ITV ICE MAKERS NG 30, NG 45, NG Series Technical Manual

TECHNICAL MANUAL
NG SERIES
ICE CUBE MAKERS
MODELS:
NG 30
NG 35
NG 45
NG 60
NG 80
NG 120
CAREFULLY READ THE INSTRUCTIONS CONTAINED IN THIS MANUAL SINCE THEY
PROVIDE IMPORTANT INFORMATION RELATIVE TO SAFETY DURING INSTALLATION,
USE AND MAINTENANCE.
INDEX
1.
INTRODUCTION............................................................................................................................... 4
1.1.- Warning ........................................................................................................................................ 4
1.2.-Reception of the machine .............................................................................................................. 6
2.
INSTALLATION ................................................................................................................................ 8
2.1.- Placing of the ice maker ............................................................................................................... 8
2.2.-Levelling of the ice maker .............................................................................................................. 9
2.4.-Minimum distance to obstacles ...................................................................................................... 9
2.5.- Water supply connection ............................................................................................................ 10
2.6.-Drain connection.......................................................................................................................... 11
2.6.1.- Gravity drain......................................................................................................................... 11
2.6.2.- Drain Force Connection ....................................................................................................... 11
2.5.- Electrical connection ................................................................................................................... 12
3.
PRIOR CHECKING AND START-UP .............................................................................................. 13
3.1.- Prior checking ............................................................................................................................. 13
3.2.- Start-Up ...................................................................................................................................... 13
4.
SEQUENCE OF OPERATION ........................................................................................................ 15
4.1.
Control Board ........................................................................................................................... 17
4.2.- Alarms ........................................................................................................................................ 18
4.2.1 Safety high pressure switch.................................................................................................... 19
4.2.2 Long harvest .......................................................................................................................... 19
4.2.3 Ice production cycle timeout ................................................................................................... 19
4.2.4 Faulty temperature probe ....................................................................................................... 19
4.3 PCB push button function ............................................................................................................. 19
4.4 DRAIN FORCE ............................................................................................................................. 20
4.4.1
SEQUENCE OF OPERATION .......................................................................................... 20
4.4.2
CONTROL BOARD ........................................................................................................... 22
5
Refrigeration diagram...................................................................................................................... 23
6
MAINTENANCE AND CLEANING PROCEDURES ......................................................................... 24
6.1.- Cleaning water distribution system ............................................................................................. 24
6.2.- Cleaning water distributor and injectors ...................................................................................... 27
6.3.- Cleaning the bins ........................................................................................................................ 28
6.4.- Cleaning the condenser .............................................................................................................. 29
6.5.- External cleaning of the machine ................................................................................................ 29
6.6.- Water leakage checking ............................................................................................................. 30
6.7.- MAINTENANCE TABLE ............................................................................................................. 30
2
7
USER TROUBLESHOOTING GUIDE ............................................................................................. 31
7.1. general questions ........................................................................................................................ 31
7.2. drain force.................................................................................................................................... 32
8
TECHNICAL DATA ......................................................................................................................... 33
3
1. INTRODUCTION
Thank you for purchasing a ‘NG’ Ice Cube Maker by ITV. You have purchased one of the most
reliable ice-making products on the market today.
Carefully read the instructions contained in this manual since they provide important information
relative to safety during installation, use, and maintenance.
1.1.- WARNING
This appliance is intended to be used in household and similar applications such as staff kitchen
areas in shops, offices and other working environments; farmhouses and by clients in hotels,
motels and other residential type environments; bed and breakfast type environments; catering
and similar non-retail applications.
The installation of this equipment should be done by the Service Department.
The socket should always be placed on an accessible location.
When positioning the appliance, ensure the supply cord is not trapped or damaged.
Do not locate multiple portable socket-outlets or portable power supplies at the rear of the
appliance.
Always disconnect the power supply from the machine before any cleaning or maintenance
service.
Any change needed on the electrical installation for the appropriate connection of the machine,
should be exclusively performed by qualified and certified professional personnel only.
Any use by the ice maker not intended to produce ice, using potable water, is considered
inappropriate.
It is extremely dangerous to modify or intend to modify this machine and will void warranty.
The appliance is not to 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.
Children being supervised not to play with the appliance.
Connect to potable water supply only. To see “Installation” chapter (5).
This machine is not intended to be used outdoors nor exposed to the rain.
The machine should be connected using the power cord supplied with the equipment.
It is mandatory to ground the equipment to avoid possible electric shock on individuals or
damages to the equipment. The machine should be grounded pursuant local and/or national
4
regulations. The manufacturer shall be held harmless in case of damages arising due to the lack
of the ground installation. To see “Installation” chapter (7).
In order to assure the proper operation and efficiency of this equipment, it is extremely important
to follow the recommendations of the manufacturer, especially those related to cleaning and
maintenance operations, which should be performed by qualified personnel only.
CAUTION: The intervention of non-qualified personnel, besides of being dangerous, could result
in serious malfunctioning. In case of damages, contact your distributor. We recommend always
using original spare parts.
ITV reserves the right to make changes in specifications and design without prior notice.
This signal indicates “Risk of fire / Flammable materials” because of the use of flammable
refrigerant.
For compression-type appliances that use flammable refrigerants should additionally consider
the substance of the warnings listed below:
•
Keep ventilation openings, in the appliance enclosure or in the built-in structure, clear of
obstruction.
•
Do not use mechanical devices or other means to accelerate the defrosting process,
other than those recommended by the manufacturer.
•
Do not damage the refrigerant circuit.
•
Do not use electrical appliances inside the food storage compartments of the appliance,
unless they are of the type recommended by the manufacturer.
•
Do not store explosive substances such as aerosol cans with a flammable propellant in
this appliance.
In case of a flammable refrigerant leakage:
•
Do not generate flames close to the appliance.
•
Do not switch on/off or plug in/off the appliance.
•
To ventilate immediately the area where appliance is located by opening doors and/or
windows.
•
To call to an authorized technical service.
5
Disposal of the ice maker: ITV encourages to follow the regulations of each country regarding
eco-friendly disposal of electric and electronic devices such this one. User who is wanting to
dispose of this equipment must contact the manufacturer and follow the method to appropriate
differentiated collection for the subsequent treatments.
1.2.-RECEPTION OF THE MACHINE
Inspect the outside packing. In case of damages, make the corresponding claim to the carrier. To
confirm the existence of damages, unpack the machine in the presence of the carrier and state
any damage on the equipment on the reception document or freight document.
Always state the machine number and model. This number is printed on three locations:
(1) Packing: On the outside, it contains a label with the serial number.
(2) Exterior of the unit: On the back panel of the unit, there is a label with the same characteristics
as the previous one.
(3) Nameplate: On the back of the machine.
Check that in interior of the machine the installation kit is complete and comprises:
•
Ice scoop
6
•
•
•
•
¾ inlet water hose
22 mm drain hose
1 filter
User manual.
Warranty and serial number CAUTION: All packing elements (plastic bags, carton boxes and wood
pallets) should be kept outside the reach of children, as they are a source of potential hazard.
7
2. INSTALLATION
2.1.- PLACING OF THE ICE MAKER
This ice maker is not designed for outdoor operation. The icemaker should not be located next to
ovens, grills or other high heat producing equipment.
The NG machines are designed to operate at room temperature between 10ºC and 43ºC. There
may be some difficulties in ice cube removal under the minimum temperatures. Above the
maximum temperature, the life of the compressor is shortened and the production is substantially
lower.
The air flow in air-condensed machines enters through the front grille, entering on the right front
and exiting on the left front side. In addition, the unit is equipped with a rear air vent. Do not
obstruct the front grille with any objects.
The unit can operate embedded, but with a reduction in output.
In case the front louver is not enough, the exit is either total or partially obstructed or due to its
placement it will receive hot air from another device, we recommend, in case it is not possible to
change the location of the machine, TO INSTALL A WATER CONDENSER.
IT IS IMPORTANT THAT THE WATER PIPING DO NOT PASS BY OR NEAR SOURCES OF
HEAT SO AS NOT TO LOSE ICE PRODUCTION.
The location must allow enough clearance for water, drain and electrical connections in the rear
of the ice machine. It is important that the water inlet piping does not pass near sources of heat
so as not to lose ice production.
8
2.2.-LEVELLING OF THE ICE MAKER
Use a level on top of ice machine in order to ensure the equipment is perfectly leveled.
Screw the leveling legs onto the bottom of the ice machine as far as possible.
Move the machine into its final position.
Use a level on top of the ice machine. Adjust each leg as necessary to level the ice machine from
front to back and side to side.
2.4.-MINIMUM DISTANCE TO OBSTACLES
Please see below the recommended minimum distances for proper operation and efficient
service.
9
CONNECTION DIAGRAM:
The location must allow enough clearance for water drain and electrical connections in the rear
of the ice machine
2.5.- WATER SUPPLY CONNECTION
The quality of the water supplied to the ice machine will have an impact on the time between
cleanings and ultimately on the life of the product (mainly in water cooled units). It also will have
a remarkable influence on the appearance, hardness and flavor of the ice.
10
Local water conditions may require treatment of the water to inhibit scale formation, improve taste
and clarity. If you are installing a water filter system, refer to the installation instructions supplied
with the filter system.
Pressure should be between 0.1MPa and 0.6MPa (1 and 6 bar). If pressure overpasses such values,
install a pressure regulator.
The water connection needs to be dedicated (only piece of equipment hooked to the water line).
Water line from the water valve to the ice machine needs to be ¼” nominal ID tubing.
ATTENTION: The machine shall be plumbed (with adequate backflow protection) according to
applicable Federal State and local regulations.
2.6.-DRAIN CONNECTION
2.6.1.- GRAVITY DRAIN
Drainage should be located lower to the machine level, at 150mm minimum.
It is convenient that the drain hose is 1,18” (30mm) inside diameter and with a minimum gradient
of 3cm/metre, see figure.
Correct
Incorrect
Incorrect
2.6.2.- DRAIN FORCE CONNECTION
This version of drain force allows an installation of the machine where the drain can be located 30
meters horizontally and 1.5 meters high from the machine's water outlet.
11
If the drain pipe runs incorrectly, the pump may not be able to drain the water, because the flow of the
pump may be influenced due to the existence of stored air within the circuit.
2.5.- ELECTRICAL CONNECTION
It is mandatory to ground the equipment. To avoid possible electric shock on individuals or
damages to the equipment, the machine should be grounded pursuant local and/or national
regulations as the case may be.
The manufacturer shall be held harmless in case of damages arising due to the lack of the ground
installation.
In case the supply cable is damaged, it should be replaced by a cable of special assembly to be
furnished by the manufacturer or after-sales service. Such replacement should be performed by
qualified technical service only.
The machine should be places in such a way as to allow a minimum space between the back and
the wall to allow an easy access and without risks to the cable plug.
Safeguard the socket. It is convenient to install adequate switches and fuses.
ATTENTION: The appliance requires an independent power supply of proper capacity. See the
nameplate for electrical specifications. Failure to use an independent power supply of proper
capacity can result in a tripped breaker, blown fuse, damage to existing wiring, or component
failure. This could lead to heat generation or fire.
Voltage is indicated in the nameplate and on the technical specifications section of this manual.
Variation on voltage above the 10% stated on the nameplate could result on damages or prevent
the machine start-up.
12
3. PRIOR CHECKING AND START-UP
3.1.- PRIOR CHECKING
a) Is the machine leveled?
b) Voltage and frequency are the same as those on the nameplate?
c) Are the drains connected and operating?
d) Will the ambient temperature and water temperature remain in the following range?
ROOM
WATER
MAXIMUM
43ºC
30ºC
MINIMUM
10ºC
10ºC
e) Is water pressure appropriate?
MINIMUM
0.1MPa (1 bar)
MAXIMUM
0.6 MPa (6 bar)
In case inlet water pressure is higher than 0.6 MPa, install a pressure regulator.
3.2.- START-UP
Once the installation instructions are followed (ventilation, site conditions, temperatures, water
quality, etc.), proceed as follows:
1.- Open the water inlet. Verify the no existence of leakages.
2.- Open the door and remove the protection elements on the shield.
3.- Verify that the curtain moves freely.
4.- Connect the machine to the power supply.
5.- Push the switch on the machine front side.
6.- Verify that there are no vibrations or frictions on the elements.
13
7.- Close door (for under counter models) / Replace the front panel in its place (for modular
models).
8.- Verify the ice cubs with the pictures below. If necessary, adjust production time switches (see
table in 4.1, switches 1-4 (tf)) to make the ice cubes with the right shape.
Too big
Just right
Too small
Damages due to the lack of maintenance and cleaning operations are not included on the
warranty.
14
4. SEQUENCE OF OPERATION
Once you connect the machine there is a time delay of 140” during which the water valve is
activated to ensure the water tray is filled. Compressor, pump will be off.
Once the time is up, it continues with a harvest cycle and the compressor starts.
After the harvest, the ice production starts, so the pump starts working. The pump, recirculates
the water from the water tray to the upper nozzles (#2) distributor which provides a fan of water
that waters each ice cube row in the evaporator (#1), in which the water starts freezing and making
the ice.
When the temperature probe (#3) at the end of the evaporator reaches an adjusted value Tc (12/-8°C) , the fabrication continues the fixed time with the combination of dip-switches 1-4 (see
table). This way we can ensure the filling of the ICE CUBE is correct in different working
conditions.
Once the production time is over the harvest phase starts. The pump stops, the hot gas and the
water inlet valves open. When the evaporator temperature probe (#3) reaches an adjusted value
15
Tg (4/0°C) the harvest continues the fixed time with the combination of dip-switches 5-7 (see
table). Water is poured over the evaporator helping unstick the ice cubes from the plastic frame.
After the harvest cycle, the machine comes back to the production cycle.
At the beginning of each Harvest cycle, the PCB checks if the Thermostat is open or close. Once
the ice bin is full and the ice cubes cover the thermostat tube (#4), the contact open, so when the
harvest begins, the machine will stop until the contact of the thermostat close again. When it
close, it starts with a harvest cycle and then it will continue with the production cycle again.
16
4.1.
CONTROL BOARD
PCB connections
Outputs
C
Compressor
B
Water pump
EA Water inlet valve
GC Hot gas valve.
Inputs
SC Evaporator temperature NTC probe
P
Safety pressure switch
N
PCB push button
T1 Stock thermostat
LED signalling
Next to each out relay there is an orange led. Signals relay on
Next to each input terminal there is an orange led marking input active.
There are four additional red leds that signals machine status (continuous) or alarm (flashing)
Status signaling . Continuous led
LE1 LE2
Start up delay
X
Ice cycle T>Tc
X
X
Ice cycle T<Tc
X
Harvest t<tg
X
Harvest t>tg
Full bin
Alarm signaling . Flashing led
LE1 LE2
Safety pressure switch
X
Ice cycle timeout
X
Harvest cycle timeout
LE3
LE4
X
X
X
LE3
LE4
X
17
Faulty temperature probe
X
Dip switches setting
dip
1-4 (sw1-
Descripción (* factory setting)
tf - ice production timer. See table
1/4)
5-7 (sw15/7)
8 (sw1-8)
9 (sw2-1)
10 (sw22)
11 (sw23)
12 (sw24)
tw - Water input timer. See table.
Tc - Evaporator temperature for timer start.
ON=-12ºC / OFF=-8ºC
Tg (Hot valve temperature). ON=+4ºC / OFF=+0ºC
Safety high pressure switch trip function.
ON= automatic reset (minimum stop 30 min.)
OFF= manual reset (power OFF-ON)
Timeout alarms operation
ON = activated
OFF = unactivated
Software selection.
Always ON
SW1
1
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
2
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
3
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ICE / WATER TIMER SETTING
TF (MIN)
SW1
4
5
6
OFF
6
OFF OFF
OFF
8
ON
OFF
OFF
10
OFF
ON
OFF
12
ON
ON
OFF
14
OFF OFF
OFF
16
ON
OFF
OFF
18
OFF
ON
OFF
20
ON
ON
ON
22
ON
24
ON
26
ON
28
ON
30
ON
32
ON
34
ON
36
TW (SEG)
7
OFF
OFF
OFF
OFF
ON
ON
ON
ON
40
60
80
100
120
140
160
180
4.2.- ALARMS
They detect operational malfunctions. They are indicated with the flashing status Leds LE1-4.
During some alarms a second operation retry attempt is carried out and if repeated again, the
18
machine will stop. Signaling should be indicated since the first failure occurs. If the second retry
attempt is ok, the signaling will switch off.
In case that a machine stop has been caused by alarm, the reset is done by switching OFF and
ON the main switch. If the dip-switch 11 OFF, time alarms are not to be followed.
4.2.1 SAFETY HIGH PRESSURE SWITCH
When the pressure contact (P) trips, instantly, all outputs switch over to off position.
When it is closed again, there are two possibilities:
- Dip-switch 10 OFF. Manual reset. The machine remains stopped until reset to Initial start-up.
- Dip-switch 10 ON. Automatic reset. The machine check pressure switch status every 30 min.
When closed, the machine will continue at the position where it was.
* Signalling: Flashing LE1.
4.2.2 LONG HARVEST
If the harvest time is longer than 5 min., the harvest is interrupted, switching over to the
production cycle. If the same happens again at the next harvest, the machine will stop.
* Signalling: Flashing in LE3.
4.2.3 ICE PRODUCTION CYCLE TIMEOUT
If during the production cycle, evaporator temperature probe has not reached the set
temperature Tc in more than 60 min, the machine will stop until reset.
* Signalling: Flashing in LE2.
4.2.4 FAULTY TEMPERATURE PROBE
If PCB detects that evaporator temperature probe is broken or unconnected, the machine will
stop
* Signalling: Flashing in LE4.
Probe type is NTC and resistance value must be 10kΩ at 25°C.
4.3 PCB PUSH BUTTON FUNCTION
Function depends on the unit status:
- Start up timer: Finish initial delay y passes to ice production stage
- Ice production. Switches to harvest
- Harvest. Switches to Ice production
Wash cycle activation.
19
Keep pressed the button while switching on main front switch. Wash cycle is activated and only
the water recirculation pump is running. There is a maximum time for this cycle of 30 min. After
this time, pump stops.
Wash cycle is finished by switching off main power.
Read cleaning and sanitizing instructions for proper usage of this function.
4.4 DRAIN FORCE
4.4.1 SEQUENCE OF OPERATION
While the machine is turn on, there is water that need to be evacuated between each cycle. There are 2
possible outlet water, one is if the ice in the storage bin melts (#1) and the other is when the production
time ends, the water electrovalve opens and fills the water tray(#2) to renovate the water. The excess of
water goes out by the overflow (#3) to the drain force water reservoir (#4).
When the water reservoir is full of water covering the 2 electrodes (#5), the pump (#6) turns on and
evacuates water for 5 seconds. After 5 seconds, the pump turns off if the electrodes are not covered by
the water, otherwise, the pump will start again for 5 seconds.
In case that the system does not work for any issue, the water will flood the ice bin. There is a ventilation
tube (#7) that allows the system to remove any air that may remain in the water reservoir. The Vent tube
must be always over the mouth of the front door (#8).
In case that the pump works for 5 min continuously, it will stop for 5 seconds automatically in order to
refrigerate.
20
The system has a way to evacuate the water inside the water reservoir in a manual way. There is a
plug(#9) in one of the plastic tube, by retiring this plug, it is possible to evacuate all the water.
Also, the system has a Check valve(#10) that does not allow the water to came back to the water
reservoir.
21
4.4.2 CONTROL BOARD
PCB connections
Outputs
B
Water pump
Inputs
Lw Water Level Sensor
LED signalling
There are two LEDs that signals machine status
Status signaling. Continuous led
LED5 LED6
PUMP RUNNING
X
WATER LEVEL SENSOR
X
ON
22
5 Refrigeration diagram
23
6 MAINTENANCE AND CLEANING PROCEDURES
It is the User’s responsibility to keep the ice machine and ice storage bin in a sanitary condition.
Ice machines also require occasional cleaning of their water systems with a specifically designed
chemical. These chemical dissolves mineral build up that forms during the ice making process.
Sanitize the ice storage bin as frequently as local health codes require, and every time the ice
machine is cleaned and sanitized.
The ice machine’s water system should be cleaned and sanitized at least twice a year.
CAUTION: Do not mix Ice Machine Cleaner and Sanitizer solutions together.
WARNING: Wear rubber gloves and safety goggles when handling Ice Machine Cleaner or
Sanitizer.
WARNING: Unit should always be disconnected during maintenance/cleaning procedures.
6.1.- CLEANING WATER DISTRIBUTION SYSTEM
a) Set the switch to the OFF position after ice falls from the evaporator at the end of a harvest
cycle or set the switch to the OFF position and allow the ice to melt off the evaporator.
CAUTION: Never use anything to force ice from the evaporator.
b) Remove all ice from the bin.
TOP PANEL
BACK
PANEL
c) (ONLY NG30) Remove the back panel and the top panel. Remove the auxiliary pipe for
drain operations near the pump and empty the water tray. Return it to their original position
to avoid water spill.
24
Pipe
for
drain
d) Remove the water overflow (#1) and empty the water tray (#2). Return it to their original
position to avoid water spill.
e) Prepare a solution of an appropriate product for the cleaning of ice machines (lime). Do
not use hydrochloric acid. We recommend the use of any approved scale removal product
prepared according to the manufacturer’s instructions as for example Scale Kleen.
f) Fill water tray with the solution
25
g) Disconnect power. Turn on the machine pushing SW3 (see picture). Let solution stand for
30-40 minutes and then switch off the machine. Disconnect power
h) Disconnect power.
i) (ONLY NG30) Remove the auxiliary pipe to drain and purge out the ice machine scale
remover and residue. Replace it.
j) Remove the water overflow (#1) and empty the water tray (#2). Return it to their original
position to avoid water spill.
k) Mix enough cleaning solution (as in point e) to clean parts and interior food zone surfaces.
l) Clean all surfaces of the shield (#3) with the cleaner solution using a brush (not a wire
26
brush) or cloth. Rinse all areas with water.
m) Clean all the interior surfaces of the freezing compartment (including storage bin) with the
cleaner solution using a brush or cloth. Rinse all areas with water.
n) Mix a solution of sanitizer using approved (EPA/FDA) sodium hypochlorite food equipment
sanitizer to form a solution with 100 - 200 ppm free chlorine yield. Below an example to
calculate the proper quantity of sanitizer to add to the water, for a household bleach 12,5%:
bleach to add 
15
15
=
= 1.2 gr/L → *0.133 = 0.16 oz/gal
%dis 12.5
o) Sanitize all the interior surfaces of the freezing compartment (including the storage bin)
applying liberally sanitizer solution, using a cloth or sponge.
p) Connect power and water supplies.
q) Fill water reservoir with the sanitizer solution.
r) Switch on machine in order to run water pump. Let solution stand for 20 minutes and switch
off.
s) (ONLY NG30) Remove the auxiliary pipe to drain and purge out the sanitizer solution and
residue. Replace it.
t) Remove the water overflow (#1) and empty the water tray (#2). Return it to their original
position to avoid water spill.
u) Fill the water reservoir with water and switch on the machine to allow water to circulate for
5 minutes and then stop the machine. Repeat this operation two more times to rinse
thoroughly.
v) Remove the auxiliary hose to drain the water. Replace it and fill the tray with water to
ensure the pump works properly.
w) (ONLY NG30) Return the back metal lid and the top panel to their position.
x) Switch on machine and discard the first two harvests.
6.2.- CLEANING WATER DISTRIBUTOR AND INJECTORS
1) Remove the curtain (#4). (Take advantage to clean it with Calklin or some non-aggressive
product, rinse, clean with bleach and rinse under the tap).
2) Remove the ice fall grill (#3). (Clean it just like the curtain).
3) PULL UP THE COLLECTOR (#1) (IT IS PRESSURE MOUNTED)
4) Remove the nozzles (#3) and the manifold covers, clean them.
5) Remove and clean the main suction filter (#5) of the pump. (IT IS PRESSURE MOUNTED)
27
6) Fit filter, injectors, and collector.
ATTENTION: IT IS VERY IMPORTANT, WHEN REPLACING THE MANIFOLD THAT THE
INJECTORS ARE COMPLETELY PERPENDICULAR TO THE SAME. IF THE CUBES AT THE
END ARE TWISTED, THEY CAN REMAIN WITHOUT WATER.
6.3.- CLEANING THE BINS
1) Disconnect the machine, close water faucet and empty storage bin of ice
2) Use the cleaner/water solution to clean all surfaces of the bin. Use a nylon brush or
cloth. Then rinse all areas thoroughly with clean water.
3) Use the sanitizer/water solution to sanitize all surfaces of the bin. Use a nylon brush or
cloth.
4) Rinse with plenty of water, dry, run the machine and open water faucet.
28
6.4.- CLEANING THE CONDENSER
AIR CONDENSER
1) Disconnect machine and close water faucet.
2) Remove the front grid by pressing the two clips placed at right side (see figure).
Front grid
3) Clean condenser using a vacuum cleaner, soft brush or low pressure air. Clean from top to
bottom, not side to side. Be careful not to bend the condenser fins.
WATER CONDENSER
The water condenser may require cleaning due to scale build-up. The cleaning procedures
require special pumps and cleaning solutions. They must be performed by qualified
maintenance or service personnel.
6.5.- EXTERNAL CLEANING OF THE MACHINE
Clean the area around the ice machine as often as necessary to maintain cleanliness. Sponge
any dust and dirt off the outside of the ice machine with mild soap and water. Wipe dry with a
clean soft cloth. A commercial grade stainless steel cleaner/polish can be used as necessary.
29
6.6.- WATER LEAKAGE CHECKING
This must be done whenever maintenance is carried out on the machine: check all water
connexions, braces, tubes and hoses in order to eliminate leaks and prevent breakages and
flooding.
6.7.- MAINTENANCE TABLE
PROCEDURE
Air condenser
cleaning
MONTHLY
QUARTERLY


HALF
YEARLY

YEARLY
BIENNIAL
DURATION


30 minutes


90 minutes



30 minutes



30 minutes
Water condenser
cleaning

Inyectors cleaning
Fabrication head
filter cleaning
Water circuit
cleaning




45 minutes
Sanitary cleaning



30 minutes


30 minutes


--
Water filter
cleaning/replacement




General unit cleaning




 Depending
on room characteristics
 Depending on water quality
 Carried out by owner
 Essential
Maintenance and cleaning procedures as well as problems derived from failing to carry them out
ARE NOT COVERED BY THE WARRANTY. Service personnel will invoice you for travel
expenses, time invested and materials required for maintenance and cleaning of unit.
30
7 USER TROUBLESHOOTING GUIDE
7.1. GENERAL QUESTIONS
PROBLEM
None of the electrics work.
Front switch ON but pilot is
OFF
None of the electrics work.
Front pilot is ON
POSSIBLE CAUSES
SOLUTION
The machine is not plugged in.
Plug the machine and verify
socket power
Full bin status (LE4 on) with no ice.
Faulty or bad adjusted thermostat
PCB alarm.
Adjust / replace
Check led code
PCB alarms. See point 4.2
High pressure switch
NTC probe error
Ice cycle timeout
Harvest cycle timeout
Wrong cycle sequence
White and partially formed
cubes. Not uniform nozzles
spray
Dirty condenser
Defective fan
Defective safety / cooling switch
Defective probe
Defective probe plug connection
No frozen evaporator
NTC probe faulty contact
Faulty hot gas valve/coil
Harvest do not happen
Dip-switch 2-4 OFF
Dirty nozzles
Dirty suction filter
Lack of water at cycle´s end
No water input
No water at nozzles
Too large cubes
Too small
cubes
Uniform
Not Uniform
Not all cubes are released
Faulty pump
Overflow pipe out of place or leaking
Freezing time too large
Probe makes bad contact
Freezing time too short
Low refrigeration performance
Poor refrigerator performance
Harvest time too short
Freezing time too large (Ice slab)
Faulty hot gas valve
Lack of water input
Low ice production
All the electrics work except
compressor.
All the electrics work but the
compressor “klixons” (cycles
intermitenttly).
Faulty fan pressostat (non stop)
Blocked condenser or air access to
condenser
Faulty hot gas valve, doesn’t close totaly.
Low performance refrigeration system
Faulty contact.
Faulty relay .
Faulty “Klixon”.
Faulty compressor.
Voltage too low.
Obstruction in air circulation.
Start / run capacitor faulty.
Cooling presostat faulty or wrongly
adjusted.
Clean condenser
Check. Replace
Check. Replace
Check. Replace
Check
Check refrigeration system
Check probe fitting
Check. Replace
Check water inlet strainer
Set ON
Clean / replace
Clean
Check water leaks
Check water inlet strainer
Check supply and water valve
operation
Check / replace
Check tube and o-ring
Adjust by dip-switches
Position well
Adjust by dip-switches
Check refrigeration system
Adjust by dip-switches
Adjust by dip-switches
Check / replace
Check net pressure and input
filters
Check / replace
Clean condenser; improve air
circulation
Replace
Check
Check wiring.
Replace relay.
Replace Klixon.
Replace compressor.
Check voltage.
Move machine to a correct
position.
Replace condenser.
Replace or adjust presostat.
31
7.2. DRAIN FORCE
The bin is flooded
The check valve is blocked
The pump is broken
The electrodes do not detect water
The pump is always turn on
The electrodes detect water even if
there is no water
Clean or Replace it
Replace it
Disassemble and clean, if
problem persist, replace it
Disassemble and clean the
electrodes
32
8 TECHNICAL DATA
OTHER TECHNICAL INFORMATION
For more technical information scan the following QR code or click the link:
•
•
•
•
•
Specification sheets
User manual
Exploded views
CAD / REVIT drawings
Technical videos
https://n9.cl/5m2cj
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