Bartscher 104409, 104436 Operating instructions

Bartscher 104409, 104436 Operating instructions
ELECTRONIC MODULAR
FLAKERS
104409
104436
F80
F125
SERVICE MANUAL
71503135-0-000 service Flakers GB
GB
TABLE OF CONTENTS
Specification
Specification
Specification
Specification
Specification
Specification
Specification
F 80C
F 125C
F 120
F 200
SF 300
SF 500
SFN 1000
pagina
4
5
6
7
8
9
10
GENERAL INFORMATION AND INSTALLATION
Introduction
Unpacking and Inspection - Ice maker
Unpacking and Inspection - Storage bin
Location and levelling
Electrical connections
Water supply and drain connection
Final ceck list
Installation pratice
11
11
11
12
13
13
13
14
OPERATING INSTRUCTIONS
Start up
Operations checks
15
17
PRINCIPLE OF OPERATION (how it works)
Water circuit
Refrigerant circuit
Mechanical system
Operating pressures
Components description
20
21
23
24
25
ADJUSTMENT, REMOVAL AND REPLACEMENT PROCEDURES
Adjustment of the evaporator water level
Replace of the gear motor magnetic sensor
Replace of auger, water seal, bearing and coupling
Replacement of the gear motor assy
Replacement of freezing cylinder
Wiring diagram
Service diagnosis
29
29
29
30
31
32
36
MAINTENANCE AND CLEANING INSTRUCTIONS
General
Icemakers
Cleaning instructions of water system
38
38
38
3
GB
TECHNICAL SPECIFICATION
kg. 90
Potenza assorbita/Absorbed power/Leistungsaufnahme
Puissance absorbée/Potencia Absorbida
Refrigerante/Refrigerant/Kältemittel
Réfrigérant/Refrigerant
Alimentazione monofase/Single phase input/
Einphasige Spannung/Alimentation monophase
Alimentación monofásica
Alimentazione voltaggi speciali:
Extra voltages:
Andere Spannungen:
Alimentation voltages spéciaux:
Otros voltajes especiales:
Capacità deposito - Storage bin capacity
Inhalt des Vorrats-Eisbehänders
Capacité de la réserve - Capacidad del deposito
Carrozzeria
External structure
Ausfühnrung
Carrosserie
Carroceria
(*)
R 134a
3/4” Gas
mm. Ø 20
220V-240V - 50 Hz
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
RAFFR. AD ARIA/AIR COOLED
LUFTGEKÜHLT/REFR. A AIR
REFR. A AIRE
kg. 20
kg. 53
°C
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
a richiesta
on request
Lieferbar auf Wunsch
sur demande
según pedido
inox
Peso netto/Net weight/Netto Gewcht
Poids net/Peso neto
Temperatura acqua/Water temperature
Wassertemperatur/Température eau
Temperatura agua
W 400
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
RAFFR. AD ACQUA/WATER COOLED
WASSERGEKÜHLT/REFR. A EAU
REFR. A AGUA
o acqua: consumo n. 20 litri per ora*
or water: consumption n. 20 litres per hour*
oder Wasser: Verbrauch n. 20 liter pro Stunde*
ou eau: consommation n. 20 litres par heure*
o agua: consumo n. 20 litros para hora*
Temperatura ambiente
Ambient temperature
Raumtemperatur
Température ambiante
Températura ambiente
Raffreddamento unità condensatrice
aria
Condensing unit cooling
air
Kondensatoreinheit
Luft
Refroidissement de l’unité de condensation air
Refrigeración de la unidad condensadora
aire
PRODUZIONE DI GHIACCIO
ICE PRODUCTION
EIS PRODUKTION
PRODUCTION DE GLACE
PRODUCICON DE HIELO
Temperatura acqua/Water temperature
Wassertemperatur/Température eau
Temperatura agua
Temperatura ambiente
Ambient temperature
Raumtemperatur
Température ambiante
Températura ambiente
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
ELECTRONIC MODULAR
FLAKERS mod. F80 (R 134a)
con temperatura acqua 15 °C
with water temperature 15 °C
mit Wassertemperatur 15 °C
avec température eau 15 °C
con temperatura agua 15 °C
°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
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
Dimensioni / Dimensions / Masse / Dimensions / Dimensiones
835
570
44
218
50
695
624
600
570
4
GB
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
kg. 120
Refrigerante/Refrigerant/Kältemittel
Réfrigérant/Refrigerant
W 480
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:
Extra voltages:
Andere Spannungen:
Alimentation voltages spéciaux:
Otros voltajes especiales:
Capacità deposito - Storage bin capacity
Inhalt des Vorrats-Eisbehänders
Capacité de la réserve - Capacidad del deposito
Carrozzeria
External structure
Ausfühnrung
Carrosserie
Carroceria
3/4” Gas
mm. Ø 20
220V-240V - 50 Hz
a richiesta
on request
