Bartscher 104409, F80, 104436, F125 Service Manual

ELECTRONIC MODULAR
FLAKERS

SERVICE MANUAL

104409 F80
104436 F125

71503

135-0-000 service Flakers GB

GB

3

TABLE OF CONTENTS

S

pecification F 80C pagina 4
Specification F 125C 5
Specification F 120 6
Specification F 200 7
Specification SF 300 8
S

pecification SF 500 9
Specification SFN 1000 10

GENERAL INFORMATION AND INSTALLATION

Introduction 11
Unpacking and Inspection - Ice maker 11
Unpacking and Inspection - Storage bin 11
Location and levelling 12
Electrical connections 13
Water supply and drain connection 13
Final ceck list 13
Installation pratice 14

OPERATING INSTRUCTIONS

Start up 15
Operations checks 17

PRINCIPLE OF OPERATION (how it works)

Water circuit 20
Refrigerant circuit 21
Mechanical system 23
Operating pressures 24
Components description 25

ADJUSTMENT, REMOVAL AND REPLACEMENT 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

MAINTENANCE AND CLEANING INSTRUCTIONS

General 38
Icemakers 38
Cleaning instructions of water system 38

GB

4

TECHNICAL SPECIFICATION

ELECTRONIC 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/Net weight/Netto Gewcht
Poids net/Peso neto

PRODUZIONE DI GHIACCIO
ICE PRODUCTION
EIS PRODUKTION
PRODUCTION DE GLACE
PRODUCICON DE HIELO

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

°C 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

°C 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

GB

5

TECHNICAL SPECIFICATION

ELECTRONIC 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/Net weight/Netto Gewcht
Poids net/Peso neto

PRODUZIONE DI GHIACCIO
ICE PRODUCTION
EIS PRODUKTION
PRODUCTION DE GLACE
PRODUCICON DE HIELO

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

°C 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

°C 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

GB

6

A INTRODUCTION

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 manufactu­red. Their ice making systems are thoroughly
tested providing the utmost in flexibility to fit the
needs of a particular user.

B. UNPACKING AND INSPECTION
Icemaker

1 Call 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) Cut and remove the plastic strip securing

the carton box to the skid.

b) Cut 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 Check that refrigerant lines do not rub again-

st or touch other lines or surfaces, and that
the fan blades move freely.

7 Check 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.

GENERAL INFORMATION AND INSTALLATION

GB

7

C. LOCATION AND LEVELLING

1 Position the storage bin in the selected per-

manent location. Criteria for selection of loca­tion include:
a) Minimum room temperature 10°C (50°F)

and maximum room temperature 40°C
(100°F).

b) Water inlet temperatures: minimum 5°C

(40°F) and maximum 35°C (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 com­partment 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 CONNECTIONS

See data plate for current requirements to deter­mine wire size to be used for electrical con­nections. 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 win­dings.

Check voltage on the line and the ice maker’s
data plate before connecting the unit.

WARNING. This Modular Flaker and
Superflaker is designed for indoor installa­tion only. Extended periods of operation at
temperature exceeding the following limita­tions will constitute misuse under the terms
of the Manufacturer’s Limited Warranty
resulting in LOSS 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 regu­lations.

GB

8

E. WATER SUPPLY AND DRAIN
CONNECTIONS

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 ingre­dient 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 advi­sable to consider the installation of an appropriate
water filter or conditioner.

WATER SUPPLY

Connect the 3/4" GAS male of the water inlet fit­ting,usingthefoodgradeflexiblehosesupplied to
thecoldwater supply linewith regularplumbing
fitting and a shut-off valve installed in an acces­sible 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.
Connect 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 DRAIN

The recommended drain tube is a plastic or fle­xible 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 DRAIN - WATER COOLED MODELS

Connect the 3/4" GAS male fitting of the con­denser 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. FINAL CHECK LIST

1 Is the unit in a room where ambient tempera-

tures are within a minimum of 10°C (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 μS 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

GB

9

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 moun­ting pads?

8 Check all refrigerant lines and conduit lines

to guard against vibrations and possible fai­lure.

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 importan­ce of periodic maintenance checks?

11 Has the Manufacturer’s registration card

been filled in properly?
Check for correct model and serial number
against the serial plate and mail the registra­tion card to the factory.

12 Has the owner been given the name and the-

phone number of the authorized Service
Agency serving him?

G. INSTALLATION 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 malfunc­tion 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

GB

10

OPERATING INSTRUCTIONS

START UP

A

fter having correctly installed the ice maker and
co mple ted the p lumb ing a nd electr ical
connections, perform t he f ollowing “Start-up” pro­cedure.

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, af ter 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 temperatu­re sensor which has i t s probe within t 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 tem­perature 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

GB

11

FIG. 3

FIG. 2

2

1

L

N

COMPRESSOR

9

10

11

12

13

3

4

5

6

7

8

C

ONTACTOR COIL

GEAR MOTOR

FAN MOTOR

ELECTRONIC
CARD

RELAYS

TRIAC

R

ESET

S E N S O R S

W

ATER

LEVEL

GEAR MOTOR ROTATION

C

ONDENSER 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

1

3

12

GB

12

NOTE. If, after ten minutes from the
compressor start-up, the evaporating tem­p

erature has not dropped down to a value

lower than -1

°

C (30°F) the evaporating tem-

perature sensor detects such an abnormal
s

ituation and stops consequently the unit
operation (first the compressor and 3' later
the gear reducer).
I

n t his c ircustanc e , t he 5th w arning YELLOW

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. Remov e 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
th e con denser 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 -

a

nd 60

°

C (140

°

F

) - for water cooled version -

the condenser temperature sensor shuts-off
t

he 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
w

ith 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
M

F 66) of the optical ice level control, by closing

t

he 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 TAND­BY 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

GB

14

NO TE. The ICE LEVE L 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
l

ight source and on the receiver.

T

o prev ent any pos sibl e ice ma ker
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
l

ight sensor elements as detailed in the
MAINTENANCE AND CLEANING PROCE­DURES.

NOTE. In the front of the PC Board is located
a

small I/R Trimmer directly connected with

t

he optical Ice level control. By means of its
screw it is possible to modify the signal
r

eceived from the Ice Level control so to

o

vercame 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
t

he 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
F

EED LINE

FREEZER

F

LOAT VALVE

ICE SPOUT

F

LOAT TANK

FREEZER

FLOAT TANK

F

LOAT VALVE

WATER INLET LINE

WATER INLET LINE

ICE SPOUT

F

REEZER
WATER
FEED LINE

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 verti­cally 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 sen­sors which operates in conjunction with the P.C.
Board. The two sensors use the water as a con­ductor 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.C. Board shutoff
the flaker operation with the simultaneous
glowing of the

YELLOW LED

signalling

“Shortage of water”.

