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 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.

Contents							Control Button Use (from standby). . . . . .			Page 39
Installation: Product Specifications. . . . .					.	Page 3	Diagnostics. . . . . . . . . . . . . . .			Page 40
Model Number Description. . . . . . . .					.	Page 4	Diagnostics. . . . . . . . . . . . . . .			Page 41
Product Description, Electrical Requirements.					.	Page 5	Diagnostics. . . . . . . . . . . . . . .			Page 42
Condenser and Ice Machine Layouts. . . .					.	Page 6	Test Procedures - Sensors . . . . . . . . .			Page 43
Water. .	. . . . . . . . . . . . . . .					Page 7	Ice Thickness Sensor . . . . . . . . . . .			Page 44
Panel Removal . . . . . . . . . . . . .						Page 8	Water Level Sensor. .		. . . . . . . . . .	Page 45
Precharged Line Routing. . . . . . . . .						Page 11	Temperature Sensors . . . . . . . . . . .			Page 46
Coupling Instructions.. . . . . . . . . .						Page 12	Water Pumps . .	. . . . .	. . . . . .	Page 47
Plumbing Requirements . . . . . . . . .					.	Page 13	Purge valve. . . . . . . . . . . . . . .			Page 48
Electrical. . . . . . . . . . . . . . .					.	Page 14	Compressor contactor.		. . . . . . . . . .	Page 49
Final Check List:. . . . . . . . . . . .					.	Page 15	Pressure switch.	. . . . . . . . . . . .		Page 50
Initial Start Up. . . . . . . . . . . . .					.	Page 16	Liquid Line Solenoid . . . . . . . . . . .			Page 51
Adjustments. . . .		. . . .	. . . . . .			Page 17	Inlet Water Solenoid Valve. . . . . . . . . . . . . . . . .			Page 52
Use and Operation . . . . . . . . . . .					.	Page 18	Harvest Assist. . . . . . . . . . . . . .			Page 53
Switch Panel Area. .			. . . . . . . . . .			Page 19	Reservoir Removal. . . . . . . . . . . .			Page 54
Options and Other Information . . . . . . .						Page 20	Controller Differences. . . . . . . . . . .			Page 55
Cleaning, Sanitation and Maintenance. . . .						Page 21	Thermistor Values. . . . . . . . . . . .			Page 56
Remote condenser and other maintenance . .						Page 23	Performance Information.. . . . . . . . .			Page 57
What to do before calling for service. .				. . .		Page 24	Repair Procedures. . . .		. . . . . . . . . . . . . . . . . . .	Page 58
Overall System Types:			. . . . . . . . . .			Page 25	Harvest Assist. . . . . . . . . . . . . .			Page 59
Controller Information. . . . . . . . . .					.	Page 26	Ice thickness sensor. . . . . . . . . . .			Page 60
Controller Information. . . . . . . . . .					.	Page 27	Contactor or Controller . . . . . . . . . .			Page 61
How It Works. .		. . . . . . . . . . . .				Page 28	Curtain or Curtain Switch. . . . . . . . . . . . . . . . . .			Page 62
Electrical Sequence - Remote Cooled. .				. . . . .	.	Page 29	Purge Valve or Water Level Sensor. . . . . . . . . .			Page 63
Electrical Component Details . . . . . . .					.	Page 30	Water pumps. .	. . . . . . . . . . . .		Page 64
Electrical Component Details . . . . . . .					.	Page 31	Evaporator.. . . . . . . . . . . . . .			Page 65
Component Indicator Light Table . . . . .				.		Page 32	Compressor.. . . . . . . . . . . . . .			Page 66
Refrigeration. . . . . . . . . . . . . .						Page 33	Thermostatic Expansion Valve . . . . . . .			Page 67
Refrigeration Schematic . . . . . . . . .					.	Page 34
Water System . . . . . . . . . . . . .					.	Page 35
Control Operation . . . . . . . . . . . .						Page 36
Control Safeties.. . . . . . . . . . . .						Page 37
Restarts.	. . . . . . . . . . . . . . .					Page 38

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C2648 Prodigy and Prodigy Plus Service Manual

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	40oF.	100oF.
temperature
Water pressure	20 psi	80 psi

Remote condenser

	Minimum	Maximum
Air temperature	-20oF.	120oF.
Power Supply
	Minimum	Maximum
208-230 volt	198 volts	253 volts
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, field charging is not required.

This product cannot be stacked.

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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 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-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 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.

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C2648 Prodigy and Prodigy Plus Service Manual

Product Description, Electrical Requirements

Ice Machine	Model	Electrical	Use	Minimum	Maximum	Suggested
Dimensions			condenser	Circuit	Fuse* Size	Fuse* Size
w” x d” x h”				Ampacity
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

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.

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C2648 Prodigy and Prodigy Plus Service Manual

Condenser and Ice Machine Layouts

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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 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.

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 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.

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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.

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.

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.

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).

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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

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.

		dd
		40.35"
			Condenser Distance &
		Remote Condenser Located	Location Schematic
	Max 35’	ABOVE Ice Machine
22.87"
hd
17.15"	Max 15’
rd
		Remote Condenser Located
		BELOW Ice Machine

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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 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.

Remote

Condenser

Interconnecting Tubing

Ice Machine

Power Supply

Remote Condenser, Typical System Illustration

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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 final connections.

Important: CONFIRM that the correct line set

(RTEL prefix) 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 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.

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 roofing contractor seal the holes in the roof per local codes

Best Practice: Coil excess tubing inside the building in a

Minimize tubing horizontal coil. routed outside

of the controlled space

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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 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

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 fittings on the correct connections on the condenser and ice machine.

•Connect the 5/8” discharge line to the remote condenser fitting.

•Connect the 1/2" liquid line to the remote condenser fitting.

•Connect the discharge line to the ice maker fitting.

•Connect the 1/2" liquid line to the ice maker fitting.

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 definite 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).

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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” 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.

Water Inlet

Connection

Potable Water

Supply

Reservoir Drain,

Venting Required

Optional Water

Filters

Floor Drain

Water Supply and Drain Connections

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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 field installed or the machine hardwired.

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 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.

Power

Supply

Electrical Connections

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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 filter cartridges been replaced?

16.Have all required kits and adapters been properly installed?

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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 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.

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 first 6 minutes of freeze.

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 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.

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.

Typical Ice Making Cycle Times (minutes)

Model	70oF. cond air /	90oF. cond air /
	50oF. water	70oF. water
C2648R	11 - 13	13 - 15

Listed times are for clean machines. Cycle times at startup will be longer until the system stabilizes.

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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.

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.

1/8 to 3/16” bridge

Too Big	Just Right,	Just Right,	Too Small
	Small Cube	Medium Cube

Ice Bridge Thickness Measurement

Ice Thickness Sensor

purge	1 - Minimum	2 - Moderate	3 - Standard	4 - Heavy	5 - Maximum	A - Automatic
setting
Water	RO water or		Factory		High TDS	Any with
Type	equivalent		Setting for		water	conductivity not
			typical water			less than 10
						microSiemens/cm
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.

3.Press and release the Off switch again to return to the normal control state.

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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	Lack of water	-
		shutdown or,
		if making ice,
		temperature sensor
		failure
Yellow	-	-	-	Time to de-scale
				and sanitize
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 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.

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),

o	w
	e		Bin
L		r
			Full
Adjust Ice Level
02-4294-01 Rev. A.

where it fills 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, 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

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.

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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 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.

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 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 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.

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.

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, flush 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 flushing cycle and then shut off, displaying O. This will take 35 minutes.

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.

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.

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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