ITV ICE MAKERS IQ 50C User manual

TECHNICAL MANUAL
IQ R290 ELECTRONICS RANGE
MODELS:
IQ 50C
IQ 90C
IQ 180C
IQ 230
IQ 450
IQ 650
READ THIS MANUAL CAREFULLY, ESPECIALLY THE INSTALLATION AND
MAINTENANCE SECTIONS. THE INSTALLATION OF THIS APPLIANCE MUST BE CARRIED
OUT BY THE TECHNICAL ASSISTANCE SERVICE.

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INDEX
1. INTRODUCTION...................................................................................................................................4
1.1. WARNINGS .................................................................................................................................4
1.2. MACHINE RECEPTION...............................................................................................................6
2. INSTALLATION ....................................................................................................................................8
2.1. ICE MACHINE LOCATION ...............................................................................................................8
2.2. ICE MACHINE LEVELING.................................................................................................................9
2.4. MINIMUM DISTANCE TO OBSTACLES............................................................................................9
2.5. WATER SUPPLY CONNECTION ....................................................................................................10
2.6. DRAIN CONNECTION.....................................................................................................................11
2.6.1. GRAVITY DRAINAGE ...............................................................................................................11
2.6.2. DRAIN CONNECTION BY PUMP .............................................................................................11
2.7. ELECTRIC CONNECTION ..............................................................................................................12
3. PRIOR CONTROL AND START-UP...................................................................................................13
3.1. PRIOR CHECK................................................................................................................................13
3.2. ASSEMBLY OF THE DISPERSION CONE......................................................................................13
3.3. START UP.......................................................................................................................................14
4. CONTROL DISPLAY ..........................................................................................................................15
5. DESCRIPCIÓN DE COMPONENTES.................................................................................................16
5.1 EQUIPO DE REFRIGERACIÓN .......................................................................................................16
5.2 HYDRAULIC EQUIPMENT...............................................................................................................17
5.2.1 Hydraulic system compact machine ...........................................................................................17
5.2.2 Modular machine hydraulics.......................................................................................................17
5.2.3. Drainage by pump (only for compacts) ......................................................................................18
5.2.4 Water level control......................................................................................................................19
5.3 ELECTRICAL EQUIPMENT..............................................................................................................20
5.4. SINGLE PHASE ELECTRONIC BOARD....................................................................................21
5.4.1 Inlets ..........................................................................................................................................22
5.4.2 Outlets........................................................................................................................................22
5.4.3 Signaling LEDs...........................................................................................................................23
5.4.4 Setting the DIP switches.............................................................................................................24
5.4.5 Functions of the internal button on the plate (RT). ......................................................................25

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5.5 THREE-PHASE ELECTRONIC BOARD ...........................................................................................26
5.6 ELECTRONIC BOARD FOR DRAINAGE BY PUMP.........................................................................27
5.7 MODBUS..........................................................................................................................................28
6. OPERATION SEQUENCE.....................................................................................................................29
7- ALARMS ................................................................................................................................................30
7.1 High pressure safety switch ..............................................................................................................30
7.2 Geared motor alarms........................................................................................................................30
7.2.1 Temperature shutdown of the geared motor...............................................................................30
7.2.2 Stop of the geared motor due to current below the lower limit.....................................................30
7.2.3 Stop of the geared motor due to current above the upper limit....................................................31
7.3 Shutdown due to low water level.......................................................................................................31
7.4 Shutdown due to lack of water consumption .....................................................................................31
7.5 NTC sensor alarm.............................................................................................................................31
7.6 Blocking alarm ..................................................................................................................................32
7.7 Shutdown by phase sequence ..........................................................................................................32
7.8 Operation of alarm history.................................................................................................................32
8. MAINTENANCE AND CLEANING PROCEDURES................................................................................33
8.1 CLEANING OF AIR CONDENSER ...................................................................................................34
8.2 CLEANING OF WATER CONDENSER ............................................................................................34
8.3 CHANGE OF WATER FILTER..........................................................................................................34
8.4 CLEANING CYCLE...........................................................................................................................35
8.4.1 Decalcification process ..................................................................................................................36
8.4.2 Disinfection process.......................................................................................................................36
8.7 MAINTENANCE TABLE ....................................................................................................................37
9. TROUBLESHOOTING GUIDE...............................................................................................................38
9.1 GENERAL QUESTIONS ............................................................................................................38
9.2 PUMP DRAINAGE............................................................................................................................39
10. TECHNICAL INFORMATION...............................................................................................................40