PRINCIPLE OF OPERATION

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 (compres­sor 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.

REFRIGERANT 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 throughtheca­pillary 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) befo­rebeingsuckedinto thecompressor to be recircu­lated.
The refrigerant head pressure is kept between
two pre-set values (8÷9 bar - 110÷125 psig on
F120) by the condenser temperature sensorwhi­ch has its probe locatedwithin the condenser fins

- in air cooled versions.

This condenser temperature sensor, when sen­ses 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.C. 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.C. 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

C

APILLARY TUBE

DISCHARGE LINE

EVAPORATOR

F

AN 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 varia­tions influencing the freezer cylinder.

NOTE.

In case the condenser temperature
probe senses that the condenser temperature
has rised to 70°C on air cooled version - or
60°Conwater cooled version - for one of the fol­lowing abnormal reasons:

CLOGGED CONDENSER

(Air cooled version)

INSUFFICIENT 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 opera­ting 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 SHUTS OFF DEFI­NITIVELY.
After having eliminated the source of the exces­sive condenser temperature, to restart the ice­machine 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 preven­ting the unit from operating in Lo-ambient condi­tions 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

MECHANICAL 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 elec­tric 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°C and
5°C - 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°C (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 Ursache für die
Abschaltung müssen die oben angegebenen
Schritte, wie bei Drehung in die falsche
Richtung, durchgeführt werden.

Refrigerant metering device:

Capillary 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 refrigerantandquan­tity as specified on the individual ice machine
dataplate. The refrigerant charges indicated
are relatives to averages operating condi­tions.

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.C. Board.
According to the current received, the micro-

processor let the ice maker to continue its ope-

rations or not. In case the evaporating tempera­ture, after 10 minutes from the unit start-up,
does not go below -1°C (30°F) the evaporator
sensor signals to stop immediately the unit ope­ration, 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.C. 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.C. BOARD.
In case thecondenser temperaturesensordetects
a temperature at the condenser lower than +3°C
(37°F) that means ambient temperature too low for
the correct unit operation, the sensor signals to the
P.C. BOARD to do not start up the unit till the
ambient temperature rises to 10°C.
In the air cooled versions, in relation to the diffe­rent current transmitted, the micro processor of the
P.C. BOARD supplies, through a TRIAC, the power
at high voltage to the fan motor.
In the event the condenser temperature rises and
reaches 60°C or 70°C according to the setting of
DIP SWITCH number 8 the current arriving to the­micro 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 (de­mineralized) 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 situa­tion 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 SHUTSOFF
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 SHUTSOFF DEFI­NITIVELY.
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.

COMPONENTS DESCRIPTION

21

GB

D Electromagnetic sensor

This safety device is housed on top of the Drive
Motor and detects - based on Hall Effect princi­ple - the rotating speed and rotating direction of
the drive Motor.
Should the rotating speed drop below1300
r.p.m. the magnitude measured by this device
is such to signal to the microprocessor to stop
the unit and light-up the YELLOW LED. The
same reaction occures when the drive motor
will tend to rotate inthewrongdirection(counter­clockwise) or when it doesn't rotate at all.

E Optical ice level control

The electronic optical ice level control, located
into the ice chute has the function to stop the
operation of the ice machine when the light
beam between the light source and the receiver
gets interrupted by the flake ice which accumu­lates in the chute.
When the light beam is interrupted the Bin Full
YELLOW LED located in the front of the P.C.
BOARD blinks; in case the light beam gets inter­rupted for as longer as 6 seconds, the ice
machine stops with the glowing-up of the 2nd
YELLOWLEDto monitor thefull ice binsituation.
The 6 seconds of delay prevents that any mini­mum interruption of the light beam due to the
regular ice chuting through the ice chute may
stop the operation of the unit.
As soon as the ice is scooped out (with the
resumption of the light beam between the two
infrared sensor of ice level control - YELLOW
LED blinks fast) 6 seconds later the ice machi­ne resumes its operation with the simultaneous
extinguishing the 2nd YELLOW LED.

NOTE. The machine will remain in OFF mode
for one hour then itwill restart automatically. In
case the unit trips OFF again in alarm for 3
times in 3 hours, the machine SHUTS OFF
DEFINITIVELY. To restart the unit after the shu­toff caused by this safety device, it is neces­sary first to eliminate the cause that has gene­rated the intervention of the device and then
switch OFF and ON the power line main
disconnect switch.

Characteristics of the optical sensor
for flakes

Infra-red receiver (Photo transistor)

Maximum voltage Vce 35V
Maximum electricity Ic 50 mA
Collector electricity whereby
Ev=1000 1x, Vce=5V between 1 and 2 mA
Operation temperature -55°C ÷ +100°C

Infra-red transmitter (Photo dioxde)

Max. conversion voltage Vr 5V
Maximum electricity If 100 mA
Direct voltage Vr@100mA 25°C = 1.5V
Operation temperature -55°C ÷ +100°C

Resistive values
Evaporatore probe

KTY 10.62

T°C Rmin Rmax

-30 1223 1276

-20 1345 1394

-10 1474 1517
0 1611 1650

10 1757 1788
20 1910 1933
25 1990 2010
30 2067 2092
40 2226 2263
50 2395 2442
60 2569 2629
70 2752 2824
80 2941 3027

Resistive values
Condenser probe

KTY 11.7

T°C Rmin Rmax

-30 1236 1301

-20 1358 1422

-10 1489 1547
0 1628 1683

10 1774 1824
20 1929 1972
25 2010 2050
30 2088 2134
40 2249 2308
50 2420 2490
60 2594 2681
70 2779 2880
80 2970 3087

22

GB

YELLOW LED

U

nit shut-off due to a

t

oo lo-water level into

float tank

RED LED

O

N all the time

- Unit shut-off due to a

too hi-condensing
temperature

- Unit shut-off due to a

too lo-ambient temperature
<+1

°C

Blinking

3 minutes start up delay time

YELLOW LED

ON all the time

- Unit shut-off due to the

wrong rotation direction

of gear motor

- Unit shut-off due to the

too lo speed of gear motor

Blinking

- Unit shut-off due to a

too hi-evaporating temp.

>-1°C after 10 min of operation

YELLOW AND
RED LED

- Blinking: Evaporator sensor
out of order

- Steady: Condenser sensor
out of order

infrared sensor of ice level control - YELLOW LED
blinks fast) 6 seconds later the

ice machine resumes
its operation wit h t he simul-taneous e xtinguishing
the 2nd YELLOW LED.