Lieferbar auf Wunsch
sur demande
según pedido
97
108 117 120 kg
21°
95
105 115 117 kg
32°
90
100 107 110 kg
38°
87
97
102 105 kg
°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
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
750
510
680
45
95~
150
905
680
10°
Temperatura acqua/Water temperature
Wassertemperatur/Température eau
Temperatura agua
con temperatura acqua 15 °C
with water temperature 15 °C
mit Wassertemperatur 15 °C
avec température eau 15 °C
con temperatura agua 15 °C
Dimensioni / Dimensions / Masse / Dimensions / Dimensiones
32° 21° 15° 10°
RAFFR. AD ARIA/AIR COOLED
LUFTGEKÜHLT/REFR. A AIR
REFR. A AIRE
kg. 27
kg. 64
°C
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
90
(*)
R 134a
inox
Peso netto/Net weight/Netto Gewcht
Poids net/Peso neto
Temperatura acqua/Water temperature
Wassertemperatur/Température eau
Temperatura agua
Temperatura ambiente
Ambient temperature
Raumtemperatur
Température ambiante
Températura ambiente
Potenza assorbita/Absorbed power/Leistungsaufnahme
Puissance absorbée/Potencia Absorbida
RAFFR. AD ACQUA/WATER COOLED
WASSERGEKÜHLT/REFR. A EAU
REFR. A AGUA
o acqua: consumo n. 24 litri per ora*
or water: consumption n. 24 litres per hour*
oder Wasser: Verbrauch n. 24 liter pro Stunde*
ou eau: consommation n. 24 litres par heure*
o agua: consumo n. 24 litros para hora*
Temperatura ambiente
Ambient temperature
Raumtemperatur
Température ambiante
Températura ambiente
Raffreddamento unità condensatrice
aria
Condensing unit cooling
air
Kondensatoreinheit
Luft
Refroidissement de l’unité de condensation air
Refrigeración de la unidad condensadora
aire
PRODUZIONE DI GHIACCIO
ICE PRODUCTION
EIS PRODUKTION
PRODUCTION DE GLACE
PRODUCICON DE HIELO
5
GB
GENERAL INFORMATION AND INSTALLATION
A INTRODUCTION
the step-by-step procedures for the installation,
start- up and operation, maintenance and
cleaning for the F80 - F125 Modular Icemakers.
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.
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.
4
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.
6
5
6
7
8
c) Pull out the polystyre posts from the corners and then remove the carton.
d) Lift the whole carton and pull it out from
the device.
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.
Remove all internal support packing and
masking tape.
Check that refrigerant lines do not rub against or touch other lines or surfaces, and that
the fan blades move freely.
Check that the compressor fits snugly onto
all its mounting pads.
See data plate on the rear side of the unit and
check that local main voltage corresponds
with the voltage specified on it.
GB
C. LOCATION AND LEVELLING
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.
1 Position the storage bin in the selected permanent 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.
NOTE. All external wiring should conform to
national, state and local standards and regulations.
Check voltage on the line and the ice maker’s
data plate before connecting the unit.
NOTE: This ice flake maker contains sensitive and highly precise parts. Knocks and
heavy blows must therefore be avoided.
7
GB
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.
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
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.
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.
F. FINAL CHECK LIST
1 Is the unit in a room where ambient temperatures 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)
8
GB
4 Have all the electrical and plumbing connections been made, and is the water supply
shut-off valve open?
9 Have the bin liner and cabinet been wiped
clean?
5 Has the voltage been tested and checked
against the data plate rating?
10 Has the owner/user been given the User
Manual and been instructed on the importance of periodic maintenance checks?
6 Has the water supply pressure been checked 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?
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.
8 Check all refrigerant lines and conduit lines
to guard against vibrations and possible failure.
12 Has the owner been given the name and thephone number of the authorized Service
Agency serving him?
