Scotsman MF 59 SPLIT User manual

MF 59-69
SPLIT
Electronic Modular Super-Flakers
Fabbricatori di Ghiaccio Granulare
Machines á Glace en Supergrains
Service Manual
Manuale di Servizio
Manuel de Service
090144 05 - REV.09-2018

TABLE OF CONTENTS – INDICE – TABLE DES MATIERES
ENGLISH
Table of Contents...............................................................................................................................................................................Page 1
Specifications..............................................................................................................................................................................................2
Technical Specifications..............................................................................................................................................................................2
Unpacking and Inspection...........................................................................................................................................................................3
Location and Levelling ................................................................................................................................................................................3
Typical Installation on Refrigerant Plant .....................................................................................................................................................4
Electrical Connections.................................................................................................................................................................................4
Water Supply and Drain Connections.........................................................................................................................................................4
Refrigerant System .....................................................................................................................................................................................5
Refrigerant System Scheme.......................................................................................................................................................................6
Electrical System.........................................................................................................................................................................................7
PC Board and sensors................................................................................................................................................................................7
MF 59 - Driver configuration/setting procedure...........................................................................................................................................9
MF 69 – Driver configuration/setting procedure........................................................................................................................................12
Wiring Diagram MF 59..............................................................................................................................................................................46
Wiring Diagram MF 69..............................................................................................................................................................................47
ITALIANO
Indice...............................................................................................................................................................................................Pagina 1
Specifiche....................................................................................................................................................................................................2
Specifiche tecniche.....................................................................................................................................................................................2
Disimballaggio ed Ispezione .....................................................................................................................................................................17
Posizionamento e Livellamento ................................................................................................................................................................17
Istallazione Tipica su un Impianto Frigorifero ...........................................................................................................................................18
Collegamenti Elettrici ................................................................................................................................................................................18
Alimentazione Idrica e Scarico Acqua.......................................................................................................................................................18
Circuito Frigorifero.....................................................................................................................................................................................19
Schema del Circuito Frigorifero.................................................................................................................................................................20
Circuito Elettrico........................................................................................................................................................................................21
Scheda Elettronica e Sensori....................................................................................................................................................................21
MF 59 - Procedura configurazione Driver.................................................................................................................................................23
Mf 69 - Procedura configurazione Driver ..................................................................................................................................................26
Schema Elettrico MF 59............................................................................................................................................................................46
Schema Elettrico MF 69............................................................................................................................................................................47
FRANÇAIS
Table des matières.............................................................................................................................................................................Page 1
Spécifications..............................................................................................................................................................................................2
Caractéristiques techniques........................................................................................................................................................................2
Déballage et inspection.............................................................................................................................................................................32
Emplacement et mise à niveau.................................................................................................................................................................32
Installation frigorifique traditionnelle..........................................................................................................................................................33
Raccordement électrique..........................................................................................................................................................................33
Arrivée d’eau et vidange ...........................................................................................................................................................................33
Système frigorifique ..................................................................................................................................................................................34
Schéma du système frigorifique................................................................................................................................................................35
Circuit électrique .......................................................................................................................................................................................36
Carte de régulation électronique et capteurs............................................................................................................................................36
MF 59 - Procedure configuration Driver....................................................................................................................................................38
MF 69 - Procedure configuration Driver....................................................................................................................................................41
Schéma électrique MF 59.........................................................................................................................................................................46
Schéma électrrique MF 69........................................................................................................................................................................47

2
SPECIFICATIONS – SPECIFICHE - SPECIFICATIONS - ESPECIFICACIONES
423
142
830
535 660
180
TECHNICAL SPECIFICATIONS – SPECIFICHE TECNICHE
SPECIFICATIONS TECHNIQUES - ESPECIFICACIONES TECNICAS
MODEL
MODELLO
MODELE
MODELO
VOLTAGE
TENSIONE
VOLTAGE
TENSION
AMPS
AMPERE
AMPS
AMPERIOS
POWER
POTENZA
PUISSANCE
POTENCIA
Watts
FUSE
FUSIBILE
FUSIBLE
FUSIBLE
A
REFRIGERATION REQUIREMENT
POTENZA FRIGORIFERA
PUISSANCE FRIGORIFIQUE
POTENCIA FRIGORIFERA
EVAP. TEMP – COND. TEMP
at/a –21ºC/<+4°C – Watts (Kcal/hr)
WATER CONSUMPTION
CONSUMO ACQUA
CONSOMMATION D’EAU
CONSUMO DE AGUA
l/24 hrs
MF 59 Split 230/50-60/1 0.7 200 10 3000÷3500 (2600÷3000) 700
MF 69 Split 230/50-60/1 1.5 400 10 6000÷7000 (5200÷6000) 1400
POWER CORD
CAVO ELETTR.
ALIMENTATION
CONEXION ELECTR
WATER INLET ¾”
INGR. ACQUA ¾”
ENTREE EAU ¾”
ENTRADA AGUA ¾"
REFR. INLET
INGR. REFR.
ENTREE REFR.
ENTRADA REFR.
REFR. OUTLET
USCITA REFR.
SORTIE REFR.
SALIDA REFR. WATER DRAIN
SCARICO ACQUA
VIDANGE
DESAGÜE
FRONT VIEW
VISTA FRONTALE
VUE DE FACE
VISTA FRONTAL
SIDE VIEW
VISTA LATERALE
VUE DE COTE
V
ISTA LATERAL
REAR VIEW
VISTA POSTERIORE
VUE ARRIERE
VISTA POSTERIOR
TOP VIEW -
V
ISTA DALL’ALTO
VUE DE DESSUS - VISTA SUPERIOR
FRONT SIDE
PANNELLO
FRONTALE
FACADE
PANEL
FRONTAL
ICE DISCHARGE OPENINGS
APERTURE SCARICO GHIACCIO
DESCENTES DE GLACE
A
PERTUR
A
S CAIDA HIELO
MF 69
ONLY
SOLO
SEULEMENT
SOLO
MF 69
ONLY
SOLO
SEULEMENT
SOLO
8 mm
9,5 mm MF 59 121
364
34
83
118