F. P.C. BOARD (Data processor)

The P.C. BOARD, fitted in its plastic box located
in the front of the unit, consists of two separated
printed circuits one at high and the other at low
voltage and protected by fuses. Also it consists of
five aligned LEDS monitoring the operation of the
machine of three jumpers (TEST used only in the
factory, 60/70°C used to set up the PC Board at
proper safety cut out condensing temperature and
3' to by pass the 3 minutes Stand By) and of input
terminals for the leads of the sensor probes as
well as input and output terminals for the leads of
the ice maker electrical wires.
The P.C. BOARD is the brain of the system and
it elaborates, through its micro processor, the
signals received from the sensors in order to
control the operation of the different electrical
components of the ice maker (compressor, gear
motor, etc.).
The five LEDS, placed in a row in the front of the
P.C. BOARD, monitor the following situations:

GREEN LED

Unit under electrical
power

YELLOW LED

- Blinking: I/R beam cut

out

- Steady: unit shut-off at storage

bin full

- Blinking fast: I/R beam resumed

'06/33PJ

C°07/062PJ

TSET

1PJ

NEYS

REMROFSNART

REMROFSNART

TEKCOSROSNESROTAROPAVE

TEKCOSROSNESROTAROPAVE

TEKCOSROSNESRESNEDNOC

TEKCOSROSNESRESNEDNOC

TEKCOSROSNESROTOMEVIRD

TEKCOSROSNESROTOMEVIRD

ROSNESRETAW

TEKCOS

ROSNESRETAW

TEKCOS

LEVELECILACITPO

TEKCOSROSNESLORTNOC

LEVELECILACITPO

TEKCOSROSNESLORTNOC

LANIMRET

DRAOB

LANIMRET

DRAOB

ESUF

ESUF

CAIRT

CAIRT

ROSSERPMOC

YALER

ROSSERPMOC

YALER

ROTOMEVIRD

YALER

ROTOMEVIRD

YALER

MORPE.RPORCIM

MORPE.RPORCIM

ETOMER
TEKCOS

ETOMER
TEKCOS

TUO’06/NI’3

REPMUJYBDNATS

TUO’06/NI’3

REPMUJYBDNATS

REWOP

REWOP

LLUFNIB

LLUFNIB

RETAWON

RETAWON

.DNOCWOL/IHOT

.PMET
DNATS’3
REWOPYB

.DNOCWOL/IHOT
.PMET

DNATS’3
REWOPYB

.PMET.PAVEIHOT
WOLSROGNORW
ROTOMEVIRD
NOITATOR

.PMET.PAVEIHOT

WOLSROGNORW
ROTOMEVIRD
NOITATOR

NIC°07-TUOC°06
REPMUJ

NIC°07-TUOC°06
REPMUJ

ECNATSISER

ECNATSISER

RETSUJDAR/I

RETSUJDAR/I

F P.C. BOARD (Data processor)

The P.C. BOARD, fitted in its plastic box located
in the front of the unit, consists of two separated
printed circuits one at high and the other at low
voltage and protected by fuses. Also it consists
of five aligned LEDS monitoring the operation of
the machine of three jumpers and of input ter­minals for the leads of the sensor probes as well
as input and output terminals for the leads of
the ice maker electrical wires. The P.C. BOARD
is the brain of the system and it elaborates,
through its micro processor, the signals recei­ved from the sensors in order to control the ope­ration of the different electrical components of
the ice maker (compressor, gear motor, etc.).
The five LEDS, placed in a row in the front of the
P.C. BOARD, monitor the following situations:

GREEN LED

Unit under electrical power

YELLOW LED

Blinking: I/R beam cut out
Steady: storage bin full

YELLOW LED

Unit shut-off due to a too lo-water level
into float tank

RED LED

ON all the time

- Unit shut-off due to a too
hi-condensing temperature

- Unit shut-off due to a too
lo-ambient temperature <+1°C

Blinking
3 minutes start up delay time

YELLOW LED

ON all the time

- Unit shut-off due to the wrong
rotation direction of gear motor

- Unit shut-off due to the too lo speed
of gear motor

Blinking

- Unit shut-off due to a too hi-evaporating
temp.
>-1°C after 10 min of operation

YELLOW AND RED LED

– Blinking: Evaporator sensor

out of order

– Steady: Condenser sensor

out of order

23

GB

G Jumpers

TheFlakerPCBoardisequipped by threejumpers:

J1 · TEST:

Used in the factory to energise all

theelectrical components duringthe Testing

Mode. Used to by-pass the 3' stand by time
(just jumpthecontactswith PCBoard under

power).

J2 - SYEN / J3 - Pro. El. Ind. - 60/70°C:

Used to set up the CutOut temperature
of the condenser sensor:

• Jump OUT = 60°C

• Jump IN = 70°C

J3 - SYEN / J2 - Pro. El. Ind. - · 3'/60':

Used to set up the start up delai time:

• Jump IN = 3'

• Jump OUT = 60'

H Float reservoir

The float reservoir consist of a plastic water pan
on which is fitted a float valve with its setting
screw. The float valve modulate the incoming
water flow to maintain a constant water level in
the reservoir, level that corresponds to the one
in the freezing cylinder to ensure proper ice for­mation and fluidity.
On the inner side of the reservoir cover are fit­ted the twowater level sensor pinswhich detec­ts the presenceor theshortageof water inthe­reservoir.

I Freezing cylinder or evaporator

The freezing cylinder ismade of a stainless steel
vertical tube onwhich exterior iswrapped aro­und the cooling coil with the evaporating cham­ber and in its interior is located the auger which
rotates on its vertical axis and it is maintained
aligned by the top and bottom bearings. A
water seal system is located in the bottom part
of the freezer while at the top end is fitted the ice
breaker.
The water constantly flowing into the cylinder
bottompart, freezes into ice when in contact
with the cylinder inner walls. The ice is then lif­ted up by the rotating auger and compacted
and forced out by the ice breaker.

J Eisbrecher

Der Eisbrecher befindet sich im oberen Teil des
Freezers und wirkt dem an den Zylinderwänden
aufsteigendem Eis entgegen, das auf diese
Weise komprimiert wird, so dass ein Teil des
darin enthaltenen Wassers beseitigt und das
Eis in viele Körnchen gebrochen wird, die in
den Behälter befördert werden.
Im Eisbrecher befindet sich das obere Lager,
das aus zwei Reihen Rollen aus rostfreiem Stahl
besteht, die den von der Schnecke ausgeübten
radialen und axialen Belastungen standhalten
können.
Dieses Lager ist mit einem speziellen, wasser­abstoßenden Lebensmittelschmierfett
geschmiert.

