Scotsman C2648 - User 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 efficiency, 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.
November 2010
Page 1
C2648 Service Manual
Installation Table of Contents
Installation: Product Specifications .................................Page 2
Model Number Description .....................................Page 3
Electrical and Refrigeration Requirements .............................Page 4
Condenser and Ice Machine Layouts ................................Page 5
Water ................................................Page 6
Panel Removal ...........................................Page 7
Remote Condenser Location ....................................Page 8
For The Installer: Remote Condenser ...............................Page 9
Precharged Line Routing ......................................Page 10
Coupling Instructions ........................................Page 11
Plumbing Requirements .......................................Page 12
Electrical ...............................................Page 13
Final Check List: ..........................................Page 14
Initial Start Up ............................................Page 15
Adjustments .............................................Page 16
Use and Operation .........................................Page 17
Switch Panel Area ..........................................Page 18
Options and Other Information ...................................Page 19
Cleaning, Sanitation and Maintenance ...............................Page 20
Remote condenser and other maintenance ............................Page 22
Prodigy Cuber System Information .................................Page 23

Installation: Product Specifications
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
40oF. 100oF.
Water pressure 20 psi 80 psi
Note: While the ice machine will operate under the
listed conditions, ice making capacity will be
reduced with increases in water supply
temperature and/or air temperatures at the
condenser. Bin meltage will also increase with any
increase in room temperature.
Remote condenser
Minimum Maximum
Air temperature -20oF. 120oF.
Power Supply
Minimum Maximum
208-230 volt
model
198 volts 253 volts
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
pre-charged tubing. The machine is supplied with a
full refrigerant charge, field charging is not
required.
This product cannot be stacked.
November 2010
Page 2
C2648 Service Manual - Installation

Model Number Description
Example
•C2648SR-3A
•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
•A=series revision code. A=first series.
Note: In some areas of this manual model numbers
may include only the first five 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 field
installation. They include:
•Vari-SmartäAdjustable ice level system
•Smart-BoardäAdvanced 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
specifically approved by Scotsman.
Scotsman reserves the right to make design
changes and/or improvements at any time.
Specifications and design are subject to change
without notice.
November 2010
Page 3
C2648 Service Manual - Installation

Electrical and Refrigeration Requirements
*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
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.
Precharged tubing kits:
The ice making head’s and the remote condenser’s
refrigeration circuits must be connected. They are
designed to be connected using precharged
refrigerant tubing, supplied in kits of liquid and
discharge tubes. Several lengths are available,
order the one that just exceeds the length needed
for the site.
10' 20’ 40’ 75’
C2648 RTEL10 RTEL25 RTEL40 RTEL75
No additional refrigerant is required.
November 2010
Page 4
C2648 Service Manual - Installation
Ice Machine
Dimensions
w”xd”xh”
Model Electrical Use
condenser
Minimum
Circuit
Ampacity
Maximum
Fuse*
Size
Suggested
Fuse* Size
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.

Condenser and Ice Machine Layouts
November 2010
Page 5
C2648 Service Manual - Installation
PRC241-32A
90
29.50
749.30
37.66
956.61 38.91
988.36
27.57
MOUNTING
HOLES Ø .562
700.28
.87
22.10
18.48
469.37
14.61
371.19
23.57
598.58
10.72
272.20
DISCHARGE LINE
5/8 IN. MALE CPLG.
LIQUID LINE
1/2 IN. MALE CPLG.
Ø .88
ELECTRICAL
INLET
AIR
FLOW
33.38
MOUNTING
HOLES Ø.562
847.95
34.65
880.11
2.77
70.31
31.86
809.32
48.33
47.89
34.06
FRONT VIEW
28.28
27.56
RIGHT VIEW
3.50
11.80
19.75
4.50
2.50
15.00
4.25
20.25
2.30
40.50
DROP ZONE
TOP VIEW
MIN. BIN TOP
OPENING
ULTRASONIC BIN
LEVEL SENSOR
0
4.13 5.01 7.43
38.62 39.62
0
3.79
7.04
27.97
28.57
31.53
ELECTRICAL
REMOTE CONDENSER
FAN MOTOR
DRAIN 3/4" F.P.T.
POTABLE WATER
3/8" FLARE (FITTING
INCLUDED)
BACK VIEW

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
filtered out. In solution or dissolved solids cannot
be filtered, they must be diluted or treated.
Water filters are recommended to remove
suspended solids. Some filters have treatment in
them for suspended solids. Check with a water
treatment service for a recommendation.
Scotsman filters:
A triple head filter is recommended. Either the
Scotsman SSM3 taste and odor filter system, or
the ADS-AP3 AquaPatrol system.
Water flow is 2.5 GPM when filling 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.
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 filters remove chlorine from the water
supply to the machine which contributes to this
situation. Testing has shown that using a filter 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. 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.
November 2010
Page 6
C2648 Service Manual - Installation