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1. INTRODUCTION
This manual has been created to provide the installer with information to carry out a correct installation and for
the effective maintenance of the machine.
Furthermore, the user will find in the document a section referring to the cause of possible incidents, as well as
complete information on their resolution.
Therefore, it is recommended to keep the manual in a safe place to resolve any questions related to the
operation of the machine during its useful life.
1.1. WARNINGS
• The installation of this equipment must be carried out by the Technical Service.
• Connect only to a drinking water distribution network.
• Use the new hoses supplied with the appliance. Old hoses must not be reused.
• The socket must always be located in an accessible place.
• When positioning the appliance, make sure that the power cord is not trapped or damaged.
• Do not place multiple portable power outlets or portable power sources at the rear of the appliance.
• Always disconnect power to the machine before any cleaning or maintenance service.
• Any necessary change in the electrical installation for the proper connection of the machine must be
carried out exclusively by qualified and certified professional personnel.
• Modifying or attempting to modify this machine is extremely dangerous and will void the warranty.
• The appliance must not be used by persons (including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge, unless they have been given supervision or
instruction.
• Connect only to potable water supply. This machine is not intended to be used outdoors or exposed to
rain.
• The machine must be connected using the power cord supplied with the equipment. It is not intended
to be connected to a fixed pipeline.
• To avoid danger due to instability of the appliance, it must be fixed in accordance with the instructions.
If the power cable is damaged, it must be replaced with a special mounting cable that will be supplied by the
manufacturer or after-sales service. This replacement must be carried out only by a qualified technical
service.

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It is mandatory to connect the equipment to ground to avoid possible electric shocks to people or damage to
the equipment. The machine must be grounded in accordance with local and/or national regulations. The
manufacturer disclaims any responsibility in the event of damage occurring due to the lack of ground
installation.
To ensure the proper functioning and efficiency of this equipment, it is very important to follow the
manufacturer's recommendations, especially those related to cleaning and maintenance operations, which
must only be carried out by qualified personnel.
ATTENTION: The intervention of unqualified personnel, in addition to being dangerous, can cause serious
breakdowns. In case of damage, contact your dealer. We recommend always using original spare parts.
ITV reserves the right to make changes to specifications and design without notice.
WE REMIND YOU THAT MAINTENANCE AND CLEANING OPERATIONS ARE NOT INCLUDED IN THE
WARRANTY AND THEREFORE, THEY WILL BE BILLED BY THE INSTALLER.
This sign indicates "Risk of Fire/Flammable Materials" due to the use of flammable refrigerant.
For this reason, the following warnings should be considered:
Keep the openings for ventilation of the appliance casing or built-in furniture without obstructing it.
•Do not use mechanical devices or other means to accelerate defrosting, only those recommended
by the manufacturer.
•Do not damage the refrigerant circuit.
•Do not use electrical devices inside the food compartments, unless they are recommended by the
manufacturer.
•Explosive substances, such as aerosols with flammable propellant, must not be stored in this
appliance.

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In case of refrigerant leak:
•Do not generate a flame in the surroundings of the appliance.
•Do not turn on/off switches or connect/disconnect plugs in the area of the appliance.
•Do not use a direct flame.
•Immediately ventilate the area of the appliance by opening doors and windows.
•Call an authorized technical service.
Disposal of the ice machine: ITV encourages you to follow the regulations of each country regarding the
ecological disposal of electrical and electronic devices such as this. The user who wants to dispose of this
equipment must contact the manufacturer and follow the appropriate differentiated collection method for
subsequent treatment.
1.2. MACHINE RECEPTION
Inspect the outer packaging. In case of damage, make the corresponding claim to the carrier. To confirm the
existence of damage, unpack the machine in the presence of the carrier and note any damage tothe equipment
on the receipt document or transport document.
Always indicate the number and model of the machine. This number is printed in three places:
(1) Packaging: On the outside it contains a label with the serial number.
(2) Exterior of the unit: On the rear panel of the unit there is a label with the same characteristics as the
previous one.
(3) Nameplate: On the back of the machine.