G. INSTALLATION PRACTICE
1
2
3
4
5
6
7
8
9
10
Hand shut-off valve
Water filter
Water supply line
3/4" GAS male fitting
Power line
Main switch
Drain fitting
Vented drain
Vented drain
Open trapped vented drain
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).
9
GB
OPERATING INSTRUCTIONS
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 its probe within the condenser
fins (Fig.2).
START UP
After having correctly installed the ice maker and
completed the plumbing and electrical
connections, perform the following “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.
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. Every time the unit is 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).
NOTE. The first ice bits that drop into the ice
storage bin are not so hard as the evaporating
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
WATER
LEVEL
RESET
88
GEAR MOTOR
77
ROTATION
12
CONDENSER TEMP.
T>1°C
11
11
EVAPORATOR TEMP.
10
10
DATA PROCESSOR
SENSORS
13
RELAYS
55
GEAR MOTOR
44
ICE LEVEL CONTROL
COMPRESSOR
9
9
10
L
L
1
1
N
N
2
2
CONTACTOR COIL
66
33
TRIAC
FAN MOTOR
TRANSF.
ELECTRONIC
CARD
GB
FIG. 2
WATER
LEVEL
RESET
88
GEAR MOTOR
77
ROTATION
12
12
CONDENSER TEMP. T 40÷50°C
11
EVAPORATOR TEMP.
10
DATA PROCESSOR
SENSORS
13
RELAYS
55
GEAR MOTOR
44
ICE LEVEL CONTROL
COMPRESSOR
9
9
L
L
1
1
N
N
2
2
CONTACTOR COIL
66
33
TRIAC
FAN MOTOR
TRANSF.
ELECTRONIC
CARD
FIG. 3
WATER
LEVEL
88
RESET
77
ROTATION
12
CONDENSER TEMP.
11
EVAPORATOR TEMP. T>-1°C
10
10
DATA PROCESSOR
SENSORS
13
GEAR MOTOR
RELAYS
55
44
ICE LEVEL CONTROL
COMPRESSOR
9
9
L
L
1
1
N
N
2
2
CONTACTOR COIL
66
GEAR MOTOR
33
TRIAC
FAN MOTOR
TRANSF.
ELECTRONIC
CARD
11
GB
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 of the RED WARNING LIGHT (Fig.3).
NOTE. If, after ten minutes from the
compressor start-up, the evaporating temperature has not dropped down to a value
lower than -1°C (30°F) the evaporating temperature sensor detects such an abnormal
situation and stops consequently the unit
operation (first the compressor and 3' later
the gear reducer).
In this circustance, the 5th warning 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.
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.
OPERATION CHECKS UPON THE UNIT
START UP
E. Check for the correct CUT-OUT and
CUT-IN of the water level sensor by first shutting
closed the water shutoff valve on the water
supply line.
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.
FIG. 4
WATER
LEVEL
RESET
88
77
ROTATION
12
12
CONDENSER TEMP.
T>75°C
11
11
EVAPORATOR TEMP.
10
10
DATA PROCESSOR
SENSORS
13
GEAR MOTOR
RELAYS
44
COMPRESSOR
9
9
12
1
1
N
N
2
2
66
55
ICE LEVEL CONTROL
L
L
CONTACTOR COIL
GEAR MOTOR
33
TRIAC
FAN MOTOR
TRANSF.
ELECTRONIC
CARD
GB
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 the gear reducer) and the YELLOW warning
LED will glow to signal the shortage of water
(Fig. 4)
After 3 minutes the unit resumes its total 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 cause 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).
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.
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 - through the 3 minutes STANDBY period - with the extinguishing of the YELLOW
LED.
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
WATER
LEVEL
88
RESET
GEAR MOTOR
77
ROTATION
12
12
CONDENSER TEMP.
11
11
EVAPORATOR TEMP.
10
10
DATA PROCESSOR
SENSORS
13
13
RELAYS
55
44
ICE LEVEL CONTROL
COMPRESSOR
9
9
L
L
1
1
N
N
2
2
CONTACTOR COIL
66
GEAR MOTOR
33
TRIAC
FAN MOTOR
TRANSF.
ELECTRONIC
CARD
13
GB
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 PROCEDURES.
NOTE. In the front of the PC Board is located
a small 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 always by means of the I/R Trimmer.