3
UNPACKING AND INSPECTION
1. Call your authorised SCOTSMAN 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 claim form filled in
subject 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
corners and then remove the carton.
4. Remove the front and top panel 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
against or touch other lines or surfaces.
7. See data plate on the rear side of the unit
and check that local main voltage
corresponds with the voltage specified on it.
CAUTION. Incorrect voltage supplied to the
icemaker will void your parts replacement
program.
8. Cut the manufacturer's registration card from
the back cover page of the User Manual and
fill-in all parts including: Model and Serial
Number taken from the data plate.
Forward the completed self-addressed
registration card to SCOTSMAN
EUROPE/Frimont factory.
LOCATION AND LEVELLING
WARNING. This Modular 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 SCOTSMAN Manufacturer's Limited
Warranty resulting in LOSS of warranty coverage.
1. Position the machine in the selected
permanent location.
Criteria for the selection of location include:
MIN MAX
Air temperature 10°C (50°F) 40°C (100°F)
Water temperature 5°C (40°F) 35°C (90°F)
Water pressure 1 bar (14 psi) 5 bar (70 psi)
Electr. voltage variations from
voltage rating specified -10% +10%
on nameplate
Service access: adequate space must be left for all
service connections through the rear of the ice
maker.
1. Lay out on the storage bin top the plan of the
ice machine as it will be located on the bin
and cut one or two openings according to the
Ice Maker model.
2. Install the Modular Superflaker on the
storage bin pay attention to match the ice
chute/s with the Bin Top opening/s.
3. Level the Ice Maker in both the left to right
and front to rear directions by means of the
adjustable legs.
The machine is also equipped with pre-pounched
rectangular openings on the left side panel so to
have the possibility to discharge the ice through the
side of the machine (not recommended).

4
TYPICAL INSTALLATION ON A REFRIGERANT PLANT
POWER
WATER INLET
REFR. OUTLET
REFR. INLET
WATER DRAIN HAND SERVICE
VALVE
HAND DISCONNECT
SWITCH
WATER
FILTER
WATER
VALVE
MF 59-69
ICE MAKER
ELECTRICAL CONNECTIONS
See data plate for current requirements to determine
wire size to be used for electrical connections. All
SCOTSMAN icemakers require a solid earth wire.
All SCOTSMAN 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.
WATER SUPPLY AND DRAIN CONNECTIONS
GENERAL
When choosing the water 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 low
contents of mineral salts), will produce a very hard
flaker ice.
WATER SUPPLY
Connect the 3/4" GAS male of the water inlet fitting,
using the food grade flexible tubing supply with the
unit the cold water supply line with regular plumbing
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 DRAIN
The recommended drain tube is a plastic or flexible
tube with 18 mm (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).
The ideal drain receptacle is a trapped and vented
floor drain.
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.

5
REFRIGERANT SYSTEM
The refrigerant system of the new MF 59-69 Flakers
Split versions consists off:
1 Refrigerant inlet tube; 8 mm
2 Refrigerant outlet tube; 9,5 mm
3 Carel Electronic Expansion Valve E2V…
…operating with its own electronic control (Driver),
Display and Battery (Twin one for MF 69)…
…….and NTC Sensor located on the suction line just
before the KVP valve.
4 Transducer with its own transducer cable
5 Suction pressure regulating valve (Danfoss
KVR 12) to be adjusted at -21°C (18 bar)
6 Two hi pressure safety valves on hi and low
side set up respectively at 60 and 30 bar.
The refrigerant system is supplied completely sealed
with two rubber caps on the inlet and outlet copper
tubes.