NOTE. It is very important tomake sure of the
correct fitting of the cover on the reservoir in
order to enablethesensor to efficiently control
the water situation avoiding undue shutoff inter­ventions.

ANMERKUNG. Es wird empfohlen, alle sechs
Monate den Zustand des Schmiermittels und
des oberen Lagers zu überprüfen.

GB

24

K Gear motor

The gearmotor ismade of a single phase elec-

tric motor with permanent capacitor directly fit­ted on a gear box.
The drive motor rotor is kept aligned on its ver­tical axis by two ball bearings permanently
lubricated. The gear case contains a train of
three spur gears with the first one in fiber to limit
the noise level. All the three gears are encased
in case roller bearings and are covered by lubri­cant grease (MOBILPLEX IP 44).
Two seal rings, one fitted on the rotor shaft and
the other on the output shaft keep the gear case
sealed.
The interior can be inspected and serviced by
unbolting the two halves of the aluminium gear
case housing.

L Fan motor (Air cooled version)

The fanmotor is controlled through the TRIAC of
the P.C. BOARD by the condenser temperature
sensor. Normally it operates to draw cooling air
through the condenser fins.
In cold ambient situation, the fan motor can run
at intermittance as the condenser pressuremust
be kept between two corresponding head pres­sure values.

M Water regulating valve

This valve controls the head pressure in the
refrigerant systemby regulating the flowofwater
going to the condenser.
As pressure increases, the water regulating
valve opens to increase the flow of cooling
water.

N Compressor

The hermetic compressor is the heart of the ref­rigerant system and it is used to circulate and
retrieve the refrigerant throughout the entire
system.
It compresses the lowpressure refrigerant vapor
causing its temperature to rise and become
high pressurehotvaporwhich isthenreleased­through the discharge valve.

GB

25

A Adjustementof the evaporator water level

The correct water level in the freezing cylinder is

about 25 mm. below the ice discharge opening.
Low water level causes excessive strain inside
the freezer assembly due to a faster freezing
rate.

When the water level is above or below the cor­rect one, adjustment can be performed by rai­sing or lowering at the measure required, the
water reservoir and its mounting bracket.

1 To Raise or Lower the water level:

a Loosen and remove the screw securing

the mounting bracket of the water reser­voir to the unit cabinet and raise the water
reservoir to the correct level.

b Thread the mounting screw in the corre-

sponding hole and tighten it.

2 For the reduction the water level as given

above, and lower the bath, as soon as it is
released from the casing.

B. Replacement of the gearmotor magnetic

sensor

1 On F80, F120 remove the front/top and

side/rear panels top and left side panels.

2. Unloose the three screws securing the pla­stic cover to the top of the gear motor and
remove it.

3. Unloose the two screws securing the magne­tic sensor to the plastic housing and with­draw it from its seat.

4. Trace the gear motor magnetic sensor termi­nal plug on the rear side of the control box
(red with four terminal pins) and draw it out
from its socket by carefully slackening the
fastening tie.

5. To install the replacement gear motor magne­tic sensor follow the above steps in reverse.

WARNING. Be sure the electrical power
supply circuit breaker and the inlet water
supply are OFF, before starting any of the
following Removal and Replacement pro­cedures as a precaution to prevent possi­ble personal injury or damage to the
equipments.

NOTE. Read the instructions throughly befo-

re performing any of the following adjustment
or removal and replacement procedure.

ADJUSTMENT, REMOVAL

AND REPLACEMENT PROCEDURES

GB26GB

C Replacement of the auger, water seal, bea-

rings and coupling

1 Remove the panels.
2 Follow the steps at item H to remove the ice

spout.

3 On model F120 unloose and remove two

screws and washers holding tight the spout
bracket to the freezing cylinder.

4 On model F120 grasp the wire cap hook at

the top of the freezer and pull out the auger,
attached cap and icebreaker from the top of
the freezer.

D Replacement of the gear motor assy

1 Remove the front/top and side/rear panels.
2 Remove the three/four bolts and washers

securingthegear reducerbase to theunit­chassis, then remove bolts and lockwasher­swhich attach the bottom of the aluminium
adaptor to the gear reducer case cover.

3 Follow the steps of item E to remove the gear

motor magnetic sensor.

4 Trace and disconnect the electric wires leads

of the drive motor. Lift and remove the entire
gear motor assembly.

E Change of the water level sensors in the

bath

1 Remove the upper plate
2 Loosen the fastening nuts of the ring cable

lugs of both the rod made of stainless steel –
water sensors -, which are found on the cover
of the swimming pool

3 Search for the terminal of the lowest water

sensor with two red mandrels in the back part
of the switch box and pull them out of their
position by pressing on the fastening strap.

4 Proceed with the installation of the new lowe-

st sensor in the reverse order.

F Change of the control card

1 Remove the front upper plate
2 Search for the terminal of the single sensor

with two red mandrels in the back part of the
switch box and pull them out of their position
through pressing on the fastening strap.

3 Pull off the terminals for the electrical con-

nections of the back part of the control card
and then remove the whole control card by
loosening the four screws, with which it is
fastened in the electrical switch box made of
plastic

4 Proceed with the installation of the new lowe-

st sensor in the reverse order

G Change of the ice discharge opening

1 Loosen the screws and remove the upper

plate.

2 Remove the wing nuts and the take the ope-

ning from the ice removal canal. Work on the
optical reading device, so that these are not
damaged.

3 The two shells, with which the polystyrene

bowls in the upper part of the evaporators
are fastened, and remove both the insulating
bowls.

4 Pull out the opening made of stainless steel

from its upper bronze part with the F 125
models, for the other models loosen both
bolts, with which they are fastened in the ice­breaker.

5 For Model F125 loosen both bolts, with which

the bronze opening is fastened to the evapo­rator and free it.

6 Proceed with the installation of the new ope-

ning in the reverse order.

NOTE. If the auger cannot be pulled out, pro­ceed to steps 10 and 11 of this paragraph, to
gain access to the auger bottom. Then, with a
rowhide mallet or placing a piece of wood on
the bottomend of the auger, tap this bottom to
break loose the auger and be able then to pull
it out as per step 4 above.

NOTE. In F 125 and F 80 models inspect the
rectangular rubber seal of the nozzle and, if
damaged, replace it.

GB27GB

H Replacement of the screw, seal ring, bea-

rings and coupling

1 Loosen the screws and remove the front

upper plate.

