Scotsman C2648 Service Manual
Service Manual for
Modular Cuber
Model C2648
induding
Prodigy Plus
C2648 Prodigy and Prodigy Plus Service Manual
Introduction
The design of this modular remote cuber is the result of years of experience with remote ice machine
refrigeration systems. Standard features of this product include front accessible on-off switches, always-visible
indicator lights, mechanical assist ice harvest for extra efciency, automatically adjusting water purge and a
control system that optimizes system operation.
The manual includes installation information, technical details, diagnostics and service parts.
Note the Caution and Warning symbols when they appear on the product or in this manual. They indicate
potential hazards. Keep this manual for future reference.
Contents
Installation: Product Specifications .......... Page 3
Model Number Description ................ Page 4
Product Description, Electrical Requirements .. Page 5
Condenser and Ice Machine Layouts ........ Page 6
Water ................................. Page 7
Panel Removal ......................... Page 8
Precharged Line Routing .................. Page 11
Coupling Instructions ..................... Page 12
Plumbing Requirements .................. Page 13
Electrical .............................. Page 14
Final Check List: ........................ Page 15
Initial Start Up .......................... Page 16
Adjustments ............................ Page 17
Use and Operation ...................... Page 18
Switch Panel Area ....................... Page 19
Options and Other Information ............. Page 20
Cleaning, Sanitation and Maintenance ....... Page 21
Remote condenser and other maintenance ... Page 23
What to do before calling for service ......... Page 24
Overall System Types: .................... Page 25
Controller Information .................... Page 26
Controller Information .................... Page 27
How It Works ........................... Page 28
Electrical Sequence - Remote Cooled. . . . . . . . Page 29
Electrical Component Details .............. Page 30
Electrical Component Details .............. Page 31
Component Indicator Light Table ............ Page 32
Refrigeration ........................... Page 33
Refrigeration Schematic .................. Page 34
Water System .......................... Page 35
Control Operation ....................... Page 36
Control Safeties ......................... Page 37
Restarts ............................... Page 38
Control Button Use (from standby) .......... Page 39
Diagnostics ............................ Page 40
Diagnostics ............................ Page 41
Diagnostics ............................ Page 42
Test Procedures - Sensors ................ Page 43
Ice Thickness Sensor .................... Page 44
Water Level Sensor ...................... Page 45
Temperature Sensors .................... Page 46
Water Pumps ........................... Page 47
Purge valve ............................ Page 48
Compressor contactor .................... Page 49
Pressure switch ......................... Page 50
Liquid Line Solenoid ..................... Page 51
Inlet Water Solenoid Valve. . . . . . . . . . . . . . . . . Page 52
Harvest Assist .......................... Page 53
Reservoir Removal ...................... Page 54
Controller Differences .................... Page 55
Thermistor Values ....................... Page 56
Performance Information .................. Page 57
Repair Procedures. . . . . . . . . . . . . . . . . . . . . . . Page 58
Harvest Assist .......................... Page 59
Ice thickness sensor ..................... Page 60
Contactor or Controller ................... Page 61
Curtain or Curtain Switch. . . . . . . . . . . . . . . . . . Page 62
Purge Valve or Water Level Sensor. . . . . . . . . . Page 63
Water pumps ........................... Page 64
Evaporator ............................. Page 65
Compressor ............................ Page 66
Thermostatic Expansion Valve ............. Page 67
January 2015
Page 2
C2648 Prodigy and Prodigy Plus Service Manual
Installation: Product Specications
Location Limitations
This ice system is made up of three parts, the ice
making machine, or head; the remote condenser; and
the interconnecting tubing. The ice making machine
must be installed indoors, in a controlled environment.
Space must be provided near the machine for service
access. The remote condenser may be installed
above or below the ice machine, per the limits stated
later in this manual. The remote condenser may
be installed outdoors within the temperature limits
listed below. The interconnecting tubing must be
installed per the directions stated in this manual,
and the amount of tubing exposed to uncontrolled
temperatures must be minimized.
Space Limitations
Although the machine will function with no clearance
to the top and sides, some space must be allowed
for service access. Building the machine in with no
access will cause higher service cost, in many cases
this extra cost may not be covered by warranty.
