Scotsman C0530SR-1 User manual

Introduction
This technical manual covers the Prodigy line, excluding the Eclipse remote low side models.
All models except Eclipse are shipped with an Installation and User's manual, which can be
referred to separately. General installation information is included in this manual.
September 2006 Page 1
Table of Contents
Model Number Description ......... page 2
Water .................... page 3
General Installation - Air or Water Cooled . page 4
Water purge setting ............ page 8
General Installation - Remote ....... page 9
Pre-Charged Tubing Coupling Connections page 17
Adjustments ................ page 20
Prodigy Cuber System Information..... page 21
Controller Information ........... page 22
How It Works - Air Cooled ......... page 24
How It Works - Water Cooled ....... page 25
How It Works - Remote........... page 26
Electrical Sequence - Air or Water Cooled. page 27
Electrical Sequence - Remote Cooled . . . page 29
Remote Schematics ............ page 31
Electrical Component Details ....... page 32
Refrigeration ................ page 35
Water System ............... page 36
Control Operation ............. page 37
Control Safeties .............. page 38
Restarts................... page 39
Control Button Use (from standby) ..... page 40
Control Button Use - continued ...... page 41
Diagnostics – Air Cooled .......... page 42
Low Ice Making Capacity - Air Cooled . . . page 45
Makes Excessive Noise - Air Cooled.... page 46
Diagnostics - Water Cooled ........ page 47
Low ice Making Capacity - Water Cooled . page 50
Makes Excessive Noise - Water Cooled . . page 51
Diagnostics - Remote Air Cooled ..... page 52
Low Ice Making Capacity - Remote .... page 55
Makes Excessive Noise - Remote ..... page 56
Test Procedures - Sensors......... page 57
Ice Thickness Sensor ........... page 58
Water Level Sensor ............ page 59
Temperature Sensors ........... page 60
Test Procedures - Loads .......... page 61
Compressor Electrical Chart ........ page 62
Test Procedures - Loads .......... page 63
Technical Information ........... page 71
Heat Load & Condenser Water GPM . . . page 72
Controller Differences ........... page 73
Thermistor Values ............. page 74
Performance Data ............. page 75
Performance Data - Remotes ....... page 85
Wiring Diagrams .............. page 93
Repair Procedures ............. page 101
Refrigeration Removal and Replacement Procedures
.......................page 109
Optional add-on control information .... page 114

Model Number Description
Example:
•C0530SA-1A
•C= cuber
•05= nominal ice capacity in 100s of pounds
•30= nominal width of cabinet. Other sizes are 22 and 48.
•S= Cube size. S=small or half dice cube. M=medium or full dice cube
•A=Condenser type. A=air cooled. W=water cooled. R = Remote
•-1=Electrical code. -1=115 volts. -32=208-230 single phase. -3=208-230 three phase.
-6=230 50 Hz
•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 the cube size, condenser type and voltage differences are not
critical to the information listed there.
Scotsman reserves the right to make design changes and/or improvements at any time.
Specifications and design are subject to change without notice.
September 2006 Page 2

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.
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 has the capability to automatically vary the amount of water purgeed
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.
September 2006 Page 3

General Installation - Air or Water Cooled
Location Limitations:
The product is designed to be installed indoors, in a controlled environment. Air cooled models
discharge very warm air into the room out the back. Space must be allowed at the left side and
back for air intake and discharge. Water cooled models discharge warm water into the
building’s drain. Space needs to be provided on both sides and above for service access.
Space Limitations
Note: Although the machine will function, ice capacity of air cooled machines will be significantly reduced
with minimal clearance at the sides, back and top. Some space is recommended for service and
maintenance purposes on all models.
6" of space at the sides and back are required for adequate operation. To get the most
capacity, locate the machine away from heat producing appliances and heating ducts.
22 and 30 inch wide models: Airflow is in the left side, out the back (as viewed from the front).
48 inch wide models: Air flow is in the front and left side and out the back.
Environmental Limitations
Minimum Maximum
Air temperature 50oF. 100oF.
Water temperature 40oF. 100oF.
Water pressure 20 psi 80 psi
Power supply – acceptable voltage ranges
Minimum Maximum
115 volt model 104 volts 126 volts
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 or workmanship. It does
not cover maintenance, corrections to installations, or situations when the machine is operated
in circumstances that exceed the limitations printed above.
September 2006 Page 4