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Check that the installation kit inside the machine is complete and includes:
•Shovel
•¾ inch water inlet hose
•22mm drain hose
•Filter gasket
•User manual
•Warranty
CAUTION: All packaging elements (plastic bags, cardboard boxes and wooden pallets) must be kept out of
the reach of children, as they are a source of potential danger.

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2. INSTALLATION
2.1. ICE MACHINE LOCATION
This ice maker is not designed to be used outdoors. The ice maker should not be located next to ovens, grills,
or other equipment that produces a lot of heat.
Compact IQ machines are designed to operate at ambient temperatures between 10ºC and 43ºC (50ºF and
109ºF) and inlet water temperatures between 5ºC and 35ºC (41ºF and 95ºF).
Below the minimum temperatures there may be some difficulties in making the ice flakes. Above the maximum
temperature, compressor life is shortened and output is substantially lower.
Airflow on compact air-cooled machines enters through the front
grille, entering the right front, and exiting the left front and rear. In
addition, the unit is equipped with a rear ventilation grill. Do not
obstruct the front grill with any object.
The unit can run recessed, but with reduced output.
For modular
units, the
position that the
airflow should flow through the rear should be taken into
account. Do not place objects behind or in front of the front
grill.
If the frontal ventilation is not sufficient, the outlet is totally or
partially obstructed or due to its location it receives hot air
from another appliance, we recommend, if it is not possible to
change the location of the machine, INSTALLING A
CONDENSED MACHINE BY WATER.
IT IS IMPORTANT THAT THE WATER PIPES DO NOT
PASS NEAR HEAT SOURCES SO AS NOT TO LOSE ICE
PRODUCTION.
The location should allow sufficient clearance for the water, drain, and electrical connections at the rear of the
icemaker.

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2.2. ICE MACHINE LEVELING
Use a level on the top of the ice maker to ensure the equipment is perfectly level.
Screw the leveling feet into the bottom of the ice maker as far as they will go. Place the machine in its final
position.
Use a level on top of the ice maker. Adjust each leg as necessary to level the ice maker from front to back and
side to side.
In modular machines, it must be leveled by adjusting the depósito legs.
2.4. MINIMUM DISTANCE TO OBSTACLES
See below for recommended minimum distances for proper operation and efficient service.
Compacta
Modular

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Connection diagram:
The location should allow sufficient clearance for water drainage and electrical connections at the
rear of the ice machine.
2.5. WATER SUPPLY CONNECTION
The quality of the water supplied to the ice maker will influence the time between cleanings and ultimately the
life of the product (mainly on water-cooled units). It will also have a notable influence on the appearance,
hardness and flavor of the ice.
Local water conditions may require water treatment to inhibit scale formation and improve flavor and clarity. If
you are installing a water filtration system, refer to the installation instructions supplied with the filtration system.
The pressure must bebetween 0.1MPa and 0.6MPa (1 and 6 bar). If the pressure exceeds these values, install
a pressure regulator.
The water connection must be dedicated (only equipment hooked to the water line).
ATTENTION: The machine must beconnected to the pipeline withadequate backflow protection in accordance
with current national and local regulations.

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2.6. DRAIN CONNECTION
2.6.1. GRAVITY DRAINAGE
The drain must be located lower than the level of the machine, at least 150mm.
It is advisable that the drain hose be 30mm in inner diameter and with a minimum slope of 3cm/meter.
2.6.2. DRAIN CONNECTION BY PUMP
This option only applies to compact machines.
This pump drain version allows a machine installation in which the drain can be located 30 meters horizontally
and 1.5 meters high from the machine's water outlet.
If the drain pipe runs incorrectly, the pump may not be able to evacuate the water, since the pump flow rate
may be influenced by the existence of air stored within the circuit.