M. If previously installed, remove the 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
WATER
LEVEL
88
REINSERZIONE
RESET
GEAR MOTOR
7
ROTATION
12
CONDENSER TEMP.
11
EVAPORATOR TEMP.
10
DATA PROCESSOR
SENSORS
13
RELAYS
5
GEAR MOTOR
4
ICE LEVEL CONTROL
COMPRESSOR
9
14
L
1
N
2
6
3
TRIAC
FAN MOTOR
TRANSF.
ELECTRONIC
CARD
GB
PRINCIPLE OF OPERATION
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.
FLOAT VALVE
FREEZER
WATER INLET LINE
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”.
ICE SPOUT
FLOAT TANK
FREEZER WATER
FEED LINE
FLOAT TANK
ICE SPOUT
FLOAT VALVE
FREEZER
FREEZER
WATER
FEED LINE
WATER INLET 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 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.
FLOAT TANK
FLOAT VALVE
ICE SPOUT
WATER INLET LINE
W
FREEZER
FREEZER
WATER
FEED LINE
15
GB
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 evaporate, there by it changes from liquid into vapor.
The vapor refrigerant then passes through the
16
EVAPORATOR
ACCUMULATOR
CAPILLARY TUBE
DISCHARGE LINE
COMPRESSOR
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.
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.
SUCTION LINE
By running the ice maker, i.e. by putting the unit
under power, starts the automatic and continuous 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.
FAN MOTOR
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.
GB
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 cooled 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.
FIG. 6
WATER
LEVEL
RESET
88
GEAR MOTOR
77
ROTATION
DATA PROCESSOR
SENSORS
13
12
12
CONDENSER TEMP.
T<1°C
11
11
EVAPORATOR TEMP.
10
10
RELAYS
55
GEAR MOTOR
44
ICE LEVEL CONTROL
COMPRESSOR
9
9
L
L
1
1
N
N
2
2
CONTACTOR COIL
66
33
TRIAC
FAN MOTOR
TRANSF.
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.
ELECTRONIC
CARD
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.
17
GB
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 thereby 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.
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.
FIG. 7
WATER
LEVEL
RESET
88
GEAR MOTOR
77
ROTATION
12
12
CONDENSER TEMP.
11
11
EVAPORATOR TEMP.
10
10
DATA PROCESSOR
SENSORS
13
RELAYS
55
GEAR MOTOR
44
ICE LEVEL CONTROL
COMPRESSOR
9
9
18
L
L
1
1
N
N
2
2
CONTACTOR COIL
66
33
TRIAC
FAN MOTOR
TRANSF.
ELECTRONIC
CARD
GB
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.
Refrigerant metering device:
Capillary tube
Gas charge (R 134a)
Air cooled
F 80
300 gr
F 125
400 gr
Water cooled
300 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
17÷18 bar
17 bar
2.5 bar
2.5 bar
Working pression
(with 21°C ambient temperature)
Pression
discharge
Pression
suction
19
GB
COMPONENTS DESCRIPTION
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 refrigerant 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 microprocessor let the ice maker to continue its operations 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.
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.
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.
20
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.
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. 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.
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.
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.
Resistive values
Evaporatore probe
KTY 10.62
T°C
-30
-20
-10
0
10
20
25
30
40
50
60
70
80
Rmin
1223
1345
1474
1611
1757
1910
1990
2067
2226
2395
2569
2752
2941
Rmax
1276
1394
1517
1650
1788
1933
2010
2092
2263
2442
2629
2824
3027
Resistive values
Condenser probe
KTY 11.7
T°C
-30
-20
-10
0
10
20
25
30
40
50
60
70
80
Rmin
1236
1358
1489
1628
1774
1929
2010
2088
2249
2420
2594
2779
2970
Rmax
1301
1422
1547
1683
1824
1972
2050
2134
2308
2490
2681
2880
3087
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.
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 [email protected] 25°C
= 1.5V
Operation temperature
-55°C ÷ +100°C
21
GB
infrared sensor
ice level control - YELLOW LED
F P.C. BOARD
(Dataofprocessor)
blinks fast) 6 seconds later the ice machine resumes
The P.C. BOARD,
in simul-taneous
its plastic box
located
its operationfitted
with the
extinguishing
the
2nd
YELLOW
LED.
in the front of the unit, consists of two separated
printed circuits one at high and the other at low
voltage and
fuses.
