Nordcap SCN 35 User manual

SDN 25
SCN 35
SCN 45
Automatic cubers
Automatic Kegeleisbereiter
090091.05 - REV. 05/2008

TABLE OF CONTENTS PAGE INHALTSVERZEICHNIS SEITE
GENERAL INFORMATION AND INSTALLATION 1 ALLGEMEINES UND INSTALLATION 14
Introduction 1 Einführung 14
Unpacking and inspection 1 Auspacken und Inspektion 14
Location and levelling 1 Maschinenplatz und lotgerechte Austellung 14
Electrical connection 1 Elektrische Anschlüße 15
Water supply and drain connection 2 Wasserversorgung und Abflußleitungen 15
Final check list 3 Schlußkontrollen 15
Installation practice 3 Installation 16
OPERATING INSTRUCTION 4 BETRIEBSANLEITUNG 17
Starp up 4 Inbetriebnahme 17
Operational checks 4 Ueberprüfung im Betrieb 17
OPERATING PRINCIPLES 6 FUNKTIONSSYSTEME 19
Freezing Cycle 6 Gefrierprozess 19
Harvest Cycle 6 Abtauprozess 19
Control sequence 7 Steuersequenzen 20
Electrical sequence 7 Sequenz Elektrische Bestandteile 20
Components description 8 Komponentenbeschrieb 21
Service diagnosis 10 Fonktionsfehler 23
MAINTENANCE AND CLEANING INSTRUCTIONS 12 WARTUNG UND REINIGUNGSANLEITUNG 25
General 12 Woraussetzung 25
Icemaker 12 Reinigung des Eisbereiters 25
Clean - Replace of air condenser filter 12 Reinigung - Austausch des Luftkondensatorfilters 25
Cleaning instructions of water system 12 Wartungs und Reinigungsanleitungen 26
A

SD 22
26
24
22
20
18
16
14
Kg.
25 10 °C20 15
°C
10
20
30
35
SD 23
SD 30 SCN35
SCN45SC70
SC120SC210
Kg.
25 10 °C20 15
°C
10
20
30
35
26
24
22
20
18
16
14
26
24
22
20
18
16
14
Kg.
25 10 °C20 15
°C
10
20
30
35
Kg.
25 10 °C20 15
°C
10
20
30
35
28
26
24
22
20
18
16
34
32
30
28
26
24
22
20
Kg.
25 10 °C20 15
°C
10
20
30
35
Kg.
25 10 °C20 15
°C
10
20
30
35
32
30
28
26
24
22
20
Kg.
25 10 °C20 15
°C
10
20
30
35
Kg.
25 10 °C20 15
°C
10
20
30
35
25 10 °C20 15
°C
10
20
30
35
45
43
41
39
37
35
33
31
29
45
43
41
39
37
35
33
31
29
Kg.
25 10 °C20 15
°C
10
20
30
35
60
58
56
54
52
50
48
46
44
Kg.
60
58
56
54
52
50
48
46
44 25 10 °C20 15
Kg.
25 10 °C20 15
°C
10
20
30
35
80
78
76
74
72
70
68
66
64
62
60
58
Kg.
82
80
78
76
74
72
70
68
66
25 10 °C20 15
°C
10
20
30
35
Kg.
25 10 °C20 15
°C
10
20
30
35
210
200
190
180
170
160
150
140
130
120
Kg.
210
205
200
195
190
185
180
175
170
25 10 °C20 15
°C
10
20
30
35
Kg.
25 10 °C20 15
°C
10
20
30
35
150
145
140
135
130
125
120
115
110
105
100
95
Kg.
160
155
150
145
140
135
130
125
120
Ice making capacity - Eisproduktionskapazität
AIR COOLED MODELS - LUFTKÜHLUNG
WATER TEMPERATURE - WASSERTEMPERATUR
AMBIENT TEMPERATURE - RAUMTEMPERATUR
ICE PRODUCED PER 24 HRS. - EISWÜRFEL PRODUKTION IN 24 STD.
WATER COOLED MODELS - WASSERKÜHLUNG
WATER TEMPERATURE - WASSERTEMPERATUR
AMBIENT TEMPERATURE - RAUMTEMPERATUR
ICE PRODUCED PER 24 HRS. - EISWÜRFEL PRODUKTION IN 24 STD.
AIR COOLED MODELS - LUFTKÜHLUNG
WATER TEMPERATURE - WASSERTEMPERATUR
AMBIENT TEMPERATURE - RAUMTEMPERATUR
ICE PRODUCED PER 24 HRS. - EISWÜRFEL PRODUKTION IN 24 STD.
WATER COOLED MODELS - WASSERKÜHLUNG
WATER TEMPERATURE - WASSERTEMPERATUR
AMBIENT TEMPERATURE - RAUMTEMPERATUR
ICE PRODUCED PER 24 HRS. - EISWÜRFEL PRODUKTION IN 24 STD.
AIR COOLED MODELS - LUFTKÜHLUNG
WATER TEMPERATURE - WASSERTEMPERATUR
AMBIENT TEMPERATURE - RAUMTEMPERATUR
ICE PRODUCED PER 24 HRS. - EISWÜRFEL PRODUKTION IN 24 STD.
WATER COOLED MODELS - WASSERKÜHLUNG
WATER TEMPERATURE - WASSERTEMPERATUR
AMBIENT TEMPERATURE - RAUMTEMPERATUR
ICE PRODUCED PER 24 HRS. - EISWÜRFEL PRODUKTION IN 24 STD.
AIR COOLED MODELS - LUFTKÜHLUNG
WATER TEMPERATURE - WASSERTEMPERATUR
AMBIENT TEMPERATURE - RAUMTEMPERATUR
ICE PRODUCED PER 24 HRS. - EISWÜRFEL PRODUKTION IN 24 STD.
WATER COOLED MODELS - WASSERKÜHLUNG
WATER TEMPERATURE - WASSERTEMPERATUR
AMBIENT TEMPERATURE - RAUMTEMPERATUR
ICE PRODUCED PER 24 HRS. - EISWÜRFEL PRODUKTION IN 24 STD.
AIR COOLED MODELS - LUFTKÜHLUNG
WATER TEMPERATURE - WASSERTEMPERATUR
AMBIENT TEMPERATURE - RAUMTEMPERATUR
ICE PRODUCED PER 24 HRS. - EISWÜRFEL PRODUKTION IN 24 STD.
WATER COOLED MODELS - WASSERKÜHLUNG
WATER TEMPERATURE - WASSERTEMPERATUR
AMBIENT TEMPERATURE - RAUMTEMPERATUR
ICE PRODUCED PER 24 HRS. - EISWÜRFEL PRODUKTION IN 24 STD.
AIR COOLED MODELS - LUFTKÜHLUNG
WATER TEMPERATURE - WASSERTEMPERATUR
AMBIENT TEMPERATURE - RAUMTEMPERATUR
ICE PRODUCED PER 24 HRS. - EISWÜRFEL PRODUKTION IN 24 STD.
WATER COOLED MODELS - WASSERKÜHLUNG
WATER TEMPERATURE - WASSERTEMPERATUR
AMBIENT TEMPERATURE - RAUMTEMPERATUR
ICE PRODUCED PER 24 HRS. - EISWÜRFEL PRODUKTION IN 24 STD.
AIR COOLED MODELS - LUFTKÜHLUNG
WATER TEMPERATURE - WASSERTEMPERATUR
AMBIENT TEMPERATURE - RAUMTEMPERATUR
ICE PRODUCED PER 24 HRS. - EISWÜRFEL PRODUKTION IN 24 STD.
WATER COOLED MODELS - WASSERKÜHLUNG
WATER TEMPERATURE - WASSERTEMPERATUR
AMBIENT TEMPERATURE - RAUMTEMPERATUR
ICE PRODUCED PER 24 HRS. - EISWÜRFEL PRODUKTION IN 24 STD.
AIR COOLED MODELS - LUFTKÜHLUNG
WATER TEMPERATURE - WASSERTEMPERATUR
AMBIENT TEMPERATURE - RAUMTEMPERATUR
ICE PRODUCED PER 24 HRS. - EISWÜRFEL PRODUKTION IN 24 STD.
WATER COOLED MODELS - WASSERKÜHLUNG
WATER TEMPERATURE - WASSERTEMPERATUR
AMBIENT TEMPERATURE - RAUMTEMPERATUR
ICE PRODUCED PER 24 HRS. - EISWÜRFEL PRODUKTION IN 24 STD.
B

