Bartscher F 80C User manual

E ECTRONIC MODU AR
F AKERS
SERVICE MANUA
104409 F80
104436 F125
71503135-0-000 service Flakers GB

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3
TABLE OF CO TE TS
Specification F 80C pagina 4
Specification F 125C 5
Specification F 120 6
Specification F 200 7
Specification SF 300 8
Specification SF 500 9
Specification SFN 1000 10
GE ERAL I FORMATIO A D I STALLATIO
Introduction 11
Unpacking and Inspection - Ice maker 11
Unpacking and Inspection - Storage bin 11
ocation and levelling 12
Electrical connections 13
Water supply and drain connection 13
Final ceck list 13
Installation pratice 14
OPERATI G I STRUCTIO S
Start up 15
Operations checks 17
PRI CIPLE OF OPERATIO (how it works)
Water circuit 20
Refrigerant circuit 21
Mechanical system 23
Operating pressures 24
Components description 25
ADJUSTME T, REMOVAL A D REPLACEME T PROCEDURES
Adjustment of the evaporator water level 29
Replace of the gear motor magnetic sensor 29
Replace of auger, water seal, bearing and coupling 29
Replacement of the gear motor assy 30
Replacement of freezing cylinder 31
Wiring diagram 32
Service diagnosis 36
MAI TE A CE A D CLEA I G I STRUCTIO S
General 38
Icemakers 38
Cleaning instructions of water system 38

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TECH ICAL SPECIFICATIO
ELECTRO IC MODULAR
FLAKERS mod. F80 (R 134a)
Produzione di ghiaccio in 24 ore fino a
Ice produced for 24 hours up to
Eisproduktion in 24 Stunden bis zu
Production de glace en 24 h jusqu’à
Produccion de hielo en las 24 horas hasta
Raffreddamento unità condensatrice aria o acqua: consumo n. 20 litri per ora*
Condensing unit cooling air or water: consumption n. 20 litres per hour*
Kondensatoreinheit Luft oder Wasser: Verbrauch n. 20 liter pro Stunde*
Refroidissement de l’unité de condensation air ou eau: consommation n. 20 litres par heure*
Refrigeración de la unidad condensadora aire o agua: consumo n. 20 litros para hora*
Potenza assorbita/Absorbed power/Leistungsaufnahme
Puissance absorbée/Potencia Absorbida
Refrigerante/Refrigerant/Kältemittel
Réfrigérant/Refrigerant
Attacco entrata acqua/Water iniet connection
Anschluss für Wasserzufluss/Prise entrée d’eau/conexión entrada agua
Attacco scarico acqua/Water output connection
Anschluss für Wasserabfluss/Prise écoulement d’eau
Conexión desague
Alimentazione monofase/Single phase input/
Einphasige Spannung/Alimentation monophase
Alimentación monofásica
Alimentazione voltaggi speciali: a richiesta
Extra voltages: on request
Andere Spannungen: Lieferbar auf Wunsch
Alimentation voltages spéciaux: sur demande
Otros voltajes especiales: según pedido
Capacità deposito - Storage bin capacity
Inhalt des Vorrats-Eisbehänders
Capacité de la réserve - Capacidad del deposito
Carrozzeria
External structure
Ausfühnrung inox
Carrosserie
Carroceria
Peso netto/ et weight/ etto Gewcht
Poids net/Peso neto
PRODUZIONE DI GHIACCIO
ICE PRODUCTION
EIS PRODUKTION
PRODUCTION DE G ACE
PRODUCICON DE HIE O
RAFFR. AD ACQUA/WATER COOLED
WASSERGEKÜHLT/REFR. A EAU
REFR. A AGUA
Temperatura acqua/Water temperature
Wassertemperatur/Température eau
Temperatura agua
Prod. ghiaccio in 24 h/Ice prod. per 24 h
Eisprod. in 24 h/Prod. de glace en 24 h
Prod. de hielo en 24 h
RAFFR. AD ARIA/AIR COOLED
LUFTGEKÜHLT/REFR. A AIR
REFR. A AIRE
Temperatura acqua/Water temperature
Wassertemperatur/Température eau
Temperatura agua
Prod. ghiaccio in 24 h/Ice prod. per 24 h
Eisprod. in 24 h/Prod. de glace en 24 h
Prod. de hielo en 24 h
° 32° 21° 15° 10°
10° 78 84 87 90 kg
21° 72 78 81 84 kg
32° 58 63 66 68 kg
38° 48 52 54 56 kg
° 32° 21° 15° 10°
10°
76 81 84 86 kg
21° 72 77 80 82 kg
32° 68 74 76 78 kg
38° 64 70 71 72 kg
Temperatura ambiente Ambient temperature Raumtemperatur Température ambiante Températura ambiente
Temperatura ambiente Ambient temperature Raumtemperatur Température ambiante Températura ambiente
(*) con temperatura acqua 15 °C
with water temperature 15 °C
mit Wassertemperatur 15 °C
avec température eau 15 °C
con temperatura agua 15 °C
kg. 90
W 400
R 134a
3/4” Gas
mm. Ø 20
220V-240V - 50 Hz
kg. 53
kg. 20
Dimensioni / Dimensions / Masse / Dimensions / Dimensiones
835
600
570
695
624
218
5044
570