2 Change the procedure described in Point H

for the removal of the ice discharge opening

3 Loosen and remove both screws, which are

used to fasten the clip of the opening on the
evaporator.

4 Grasp the ring in the upper part of the ice-

breakers of the evaporators and pull
upwards hard to remove the unit icebreaker

5 For the F125 Model, remove the ring which is

used to fasten the cover on the icebreaker, with
the Seeger tongs. For the other models, a
screw driver is used for removing the cover.

6 Loosen and remove the head bolt used to

fasten the unit icebreaker storage on the screw
(augur) and pull out the icebreaker unit from the
screw.

7 Remove the remaining grease from the ice-

breaker unit and examine and change the O R
seal, in case it is not alright.

8 Test the storage in the icebreaker carefully.

Immediately change if there are signs of the
start of wear and tear or lacking grease.

9 Pull the brass rotating ring of the seal system

from the lower part of the screw.
For the F125 Model , pull the brass rotating ring
of the seal system from the lower part of the
screw, the remaining models of the steel ring
must be pulled out with a spring.

10 Loosen and remove the three/four bolts, which

are used to fasten the aluminum container
underneath the evaporator.

11 Lift the evaporator and raise it from its contai-

ner. After that push a wooden or plastic tool
with a suitable knife and length in the upper
part of the evaporator, so that it can be pressed
out from the lower end. It is necessary in case
a wooden hammer is used.

NOTE. Whenever you disassemble the auger
to make a few checks or replacement, take
care not to let dirt inside the evaporator and
especially that these should not be deposited
on the surface in graphite seal ring.
If there were any doubts, proceed without delay
to the complete replacement of the seal ring.

WARNING. The upper bearing works in criti­cal conditions as regards its lubrication
because it will insert within the icebreaker
where you normally form a considerable
condensation. E 'exhaustive use of dietary
fat and water-repellent in order to provide
adequate lubrication to the upper bearing.

NOTE. If you are unable to remove the auger

assembly / icebreaker from above, switch to
perform as described in paragraphs 10 and 11
of this paragraph in order to act on the bottom
of the cochlea. Using a mallet of wood or pla­stic, beat on the lower end of the auger in order
to loosen and eject it from the top of the eva­porator.

GB

28

12 Press and remove the Super Flakes Ice Model

with the sheets, from two screws pulled from the
lower edge of the brass rings of the lower sto­rage casing.

13 Pull the components of the drive coupling from

aluminum container out.

14 Control the state of both half couplings.

Immediately exchange if there is wear and tear.

15 Install the lower storage in its bronze casing

and put it in such a way that the white plastic
ring shows on the top.

16 Install the upper storage of the icebreakers.

The flat part starts with the radial part.
The surfaces must be mounted upward.

17 Lubricant (grease) on the upper part.

Then mount the roll cage with the smaller ope­nings at the top, to allow a little movement
between the plastic cage and the flat surfaces
of the lower storage part (see diagram).

18 Grease and then mount the equalizing disc

made of steel

19 After changing the O-Ring seal in the ice-

breaker, install the icebreaker on top of the
screw and fasten it with the upper bolt.

20 Install the screw icebreaker unit in the evapora-

tor. Use the previous points in a reverse order.

I Change of the gear motor

1 For the F125 Model the front/upper and the

side/back plate

2 Loosen the three-four screws, which are

used to fasten the evaporator on the upper
casing.

3 Remove the sensors for the engine rotating

direction according to the instructions in
Point B.
Loosen the screws which are used to fasten
the gear motor on the framework.

4 Interruption of the supply of power of the

motor through the electrical equipment. The
gear motor is now released and can be exre­verse

5 To install the new gear motor, use the process

in the reverse order.

J Change of the ventilator

1 For the F125 Model the front/upper and the

side/back plate

2 Loosen the nuts and search and pull out the

yellow/green grounding cable. The mandrel
for the connection of the electrical cable of
the ventilator.

3 For the F 125 Model, loosen the bolts which

are used to fasten and take out the ventilator
unit on the base of the device.

NOTE. Is a good practice to replace both the
ring of the mechanical seal that the bearings,
upper and lower, as well as O-rings each time
it is disassembled the evaporator assembly.
For this purpose there is a kit of these parties
also accompanied by a tube of grease food
and water repellent.

NOTE. When installing a new fan motor check
that the blades do not touch anything and turn
freely.

GB

29

K Change of the driers

1 For the F 125 Model front/upper and the

side/back plate

2 Remove the cooling agent from the system

and let it flow into a particular container,
which can be later recycled after a corre­sponding cleaning.

3 The cooling agents guides from both ends

(for the F 125 Model, weld the capillary tube
on a side of the drier).

4 Remove the seals to both ends for the moun-

ting of the new driers and wearing the pipes
of the cooling agent.

5 Carefully rinse the cooling agent circulation

for humidity and remove the non-condensa­ble gases after installing the new driers.

6 Fill the cooling agent circulation with the right

amount of cooling agent (see type) and exa­mine, whether appearances* with the level
smelted* places are available.

7 Mount the previously removed plate again.

L Change of the evaporator

1 Follow the instructions of Point H for the

removal of the ice discharge opening.

2 Remove the *shell of the connection of the

water entry* in the evaporator and draw out
the *pipe. Empty the water found in a con­tainer.

3 Pull out the sensor pipe of the evaporator as

in Point B.

4 Remove the cooling agent from the system

and let it run into a particular container, so
that it can be recycled later after a corre­sponding cleaning.

5 Welding and separate the capillary tube and

the collection/sucking unit from the outflow
pipe of the evaporator.

6 Loosen the three-four bolts, which are used

to fasten the evaporator on the upper casing
of the gear motor.

7 Remove the evaporator of the gear motor

and if necessary, remove the aluminum con­tainer* by loosening the three-four bolts of
the evaporator.

8 For the installation of the new evaporator the

process used in a reverse order.

M Change of the air-cooled condenser

5 For the F 125 Model the front/upper and the

side/back plate

2 Remove the sensor pipe from the cooling

bulb of the condensers.

3 Loosen the bolts, which are used to fasten it

on the base/frame.

4 Remove the cooling agent from the system

and let it flow into a particular container, to be
able to recycle it later after the corresponding
cleaning.

5 Weld the cooling agent pipes from both

ends.

6 For the installation of the new condensers,

use the process in a reverse order

NOTE. Replace the dryer filter whenever the
refrigerant circuit is opened. Do not apply the
new filter dehumidifier until all repairs or repla­cements have been made.

NOTE. Carefully purged the refrigerant circuit
to remove moisture and non-condensable
gases after the replacement of the evaporator.