C
SDN 25 (mm) SDN 30 (mm) SDN 35 (mm) SCN 35 (mm) SCN 45 (mm)
A334 377 377 485 485
B454 552 552 572 572
C597 637 637 721 816
➊CORD SET - ELEK. KABEL
➋Ø 20 WATER OUTLET - WASSERABFLUSS
➌G3/4" WATER INLET - WASSEREINLAUF
SDN 25 - 30
SCN 35 - 45
123
1
2
3
BA
C
BA
C

D
SC70 (mm) SC120(mm) SC 210 (mm)
A 670 1045 1045
B 572 572 572
C 890 900 1050
➊CORD SET - ELEK. KABEL
➋Ø 20 WATER OUTLET - WASSERABFLUSS
➌G3/4" WATER INLET - WASSEREINLAUF
➍G3/4" WATER OUTLET - WASSERABFLUSS *
➎G3/4" WATER INLET - WASSEREINLAUF *
* Water cooled only - Nur wassergekuhlt
A
B
C
SC70
➀➁➂➃ ➄
A
B
C
SC120- 210
➀➁➂➃ ➄

ETECHNICAL SPECIFICATIONS - TECHNISCHE ANGABEN
SCN35SCN35W SCN45SCN45W SC70 SC70W SC120 SC120W SC210 SC210W
Electric voltage 230/50/1 230/50/1 230/50/1 230/50/1 230/50/1
Normale Netzspannung -10÷+10% -10÷+10% -10÷+10% -10÷+10% -10÷+10%
Condensation Aria Acqua Aria Acqua Aria Acqua Aria Acqua Aria Acqua
Kùhlung Air Eau Air Eau Air Eau Air Eau Air Eau
Bin Capacity (kg)
Speiker Kapazitat (kg) 17 20 30 50 80
Net weight (kg)
Netto Gewicht (kg) 45 48 61 94 131
Compressor power HP
Kompressorleistung PS 1/4 3/8 1/2 11.5
Running amps
Ampere 2.2 3.2 3.8 5,3 5,5
Start amps
Start ampere 11 17 20 29 32
Power (Watt)
Leistung (Watts) 380 530 650 1200 2000
Power cons .in 24 hrs (Kwh)
Stromverbrauch in 24 hrs (Kwh) 7.5 10.5 13 24 35
Wire size (mm')
Kabelanzahl (mm') 3 x1 3x1 3x1 3 x 1,5 3 x 1,5
Refrig. Charge R134A (gr)
Kuhlmittel full. R134A (gr) 280 240 300 270 450 300
Refrig. Charge R404A (gr)
Kuhlmittel full. R404A (gr) 630 500 660 500
Refrigerant metering device CapiIlary tube CapiIlary tube CapiIlary tube CapiIlary tube CapiIlary tube
Kaltemittel expansionssystem Kapillarroh
r
Kapillarrohr Kapillarrohr Kapillarrohr Kapillarrohr
Discharge pressure - Hochdruckbereich
SCN35SCN45SC 70 SC 120 SC 210
Air Cooled (21°C)
Luftgekuhlt (21°C) 8,5÷10 bar 8,5÷10 bar 8,5÷9,5 bar 15÷19,5 bar 16÷20 bar
Water Cooled
Wassergekuhlt 8,5÷10 bar 8,5÷10 bar 9,5 bar 17 bar 17 bar
Suction Pressure – Niederdruck
Start/End of freezing cycle – Beginn /Ende der Gefrierfase
SCN35SCN45SC 70 SC 120 SC 210
0,8÷0,1 bar 0,8÷0,1 bar 0,8÷0,1 bar 3,6÷1,5 bar 2,4÷1,3 bar
OPERATING PRESSURES - BETRIEBSDRUCKE

M
1. MASTER SWITCH - HAUPTSSCHALTER 9. OPERATING LIGHT -
2. CONDENSER THERMOSTAT - KONDENSATORTHERMOSTAT 10. TIMER MOTOR - TIMER MOTOR
3. BIN THERMOSTAT - SPEICHERTHERMOSTAT 11. HOT GAS VALVE - HEISSGASVENTIL
4. OUTER MICROSWITCH - AUSSERER MIKROSCHALTER 12. WATER INLET VALVE - WASSEREINLAUFVENTIL
5. EVAP. THERMOSTAT - VERDAMPFERTHERMOSTAT 13. WATER PUMP - WASSERPUMPE
6. INNER MICROSWITCH - INNERER MIKROSCHALTER 14. COMPRESSOR - KOMPRESSOR
7. COMPRESSOR SWITCH - KOMPRESSOR SCHALTER 15. FAN MOTOR - LUFTERMOTOR
8. PRESSURE CONTROL - PRESSOSTAT (SCN 35 ÷45W) (SC70 ÷210 A)
# SC70 - 120- 210 AIR COOLED ONLY
NUR SC70 - 120- 210 WASSERGEKÜHLTE VERSION
FiG. 1
FiG. 1
FiG. 3
FiG. 5 FiG. 6
FiG. 2
FiG. 4
1
FREEZING CYCLE
3
21 4
56 7
9 101112131415
2
NO NC
COM
3
2 4 NC NO
COM 2
1
31
12
45
8
1
FREEZING CYCLE - TIMING PHASE
3
21 4
56 7
9 101112131415
2
NO NC
COM
3
2 4 NC NO
COM 2
1
31
12
45
8
1
DEFROST CYCLE
3
21 4
56 7
9 101112131415
2
NO NC
COM
3
2 4 NC NO
COM 2
1
31
12
45
8
1
DEFROST CYCLE - BIN FULL
3
21 4
56 7
9 101112131415
2
NO NC
COM
3
2 4 NC NO
COM 2
1
31
12
45
8
1
FREEZING CYCLE - BIN FULL
3
21 4
56 7
9 101112131415
2
NO NC
COM
3
2 4 NC NO
COM 2
1
31
12
45
8
1
RINSING CYCLE
3
21 4
56 7
9 101112131415
2
NO NC
COM
3
2 4 NC NO
COM 2
1
31
12
45
8

GENERAL INFORMATION
AND INSTALLATION
A. INTRODUCTION
This manual provides the specifications and the
step-by-stepproceduresfortheinstallation,start-
up and operation, maintenance and cleaning for
the SIMAG SCN-SC Series Icemakers.
The SIMAG SCN-SC 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.
NOTE.Toretainthesafetyandperformance
built into this icemaker, it is important that
installation and maintenance be conducted
in the manner outlined in this manual.
B. UNPACKING AND INSPECTION
1. Call your authorized SIMAG Distributor or
Dealer for proper installation.
2. Visually inspect the exterior of the packing
and skid. Any severe damage noted should be
reportedtothedeliveringcarrierandaconcealed
damageclaimformfilledinsubjettoinspectionof
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. Removethefrontandtherearpanelsofthe
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
againstor touchother linesor surfaces,and that
the fan blades move freely.
7. Check that the compressor fits snugly onto
all its mounting pads.
8. See data plate on the rear side of the unit
and check that local main voltage corresponds
with the voltage specified on it.
CAUTION. Incorrect voltage supplied to
the icemaker will void your parts
replacement program.
9. 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 SIMAG factory.
C. LOCATION AND LEVELLING
WARNING.ThisIceMaker isdesignedfor
indoorinstallationonly.Extendedperiods
of operation at temperature exceeding
the following limitations will constitute
misuse under the terms of the SIMAG
Manufacturer’sLimitedWarrantyresulting
in LOSS of warranty coverage.
1. Position the machine bin in the selected
permanent location and tighten the four legs
(SCN 35 - 45 - SC70 - 120- 210).
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 40°C (100°F).
c) Well ventilated location for air cooled
models (clean the air cooled condenser at
frequent intervals).
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.
NOTE. With the unit in “built-in” conditions,
the ice production is gradually reduced in
respect to the levels shown in the graph, up
to a maximum of 10% at room temperatures
higher than 32
° C.
The daily ice-making capacity is directly
related to the condenser air inlet temperatu-
re,watertemperatureandageofthemachine.
TokeepyourSIMAGCUBERatpeakperfor-
mance levels, periodic maintenance checks
must be carried out as indicated on this
manual.
2. Level the Icemaker 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 SIMAG icemakers require a
solid earth wire.
All SIMAG 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.
Page 1

Make sure that the ice machine is connected to
its own circuit and individually fused (see data
plate for fuse size).
Themaximumallowablevoltagevariationshould
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.
E. WATER SUPPLY AND DRAIN
CONNECTIONS
GENERAL
When choosing the water supply for the cuber
consideration should be given to:
a) Length of run
b) Water clarity and purity
c) Adequate water supply pressure
Sincewateristhemostimportantsingleingredient
inproducingiceyoucannotemphasizetoomuch
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 cloudy colored ice cubes, plus scale
build-upontheinteriorpartsofthewatersystem.
WATER SUPPLY
Connect the 3/4" GAS male of the water inlet
fitting,usingthefoodgradeflexibletubingsupplied
with the machine, to 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.
WATERSUPPLY-WATERCOOLEDMODELS
(SC70-120-210)
ThewatercooledversionsofSIMAGIceMakers
requiretwoseparateinletwatersupplies,onefor
the water making the ice and the other for the
water cooled condenser.
Connect the 3/4" GAS male fitting of the water
inlet, using the flexible tubing supplied with the
unit, to the cold water supply line with regular
plumbing fitting and a shut-off valve installed in
anaccessiblepositionbetweenthewatersupply
line and the unit.
WATER DRAIN
Connect the drain fitting with a plastic tube 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).
On water cooled versions, the water drain line
from the condenser is internally connected with
the drain fitting of the unit.
It is strongly recommended therefore to install a
vertical open vent on unit drain line high point to
ensure good draining and to direct the drain line
to a trapped and vented floor drain receptacle.
NOTE.Thewatersupplyandthewaterdrain
must be installed to conform with the local
code. In some case a licensed plumber and/
or a plumbing permit is required.
Page 2

