Scotsman MC 45 User manual

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SERVICE MANUAL
MC 15
MC 45
R 404 AVERSION
Electronic
modular cubers
MS 1000.10 REV. 06/2003

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TABLE OF
CONTENTS Table of contents
Specifications MC 15
Specifications MC 45
GENERAL INFORMATION AND INSTALLATION
Introduction
Unpacking and Inspection - Ice maker
Unpacking and Inspection - Storage bin
Location and levelling
Stacking installation
Stacking installation - Mixed units
Stacking installation - Electronic units
Electrical connections
Water supply and drain connections
Final check list
Installation practice
OPERATING INSTRUCTIONS
Start up
Operatiobnal checks
OPERATING PRINCIPLES (How it works)
Freezing cycle
Harvest cycle
Control sequence
Component description
ADJUSTMENT, REMOVAL AND REPLACEMENT PROCEDURES
Adjustment of the cube size
Remplacement of evaporator temperature sensor
Remplacement of condenser temperature sensor
Remplacement of ice level light control
Remplacement of P.C. Board
Remplacement of the water pump
Remplacement of water inlet solenoid valve
Removal of the flow control
Remplacement of hot gas valve coil
Remplacement of water drain solenoid valve (Optional)
Remplacement of fan motor
Remplacement of spray bar
Remplacement of drier
Remplacement of hot gas valve body
Remplacement of evaporator platen
Remplacement of air cooled condenser
Remplacement of water cooled condenser
Replacement of water regulating valve (water cooled models)
Replacement of compressor
Wiring diagram
Service diagnosis
MAINTENANCE AND CLEANING INSTRUCTIONS
General
Icemaker
Cleaning instructions of water system
2
3
5
18
20
21
22
26
27
27
27
27
27
27
27
27
28
28
28
28
28
29
29
29
29
30
31
35
37
37
38
13
14
7
7
7
8
8
8
10
11
11
11
12

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SPECIFICATIONS
ELECTRONIC MODULAR CUBER MODEL MC 15
I mportant operating requirements:
MIN.
Air temperature 10°C (50°F)
Water temperature 5°C (40°C)
Water pressure 1 bar (14 psi)
Electr. voltage variations
from voltage rating
specified on nameplate -10%
180
170
160
150
140
130
120
110
100
90
80
Kg.
32 10 °C27 21 15
MODÈLES REFROIDIS PAR AIR
TEMPÉRATURE DE L'EAU
TEMPÉRATURE AMBIANTE
PRODUCTION DE GLACE EN 24 H
32
38
10
21
°C180
170
160
150
140
130
120
110
100
90
80
Kg.
32 10 °C27 21 15
MODÈLES REFROIDIS PAR EAU
TEMPÉRATURE DE L'EAU
TEMPÉRATURE AMBIANTE
PRODUCTION DE GLACE EN 24 H
10
21
32
38
°C
ice making capacity
MAX.
40°C (100°F)
35°C (90°F)
5 bars (70 psi)
+10%
NOTE.Thedailyice-makingcapacityisdirectlyrelatedtothecondenserairinlettemperature,water
temperature and age of the machine.
Tokeepyour SCOTSMAN MODULARCUBER atpeakperformance levels,periodicmaintenance
checks must be carried out as indicated on page 37 of this manual.
Productionchartsshownareindicatingthe production of MCM and MCL models. For MCS models
ice production is approx. 10% lower.
AIR COOLED MODELS
AMBIENT TEMPERATURE
WATER TEMPERATURE
ICE PRODUCED PER 24 HRS
AIR COOLED MODELS
AMBIENT TEMPERATURE
WATER TEMPERATURE
ICE PRODUCED PER 24 HRS
WATER COOLED MODELS

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1.5
MC 15 AS 6B Air Stainless steel
MC 15 WS 6B Water Stainless steel
Model Cond. unit Finish Comp. HP Water req. - lt/24 HR
SPECIFICATIONS
300
1700*
MC 15 - MACHINE SPECIFICATIONS
DIMENSIONS:
HEIGHT 499 mm.
WIDTH 1073 mm.
DEPTH 534 mm.
WEIGHT 117 Kgs.
ACCESSORIES
KSC 11: Cube stacking kit
220-230/50/1 7 1250 25.7 3 x
Starts Electric power cons.
amps. Kwh x 24 HR
Basic electr. Amps Watts N. of wires Amps. fuse
230/50/1N5.5 32 3 x 1.5 m/m220
400/50/3N5 x 1.5 m/m210
Cubes per harvest: MCL-15 72 large - MCM-15 102 medium - MCS 15 198 small
* At 15°C (60°F) water temperature

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310
300
290
280
270
260
250
240
230
220
210
200
190
180
Kg.
32 10 °C27 21 15
MODÈLES REFROIDIS PAR AIR
TEMPÉRATURE DE L'EAU
TEMPÉRATURE AMBIANTE
PRODUCTION DE GLACE EN 24 H
32
38
10
21
°C
MODÈLES REFROIDIS PAR EAU
310
300
290
280
270
260
250
240
230
220
210
200
190
180
Kg.
32 10 °C27 21 15
TEMPÉRATURE DE L'EAU
TEMPÉRATURE AMBIANTE
PRODUCTION DE GLACE EN 24 H
10
21
32
38
°C
ice making capacity
AIR COOLED MODELS
AMBIENT TEMPERATURE
WATER TEMPERATURE
ICE PRODUCED PER 24 HRS
AMBIENT TEMPERATURE
WATER TEMPERATURE
ICE PRODUCED PER 24 HRS
WATER COOLED MODELS
SPECIFICATIONS
ELECTRONIC CUBER MODEL MC 45
I mportant operating requirements:
MIN.
Air temperature 10°C (50°F)
Water temperature 5°C (40°C)
Water pressure 1 bar (14 psi)
Electr. voltage variations
from voltage rating
specified on nameplate -10%
MAX.
40°C (100°F)
35°C (90°F)
5 bars (70 psi)
+10%
NOTE.Thedailyice-makingcapacityisdirectlyrelatedtothecondenserairinlettemperature,water
temperature and age of the machine.
Tokeepyour SCOTSMAN MODULAR CUBER atpeakperformancelevels,periodic maintenance
checks must be carried out as indicated on page 37 of this manual.
Production charts shown are indicating the production of MCM and MCL models. For MCS models
ice production is approx. 10% lower.

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MC 45 AS 6B Air Stainless steel
MC 45 WS 6B Water Stainless steel 2.5
Model Cond. unit Finish Comp. HP Water req. - lt/24 HR
SPECIFICATIONS
660
2800*
MC 45 - MACHINE SPECIFICATIONS
DIMENSIONS:
HEIGHT 860 mm.
WIDTH 1073 mm.
DEPTH 554 mm.
WEIGHT 185 Kgs.
ACCESSORIES
KSC 11: Cube stacking kit
220-230/50/1 7 2400 50 3 x
Basic electr. Amps Watts N. of wires Amps. fuse
230/50/1N10 66 3 x 1.5 m/m220
400/50/3N5.5 14 5 x 1.5 m/m210
Starts Electric power cons.
amps. Kwh x 24 HR
Cubes per harvest: MCL-45 144 large - MCM-45 204 medium - MCS 45 396 small
* At 15°C (60°F) water temperature

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A. INTRODUCTION
This manual provides the specifications and the
step-by-stepproceduresfortheinstallation,start-
up and operation, maintenance and cleaning for
the SCOTSMAN MODULAR CUBERS.
The Electronic Modular Cubers 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.
These icemakers have been engineered to our
own rigid safety and performence standards.
NOTE.Toretainthesafetyandperformance
built into this icemaker, it is important that
installation and maintenance be conducted
in the manner outlined in this manual.
Storage Bin
Since the MC series Modular Cubers do not
have their own attached ice storage bins, it is
necessaryto usean auxiliarybin suchas theBin
B 350 or B 550.
B. UNPACKING AND INSPECTION
Modular Cuber
1. CallyourauthorizedSCOTSMANDistributor
or Dealer for proper installation.
2. Visually inspect the exterior of the packing
and skid. Any severe damage noted should be
reportedtothedeliveringcarrierandaconcealed
damage claim form filled in subjet to inspection
of the contents with the carrier’s representative
present.
3. a)Cutandremovetheplasticstripsecuring
the carton box to the skid.
b) Remove the packing nails securing the
carton box to the skid.
c)Cutopenthetopofthecartonandremove
the polystyre protection sheet.
d) Pull out the polystyre posts from the
corners and then remove the carton.
4. Remove top and sides panels of the unit
and inspect for any concealed damage. Notify
carrier of your claim for the concealed damage
as stated in step 2 above.
GENERAL INFORMATION AND INSTALLATION
5. Loosetwonutsonleftandrightssideofthe
unit base and remove it from the skid. Save the
two bolts and nuts to mount the machine on
storage bin or on top of another Modular Cuber.
6. Remove all internal support packing and
masking tape and the hardware package.
7. Check that refrigerant lines do not rub
againstortouchotherlinesorsurfaces,andthat
the fan blade moveS freely.
8. Checkthatthecompressorfitssnuglyonto
all its mounting pads.
9. 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.
10. Remove the manufacturer’s registration
card from the inside 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 Frimont/Scotsman Europe
factory.
Storage bin
1. Followthesteps1,2and 3abovetounpack
the storage bin.
2. Unloose the two bolts and remove the
protec tion plate from the drain fitting.
3. Carefully lay it down on its rear side and fit
the four legs into their sockets.
4. Remove all internal support packing and
masking tape as well as the plastic ice cube
deflector.
5. Remove the manufacturer’s registration
card from the inside 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 Frimont/Scotsman Europe
factory.

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C. LOCATION AND LEVELLING
WARNING.ThisIceCuber isdesignedfor
indoorinstallationonly.Extendedperiods
of operation at temperature exceeding
the following limitations will constitute
misuseunderthetermsoftheSCOTSMAN
Manufacturer’sLimitedWarrantyresulting
in LOSS of warranty coverage.
1. Position the Bin in the selected permanent
location.
Criteria for selection of location include:
a)Minimumroomtemperature10°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.
d)Serviceaccess:adequatespacemustbe
leftforallserviceconnectionsthroughtherearof
the ice maker. A minimum clearance of 15 cm
(6")mustbeleftatthesidesoftheunitforrouting
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.
3. InspecttheStorageBintopmountinggasket
which should be flat with no wrinkles, to provide
a good sealing when the Modular Cuber is
installed on top of it.
4. Place the Modular Cuber on top of Storage
bin using care not to wrinkle or tear the gasket.
5. LiftalittlebittheModularCuberrightsidein
order to be able to mount the ice level control
bracket taking care to align the hole located on
unit base to mate with the one on the top of the
Bin.
6. Remove the PVC plastic plug closing the
round hole located on the right side of the ice
chute opening.
7. Tracetheicelevelcontrolassy,securedfor
the transport on top of the evaporator of the
Modular Cuber, and direct it down through the
round hole into the Storage Bin.
8. Fasten the ice level control assy on its
bracket by means of the two screws found in the
hardware package supplied with the unit.
9. Make a cut (shear) in the PVC plastic plug
that goes from its edge to the center; insert the
ice level control cable in the center of the plastic
plugsotopreventitfromanysortofcontactwith
the unit frame, then place again the PVC plug in
the round hole keeping the cable exceeding
portion inside the unit.
10. Install the plastic ice cube deflector by
hooking it on the flange of the ice chute opening
in unit base (see illustration).
11. SecuretheModularCuberonthetopofthe
StorageBinusingthetwoboltsanddiberwasher
foundinthehardwarepackagesuppliedwiththe
unit.
D. ISTACKING INSTALLATION
A Stacking Kit KSC 11 is available as an
accessory on request to allow the installation of
two Modular Cubers one on top of the other.
The Stacking Kit is consisting of:
a)aplasticreinforcedIceChuteConnection
b) an Interface P.C. Board
c) an Extension Cable
d) an adhesive Rubber Stripe
enabling to cover any stacking installation
combination as:
a) When stacking an Electronic Modular
Cuber on an Electromechanical type (Earlier
series).
b) When stacking two Electronic Modular
Cubers.
Mixed units installation
1. Unloose the four screws and remove the
top panel.
2. Remove the two plastic plugs from the
upperedgesofthetwosideframesofthebottom
unit.
3. Trace and remove from the top of the
evaporatorofElectronicCuberthemetalbracket
used to secure the ice level control assy inside
the storage bin.
4. Lift a little bit the Modular Cuber right side
in order to be able to mount the ice level control
bracket taking care to align the hole located on
unit base to mate with the one on the top of the
Bin.

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thentopassthroughtheroundholeprovidedinto
thebaseoftheElectronicModularCuber(Upper
unit).
10. Connect the electric plug of the ice level
control cable to the Cable Extension, then plug-
in this one into its P.C. BOARD socket.
11. RotatetheTRIMMERsettingscrewlocated
in the front of P.C. BOARD clockwise, to its
maximum power, so to compensate the greater
resistence caused by the addition of the Cable
Extension.
12. Stick,withaccuracy,therubberstripeonto
theupperedgeofthefrontpanelofthelowerunit
in order to fill the air gap between the two
machines.
13. Place again in their position the two ice
chutes and finally re-fit all the service panels
previously removed.
5. Put the Electronic Modular cuber on top of
the Electromechanical unit securing them by
meansoftheboltsandnutsfoundinthehardware
package supplied with the machine.
6. Removetheicechutefromboththeunitand
insert, through the ice discharge opening of the
upper unit, the plastic reinforced Ice Chute
Connection.
7. Disconnect the ice level control terminal
plugfromtheP.C.BOARDofElectronicModular
Cuber.
8. Install and fasten the ice level control assy
on its bracket by means of the two screws found
in the hardware package supplied with the unit.
9. Direct ice level control cable first to pass
through the ice discharge opening of the bottom
machine with the protective sheath correctly
located in correspondance of this opening and

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5. Disconnect the ice level control terminal
plug from the P.C. Board of the upper Electronic
Modular Cuber (now colled secondary).
6. Secure the interface P.C. Board to the
contactor metal bracket of the lower unit (now
calledprimary) bymeansofthesuppliedplastic
clamp.
7. Disconnect the ice level control terminal
plugfrom theP.C. Boardof theprimary unitand
connect it to the INLET socket of the interface
P.C. Board (shorter wire).
8. Connect the primary OUTLET terminal
plugofthe Interface P.C.Board(wire of medium
lenght) to the P.C. Board socket of the primary
unit.
9. Connect the secondary OUTLET plug
(longer wire) of the interface P.C. Board to the
P.C. Board socket of the secondary unit (see
drawing).
10. Turn the TRIMMER setting screw (located
on the front center of P.C. Board) of the ice level
control of the secondary unit clockwise to its
maximum power (Only on Syen type).
Electronic units installation
1. Unloose the four screws and remove the
top panel.
2. Remove the two plastic plugs from the
upperedgesofthetwosideframesofthebottom
unit.
3. Put the second Electronic Modular Cuber
onto the bottom one and after having alignet the
two cabinets secure them by means of the bolts
and nuts founded in the hardware package
supplied with the machine.
4. Remove the ice chute from both the unit
and insert, through the ice discharge opening of
the upper unit, the plastic reinforced Ice Chute
Connection.
ATTENTION. All the two PC Boards
installed on the two machines as well as
the interface PC Board supplied in the
KSC 11 Kit must be of the same supplier
(Syen or Pro.EI.Ind.).
Ifnottheunitwiththedifferentoneremains
OFF at storage bin full.