Also it consists
F. protected
P.C. BOARDby
(Data
processor)
of five aligned
LEDS
monitoring
the
operation
of
The P.C. BOARD, fitted in its plastic
box located
in
the
front
of
the
unit,
consists
of
two
separated
the machine of three jumpers and of input terprinted circuits one at high and the other at low
minals forvoltage
the leads
of the sensor
as well
and protected
by fuses.probes
Also it consists
of
LEDS
monitoringfor
thethe
operation
of the
as input five
andaligned
output
terminals
leads
of
machine of three jumpers (TEST used only in the
the ice maker
wires.
The
P.C.
factory,electrical
60/70°C used
to set
up the
PCBOARD
Board at
properofsafety
out condensing
and
is the brain
the cut
system
and ittemperature
elaborates,
3' to by pass the 3 minutes Stand By) and of input
through its
micro processor, the signals receiterminals for the leads of the sensor probes as
ved from well
the as
sensors
inoutput
orderterminals
to control
theleads
opeinput and
for the
of
maker electrical
wires.components of
ration of the
theicedifferent
electrical
The P.C. BOARD is the brain of the system and
the ice maker
(compressor,
etc.).
it elaborates,
through itsgear
micro motor,
processor,
the
signals placed
received in
from
the in
sensors
in order
to
The five LEDS,
a row
the front
of the
control the operation of the different electrical
P.C. BOARD,
monitor
theice
following
situations:
components
of the
maker (compressor,
gear
motor, etc.).
The five LEDS, placed in a row in the front of the
LED
P.C. BOARD, monitor the following situations:
GREEN
Unit under electrical power
YELLOWGREEN
LED LED
Unit under electrical
Blinking: power
I/R beam cut out
Steady: storage bin full
YELLOW LED
- Blinking: I/R beam cut
YELLOW LED out
- Steady:
at storage
Unit shut-off
due tounit
a shut-off
too lo-water
level
bin full
into float -tank
Blinking fast: I/R beam resumed
YELLOW
LED
RED LED
Unit shut-off due to a
ON all the time
too lo-water level into
- Unit
float
tankshut-off due
to a too
hi-condensing temperature
RED
LEDshut-off due to a too
- Unit
all the time temperature <+1°C
ON lo-ambient
- Unit shut-off due to a
too hi-condensing
Blinking
temperature
-3Unit
shut-offstart
due to
minutes
upa delay time
too lo-ambient temperature
<+1°C
YELLOW LED
Blinking
3ON
minutes
start
up delay time
all the
time
- Unit shut-off due to the wrong
YELLOW
LED
rotation
direction of gear motor
ON
all
the
time
- Unit shut-off due to the too lo speed
- Unit shut-off due to the
of gear
motor
wrong
rotation
direction
of gear motor
-Blinking
Unit shut-off due to the
too lo speed of gear motor
- Unit shut-off due to a too hi-evaporating
Blinking
temp.
- Unit
shut-off due to a
too>-1°C
hi-evaporating
after 10 temp.
min of operation
>-1°C after 10 min of operation
YELLOW AND RED LED
sensor
out of order
YELLOW
ANDEvaporator
– Blinking:
RED LED
- Blinking: Evaporator sensor
out of order
Steady:
Condenser
sensor
-–Steady:
Condenser
sensor
out of order
out of order
3’3I’NIN/ 6/ 06’0O
UU
TT
’O
SS
TT
AA
NN
DDBB
YYJU
MM
PP
EE
RR
JU
RR
EE
MM
OO
TT
EE
SS
OO
CC
KK
EE
TT
606°0C°COO
UU
TT-7-07°0C°CININ
JU
MM
PP
EE
RR
JU
MM
ICIC
RR
OO
PP
RR
. E. E
PP
RR
OO
MM
I/R
DD
JU
SS
TT
EE
RR
I/RAA
JU
TT
RR
IAIA
CC
PP
OO
WW
EE
RR
BB
ININFF
UU
LL
LL
JP1 TEST
NN
OOWW
AA
TT
EE
RR
JP260/70°C
TT
RR
AA
NN
SS
FF
OO
RR
MM
EE
RR
JP3 3/60'
TT
OOHH
I/LI/O
WWCC
OO
NN
DD
..
LO
TT
EE
MM
PP
..
3’3S
TT
AA
NN
DD
’S
BB
YY
PP
OO
WW
EE
RR
TT
OOHH
I EI E
VV
AA
PP
. T. T
EE
MM
PP
..