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2.7. ELECTRIC CONNECTION
•It is mandatory to connect the equipment to ground. To avoid possible electric shock to persons or
damage to the equipment, the machine must be grounded in accordance with local and/or national
regulations, as applicable.
•The manufacturer disclaims any responsibility in the event that damage occurs due to the lack of
ground installation.
•If the power cable is damaged, it must be replaced with a special mounting cable that will be supplied
by the manufacturer or by the after-sales service. This replacement must be carried out only by a
qualified technical service.
•The machine should be positioned so that there is a minimum of space between the back and the wall
to allow easy and safe access to the cord plug.
•It is advisable to install a remote switch to completely disconnect the machine.
•Protect the outlet. Install appropriate switches, fuses and differential protector.
ATTENTION: The device requires an independent power supply of adequate capacity. Consult the electrical
specifications on the nameplate. Failure to use a separate power supply of adequate capacity may result in
damage to internal components or wiring. This could cause heat generation or fire.
The voltage is indicated on the nameplate and in the technical specifications section of this manual. A voltage
variation greater than 10% indicated on the nameplate may cause damage or prevent the machine from
starting.

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3. PRIOR CONTROL AND START-UP
3.1. PRIOR CHECK
a) Is the machine level?
b) Do the voltage and frequency match those on the nameplate?
c) Are the drains connected and working?
d) Are the ambient temperature and water temperature maintained in the following range?
e) Is the water pressure adequate?
MINIMUM
0.1MPa (1 bar)
MAXIMUM
0.6 MPa (6 bar)
f) The conductivity of the water must be at least 10 microSiemens
NOTE: In case the inlet water pressure is greater than 6 bar, install a pressure reducer.
3.2. ASSEMBLY OF THE DISPERSION CONE
This accessory distributes the ice in the depósitos, and prevents it from caking underthe outlettube. By varying
your position you can direct the ice in any direction.
Anchor to the bottom of the bin cap.
ATMOSPHERE
WATER
MAXIMUM
43ºC/109.4ºF
35ºC/95ºF
MINIMUM
10ºC/50.0ºF
5ºC/41ºF

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3.3. START UP
Once installation instructions have been followed (ventilation, site conditions, temperatures, water quality, etc.),
proceed as follows:
1. Open the water inlet. Check for leaks.
2. Connect the machine to the power source. Turn on the power switch
•Modular machines at the rear
▪Compact machines on the side of the electrical panel accessing through the
door. We can manipulate the switch by opening the door and with our hand
accessing the upper left part of the interior of the machine.
WARNING: this switch does not disconnect all the voltage inside the machine. Disconnect from the mains
before handling.
1. The button on the control panel, , will be red (stand-by mode), and when you press it, it will flash
blue for 10 minutes.
2. After 10 minutes of the timer, the machine will start and remain with a fixed blue light.
3. Check that there are no rubbing or vibrating elements.
4. Check that it produces ice correctly. *It is normal for some water to fall instead of ice in the first few
moments.
5. Check that there is no alarm on the control panel. If so, restart the machine. If it persists, see
"Troubleshooting Guide" section.
Damage due to lack of maintenance and cleaning operations is not included in the warranty.

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4. CONTROL DISPLAY
The outer panel is located on the front of the machine in the upper left corner and has 5 buttons:
Icon
Description
Color
Symbol
ON/OFF
ON/OFF button + two-colour LED.
•Push button to turn the machine on: the blue LED
indicates that the machine is ON (it can be on
timer, producing ice or stopped).
•Button for switching off the machine: the red LED
indicates that the machine is "OFF" but connected
to the mains (Stand-by).
•Push button for the restart function
•Push button for gearmotor only function.
•Error reader (blue+red)
Blue
and
red
PE 1
Stock
Indicates:
•Stop for filling the ice store
Green
PE2
Rotation
Indicates:
•Stop due to geared motor current outside the
range according to the table of values (above or
below the set range).
Red
PE3
Pressure
switch/ Outlet
safety
Indicates:
•Safety shutdown due to high pressure switch
•Shutdown due to lack of water consumption
•Stop due to thermal protector pt of the geared
motor
•Shutdown due to ice outlet blockage
Red
PE4
Water
Indicates:
•Water level failure
•Water draining in the cleaning cycle
Red
PE5

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5. DESCRIPCIÓN DE COMPONENTES
5.1 EQUIPO DE REFRIGERACIÓN
It consists of the following components:
-Compressor.
-Condenser. Air or water.
-Evaporator. Vertical tube with cooling jacket. They are kept filled with water and, inside, a worm
screw scrapes and removes the ice that forms.
-Thermostatic expansion valve (capillary in smaller models).
-Dehydrator
-Safety pressure switch (high pressure). Stops the machine, in case a pressure higher than this
value is reached:
oR290 →OFF 25 bar (362 psi)
-Condensing pressure switch. Controls the fan (air condensation) or valve (water condensation)
to keep the high pressure at the stipulated level:
oR290 →OFF11.5 - ON13.5 bar (167- 196 psi).