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5
TECH ICAL SPECIFICATIO
ELECTRO IC MODULAR
FLAKERS mod. F125 (R 134a)
Produzione di ghiaccio in 24 ore fino a
Ice produced for 24 hours up to
Eisproduktion in 24 Stunden bis zu
Production de glace en 24 h jusqu’à
Produccion de hielo en las 24 horas hasta
Raffreddamento unità condensatrice aria o acqua: consumo n. 24 litri per ora*
Condensing unit cooling air or water: consumption n. 24 litres per hour*
Kondensatoreinheit Luft oder Wasser: Verbrauch n. 24 liter pro Stunde*
Refroidissement de l’unité de condensation air ou eau: consommation n. 24 litres par heure*
Refrigeración de la unidad condensadora aire o agua: consumo n. 24 litros para hora*
Potenza assorbita/Absorbed power/Leistungsaufnahme
Puissance absorbée/Potencia Absorbida
Refrigerante/Refrigerant/Kältemittel
Réfrigérant/Refrigerant
Attacco entrata acqua/Water iniet connection
Anschluss für Wasserzufluss/Prise entrée d’eau/conexión entrada agua
Attacco scarico acqua/Water output connection
Anschluss für Wasserabfluss/Prise écoulement d’eau
Conexión desague
Alimentazione monofase/Single phase input/
Einphasige Spannung/Alimentation monophase
Alimentación monofásica
Alimentazione voltaggi speciali: a richiesta
Extra voltages: on request
Andere Spannungen: Lieferbar auf Wunsch
Alimentation voltages spéciaux: sur demande
Otros voltajes especiales: según pedido
Capacità deposito - Storage bin capacity
Inhalt des Vorrats-Eisbehänders
Capacité de la réserve - Capacidad del deposito
Carrozzeria
External structure
Ausfühnrung inox
Carrosserie
Carroceria
Peso netto/ et weight/ etto Gewcht
Poids net/Peso neto
PRODUZIONE DI GHIACCIO
ICE PRODUCTION
EIS PRODUKTION
PRODUCTION DE G ACE
PRODUCICON DE HIE O
RAFFR. AD ACQUA/WATER COOLED
WASSERGEKÜHLT/REFR. A EAU
REFR. A AGUA
Temperatura acqua/Water temperature
Wassertemperatur/Température eau
Temperatura agua
Prod. ghiaccio in 24 h/Ice prod. per 24 h
Eisprod. in 24 h/Prod. de glace en 24 h
Prod. de hielo en 24 h
RAFFR. AD ARIA/AIR COOLED
LUFTGEKÜHLT/REFR. A AIR
REFR. A AIRE
Temperatura acqua/Water temperature
Wassertemperatur/Température eau
Temperatura agua
Prod. ghiaccio in 24 h/Ice prod. per 24 h
Eisprod. in 24 h/Prod. de glace en 24 h
Prod. de hielo en 24 h
° 32° 21° 15° 10°
10° 102 111 115 120 kg
21° 95 104 108 110 kg
32° 84 90 94 97 kg
38° 75 81 85 87 kg
° 32° 21° 15° 10°
10°
97 108 117 120 kg
21° 95 105 115 117 kg
32° 90 100 107 110 kg
38° 87 97 102 105 kg
Temperatura ambiente Ambient temperature Raumtemperatur Température ambiante Températura ambiente
Temperatura ambiente Ambient temperature Raumtemperatur Température ambiante Températura ambiente
(*) con temperatura acqua 15 °C
with water temperature 15 °C
mit Wassertemperatur 15 °C
avec température eau 15 °C
con temperatura agua 15 °C
kg. 120
W 480
R 134a
3/4” Gas
mm. Ø 20
220V-240V - 50 Hz
kg. 64
kg. 27
Dimensioni / Dimensions / Masse / Dimensions / Dimensiones
680
90595~
750
510 680
150
90
45

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6
A I TRODUCTIO
the step-by-step procedures for the installation,
start- up and operation, maintenance and
cleaning for the F80 - F125 Modular Icemakers.
The Electronic Flakers and Superflakers are
quality designed, engineered and manufactu-
red. Their ice making systems are thoroughly
tested providing the utmost in flexibility to fit the
needs of a particular user.
B. U PACKI G A D I SPECTIO
Icemaker
1 all you rauthorizedI Distributor or Dealer for
proper installation.
2 Visually inspect the exterior of the packing
and skid. Any severe damage noted should
be reported to the delivering carrier and a
concealed damage claimformfilled in subjet
to inspection of the contents with the carrier’s
representative present.
3 a) ut and remove the plastic strip securing
the carton box to the skid.
b) ut open the top of the carton and remove
the polystyre protection sheet.
c) Pull out the polystyre posts from the cor-
ners and then remove the carton.
d) Lift the whole carton and pull it out from
the device.
4 Remove top and sides panels of the unit and
inspect for any concealed damage.
Notify carrier of your claim for the concealed
damage as stated in step 2 above.
5 Remove all internal support packing and
masking tape.
6 heck that refrigerant lines do not rub again-
st or touch other lines or surfaces, and that
the fan blades move freely.
7 heck that the compressor fits snugly onto
all its mounting pads.
8 See data plate on the rear side of the unit and
check that local main voltage corresponds
with the voltage specified on it.
NOTE. To retain the safety and performance
built into this icemaker, it is important that
installation and maintenance be conducted
in the manner outlined in this manual.
GE ERAL I FORMATIO A D I STALLATIO