REFRIGERANT SYSTEM SCHEME
ELECTRONIC
EXPANSION
VALVE
KVP
REFRIGERANT
INLET - LIQUID
REFRIGERANT
OUTLET - GAS
MF 59
ELECTRONIC
EXPANSION
VALVE
KVP
REFRIGERANT
INLET - LIQUID
REFRIGERANT
OUTLET - GAS
ELECTRONIC
EXPANSION
VALVE
MF 69
Recommended refrigerant copper tubes size are:
LIQUID LINE GAS LINE
MF 59 8 mm – 1/3” 9,53 mm - 3/8”
MF 69 8 mm – 1/3” 9,53 mm - 3/8”

7
ELECTRICAL SYSTEM
The Superflakers models MF 59 and MF 69 use, like
their compact versions MF 56/66, the typical PC
Board used in our Flaker machines.
On model MF 69, in addition to the Main PC Board, it
is also used the interface PC Board of the model MF
66 so to have the possibility to control the operation
of two different drive motors and optical ice level
controls.
On the back side of the unit there is a open hole
(plugged with a rubber cup) to electrically connect the PC Board to a remote control (Timer and/or remote switch)
PC BOARD
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,
protected by a varistor on power IN and by a fuse on
power OUT, integrated with six small jumpers and an
water sensitivity adjusting trimmer.
Also it consists of five aligned LEDS monitoring the
operation of the machine 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
INTERFACE PC BOARD
NO WATER
BIN FULL
POWER
TOO HI EVAP TEMP
TOO LOW AMBIENT TEMP
STAND BY
WRONG ROTATION

8
operation of the different electrical components of the
ice maker (gear motor, solenoid valve, 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 (steady) Unit shut-off at full storage bin
(blinking slow) Unit in shut-off procedure at full storage bin (I/R beam cutted)
(blinking fast) Unit restart after the shut-off at bin full (I/R beam resumend)
YELLOW LED Unit shut-off due to a too low-water level into float tank
RED LED (steady) Unit shut-off due to a too low-ambient temperature <+3°C
(blinking) 3 minutes delay time at start up
(blinking 3 times) Too low room temperature (<+3°C)
YELLOW LED (steady) Unit shut-off due to the wrong direction or no rotation of gear motor
Unit shut-off due to the too low speed of gear motor
(blinking) Unit shut-off due to a too hi-evaporating temp. > 0°C after 10 minutes from start up
Unit shut-off due to a too lo-evaporating temp. (< -30°C)
YELLOW & RED LED (steady) Condenser sensor out of order
YELLOW & RED LED (blinking) Evaporator sensor out of order
YELLOW & RED LED (blinking alternate) Ice level control out of order
The P.C. Board has also six small jumpers which
work as described in details here below (from left to
right)
JP1 Purge
Open on machines equipped with the purge solenoid
valve to purge/drain out the water from the machine
at every start up
JP2 PWD
Open on model equipped with the pump out system
of drain water – NOT USED/CLOSED on MF 59/MF 69
JP3 3/60 MINUTES DELAY
Closed for 3 minutes delay at start up – Open for 60
minutes delay on start up (ONLY ON MODEL MF 66)
JP4 TEST
Always open – It’s used ONLY in the factory to start
up all electrical parts together. If left in place, the
machine runs for 3 minutes later it stops with all
LEDs blinking.
JP5 6/12 MONTHS CLEANING REMIND
Closed to remind the 6 months water system
cleaning throu the red light. Open for 12 months
remind
JP6 60/70°C HI CONDENSING TEMP. ALARM
Closed for 70°C setting. Open for 60°C (NOT USED
ON MF 59/MF 69)
NOTE. To by-pass the delay time at every start-up,
just close the TEST JP4 contacts with PC Board
energised
The Water Sensitivity trimmer is used to modify a
little bit the current transmitted through the two metal
pins of the water level sensor to the PC Board.
INTERFACE P.C. BOARD (Only on MF 69 Model)
Used only on MF 69 model, it allows to elaborate the
signal received from the two gear motor
rotation/direction sensors as well as from the two ice
bin level light controls transmitting just one signal to
the Main P.C. Board.
In practice the Interface P.C. Board is equipped by
four INLET sockets (two for the drive motor
rotation/direction sensors and two for the ice level
controls) and two OUTLET plugs connected to the
unit P.C. Board.
EVAPORATOR TEMPERATURE SENSOR
The evaporator sensor probe is inserted into its bulb
holder which is welded on the evaporator outlet line.
It detects the temperature of the refrigerant on the
line out from the evaporator by transmitting a low
voltage current to the P.C. Board.
According to the current received, the PC Board let
the ice maker run or not.
In case the evaporating temperature is above 0°C
(30°F), after 10 minutes from the unit start-up, or
below -25°C, the evaporator sensor signals to the PC
Board to stop immediately the machine, with the
blinking of the 5th YELLOW LED.
FLOAT RESERVOIR WATER LEVEL SENSOR
SYSTEM.
This water level sensor consists of two small
stainless steel pins vertically fitted on 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 bottom of the
metal pins are in contact with water transmitting a low
power current back to the PC Boards.