NOTE. Replace the dryer filter whenever the
refrigerant circuit is opened. Do not apply the
new filter dehumidifier until all repairs or repla­cements have been made.

NOTE. Carefully purged the refrigerant circuit
to remove moisture and non-condensable
gases after the replacement of the condenser.

GB

30

N Change of the water-cooled condensers

1 For the F 125 Model the front/upper and the

side/back plate

2 Remove the sensing probe from the conden-

ser.

3 Loosen and remove the bolts with which it is

fastened on the base.

4 Unscrew the pipe terminal and pull the pla-

stic pipe of the two ends of the condensers.

5 Remove the cooling agent from the system

and let it flow into a particular container, to be
able to recycle it later after the corresponding
cleaning.

6 Welding the cooling agent pipes from the two

ends of the condenser.

7 For the installation of the new condensers

use the process in reverse order.

O Exchange of the regulating valve

(water-cooled equipment)

1 For the F 125 Model the front/upper and the

side/back plate

2 Close the water stop valve and the supply

pipes for the regulating valve from the back
part of the device.

3 Loosen the pipe terminal and remove the pla-

stic pipe from the pipe holder at the exit of
the regulating valve.

4 Loosen the nuts, which are used for fastening

the regulating valve in the frame of the equip­ment.

5 Remove the cooling agent from the system

and let it flow in a particular container, to be
able to recycle it later after the corresponding
cleaning

6 Try the capillary tube of the regulating valve

and weld it onto the cold circulation. Then
remove it from the device.

7 For the installation of the new condensers

use the process in reverse order.

P Change of the compressor

1 For the F 125 Model the front/upper and the

side/back plate

2 Remove the cover and pull out the electrical

cable from the terminals of the compressor.

3 Remove the cooling agent from the system

and let it flow into a particular container, to be
able to recycle it later after the corresponding
cleaning

4 Weld the conveyor pipe as well as the suc-

tion pipe of the compressor.

5 Loosen the screws, which is used to fasten it

to the base, and remove the compressor
from the socket of the equipment.

6 For the F125 Model, weld the working/filling

pipe, to be able to weld it on the new com­pressor.

NOTE. Replace the dryer filter whenever the
refrigerant circuit is opened. Do not apply the
new filter dehumidifier until all repairs or repla­cements have been made.

NOTE. Carefully purged the refrigerant circuit
to remove moisture and non-condensable
gases after the replacement of the condenser.

NOTE. Replace the dryer filter whenever the
refrigerant circuit is opened. Do not apply the
new filter dehumidifier until all repairs or repla­cements have been made.

NOTE. Carefully purged the refrigerant circuit
to remove moisture and non-condensable
gases after the replacement of the condenser.

NOTE. The water flow passing through the
pressure valve must be adjusted using the
screw in the upper part of its stem until you
have a condensing pressure of 14 bar.

GB

31

7 For the installation of the new compressors,

use the process in a reverse order

NOTE. Carefully purged the refrigerant circuit
to remove moisture and non-condensable
gases after the replacement of the condenser.

NOTE. Replace the dryer filter whenever the
refrigerant circuit is opened. Do not apply the
new filter dehumidifier until all repairs or repla­cements have been made.

GB32GB

TECHNISCHE DATEN DES EISFLOCKENBEREITERS

MODELLO

MODEL

MODELL

VOLTS

COMPRESSORE

COMPRESSOR

KOMPRESSOR

REFRIGERANTE

REFRIGERANT

KÄLTEMITTEL

CARICA

REFRIGERANTE

REFR. CHARGE

BEFÜLLUNG MIT

KÄLTEMITTEL

CAPILLARE

CAPILLAR

KAPILLARROHR

POTENZA

ASSORBITA

POWER

AUFGENOMME-

NE LEISTUNG

ASS.

MARCIA

AMPS

AMP.

BETRIEB

ASS.

AVVIAMENTO

START

AMPS

AMP. START

CONSUMO

ELETTRICO

POWER

CONS.

STROMVERBRAUCH

ASSORBIMENTO

MOTORIDUTTORE

AMPS MOTOREDUCT.

AUFNAHME GETRIE-

BEMOTOR

3000mm.

F80 A/W 230/50/1 ELECTROLUX R134a 300/300 gr. D int. 0.90 400W 2.6A 11A 0.200A 9.6 KWH/24 HR

GL90TB R134A D: 2.2mm

2500mm.

F125 A/W 230/50/1 UNITE HERMETIQUE R134A 400/300gr D int. 1.00 480W 3.2A 18A 0.200A 11.5 KWH/24 HR

GP14 TB R134A D: 2.2mm

GB33GB

WIRING DIAGRAM F80

AIR AND WATER COOLED

220-240/50/1

KABEL FARBEN

v = gru n

r = rosa

m = braun

bc = blau

gv = gelbe/gru n

CABLES COLORS

v = green

r = pink

m = brown

bc = light blue

gv = yellow/green

PONTE

JUMPER

STANDARD

SET

AN

ON

AUS

O FF

J1 off Test

Normal Betrieb

Normal operation

J2 on/off

Allarme 70°C

70°C alarm (air cooled)

Allarme 60°C

60°C alarm (water cooled)

J3 off

Anlaufverzögerung 3’ Aus

3’ delay off

Anlaufverzögerung 3’ Aktiv

3’ delay on

MVMRMCSCSLLASHSSSTSOCACTF

CS

LEGENDE

Ventilatoren

Schrittmotor

Verdichter

Platine

Led Schalter

Wasserniveau

Rotationfuhler

Kondensator Fuhler

Verdampfer Fuhler

Optischer Sensor

Anschlusskabel

Steckverbinder

Verriegelung

STart Kondensator

LEGEND

Fan

Gearmotor

Compressor

Electronic card

Led card

Water level

Rotation probe

Condenser probe

Evaporator probe

Fotoswitch system

Power cable

Terminal for cables

Lock-Cable

Start Condenser

LEDS INDICATIONS

Power on

Bin full

No water

Too high cond. temp

3’ stand by

Wrong rotation

too high evap. temp

LED AUGABEN

Ausschaltung

Behälter voll

Fehlendes Wasser

Hochtemperatur

Kondensator

Schnecke sitzt fest

L1L2L3

L4

L5

GB

34

WIRING DIAGRAM F80

AIR AND WATER COOLED

220-240/50/1

KABEL FARBEN

v = gru n

r = rosa

m = braun

bc = blau

gv = gelbe/gru n

CABLES COLORS

v = green

r = pink

m = brown

bc = light blue

gv = yellow/green

PONTE

JUMPER

STANDARD

SET

AN

ON

AUS

O FF

J1 off Test

Normal Betrieb

Normal operation

J2 on/off

Allarme 70°C

70°C alarm (air cooled)

