO is equipped with an insulated bowl
that will preserve the product temperature
for many hours so once it will be necessary
to operate in defrost/chill mode, we
recommend to extend the duration of this
operating mode until the product complete
melting.
CUT/OUT alarm and safety pressure
switched intervention
If the unit is equipped with the safety pressure
switch, the red light F on the unit right side,
advices the user when the safety pressure
switch has been activated and needs to be
manually re-activated.
The manually re-start button is seated under
the unit near the right side as indicated by the
picture below.
In order to find and fix the root conditions that
have forced its activation, please see the
“FILTER CLEANING” and the “SYSTEM OVER
TEMPERATURE” alarms paragraphs.