Panel Removal
1. Locate and loosen the two screws at the front
edge of the top panel.
2. Pull the front panel out at the top until it clears
the top panel.
3. Lift the front panel up and off the machine.
4. Remove two screws from the front edge 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 loosen the screw holding each side
panel to the base.
7. Pull the side panel forward to release it from
the back panel.
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.
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 fittings.
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.
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 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).
November 2010
Page 7
C2648 Service Manual - Installation
6
5
Panel Removal
1

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
Configurations 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.
November 2010
Page 8
C2648 Service Manual - Installation
22.87"
17.15"
40.35"
dd
hd
rd
Remote Condenser
Located ABOVE Ice
Machine
Remote Condenser Located
BELOW Ice Machine
Condenser Distance &
Location Schematic
Max 35'
Max
15'

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 specification on
the prior page.
Meet all applicable building codes.
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 roofing contractor secure
the condenser to the roof.
November 2010
Page 9
C2648 Service Manual - Installation
Remote Condenser, Typical System Illustration
Remote
Condenser
Ice Machine
Power
Supply
Interconnecting
Tubing

Precharged Line Routing
Do not connect the precharged tubing until all
routing and forming of the tubing is complete. See
the Coupling Instructions for final connections.
1. Each set of pre-charged tubing lines contains a
1/2” diameter liquid line, and a 5/8” diameter
discharge line. Both ends of each line have quick
connect couplings, the end without access valves
goes to the ice maker.
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 roofing 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.
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 roofing contractor seal the
holes in the roof
per local codes
November 2010
Page 10
C2648 Service Manual - Installation
Minimize
tubing routed
outside of the
Best Practice: Coil
excess tubing inside
the building in a

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
Certified 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
remove any possible foreign matter.
2. Lubricate the inside of the couplings, especially
the O-rings, with refrigerant oil.
3. Position the fittings on the correct connections
on the condenser and ice machine.
•The discharge line goes to the remote
condenser fitting marked “discharge line”.
•The 1/2" liquid line goes to the remote
condenser fitting marked “liquid line”.
•The discharge line goes to the ice maker fitting
marked “discharge line”.
•The 1/2" liquid line goes to the ice maker fitting
marked “liquid line”.
Final Connections:
4a. Begin by tightening the couplings together by
hand until it is certain that the threads are properly
engaged.
4b. Then using two wrenches tighten the coupling
until it bottoms out or a definite increase in
resistance is felt.
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.
4c. Continue tightening the swivel nut until it
bottoms out or a very definite increase in
resistance is felt (no threads should be showing).
5. Use a marker or pen to 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.
6. After all connections have been made, and after
the king valve has been opened (do not open yet),
check the couplings for leaks.
November 2010
Page 11
C2648 Service Manual - Installation

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” flare nut
inlet water connection, and a 3/8” to 3/8” flare union
is supplied with the machine and can be used if
desired.
Water Filters Install a new cartridge if the filters
were used with a prior machine.
Drains
All models require drain tubing to be attached to
them. There is a single ¾” FPT drain fitting 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.
1. Connect water supply to water inlet fittings.
2. Connect drain tubing to drain fitting.
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.
November 2010
Page 12
C2648 Service Manual - Installation
Water Supply and Drain Connections
Water Inlet
Connection
Potable
Water
Reservoir
Drain,
Venting
Required
Optional
Water
Filters
Floor Drain

Electrical
The machine is not supplied with a power cord, one
must either be field 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.
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 field 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.
November 2010
Page 13
C2648 Service Manual - Installation
Electrical Connections
Power
Supply
Remote
Condenser
Electrical
Connection Ground Screw
Power Supply -
add Strain Relief
Fan Motor Wire -
add Strain Relief

Final Check List:
1. Is the unit located indoors in a controlled
environment?
2. Is the condenser 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 filter cartridges been
replaced?
16. Have all required kits and adapters been
properly installed?
November 2010
Page 14
C2648 Service Manual - Installation

Initial Start Up
1. Remove front and left side panels. Check
machine for any packing or wires rubbing
moving parts. Note location of control board
in upper left corner of the machine’s front.
2. Switch on the electrical power to the machine.
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.
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 flow
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.
4. During the Freeze cycle move each curtain to
confirm 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. Note:
Moving the curtain during the Freeze cycle has
no affect on unit operation.
5. 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 first 6 minutes of freeze.
6. 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.
7. 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 refill the reservoir. After a few
seconds the purge valve closes but the inlet water
valve continues to fill the reservoir. Harvest
continues until the ice is released as a unit from
each evaporator and forces each curtain to open.
When all curtains have opened and re-closed the
controller returns the unit to a freeze cycle.
8. 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.
9. Determine the water purge setting from the
table on the next page. If desired, change the
setting to accommodate the local water
conditions.
10. Return the panels to their normal positions and
secure them to the machine.
11. Instruct the user in the operation of the
machine and its maintenance requirements.
12. Fill out and mail the warranty registration form.
Typical Ice Making Cycle Times (minutes)
Listed times are for clean machines. Cycle times at
startup will be longer until the system stabilizes.
November 2010
Page 15
C2648 Service Manual - Installation
Model
70oF. cond air
/
50oF. water
90oF. cond air
/
70oF. water
C2648R 11 - 13 13 - 15