G. INSTALLATION PRACTICE
1. Hand shut-off valve
2. Water filter
3. Water supply line (flexible hose)
4. 3/4" GAS male fitting
5. Vented drain
6. Open trapped vented drain
7. Drain fitting
8. Main switch
9. Power line
7. Havetheboltsholdingthecompressordown
been checked to ensure that the compressor is
snugly fitted onto the mounting pads?
8. Check all refrigerant lines and conduit lines
to guard against vibrations and possible failure.
9. Have the bin liner and cabinet been wiped
clean?
10. Has the owner/user been given the User
Manualandbeeninstructedontheimportanceof
periodic maintenance checks?
11. HastheManufacturer’sregistrationcardbeen
filled in properly? Check for correct model and
serial number against the serial plate and mail
the registration card to the factory.
12. Hasthe owner beengiven thename andthe
phonenumber oftheauthorized SIMAGService
Agency serving him?
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)
4. Have all the electrical and plumbing
connectionsbeen made,andis thewatersupply
shut-off valve open?
5. Has the voltage been tested and checked
against the data plate rating?
6.
Has the water supply pressure been checked
to ensure a water pressure of at least 1 bar
(14 psi)? Open the shut-off valve and verify the
absence of water losses from the connections.
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 40°C
(100°F).
Page 3

OPERATING
INSTRUCTIONS
START UP
Afterhavingcorrectlyinstalledtheicemakerand
completed the plumbing and electrical
connections, perform the following “Start-up”
procedure.
A. Puttheicemakerinoperationbymovingthe
unit master switch, located on the cabinet front,
to the ON position.
NOTE. The icemaker control is factory set
with the timer microswitches actuators
dropped off into the initial point of the cam
slot. This setting position allows a proper
water filling.
The unit starts operating in the “defrost cycle”
with the following components being activated:
THE WATER INLET SOLENOID VALVE
THE HOT GAS SOLENOID VALVE
THE CONTACTOR COIL (SC70-120-210)
THE FAN MOTOR (only SCN 35) air cooled
THE COMPRESSOR
THE TIMER MOTOR
B. During the water filling operation, check to
see that the incoming water dribblers, through
the evaporator platen dribbler holes, down into
the sump reservoir to fill it up and also that the
incoming surplus of water flows out through the
overflow pipe into the drain line.
NOTE. If, in the defrost cycle length, the
machine sump reservoir does not get filled
with water up to the rim of the overflow pipe,
removethefrontpanelandrotatetheshaftof
thetimerso to causethe dropping of thetwo
microswitches actuators into the beginning
of the cam slot and check for:
1. The water pressure of the water supply
line, it must be at least 1 bar (14 psig)
Minimum (Max 5 bar-70 psig).
2. The filtering device installed in the water
line that may reduce the water pressure
below the Minimum value of 1 bar (14 psig).
3. Any clogging situation in the water circuit
like the inlet water strainer and/or the flow
control.
OPERATIONAL CHECKS
C. At completion of the water filling phase the
unit initiate automatically the first freezing cycle
with the start up of (Fig.1):
COMPRESSOR
CONTACTOR COIL (SC70-120-210)
WATER PUMP
FAN MOTOR (in air cooled version)
D. Check to see through the ice discharge
openingthatthespraysystemiscorrectlyseated
and that the water jets uniformely reach the
interior of the inverted mold cups or the exterior
of the evaporator tips; also make sure that the
plastic curtain is hanging freely and there is not
excessive water spilling through it.
E. Theicemakingprocesstakesplacethereby,
withthe watersprayed intothe moldsor ontothe
tips that gets gradually refrigerated by the heat
exchange with the refrigerant flowing into the
evaporator serpentine.
During the first portion of the freezing cycle, the
timer assy is standing-by with its microswitches
actuators resting on the raised cam profile
(positionthatcorrespondtotheendofthedefrost
cycle).
F. Then,asthecubesizecontrolcut-inpointis
reachedbytheevaporatortemperaturethecontrol
of the cycle is passed to the timer assy. Whose
raisedcamslowlyrotatestocontinuethefreezing
cycle (2nd phase) up to its completition.
The components in operation during this 2nd
phase of the cycle are (Fig.2):
COMPRESSOR
CONTACTOR COIL (SC70-120-210)
WATER PUMP
FAN MOTOR (in air cooled version)
TIMER MOTOR
G. After about 18÷20 minutes from the
beginning of the freezing cycle, in an hypothetic
ambient temperature of 21°C, the defrost cycle
takes place with the hot gas and the water inlet
valves being simoultaneously activated.
Theelectricalcomponentsinoperationare(Fig.3):
COMPRESSOR
CONTACTOR COIL (SC70-120-210)
WATER INLET SOLENOID VALVE
HOT GAS VALVE
TIMER MOTOR
FAN MOTOR (only SCN35) air cooled
H. Check, during the defrost cycle, that the
incoming water flows correctly into the sump
reservoir in order to refill it and that the surplus
overflows through the overflow drain tube.
I. Checkthetextureoficecubesjustreleased.
They have to be of the right size with a thickness
of about 7÷8 mm.
Ifthe icecubeshave notthecorrect size,wait for
a second harvest before attempting any
adjustment by setting the cube size control.
Page 4

By rotating the control setting screw clockwise
the ice cube thickness can be increased; on the
contrarythethicknesscanbereducedbyturning
the setting screw counterclockwise.
If the ice cubes are shallow and cloudy, it is
possible that the ice maker runs short of water
during the freezing cycle second phase or, the
quality of the supplied water requires the use of
an appropriate water filter or conditioner.
J. Withtheicemakerintheharvestcycle,hold
iceagainst thebin thermostatcontrolbulb totest
its shut off (Fig.4). This should cause the ice
maker to shut OFF after 30 seconds, 1 minute at
themost,namelywhenthecontrolbulbtempera-
ture drops to reach +1°C.
NOTE. In case this test is performed during
thefreezingcycle,theunitwillshutOFFonly
at the end of the freeezing cycle and exactly
whenthetimerswitchactuatorsdrop-offinto
the cam slot (Fig.5).
Within minutes after the ice is removed from the
sensingbulb,thebulbwillwarmuptoreach+4°C
and consequently will cause the icemaker to
restart from the harvest (defrost) cycle.
K. Instruct the owner/user on the general
operation of the ice machine and about the
cleaning and care it requires.
Page 5

PRINCIPLE OF OPERATION
IntheSIMAGcubeicemakers the waterusedto
make the ice is kept constantly in circulation by
an electric water pump which primes it to the
spray system nozzles from where it is diverted
into the molds of the evaporator.
Asmallquantityofthesprayedwaterfreezesinto
ice; the rest of it cascades by gravity into the
sump assembly below for recirculation.
FREEZING CYCLE
The hot gas refrigerant discharged out from the
compressorreachesthecondenserwhere,being
cooleddown,condensesintoliquid.Flowinginto
the liquid line it passes through the drier filter,
thenitgoesallthewaythroughthecapillarytube
where, due to the heat exchanging action, it
loosessomeofitsheatcontentsothatitspressure
and temperature are lowered as well.
Next the refrigerant enters into the evaporator
serpentine (which has a larger I.D. then the
capillary) and starts to boil off; this reaction is
emphasized by the heat transferred by the
sprayed water.
The refrigerant then increases in volume and
changes entirely into vapor.
The vapor refrigerant then passes through the
suction accumulator (used to prevent that any
small amount of liquid refrigerant may reach the
compressor)andthroughthesuctionline.Inboth
theaccumulatorandthesuctionlineitexchanges
heatwiththe refrigerantflowingintothe capillary
tube (warmer), before to be sucked in the
compressor and to be recirculated as hot
compressed refrigerant gas.
Thefreezingcycleiscontrolledbytheevaporator
thermostat(whichhasits bulbin contactwith the
evaporatorserpentine)thatdeterminesthelength
of its first portion of the cycle.
When the temperature of the evaporator
thermostat bulb drops to a pre-set value, the
evaporatorthermostatchangesitscontacts(from
3-4 to 3-2) suppling power to the finishing timer
thattakesthecontrolofthesecondtimedportion
of the freezing cycle up to its completion.
The length of this second timed portion of the
freezing cycle is pre-fixed and related to the
setting of the upper part of the timer cam.
The electrical components in operation during
the freezing cycle are:
COMPRESSOR
CONTACTOR COIL (SC70-120-210)
FAN MOTOR (in air cooled version)
WATER PUMP
and during the second phase of freezing cycle
(Time mode) they are joined by the
TIMER
On the SCN 45, SC70, SC120and SC210 air
cooledtherefrigerantheadpressure,inthecourse
of the freezing cycle, ranges between 8÷10 bars
SCN 45, 8÷9,5 bars SC70 and 15,5÷20 bars
SC120-210 being controlled by the hi-pressure
control.
When the discharge pressure rises up to a pre
setvalue,thepressurecontrolclosesitselectrical
contacts suppling power to the FAN MOTOR.
As soon as the discharged refrigerant pressure
drops, the pressure control opens its contacts to
temporarelyde-energizethefanmotor.Onothers
air cooled models (SCN 35) the fan motor is
constantlyactivatedandretaintheheadpressure
between 8÷10 bars (110÷140 psig).
On the models from SCN 35÷45 water cooled
version the same hi-pressure control is used to
intermittently energize a water solenoid valve
locatedonthewatersupplylinetothecondenser.
On the other models SC70-120-210, in water
cooled version, the discharge pressure is kept
constantbythewaterregulatingvalvethatmeters
the water flow to the condenser.
NOTE.Incaseofshortage/insufficientcooling
waterorair condenserdirty, the operationof
thesafetydevicebyhandresetwillstopthe
machine as soon as the temperature reach
70/75
° C (160/170 ° F) or the corresponding
pressure. After eliminated the cause of the
stop, put the machine in operation by
pushing the reset button of the safety
thermostat or pressure switch across the
holesinthedown/rightsideofthefrontpanel
or removing it.
At the start of the freezing cycle the refrigerant
suctionorlo-pressure lowers rapidlyto0,8 bars
(11 psig) SCN 35÷SC70, 3,6 bars (50 psig) SC
120and 2,4 bars (34 psig) SC210 then it
declinesgradually-inrelationwiththegrowingof
the ice thickness - to reach, at the end of the
cycle,approx.0,1bars(1,4psig)SCN35÷SC70,
1,5 bars (21 psig) SD 125, and 1,3 bars (18
psig) SC210 with the cubes fully formed in the
cup molds.
Thetotallengthofthefreezingcyclerangesfrom
18 to 20 minutes.
DEFROST OR HARVEST CYCLE
As the electric timer has carried the system
throughout the second phase of freezing cycle,
the defrost cycle starts.
NOTE.The lengthofthe defrostcycleispre-
determinedbythesettingofthelowerportion
of the timer cam.
In case it is possible to modify the defrost
cycle length through its setting screw.
ATTENTION. The defrost period is the
most critical for the icemaker main
components expecially the compressor.
To avoid to abuse of them it is strongly
recommended to limit the harvest cycle
extension to 4 minutes at the most.
The electrical components in operation during
this phase are:
COMPRESSOR
Page 6

CONTACTOR COIL (SC70-120-210)
FAN MOTOR (only SCN 35) air cooled
WATER INLET SOLENOID VALVE
HOT GAS SOLENOID VALVE
TIMER MOTOR
The incoming water, passing through the water
inlet valve and in its incorporated flow control
(outlet),runsovertheevaporatorplatenandthen
flows by gravity through the dribbler holes down
into the sump/reservoir.
Thewaterfillingthesump/reservoirforcespartof
theleft-overwaterfromthepreviousbatchtorun
out to the waste through the overflow pipe. This
overflow limits the level of the sump water which
will be used to produce the next batch of ice
cubes.
Meanwhile,therefrigerantashotgas,discharged
from the compressor, flows through the hot gas
valve directly into the evaporator serpentine by-
passing the condenser.
The hot gas circulating into the serpentine of the
evaporator warms up the copper molds or the
tips causing the defrost of the ice cubes. The ice
cubes, released from the molds, drop by gravity
ontoaslantedgridchute,thenthroughacurtained
opening they fall into the storage bin.
At the end of the defrost cycle, both the hot gas
andthewaterinletvalvescloseandthemachine
starts again a new freezing cycle.
OPERATION - CONTROL SEQUENCE
At the start of freezing cycle, the evaporator
thermostat controlsthe lengthof the first part of
the freezing cycle. As its bulb senses a
predeterminedtemperature,itclosesitscontacts
tosupplypowertothetimermotorwhich,inturn,
takes over the control of the freezing cycle.
Thissecondpartofthecyclehasapre-fixedtime
durationwhichisreliedtothesettingextensionof
the cam high profile.
NOTE. The evaporator thermostat is factory
set to the number 4 of its setting dial.
In case it is required the setting of the
evaporatorthermostatcanbemadebyturning
its adjusting screw located on front side.
Withaclockwiserotationofthesettingscrew
the thermostat cut IN temperature will be
lowered (longer freezing cycle - thicker ice
cube)while,withacounterclockwiserotation
of the screw, the Cut IN temperature rises
(shorter freezing cycle - thiner ice cube).
Once completed the freezing cycle 2nd phase
thesystemswitchesautomaticallyintothedefrost
cycle which has a pre-fixed length as well.
Atcompletionofthedefrost periodthe unitstarts
again a new freezing cycle.
OPERATION - ELECTRICAL SEQUENCE
The following charts illustrate which switches
and which components are ON or OFF during a
particular phase of the icemaking cycle.
Refer to the wiring diagram for a reference.
NOTE.Thewiringdiagramshows theunitas
itisintheEvaporatorThermostatmodeofthe
Freezing Cycle.
BEGINNING FREEZE
Electrical components (Loads)....... ON OFF
Compressor........................................ •
Fan motor........................................... •
Hot gas valve ..................................... •
Water inlet valve................................. •
Water pump........................................ •
Contactor coil ..................................... •
Timer motor........................................ •
Electric Controls .............................. ON OFF
Conctats 3-4 evaporator thermostat .. •
Conctats 3-2 evaporator thermostat .. •
Bin thermostat .................................... •
Conctats COM-NO timer microswitch •
Conctats COM-NC timer microswitch •
Pressure control (SCN35÷45W) (SCN45÷SC210A) •
TIMED FREEZE
Electrical components (Loads)....... ON OFF
Compressor........................................ •
Fan motor........................................... ••
Hot gas valve ..................................... •
Water inlet valve................................. •
Water pump........................................ •
Contactor coil ..................................... •
Timer motor........................................ •
Electric Controls .............................. ON OFF
Conctats 3-4 evaporator thermostat .. •
Conctats 3-2 evaporator thermostat .. •
Bin thermostat .................................... •
Conctats COM-NO timer microswitch •
Conctats COM-NC timer microswitch •
Pressure control (SCN35÷45W) (SCN45÷SC210A) ••
I°PORTION HARVEST CYCLE
Electrical components (Loads)....... ON OFF
Compressor........................................ •
Fan motor (SCN 35 ON) .............. •
Hot gas valve ..................................... •
Water inlet valve................................. •
Water pump........................................ •
Contactor coil ..................................... •
Timer motor........................................ •
Electric Controls .............................. ON OFF
Conctats 3-4 evaporator thermostat .. •
Conctats 3-2 evaporator thermostat .. •
Bin thermostat .................................... •
Conctats COM-NO timer microswitch •
Conctats COM-NC timer microswitch •
Pressure control (SCN35÷45W) (SCN45÷SC210A) •
Page 7

II°PORTION HARVEST CYCLE
Electrical components (Loads)....... ON OFF
Compressor........................................ •
Fan motor (SCN35 ON) ............... •
Hot gas valve ..................................... •
Water inlet valve................................. •
Water pump........................................ •
Contactor coil ..................................... •
Timer motor........................................ •
Electric Controls .............................. ON OFF
Conctats 3-4 evaporator thermostat .. •
Conctats 3-2 evaporator thermostat .. •
Bin thermostat .................................... •
Conctats COM-NO timer microswitch •
Conctats COM-NC timer microswitch •
Pressure control (SCN35÷45W) (SCN45÷SC210A) •
OPERATING CHARACTERISTICS
On air cooled models during the freezing cycle
the discharge pressure is kept between 8÷10
bars(110÷140psig)SCN35÷SC70,15,5÷20bars
(215÷280 psig) SC120-210.
At the same time the suction pressure will
gradually decline, reaching its lowest point just
before harvest. Compressor amps experience a
similar drop.
COMPONENTS DESCRIPTION
A. MASTER SWITCH
Fitted on the front side of the unit cabinet the
master switch has to be used to start-up and to
stop the ice maker operation.
In connection with it there is the green monitor
light.
B. EVAPORATOR THERMOSTAT
The evaporator thermostat with its sensing bulb
intimately in contact with the refrigerant outlet
tubefromtheevaporator,sensestheevaporating
refrigerant temperature (which declines in the
course of the freezing cycle) and when this one
reachesthepre-setvalue,itswitchesitscontacts
from3-4to3-2toactivatethefinishingcycle(2nd
phase)whichhasapre-setextensiondetermined
by the large diameter lobe of the timer cam.
C. BIN THERMOSTAT
The bin thermostat, which has its sensing bulb
downward into the storage bin, shuts-OFF
automaticallytheicemakerwhentheicestorage
bin is filled and ice contacts its bulb. Being it
connected in series with the front microswitch of
the timer, it causes the unit shut-off only at the
endofthefreezingcycle,whentheicecubesare
completed.
After ice is removed from the bin and its bulb
warm-up it allows the unit to restart from the
beginning of the harvest cycle which, in the
circumstance, is more likely a water filling cycle.
D. TIMER
Equippedwithtwomicroswitcheswhichplungers
rideonetimercam,thetimerislocatedinsidethe
control box.
The function of the timer begins when activated
by the cube size control (evap. thermostat).
The large diameter lobe of its cam determines
the 2nd freezing cycle portion length, while the
cam small diameter lobe, determines the time
cycle for the harvest sequence.
Thetimercamcanbeadjustedtovarythedefrost
time as required.
WARNING. Never set the defrost time for
longer than 4 minutes as this will
jeopardize the compressor motor
windings.
It goes without saying that an extension of the
defrostperiodwilldirectlyreducethetimedportion
of the freezing cycle and viceversa.
Consequently any variation made at the timer
camsettingrequiresacompensationadjustment,
very fine and very accurate, of the evaporator
thermostat.
E. COMPRESSOR SWITCH
Thecompressor switchislocatedon theedgeof
the control box and it can be switched in two
different positions which are:
Operation Supply power directly to the
compressor motor or, on models
SC70,SC120andSC210,directly
to the contactor coil.
Cleaning Shuts-off the compressor so that
only the water pump and the water
inlet valve will remain in operation.
When positioned on “0 - OFF” the water pump
primes the cleaning or the bactericide solution
allover the unit water system to generate a good
cleaning and sanitizing action of the ice maker.
NOTE.Itisrecommendedtoavoidtherinsing,
after the sanitation of the unit water system,
asanybactericidecoating,whichisbeneficial
to limit the bacteria growth, left-over in the
system may be removed.
F. HI PRESSURE CONTROL
Usedeitheronair(SCN45-SC70-120-210A)and
water (SCN35÷45W) cooled ice makers it
functions to maintain the head pressure within
the preset values of 8÷10 bars (110÷140 psig)
SCN35÷SC70,and15,5÷20bars(215÷280psig)
SC120-210, by intermittently activating the fan
motor (in the air cooled models) and the water
inlet valve to the condenser (in the water cooled
models SCN35-45).
Page 8

L. FAN MOTOR (Air cooled version)
The fan motor, in the SCN45-SC-70-120-210
modelsiselectricallyconnectedinserieswiththe
pressure control operates during the freezing
cycle to draw cooling air through the condenser
finssotokeepthecondensingpressurebetween
the two preset values 8÷10 bars (110÷140 psig)
SC70and15,5÷20bars(215÷280psig)SC120-
210.
In the other models SCN 35-45 the fan
motor works continuosly in order to maintain the
condensing pressure between 8÷10 bars
(110÷140 psig).
M. WATER INLET SOLENOID VALVE -
3/4 MALE FITTING
(SCN 35 ÷45 water cooled version)
A second water inlet solenoid valve, operating
throughanautomatichi-pressurecontrol,isused
on water cooled versions to supply water to the
condenser.
When activated it supplies a metered amount of
watertothecondenser inorder tolimit itstempe-
ratureandtherefrigerantoperatinghighpressure.
N. WATER REGULATING VALVE
(Water cooled version SC70 ÷210)
This valve controls the head pressure in the
refrigerantsystembyregulatingtheflowofwater
going to the condenser.
As pressure increases, the water regulating val-
ve opens to increase the flow of cooling water.
O. 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.Itcompressesthelowpressurerefrigerant
vaporcausingitstemperaturetoriseandbecome
high pressure hot vapor which is then released
through the discharge valve.
P. CONTACTOR (SC70-120-210 only)
Placed inside the control box it operates in order
to close or open the electrical circuit to the
compressor.
G. SAFETYTHERMOSTAT/PRESSURESWITCH
(BY HAND RESET)
Fastened directly onto the refrigerant liquid line
and electrically connected upstream all other
controls,thissafetydeviceshut-offtheicemakers
when senses that the temperature at the liquid
line has rised to the limit of 75°C (170°F) or
corresponding pressure.
H. WATER SPRAY SYSTEM
It consists of one spray bar with several spray
nozzles on its extension.
Thewaterpumped,issprayedthroughitsnozzles
in each individual mold or onto each evaporator
tip to be frozen into ice.
I. WATER PUMP
Thewaterpumpoperatescontinuallythroughout
the freezing cycle.
Thepumpprimesthewaterfromthe sumptothe
spray system and through the spray nozzles
sprays it to the copper molds or onto the
evaporator tips to be frozen into crystal clear ice
cubes. It is recommended that the pump motor
bearings be checked at least every six months.
J. WATER INLET SOLENOID VALVE -
3/4 MALE FITTING
Thewater inletsolenoidvalveis activatedbythe
timer microswitch only during the defrost cycle.
When energized it allows a metered amount of
incomingwatertoflowovertheevaporatorcavity
to assist the hot gas in defrosting the ice cubes.
The water running over the evaporator cavity
dropsbygravity,throughthedribblerholesofthe
platen, into the sump reservoir where it will be
sucked by the water pump and primed to the
spray system.
K. HOT GAS SOLENOID VALVE
The hot gas solenoid valve consists basically in
two parts: the valve body and the valve coil.
Locatedonthehotgasline,thisvalveisenergized
through the timer microswitch conctats
COM-NC during the defrost cycle.
During the defrost cycle the hot gas valve coil is
activated so to attract the hot gas valve piston in
order to give way to the hot gas discharged from
compressor to flow directly into the evaporator
serpentine to defrost the formed ice cubes.
Page 9

SERVICE DIAGNOSIS
SYMPTOM POSSIBLE CAUSE SUGGESTED CORRECTION
Unit will not run Main switch in OFF position Turn switch to ON position
Safety device intervention Eliminate the stop motivation and
(thermostat - pressure switch) push the reset button or replace.
Loose electrical connections Check wiring
Inoperative bin thermostat Replace thermostat
Compressor cycles Low voltage Check circuit for overloading
intermittently Check voltage at the supply to
the building. If low, contact the
power company
Contactor with burnt contacts Clean or replace
Non-condensable gas in system Purge the system
Compressor starting device Check for loose wires in starting
with loose wires device
To high room temperature Move the unit in a more
suitable place
Cubes too small Freezing cycle too short Review setting of DIP SWITCH
keys
Capillary tube partially restricted Blow charge, add new
gas & drier, after evacuating
system with vacuum pump
Moisture in the system Same as above
Shortage of water
See remedies for shortage of water
Shortage of refrigerant Check for leaks & recharge
Inoperative evaporator thermostst Replace thermostst
Cloudy cubes Shortage of water
See remedies for shortage of water
Dirty water supply Use water softner or water filter
Accumulated impurities cleaner Use SCOTSMAN Ice Machine
Water pump loosing disch. pressure Check bearings. Replace.
Shortage of water
Water spilling out through curtain Check or replace curtain
Water solenoid valve not opening Replace valve
Water leak in sump area Locate and repair
Water flow control plugged Remove and clean
Page 10

Irregular cubes Some jets plugged Remove jet cover and clean
size & some cloudy Shortage of water See shortage of water
Unit not level Level as required
Cubes too large Freezing cycle too long Adjust evap. thermostat
Inoperative evaporator thermostat Replace thermostat
Decreased ice capacity Inefficient compressor Replace
Leaky water valve Repair or replace
Non-condensable gas in system Purge the system
Poor air circulation or excessive Relocate the unit or provide for
hot location more ventilation
(Red-alarm LED glows)
Overcharge of refrigerant Correct the charge. Purge off slowly
Capillary tube partially restricted Blow charge, add new gas & drier,
after evacuating system with
vacuu pump
Hot gas solenoid valve leaking Replace valve
Undercharge of refrigerant Charge to data plate indication
Discharge head pressure too high See incorrect discharge pressure
Poor harvest Restriction in incoming water line Check water valve strainer and flow
control. If necessary enlarge the
flow control orifice
Water inlet valve not opening Valve coil with open winding
Replace valve
Hot gas valve orifice restricted Replace hot gas valve assy
Discharge head pressure too low See incorrect discharge pressure
Incorrect discharge pressure Inoperative fan pressure control Replace pressostat
Inoperative fan motor Replace
Water regulating valve misadjusted Adjust its setting stem
Excessive water in unit base Water tubing leaking Check. Tighten or replace
SERVICE DIAGNOSIS
SYMPTOM POSSIBLE CAUSE SUGGESTED CORRECTION
Page 11

MAINTENANCE AND
CLEANING INSTRUCTIONS
A. GENERAL
Theperiodsandtheproceduresformaintenance
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
Thefollowingmaintenanceshouldbescheduled
at least two times per year on these icemakers,
by using the SIMAG technical service.
1. Check and clean the water line strainer.
2. Check that the icemaker is levelled in side
to side and in front to rear directions.
3. Clean the water system, evaporator, bin
and spray jets using a solution of Ice Machine
Cleaner.
Refer to procedure C cleaning instructions and
after cleaning will indicate frequency and proce-
dure to be followed in local areas.
NOTE.Cleaningrequirementsvaryaccording
to the local water conditions and individual
useroperation.Continuouscheckoftheclarity
of ice cubes and visual inspection of the
watersprayingpartsbeforeandaftercleaning
will indicate frequency and procedure to be
followed in local areas.
4. WiththeicemachineandfanmotorOFFon
aircooledmodels,cleancondenserusingvacuum
cleaner,whiskbroomornonmetallicbrushtaking
care to do not damage both the condenser and
ambient temperature sensors.
5. Checkforwaterleaksandtightendrain line
connections.Pourwaterdownbindrainlinetobe
sure that drain line is open and clear.
6. Check size, condition and texture of ice
cubes. Perform adjustment of the evaporator
thermostat or cube size control by turning its
adjusting screw clockwise for a thicker ice cube
and counterclockwise for a thiner one.
7. Check the bin thermostat to test shut-off.
Putahandfulloficecubesincontactwithitsbulb.
Thisshouldcausetheicemakertoshutoffwithin
20÷30", but only at the end of the freezing cycle!
NOTE. Perform the above check only at the
beginning of the harvest cycle as, during the
freezing cycle the bin thermostat contacts
are bypassed by the front microswitch of the
timer.
Page 12
When remove the ice cubes from its sensing
bulb the unit will restart after few seconds from
the defrost cycle assuring the filling up of the
water tank.
NOTE. It is possible to adjust the setting
temperatureof thebin thermostatby slightly
turning its adjusting screw.
8. Check for refrigerant leaks.
C. CLEAN - REPLACE OF AIR
CONDENSER FILTER
1. Withdraw the air filter from the front through
the opening of the front panel.
2. Blowpressurisedairontheoppositedirection
of the condenser air flow so to remove the
dust accumulated.
3. If pressurised air is not available, use tap
wateralwaysinthecounterflowairdiretcion.
Once cleaned shake it so to remove most of
the accumulated water, then dry it using an
hair dryer.
NOTE. In case the air filter strainer is
damaged replace it with a new one.
4. Install it again by pushing it through the front
panel opening.
D. CLEANING INSTRUCTIONS OF WATER
SYSTEM
1. Removethefrontandthetoppanelstogain
access either to the control box and to the
evaporator.

8. Let the unit to remain in the CLEANING
mode for about 20 minutes then switch OFF the
machine.
9. Flush out the cleaning solution from the
sump reservoir then pour onto the evaporator
cavityoneortwolitersofcleanpotablewaterwith
the antibacteria solution P/N 26400002 to rinse
and sanitize the molds and the spray system.
Ifnecessaryremovethesparybarandnozzlesto
clean them separately then refit them.
10. Set back the master switch to ON. The
water pump is again in operation to circulate the
water and the antibacterial solution in order to
rinse the entire water system.
SwitchOFFtheunitafterapprox.10minutesand
flushouttherinsingwaterfromthesumpreservoir.
11. To rotatethetimersothatthemicroswitches
reachthebeginningofthedefrostcycle(lowpart
of the cam) give power to the unit by the master
switch.
By doing so are energized the water pump and
the water inlet valve. In this way the incaming
water flow away to fill up the water tank.
12. When the water tank is filled up (water
flowing out from the drain) put the compressor
switch on I ON position to restart the machine in
the automatic mode.
13. Re-fit the evaporator cover and the unit
service panels.
14. At completion of the freezing and harvest
cyclemake sureof propertexture andclearness
of the ice cubes and that, they do not have any
acid taste.
ATTENTION. In case the ice cubes are
cloudy,whiteandhaveanacidtaste,melt
them immediately by pouring on them
some warm water.
This to prevent somebody from using
them.
15. Wipe clean and rinse the inner surfaces of
the storage bin.
REMEMBER. To prevent the accumulation
of undesirable bacteria it is necessary to
sanitizetheinteriorofthestoragebinwith
an anti-algae disinfectant solution every
week.
Page 13
2. Wait till the end of defrost cycle then, shut
the unit OFF by means of its master switch.
3. Scoop out all the ice cubes stored into the
bin in order to prevent them from being
contaminated with the cleaning solution then
flush out the water from the sump reservoir by
removing the overflow stand-pipe.
4. Remove the plastic cup located on the
bottomofsump/freezingchamber todrain outall
water and scale deposits.
5. Prepare the cleaning solution by diluting in
a plastic container two or three liters of warm
water (45°÷50°C) with a 0,2÷0,3 liters of Ice
Machine Cleaner PIN 00100901.
WARNING. The Ice Machine Cleaner
contains Phosphoric and Hydroxyacetic
acids. These compounds are corrosive
and may cause burns if swallowed, DO
NOTinducevomiting.Givelargeamounts
of water or milk. Call Physician
immediately. In case of external contact
flush with water. KEEP OUT OF THE
REACH OF CHILDREN
6. Remove the evaporator cover then slowly
pour onto the evaporator platen the cleaning
solution. With the help of a brush dissolve the
most resistant and remote scale deposits in the
platen.
7. Set the compressor switch on "0 - OFF"
positionand givepower tothe unitby themaster
switch (Fig.6).
NOTE.WiththesysteminCLEANINGmode
the water pump is the only component in
operationtocirculatethecleaningsolutionin
the entire water system.