Plumbing Requirements
All models require connection to cold, potable water. A hand actuated valve within site of the
machine is required. Air cooled models have a single 3/8” FPT inlet water connection; a 3/8”
FPT to 3/8” male flare adapter is supplied with the machine and can be used if desired.
Water cooled models have the same inlet fitting plus an additional 3/8” FPT condenser inlet
water connection.
Water Filters
If connecting to water filtration, filter only the water to the reservoir, not to the condenser.
Install a new cartridge if the filters were used with a prior machine.
All models require drain tubing to be attached to them. Air cooled models have a single ¾”
FPT drain fitting in the back of the cabinet. Water cooled models have the same fitting plus an
additional ½” 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.
Note: This NSF listed model has a 1" anti-back flow air gap between the water inlet tube end and the
highest possible reservoir water level, no back flow device is required for the potable water inlet.
Drain Tubing:
Use rigid drain tubes and route them separately – do not Tee into the bin’s drain and, if water
cooled, do not Tee the condenser drain into the reservoir or bin 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 out the vent..
Horizontal runs of drain tubing need a ¼” fall per foot of run for proper draining.
Follow all applicable codes.
September 2006 Page 5
General Installation - Air or Water Cooled

Electrical
See the spec sheet or User's Manual for Minimum Circuit Ampacity or Maximum Fuse Size
ratings.
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.
Electrical connections are made inside the junction box in the back panel of the ice machine.
Follow all applicable local, state and national codes.
September 2006 Page 6
General Installation - Air or Water Cooled

Adjustments
Ice 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.
Shut machine off.
Access the ice thickness sensor.
Check gap between metal tip and evaporator
grid. Small cube standard gap is 3/16 inch,
medium cube standard gap is 7/32 inch. To
set, place a 3/16" (small cube) or 7/32"
(medium cube) drill bit between sensor tip
and evaporator to check. Adjust gap using
adjustment screw.
Restart unit and check ice bridge. Repeat as
needed.
September 2006 Page 7
General Installation - Air or Water Cooled
Ice Thickness Sensor Adjustment
Gap
Adjustment
Screw
Side View of Evaporator and Ice Thickness
Sensor
Ice Thickness Sensor
Evaporator
Gap
Ice Bridge Thickness Measurement
1/8-3/16"
bridge
Note: Indentations may be deeper on C0322 and C0330
1/8" indentation
Too Big Too Small
Just Right

Water purge setting
The water purge is factory set to the Automatic setting. The setting can be changed to one of 5
manual settings or placed on automatic. The purge setting shows in the Code Display.
purge
setting
1-
Minimum
2-
Moderate
3-
Standard
4-
Heavy
5-
Maximum A - Automatic
Water
Type
RO water
or
equivalent,
TDS less
than 35
Low TDS
non-RO
water
Setting
for typical
water
High
TDS
water
Very high
TDS water,
greater than
256
Any with
conductivity
not less than
10
microSiemens/
cm
To set:
Switch the machine OFF by holding the Off button in until a number or the letter Ashows on
the display.
Press and release the On button repeatedly until the number on the display corresponds to the
desired setting.
Press and release the Off switch again to return to the normal control state.
September 2006 Page 8

General Installation - Remote
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
Environmental Limitations, remote condenser
Minimum Maximum
Air temperature -20oF. 120oF.
Power Supply
Minimum Maximum
115 volt model 104 volts 126 volts
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.
September 2006 Page 9

Product Description and Electrical Requirements
- See spec sheet or User's Manual for Minimum Circuit Ampacity or Maximum Fuse SIze
Dimensions
w”xd”xh” Model Electrical Use condenser
22 x 24 x 23 C0522SR-1 115/60/1 ERC111-1
same same same ERC211-1**
30 x 24 x 23 C0530SR-1 115/60/1 ERC111-1
same same same ERC211-1**
same C0630SR-32 208-230/60/1 ERC311-32
30 x 24 x 29 C0830SR-32 208-230/60/1 ERC311-32
same C0830SR-3 208-230/60/3 ERC311-32
same C1030SR-32 208-230/60/1 ERC311-32
same C1030SR-3 208-230/60/3 ERC311-32
48 x 24 x 29 C1448SR-32 208-230/60/1 ERC311-32
same C1448SR-3 208-230/60/3 ERC311-32
same C1848SR-32 208-230/60/1 ERC611-32
same C1848SR-3 208-230/60/3 ERC611-32
same C2148SR-32 208-230/60/1 ERC611-32
same C2148SR-3 208-230/60/3 ERC611-32
** ERC211 has two circuits, when two C0522s or C0530s are connected to it, fan motor relay
kit KCMR120 must be used to control the fan motor.
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.
Table notes: Medium cube models have the same electrical characteristics as Small. Series
revision code omitted. All the listed condensers include a headmaster valve.
September 2006 Page 10
General Installation - Remote