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5.2 HYDRAULIC EQUIPMENT
•Water inlet valve. Controlled by the control board; supplies water from the tank.
•Water tank/basin. Maintains the water level inside the evaporator using the communicating vessels
principle. Stainless steel electrodes signal the control board to maintain the internal level. An overflow
allows drainage to prevent internal spillage in case of malfunction and serves as a drain plug for the
tank.
•Evaporator feed pipe. Connects the water tank to the evaporator. Diverts to a drain valve that allows
the system to be drained.
•Discharge pipe. Carries the ice from the evaporator outlet to the ice box.
•Solenoid drain valve (for compact machines only): Controlled by the control board; supplies water
from the tank..
5.2.1 Hydraulic system compact machine
5.2.2 Modular machine hydraulics
Overflow
Drain
valve
Bucket
Cover with
electrodes
Drainage
collector
Inlet
valve
Drainage
collector
Inlet
valve
Bucket
Overflow
Cover with
electrodes

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5.2.3. Drainage by pump (only for compacts)
While the machine is on, there is water that needs to be evacuated:
•melt water from the ice melting in the ice bin.
•water from the drain valve that empties the system.
•water from the possible outlet of the safety overflow.
When the water tank is full of water covering the 2 electrodes (#5), the pump (#6) is switched on and evacuates
the water for 5 seconds. After 5 seconds, the pump switches off if the electrodes are not covered by water,
otherwise the pump starts again for 5 seconds.
There is a non-return valve at the discharge outlet of the pump which prevents the backflow of water in the
piping when the pump is stopped.
Should the system fail to operate for any reason, the water will flood the ice box. There is a vent pipe (#7) that
allows the system to remove any air that may remain in the water tank. The vent tube should always be above
the front door opening (#8).
If the pump runs continuously for 5 minutes, it will automatically stop for 5 seconds to cool down..
5
6
7
8

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5.2.4 Water level control
The water level control system is carried out directly by the conductivity signal at the short electrode LW.
Two electrodes of different lengths (as shown in the illustration below) are placed in the water tank, from which
an analogue conductivity signal (LW) is generated once the water reaches the short electrode.
It works as follows:
As soon as the water level is below the short electrode, the control board will count a delay time of 5 seconds
to close the EW relay corresponding to the solenoid valve. After this time has elapsed, the solenoid valve shall
open and fill the hydraulic circuit until the LW signal is present again.
The solenoid valve shall not operate for more than 90 seconds, which is the maximum consecutive operating
time of the water inlet solenoid valve. If this happens, the machine will enter the alarm stop state due to lack of
water as explained below under the point "Stop due to lack of water level".

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5.3 ELECTRICAL EQUIPMENT
•Geared motor (R): is a mechanical assembly consisting of an electric motor coupled to a speed reducer.
They reduce the input speed and multiply the torque based on the gear ratio "i".
•Water level electrodes (Lw) When the fluid reaches the two electrodes, they indicate to the plate that
the tank is full. The conductivity of the water must be less than 10 µsi.
•Button panel exterior: Located on the front of the machine, it has the power button and indicator lights.
•Electronic board (PCB control) : Control board that receives input signals, manages them and returns
outputs, normally by activating relays.
•Solenoid drain valve (EV): Allows the hydraulic circuit to be drained.
•Water inlet solenoid valve (EW): Maintains the water level in the evaporator feed tank.
•Safety pressure switch (Pt): In the event of reaching the set pressure (25 bar), it stops the machine
completely and sets it in alarm.
•Condensin pressure switch (Pc) : Starts or stops the fan or water inlet to maintain the set high pressure.
Motor-Reducer (R) /
Motor-technical protector (Pt)
Water level
electrodes (Lw)
Pushbutton
panel outside
Solenoid drain valve
(EV)
Water inlet solenoid
valve (EW)
Compressor
(C)
Pressure
switches