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C. LOCATIO A D LEVELLI G
1 Position the storage bin in the selected per-
manent location. riteria for selection of loca-
tion include:
a) Minimum room temperature 10° (50°F)
and maximum room temperature 40°
(100°F).
b) Water inlet temperatures: minimum 5°
(40°F) and maximum 35° (90°F).
c) Well ventilated location for air cooled
models (clean the air cooled condenser at
frequent intervals).
d) Service access: adequate space must be
left for all service connections through the
rear of the ice maker.
A minimum clearance of 15 cm (6")must be
left at the sides of the unit for routing cooling
air drawn into and exhausted out of the com-
partment to maintain proper condensing
operation of air cooled models.
2 Level the Storage Bin Assy in both the left to
right and front to rear directions by means of
the adjustable legs.
D. ELECTRICAL CO ECTIO S
See data plate for current requirements to deter-
mine wire size to be used for electrical con-
nections. All icemakers require a solid earth
wire.
All ice machines are supplied from the factory
completely pre-wired and require only electrical
power connections to the wire cord provided at
the rear of the unit.
Make sure that the ice machine is connected to
its own circuit and individually fused (see data
plate for fuse size).
The maximum allowable voltage variation
should not exceed -10% and +10% of the data
plate rating. Low voltage can cause faulty
functioning and may be responsible for serious
damage to the overload switch and motor win-
dings.
heck voltage on the line and the ice maker’s
data plate before connecting the unit.
WARNING. This Modular Flaker and
uperflaker is designed for indoor installa-
tion only. Extended periods of operation at
temperature exceeding the following limita-
tions will constitute misuse under the terms
of the Manufacturer’s Limited Warranty
resulting in LO of warranty coverage.
NOTE: This ice flake maker contains sensiti-
ve and highly precise parts. Knocks and
heavy blows must therefore be avoided.
NOTE. All external wiring should conform to
national, state and local standards and regu-
lations.

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E. WATER SUPPLY A D DRAI
CO ECTIO S
When choosing thewater supply for the ice flaker
consideration should be given to:
a) Length of run
b) Water clarity and purity
c) Adequate water supply pressure
Since water is the most important single ingre-
dient in producting ice you cannot emphasize
too much the three items listed above.
Low water pressure, below 1 bar may cause
malfunction of the ice maker unit.
Water containing excessive minerals will tend to
produce scale build-up on the interior parts of
the water system while too soft water (with too lo
contents of mineral salts), will produce a very
hard flaker ice.
Dark chlorinated or iron-containing water can be
improved through the active carbon filter
If water contains a high level of impurities, it is advi-
sable to consider the installation of an appropriate
water filter or conditioner.
WATER SUPPLY
onnect the 3/4" GAS male of the water inlet fit-
ting,usingthefoodgradeflexiblehosesupplied to
thecoldwater supply linewith regularplumbing
fitting and a shut-off valve installed in an acces-
sible position between the water supply line and
the unit.
If water contains a high level of impurities, it is
advisable to consider the installation of an
appropriate water filter or conditioner.
WATER SUPPLY - WATER COOLED MODELS
The water cooled versions of Ice Makers require
two separate inletwater supplies, one for the
water making the flaker ice and the other for the
water cooled condenser.
onnect the 3/4" GAS male fitting of the water
inlet, using the flexible hose supplied to the cold
water supply linewith regular plumbing fitting
and a shut-off valve installed in an accessible
position between the water supply line and the
unit.
WATER DRAI
The recommended drain tube is a plastic or fle-
xible hose with 18mm(3/4") I.D. which runs to an
open trapped and vented drain. When the drain
is a long run, allow 3 cm pitch per meter (1/4"
pitch per foot). Install a vertical open vent on
drain line high point at the unit drain connection
to ensure good draining.
Theidealdrainreceptacleisatrappedandvented
floor drain.
WATER DRAI - WATER COOLED MODELS
onnect the 3/4" GAS male fitting of the con-
denser water drain, utilizing a second flexible
hose to the open trapped and vented drain.
This additional drain linemust not interconnect to
any other of the units drains.
F. FI AL CHECK LIST
1 Is the unit in a room where ambient tempera-
tures are within a minimum of 10° (50°F)
even in winter months?
2 Is there at least a 15 cm (6") clearance
around the unit for proper air circulation?
3 Is the unit level? (IMPORTANT)
NOTE. The water supply and the water drain
must be installed to conform with the local
code. In some case a licensed plumber and/
or a plumbing permit is required.
ATTENTION. The use of fully hardened
water (without or nearly without mineral
salts) with electric cable capability of
under 30 μ blocks the flow of low voltage
electricity between the lowest sensors in
the swimming pool and therefore causes
the device to be switched off or to stop
working