WW
RR
OO
NN
GGOO
RRSS
LO
WW
LO
DD
RR
IVIV
EEMM
OO
TT
OO
RR
RR
OO
TT
AA
TT
IOIO
NN
DD
RR
IVIV
EEMM
OO
TT
OO
RR
RR
EE
LL
AA
YY
CC
OO
MM
PP
RR
EE
SS
SS
OO
RR
RR
EE
LL
AA
YY
SYEN
WW
AA
TT
EE
RRSS
EE
NN
SS
OO
RR
SS
OO
CC
KK
EE
TT
FF
UU
SS
EE
OO
PP
TITCIC
AA
LLICIC
EELELE
VV
EE
LL
CC
OO
NN
TR
OO
LS
EE
NN
SS
OO
RRSS
OO
CC
KK
EE
TT
TR
LS
DD
RR
IVIV
EEMM
OO
TO
RRSS
EE
NN
SS
OO
RRSS
OO
CC
KK
EE
TT
TO
CC
OO
NN
DD
EE
NN
SS
EE
RRSS
EE
NN
SS
OO
RRSS
OO
CC
KK
EE
TT
22
EE
VV
AA
PP
OO
RR
AA
TT
OO
RRSS
EE
NN
SS
OO
RRSS
OO
CC
KK
EE
TT
RR
EE
SS
ISIS
TT
AA
NN
CC
EE
TETE
RR
MM
ININ
AA
LL
BB
OO
AA
RR
DD
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.
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.
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.
ANMERKUNG. Es wird empfohlen, alle sechs
Monate den Zustand des Schmiermittels und
des oberen Lagers zu überprüfen.
23
GB
K Gear motor
The gearmotor ismade of a single phase electric 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.
24
GB
ADJUSTMENT, REMOVAL
AND REPLACEMENT PROCEDURES
NOTE. Read the instructions throughly before performing any of the following adjustment
or removal and replacement procedure.
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.
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.
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.
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 corresponding 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.
25
GB
C Replacement of the auger, water seal, bearings 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.
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.
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 lowest sensor in the reverse order.
26
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 connections 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 lowest 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 opening 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.
NOTE. In F 125 and F 80 models inspect the
rectangular rubber seal of the nozzle and, if
damaged, replace it.
6 Proceed with the installation of the new opening in the reverse order.
GB
H Replacement of the screw, seal ring, bearings 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 icebreakers of the evaporators and pull
upwards hard to remove the unit icebreaker
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.
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 icebreaker 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.
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.
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.
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.
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 container. 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.
27
GB
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.
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.
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 icebreaker, install the icebreaker on top of the
screw and fasten it with the upper bolt.
20 Install the screw icebreaker unit in the evaporator. Use the previous points in a reverse order.
28
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. When installing a new fan motor check
that the blades do not touch anything and turn
freely.
GB
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 mounting 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.
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.
8 For the installation of the new evaporator the
process used in a reverse order.
NOTE. Carefully purged the refrigerant circuit
to remove moisture and non-condensable
gases after the replacement of the evaporator.
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.
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.
6 For the installation of the new condensers,
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.
29
GB
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 condenser.
3 Loosen and remove the bolts with which it is
fastened on the base.
4 Unscrew the pipe terminal and pull the plastic 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.
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.
7 For the installation of the new condensers
use the process in reverse order.
NOTE. Carefully purged the refrigerant circuit
to remove moisture and non-condensable
gases after the replacement of the condenser.
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 plastic 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
30
6 Try the capillary tube of the regulating valve
and weld it onto the cold circulation. Then
remove it from the device.
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.
7 For the installation of the new condensers
use the process in reverse order.
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.
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 suction 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.
GB
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.
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.
31
ELECTROLUX
GL90TB R134A
UNITE HERMETIQUE
GP14 TB R134A
230/50/1
230/50/1
F80 A/W
F125 A/W
COMPRESSORE
COMPRESSOR
KOMPRESSOR
VOLTS
32
MODELLO
MODEL
MODELL
R134A
R134a
REFRIGERANTE
REFRIGERANT
KÄLTEMITTEL
400/300gr
300/300 gr.
CARICA
REFRIGERANTE
REFR. CHARGE
BEFÜLLUNG MIT
KÄLTEMITTEL
400W
480W
3000mm.
D int. 0.90
D: 2.2mm
2500mm.
