Scotsman AC-EC 57 User manual

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Page 1
Scotsman Ice Srl
Via Lainate, 31 - 20010 Pogliano M.se - Milano - Italy
Tel. [phone] (Aut. Sel.)- Telefax [phone]
Direct Line to Service & Parts:
Phone [phone] - Fax [phone]
Website: www.scotsman-ice.it
E-Mail: [email protected]
ISO 9001 - Cert. n. 0080
AC-EC 47
AC-EC 57
AC-EC 87
AC-EC 107
AC-EC 127
AC-EC 177
R 290 version
Electronic cubers with storage
PC Board version
REV. 10/2018
SERVICE MANUAL

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Page 2
INDICE 2
3
6
9
12
15
17
19
19
19
19
20
20
21
Table of contents page
Specifications AC-EC 47
Specifications AC-EC 57
Specifications AC-EC 87
Specifications AC-EC 107
Specifications AC-EC 127
Specifications AC-EC 177
GENERAL INFORMATION AND INSTALLATION
Introduction
Unpacking and Inspection
Location and levelling
Electrical connections
Water supply and drain connections
Final check list
Installation practice
OPERATING INSTRUCTIONS
Start up
Operational checks
OPERATING PRINCIPLES (How it works)
Freezing cycle
Harvest cycle
Electrical sequence
Components description
ADJUSTMENT, REMOVAL AND REPLACEMENT PROCEDURES
Adjustment of the cube size
Wiring diagram AC-EC 47-57-87-107-177
Service diagnosis
MAINTENANCE AND CLEANING INSTRUCTIONS
General
Icemaker
Clean - Replace of air condenser filter
Cleaning instructions of water system
39
40
42
22
23
28
30
31
34
45
45
45
46

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Important operating requirements:
Air temperature
Water temperature
Water pressure
Electr. voltage variations
from voltage rating
specified
on nameplate
MIN.
10°C
5°C
1 bar
-10%
°C
°F
SPECIFICATIONS
CUBER MODEL AC-EC 47
NOTE .Withtheunitin"built-in"conditions,theiceproductionisgraduallyreducedinrespecttothe
levels shown in the graf, 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 temperature, water
temperature conditions of the condenser air filter and age of the machine.
TokeepyourSCOTSMANCUBERatpeakperformancelevels,periodicmaintenancechecksmust
be carried out as indicated on Maintenance and Cleaning section of this manual.
MAX.
40°C
35°C
5 bar
+10%
ice making capacity
25
24.5
24
23.5
23
22.5
22
21.5
21
20.5
20
19.5
19
18.5
18
17.5
17
16.5
16
15.5
15
14.5
Kg.
32 27 21 15 10
AIR COOLED MODELS
WATER TEMPERATURE
AMBIENT TEMPERATURE
ICE PRODUCED PER 24 HRS.
10
21
32
38
°C
o
°C
o

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Page 4
AC 47 AS 6 Air
AC 47 WS 6 Water Stainless steel 1/4 9 Kg.
Start . Electric power cons.
Amps Kwh per 24 Hr
Model Cond. unit Finish Comp. HP
SPECIFICATIONS
Basic electr. Amps Watts Nr. of wires Amps fuse
230/50/1 2.1 12 400 3 x 1.5 mm210
8
NYA
AC 47 - CUBER
machine specifications
Cubes per harvest: 18 medium
* At 32/21 °C amb.-water
96**
NYA
Bin Water req.
Capacity lt/24 HR

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Page 5
Stainless steel 1/4 9 Kg.
Start . Electric power cons.
Amps Kwh per 24 Hr
Model Cond. unit Finish Comp. HP
SPECIFICATIONS
Basic electr. Amps Watts Nr. of wires Amps fuse
230/50/1 2.1 12 400 3 x 1.5 mm210
8
NYA
Cubes per harvest: 18 medium
* At 32/21 °C amb.-water
96**
NYA
Bin Water req.
Capacity lt/24 HR
EC 47 AS 6 Air
EC 47 WS 6 Water
EC 47 - CUBER
machine specifications
643

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Page 6
MIN.
10°C
5°C
1 bar
-10%
Important operating requirements:
Air temperature
Water temperature
Water pressure
Electr. voltage variations
from voltage rating
specified
on nameplate
SPECIFICATIONS
CUBER MODEL AC-EC 57
MAX.
40°C
35°C
5 bar
+10%
ice making capacity
NOTE .Withtheunitin"built-in"conditions,theiceproductionisgraduallyreducedinrespecttothe
levels shown in the graf, 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 temperature, water
temperature conditions of the condenser air filter and age of the machine.
TokeepyourSCOTSMANCUBERatpeakperformancelevels,periodicmaintenancechecksmust
be carried out as indicated on Maintenance and Cleaning section of this manual.
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
Kg.
32 27 21 15 10
AIR COOLED MODELS
WATER TEMPERATURE
AMBIENT TEMPERATURE
ICE PRODUCED PER 24 HRS.
10
21
32
38
°C
o
°C
o

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Page 7
AC 57 AS 6 Air
AC 57 WS 6 Water Stainless steel 1/4 12.5 Kg.
Start . Electric power cons.
Amps Kwh per 24 Hr
Model Cond. unit Finish Comp. HP
SPECIFICATIONS
Basic electr. Amps Watts Nr. of wires Amps fuse
230/50/1 2.1 12 400 3 x 1.5 mm210
096* **
NYA
AC 57 - CUBER
machine specifications
Cubes per harvest: 24 medium
* At 32/21 °C amb.-water
7.6
NYA
Bin Water req.
Capacity lt/24 HR

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Page 8
Stainless steel 1/4 12.5 Kg.
Start . Electric power cons.
Amps Kwh per 24 Hr
Model Cond. unit Finish Comp. HP
SPECIFICATIONS
Basic electr. Amps Watts Nr. of wires Amps fuse
230/50/1 2.1 12 400 3 x 1.5 mm210
096* **
NYA
EC 57 - CUBER
machine specifications
Cubes per harvest: 24 medium
* At 32/21 °C amb.-water
7.6
NYA
Bin Water req.
Capacity lt/24 HR
EC 57 AS 6 Air
EC 57 WS 6 Water

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MIN.
10°C
5°C
1 bar
-10%
Important operating requirements:
Air temperature
Water temperature
Water pressure
Electr. voltage variations
from voltage rating
specified
on nameplate
SPECIFICATIONS
CUBER MODEL AC-EC 87
MAX.
40°C
35°C
5 bar
+10%
ice making capacity
NOTE .Withtheunitin"built-in"conditions,theiceproductionisgraduallyreducedinrespecttothe
levels shown in the graf, 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 temperature, water
temperature conditions of the condenser air filter and age of the machine.
TokeepyourSCOTSMANCUBERatpeakperformancelevels,periodicmaintenancechecksmust
be carried out as indicated on Maintenance and Cleaning section of this manual.
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
Kg.
32 27 21 15 10
AIR COOLED MODELS
WATER TEMPERATURE
AMBIENT TEMPERATURE
ICE PRODUCED PER 24 HRS.
10
21
32
38
°C
o
°C
o

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AC 87 AS 6 Air
AC 87 WS 6 Water Stainless steel 1/3 19 Kg.
Start . Electric power cons.
Amps Kwh per 24 Hr
Model Cond. unit Finish Comp. HP
SPECIFICATIONS
Basic electr. Amps Watts Nr. of wires Amps fuse
230/50/1 3.2 20 570 3 x 1.5 mm210
0143*
*NYA
AC 87 - CUBER
machine specifications
Cubes per harvest: 24 medium
* At 32/21 °C amb.-water
10.8
NYA
Bin Water req.
Capacity lt/24 HR

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Page 11
EC 87 AS 6 Air
EC 87 WS 6 Water Stainless steel 1/3 19 Kg.
Start . Electric power cons.
Amps Kwh per 24 Hr
Model Cond. unit Finish Comp. HP
SPECIFICATIONS
Basic electr. Amps Watts Nr. of wires Amps fuse
230/50/1 3.2 20 570 3 x 1.5 mm210
0143*
*NYA
EC 87 - CUBER
machine specifications
Cubes per harvest: 24 medium
* At 32/21 °C amb.-water
10.8
NYA
Bin Water req.
Capacity lt/24 HR

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Page 12
MIN.
10°C
5°C
1 bar
-10%
Important operating requirements:
Air temperature
Water temperature
Water pressure
Electr. voltage variations
from voltage rating
specified
on nameplate
SPECIFICATIONS
ELECTRONIC CUBER MODEL AC-EC 107
MAX.
40°C
35°C
5 bar
+10%
ice making capacity
NOTE .Withtheunitin"built-in"conditions,theiceproductionisgraduallyreducedinrespecttothe
levels shown in the graf, 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 temperature, water
temperature conditions of the condenser air filter and age of the machine.
TokeepyourSCOTSMANCUBERatpeakperformancelevels,periodicmaintenancechecksmust
be carried out as indicated on Maintenance and Cleaning section of this manual.
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
Kg.
32 27 21 15 10
AIR COOLED MODELS
WATER TEMPERATURE
AMBIENT TEMPERATURE
ICE PRODUCED PER 24 HRS.
10
21
32
38
°C
o
°C
o

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AC 107 AS 6 Air
AC 107 WS 6 Water Stainless steel 1/3 23 Kg.
Start . Electric power cons.
Amps Kwh per 24 Hr
Model Cond. unit Finish Comp. HP
SPECIFICATIONS
Basic electr. Amps Watts Nr. of wires Amps fuse
230/50/1 3.2 20 580 3 x 1.5 mm210
0125*
*NYA
AC 107 - CUBER (R290 version)
machine specifications
Cubes per harvest: 32 medium
* At 32/21 °C amb.-water
10.7
NYA
Bin Water req.
Capacity lt/24 HR

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Page 14
Stainless steel 1/3 23 Kg.
Start . Electric power cons.
Amps Kwh per 24 Hr
Model Cond. unit Finish Comp. HP
SPECIFICATIONS
Basic electr. Amps Watts Nr. of wires Amps fuse
230/50/1 3.2 20 580 3 x 1.5 mm210
0125*
*NYA
EC 107 - CUBER (R290 version)
machine specifications
Cubes per harvest: 32 medium
* At 32/21 °C amb.-water
10.7
NYA
Bin Water req.
Capacity lt/24 HR
EC 107 AS 6 Air
EC 107 WS 6 Water

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Page 15
MIN.
10°C
5°C
1 bar
-10%
Important operating requirements:
Air temperature
Water temperature
Water pressure
Electr. voltage variations
from voltage rating
specified
on nameplate
SPECIFICATIONS
ELECTRONIC CUBER MODEL AC-EC 127
MAX.
40°C
35°C
5 bar
+10%
ice making capacity
NOTE
. With the unit in "built-in" conditions, the ice production is gradually reduced in respect to the
levels shown in the graf, 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 temperature, water
temperature conditions of the condenser air filter and age of the machine.
To keep your SCOTSMAN CUBER at peak performance levels, periodic maintenance checks must
be carried out as indicated on Maintenance and Cleaning section of this manual.
76
74
72
70
68
66
64
62
60
58
56
54
52
50
48
46
Kg.
32 27 21 15 10
AIR COOLED MODELS
WATER TEMPERATURE
AMBIENT TEMPERATURE
ICE PRODUCED PER 24 HRS.
10
21
32
38
°C
o
°C
o

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AC-EC 127 AS 6 Air
AC-EC 127 WS 6 Water Stainless steel 1/2 39 Kg.
Start . Electric power cons.
Amps Kwh per 24 Hr
Model Cond. unit Finish Comp. HP
SPECIFICATIONS
Basic electr. Amps Watts Nr. of wires Amps fuse
230/50/1 4.5 20.5 670 3 x 1.5 mm210
177**
AC-EC 127 - CUBER
machine specifications
Cubes per harvest: 56 medium
* At 21°C water temperature
Dimensions:
HEIGHT (without legs) 920 mm.
HEIGHT (with legs) 1009 mm.
WIDTH 680 mm.
DEPTH 600 mm.
WEIGHT 70 Kgs.
12.9.0
Bin Water req.
Capacity lt/24 HR
920

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Page 17
MIN.
10°C
5°C
1 bar
-10%
Important operating requirements:
Air temperature
Water temperature
Water pressure
Electr. voltage variations
from voltage rating
specified
on nameplate
SPECIFICATIONS
ELECTRONIC CUBER MODEL AC-EC 177
MAX.
40°C
35°C
5 bar
+10%
ice making capacity
NOTE .Withtheunitin"built-in"conditions,theiceproductionisgraduallyreducedinrespecttothe
levels shown in the graf, 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 temperature, water
temperature conditions of the condenser air filter and age of the machine.
TokeepyourSCOTSMANCUBERatpeakperformancelevels,periodicmaintenancechecksmust
be carried out as indicated on Maintenance and Cleaning section of this manual.
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
Kg.
32 27 21 15 10
AIR COOLED MODELS
WATER TEMPERATURE
AMBIENT TEMPERATURE
ICE PRODUCED PER 24 HRS.
10
21
32
38
°C
o
°C
o

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Stainless steel 3/4 48 Kg.
AC-EC 177 AS 6 Air
AC-EC 177 WS 6 Water
Start . Electric power cons.
Amps Kwh per 24 Hr
Model Cond. unit Finish Comp. HP
SPECIFICATIONS
Basic electr. Amps Watts Nr. of wires Amps fuse
230/50/1 4 22 1000 3 x 1.5 mm216
150**
AC-EC 177 - CUBER
machine specifications
Cubes per harvest: 56 medium
* At 21°C water temperature
Dimensions:
HEIGHT (without legs) 990 mm.
HEIGHT (with legs) 1079 mm.
WIDTH 680 mm.
DEPTH 600 mm.
WEIGHT 70 Kgs.
17.4.0
Bin Water req.
Capacity lt/24 HR

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Forward the completed self-addressed
registration card to Frimont factory.
11. Ifnecessary,replacethefourstandardlegs
with the taller ones supplied in the machine and
adjust them to level the unit.
C. LOCATION AND LEVELLING
WARNING.ThisIceCuberis designed for
indoorinstallationonly.Extendedperiods
of operation at temperatures exceeding
the following limitations will constitute
misuseunderthetermsoftheSCOTSMAN
Manufacturer’sLimitedWarrantyresulting
in LOSS of warranty coverage.
1. Position the unit 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) Service access: adequate space must
beleftforallserviceconnectionsthroughtherear
of 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 unit in both the left to right and
front to rear directions.
D. ELECTRICAL CONNECTIONS
See data plate for current requirements to
determine wire size to be used for electrical
connections.AllSCOTSMAN icemakersrequire
a solid earth wire.
All SCOTSMAN ice machines are supplied from
thefactorycompletelypre-wiredandrequireonly
electrical power connections to the wire cord
provided at 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).
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.
A. INTRODUCTION
This manual provides the specifications and the
step-by-stepproceduresfortheinstallation,start-
upand operation, maintenance and cleaning for
the SCOTSMAN AC-EC series icemakers.
These 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 performance standards.
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 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 subjet to inspection of
the contents with the carrier’s representative
present.
3. a)Cutandremovetheplasticstripsecuring
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 panel of the unit and
inspectforanyconcealeddamage.Notifycarrier
ofyourclaimfortheconcealeddamageassteted
in step 2 above.
5. Check that refrigerant lines do not rub
againstor touchother linesorsurfaces, andthat
the fan blade moves freely.
6. Checkthatthe compressor fits snugly onto
all its mounting pads.
7. Remove all internal support packing and
masking tape.
8. Use clean damp cloth to wipe the surfaces
inside the storage bin and the outside of the
cabinet.
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.
GENERAL INFORMATION AND INSTALLATION

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Page 20
Check voltage on the line and the ice maker’s
data plate before connecting the unit.
E. WATER SUPPLY AND DRAIN
CONNECTIONS
GENERAL
Whenchoosingthewatersupplyfortheicecuber
consideration should be given to:
a) Length of run
b) Water clarity and purity
c) Adequate water supply pressure
Sincewateristhemostimportantsingleingredient
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 cloudy coloured ice cubes, plus scale
build-up on parts of the water system.
WATER SUPPLY
Air Cooled Versions
Connect the 3/4" male fitting of the solenoid
waterinletvalve,usingtheflexibletubesupplied,
tothecoldwatersupplylinewithregularplumbing
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 use an
appropriate water filter or conditioner.
Water supply - Water cooled models
The water cooled versions of SCOTSMAN Ice
Makersrequiretwoseparateinletwatersupplies,
oneforthewatersprayedformakingtheicecubes
and the other for the water cooled condenser.
Connect the 3/4" GAS male fitting of the water
inlet, using the flexible tubing or a 3/8" O.D.
copper pipe, 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.
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.
WATER DRAIN - WATER COOLED MODELS
Connect the 3/4" male fitting of the condenser
water drain, utilizing a second flexible hose, to
the open trapped and vented drain.
NOTE. Thewatersupplyandthewaterdrain
must be installed to conform with the local
code. In some case a licensed plumber and/
or a plumbing permit is required.
WATER DRAIN - EC version
The water can be pumped out up to 1.5 m rise
or
to 30 m on horizontal length.
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
connections been made, and is the water
supply shut-off valve open?
5. Hasthevoltagebeentestedandchecked
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).
7. Check all refrigerant lines and conduit
lines to guard against vibrations and possible
failure.
8. Havetheboltsholdingthecompressordown
been checked to ensure that the compressor is
snugly fitted onto the mounting pads?
9. Have the bin liner and cabinet been wiped
clean?
POWER
WATER INLET
WATER DRAIN
HAND DISCONNECT
SWITCH
WATER
FILTER
WATER
VALVE
POWER
WATER INLET
WATER DRAIN
HAND DISCONNECT
SWITCH
WATER
FILTER
WATER
VALVE