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4 Have all the electrical and plumbing con-
nections been made, and is the water supply
shut-off valve open?
5 Has the voltage been tested and checked
against the data plate rating?
6 Has the water supply pressure been che-
cked to ensure a water pressure of at least 1
bar (14 psi). been checked to ensure that the
compressor is snugly fitted onto the moun-
ting pads?
8 heck all refrigerant lines and conduit lines
to guard against vibrations and possible fai-
lure.
9 Have the bin liner and cabinet been wiped
clean?
10 Has the owner/user been given the User
Manual and been instructed on the importan-
ce of periodic maintenance checks?
11 Has the Manufacturer’s registration card
been filled in properly?
heck for correct model and serial number
against the serial plate and mail the registra-
tion card to the factory.
12 Has the owner been given the name and the-
phone number of the authorized Service
Agency serving him?
G. I STALLATIO PRACTICE
WARNING. This icemaker is not designed for outdoor installation and will not function in
ambient temperatures below 10°C (50°F) or above 40°C (100°F). This icemaker will malfunc-
tion with water temperatures below 5°C (40°F) or above 35°C (90°F).
1 Hand shut-off valve
2 Water filter
3 Water supply line
4 3/4" GAS male fitting
5 Power line
6 Main switch
7 Drain fitting
8 Vented drain
9 Vented drain
10 Open trapped vented drain

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OPERATING INSTRUCTIONS
START UP
After having correctly installed the ice maker and
completed the plumbing and electrical
connections, perform t he f ollowing “Start-up” pro-
cedure.
A. Open the water supply line shutoff valve
and put the unit under electrical power by moving
the main switch, on the power supply line, to the
ON position.
The first LED - GREEN - will glow to signal that
unit is under power.
NOTE. Every t ime t he unit i s put under power,
after being kept for sometime in shut-off
conditions (electrically disconnected) the
RED LED will blink for 3 minutes (60' on MF
66 only) after which the unit will start up with
the immediate operation of the gear motor
assembly and, after few seconds, of the
compressor (Fig.1).
B. Elapsed the stand by period the unit starts
operating with the activation in sequence of the
following assemblies:
GEAR MOTOR/S
COMPRESSOR
FAN MOTOR/S (if unit is an air cooled version)
kept under control by the condenser temperatu-
resensorwhich has i t s probewithint he condenser
fins (Fig.2).
C. After 2 or 3 minutes from the compressor
start up, observe that flaker ice begins dropping
off the ice spout to fall through the ice chute into
the storage bin.
NOTE. The first ice bits that drop into the ice
storage bin are not so hard as t he e v aporating
temperature has not yet reached the correct
operating value. It is necessary to allow the
ice - just made - to cure itself and wait for
about ten minutes for the evaporating tem-
perature to reach the correct value so to
make more hard bits of ice.
FIG. 1
2
1
L
N
COMPRESSOR
9
10
11
12
13
3
4
5
6
7
8
CONTACTOR COIL
GEAR MOTOR
FAN MOTOR
ELECTRONIC
CARD
RELAYS
TRIAC
RESET
S E N S O R S
DATA PROCESSOR
WATER
LEVEL
GEAR MOTOR ROTATION
CONDENSER TEMP.
EVAPORATOR TEMP.
ICE LEVEL CONTROL
TRANSF.
T>1°C
11
10
9
1
2
L
N
8
7
6
5
4
3
13
12

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11
FIG. 3
FIG. 2
2
1
L
N
COMPRESSOR
9
10
11
12
13
3
4
5
6
7
8
CONTACTOR COIL
GEAR MOTOR
FAN MOTOR
ELECTRONIC
CARD
RELAYS
TRIAC
RESET
S E N S O R S
WATER
LEVEL
GEAR MOTOR ROTATION
CONDENSER TEMP.
EVAPORATOR TEMP.
ICE LEVEL CONTROL
TRANSF.
T 40÷50°C
DATA PROCESSOR
2
1
L
N
COMPRESSOR
9
10
11
12
13
3
4
5
6
7
8
CONTACTOR COIL
GEAR MOTOR
FAN MOTOR
ELECTRONIC
CARD
RELAYS
TRIAC
RESET
S E N S O R S
DATA PROCESSOR
WATER
LEVEL
GEAR MOTOR ROTATION
CONDENSER TEMP.
EVAPORATOR TEMP.
ICE LEVEL CONTROL
TRANSF.
T>-1°C
11
10
9
1
2
L
N
8
7
6
5
4
3
10
9
1
2
L
N
8
7
6
5
4
3
12
11
13
13
12

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12
NOTE. If, after ten minutes from the
compressor start-up, the evaporating tem-
perature has not dropped down to a value
lower than -1
°
C (30
°
F) the evaporating tem-
perature sensor detects such an abnormal
situation and stops consequently the unit
operation (first the compressor and 3' later
the gear reducer).
In t his c ircustanc e , t he5th w arningYELLOW
LED will blink.
The machine will remain in OFF mode for
one hour then it will restart automatically.
In case the unit trips OFF again in alarm for
3 times in 3 hours, the machine SHUTS OFF
DEFINITIVELY.
After having diagnosed and eliminated the
cause of the too hi evaporating temperature
(insufficient refrigerant in the system or
compressor not running) it is necessary to
unplug and plug in again to restart the
machine. The unit, before resuming the
normal operation, will go through the usual
3 minutes STAND-BY period.
OPERATION CHECKS UPON THE UNIT
START UP
D. Remove front service panel and, if
necessary, install the refrigerant service gauges
on the corresponding service valves to check
both the HI and LO refrigerant pressures.
NOTE. On air cooled models, the condenser
temperature sensor, which is located within
the condenser fins, keeps the head
(condensing) pressure between preset
values.
In the event of condenser clogged - such to
prevent the proper flow of the cooling air - or,
in case the fan motor is out of operation, the
condenser temperature rises and when it
reaches 70
°
C (160
°
F) for air cooled version -
and 60
°
C (140
°
F)- for water cooled version -
the condenser temperature sensor shuts-off
the ice maker (first the compressor and 3'
later the gear reducer) with the consequent
light-up o f t he R E D W ARNING LIGHT ( F ig.3).
The machine will remain in OFF mode for
one hour then it will restart automatically.
In case the unit trips OFF again in alarm for
3 times in 3 hours, the machine SHUTS OFF
DEFINITIVELY.
After having diagnosed the reason of the
temperature rise and removed its cause, it is
necessary to proceed as per the previous
“NOTE” to start up again the operation of the
ice maker.
E. Check for the correct CUT-OUT and
CUT - I N o f t he water l evel sensor by f irst s hutting
closed the water shutoff valve on the water
supply line.
FIG. 4
2
1
L
N
COMPRESSOR
9
10
11
12
13
3
4
5
6
7
8
CONTACTOR COIL
GEAR MOTOR
FAN MOTOR
ELECTRONIC
CARD
RELAYS
TRIAC
RESET
S E N S O R S
WATER
LEVEL
GEAR MOTOR ROTATION
CONDENSER TEMP.
EVAPORATOR TEMP.
ICE LEVEL CONTROL
TRANSF.
T>75°C
DATA PROCESSOR
11
10
9
1
2
L
N
8
7
6
5
4
3
13
12

GB
13
After 3 minut e s t he unit resumes i ts t o t al operation
with the immediate start-up of the gear motor
and, few seconds later, of the compressor.
F. Check for the correct operation of the
electronic eye (one per each ice chute on model
MF 66) of the optical ice level control, by closing
the bottom opening of the vertical ice chute.
Wait the built up of the ice into the ice chute till it
cuts the light beam of the sensing "eyes".
This interruption will c ause an immediate blinking
of the Bin Full YELLOW LED located on the front
of the P.C. Board and after about 6 seconds
causes the shutoff of the unit (compressor first
and 3' later the gear reducer) with the
simultaneous lighting (steady) of the Same LED
signalling the full bin situation (Fig.5).
Discharge the ice from the ice chute so to resume
the light beam previously interrupted (YELLOW
LED blinking fast) and after about 6 seconds the
flaker will re-start - t hrough t he 3 minutes S TAND-
BY period - wit h t he e xtinguishing o f t he Y E LLOW
LED.
This will cause a gradual decrease of the water
level in the float reservoir and as soon as the
level gets below the two vertical metal pins, the
flaker stops to operate (compressor first and 3'
later t he gear reducer) and t he YELLOW w arning
LED will glow to signal the shortage of water
(Fig. 4)
NOTE. The water level sensor detects the
presence of water in the float reservoir and
confirms it to the micro processor by
maintaining a low voltage current flow
between the two metal pins using the water
as conductor.
WARNING. The use of de-mineralized
water (water with no salt content) having
an electrical conductivity lower than 30
μS, will cause break with the consequent
CUT-OUT of the flaker and the glowing of
the YELLOW LED of water shortage, even
with water in the reservoir.
Opening the water supply line shutoff valve to fill
up again the float reservoir, the YELLOW LED
goes off while the RED LED starts blinking.
FIG. 5
2
1
L
N
COMPRESSOR
9
10
11
12
13
3
4
5
6
7
8
CONTACTOR COIL
GEAR MOTOR
FAN MOTOR
ELECTRONIC
CARD
RELAYS
TRIAC
RESET
S E N S O R S
WATER
LEVEL
GEAR MOTOR ROTATION
CONDENSER TEMP.
EVAPORATOR TEMP.
ICE LEVEL CONTROL
TRANSF.
DATA PROCESSOR
11
10
9
1
2
L
N
8
7
6
5
4
3
13
12