Allarme 60°C

60°C alarm (water cooled)

J3 off

Verspätung 3’ Aus

3’ delay off

Verspätung 3’ Aktiv

3’ delay on

VAPSMRMCSCSLLA

SHSSSTSOCACTF

CS

LEGENDE

Wasser Ventil

Pressostat

Schrittmotor

Verdichter

Platine

Led Schalter

Wasserniveau

Rotationfuühler

Kondensator Fuühler

Verdampfer Fuühler

Optischer Sensor

Anschlusskabel

Steckverbinder

Verriegelung

Start Kondensator

LEGEND

Water solenoid valve

Pressure control

Gearmotor

Compressor

Electronic card

Led card

Water level

Rotation probe

Condenser probe

Evaporator probe

Fotoswitch system

Power cable

Terminal for cables

Lock-Cable

Start Condenser

LEDS INDICATIONS

Power on

Bin full

No water

Too high cond. temp

3’ stand by

Wrong rotation

too high evap. temp

LED AUGABEN

Ausschaltung

Behälter voll

Fehlendes Wasser

Hochtemperatur

Kondensator

Schnecke sitzt fest

L1L2L3

L4

L5

GB35GB

WIRING DIAGRAM F125

AIR AND WATER COOLED

220-240/50/1

KABEL FARBEN

v = gru n

r = rosa

m = braun

bc = blau

gv = gelbe/gru n

CABLES COLORS

v = green

r = pink

m = brown

bc = light blue

gv = yellow/green

PONTE

JUMPER

STANDARD

SET

AN

ON

AUS

O FF

J1 off Test

Normal Betrieb

Normal operation

J2 on/off

Allarme 70°C

70°C alarm (air cooled)

Allarme 60°C

60°C alarm (water cooled)

J3 off

Verspätung 3’ Aus

3’ delay off

Verspätung 3’ Aktiv

3’ delay on

MVMRMCSCSLLASHSSSTSOCACTF

CS

LEGENDE

Ventilatoren

Schrittmotor

Verdichter

Platine

Led Schalter

Wasserniveau

Rotationfuhler

Kondensator Fuhler

Verdampfer Fuhler

Optischer Sensor

Anschlusskabel

Steckverbinder

Verriegelung

STart Kondensator

LEGEND

Fan

Gearmotor

Compressor

Electronic card

Led card

Water level

Rotation probe

Condenser probe

Evaporator probe

Fotoswitch system

Power cable

Terminal for cables

Lock-Cable

Start Condenser

LEDS INDICATIONS

Power on

Bin full

No water

Too high cond. temp

3’ stand by

Wrong rotation

too high evap. temp

LED AUGABEN

Ausschaltung

Behälter voll

Fehlendes Wasser

Hochtemperatur

Kondensator

Schnecke sitzt fest

L1L2L3

L4

L5

GB

36

WIRING DIAGRAM F125

AIR AND WATER COOLED

220-240/50/1

KABEL FARBEN

v = gru n

r = rosa

m = braun

bc = blau

gv = gelbe/gru n

CABLES COLORS

v = green

r = pink

m = brown

bc = light blue

gv = yellow/green

PONTE

JUMPER

STANDARD

SET

AN

ON

AUS

O FF

J1 off Test

Normal Betrieb

Normal operation

J2 on/off

Allarme 70°C

70°C alarm (air cooled)

Allarme 60°C

60°C alarm (water cooled)

J3 off

Verspätung 3’ Aus

3’ delay off

Verspätung 3’ Aktiv

3’ delay on

LEGENDE

Wasser Ventil

Pressostat

Schrittmotor

Verdichter

Platine

Led Schalter

Wasserniveau

Rotationfuühler

Kondensator Fuühler

Verdampfer Fuühler

Optischer Sensor

Anschlusskabel

Steckverbinder

Verriegelung

Start Kondensator

LEGEND

Water solenoid valve

Pressure control

Gearmotor

Compressor

Electronic card

Led card

Water level

Rotation probe

Condenser probe

Evaporator probe

Fotoswitch system

Power cable

Terminal for cables

Lock-Cable

Start Condenser

GB

37

SYMPTON POSSIBLE CAUSE SUGGESTED CORRECTION

U

nit will not run

No LED lighted-on

Bin full yellow LED glows
with no ice in the bin
No water yellow LED
glows
Red-alarm LED glows

Red-alarm LED blinks
Reverse rotation yellow
LED blinks

Reverse rotation yellow
LED glows

Water yellow LED and
red LED ON (steady)
together
Water yellow LED and
red LED blink together

B

lown fuse in P.C.Board

Master switch in OFF position
Inoperative P.C.Board
Loose electrical connections
Inoperative or dirty ice level control

Shortage of water
Water too soft
High head pressure

Ambient temperature too low
3' stand by
Too hi evap. temperature
Shortage or lack of refrigerant
Inoperative evaporator sensor
Gear motor turns on reverse
Too low gear motor rotating speed

Drive motor doesn't turn
Magnetic cylinder loose its magnetic
charge

Inoperative Condenser Sensor

Inoperative Evaporator Sensor

R

eplace fuse & check for cause of
blown fuse
Turn switch to ON position
Replace P.C.Board
Check wiring
Replace or clean ice level control

See remedies for shortage of water.
Install a mineral salt metering device
Dirty condenser. Clean
INOPERATIVE fan motor. Replace
Move unit in warmer location
None - Wait the elapsed of 3'
Check and charge refrigerant
system
Replace
Check stator winding and capacitor
Check rotor bearings, freezer bearings
and interior of freezer for scores.
Replace whatever worn or damaged.
Check for power, open circuit, etc.
Replace magnetic cylinder.

Replace it.

Replace it.