D int. 1.00
D: 2.2mm
3.2A
2.6A
18A
11A
0.200A
0.200A
11.5 KWH/24 HR
9.6 KWH/24 HR
POTENZA
ASS.
ASS.
ASSORBIMENTO
CONSUMO
CAPILLARE
ASSORBITA MARCIA AVVIAMENTO MOTORIDUTTORE
ELETTRICO
CAPILLAR
POWER
AMPS
START
AMPS MOTOREDUCT.
POWER
KAPILLARROHR AUFGENOMMEAMP.
AUFNAHME GETRIECONS.
AMPS
NE LEISTUNG BETRIEB AMP. START
STROMVERBRAUCH
BEMOTOR
TECHNISCHE DATEN DES EISFLOCKENBEREITERS
GB
MV
MR
MC
SC
SL
LA
SH
SS
ST
SO
CA
CT
F
CS
Ventilatoren
Schrittmotor
Verdichter
Platine
Led Schalter
Wasserniveau
Rotationfühler
Kondensator Fühler
Verdampfer Fühler
Optischer Sensor
Anschlusskabel
Steckverbinder
Verriegelung
STart Kondensator
LEGENDE
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
LEGEND
on/off
off
J2
J3
Anlaufverzögerung 3’ Aktiv
3’ delay on
Anlaufverzögerung 3’ Aus
3’ delay off
CABLES COLORS
v = green
r = pink
m = brown
bc = light blue
gv = yellow/green
Allarme 60°C
60°C alarm (water cooled)
Allarme 70°C
70°C alarm (air cooled)
AUS
OFF
Normal Betrieb
Normal operation
AN
ON
Power on
Bin full
No water
Too high cond. temp
3’ stand by
Wrong rotation
too high evap. temp
LEDS INDICATIONS
Test
KABEL FARBEN
v = grun
r = rosa
m = braun
bc = blau
gv = gelbe/grun
off
J1
Ausschaltung
Behälter voll
Fehlendes Wasser
Hochtemperatur
Kondensator
Schnecke sitzt fest
PONTE
JUMPER
L5
L1
L2
L3
L4
STANDARD
SET
LED AUGABEN
WIRING DIAGRAM F80
AIR AND WATER COOLED
220-240/50/1
GB
33
VA
PS
MR
MC
SC
SL
LA
SH
SS
ST
SO
CA
CT
F
CS
Wasser Ventil
Pressostat
Schrittmotor
Verdichter
Platine
Led Schalter
Wasserniveau
Rotationfuühler
Kondensator Fuühler
Verdampfer Fuühler
Optischer Sensor
Anschlusskabel
Steckverbinder
Verriegelung
Start Kondensator
LEGENDE
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
LEGEND
on/off
off
J2
J3
Verspätung 3’ Aktiv
3’ delay on
Verspätung 3’ Aus
3’ delay off
CABLES COLORS
v = green
r = pink
m = brown
bc = light blue
gv = yellow/green
Allarme 60°C
60°C alarm (water cooled)
Allarme 70°C
70°C alarm (air cooled)
AUS
OFF
Normal Betrieb
Normal operation
AN
ON
Power on
Bin full
No water
Too high cond. temp
3’ stand by
Wrong rotation
too high evap. temp
LEDS INDICATIONS
Test
KABEL FARBEN
v = grun
r = rosa
m = braun
bc = blau
gv = gelbe/grun
off
Ausschaltung
Behälter voll
Fehlendes Wasser
Hochtemperatur
Kondensator
Schnecke sitzt fest
J1
L5
L1
L2
L3
L4
PONTE
JUMPER
34
STANDARD
SET
LED AUGABEN
GB
WIRING DIAGRAM F80
AIR AND WATER COOLED
220-240/50/1
MV
MR
MC
SC
SL
LA
SH
SS
ST
SO
CA
CT
F
CS
Ventilatoren
Schrittmotor
Verdichter
Platine
Led Schalter
Wasserniveau
Rotationfühler
Kondensator Fühler
Verdampfer Fühler
Optischer Sensor
Anschlusskabel
Steckverbinder
Verriegelung
STart Kondensator
LEGENDE
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
LEGEND
on/off
off
J2
J3
Verspätung 3’ Aktiv
3’ delay on
Verspätung 3’ Aus
3’ delay off
CABLES COLORS
v = green
r = pink
m = brown
bc = light blue
gv = yellow/green
Allarme 60°C
60°C alarm (water cooled)
Allarme 70°C
70°C alarm (air cooled)
AUS
OFF
Normal Betrieb
Normal operation
AN
ON
Power on
Bin full
No water
Too high cond. temp
3’ stand by
Wrong rotation
too high evap. temp
LEDS INDICATIONS
Test
KABEL FARBEN
v = grun
r = rosa
m = braun
bc = blau
gv = gelbe/grun
off
J1
Ausschaltung
Behälter voll
Fehlendes Wasser
Hochtemperatur
Kondensator
Schnecke sitzt fest
PONTE
JUMPER
L5
L1
L2
L3
L4
STANDARD
SET
LED AUGABEN
WIRING DIAGRAM F125
AIR AND WATER COOLED
220-240/50/1
GB
35
Wasser Ventil
Pressostat
Schrittmotor
Verdichter
Platine
Led Schalter
Wasserniveau
Rotationfuühler
Kondensator Fuühler
Verdampfer Fuühler
Optischer Sensor
Anschlusskabel
Steckverbinder
Verriegelung
Start Kondensator
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
LEGEND
on/off
off
J1
J2
J3
Verspätung 3’ Aktiv
3’ delay on
Verspätung 3’ Aus
3’ delay off