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14
NOTE. The ICE LEVEL CONTROL
(INFRARED SYSTEM) is independent of the
temperature however, the reliability of its
detection can be affected by external light
radiations or by any sort of dirt and scale
sediment which may deposit directly on the
light source and on the receiver.
To prevent any possible ice maker
malfunction, it is advisable to locate the unit
where it can't be reached by any direct light
beam or light radiation and to follow the
instructions for the periodical cleaning of the
light sensor elements as detailed in the
MAINTENANCE AND CLEANING PROCE-
DURES.
NOTE. In the front of the PC Board is located
asmall I/R Trimmer directly connected with
the optical Ice level control. By means of its
screw it is possible to modify the signal
received from the Ice Level control so to
overcame some problem caused by dirt and/
or low power supply.
When adjusted it is very important to check
for its correct operation using ice (NOT
HAND) to break the Infrared Beam. In case
the machine doesn't stop it means that the
new setting is too much powerfull and need to
be reduced alway s b y means o f t he I/R T rimmer.
M. If previously installed, remove t he refrigerant
service gauges and re-fit the unit service panels
previously removed.
N. Instruct the owner/user on the general
operation of the ice machine and about the
cleaning and care it requires.
FIG. 6
2
1
L
N
COMPRESSOR
9
10
11
12
13
3
4
5
6
7
8
GEAR MOTOR
FAN MOTOR
ELECTRONIC
CARD
RELAYS
TRIAC
RESET
S E N S O R S
WATER
LEVEL
GEAR MOTOR ROTATION
CONDENSER TEMP.
EVAPORATOR TEMP.
ICE LEVEL CONTROL
TRANSF.
DATA PROCESSOR
REINSERZIONE
8

FLOAT TANK
FLOAT VALVE
FREEZER
WATER INLET LINE
FREEZER
WATER
FEED LINE
ICE SPOUT
GB
15
FREEZER WATER
FEED LINE
FREEZER
FLOAT VALVE
ICE SPOUT
FLOAT TANK
FREEZER
FLOAT TANK
FLOAT VALVE
WATER INLET LINE
WATER INLET LINE
ICE SPOUT
FREEZER
WATER
FEED LINE
W
WATER CIRCUIT
The water enter in the machine through the
water inlet fitting which incorporates a strainer -
located at the rear side of the cabinet - then it
goes to the water reservoir flowing through a
float valve.
The float reservoir is positioned at the side of the
freezing at such an height to be able to maintain
a constant water level. The water flows from the
reservoir into the bottom inlet of the freezer to
sorround the stainless steel auger which is verti-
cally fitted in the center of the freezer.
In the freezer the incomingwater gets chilled into
soft (slush) ice which is moved upward by the
rotating action of the auger. The auger rotates
counter-clockwisewithin the freezer powered by
a direct drive gear motor and carries the ice
upward along the refrigerated freezer innerwalls
andbydoingso theice gets progressively thicker
and harder.
The ice, being costantly lifted up, meet the teeth
of the ice breakerwhich is fitted on the top end of
the auger,where it gets compacted, cracked and
forced to change from vertical into horizontal
motion to be discharged out, through the ice
spout and chute, into the storage bin.
NOTE. The presence of thewater in the float
reservoir is detected by a system of two sen-
sors which operates in conjunction with the P. .
Board. The two sensors use the water as a con-
ductor to maintain a low voltage current flow
between them. In case the water used is very
soft (de-mineralized) or the float reservoir gets
empty the current flow between the sensors
become so weak or is no longer maintained
that, as consequence, the P. . Board shutoff
the flaker operation with the simultaneous
glowing of the
YELLOW LED signalling
“Shortage of water”.
PRI CIPLE OF OPERATIO

GB
16
By running the ice maker, i.e. by putting the unit
under power, starts the automatic and conti-
nuous icemaking process which would not stop
until the ice storage bin gets filled-up to the
level of the control “eyes” located on the ice
chute. As the ice level raises to interrupt the
light beam running between the two infrared
leds, the unit stops after six seconds (compres-
sor first and 3' later the gear reducer), with the
simulteneous glowing of the YELLOW LED
signalling the “Full Bin” situation.
As some ice gets scooped out from the storage
bin, the light beam between the two sensors
resumes (fast blinking of YELLOW LED) and six
seconds later the ice machine restarts the ice
making process - going always through the 3'
stand by - and the YELLOW LED goes off.
REFRIGERA T CIRCUIT
The hot gas refrigerant discharged out from the
compressor reaches the condenser where,
being cooled down, condenses into liquid.
Flowing into the liquid line it passes through the
drier filter, then it goes all theway throughtheca-
pillary tubewhere it looses some of its pressure
so that its pressure and temperature are lowered.
Next, the refrigerant enters into the evaporator
coil wrapped around the freezer inner tube.
The water being constantly fed at the interior of
thefreezer inner tube,exchange heat with the
refrigerant circulating into the evaporator coil,
this cause the refrigerant to boil-off and evapora-
te, there by it changes from liquid into vapor.
The vapor refrigerant then passes through the
suction accumulator and through the suction line
where the refrigerant exchanges heatwith the
one flowing into the capillary tube (warmer) befo-
rebeingsuckedinto thecompressor to be recircu-
lated.
The refrigerant head pressure is kept between
two pre-set values (8÷9 bar - 110÷125 psig on
F120) by the condenser temperature sensorwhi-
ch has its probe locatedwithin the condenser fins
- in air cooled versions.
This condenser temperature sensor, when sen-
ses a rising of the condenser temperature
beyond thepre-fixedlimit,changesits electrical
resistance and send a low voltage power flow to
the MICROPROCESSOR of the P. . Board
which energizes,
through a TRIAC, the Fan Motor in ON-OFF
mode.
On the water cooled versions, the refrigerant
head pressure is kept at the constant value of 8.5
bar (120 psig) on F120 by themetered amount
ofwater passing through the condenserwhich is
regulated by the action of theWater Regulating
Valve that has its capillary
tube connected to the
liquid refrigerant line. As pressure increases,
the water regulating valve opens to increase the
flow of cooling water to the condenser.
NOTE. The interruption of the light beam
between the two light sensors is immediately
signalled by the blinking of the
BIN FULL
YELLOW LED located on the front of the
P. . Board.
After about
6" of steady interruption of the
light beam the unit stops and the “Full Bin”
YELLOW LED
glows steady.
The six seconds of delay prevent the unit
from stopping for any undue reason like the
momentarily interruption of the light beam
caused by the flakes that slides along the ice
spout before dropping into the bin.
ACCUMULATOR
CAPILLARY TUBE
DISCHARGE LINE
EVAPORATOR
FAN MOTOR
COMPRESSOR
CONDENSER
SUCTION LINE

GB
17
FIG. 6
2
1
L
N
COMPRESSOR
9
10
11
12
13
3
4
5
6
7
8
CONTACTOR COIL
GEAR MOTOR
FAN MOTOR
ELECTRONIC
CARD
RELAYS
TRIAC
RESET
S E N S O R S
WATER
LEVEL
GEAR MOTOR ROTATION
CONDENSER TEMP.
EVAPORATOR TEMP.
ICE LEVEL CONTROL
TRANSF.
T<1°C
DATA PROCESSOR
11
10
9
1
2
L
N
8
7
6
5
4
3
13
12
The refrigerant suction or Lo-pressure sets - in
normal ambient conditions - on the value of 0.5
bar (7 psig) on F120 after few minutes from the
unit start-up.
This value can vary of 0.1 or 0.2 bar (1.5÷3
psig) in relation to the water temperture varia-
tions influencing the freezer cylinder.
NOTE. In case the condenser temperature
probe senses that the condenser temperature
has rised to 70° on air cooled version - or
60° onwater cooled version - for one of the fol-
lowing abnormal reasons:
CLOGGED CONDEN ER (Air cooled version)
IN UFFICIENT FLOW OF COOLING
WATER (Water cooled version)
FAN MOTOR OUT OF OPERATION (Air coo-
led version)
AMBIENT TEMPERATURE HIGHER THEN
43°C (110°F)
it causes the total and immediateSHUT-OFF of
the machine (compressor first and gear motor
3' later) in order to prevent the unit from opera-
ting in abnormal and dangerous conditions.
When the ice maker stops on account of this
protective device, there is a simultaneous
glowing of the
RED LED , warning the user of
the Hi Temperature situation.
The machine will remain in OFF mode for one
hour then it will restart automatically.
In case the unit trips OFF again in alarm for 3
times in 3 hours, the machine SH TS OFF DEFI-
NITIVELY.
After having eliminated the source of the exces-
sive condenser temperature, to restart the ice-
machine it is necessary to unplug and plug in
again.
The RED LED starts blinking and three minutes
later the flaker unit resume its normal operating
mode. The condenser temperature sensor has a
further safety function which consist in preven-
ting the unit from operating in Lo-ambient condi-
tions i.e. when the condenser temperature -
equivalent to the ambient temperature - is lower
then 1°C 34°F (Fig.6).
As soon as the ambient temperature rises up to
5 °C the P.C. Board restarts automatically the
machine on the three minutes starting time.

GB
18
FIG. 7
2
1
L
N
COMPRESSOR
9
10
11
12
13
3
4
5
6
7
8
CONTACTOR COIL
GEAR MOTOR
FAN MOTOR
ELECTRONIC
CARD
RELAYS
TRIAC
RESET
S E N S O R S
WATER
LEVEL
GEAR MOTOR ROTATION
CONDENSER TEMP.
EVAPORATOR TEMP.
ICE LEVEL CONTROL
TRANSF.
DATA PROCESSOR
11
10
9
1
2
L
N
8
7
6
5
4
3
13
12
MECHA ICAL SYSTEM
The mechanical system of the Flaker machines
consists basically of a gear motor assembly
which drives, through a ratched coupling, a
worn shaft or auger placed on its vertical axis
within the freezing cylinder.
The gear motor is made of a single phase elec-
tric motor with a permanent capacitor. This
motor is directly fitted in the gear case through
which it drives - in counter clockwise rotation at
a speed of 9.5 r.p.m. - the freezer auger being
linked to it by the ratched coupling.
Too low ambient and water temperature (well
below the limitations of respectively 10° and
5° - 50°F and 40°F) or frequent interruptions
of the water supply to the freezing cylinder
(clogging of thewater hose connecting the
float reservoir to the water inlet at the bottom
of the freezer) may cause the ice to get too
hard and compact loosing fluidity and the-
reby seizing the auger.
This situation will put under excessive strain
and load the entire drive system and freezer
bearings.
NOTE. If, after tenminutes fromthe unit start
up, no ice is made and the evaporating
temperature detected by the evaporator
sensor results to be higher than -1° (30°F)
the ice maker stops (compressor first and
gear motor 3' later) and the 5th WARNING
YELLOW LED blinks.
The machine will remain in OFF mode for
one hour then it will restart automatically.
In case the unit trips OFF again in alarm for
3 times in 3 hours, themachine SHUTSOFF
DEFINITIVELY.
ANMERKUNG. Zur Wiederherstellung des
Betriebs nach Behebung der rsache für die
Abschaltung müssen die oben angegebenen
Schritte, wie bei Drehung in die falsche
Richtung, durchgeführt werden.

Refrigerant metering device:
apillary tube
Gas charge (R 134a)
Air cooled Water cooled
F 80 300 gr 300 gr
F 125 400 gr 300 gr
Working pression
(with 21°C ambient temperature)
Pression
discharge 8÷9 bar 8÷5 bar
Pression
suction 0.5 bar 0.5 bar
Working pression
(with 21°C ambient temperature)
Pression
discharge 17÷18 bar 17 bar
Pression
suction 2.5 bar 2.5 bar
NOTE. Before charging the refrigerant system
always check thetypeof refrigerantandquan-
tity as specified on the individual ice machine
dataplate. The refrigerant charges indicated
are relatives to averages operating condi-
tions.
GB
19

20
GB
A Evaporator temperature sensor
The evaporator sensor probe is inserted into its
tube well, which is welded on the evaporator
outlet line, it detects the temperature of the ref-
rigerant on the way out from the evaporator and
signals it by suppling a low voltage current flow
to the P. . Board.
According to the current received, the micro-
processor let the ice maker to continue its ope-
rations or not. In case the evaporating tempera-
ture, after 10 minutes from the unit start-up,
does not go below -1° (30°F) the evaporator
sensor signals to stop immediately the unit ope-
ration, with the blinking of the 5th Warning
YELLOW LED.
B Water level sensor
This sensor consists of two small stainless steel
rods vertically fitted on the inner face of the
reservoir cover and electrically connected to
the low voltage circuit of the P. . Board.
When the cover of the reservoir is positioned in
its place the tips of both the rods dip into the
reservoir water transmitting a low power current
throu the same.
C Condenser temperature sensor
The condenser temperature sensor probe, located
within the condenser fins (air cooled version) or in
contact with the tube coil (water cooled version)
detects the condenser temperature variations and
signals them by supplying current, at low voltage,
to the P. . BOARD.
In case thecondenser temperaturesensordetects
a temperature at the condenser lower than +3°
(37°F) that means ambient temperature too low for
the correct unit operation, the sensor signals to the
P. . BOARD to do not start up the unit till the
ambient temperature rises to 10° .
In the air cooled versions, in relation to the diffe-
rent current transmitted, the micro processor of the
P. . BOARD supplies, through a TRIA , the power
at high voltage to the fan motor.
In the event the condenser temperature rises and
reaches 60° or 70° according to the setting of
DIP SWIT H number 8 the current arriving to the-
micro processor is such to cause an immediate
and total stop of the machine operation.
NOTE. In the event of shortage of water in the
reservoir or, in case the water used is too soft (de-
mineralized) to cause greater resistence to the
current flow (electrical conductivity lower than 30
μS) this sensor system causes the shutoff of the
machine, to protect it from running without water
or with an inadequate water quality. In this situa-
tion the YELLOW LED will glow to warn of the
machine shutoff and the reason why.
NOTE. Themachinewill remaininOFFmode
for one hour then it will restart automatically.
In case the unit trips OFF again in alarm for
3 times in 3 hours, themachine SH TSOFF
DEFINITIVELY.
To restart the unit after the shutoff caused by
the hi evaporating temperature, it is necessary
to switch OFF and ON the power line
main disconnect Switch.
NOTE. The machine will remain in OFF mode
for one hour then it will restart automatically.
In case the unit trips OFF again in alarm for 3
times in 3 hours, themachine SH TSOFF DEFI-
NITIVELY.
To restart the unit after the shutoff caused by
the hi condenser temperature, it is necessary to
switch OFF and ON the power line main
disconnect Switch.
COMPO E TS DESCRIPTIO