Compressor cycles inter­mittently

Low voltage

Non-condensable gas in system
Compressor starting device with
loose wires

Check circuit for overloading
Check voltage at the supply to the
building. If low, contact the power
company
Purge the system
Check for loose wires in starting
device

Low ice production Capillary tube partially restricted

Moisture in the system
Low water level in the freezer

Shortage of refrigerant
Pitted or stained auger surface

Blow charge, add new gas & drier,
after evacuating system with
vacuum pump
Same as above
Adjust to approx 20 mm below ice
spout
Check for leaks & recharge
Clean or replace auger

ANALYSE DER FEHLER UND FUNKTIONSSTÖRUNGEN

GB38GB

S

YMPTOM

POSSIBLE CAUSE SUGGESTED CORRECTION

Wet ice Ambient temperature too high

Under or overcharge of refrigerant
High water level in the freezer
Faulty compressor
Worn out of the auger

Move unit to cooler location
Recharge with correct quantity
Lower to approx. 20 mm below ice spout
Replace
Replace

Machine runs but makes
no ice

Water not entering in the freezer

Drive motor or gear stripped
Moisture in the system

Air look in feed line to freezer. Vent it
Clogged feed line to freezer. Clean it
Check repair or replace
Purge, replace drier and re-charge

Water leaks Water seal leaking

Water feed line to freezer leaking
Float valve not closing

Spout leaking

Replace water seal
Check and fasten hose clamp
Check and adjust float valve setting
screw
Tighten screws holding the spout

Excessive noise or chatte­ring

Mineral or scale deposit on auger
and inner freezer walls

Low suction pressure
Water feed line to freezer clogged
Low water level into freezer
Worn freezer bearings

Remove and manually polish auger
and inner walls of freezer barrel using
emery paper
Add refrigerant to rise suction pressure
Vent and clean it
Adjust to approx. 20 mm below ice spout
Check and replace

Gear motor noise Worn rotor bearings

Shortage or poor lubricant in gear
case

Gear case bearings and racers
worn out

Check and replace
Check for proper lubr. opening gear
case. Top of gears must be covered
with lubr.
Check and replace worn parts

Shortage of water Strainer at water inlet fitting

clogged

Float reservoir water nozzle
clogged-up

Remove strainer and clean

Remove float valve and clean nozzle

GB39GB

A GENERAL

The periods and the procedures for maintenan­ce and cleaning are given as guides and are
not to be construed as absolute or invariable.
Cleaning, especially, will vary depending upon
local water and ambient conditions and the ice
volume produced; and, each icemaker must be
maintened individually, in accordance with its
particular location requirements.

B

ICEMAKER

The followingmaintenance should be scheduled
at least two times per year on these icemakers.
1 Check and clean the water line strainer.
2 Remove the cover from the float reservoir -

care to do not damage the two water sensors

- and depress the float to make sure that a full
stream of water enters into the reservoir. If not
gently remove the float valve from its reser­voir bracket than clean the hole of the nozz­le.

3 Check that the icemaker is levelled in side to

side and in front to rear directions.

4 Check that the water level in the water reser-

voir is below the overflow but high enough
that it does not run out of the spout opening.

5 Clean the water system, water reservoir and

the interior of freezing cylinder using a solu­tion of cleaner.
Refer to procedure C cleaning instructions
and after cleaning will indicate frequency
and procedure to be followed in local areas.

6 If required, polish the two sensor rods secu-

red to the float reservoir cover, heavy scale
sediment on them can be removed with the
help of a bit of cleaner.

7 With the ice machine and fan motor OFF on

air cooled models, clean condenser using
vacuum cleaner, whisk broom or non metallic
brush taking care to do not damage the con­denser/ambient temperature sensor.

8 Check for water leaks and tighten drain line

connections.Pourwater down bin drain line to
be sure that drain line is open and clear.

9 Check the ice level control sensor to test

shut-off. Close the bottom of the ice chute
and wait till it is completely full of ice so to cut
off the light beam for at least 6 seconds.
This should cause the immediate blinking of
the Bin Full YELLOW LED located in the front
of P.C. Board and, 6 seconds later, the total
stopping of the ice maker with the simulta­neous light up of the same LED (steady).
Within few seconds from the removal of the
ice between the sensor lights the ice maker
resume its operation.

10Check for refrigerant leaks and for proper

frost line, which should frost as far as approx.
20 cm (8") from the compressor.

11When doubtful about refrigerant charge,

install refrigerant gauges on corresponding
service valvesandcheckforcorrect refrige­rantpressures.

12Check that fan blades move freely and are

not touching any surfaces.

NOTE. Cleaning requirements vary accor­ding to the local water conditions and indivi­dual user operation.

NOTE: The ice level control uses devices
that sense light, therefore they must be kept
clean enough so they can “see”.
Everythreemonthsremovetheopticalsystem
then clean/wipe the sensing “eyes” with a
clean soft cloth.

MAINTENANCE AND CLEANING INSTRUCTIONS

GB40GB

13Remove the retaining ring and the hook and

cap from the top of the freezer assembly then
inspect the top bearing, wipe clean of all
grease and apply a coating of food grade
water proof grease.

14Check the quality of ice.

Ice flakes should be wet when formed, but will
cure rapidily to normal hardness in the bin.

C. CLEANING INSTRUCTIONS OF WATER

SYSTEM

1 Switch OFF the Master disconnect switch on

the power line.

2 Remove all ice stored in the bin to prevent it

from getting contaminated with the cleaning
solution.

3. Shut close the water shutoff valve on water
line.

4 Remove the top panels to gain access to the

water reservoir.

5. Remove the float reservoir cover andwith a
piece of copper wire short the two metal pins
of the water level sensor.

6 Place a water pan under the freezer water

inlet port, disconnect the water hose from this
port and allow the water from the freezer to
flow into the pan. Then refit the water hose to
the freezer water inlet port.

7 Prepare the cleaning solution in a plastic

container.r

8 Pour the cleaning solution into the water

reservoir.

9 Wait till the machine starts to discharge ice,

then continue to slowly pour the cleaning
solution into the water reservoir taking care to
maintain the level just below the overflow.

NOTE. It is recommended to use only food
grade and waterproof grease to lubricate the
freezer top bearing.

NOTE. It is not abnormal for some water to
emerge fromthe ice spout with the flaker ice.

NOTE. Put one or both of the water sensor on
the casing of the equipment, because in this
way through the condenser sensor voltage
will be transferred and the equipment will be
switched off through that due to high tempe­rature.

GB41GB

10When all the cleaning solution has been used

up, open the water shutoff valve to allow new
fresh water to flow into the reservoir. Let the
unit to continue to run until the ice resumes
the normal colour and hardness.

11Stop the icemaker and pour warmwater on

the ice deposited into the storage bin tomelt
it up.

12Left the unit running for approx 10 minutes

then remove the copper wire used to jump
the two sensors for the water level and place
back correctly the cover on the float reser­voir.

ATTENTION use ice produced with the
cleaner solution. Be sure none remains
in the bin.

NOTE. The ice produced with the decalcifi-

cation solution is yellowish and smooth. In
this phase, there are loud noises from the
freezer due to the rubbing between the rising
ice and the evaporator walls. In this case, it is
recommended that the equipment should be
switched off for some minutes, so that the
decalcification solution in the freezer can be
released.

71503135-0-000 service Flakers GB