Adjustments
Bridge Thickness - For A Service Tech Only
1. Push and hold Off till the machine stops.
2. Remove evaporator cover.
3. Remove left most 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.
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
setting
1-
Minimum
2-
Moderate 3 - Standard 4- Heavy
5-
Maximum A - Automatic
Water
Type
RO water
or
equivalent
Factory
Setting for
typical water
High TDS
water
Any with
conductivity not
less than 10
microSiemens/cm
To set:
1. Switch the machine OFF by holding the Off
button in until a number or the letter Ashows
on the display.
2. Press and release the On button repeatedly
until the number on the display corresponds to
the desired setting.
3. Press and release the Off switch again to
return to the normal control state.
November 2010
Page 16
C2648 Service Manual - Installation
Ice Thickness Sensor
Ice Bridge Thickness Measurement
Too Big Too Small
Just Right,
Small Cube
1/8 - 3/16"
bridge
Just Right,
Medium Cube

Use and Operation
Once started, the ice machine will automatically
make ice until the bin 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
Lack of
water -
Yellow - - - Time to de-scale and
sanitize
Blinking
Yellow - - - In Cleaning mode
Light off No power Switched off Normal Normal
All Blinking Unit remotely locked out – check with leasing company
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 filter cartridges need to be changed.
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.
November 2010
Page 17
C2648 Service Manual - Installation
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.

Switch Panel Area
There is standard front access to two switches – on
and off.
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
process and then resume ice making.
Control Options
There are two optional, field 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
knob and an additional indicator light to the right of
the four standard indicator lights. 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), where it fills the bin until the standard bin
control shuts the machine off. See the kit’s
instructions for complete details.
Rotate the adjustment post to the desired ice level.
The machine will fill 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.
The actual distance between the highest point of
the ice may be closer or further away, depending
upon the angle of the ice.
November 2010
Page 18
C2648 Service Manual - Installation
Adjust Ice Level
L
o
w
e
r
Bin
Full
Maximum Ice
Minimum Ice
Level
Power Water
OffDe-Scale
On
02-4294-01 Rev. A.
Adjust Ice Level
L
o
w
e
r
Bin
Full
Status
Vari-Smart Control Area

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. When removing ice, tap the groups of
ice with an ice scoop to separate them into smaller
units.
Heat
Most heat is exhausted at the remote condenser.
The ice machine head should not generate
significant 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.
In addition, during the harvest cycle each harvest
assist solenoid will click twice as it pushes the ice
out and returns to its normal position. 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.
November 2010
Page 19
C2648 Service Manual - Installation
SmartBoard Advanced Feature Control™
See Instructions for Available Features
34 SEL
02-4293-01 Rev A.
ENTER
ESC

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 specifically 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 blue Harvest button.
Machine will go thru a manual harvest of 3
minutes then shut off.
3. Remove all ice from the bin.
4. Push and release the yellow Clean button.
5. Wait until the Purge Valve light goes out, then
pour 24 ounces of Scotsman Clear 1 Scale
remover into the water reservoir.
6. Operate the machine for at least 10 minutes.
7. Push and release the yellow Clean button
again.
8. Operate the machine for at least 20 minutes,
then push the red Off button.
9. Check for scale, repeat steps 3 thru 7 if scale
is still evident.
10. Disconnect pump hoses from water
distributors.
11. Depress snaps and pull water distributors
forward and out of the machine. Remove
covers and inspect for scale. Remove any
remaining scale. Set aside.
12. Remove evaporator covers, set aside.
13. Remove right side panel and liner, set aside.
14. Remove all three curtains. Set aside.
15. Twist counterclockwise and lift water pumps up
and tip to one side.
16. Remove front water reservoir cover plate, set
aside.
17. Remove sump cover and water level sensor,
set sump cover aside.
18. Pull water reservoir forward; tip up and out of
the machine.
19. Mix a locally approved sanitizer solution. If
approved, mix one ounce of liquid household
November 2010
Page 20
C2648 Service Manual - Installation
Ice machine cleaner
contains acids. Acids can
cause burns.
If concentrated cleaner
comes in contact with skin,
purge with water. If
swallowed, do NOT induce
vomiting. Give large amounts
of water or milk. Call
Physician immediately. Keep
out of the reach of children.