Central Condenser 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).
•Includes a headmaster valve for discharge pressure control. Headmaster kit available for
certain MAC condensers, kit number is RCKCME6GX.
•Fan motor on all the time or controlled to be on whenever the ice machine is operating.
•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” 25’ 40’ 75’
RTE10 RTE25 RTE40 RTE75
No additional refrigerant is required. Note: Refrigerant charge is supplied with the ice machine.
January 2009 Page 11
General Installation - Remote

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.
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.
September 2006 Page 12
General Installation - Remote

Remote Condenser Location
Use the following for planning the placement of the condenser relative to the ice machine - see
illustration on the following page.
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.
Operating a machine with an unacceptable configuration is misuse and will void the
warranty.
September 2006 Page 13
General Installation - Remote

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.
September 2006 Page 14
General Installation - Remote
22.87"
17.15"
40.35"
hd
rd
dd
Remote
Condenser
Locate ABOVE
Remote
Condenser
Locate BELOW
Condenser
Distance &
Location
Max
35'
Max
15'

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 3/8” diameter liquid line, and a 1/2” 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 1 3/4”. 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.
Note brazing requires a nitrogen purge.
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
September 2006 Page 15
General Installation - Remote

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 1/2" discharge line (schrader valve end) goes to the remote condenser fitting marked
“discharge line”.
•The 3/8" liquid line (schrader valve end) goes to the remote condenser fitting marked
“liquid line”.
•The 1/2" discharge line goes to the ice maker fitting marked “discharge line”.
•The 3/8" 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 receiver valve has been opened (open
at Initial Start Up), check the couplings for leaks.
September 2006 Page 16
General Installation - Remote

Pre-Charged Tubing Coupling Connections
September 2006 Page 17
Inspect couplings, wipe clean and lubricate
both parts with polyolester refrigerant oil.
Hand tighten to be sure threads are properly
engaged.
Use two wrenches and continue tightening the
couplings. As the diaphragms being to pierce,
the couplings will be harder to turn. Be sure
only the swivel nut is rotated.
Continue tightening until the swivel nut feels
like it is tight, then go to the next step. No
threads will be seen when the couplings are
tight.
After the swivel nut feels like it is tight, mark
the nut and the panel. Then tighten one
quarter turn more. That ensures that there is
a brass-to-brass joint inside the coupling.

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” FPT inlet water connection, a 3/8” FPT to 3/8” male
flare adapter 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.
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.
Connect water supply to water inlet fitting.
Note: This NSF listed model has a 1" anti-back flow air gap between the potable water inlet tube end and
the highest possible reservoir water level, no back flow device is required.
Connect drain tubing to drain fitting.
Route the drain tubing to building drain. Follow local codes for drain air gap.
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.
September 2006 Page 18
General Installation - Remote

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 in the ice maker electrical junction box.
Electrical connections are made inside the junction box in the back panel of the ice machine.
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.
Attach the remote condenser fan motor wires to the wires in the junction box tagged “fan motor
leads”.
Install field supplied strain reliefs per code. Attach a ground wire to the ground connection in
the junction box.
Check voltage when complete.
Return the junction box cover to its original position and secure with the original screws.
Follow all applicable local, state and national codes.
September 2006 Page 19
General Installation - Remote

Adjustments
Bridge Thickness - For the Service Tech
Only
Push and hold Off till the machine stops.
Access ice thickness sensor.
Check gap between metal tip and evaporator
grid. Small cube standard gap is 3/16 inch,
medium cube standard gap is 7/32 inch. To
set, place a 3/16" (small cube) or 7/32"
(medium cube) drill bit between sensor tip
and evaporator to check. Adjust gap using
adjustment screw.
Restart unit and check ice bridge. Repeat as
needed
Caution: Do not make the bridge too thin or the machine will not harvest properly. Bridge thickness
adjustments are not covered by warranty.
Water purge setting
The water purge is factory set to Automatic. 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,
TDS less
than 35
Low TDS
non-RO
water
Setting
for typical
water
High
TDS
water
Very hHigh
TDS water,
greater
than 256
Any with
conductivity
not less than 10
microSiemens/
cm
To set:
Switch the machine OFF by holding the Off button in until a number or the letter Ashows on
the display.
Press and release the On button repeatedly until the number on the display corresponds to the
desired setting.
Press and release the Off switch again to return to the normal control state.
September 2006 Page 20
Gap
Adjustment
Screw