Environmental Limitations, ice machine:
Minimum Maximum
Air temperature 50oF. 100oF.
Water
temperature
Water pressure 20 psi 80 psi
40oF. 100oF.
Remote condenser
Minimum Maximum
Air temperature -20oF. 120oF.
Power Supply
Minimum Maximum
208-230 volt
model
Warranty Information
The warranty statement for this product is provided
separately from this manual. Refer to it for applicable
coverage. In general warranty covers defects
in material and workmanship. It does not cover
maintenance, corrections to installations, or situations
when the ice machine is operated in circumstances
that exceed the limitations printed above.
Product Information
The machine is a specialized version of a modular
cuber. A modular cuber does not include any ice
storage, it is designed to be placed onto an ice
storage bin. Many installations only require the
matching bin, but some may need an adapter to be
placed between the ice machine and the bin.
Additionally, the machine must be connected to the
correct remote condenser and use the correct precharged tubing. The machine is supplied with a full
refrigerant charge, eld charging is not required.
198 volts 253 volts
This product cannot be stacked.
January 2015
Page 3
C2648 Prodigy and Prodigy Plus Service Manual
Model Number Description
Example
• C2648SR-3D
• C=cuber
• 24=nominal capacity in 100s of pounds
• 48=nominal width of cabinet in inches
• S=cube size, S=small or half dice,
• M=medium or full dice
• R=condenser type. R=Remote
• -3=Electrical code. = 208-230/60/3
• D=series revision code.
Note: In some areas of this manual model
numbers may include only the rst ve characters
of the model number, meaning that cube size,
condenser type and voltage differences are not
critical to the information listed there.
Options:
There are several options available for eld
installation. They include:
• Vari-Smart Adjustable ice level system
• Smart-Board Advanced feature control
Some installations require bin or dispenser adapters.
See the table below.
Standard bin applications – Adapter information
Model BH1100, BH1300 or BH1600
C2648 Adapter panels included with bin, no
adapter needed
Other bins and applications:
Take note of the depth of the machine. Slope front
bins may not be deep enough to allow the bin door
to rest open against the machine. Upright bins are
recommended.
Note the drop zone and optional ultrasonic sensor
locations in the illustrations. Drop zone hole must be
20.25” deep.
Scotsman ice systems are designed and
manufactured with the highest regard for safety and
performance. They meet or exceed the standards of
UL and NSF.
Scotsman assumes no liability of responsibility of
any kind for products manufactured by Scotsman
that have been altered in any way, including the use
of any part and/or other components not specically
approved by Scotsman.
Scotsman reserves the right to make design changes
and/or improvements at any time. Specications and
design are subject to change without notice.
January 2015
Page 4
C2648 Prodigy and Prodigy Plus Service Manual
Product Description, Electrical Requirements
Ice Machine
Dimensions
w” x d” x h”
48 x 28 x 31 C2648SR-3 208-230/60/3 PRC241-32A 21.6 30 30
same C2848MR-3 208-230/60/3 PRC241-32A 21.6 30 30
Remote Condenser Footprint: On center mounting hole spread: 27.57” w x 33.38” d. See page 5.
Minimum bin top opening: 20.5” x 40.5” includes drop zones and ultrasonic sensor location. See page 5.
*Or HACR circuit breakers.
Table notes: Series revision code omitted. All the
listed condensers include a headmaster valve.
Ratings include the remote condenser motor, as it
is designed to be powered by the ice machine. If
connecting remote condenser independently of the
ice machine, use the information on the condenser's
dataplate for fuse and wire sizes.
Condensers are UL listed for these model ice
machines.
Central Condenser (Rack) Coils
Model Electrical Use
condenser
Minimum
Circuit
Ampacity
Maximum
Fuse* Size
Suggested
Fuse* Size
The ice machine may be connected to a central
condenser coil. The requirements are:
• Coil – not previously used with mineral oil system.
Virgin coil preferred.
• Correct size (internal volume) and capacity (BTUH).
Contact Scotsman for data.
• Includes a headmaster valve for discharge pressure
control rated at 217 PSIG.
• Fan motor on all the time or controlled to be on
whenever the ice machine is operating.
• U.L. listed for the ice machine
• Non-Scotsman condensers must have prior
Scotsman Engineering approval for warranty
coverage to be in effect.
January 2015
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C2648 Prodigy and Prodigy Plus Service Manual
Condenser and Ice Machine Layouts
January 2015
Page 6
C2648 Prodigy and Prodigy Plus Service Manual
Water
The quality of the water supplied to the ice machine
will have an impact on the time between cleanings
and ultimately on the life of the product. There are
two ways water can contain impurities: in suspension
or in solution. Suspended solids can be ltered out.
In solution or dissolved solids cannot be ltered, they
must be diluted or treated.
Water lters are recommended to remove suspended
solids. Some lters have treatment in them for
suspended solids. Check with a water treatment
service for a recommendation.
Scotsman lters:
A triple head lter is recommended. Either the
Scotsman SSM3 taste and odor lter system, or the
ADS-AP3 AquaPatrol system.
Water ow is 2.5 GPM when lling the reservoir.
RO water:
This machine can be supplied with Reverse Osmosis
water, but the water conductivity must be no less than
10 microSiemens/cm.
Additionally, devices intended to enhance ice machine
sanitation, such as the Scotsman Aqua Bullet, can
be placed in the machine to keep it cleaner between
manual cleanings.
Water Purge
Cube ice machines use more water than what ends
up in the bin as ice. While most water is used during
ice making, a portion is designed to be drained out
every cycle to reduce the amount of hard water scale
in the machine. That’s known as water purge, and an
effective purge can increase the time between needed
water system cleaning. In addition, this product is
designed to automatically vary the amount of water
purged based on the purity of the water supplied to it.
The water purge rate can also be set manually.
Adjustments of purge due to local water conditions
are not covered by warranty.
Potential for Airborne Contamination
Installing an ice machine near a source of yeast
or similar material can result in the need for more
frequent sanitation cleanings due to the tendency of
these materials to contaminate the machine.
Most water lters remove chlorine from the water
supply to the machine which contributes to this
situation. Testing has shown that using a lter that
does not remove chlorine, such as the Scotsman
Aqua Patrol, will greatly improve this situation, while
the ice making process itself will remove the chlorine
from the ice, resulting in no taste or odor impact.
January 2015
Page 7
C2648 Prodigy and Prodigy Plus Service Manual
Panel Removal
1. Locate and loosen the two screws at the bottom
edge of the front panel.
2. Pull the front panel out at the bottom until it clears
the bin.
3. Lower the front panel down and off the machine.
4. Remove two screws from the front corners of the
top panel.
5. Lift up the front of the top panel, push it back an
inch, then lift to remove.
6. Locate and remove the screws holding each side
panel to the base.
7. Pull the side panel forward to release it from the
back panel.
This manual covers several models. The model
number on the ice machine can be found either on
the dataplate, which is on the back panel, or the serial
number tag, which is behind the front panel. See the
illustration for the locations of the dataplate and the
serial number tag.
Install the bin top adapter if one is required for the
application.
If the ice machine has not been unpacked, do so
now. Remove the carton from the skid. Cut away any
shipping strapping. Lift the ice machine off the skid
directly onto the bin.
Note: The machine is heavy. Use a mechanical lift.
If lifting from the front, be sure that fork tines are
under the front and back of the cabinet. If lifting
from the side, be sure to have tines under the
front and back. Do not lift on the sump bottom.
Scotsman BH1100, BH1300, BH1600: Position back
of ice machine about 2 3/8” from back of bin.
Secure the ice machine to the bin with the hardware
provided (two metal Z straps and four bolts).
The remote condenser has a separate model and
serial number. Its model and serial number is on the
dataplate on the condenser near the quick connect
ttings.
Write the model and serial number of the ice machine
here:
Write the model and serial number of the remote
condenser here:
Write the model and serial number of the ice storage
bin here:
Write the day of initial start up here: That day starts
the warranty period.
Uncrate and Set Up
Begin with the ice storage bin. Uncrate and attach
legs. Check the bin top gasket for tears or gaps. If
recycling an older bin, replace the gasket or repair
with food grade sealant prior to placing the ice
machine on the bin.
January 2015
Page 8
C2648 Prodigy and Prodigy Plus Service Manual
Remote Condenser Location
Use the following for planning the placement of the
condenser relative to the ice machine
Location Limits - condenser location must not exceed
ANY of the following limits:
• Maximum rise from the ice machine to the
condenser is 35 physical feet
• Maximum drop from the ice machine to the
condenser is 15 physical feet
• Physical line set maximum length is 100 feet.
• Calculated line set length maximum is 150.
Calculation Formula:
• Drop = dd x 6.6 (dd = distance in feet)
• Rise = rd x 1.7 (rd = distance in feet)
• Horizontal Run = hd x 1 (hd = distance in feet)
• Calculation: Drop(s) + Rise(s) + Horizontal
Run = dd+rd+hd = Calculated Line Length
Congurations that do NOT meet these requirements
must receive prior written authorization from
Scotsman.
Do NOT:
• Route a line set that rises, then falls, then rises.
• Route a line set that falls, then rises, then falls.
Calculation Example 1:
The condenser is to be located 5 feet below the ice
machine and then 20 feet away horizontally.
5 feet x 6.6 = 33. 33 + 20 = 53. This location would be
acceptable
Calculation Example 2:
The condenser is to be located 35 feet above and
then 100 feet away horizontally. 35 x 1.7 = 59.5.
59.5 +100 = 159.5. 159.5 is greater than the 150
maximum and is NOT acceptable.
hd
rd
dd
40.35"
Condenser Distance &
Remote Condenser Located
Max 35’
22.87"
Max 15’
ABOVE Ice Machine
Location Schematic
17.15"
Remote Condenser Located
BELOW Ice Machine
January 2015
Page 9
C2648 Prodigy and Prodigy Plus Service Manual
For The Installer: Remote Condenser
Locate the condenser as near as possible to the
interior location of the ice machine.
Note: The location of the condenser is relative to
the ice machine is LIMITED by the specication on
the prior page.
Meet all applicable building codes.
Remote
Condenser
Roof Attachment
Install and attach the remote condenser to the roof
of the building, using the methods and practices of
construction that conform to the local building codes,
including having a roong contractor secure the
condenser to the roof.
Interconnecting Tubing
Power Supply
Ice Machine
Remote Condenser, Typical System Illustration
January 2015
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C2648 Prodigy and Prodigy Plus Service Manual
Precharged Line Routing
Do not connect the precharged tubing until all routing
and forming of the tubing is complete. See the
Coupling Instructions for nal connections.
Important: CONFIRM that the correct line set
(RTEL prex) has been provided.
1. Each set of pre-charged tubing lines contains
a 1/2” diameter liquid line and a 5/8” diameter
discharge line.
Note: The openings in the building ceiling or wall,
listed in the next step, are the minimum sizes
recommended for passing the refrigerant lines
through.
2. Have the roong contractor cut a minimum hole
for the refrigerant lines of 2”. Check local codes,
a separate hole may be required for the electrical
power supply to the condenser.
Caution: Do NOT kink the refrigerant tubing while
routing it.
3. Route the refrigerant tubes thru the roof opening.
4. Follow straight line routing whenever possible.
Excess tubing may EITHER be coiled up INSIDE
the building OR cut out prior to connection to the
ice maker and condenser.
If the excess tubing is cut out, after re-brazing the
tubing must be evacuated prior to connection to the
ice maker or condenser.
If the excess tubing is to be coiled, spiral it
horizontally to avoid excess trapping in the lines.
5. Have the roong contractor seal the holes in the
roof per local codes
Minimize tubing
routed outside
of the controlled
space
Best Practice: Coil
excess tubing inside
the building in a
horizontal coil.
January 2015
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C2648 Prodigy and Prodigy Plus Service Manual
Coupling Instructions
The couplings on the ends of the pre-charged line
sets are self-sealing when installed properly.
Follow these instructions carefully.
These steps must be performed by an EPA Certied
Type II or higher technician.
Initial Connections
1. Remove the protector caps and plugs. Wipe the
seats and threaded surfaces with a clean cloth to
It is important that ONLY the nut on the pre-charged
tube be turned, or the diaphragms will be torn out
by the piercing knives and they will be loose in the
refrigeration system.
Note: As the couplings are tightened, the
diaphragms in the quick connect couplings will
begin to be pierced. As that happens, there will be
some resistance to tightening the swivel nut.
remove any possible foreign matter.
2. Lubricate the inside of the couplings, especially
the threads and O-rings, with refrigerant oil.
3. Position the ttings on the correct connections on
the condenser and ice machine.
• Connect the 5/8” discharge line to the remote
condenser tting.
• Connect the 1/2" liquid line to the remote condenser
tting.
• Connect the discharge line to the ice maker tting.
• Connect the 1/2" liquid line to the ice maker tting.
Final Connections:
4. Tighten the couplings together by hand until it is
certain that the threads are properly engaged.
5. Hold the tubing from rotating with one wrench and
tighten each coupling swivel nut with another until
it bottoms out or a denite increase in resistance
is felt.
6. Mark a line on the coupling nut and unit panel.
Then tighten the coupling nut an additional one-
quarter turn. The line will show the amount that
the nut turns. Do NOT over tighten.
7. Check the couplings for leaks after all connections
have been made, and after the king / liquid outlet
valve has been opened (do not open at this time).
January 2015
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C2648 Prodigy and Prodigy Plus Service Manual
Plumbing Requirements
All models require connection to cold, potable water.
A hand actuated valve within site of the machine is
required. There is a single 3/8” are nut inlet water
connection, and a 3/8” to 3/8” are union is supplied
with the machine and can be used if desired.
Water Filters
Install a new cartridge if the lters were used with a
prior machine.
Drains
All models require drain tubing to be attached to them.
There is a single ¾” FPT drain tting in the back of the
cabinet.
Install new tubing when replacing a prior ice machine,
as the tubing will have been sized for the old model
and might not be correct for this one.
Water Inlet
Connection
1. Connect water supply to water inlet ttings.
2. Connect drain tubing to drain tting.
3. Route the drain tubing to building drain. Follow
local codes for air gap.
4. Use rigid drain tubes and route them separately –
do not Tee into the bin’s drain.
Vent the reservoir drain. A vertical vent at the back of
the drain, extended about 8 – 10” will allow the gravity
drain to empty and also keep any surges during
draining from discharging water.
Horizontal runs of drain tubing need a ¼” per fall per
foot of run for proper draining.
Follow all applicable codes.
Potable Water
Supply
Optional Water
Filters
Reservoir Drain,
Venting Required
Floor Drain
Water Supply and Drain Connections
January 2015
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C2648 Prodigy and Prodigy Plus Service Manual
Electrical
The machine is not supplied with a power cord, one
must either be eld installed or the machine hard-
wired.
The dataplate on the back of the cabinet details
the power requirements, including voltage, phase,
minimum circuit ampacity and maximum fuse size.
HACR type circuit breakers may be used in place of
fuses. Extension cords are not permitted. Use of a
licensed electrician is recommended.
The ice maker is designed to operate on its own
electrical circuit and must be individually fused.
Voltage variation must not exceed the limits listed
earlier.
The remote condenser is designed to be powered
from the ice machine. A separate knockout hole has
been provided near the ice maker electrical junction
box.
Remote
Condenser
Electrical
Connection
Electrical connections are made inside the junction
box in the back panel of the ice machine.
1. Remove the junction box cover and route the
power cord through the access hole and properly
attach the power supply wires to the leads in the
junction box.
2. Attach the remote condenser fan motor wires to
the wires in the junction box tagged “fan motor
leads”.
3. Install eld supplied strain reliefs per code. Attach
a ground wire to the ground connection in the
junction box.
4. Check voltage when complete.
5. Return the junction box cover to its original
position and secure with the original screws.
Follow all applicable local, state and national codes.
Power
Supply
Electrical Connections
January 2015
Page 14
C2648 Prodigy and Prodigy Plus Service Manual
Final Check List:
1. Is the unit located indoors in a controlled
environment?
2. Is the unit located where it can receive adequate
cooling air?
3. Has the correct electrical power been supplied to
the machine?
4. Have all the water supply connections been
made?
5. Have all the drain connections been made?
6. Has the remote condenser been properly
installed?
7. Has the interconnecting tubing been properly
routed between the remote condenser and the ice
machine?
8. Have the quick connects been properly
connected?
9. Has the power supply wire from the ice machine
to the remote condenser been properly run and
connected?
10. Has the unit been leveled?
11. Have all unpacking materials been removed?
12. Is the water pressure adequate?
13. Have the drain connections been checked for
leaks?
14. Has the bin interior been wiped clean or sanitized?
15. Have any water lter cartridges been replaced?
16. Have all required kits and adapters been properly
installed?
January 2015
Page 15
C2648 Prodigy and Prodigy Plus Service Manual
Initial Start Up
Remove front and left side panels. Check machine
for any packing or wires rubbing moving parts. Note
location of control board in lower left corner of the
machine’s front.
1. Switch on the electrical power to the machine.
2. Observe that some of the control’s indicator lights
glow and its display shows O.
3. Wait 4 hours for the compressor’s crankcase
heater to warm up the oil in the compressor.
1. Open the water supply valve.
2. Turn the receiver’s outlet valve to the full open
position.
3. Push and release the ON button of the lower left
corner switch panel.
The indicator light will begin to blink F. The purge
valve will open and the water pumps will start.
The inlet water valve will open to add water to the
reservoir. After a few seconds the purge valve will
close and the water pumps will stop. Water will ow
into the machine until the reservoir is full. The hot
gas valves and harvest assist devices will activate
and the liquid line solenoid valve will open, then the
compressor, remote fan motor and water pumps
will start. The display will show a continuous F. Five
seconds later the hot gas valves will close and the
harvest assist devices will return to their standby
positions. Warm air will be discharged from the
condenser coil.
7. When the ice has frozen enough, the Ready for
Harvest indicator light will be on steady. After it’s
been on steady for a few seconds Harvest will
begin.
The display shows an H. The hot gas valves open
and the harvest assist mechanisms are activated.
The purge valve opens to drain some water, when it
does the inlet water valve opens to rell the reservoir.
After a few seconds the purge valve closes but the
inlet water valve continues to ll the reservoir. Harvest
continues until the ice is released as a unit from each
evaporator and forces each curtain to open.
8. When all curtains have opened and re-closed the
controller returns the unit to a freeze cycle.
9. Check the ice harvested for proper bridge
thickness. The ice bridge is factory set at 3/16
inch. If needed, adjust bridge thickness. Do NOT
make it too thin.
10. Determine the water purge setting from the table
on the next page. If desired, change the setting to
accommodate the local water conditions.
11. Return the panels to their normal positions and
secure them to the machine.
12. Instruct the user in the operation of the machine
and its maintenance requirements.
13. Fill out and mail the warranty registration form or
go on line at Scotsman’s website, www.scotsmanice.com and register it there.
4. During the Freeze cycle move each curtain to
conrm the controller is getting the signal from the
curtain switch. Two of them will cause the SW1 or
SW2 light on the control board to blink ON when
the curtain moves away from the evaporator and
OFF. One of the curtains will cause the period in
the display code to blink ON when the curtain is
moved away and OFF when returned to its normal
position.
5. Note: Moving the curtain during the Freeze cycle
has no affect on unit operation.
6. Observe the Ready for Harvest indicator light. It
may blink early in the freeze cycle, that is normal.
The control will ignore that signal for the rst 6
minutes of freeze.
January 2015
Typical Ice Making Cycle Times (minutes)
Model 70oF. cond air /
50oF. water
C2648R 11 - 13 13 - 15
Listed times are for clean machines. Cycle times at
startup will be longer until the system stabilizes.
Page 16
90oF. cond air /
70oF. water
C2648 Prodigy and Prodigy Plus Service Manual
Adjustments
Bridge Thickness - For A Service Tech Only
1. Push and hold Off till the machine stops.
2. Remove evaporator cover.
3. Remove left curtain.
4. Use a box wrench and rotate the bridge thickness
adjustment screw in 1/8 turn increments CW
to increase bridge thickness. Rotate CCW to
decrease bridge thickness.
Caution: Do not make the bridge too thin or the
machine will not harvest properly. Bridge thickness
adjustments are not covered by warranty.
5. Return curtain to its normal position.
6. Push and release the On button. Check next
harvest of ice. Repeat steps 1-6 if needed.
1/8 to 3/16” bridge
Too Big
Just Right,
Small Cube
Just Right,
Medium Cube
Ice Bridge Thickness Measurement
Too Small
Water purge setting
The water purge is factory set to the automatic
position, suitable for most water conditions. The
setting can be changed to one of 5 manual settings or
left on automatic.
purge
1 - Minimum 2 - Moderate 3 - Standard 4 - Heavy 5 - Maximum A - Automatic
setting
Water
Type
RO water or
equivalent
Factory
Setting for
typical water
To set:
1. Switch the machine OFF by holding the Off button
in until a number or the letter A shows on the
display.
2. Press and release the On button repeatedly until
the number on the display corresponds to the
desired setting.
Ice Thickness Sensor
High TDS
water
Any with
conductivity not
less than 10
microSiemens/cm
3. Press and release the Off switch again to return to
the normal control state.
January 2015
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C2648 Prodigy and Prodigy Plus Service Manual
Use and Operation
Once started, the ice machine will automatically
make ice until the bin or dispenser is full of ice. When
ice level drops, the ice machine will resume making
ice. There are four indicator lights at the front of the
machine that provide information on the condition of
the machine.
External Indicator Lights:
• Power
• Status
• Water
• Clean
Indicator Lights & Their Meanings
Power Status Water De-Scale & Sanitize
Steady Green Normal Normal – bin full or
making ice
Blinking Green Self Test Failure Switching on or off - Blinking Red - Diagnostic
shutdown or,
if making ice,
temperature sensor
failure
Yellow - - - Time to de-scale
Blinking Yellow - - - In Cleaning mode
Light off No power Switched off Normal Normal
If the Water light is on, the machine has sensed a
lack of water. Check the water supply to the machine.
The water may have been shut off or the water lter
cartridges need to be changed.
- -
Lack of water -
and sanitize
If the Clean light is on, the machine has determined
that it may need to be cleaned. Contact an authorized
Scotsman service agent and have the machine
cleaned, de-scaled and sanitized.
Other Indicators
Removal of the front panel allows review of the Code
Display and Component Indicator Lights.
Note: A Component Indicator Light switches ON
to indicate that the component is operating.
Note: There are three Curtain Switch lights, SW1,
SW2 and the Period in the display code. A curtain
switch light is ON when a curtain is either open or not
present.
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C2648 Prodigy and Prodigy Plus Service Manual
Switch Panel Area
The On and Off switches are front accessible at the
lower left corner.
Switch Door
To switch the machine OFF, push and release the Off
button. The machine will shut off at the end of the next
cycle.
To switch the machine ON, push and release the
On button. The machine will go through a start up
knob and an additional indicator light to the right of the
controller’s switches near the top of the unit.
The ultrasonic ice level control allows control of the
point that the ice machine stops making ice. Reasons
for this include:
• Seasonal changes in ice used
• Planning to sanitize the bin
• Faster turnover for fresher ice
Use of adjustable ice level control
There are several positions the ice level can be set
to, including Off (knob and label indicators lined up),
w
e
Bin
o
r
L
Full
Adjust Ice Level
02-4294-01 Rev. A.
where it lls the bin until the standard bin control shuts
the machine off. See the kit’s instructions for complete
details.
process and then resume ice making.
Control Options
There are two optional, eld installed controls that can
be on this machine.
• KVS Adjustable ice level control
• KSBU Advanced Feature control
Adjustable ice level control (optional)
When this option is present there is an adjustment
January 2015
Page 19
Rotate the adjustment post to the desired ice level.
The machine will ll up to that level and when it shuts
off the Bin Full indicator light next to the adjustment
knob will be On.
Note: Ice will build up in the bin at an angle, the
distances controlled will be from the sensor to the
top of the ice directly beneath it.
C2648 Prodigy and Prodigy Plus Service Manual
Options and Other Information
Smart-Board
When this option is present there is an additional
display panel in the area below the main control
board. It is not visible when the front panel is on.
The Smart-Board’s features include:
• Seven day programmable ice level setting when
used with the optional Vari-Smart ice level control
• Recording of machine operation, including cycle
time.
• Calculation of average cycle time
• Recall of malfunctions with the time they occurred.
Ice
The cuber drops ice in large sections. That ice will
break up into random parts as it falls into the bin, but
some large sections may remain on top of the ice in
the bin.
Heat
Most heat is exhausted at the remote condenser. The
ice machine head should not generate signicant
heat.
Noise
The ice machine will make noise when it is in ice
making mode. The compressor and water pumps all
produce some sound. It is also normal to hear some
cracking just before the harvest cycle begins.
The ice harvests as a unit or slab, which makes some
noise when it impacts the bin. These noises are all
normal for this machine.
Caution: Do not place anything on top of the ice
machine, including the ice scoop. Debris and moisture
from objects on top of the machine can work their way
into the cabinet and cause serious damage. Damage
caused by foreign material is not covered by warranty.
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C2648 Prodigy and Prodigy Plus Service Manual
Cleaning, Sanitation and Maintenance
This ice system requires three types of maintenance:
• Remove the build up of mineral scale from the ice machine’s water system and sensors.
• Sanitize the ice machine’s water system and the ice storage bin.
• Clean the remote condenser.
It is the User’s responsibility to keep the ice machine and ice storage bin in a sanitary condition. Without
human intervention, sanitation will not be maintained. Ice machines also require occasional cleaning of their
water systems with a specically designed chemical. This chemical dissolves mineral build up that forms during
the ice making process.
Sanitize the ice storage bin as frequently as local health codes require, and every time the ice machine is
cleaned and sanitized.
The ice machine’s water system should be cleaned and sanitized a minimum of twice per year.
1. Remove front panel.
2. Push and release the Clean button. Machine will
go thru a manual harvest and then begin draining
the reservoir.
Note: All curtains must be in their closed
positions. Move curtains to release an ice trapped
after ice is harvested.
3. Remove the evaporator cover.
Scotsman Ice Machine
Cleaner contains acids.
These compounds may cause
burns.
If swallowed, DO NOT
induce vomiting. Give large
amounts of water or milk. Call
Physician immediately. In
case of external contact, ush
with water.
4. Remove all ice from the bin.
5. Wait until the Code Display blinks the characters
A d 1, then pour 24 ounces of Scotsman Clear
1 Scale remover into the water reservoir. The
machine will go through a circulation and ushing
cycle and then shut off, displaying O. This will take
35 minutes.
Set aside.
9. Remove evaporator covers, set aside.
10. Remove right side panel and liner, set aside.
11. Remove all three curtains. Set aside.
12. Twist counterclockwise and lift water pumps up
and tip to one side.
13. Remove front water reservoir cover plate, set
aside.
14. Remove sump cover and water level sensor, set
sump cover aside.
15. Pull water reservoir forward; tip up and out of the
machine.
16. Mix a locally approved sanitizer solution. A
recommended sanitizer is 1 two ounce packet
of Stera Sheen Green Label to two gallons of
lukewarm (95-100 degrees F.) water.
17. Thoroughly wash the water reservoir cover plate,
sump cover, water distributors, distributor covers,
evaporator covers, right side panel liner, curtains
and reservoir with the sanitizer solution.
18. Thoroughly wash the shelf of the ice machine
cabinet where the reservoir was resting.
19. Thoroughly wash the interior of the evaporator
compartments including the back panels and
evaporator edges.
6. Check for scale, repeat steps 2 thru 5 if scale is
still evident.
7. Disconnect pump hoses from water distributors.
8. Depress snaps and pull water distributors forward
and out of the machine. Remove covers and
inspect for scale. Remove any remaining scale.
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20. Return the reservoir to its original position
21. Return the sump cover, water level sensor, water
distributors with covers, pump hoses, evaporator
covers, right side panel liner and curtains to their
original positions on the ice machine.
22. Return the pumps to their normal positions.
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