CABLES COLORS
v = green
r = pink
m = brown
bc = light blue
gv = yellow/green
Allarme 60°C
60°C alarm (water cooled)
Allarme 70°C
70°C alarm (air cooled)
AUS
OFF
Normal Betrieb
Normal operation
AN
ON
Test
KABEL FARBEN
v = grun
r = rosa
m = braun
bc = blau
gv = gelbe/grun
off
PONTE
JUMPER
36
STANDARD
SET
LEGENDE
GB
WIRING DIAGRAM F125
AIR AND WATER COOLED
220-240/50/1
GB
SYMPTON
ANALYSE DER FEHLER UND FUNKTIONSSTÖRUNGEN
Unit will not run
No LED lighted-on
POSSIBLE CAUSE
Blown fuse in P.C.Board
Master switch in OFF position
Inoperative P.C.Board
Loose electrical connections
Bin full yellow LED glows Inoperative or dirty ice level control
with no ice in the bin
No water yellow LED
Shortage of water
glows
Water too soft
Red-alarm LED glows
High head pressure
Red-alarm LED blinks
Reverse rotation yellow
LED blinks
Reverse rotation yellow
LED glows
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
Water yellow LED and
red LED ON (steady)
together
Water yellow LED and
red LED blink together
Replace 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.
Inoperative Condenser Sensor
Replace it.
Inoperative Evaporator Sensor
Replace it.
Compressor cycles inter- Low voltage
mittently
Non-condensable gas in system
Compressor starting device with
loose wires
Low ice production
SUGGESTED CORRECTION
Capillary tube partially restricted
Moisture in the system
Low water level in the freezer
Shortage of refrigerant
Pitted or stained auger surface
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
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
37
GB
SYMPTOM
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
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
Drive motor or gear stripped
Moisture in the system
Spout leaking
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
Gear motor noise
Worn rotor bearings
Shortage or poor lubricant in gear
case
Gear case bearings and racers
worn out
Shortage of water
38
Replace water seal
Check and fasten hose clamp
Check and adjust float valve setting
screw
Tighten screws holding the spout
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
Check and replace
Check for proper lubr. opening gear
case. Top of gears must be covered
with lubr.
Check and replace worn parts
Strainer at water inlet fitting
clogged
Remove strainer and clean
Float reservoir water nozzle
clogged-up
Remove float valve and clean nozzle
GB
MAINTENANCE AND CLEANING INSTRUCTIONS
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 reservoir 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.
NOTE. Cleaning requirements vary according to the local water conditions and individual user operation.
6 If required, polish the two sensor rods secured 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.
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.
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.
39
GB
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.
NOTE. It is recommended to use only food
grade and waterproof grease to lubricate the
freezer top bearing.
14Check the quality of ice.
NOTE. It is not abnormal for some water to
emerge fromthe ice spout with the flaker 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.
40
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.
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.
GB
NOTE. The ice produced with the decalcification 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.
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.
ATTENTION use ice produced with the
cleaner solution. Be sure none remains
in the bin.
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.
41
71503135-0-000 service Flakers GB
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement