Scotsman SCCG30MA1SU, SCCP30MA1SU, DCE33A1SSD, DCE33PA1SSD User Manual

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SCCG50 & SCCP50 Service Manual
Introduction:
This ice machine is the result of Scotsman’s decades of experience as an industry leader in the design and manufacture of both commercial and residential ice machines.
This manual includes the information needed to install, start up and maintain the ice machine. Note any Caution or Warning indicators, as they provide notice of potential hazards. Keep this manual for future reference.
Table of Contents
Specifications .......................................... Page 2
Cabinet Layout ......................................... Page 3
Air flow ............................................. Page 4
Water Quality .......................................... Page 5
Door Covering .......................................... Page 6
Door Panel Attachment ..................................... Page 7
Custom Panel .......................................... Page 8
Door swing change ....................................... Page 9
Installation: Water & Drain ................................... Page 10
Gravity Drain .......................................... Page 11
Electrical ............................................ Page 12
Cube Size Adjustment ..................................... Page 13
Harvest Time Adjustment .................................... Page 14
Control Settings ......................................... Page 15
Use ............................................... Page 16
How to clean the condenser and winterize. ........................... Page 17
How to remove scale from the ice making system. ....................... Page 18
System Information ....................................... Page 19
Water System .......................................... Page 20
Components .......................................... Page 21
Controller ............................................ Page 22
Performance Information .................................... Page 23
Refrigeration System ...................................... Page 24
Thermistor Values ........................................ Page 25
Service Diagnosis ........................................ Page 26
Service Diagnosis ........................................ Page 27
Removal and Repair ...................................... Page 28
Removal and Repair ...................................... Page 29
Removal and Repair - Cabinet Removal ............................ Page 30
Refrigeration Service ...................................... Page 32
June 2008
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Specifications
SCCG50 & SCCP50
Service Manual
This ice machine is designed to be used indoors, in a controlled environment. It can be used in a wide variety of environmental conditions, but there are limits. Use outside of the listed limitations is misuse and will void the warranty.
Air temperature limits:
The ice machine will operate adequately within the limits, but functions best in temperatures between 70 and 80 degrees F.
Minimum – 50 degrees F. (10oC)
Maximum – 100 degrees F. (38oC)
Water temperature limits:
Minimum – 40 degrees F. (4.5oC)
Maximum – 100 degrees F. (38oC)
Water pressure limits:
Minimum – 20 psi (1.4 bar)
Maximum – 80 psi (5.5 bar)
Because the ice machine is making a food product, the water supply to the ice machine must be potable, or fit for human consumption.
Electrical
115 volt, 60 Hz. Plug into dedicated 15 amp circuit.
Power consumption: 275 - 400 Watts. Varies during Freeze and Harvest cycles.
Voltage limits:
Minimum - 104 volts
Maximum – 126 volts
Options:
Door Panel kits: from Scotsman for attachment to the machine, or a custom panel can be made.
Kit Number Panel Finish Handle Finish
KDFW White White
KDFWS White Stainless Steel
KDFB Black Black
KDFBS Black Stainless Steel
KDFS Stainless Steel Stainless Steel
Kickplate Extension: In some situations the leg levelers will be extended enough to become visible. A kit to extend the kickplate over the legs is KKPF.
Cabinet Stability installations it may be prudent to add a bracket that secures the back of the cabinet to a wall. That kit number is KATB.
Drain Conversion:
A gravity drain model can be converted to a drain pump model by installing a drain pump kit. The drain pump kit consists of a drain pump, wiring harness and associated tubing. The kit number is A39462-021.
Warranty Information
Warranty information is supplied separately from this manual. Refer to it for coverage. In general, the warranty covers defects in materials or workmanship and does not cover corrections of installation errors or maintenance.
Finished door panels are available
: In some free standing
Models: There are six models, all air cooled:
SCCP50M-1WU – Pump model, white cabinet
SCCG50M-1WU – Gravity drain model, white cabinet
SCCP50M-1BU – Pump model, black cabinet
SCCG50M-1BU – Gravity drain model, black cabinet
SCCP50M-1SU – Pump model, stainless cabinet
SCCG50M-1SU – Gravity drain model, stainless cabinet
July 2008
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SCCG50 & SCCP50
14 7/8"
AIR IN
AIR OUT
.75
SHEET METAL DOOR FRONT
.63 MIN. CABINET DOOR
29 1/4"
1"
LEG ADJUSTMENT
(4) PLACES
33 3/8" MIN. 34 3/8" MAX.
22"
2 3/4"
4"
3 3/4"
1 1/2"
2 1/2"
3 1/4"
7 3/8"
115 V
POWER CORD
DRAIN FLEXIBLE TUBING 3/8 I.D. PUMP MODEL (INCLUDED) 5/8 I.D. GRAVITY MODEL (NOT INCLUDED)
POTABLE WATER INLET
1/4" COMPRESSION FITTING
3 7/8"
20 3/8"
FLOOR DRAIN
ACCESS HOLE
Service Manual
Cabinet Layout
June 2008
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Air flow
The machine takes in room temperature air at the lower right front and forces warm air out the lower left front. Restricting the airflow will adversely affect the ability of the ice machine to make ice.
SCCG50 & SCCP50
Service Manual
Control Panel
Warm Air Out
Scotsman Ice Systems are designed and manufactured with the highest regard for safety and performance. They meet or exceed the standards of agencies like U.L.
Scotsman assumes no liability or responsibility of any kind for products manufactured by Scotsman that have been altered in any way, including the use of any parts and/or other components not specifically approved by Scotsman.
Air Intake
Ice Making Area
Scotsman reserves the right to make design changes and/or improvements at any time.
Specifications and designs are subject to change without notice.
June 2008
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SCCG50 & SCCP50 Service Manual
Water Quality
All water, including potable water supplied by municipalities, contains some impurities or minerals. Water absorbs impurities from the air as rain and/or as it flows through the ground. Some of the impurities are solid particles, these are known as suspended solids, and a fine particle filter will remove them. Other impurities are chemically bonded to the water molecules, and cannot be filtered out, these are called dissolved solids.
Ice made by this machine will have a lower mineral content than the water it was made from. This is due to the method of making ice. Purer water will freeze first in the ice making molds. The reason for this is that anything dissolved in water lowers the water’s freezing temperature. This concentrates most of the impurities in the ice machine water reservoir where they may form hard deposits known as scale. The machine dilutes the concentration of minerals by over-filling the reservoir during the harvest cycle (with the excess water flowing down the drain). s. Between 2 and 4 pints of water flow into the unit each cycle. Between 1 and 3.5 pints of that rinses the reservoir and goes down the drain.
Some impurities will inevitably remain, and will stick to the parts in the machine, and will cause malformed ice cubes. Eventually, built up mineral
scale can shorten machine life.
To keep the machine operating properly, these impurities or minerals will have to be regularly dissolved by an acid cleaning, using Scotsman Ice Machine Scale Remover. Directions for this may be found in the section under cleaning.
Filters and Treatment
In general, it is always a good idea to filter the water. A water filter, if it is of the proper type, can remove taste and odors as well as particles. Some methods of water treatment for dissolved solids include reverse osmosis, and polyphosphate feeders.
RO Water
This machine can be supplied with Reverse Osmosis water, but the water conductivity must be no less than 10 microSiemens/cm. A reverse
osmosis system should include post treatment to satisfy the R.O. water’s potential aggressiveness. Deionized water is not recommended.
Because water softeners exchange one mineral for another, softened water may not improve water conditions when used with ice machines. Where water is very hard, softened water could result in white, mushy cubes that stick together.
If in doubt about the water, contact a local point of use water specialist for recommendations on water treatment.
Installation Overview
The ice machine must:
be connected to cold, potable water
be connected to a drain
be connected to the proper power supply
be able circulate air through the vents at the front.
Note: Do not build in so that the door is recessed.
June 2008
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Door Covering
SCCG50 & SCCP50
Service Manual
Door Panel
The ice machine is supplied without a conventional door covering so it can be decorated to the user’s preference. Scotsman offers several coverings including white, black and stainless steel. In addition, a custom built panel can be placed onto the door.
Door Panel Attachment
To attach a Scotsman supplied panel:
Note: If door swing is to be changed, it must be done before panel is attached.
The panel will be held on by 6 sheet metal screws and 2 machine screws.
1. Remove the gasket and retain for later use.
2. If the door panel is stainless steel, remove any plastic covering the stainless steel panel.
Custom Panel
A custom panel of wood or other material not exceeding 15 lb can be attached to the door. Attachment is from the ice side of the door. Holes are provided in the door for this purpose.
See instructions in information packet to create and attach a custom panel:
3. Place the panel onto the outside of the door, and secure it to the door using two machine screws, located at the left center and right center.
4. Fasten the panel to the door using the 6 sheet metal screws. In the hinge area, use the outermost screw holes.
5. Place the covers over the hinge areas, and secure each cover to the door using a sheet metal screw.
6. Insert hole plug over screw installed in step 5.
7. Return the gasket to its original position.
June 2008
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SCCG50 & SCCP50 Service Manual
Door Panel Attachment
Use Upper Hole at the
Top
Gasket
Scotsman Door Panel
Machine
Screw
Hole Plug
Use Lower Hole at the
Bottom
Cover
June 2008
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Custom Panel
Ø 1/8"
TYP. (10)
13/16"
13/32"
4 1/8"
6 25/32"
14 11/16"
13 31/64"
13/32"
8 1/4"
13 9/16"
14 7/8"
30 3/8" 29 3/8"
{Centerline}
SCCG50 & SCCP50
Service Manual
A custom panel of wood or other material not exceeding 15 lb can be attached to the door. Attachment is from the ice side of the door. Holes are provided in the door for this purpose.
To create and attach a custom panel:
Panel width: 14 7/8”
Panel height: Between 29 3/8” and 30 3/8”.
Panel thickness: 5/8” to ¾”
1. Measure overall height of cabinet
opening where ice machine will be (floor to bottom of countertop edge).
2. Determine desired kickplate
space (from bottom of door to floor). This could be equal to the adjacent cabinet’s kickplate space or another space the user wants.
3. Subtract kickplate space from
cabinet opening.
10. Mount panel to door using wood screws or supplied panel mounting screws.
Note: When installed Ice machine must be adjusted for height to position top of door to desired clearance.
4. Subtract 1/8 or more for clearance
space between top of door and bottom of countertop edge from cabinet opening. This is the maximum door length.
5. Cut panel to width.
6. Cut panel to length (cabinet space
- kickplate space - top clearance =
length).
7. Determine top of panel.
8. Mark hole locations using drawing
on the back of these instructions. Drawing assumes top of panel will be flush with top of door. Measure hole locations from the top of the panel.
9. Drill pilot holes for wood screws.
Use drill stop to prevent drilling through the panel.
June 2008
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SCCG50 & SCCP50 Service Manual
Door swing change
Note: Prior models had separate hinge brackets and different directions to change swing.
Moving the hinges allows the door to open from either the left or right side. Change swing before attaching door panel.
To change:
1. Remove innermost screw holding each hinge to cabinet, loosen the other.
Remove
Loosen
4. Remove hole plugs or screws from unit's new hinge locations, set aside.
5. Move screws loosened in step 1 to opposite location.
6. Install screws or plugs removed in step 4 to the unit's original hinge location to fill the holes.
7. Remove the upper hinge from the door and move it to the door's opposite side, bottom location. Secure using the original screws.
Note: If door panel is attached, it must be removed to access hinge screws and to reverse handle position.
8. Remove the original lower hinge and move it to the door's opposite side, upper location. Secure using the original screws.
9. Install pocket covers and hole plugs onto door.
2. Slide door to the side and remove from cabinet.
Plug
3. Remove plug and hinge pocket covers from door.
Pocket Cover
10. Attach the door to the cabinet using the original screws.
Installation Notes
Built In Situations: If a finished floor is to be installed in the area after the ice machine has been
built in, shims the expected thickness of the floor should be installed under the unit to keep the machine level with the planned floor level.
Installations on a slab: Use a pump model and pump the water to the point of drainage. Pump models will pump 1 story (10 feet) high.
Installations over a crawl space or basement: Either gravity drain or pump model units may be used, if there is not enough room behind the machine for a drain/waste receptacle, the drain will have to be below the floor.
Note: When installed in a corner, the door swing may be limited due to handle contact with the wall
or cabinet face.
Note: There are either plugs or screws in the holes where the hinges will mount. They must be moved.
January 2012
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SCCG50 & SCCP50 Service Manual
Door swing change
The door can be attached to open with hinges on the left or right using new brackets shipped loose in the ice bin. Retain all screws for re-use.
To change:
1. Remove innermost screw holding each hinge to cabinet, loosen the other.
2. Slide hinges to the side and remove door from cabinet. Remove screws loosened in step 1 from both hinge brackets.
3. Remove two screws securing top panel to back, pull top panel back and remove from cabinet.
4. Remove two screws at the top and lift the door hinge bracket out of the cabinet. Replace with the one supplied loose with the machine. Fasten it to the cabinet using the original screws.
Door Hinge Bracket
Note: If door panel is attached, it must be removed to access hinge screws and to reverse handle position.
8. Remove the upper hinge and move it to the door's opposite side, bottom location. Secure using the original screws.
9. Remove the original lower hinge and move it to the door's opposite side, upper location. Secure using the original screws.
10. Install a screw removed in step 2 in outermost hole of upper and lower cross braces.
11. Attach the door to the cabinet using the original screws.
12. Return kickplate and front service panel to their original positions and attach to the cabinet using the original screws.
Installation Notes
Built In Situations: If a finished floor is to be installed in the area after the ice machine has been built in, shims the expected thickness of the floor should be installed under the unit to keep the machine level with the planned floor level.
5. Return the top panel to the cabinet and fasten it with the original screws.
6. Remove kickplate and front service panel.
7. Remove two front screws and two bottom screws holding the bottom cross brace to the cabinet. Replace the brace with the one supplied loose with the machine. Secure it using the original screws.
Screw Below
Installations on a slab: Use a pump model and pump the water to the point of drainage. Pump models will pump 1 story (10 feet) high.
Installations over a crawl space or basement: Either gravity drain or pump model units may be used, if there is not enough room behind the machine for a drain/waste receptacle, the drain will have to be below the floor.
Note: When installed in a corner, the door swing may be limited due to handle contact with the wall or cabinet face.
September 2011
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Installation: Water & Drain
SCCG50 & SCCP50
Service Manual
Water Supply, all models: The recommended water supply tubing is ¼ inch OD copper. Stainless steel flex or reinforced PVC tube may also be used. Install an easily accessible shut-off valve between the supply and the unit. This shut-off valve should not be installed behind the unit.
Note: Do not use self-piercing type valves.
1. Remove the front service panel.
Screw
Securing
Front Service
Panel
Water Inlet Connection, located at the FRONT of the machine. Do NOT connect to tubing at the back.
Drains
There are two types of ice machine models, one that drains by gravity and one that has an internal drain pump.
Drain Pump Model drain installation
1. Locate the coil of 3/8” ID plastic drain tubing secured to the back of the unit.
2. Route the plastic drain tube from the back of the unit to the drain connection point.
2. Route the tubing through the right hole in the back to the inlet water solenoid valve inlet.
3. Install a compression fitting on the tubing and connect to the inlet of the solenoid.
Drain Tube, Route to building drain
IMPORTANT NOTE: Often an air gap is required by local codes between the ice maker drain tube and the drain receptacle.
Water Inlet Tube (field supplied)
Back View, Drain Pump Model
September 2011
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SCCG50 & SCCP50 Service Manual
Gravity Drain
Caution: Restrictions in the drain system to the machine will cause water to back up into the ice storage bin and melt the ice. Gravity drain tubing must be vented, have no kinks and slope to the building drain. Air gaps are typically required by local code.
1. Place the ice machine in front of the installation
opening. Adjust leveling legs to the approximate height.
2. Remove the front service access panel and the
upper back panel.
Note: If you are connecting a gravity drain model and the drain opening has been located in the floor under the base pan according to the pre install specifications, follow steps 3 through 5 to drain the unit through the base. If not, proceed to step 6b.
3. Remove the clamp and barbed elbow and take
off the plastic cover in the base pan below the drain hose.
4. Connect a straight 5/8” barbed connector to the drain hose, securing with the clamp removed in step 4.
5. Cut an 8” piece of 5/8” ID X 7/8” OD tygon (clear plastic) tubing. Slide one end of the tube onto the outlet of the barbed connector and secure with a clamp. Leave the other end of the tube lying on the floor of the base pan until the unit is positioned over the floor drain.
6. Route the drain tube. Either a) Insert the drain tube through the base pan into the floor drain or b) Route the drain tube through the left hole in the lower back panel and connect to barbed elbow and secure with a clamp.
7. Reinstall the upper back panel.
8. Reinstall the service access panel. Level the unit.
Drain Hose
Drain Hose, Route to building drain
Barbed Elbow
Water Inlet Tube (field supplied)
Back View, Gravity Drain Model
June 2008
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Electrical
SCCG50 & SCCP50
Service Manual
The ice machine is supplied with a power cord. Do not remove the grounding pin from the cord’s plug. Do not use extension cords. Follow all codes. Connect the machine to its own 115 volt, 15 amp circuit.
1. If the electrical outlet for the ice maker is behind the unit, plug in the unit.
2. Position the unit in the installation opening.
3. Turn on the water supply. Make sure that the ice maker is plugged in and the power is on.
4. Slide unit into installation opening, paying careful attention to water supply and drain connections. Do not kink!
5. Pour a couple of quarts of water into the ice storage bin; on drain pump equipped machines the drain pump should start and water should pump out. Check for leaks.
6. Replace the service access panel.
7. Level the unit as needed.
Installation check list:
1. Has the unit been connected to the proper water supply?
2. Has the water supply be checked for leaks?
3. Has the unit been connected to a drain?
4. Has the drain been tested for flow and leaks?
5. Has the unit been connected to the proper electrical supply?
6. Has the unit been leveled?
7. Have all packing materials been removed from the machine?
8. Has the door covering been installed?
Initial Start Up
1. Turn on the water supply.
2. Switch on the electrical power.
3. Push and release the On/Off switch to start the machine. The Ice Making light next to the On/Off switch will glow Green.
Water will begin to flow into the unit. When the
4. reservoir is full, water will start to drain from the
machine. After a few minutes the compressor, water pump and fan motor will begin to operate and the first ice making cycle will have begun.
No adjustments are needed.
After about a half hour, ice will fall into the ice storage bin. The machine makes 24 cubes per batch. It is normal for the first batches of ice to melt, that continues until the bin has cooled. It will take 8 to 10 hours of continuous run time to fill the ice bin. When the bin is full of ice, the ice machine will shut off. It will automatically restart when the ice level falls, either from use or normal meltage.
June 2008
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SCCG50 & SCCP50 Service Manual
Cube Size Adjustment
The cube size can be adjusted by changing the amount of freeze cycle time. This is done by a button press sequence.
Note: There is only one correct cube size. See the illustrations.
To adjust cube size:
1. Shut the machine off: If it's off on bin full press and release the On/Off button once, switching the Ice Making light off. If the machine is making ice hold the On/Off button in until the Ice Making light is off.
2. Press and hold the Clean button for 5 seconds (light on), then release (light out)
Side Views of Cubes
Too Small, Adjust Cycle Longer
3. View the lights. Compare to the table below.
Cube Size Change Table
On/Off Water Clean
Default off off off
Add 1 minute on off off
Add 2 minutes off on off
Add 3 minutes off off on
Add 4 minutes on on on
- 1 minute flash off off
- 2 minutes off flash off
- 3 minutes off off flash
- 4 minutes flash flash flash
4. Select the amount of change.
5. Push and release the On/Off button until the correct light pattern is displayed.
Just Right
Too Large, Adjust Cycle Shorter
6. Push and release the Clean button to select that setting.
7. Push and release On/Off to return to ice making.
June 2008
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Harvest Time Adjustment
The harvest time can be adjusted so that all the ice harvests during the cycle, plus a few seconds extra. This is done by a button press sequence.
Note: Do not set harvest time shorter than the actual time it takes to release all the cubes.
To adjust Harvest Time:
1. Shut the machine off by holding the On/Off button in until it shuts off (Ice Making light off).
2. Press and hold the On button again for 5 seconds, then release (Ice Making light will switch off).
3. View the lights. Compare to the table below.
SCCG50 & SCCP50
Service Manual
Harvest Time Table
On/Off Water Clean
Default off off off
Add 10 seconds on off off
Add 20 seconds off on off
Add 30 seconds off off on
Add 40 seconds on on on
- 10 seconds flash off off
- 20 seconds off flash off
- 30 seconds off off flash
- 40 seconds flash flash flash
4. Select the amount of change.
5. Push and release the Clean button until the correct light pattern is displayed.
6. Push and release the On button to select that setting.
7. Push and release On/Off to return to ice making.
June 2008
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SCCG50 & SCCP50 Service Manual
Control Settings
Automatic water purge enable / disable
The control is set at the factory to automatically select the proper amount of water purge. If desired, that can be disabled, and a typical purge amount used.
To disable Automatic purge selection:
1. Press and hold the On/Off button until the unit shuts off. No lights should be on.
2. Press and hold the ON button for 5 seconds, then release.
3. Wait between 5 and 20 seconds, then repeat step 1. All lights will flash once.
To return to Automatic purge selection:
1. Press and hold the ON button for 5 seconds, then release.
2. Wait between 5 and 20 seconds, then repeat step 1. All lights will flash twice.
Manual Harvest - from the OFF or Standby Mode (powered but no lights are on)
1. Press and hold the Clean-Reset button for 5 seconds and release.
2. Wait between 5 and 20 seconds, then repeat step 1. All lights will flash once. The On/Off light will be on until harvest has timed out.
Reset time to clean indicator light
Press and hold the Clean-Reset button for 3 seconds.
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Use
No special instructions are needed for use. Just take as much ice as you need, the machine will replace it. A scoop is provided, and it can be stored in the machine using the loop of tubing on the right side as a holder.
The machine can be shut off anytime by just pushing and releasing the On/Off button. The machine will shut off at the end of the next cycle. To shut off immediately, push and hold the On/Off button in until the machine stops.
SCCG50 & SCCP50
Service Manual
What shouldn’t be done?
Never keep anything in the ice storage bin that is not ice. Objects like wine or beer bottles are not only unsanitary, but the labels can slip off and plug up the drain.
Never allow the machine to operate without regular cleaning. The machine will last longer if it is kept clean. Regular cleaning should happen at least once per year, and preferably twice. Some water conditions will dictate even more frequent cleaning of the ice making section, and some carpets or pets will dictate more frequent cleaning of the condenser.
Note: The Time to Clean light will switch ON after 6 months of use. It will remain ON until the ice making system is cleaned using the process on page 13.
Noise:
The ice machine is designed for quiet operation, but will make some noise during the ice making cycle. During a freezing cycle, it is normal to hear the fan moving air and the water pump circulating water. Ice hitting the bin or ice in the bin can be heard during harvest.
If ice making noise is objectionable, an appliance grade timer can be added to the power supply. Set the timer to turn the machine off at the time(s) of day when the noise is most objectionable.
Normal cubes are tapered cylinders. If the cubes
are ragged and mis-shaped, mineral scale must be
removed from the ice making system
Maintenance
There are 5 things to keep clean:
1. The outside cabinet & door.
2. The ice storage bin.
3. The condenser.
4. The ice making system.
5. The ice scoop.
How to clean the cabinet.
Wipe off any spills on the surface of the door and handle as they occur. If anything spilled on the door or gasket dries onto the surface, wash with soap and warm water to remove.
How to clean the ice storage bin.
The ice storage bin should be sanitized occasionally. It is usually convenient to sanitize the bin after the ice making system has been cleaned, and the storage bin is empty.
A sanitizing solution can be made of 1 ounce of household bleach and two gallons of hot (95
o
F.) water. Use a clean cloth and wipe the
115 interior of the ice storage bin with the sanitizing solution, pour some of the solution down the drain.
o
F. –
Allow to air dry.
June 2008
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SCCG50 & SCCP50 Service Manual
How to clean the condenser and winterize.
Condenser cleaning
The condenser is like the radiator on a car, it has fins and tubes that can become clogged with dirt and lint. To clean:
1. Remove the kickplate and front service panel.
2. Locate the condenser surface.
Winterizing
1. Clean the ice making system.
2. Open the door and push and release the On/Off
switch to turn the machine off.
3. Turn off the water supply.
4. Drain the water reservoir by removing the rubber
cap under the reservoir - it's near the back wall of the ice storage bin.
Rubber Cap
3. Vacuum the surface, removing all dust and lint.
Caution: Do not dent the fins.
4. Return the kickplate and front service panel to their original positions. Fasten them to the cabinet using the original screws.
5. Disconnect the incoming water line at the inlet
water valve.
6. Open the door, push and release the on/off
switch to turn the machine on.
7. Blow air through the inlet water valve; a tire
pump could do the job.
8. Drain pump models should have about 1/2
gallon of RV antifreeze (propylene glycol) poured into the ice storage bin drain.
Note: Automotive antifreeze must NOT be used.
9. Switch off and unplug the machine.
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How to remove scale from the ice making system.
1. Scoop out all of the ice, either discard it or save it in an ice chest or cooler.
9. Pour a gallon of hot (95
the bin to flush out the drain.
SCCG50 & SCCP50
Service Manual
o
F. – 115oF.) water into
2. Press and HOLD the On/off button in for 3 seconds until the Green light goes out.
3. Press and HOLD the both the Clean-Reset and On/Off buttons for 5 seconds. The Time to Clean light will blink on and off.
4. Pour 8 ounces of Scotsman Ice Machine Scale Remover (available from a local Scotsman Distributor or Dealer) into the ice machine reservoir.
10. Clean the bin liner of mineral scale by mixing
some ice machine scale remover and hot water, and using that solution to scrub the scale off of the liner.
11. Rinse the liner with hot water.
12. Sanitize the bin interior.
13. Replace the ice removed in step 1.
14. Push and release the On/Off button to restart
ice making.
The ice scoop should be washed regularly, wash it just like any other food container.
5. Operate the machine for about ½ hour.
6. Push and release the On/Off switch. The machine will begin to flush out the cleaning solution.
7. Operate the machine for another ½ hour.
8. Push and release the On/Off switch. The machine will stop the cleaning process.
Pour Scale Remover Here
June 2008
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SCCG50 & SCCP50 Service Manual
System Information
Overall:
Refrigerant: 8 oz R-134a
Compressor: Hermetic, 1300 BTUH, X HP
Condenser: Forced draft
Fan blade: 5 blade, 7 inch
Evaporator: Inverted, 24 cube cells. Copper
cups attached to continuous serpentine Metering device: Cap tube
Defrost method: Hot gas bypass with water
assist Spray method: 6 water jets
Water charge: 40 ounces
Water valve: 115 volt solenoid, .19 GPM
Water fill time: Varies with harvest time &
purge setting Spray pump: Pedestal type.
Drain pump: Magnetic drive, controlled by
pressure switch Purge method: Overflow standpipe
Control method: Electronic
Cycle control: Thermistor + timers
Freeze cycle timer: 10 minutes,+-4
Harvest cycle timer: 20 seconds,+-40
Cube size adjustment: Freeze timer change.
Harvest cycle adjustment: Harvest timer change
Bin control: Thermostat. Opens on temperature fall, Cut Out: 35 degrees F. Cut In 45 degrees F. Range is adjustable.
Electrical Components:
Compressor
Fan motor
Spray pump motor
Drain pump motor
Drain pump switch
Bin light - LED type
Bin light switch - magnetic reed
Inlet water solenoid valve
Hot gas valve
Transformer
Controller
Water sensor
Thermistor
Bin thermostat
Electrical Sequence:
A closed bin thermostat signals to the controller a need for ice. The controller checks for water, if water is needed , the controller opens the inlet water solenoid valve to fill the reservoir. The hot gas valve is open to equalize the system. When the reservoir is full, the compressor, fan motor, water pump are switched on. After 5 seconds the hot gas valve shuts and ice making begins.
Water is sprayed up into the inverted cup mold. As the water is cooled and ice begins to form in the cups, the temperature of the evaporator will fall.
The freeze cycle continues until the temperature of the thermistor attached to the evaporator outlet tube falls to about zero degrees F. At that point the controller starts a freeze cycle timer, whose default time is 10 minutes. At the end of the freeze cycle's timed portion the controller switches to the harvest cycle.
The harvest cycle begins with the controller stopping the water pump and fan motor. At the same time it opens the hot gas valve and the inlet water solenoid valve. The ice is released by the combination of discharge refrigerant gas entering the evaporator serpentine and warming up the copper, plus the inlet water that flows to the evaporator, floods across the plastic platen to warm it up and be pre-chilled for the next cycle. Ice cubes drop individually and harvest continues until the thermistor attached to the suction line warms up to about 50 degrees F. At that point a harvest timer starts, whose default time is 20 seconds. At the end of that time the harvest cycle ends and the freeze cycle restarts.
Bin control.
The machine's on and off modes are regulated by a bin thermostat. The cap tube for the bin thermostat is in the tube that holds the scoop. The machine will only begin ice making when the thermostat's contacts close. If the contacts re-open before the temperature of the evaporator drops below a preset point, the machine will stop. If the temperature is below that point when the contact s open, the machine will continue through a complete cycle and stop at the end of the harvest cycle.
September 2008
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Page 21
Water System
The controller uses a Water Sensor to check for the presence of water in the reservoir and to measure the conductivity of the water.
The water sensor consists of two stainless steel probes located in a holder next to the water pump.
The probes sense the conductivity of the water. The higher the mineral content of the water, the better it can conduct electricity. The control system is capable of sensing water as clean as 10 microSiemens/cm.
If the controller cannot sense water and the bin thermostat is closed the controller will power the inlet water solenoid valve to fill the reservoir. The water fill is timed. There is a maximum amount of time allowed from the time the controller turned on the inlet water valve until the water sensor signals to the controller. That time is 2 1/2 minutes. If water is not sensed within 2 1/2 minutes, the controller will not proceed with an ice making cycle. Instead it will blink the Water light and try filling the reservoir in 20 minutes.
SCCG50 & SCCP50
Service Manual
Evaporator
Pump
Reservoir Drain
Freeze Cycle Water Schematic
Reservoir water dilution
The process of making ice from circulating water causes the pure water to freeze first, because it freezes at the warmest temperature. The remaining water will develop an increasing concentration of minerals. If that mineral concentration were allowed to continue, eventually the ice machine would become coated with mineral scale.
To combat the mineral build up, the reservoir water is diluted with fresh water every cycle. The controller adds enough water to fill the reservoir and extra water to overfill it. The extra water drains out through the standpipe in the reservoir.
The controller keeps the inlet water solenoid valve open until the evaporator temperature set point is reached, plus some extra time. The extra time is either pre-set or automatically determined by the controller.
Standpipe
Inlet Water Solenoid Valve
Harvest Cycle Water Schematic
November 2008
Page 20
Page 22
SCCG50 & SCCP50 Service Manual
Components
Model and
Serial Tag
Location
Scoop and Thermostat Bracket
Evaporator Platen
Control Panel, Bin Light and Curtain
Evaporator and Controller
June 2008
Page 21
Condenser and Bin ThermostatInlet Water Solenoid Valve
Page 23
Controller
SCCG50 & SCCP50
Service Manual
High
Voltage
Connector
Evaporator
Thermistor
Bin Thermostat
Comp
Water Sensor
Water
Bin Light
Hot Gas
Fan
Power
Power Supply Connector
The controller is located at the front of the unit, under the top panel.
It is powered by a 12 volt transformer. It has 5 indicator lights:
Compressor - Light is ON if compressor is powered
Water - Light is ON if inlet water solenoid valve is powered
Hot Gas - Light is ON when Hot Gas Valve is powered
Fan - Light is ON when Fan motor is powered
Power - Light is ON when power is connected to controller
Control Panel Ribbon
Control Safeties:
No Water. If the Water Sensor cannot detect
water, and the inlet water solenoid valve has been on for the maximum fill time, the controller will stop all action and wait 20 minutes to re-try water fill. During this time the Check Water light on the control panel will be blinking,
Maximum Freeze Time. If the freeze cycle should extend to 60 minutes, the controller will automatically put the machine into a Harvest cycle.
Maximum Harvest Time. 6 minutes
Time between restarts. After the machine has
operated and then turned off, the controller will not restart the machine for four minutes.
June 2008
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Page 24
SCCG50 & SCCP50 Service Manual
Performance Information
Freeze Cycle, Minutes
100 37-38 36-37 34-35 32-33 31-32 29-30
90 36-37 35-36 33-34 31-32 30-31 28-29
80 36-35 32-33 30-31 28-29 27-28 26-27 Water Temperature
Harvest Cycle, Seconds
Water Temperature
70 32-33 28-29 27-28 25-26 23-24 22-23
60 27-28 25-26 24-25 22-23 20-21 19-20
50 20-21 19-20 18-19 17-18 16-17 15-16
40 18-19 17-18 16-17 15-16 15-16 15-16
80 -100 55-60 60-70 70-80 80-90 90-100 110-115
70 - 80 65-75 70-80 75-85 85-95 95-105 115-120
50 - 70 70-80 75-85 85-95 125-135 140-150 160-170
40 - 50 100-120 115-125 130-140 150-170 180-200 210-230
Air Temperature
100 90 80 70 60 50
Air Temperature
100 90 80 70 60 50
Total Cycle, Minutes
100 38-39 37-38 36-37 34-35 33-34 31-32
90 38-39 36-37 35-36 33-34 32-33 30-31
80 37-38 33-34 31-32 30-31 29-30 27-28 Water Temperature
Ice per cycle: 1 lb
Water drained / cycle: Varies by harvest cycle length and purge setting. Typical amounts are @ 70/50 = 52 oz. @ 90/70 = 13 oz
Compressor amps: 2.6 - 3.2
70 33-34 29-31 28-29 26-27 25-26 24-25
60 29-30 27-28 25-26 24-25 22-23 21-22
50 21-22 20-21 19-20 19-20 19 18-19
40 20-21 19-20 19 18-19 19 19-21
100 90 80 70 60 50
Air Temperature
June 2008
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Page 25
Refrigeration System
Suction Pressure
-10
0
10
20
30
40
50
60
70
Time
PSIG
Discharge Pressure
50
60
70
80
90
10 0
110
12 0
13 0
14 0
15 0
Time
PSIG
SCCG50 & SCCP50
Service Manual
June 2008
Page 24
Page 26
SCCG50 & SCCP50 Service Manual
Thermistor Values
Deg. F · Ohms Deg. F · Ohms Deg. F. · Ohms Deg. F. Ohms Deg. F. · Ohms
0····85325 1
····82661 2····80090 3····77607 4····75210 5····72896 6····70660 7····68501 8····66415 9····64400 10 · · · 62453 11 · · · 60571 12 · · · 58752 13 · · · 56995 14 · · · 55296 15 · · · 53653 16 · · · 52065 17 · · · 50529 18 · · · 49043 19 · · · 47607 20 · · · 46217 21 · · · 44872 22 · · · 43571 23 · · · 42313 24 · · · 41094 25 · · · 39915 26 · · · 38774 27 · · · 37669 28 · · · 36600 29 · · · 35564 30 · · · 34561 31 · · · 33590 32 · · · 32649 33 · · · 31738 34 · · · 30855 35 · · · 30000 36 · · · 29171 37 · · · 28368 38 · · · 27589 39 · · · 26835 40 · · · 26104 41 · · · 25395 42 · · · 24707 43 · · · 24041 44 · · · 23394 45 · · · 22767 46 · · · 22159 47 · · · 21569 48 · · · 20997 49 · · · 20442 50 · · · 19903 51 · · · 19381
52 · · · 18873 S3 · · · 18381 54 · · · 17903 55 · · · 17439 56 · · · 16988 57 · · · 16551 58 · · · 16126 59 · · · 15714 60 · · · 15313 61 · · · 14924 62 · · · 14546 63 · · · 14179 64 · · · 13823 65 · · · 13476 66 · · · 13139 67 · · · 12812 68 · · · 12494 69 · · · 12185 70 · · · 11884 71 · · · 11592 72 · · · 11308 73 · · · 11031 74 · · · 10763 75 · · · 10502 76 · · · 10247 77 · · · 10000 78 · · · 9760 79 · · · 9526 80 · · · 9299 81 · · · 9077 82 · · · 8862 83 · · · 8652 84 · · · 8448 85 · · · 8250 86 · · · 8056 87 · · · 7868 88 · · · 7685 89 · · · 7507 90 · · · 7333 91 · · · 7164 92 · · · 6999 93 · · · 6839 94 · · · 6683 95 · · · 6530 96 · · · 6382 97 · · · 6238 98 · · · 6097 99 · · · 5960 100 · · 5826 101 · · 5696 102 · · 5569 103 · · 5446
104 · · 5325 105 · · 5208 106 · · 5093 107 · · 4981 108 · · 4872 109 · · 4766 110 · · 4663 111 · · 4562 112 · · 4463 113 · · 4367 114 · · 4273 115 · · 4182 116 · · 4093 117 · · 4006 118 · · 3921 119 · · 3838 120 · · 3757 121 · · 3678 122 · · 3601 123 · · 3526 124 · · 3452 125 · · 3381 126 · · 3311 127 · · 3243 128 · · 3176 129 · · 3111 130 · · 3047 131 · · 2985 132 · · 2924 133 · · 2865 134 · · 2807 135 · · 2751 136 · · 2696 137 · · 2642 138 · · 2589 139 · · 2537 140 · · 2487 141 · · 2438 142 · · 2390 143 · · 2343 144 · · 2297 145 · · 2252 146 · · 2208 147 · · 2165 148 · · 2123 149 · · 2082 150 · · 2042 151 · · 2003 152 · · 1965 153 · · 1927 154 · · 1890 155 · · 1855
156 · · 1819 157 · · 1785 158 · · 1752 159 · · 1719 160 · · 1687 161 · · 1655 162 · · 1624 163 · · 1594 164 · · 1565 165 · · 1536 166 · · 1508 167 · · 1480 168 · · 1453. 169 · · 1427 170 · · 1401 171 · · 1375 172 · · 1350 173 · · 1326 174 · · 1302 175 · · 1279 176 · · 1256 177 · · 1234 178 · · 1212 179 · · 1190 180 · · 1169 181 · · 1149 182 · · 1129 183 · · 1109 184 · · 1090 185 · · 1071 186 · · 1052 187 · · 1034 188 · · 1016 189 · · 998 190 · · 981 191 · · 965 192 · · 948 193 · · 932 194 · · 916 195 · · 901 196 · · 885 197 · · 871 198 · · 856 199 · · 842 200 · · 828 201 · · 814 202 · · 800 203 · · 787 204 · · 774 205 · · 761 206 · · 749 207 · · 737
208 · · 724 209 · · 713 210 · · 701 211 · · 690 212 · · 679 213 · · 668 214 · · 657 215 · · 646 216 · · 636 217 · · 626 218 · · 616 219 · · 606 220 · · 597 221 · · 587 222 · · 578 223 · · 569 224 · · 560 225 · · 551 226 · · 543 227 · · 534 228 · · 526 229 · · 518 230 · · 510 231 · · 502 232 · · 495 233 · · 487 234 · · 480 235 · · 472 236 · · 465 237 · · 458 238 · · 451 239 · · 444 240 · · 438 241 · · 431 242 · · 425 243 · · 419 244 · · 412 245 · · 406 246 · · 400 247 · · 394 246 · · 389 249 · · 383 250 · · 377
June 2008
Page 25
Page 27
SCCG50 & SCCP50
Service Manual
Service Diagnosis
No Ice
Problem Likely Cause Probable Solution
No power to unit Power disconnected
No power to controller Transformer open Replace transformer
Control panel open Switch failure Test ribbon cable, see page 32
Shut down on maximum water fill time - water light flashing
Very long freeze cycle
Water shut off Restore water supply
Water leak Check curtain, sump
Dirty condenser Clean condenser
Restricted location, intake air too hot or blocked
Evaporator thermistor not sensing properly
Spray jets dirty
Inlet water valve leaks through during freeze
Low on refrigerant Check cube formation,
Check breaker or fuse. Reset or replace, restart and check
Eliminate restriction, have machine moved
Check thermistor
Remove spray platform and clean spray jets
Check inlet water valve
Cannot make ice
Check for bleed thru from missing /
Connected to hot water
Spray pump not pumping Check pump motor
Fan motor not turning
Pump hose disconnected Check hose
Very low on refrigerant
Compressor not operating
Hot gas valve leaks through during freeze
Compressor inefficient
broken check valve in building water supply
Check fan motor, check fan blade, check controller for voltage output
Add access valve, add refrigerant as a test. If unit makes ice, find and correct leak.
Check compressor start components, check PTCR resistance and temperature
Check compressor voltage
Check compressor windings
Check hot gas valve for hot outlet during freeze
Check compressor amp draw, if low and all else is correct, change compressor
January 2012
Page 26
Page 28
SCCG50 & SCCP50 Service Manual
Service Diagnosis
Makes excessive noise
Problem Likely Cause Probable Solution
Fan blade vibrates
Compressor vibrates Mounting loose Check mounting
Water pump vibrates Pump bearings worn Replace pump
Panels vibrate Mounting screws loose Tighten screws
Makes ice, does not harvest
Problem Likely Cause Probable Solution
Ice wrong size Environment changed Adjust cube size
Little heat to evaporator
Makes poor quality ice
Blade is bent Replace fan blade
Fan motor mount is broken Replace motor mount
Check voltage to coil when unit is
Hot gas valve does not open
Water temperature very low Adjust harvest time
Fan motor does not stop Check voltage, replace controller
in harvest, check controller indicator light.
Problem Likely Cause Probable Solution
Spray pattern poor Spray jets dirty Clean jets
Runs out of water Water leaking from reservoir Correct leak
High TDS water supply Groundwater supply Treat water
Makes ice, but melts rapidly
Problem Likely Cause Probable Solution
Restricted drain Gravity drain hose has air block Check for kinks or traps
Pooled water in bin
No Response from Control Panel Switches
Test membrane switch panel, see page 32.
Pump model switch not starting pump
Check / replace switch
January 2012
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Page 29
Removal and Repair
SCCG50 & SCCP50
Service Manual
Bin Thermostat
1. Disconnect electrical power.
Electrical Shock Hazard.
Disconnect electrical power before beginning removal
2. Remove service panel.
3. Remove back panel.
Note: If unit is built in it must be pulled out to change the bin thermostat.
4. Pull cap tube out from the back of the ice storage bin and cap tube holder.
5. Remove two screws and the bin thermostat contact section from its mounting bracket.
9. Reverse to reassemble.
Curtain
1. Shut unit off.
2. Loosen both thumbscrews holding curtain bracket to freezing chamber.
3. Pull out and remove curtain with bracket from ice machine.
4. Reverse to reassemble.
Spray Platform
1. Remove curtain.
2. Lift spray platform up until it disconnects from its fitting.
3. Pull forward and remove from the ice machine.
4. Reverse to reassemble.
6. Disconnect two wires from the bin thermostat contact section and remove the thermostat from the ice machine.
7. Reverse to reinstall.
Inlet Water Solenoid Valve
1. Disconnect electrical power.
2. Remove service panel.
3. Shut water supply OFF.
4. Disconnect inlet water supply tube from inlet water solenoid valve.
5. Unplug wire harness from valve coil.
6. Remove two screws holding valve to chassis.
7. Squeeze hose clamp larger and push away from solenoid valve outlet.
Water Pump
1. Remove spray platform
2. Remove back panel.
Note: If unit is built in it must be pulled out to change the water pump.
3. Disconnect power and ground wires from pump motor.
4. Rotate pump body CW and lift up to remove it.
5. Reverse to reassemble.
8. Pull hose from outlet of valve.
June 2008
Page 28
Page 30
SCCG50 & SCCP50 Service Manual
Removal and Repair
Evaporator Thermistor
Note: If unit is built in it must be pulled out to change the evaporator thermistor.
Electrical Shock Hazard.
Disconnect electrical power before beginning removal
1. Shut machine off. If unit was making ice, manually harvest the ice.
2. Disconnect electrical power.
3. Remove top panel.
4. Remove cover from controller box.
5. Disconnect thermistor wire from controller.
6. Locate thermistor sensor, it is attached to the suction line, just above the accumulator and is covered with insulation tape. Remove the insulation.
5. Remove screws holding transformer to controller box and pull transformer up and out of the ice machine.
6. Reverse to reassemble.
Controller
Note: If unit is built in it must be pulled out to change the controller.
1. Disconnect electrical power.
2. Remove top panel
3. Remove controller box cover.
4. Unplug all connections.
5. Remove screws holding controller to housing, and lift controller from unit.
Note: To avoid damaging the controller, touch the metal chassis of the unit prior to touching the replacement controller.
6. Reverse to reassemble.
Control Panel
7. Disconnect sensor bulb from suction line (it's held on with a metal clip).
8. Remove thermistor from ice machine.
9. Reverse to reassemble. It is very important that the bulb be re-insulated.
Transformer
Note: If unit is built in it must be pulled out to change the transformer.
1. Disconnect electrical power.
2. Remove top panel.
3. Remove controller cover.
4. Unplug leads from transformer.
June 2008
1. Disconnect electrical power.
2. Remove top panel
3. Remove controller box cover.
4. Unplug ribbon cable connection.
5. Push control panel away from the front of the machine. Begin at the ribbon cable attachment point.
Note: Control panel is held on by adhesive and the adhesive is thinnest at the cable point.
6. Separate control panel from controller box and remove from the ice machine.
7. Reverse to reassemble.
Page 29
Page 31
Removal and Repair - Cabinet Removal
SCCG50 & SCCP50
Service Manual
Certain components require the removal of the cabinet for repair access.
1. If the machine is in a freeze mode, perform a manual harvest.
2. Remove all ice.
3. Drain reservoir.
4. Remove service panel and kick plate.
5. Remove back panel.
6. Disconnect electrical power.
Electrical Shock Hazard.
Disconnect electrical power before beginning removal
12. Remove curtain & hanger.
13. Locate elbows where water flows onto the evaporator platen.
Clip
Inlet
Elbow
7. Disconnect water and drain tubing.
8. Remove door.
9. Remove top panel.
10. Remove controller box cover.
11. Disconnect thermistor from controller, pull wire back to suction line.
Thermistor
Connector
14. Pull clip up. Push inner elbow back and rotate it until it points straight up, then push it back through the hole in the back of the freezing compartment.
Inlet
Elbow
Inner Elbow
15. Pull water inlet elbow out of inner elbow.
June 2008
Page 30
Page 32
SCCG50 & SCCP50 Service Manual
18. Remove two screws holding freezing compartment brace to cabinet, lift brace up.
Brace
23. Lift bin assembly off the base.
Note: Prop evaporator assembly up. A 3' length of 3/4" PVC tubing with one end inserted into the cup mold and the other against the base will hold it up.
The hot gas valve, fan motor, condenser and compressor are now exposed for service.
19. Lift evaporator platen up and tilt back enough for bin assembly to clear the base.
Air Baffle
20. Remove air baffle.
21. Unplug 7 wire harness connector (at back of bin).
22. Remove 1 screw at each corner of the base. Chassis Shown in Front of Bin Assembly
June 2008
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Page 33
Refrigeration Service
SCCG50 & SCCP50
Service Manual
This ice machine use R-134a type refrigerant. There are specific rules for handling that refrigerant.
To check for system pressures, add a field supplied clamp-on type service valve as a temporary means of system access. After diagnosis and before final repair, replace the clamp-on type valve with valves that are brazed onto the process tubes of the system.
Use a low flow of dry nitrogen when brazing on the system.
Install a new filter drier when replacing a refrigeration component or after a refrigerant leak repair.
Evacuate the system to at least 300 microns and use a micron gauge to measure the evacuation level.
Weigh in the nameplate charge. The machine is critically charged and a partial ounce mis-charge will affect performance.
Membrane Switch
Unplug and check connector pins (left side from front is pin 1), read about 10 ohms when activating the button, and OL when not pressing the button: Pin 2-3 On/Off Switch; 4-3 Clean Reset Switch
Bin Thermostat Altitude Adjustment Table
Altitude
1000 11 CW
2000 31 CW
3000 52 CW
4000 72 CW
5000 92 CW
6000 111 CW
7000 128 CW
Degrees Rotation to Turn Adjustment Screw
January 2012
Page 32
Page 34
SCCG30 & SCCP30 Service Manual
Introduction:
This ice machine is the result of Scotsman’s decades of experience as an industry leader in the design and manufacture of both commercial and residential ice machines.
This manual includes the information needed to install, start up and maintain the ice machine. Note any Caution or Warning indicators, as they provide notice of potential hazards. Keep this manual for future reference.
Table of Contents
Specifications .......................................... Page 2
Cabinet Layout ......................................... Page 3
Air flow ............................................. Page 4
Water Quality .......................................... Page 5
Door Covering .......................................... Page 6
Door Panel Attachment ..................................... Page 7
Custom Panel .......................................... Page 8
Door swing change ....................................... Page 9
Installation: Water & Drain ................................... Page 10
Gravity Drain .......................................... Page 11
Electrical ............................................ Page 12
Cube Size Adjustment ..................................... Page 13
Harvest Time Adjustment .................................... Page 14
Control Settings ......................................... Page 15
Use ............................................... Page 16
How to clean the condenser and winterize. ........................... Page 17
How to remove scale from the ice making system. ....................... Page 18
System Information ....................................... Page 19
Water System .......................................... Page 20
Components .......................................... Page 21
Controller ............................................ Page 22
Performance Information .................................... Page 23
Refrigeration System ...................................... Page 24
Thermistor Values ........................................ Page 25
Service Diagnosis ........................................ Page 26
Service Diagnosis ........................................ Page 27
Removal and Repair ...................................... Page 28
Removal and Repair ...................................... Page 29
Removal and Repair - Cabinet Removal ............................ Page 30
Refrigeration Service ...................................... Page 32
September 2009
Page 1
Page 35
Specifications
SCCG30 & SCCP30
Service Manual
This ice machine is designed to be used indoors, in a controlled environment. It can be used in a wide variety of environmental conditions, but there are limits. Use outside of the listed limitations is misuse and will void the warranty.
Air temperature limits:
The ice machine will operate adequately within the limits, but functions best in temperatures between 70 and 80 degrees F.
Minimum – 50 degrees F. (10oC)
Maximum – 100 degrees F. (38oC)
Water temperature limits:
Minimum – 40 degrees F. (4.5oC)
Maximum – 100 degrees F. (38oC)
Water pressure limits:
Minimum – 20 psi (1.4 bar)
Maximum – 80 psi (5.5 bar)
Because the ice machine is making a food product, the water supply to the ice machine must be potable, or fit for human consumption.
Options:
Door Panel kits:
Finished door panels are available from Scotsman for attachment to the machine, or a custom panel can be made.
Kit Number Panel Finish Handle Finish
KDFS Stainless Steel Stainless Steel
Drain Conversion:
A gravity drain model can be converted to a drain pump model by installing a drain pump kit. The drain pump kit consists of a drain pump, wiring harness and associated tubing. The kit number is A39462-021.
Warranty Information
Warranty information is supplied separately from this manual. Refer to it for coverage. In general, the warranty covers defects in materials or workmanship and does not cover corrections of installation errors or maintenance.
Electrical
115 volt, 60 Hz. Plug into dedicated 15 amp circuit.
Power consumption: 400-180 Watts. Varies during Freeze and Harvest cycles.
Voltage limits:
Minimum - 104 volts
Maximum – 126 volts
Models: There are six models, all air cooled:
SCCPA30M-1SU – Pump model, stainless cabinet
SCCGA30M-1SU – Gravity drain model, stainless cabinet
September 2009
Page 2
Page 36
SCCG30 & SCCP30
14 7/8"
AIR IN
AIR OUT
.75
SHEET METAL DOOR FRONT
.63 MIN. CABINET DOOR
29 1/4"
1"
LEG ADJUSTMENT
(4) PLACES
33 3/8" MIN. 34 3/8" MAX.
22"
2 3/4"
4"
3 3/4"
1 1/2"
2 1/2"
3 1/4"
7 3/8"
115 V
POWER CORD
DRAIN FLEXIBLE TUBING 3/8 I.D. PUMP MODEL (INCLUDED) 5/8 I.D. GRAVIT Y MODEL (NOT INCLUDED)
POTABLE WATER INLET
1/4" COMPRESSION FITTING
3 7/8"
20 3/8"
FLOOR DRAIN
ACCESS HOLE
Service Manual
Cabinet Layout
September 2009
Page 3
Page 37
Air flow
The machine takes in room temperature air at the lower right front and forces warm air out the lower left front. Restricting the airflow will adversely affect the ability of the ice machine to make ice.
SCCG30 & SCCP30
Service Manual
On/Off Switch
Ice Making Area
Warm Air Out
Scotsman Ice Systems are designed and manufactured with the highest regard for safety and performance. They meet or exceed the standards of agencies like U.L.
Scotsman assumes no liability or responsibility of any kind for products manufactured by Scotsman that have been altered in any way, including the use of any parts 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 designs are subject to change without notice.
Air Intake
September 2009
Page 4
Page 38
SCCG30 & SCCP30 Service Manual
Water Quality
All water, including potable water supplied by municipalities, contains some impurities or minerals. Water absorbs impurities from the air as rain and/or as it flows through the ground. Some of the impurities are solid particles, these are known as suspended solids, and a fine particle filter will remove them. Other impurities are chemically bonded to the water molecules, and cannot be filtered out, these are called dissolved solids.
Ice made by this machine will have a lower mineral content than the water it was made from. This is due to the method of making ice. Purer water will freeze first in the ice making molds. The reason for this is that anything dissolved in water lowers the water’s freezing temperature. This concentrates most of the impurities in the ice machine water reservoir where they may form hard deposits known as scale. The machine dilutes the concentration of minerals by over-filling the reservoir during the harvest cycle (with the excess water flowing down the drain). s. Between 2 and 4 pints of water flow into the unit each cycle. Between 1 and 3.5 pints of that rinses the reservoir and goes down the drain.
Some impurities will inevitably remain, and will stick to the parts in the machine, and will cause malformed ice cubes. Eventually, built up mineral
scale can shorten machine life.
Filters and Treatment
In general, it is always a good idea to filter the water. A water filter, if it is of the proper type, can remove taste and odors as well as particles. Some methods of water treatment for dissolved solids include reverse osmosis, and polyphosphate feeders.
RO Water
This machine can be supplied with Reverse Osmosis water. A reverse osmosis system should
include post treatment to satisfy the R.O. water’s potential aggressiveness. Deionized water is not recommended.
Because water softeners exchange one mineral for another, softened water may not improve water conditions when used with ice machines. Where water is very hard, softened water could result in white, mushy cubes that stick together.
If in doubt about the water, contact a local point of use water specialist for recommendations on water treatment.
Installation Overview
The ice machine must:
To keep the machine operating properly, these impurities or minerals will have to be regularly dissolved by an acid cleaning, using Scotsman Ice Machine Scale Remover. Directions for this may be found in the section under cleaning.
September 2009
Page 5
be connected to cold, potable water
be connected to a drain
be connected to the proper power supply
be able circulate air through the vents at the front.
Note: Do not build in so that the door is recessed.
Page 39
Door Covering
SCCG30 & SCCP30
Service Manual
Door Panel
The ice machine is supplied without a conventional door covering so it can be decorated to the user’s preference. Scotsman offers several coverings including white, black and stainless steel. In addition, a custom built panel can be placed onto the door.
Door Panel Attachment
To attach a Scotsman supplied panel:
Note: If door swing is to be changed, it must be done before panel is attached.
The panel will be held on by 6 sheet metal screws and 2 machine screws.
1. Remove the gasket and retain for later use.
2. If the door panel is stainless steel, remove any
plastic covering the stainless steel panel.
Custom Panel
A custom panel of wood or other material not exceeding 15 lb can be attached to the door. Attachment is from the ice side of the door. Holes are provided in the door for this purpose.
See instructions in information packet to create and attach a custom panel:
3. Place the panel onto the outside of the door,
and secure it to the door using two machine screws, located at the left center and right center.
4. Fasten the panel to the door using the 6 sheet
metal screws. In the hinge area, use the outermost screw holes.
5. Place the covers over the hinge areas, and
secure each cover to the door using a sheet metal screw.
6. Insert hole plug over screw installed in step 5.
7. Return the gasket to its original position.
September 2009
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SCCG30 & SCCP30 Service Manual
Door Panel Attachment
Use Upper Hole at the
Top
Gasket
Scotsman Door Panel
Machine
Screw
Hole Plug
Use Lower Hole at the
Bottom
Cover
September 2009
Page 7
Page 41
Custom Panel
Ø 1/8"
TYP. (10)
13/16"
13/32"
4 1/8"
6 25/32"
14 11/16"
13 31/64"
13/32"
8 1/4"
13 9/16"
14 7/8"
30 3/8" 29 3/8"
{Centerline}
SCCG30 & SCCP30
Service Manual
A custom panel of wood or other material not exceeding 15 lb can be attached to the door. Attachment is from the ice side of the door. Holes are provided in the door for this purpose.
To create and attach a custom panel:
Panel width: 14 7/8”
Panel height: Between 29 3/8” and 30 3/8”.
Panel thickness: 5/8” to ¾”
1. Measure overall height of cabinet
opening where ice machine will be (floor to bottom of countertop edge).
2. Determine desired kickplate
space (from bottom of door to floor). This could be equal to the adjacent cabinet’s kickplate space or another space the user wants.
3. Subtract kickplate space from
cabinet opening.
10. Mount panel to door using wood screws or supplied panel mounting screws.
Note: When installed Ice machine must be adjusted for height to position top of door to desired clearance.
4. Subtract 1/8 or more for clearance
space between top of door and bottom of countertop edge from cabinet opening. This is the maximum door length.
5. Cut panel to width.
6. Cut panel to length (cabinet space
- kickplate space - top clearance =
length).
7. Determine top of panel.
8. Mark hole locations using drawing
on the back of these instructions. Drawing assumes top of panel will be flush with top of door. Measure hole locations from the top of the panel.
9. Drill pilot holes for wood screws.
Use drill stop to prevent drilling through the panel.
September 2009
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SCCG30 & SCCP30 Service Manual
Door swing change
Note: Prior models had separate hinge brackets and different directions to change swing.
Moving the hinges allows the door to open from either the left or right side. Change swing before attaching door panel.
To change:
1. Remove innermost screw holding each hinge
to cabinet, loosen the other.
Remove
Loosen
4. Remove hole plugs or screws from unit's new hinge locations, set aside.
5. Move screws loosened in step 1 to opposite location.
6. Install screws or plugs removed in step 4 to the unit's original hinge location to fill the holes.
7. Remove the upper hinge from the door and move it to the door's opposite side, bottom location. Secure using the original screws.
Note: If door panel is attached, it must be removed to access hinge screws and to reverse handle position.
8. Remove the original lower hinge and move it to the door's opposite side, upper location. Secure using the original screws.
9. Install pocket covers and hole plugs onto door.
2. Slide door to the side and remove from cabinet.
Plug
3. Remove plug and hinge pocket covers from door.
Pocket Cover
10. Attach the door to the cabinet using the original screws.
Installation Notes
Built In Situations: If a finished floor is to be installed in the area after the ice machine has been
built in, shims the expected thickness of the floor should be installed under the unit to keep the machine level with the planned floor level.
Installations on a slab: Use a pump model and pump the water to the point of drainage. Pump models will pump 1 story (10 feet) high.
Installations over a crawl space or basement: Either gravity drain or pump model units may be used, if there is not enough room behind the machine for a drain/waste receptacle, the drain will have to be below the floor.
Note: When installed in a corner, the door swing may be limited due to handle contact with the wall
or cabinet face.
Note: There are either plugs or screws in the holes where the hinges will mount. They must be moved.
January 2012
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SCCG30 & SCCP30 Service Manual
Door swing change
The door can be attached to open with hinges on the left or right using new brackets shipped loose in the ice bin. Retain all screws for re-use.
To change:
1. Remove innermost screw holding each hinge to cabinet, loosen the other.
2. Slide hinges to the side and remove door from cabinet. Remove screws loosened in step 1 from both hinge brackets.
3. Remove two screws securing top panel to back, pull top panel back and remove from cabinet.
4. Remove two screws at the top and lift the door hinge bracket out of the cabinet. Replace with the one supplied loose with the machine. Fasten it to the cabinet using the original screws.
Door Hinge Bracket
Note: If door panel is installed it must be removed to access hinge screws and to reverse handle position.
8. Remove the upper hinge and move it to the door's opposite side, bottom location. Secure using the original screws.
9. Remove the original lower hinge and move it to the door's opposite side, upper location. Secure using the original screws.
10. Install a screw removed in step 2 in outermost hole of upper and lower cross braces.
11. Attach the door to the cabinet using the original screws.
12. Return kickplate and front service panel to their original positions and attach to the cabinet using the original screws.
Installation Notes
Built In Situations: If a finished floor is to be installed in the area after the ice machine has been built in, shims the expected thickness of the floor should be installed under the unit to keep the machine level with the planned floor level.
5. Return the top panel to the cabinet and fasten it with the original screws.
6. Remove kickplate and front service panel.
7. Remove two front screws and two bottom screws holding the bottom cross brace to the cabinet. Replace the brace with the one supplied loose with the machine. Secure it using the original screws.
Screw Below
Installations on a slab: Use a pump model and pump the water to the point of drainage. Pump models will pump 1 story (10 feet) high.
Installations over a crawl space or basement: Either gravity drain or pump model units may be used, if there is not enough room behind the machine for a drain/waste receptacle, the drain will have to be below the floor.
Note: When installed in a corner, the door swing may be limited due to handle contact with the wall or cabinet face.
September 2011
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Installation: Water & Drain
SCCG30 & SCCP30
Service Manual
Water Supply, all models: The recommended water supply tubing is ¼ inch OD copper. Stainless steel flex or reinforced PVC tube may also be used. Install an easily accessible shut-off valve between the supply and the unit. This shut-off valve should not be installed behind the unit.
Note: Do not use self-piercing type valves.
1. Remove the front service panel.
Screw Securing Front
Service Panel
2. Route the tubing through the right hole in the back to the inlet water solenoid valve inlet at the front.
3. Install a compression fitting on the tubing and connect to the inlet of the solenoid.
Note: Do NOT connect water to tubing at the back, the water inlet connection is at the front.
Drains
There are two types of ice machine models, one that drains by gravity and one that has an internal drain pump.
Drain Pump Model drain installation
1. Locate the coil of 3/8” ID plastic drain tubing secured to the back of the unit.
2. Route the plastic drain tube from the back of the unit to the drain connection point.
IMPORTANT NOTE: Often an air gap is required by local codes between the ice maker drain tube and the drain receptacle.
Connect Water Here
Drain Tube, Route to building drain
Water Inlet Tube (field supplied)
Back View, Drain Pump Model
September 2011
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SCCG30 & SCCP30 Service Manual
Gravity Drain
Caution: Restrictions in the drain system to the machine will cause water to back up into the ice storage bin and melt the ice. Gravity drain tubing must be vented, have no kinks and slope to the building drain. Air gaps are typically required by local code.
1. Place the ice machine in front of the installation
opening. Adjust leveling legs to the approximate height.
2. Remove the front service access panel and the
upper back panel.
Note: If you are connecting a gravity drain model and the drain opening has been located in the floor under the base pan according to the pre install specifications, follow steps 3 through 5 to drain the unit through the base. If not, proceed to step 6b.
3. Remove the clamp and barbed elbow and take
off the plastic cover in the base pan below the drain hose.
4. Connect a straight 5/8” barbed connector to the drain hose, securing with the clamp removed in step 4.
5. Cut an 8” piece of 5/8” ID X 7/8” OD tygon (clear plastic) tubing. Slide one end of the tube onto the outlet of the barbed connector and secure with a clamp. Leave the other end of the tube lying on the floor of the base pan until the unit is positioned over the floor drain.
6. Route the drain tube. Either a) Insert the drain tube through the base pan into the floor drain or b) Route the drain tube through the left hole in the lower back panel and connect to barbed elbow and secure with a clamp.
7. Reinstall the upper back panel.
8. Reinstall the service access panel. Level the unit.
Drain Hose
Drain Hose, Route to building drain
Barbed Elbow
Water Inlet Tube (field supplied)
Back View, Gravity Drain Model
September 2009
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Electrical & Start Up
SCCG30 & SCCP30
Service Manual
The ice machine is supplied with a power cord. Do not remove the grounding pin from the cord’s plug. Do not use extension cords. Follow all codes. Connect the machine to its own 115 volt, 15 amp circuit.
1. If the electrical outlet for the ice maker is behind the unit, plug in the unit.
2. Position the unit in the installation opening.
3. Turn on the water supply. Make sure that the ice maker is plugged in and the power is on.
4. Slide unit into installation opening, paying careful attention to water supply and drain connections. Do not kink!
5. Pour a couple of quarts of water into the ice storage bin; on drain pump equipped machines the drain pump should start and water should pump out. Check for leaks.
Initial Start Up
1. Turn on the water supply.
2. Switch on the electrical power.
3. Move the On/Off switch to the ON position.
6. Replace the service access panel.
7. Level the unit as needed.
Installation check list:
1. Has the unit been connected to the proper water supply?
2. Has the water supply be checked for leaks?
3. Has the unit been connected to a drain?
4. Has the drain been tested for flow and leaks?
5. Has the unit been connected to the proper electrical supply?
6. Has the unit been leveled?
7. Have all packing materials been removed from the machine?
8.Has the door covering been installed?
The compressor will start and water will begin
4. to flow into the unit. When the reservoir is full,
water will start to drain from the machine. After a few minutes the water pump and fan motor will begin to operate and the first ice making cycle will have begun.
No adjustments are needed.
After about a half hour, ice will fall into the ice storage bin. The machine makes 12 cubes per batch. It is normal for the first batches of ice to melt, that continues until the bin has cooled. It will take 16 to 24 hours of continuous run time to fill the ice bin. When the bin is full of ice, the ice machine will shut off. It will automatically restart when the ice level falls, either from use or normal meltage.
September 2009
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SCCG30 & SCCP30 Service Manual
Cube Size Adjustment
The size of the ice cubes is determined by how long the ice machine is in the freezing cycle. That is controlled by the cube size thermostat.
The cube size thermostat's sensing portion is attached to the suction tube, near the outlet of the evaporator. As the machine makes ice, the temperature of the suction tubing falls. When it reaches a preset point, the thermostat's contacts close and connect power to the electronic timer. The electronic timer finishes the freeze cycle.
Side Views of Cubes
Adjustment
There is only one proper ice cube size, see the diagram to the right. If the cubes are not the correct size, adjust the cube size thermostat.
Rotate the cube size thermostat's adjustment screw clockwise to increase the size of the cube.
Too Small, Adjust Cycle Longer
Just Right
Rotate the cube size thermostat's adjustment screw counter clockwise to make the ice cube size smaller.
September 2009
Page 13
Too Large, Adjust Cycle Shorter
Page 48
Harvest Time Adjustment
The harvest time can be adjusted so that all the ice is released during the harvest period, with a few seconds extra for a safety margin. The adjustment range is between 2 to 5 minutes.
SCCG30 & SCCP30
Service Manual
There is an adjustment screw on the surface of the electronic timer. Rotate the screw CCW to reduce harvest time, and CW to increase it. It should be set to match the machine's performance. If the machine takes 2 and a half minutes to release the ice, the harvest time should be set to about 3 minutes.
September 2009
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SCCG30 & SCCP30 Service Manual
Use
No special instructions are needed for use. Just take as much ice as you need, the machine will replace it. A scoop is provided, and it can be stored in the machine using the loop of tubing on the right side as a holder.
The machine can be shut off anytime by moving the On/Off switch to OFF.. The machine will shut off immediately.
What shouldn’t be done?
Never keep anything in the ice storage bin that is not ice. Objects like wine or beer bottles are not only unsanitary, but the labels can slip off and plug up the drain.
Never allow the machine to operate without regular cleaning. The machine will last longer if it is kept clean. Regular cleaning should happen at least once per year, and preferably twice. Some water conditions will dictate even more frequent cleaning of the ice making section, and some carpets or pets will dictate more frequent cleaning of the condenser.
Noise:
The ice machine is designed for quiet operation, but will make some noise during the ice making cycle. During a freezing cycle, it is normal to hear the fan moving air and the water pump circulating water. Ice hitting the bin or ice in the bin can be heard during harvest.
If ice making noise is objectionable, an appliance grade timer can be added to the power supply. Set the timer to turn the machine off at the time(s) of day when the noise is most objectionable.
Normal cubes are tapered cylinders. If the cubes
are ragged and mis-shaped, mineral scale must be
removed from the ice making system
Maintenance
There are 5 things to keep clean:
1. The outside cabinet & door.
2. The ice storage bin.
3. The condenser.
4. The ice making system.
5. The ice scoop.
How to clean the cabinet.
Wipe off any spills on the surface of the door and handle as they occur. If anything spilled on the door or gasket dries onto the surface, wash with soap and warm water to remove.
How to clean the ice storage bin.
The ice storage bin should be sanitized occasionally. It is usually convenient to sanitize the bin after the ice making system has been cleaned, and the storage bin is empty.
A sanitizing solution can be made of 1 ounce of household bleach and two gallons of hot (95
o
115
F.) water. Use a clean cloth and wipe the interior of the ice storage bin with the sanitizing solution, pour some of the solution down the drain.
Allow to air dry.
September 2009
Page 15
o
F. –
Page 50
How to clean the condenser and winterize.
SCCG30 & SCCP30
Service Manual
Condenser cleaning
The condenser is like the radiator on a car, it has fins and tubes that can become clogged with dirt and lint. To clean:
1. Remove the kickplate and front service panel.
2. Locate the condenser surface.
Winterizing
1. Clean the ice making system.
2. Open the door and push and release the On/Off switch to turn the machine off.
3. Turn off the water supply.
4. Drain the water reservoir by removing the rubber cap under the reservoir - it's near the back wall of the ice storage bin.
Rubber Cap
3. Vacuum the surface, removing all dust and lint.
Caution: Do not dent the fins.
4. Return the kickplate and front service panel to their original positions. Fasten them to the cabinet using the original screws.
5. Disconnect the incoming water line at the inlet water valve.
6. Open the door, push and release the on/off switch to turn the machine on.
7. Blow air through the inlet water valve; a tire pump could do the job.
8. Drain pump models should have about 1/2 gallon of RV antifreeze (propylene glycol) poured into the ice storage bin drain.
Note: Automotive antifreeze must NOT be used.
9. Switch off and unplug the machine.
September 2009
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SCCG30 & SCCP30 Service Manual
How to remove scale from the ice making system.
1. Scoop out all of the ice, either discard it or save it in an ice chest or cooler.
2. Switch the machine Off.
3. Pour 8 ounces of Scotsman Ice Machine Scale Remover (available from a local Scotsman Distributor or Dealer) into the ice machine reservoir.
4. Switch the machine On.
5. Operate the machine for about 2 hours.
6. Pour a gallon of hot (95
o
115
F.) water into the bin to melt ice formed during the cleaning process and to flush out the drain.
7. Clean the bin liner of mineral scale by mixing some ice machine scale remover and hot water, and using that solution to scrub the scale off of the liner.
8. Rinse the liner with hot water.
o
F. –
Pour Scale Remover Here
9. Sanitize the bin interior.
10. Replace the ice removed in step 1.
The ice scoop should be washed regularly, wash it just like any other food container.
September 2009
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Page 52
System Information
SCCG30 & SCCP30
Service Manual
Overall:
Refrigerant: 8 oz R-134a
Compressor: Hermetic, 700 BTUH
Condenser: Forced draft
Fan blade: 3 blade, 6 inch
Evaporator: Inverted, 12 cube cells. copper,
continuous serpentine Metering device: Cap tube
Defrost method: Hot gas bypass with water
assist Spray method: 6 water jets
Water charge: 30 ounces
Water valve: 115 volt solenoid, .19 GPM
Water fill time: Varies with harvest time
Spray pump: Pedestal type.
Drain pump: Magnetic drive, controlled by
pressure switch Purge method: Overflow standpipe
Control method: Electronic timer with electro
mechanical cube size thermostat Cycle control: Reverse acting thermostat
Cube size adjustment: Thermostat cut in change
Harvest cycle adjustment: Harvest timer change, range between 2 and 5 minutes.
Bin control: Thermostat. Opens on temperature fall, Cut Out: 35 degrees F. Cut In 45 degrees F. Range is adjustable.
Electrical Components:
Compressor
Fan motor
Spray pump motor
Drain pump motor
Drain pump switch
Inlet water solenoid valve
Freeze & harvest timer
Cube size thermostat
Hot gas valve
Bin thermostat
Electrical Sequence:
The machine uses a temperature initiated, timed cycle to make ice.
A closed bin thermostat connects power to the compressor and electronic timer. The timer NO contacts close, connecting power to the water and hot gas solenoids.
The compressor starts, the inlet water solenoid valve opens and fills the reservoir. The harvest timer starts. At the end of the pre-set harvest time, the timer will open the NO contacts, stopping the inlet water valve and hot gas valve. At the same time, it closes the NC contacts, powering the fan and pump motors. This is the beginning of the freeze cycle.
The freeze cycle continues until the cube size contacts close, this starts a freeze timer. No other changes occur until the freeze timer expires, when the NC contacts open and the NO contact close, starting the harvest cycle.
The harvest cycle is time controlled. At the end of the harvest cycle the unit returns to a freeze cycle.
Bin control.
The machine's on and off modes are regulated by a bin thermostat. The cap tube for the bin thermostat is in the tube that holds the scoop. The machine will only begin ice making when the thermostat's contacts close. The machine will stop ice making whenever the bin thermostat contacts open.
September 2009
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Page 53
SCCG30 & SCCP30 Service Manual
Water System
The water system consists of a water pump, inlet water solenoid valve, reservoir with overflow standpipe and spray platform.
Harvest cycle: The inlet water solenoid valve is open during the harvest cycle. Water flows through it to the top of the machine and onto the evaporator platen. The water flows across the platen, warming it up to assist in releasing the ice. Water drains from the platen through drain holes at the platen corners. That water, now chilled by contact with the evaporator platen, drains into the reservoir. When the reservoir is full, excess water drains out the standpipe. When harvest is complete, the inlet water solenoid closes and water stops flowing into the machine.
Standpipe
Freeze cycle: The water pump takes water from the reservoir and forces it through the 6 spray jets, causing the water to contact the inverted cups of the evaporator. Unfrozen water falls back into the reservoir. As ice forms in the cups, the water level in the reservoir fails. This continues until the harvest cycle starts.
Inlet Water Solenoid Valve
Harvest Cycle Water Schematic
Evaporator
Pump
Reservoir Drain
September 2009
Page 19
Freeze Cycle Water Schematic
Page 54
Components
SCCG30 & SCCP30
Service Manual
Model and
Serial Tag
Location
Bin Thermostat Bracket and Scoop
Evaporator Platen
Model and Serial Plate Location
Evaporator & Top of Unit
September 2009
Page 20
Condenser and Bin ThermostatInlet Water Solenoid Valve
Page 55
SCCG30 & SCCP30 Service Manual
Performance Information
Listed cycle times are after the 3rd consecutive cycle, will vary a minute or so, and will be longer for built in units.
Freeze Cycle, Minutes
100 60 46 45 43 42 40
90 54 44 42 40 38 36
80 45 40 38 37 35 34 Water Temperature
Harvest time is usually 2 minutes, longer in very cold conditions.
Total Cycle, Minutes
70 40 37 35 33 32 30
60 31 30 27 26 24 23
50 24 23 22 21 20 19
40 23 21 20 19 18 18
100 62 48 47 45 44 42
90 56 46 43 42 40 38
100 90 80 70 60 50
100 90 80 70 60 50
Air Temperature
Air Temperature
80 47 42 39 39 37 36 Water Temperature
Ice per cycle: 1/2 lb
Water drained / cycle: Varies by harvest cycle length and purge setting. Typically about 3 pints.
Compressor amps: 2.9 - 3.1
70 42 39 37 35 33 32
60 32 32 29 26 26 23
50 26 25 23 23 22 24
40 25 22 22 21 24 23
September 2009
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Refrigeration System
Suction Pressure
0
10
20
30
40
50
60
70
Time
PSI G
Discharge Pressure
0
20
40
60
80
100
120
140
Time
PSI G
SCCG30 & SCCP30
Service Manual
September 2009
Page 22
Page 57
SCCG30 & SCCP30 Service Manual
Service Diagnosis
No Ice
Problem Likely Cause Probable Solution
No power to unit Power disconnected
Dirty condenser Clean condenser
Restricted location, intake air too hot or blocked
Evaporator thermostat not sensing properly
Very long freeze cycle
Spray jets dirty
Inlet water valve leaks through during freeze
Low on refrigerant Check cube formation,
Connected to hot water
Spray pump not pumping Check pump motor
Fan motor not turning Check fan motor, check fan blade
Check breaker or fuse. Reset or replace, restart and check
Eliminate restriction, have machine moved
Check thermostat
Remove spray platform and clean spray jets
Check inlet water valve
Check for bleed thru from / missing check valve in building water supply
Cannot make ice
Pump hose disconnected Check hose
Water leak Check curtain, sump drain cap
Add access valve, add refrigerant
Very low on refrigerant
Compressor not operating
Hot gas valve leaks through during freeze
Compressor inefficient
as a test. If unit makes ice, find and correct leak.
Check compressor start components
Check compressor voltage
Check compressor windings
Check hot gas valve for hot outlet during freeze
Check compressor amp draw, if low and all else is correct, change compressor
September 2009
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Page 58
SCCG30 & SCCP30
Service Manual
Service Diagnosis
Makes excessive noise
Problem Likely Cause Probable Solution
Fan blade vibrates
Compressor vibrates Mounting loose Check mounting
Water pump vibrates Pump bearings worn Replace pump
Panels vibrate Mounting screws loose Tighten screws
Makes ice, does not harvest
Problem Likely Cause Probable Solution
Ice wrong size Environment changed Adjust cube size
Little heat to evaporator
Makes poor quality ice
Problem Likely Cause Probable Solution
Blade is bent Replace fan blade
Fan motor mount is broken Replace motor mount
Check voltage to coil when unit is
Hot gas valve does not open
Water temperature very low Adjust harvest time
in harvest, check controller indicator light.
Spray pattern poor Spray jets dirty Clean jets
Runs out of water Water leaking from reservoir Correct leak
High TDS water supply Groundwater supply Treat water
Makes ice, but melts rapidly
Problem Likely Cause Probable Solution
Restricted drain, water in bin
Gravity drain hose has air block Check for kinks or traps
Pump model switch not starting pump
Check / replace switch
September 2009
Page 24
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SCCG30 & SCCP30 Service Manual
Removal and Repair
Bin Thermostat
1. Disconnect electrical power.
Electrical Shock Hazard.
Disconnect electrical power before beginning removal
2. Remove service panel.
3. Remove back panel.
Note: If unit is built in it must be pulled out to change the bin thermostat.
4. Pull cap tube out from the back of the ice storage bin and cap tube holder.
9. Reverse to reassemble.
Curtain
1. Shut unit off.
2. Loosen both thumbscrews holding curtain bracket to freezing chamber.
3. Pull out and remove curtain with bracket from ice machine.
4. Reverse to reassemble.
Spray Platform
1. Remove curtain.
2. Lift spray platform up until it disconnects from its fitting.
3. Pull forward and remove from the ice machine.
5. Remove two screws and the bin thermostat contact section from its mounting bracket.
6. Disconnect two wires from the bin thermostat contact section and remove the thermostat from the ice machine.
7. Reverse to reinstall.
Inlet Water Solenoid Valve
1. Disconnect electrical power.
2. Remove service panel.
3. Shut water supply OFF.
4. Disconnect inlet water supply tube from inlet water solenoid valve.
5. Unplug wire harness from valve coil.
6. Remove two screws holding valve to chassis.
4. Reverse to reassemble.
Water Pump
1. Disconnect electrical power.
2. Remove spray platform
3. Remove back panel.
Note: If unit is built in it must be pulled out to change the water pump.
4. Disconnect power and ground wires from pump motor.
5. Rotate pump body CW and lift up to remove it.
6. Reverse to reassemble.
7. Squeeze hose clamp larger and push away from solenoid valve outlet.
8. Pull hose from outlet of valve.
September 2009
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Page 60
Removal and Repair
SCCG30 & SCCP30
Service Manual
Cube Size Thermostat
1. Disconnect unit from electrical power.
Electrical Shock Hazard.
Disconnect electrical power before beginning removal
2. Remove door.
3. Remove top panel.
4. Remove service panel.
5. Remove back panel.
6. Cut cable tie holding cube size bulb in evaporator well. Pull bulb out of well.
9. Disconnect wires from cube size thermostat.
10. Remove two screws holding cube size thermostat to bracket. Pull cube size thermostat from the machine.
11. Route new cube size thermostat bulb and cap tube from the front, through the hole in the air baffle and into the back of the unit.
12. Attach cube size thermostat to thermostat bracket, attach wires.
Note: Replacement thermostat wiring may be different from the original. Check for instructions.
13. Attach bracket to cabinet.
14. Route cube size cap tube and bulb up the back of the machine and into the evaporator area.
15. Insert bulb into evaporator well. Secure with tie wrap.
Bulb Well
7. Pull cube size cap tube and bulb from evaporator area and allow to hang freely behind machine.
8. Remove two screws holding thermostat bracket to cabinet. Drop bracket down and pull forward to get access to wires and screws.
16. Return all panels to their normal positions ans secure with the original screws.
17. Reconnect power. Test machine, adjust cube size as needed.
Harvest Timer
1. Disconnect electrical power.
Electrical Shock Hazard.
Disconnect electrical power before beginning removal
2. Remove service panel.
3. Remove screw in center of timer, pull out and disconnect wires.
4. Reverse to reassemble.
September 2009
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Page 61
SCCG30 & SCCP30 Service Manual
Removal and Repair - Cabinet Removal
Certain components require the removal of the cabinet for repair access.
1. Shut machine off, if making ice, melt ice with hot water.
2. Remove all ice.
3. Drain reservoir.
4. Remove service panel and kick plate.
5. Remove back panel.
6. Disconnect electrical power.
Electrical Shock Hazard.
Disconnect electrical power before beginning removal
12. Pull clip up and pull water inlet elbow out of inner elbow.
13. Push inner elbow back and rotate it until it points straight up, then push it back through the hole in the back of the freezing compartment.
Inlet Elbow
Inner
Elbow
Clip
7. Disconnect water and drain tubing.
8. Remove door.
9. Remove top panel.
10. Remove curtain & hanger.
14. Remove two screws holding freezing compartment brackets to cabinet, lift brackets up.
Bracket
11. Locate elbows where water flows onto the evaporator platen.
September 2009
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Page 62
15. Lift evaporator platen up and tilt back enough for bin assembly to clear the base.
16. Remove air baffle.
SCCG30 & SCCP30
Service Manual
18. Remove 1 screw at each corner of the base.
19. Lift bin assembly off the base.
Note: Prop evaporator assembly up. A 3' length of 3/4" PVC tubing with one end inserted into the cup mold and the other against the base will hold it up.
The hot gas valve, fan motor, condenser and compressor are now exposed for service.
Air Baffle
17. Unplug wire harness connector (at back of bin).
September 2009
Page 28
Page 63
SCCG30 & SCCP30 Service Manual
Refrigeration Service
This ice machine use R-134a type refrigerant. There are specific rules for handling that refrigerant.
To check for system pressures, add a field supplied clamp-on type service valve as a temporary means of system access. After diagnosis and before final repair, replace the clamp-on type valve with valves that are brazed onto the process tubes of the system.
Use a low flow of dry nitrogen when brazing on the system.
Install a new filter drier when replacing a refrigeration component or after a refrigerant leak repair.
Evacuate the system to at least 300 microns and use a micron gauge to measure the evacuation level.
Weigh in the nameplate charge. The machine is critically charged and a partial ounce mis-charge will affect performance.
September 2009
Page 29
Page 64
INTRODUCTION
DCE33
The Scotsman DCE33 is a restaurant type ice machine designed for home use. It produces the same high quality ice as large Scotsman commercial ice cube machines, and stores that ice in a heavily insulated storage bin.
This service manual is intended as a resource for people installing, using, and servicing the DCE33. Because it contains information on safety and maintenance, Scotsman strongly recommends that this manual be kept where it is readily available.
Table of Contents
TECHNICAL INFORMATION ··································· Page 2
CABINET DIMENSIONS ····································· Page 3
INSTALLATION ·········································· Page 4
TO INSTALL: Plumbing ······································ Page 5
TO INSTALL: Plumbing ······································ Page 6
TO INSTALL: Plumbing ······································ Page 7
TO INSTALL: Plumbing ······································ Page 8
TO INSTALL: Plumbing ······································ Page 9
TO INSTALL: Add On Kits ···································· Page 10
TO INSTALL: Add On Kits ···································· Page 11
AFTER INSTALLATION ····································· Page 12
AFTER INSTALLATION - OPERATION ····························· Page 13
OPERATION ··········································· Page 14
COMPONENT LOCATION ···································· Page 15
MAINTENANCE AND CLEANING ································ Page 16
CLEANING ············································ Page 17
ADJUSTMENTS ········································· Page 18
ADJUSTMENTS ········································· Page 19
HARVEST TIME ADJUSTMENT, models DCE33A-1BD or DCE33PA-1BD ··········· Page 20
SERVICE DIAGNOSIS ······································ Page 21
SERVICE DIAGNOSIS ······································ Page 22
REPAIR·············································· Page 23
REPAIR·············································· Page 24
REPAIR·············································· Page 25
REPAIR·············································· Page 26
Parts lists and wiring diagrams are located in the center of the manual.
September 2011
Page 1
Page 65
DCE33
TECHNICAL INFORMATION
Scotsman Ice Systems are designed and manufactured with the highest regard for safety and performance. They meet or exceed the standards of U.L., and C.U.L.
Scotsman assumes no liability or responsibility of any kind for products manufactured by Scotsman that have been altered in any way, including the use of any parts and/or other components not specifically approved by Scotsman.
Cool Air In
Warm Air Out
Serial Number
Tag Location
Scotsman reserves the right to make design changes and/or improvements at any time. Specifications and designs are subject to change without notice.
Model Number Basic
Electrical
DCE33A-1WB 115/60/1 15 amp White No DCE33PA-1WB 115/60/1 15 amp White Yes DCE33A-1BB 115/60/1 15 amp Black No DCE33PA-1BB 115/60/1 15 amp Black Yes DCE33A-1SB 115/60/1 15 amp Black
DCE33PA-1SB 115/60/1 15 amp same Yes DCE33A-1WC 115/60/1 15 amp White No DCE33PA-1WC 115/60/1 15 amp White Yes DCE33A-1BC 115/60/1 15 amp Black No DCE33PA-1BC 115/60/1 15 amp Black Yes DCE33A-1SC 115/60/1 15 amp Black
DCE33PA-1SC 115/60/1 15 amp same Yes DCE33A-1BD 115/60/1 15 amp Black No DCE33PA-1BD 115/60/1 15 amp Black Yes
Add On Kits: Stainless Steel Door Panel Kit is SS33 Cabinet Extensions: KCE18-W (white) KCE18-B (black) Stainless steel door sleeve conversion kit is K-SS Drain Pump Kit to convert gravity drain to pump drain is
part number A36892-020 (must also order pump). Refrigerant Charge is 5 ounces of R-134a. Compressor HP
is 1/8 D series (example DCE33PA-1BD) only available in Black.
D series also utilizes an electronic harvest timer. All others equipped with mechanical timer.
Maximum Fuse Size
Cabinet Color
with SS door
with SS door
Drain Pump?
No
No
September 2011
Page 2
Page 66
CABINET DIMENSIONS
DCE33
DCE33 Cabinet Views
Refrig.
Overhead View of DCE33 and
Companion Refrigerator Side By
Ice Machine
Pump Drain Hose is 3/8"
ID
September 2011
Page 3
Page 67
INSTALLATION
DCE33
To properly make and store ice, the DCE33 requires access to air, potable water, 115 volt electricity and a drain. The machine must be installed indoors, in a controlled environment.
Air: The ice machine uses a fan to take in room air at the front of the machine through the right side of the kick plate. It discharges warm air out the left side of the kick plate. Anything placed in front of the kick plate will restrict air flow and cause a decrease in performance and efficiency. The minimum air temperature the machine will operate in is 50
Water Supply: The ice machine requires a continuous supply of potable water at no less than 20 p.s.i.g. of flowing pressure. Static water pressure should not exceed 80 p.s.i.g. The minimum water temperature the machine will operate in is 40
There is no such thing as “pure” water; all water, including potable water supplied by municipalities, contains some “impurities”. Water absorbs impurities from the air as rain and/or as it flows through the ground. Some of the impurities are solid particles, these are known as suspended solids, and a fine particle filter will remove them. Other impurities are chemically bonded to the water molecules, and cannot be filtered out, these are called dissolved solids.
0
F., and the maximum is 1000F.
0
F., and the maximum is 1000F.
Water Quality:
Ice made by the DCE33 will have a lower mineral content than the water it was made from.
To keep the machine operating properly, these impurities or minerals will have to be regularly dissolved by an acid cleaning, using Scotsman Ice Machine Cleaner. Directions for this may be found in the section under cleaning.
In general, it is always a good idea to filter the water. A water filter, if it is of the proper type, can remove taste and odors as well as particles. Some methods of water treatment for dissolved solids include reverse osmosis, and polyphosphate feeders. A reverse osmosis system should include post treatment to satisfy the R.O. water’s “aggressiveness”.
Deionized water is not recommended.
Because water softeners exchange one mineral for another, Scotsman does not recommend their use for ice machines. Where water is very hard, softened water may result in white, mushy cubes that stick together.
Scotsman suggests, that if in doubt about the water, that a local point of use water specialist be contacted for recommendations on water treatment.
Electricity: The machine is supplied with a cord, and may be plugged into a wall outlet. The ice machine should be the only device using that circuit.
The fuse (or circuit breaker) size should be 15 amps.
Drain: There are two DCE33 models:
Purer water will freeze first in the ice making molds. The reason for this is that anything dissolved in water lowers the water’s freezing temperature.
This concentrates most of the impurities in the ice machine water reservoir where they may form hard deposits known as scale. The DCE33 dilutes the concentration of minerals by over-filling the reservoir during the harvest cycle (with the excess water flowing down the drain). About 3 quarts of water flow into the unit each cycle. About 1 quart of that rinses the reservoir and goes down the drain.
Some impurities will inevitably remain, and will stick to the parts in the machine, and will cause malformed ice cubes. Eventually, built up mineral
scale can shorten machine life.
September 2011
The DCE33A-1 is a gravity drain model that requires a drain tube that’s pitched down from the outlet at the back of the cabinet to the connection to the sanitary sewer.
The DCE33PA-1 has a built in drain pump that will pump water up to a drain point, such as a nearby sink.
Page 4
Page 68
TO INSTALL: Plumbing
DCE33
The water supply and drain should be roughed in and ready at the point of installation. A wall outlet directly behind the ice machine will make undercounter installation easier. All electrical, water and drain connections must conform to local codes.
Installation Cautions: Although the DCE33 has been designed to be serviced in place, in some cases it may be necessary to pull the unit out for service. For that reason do not restrict access to the cabinet at the front - top and bottom.
Install Unit
Flush With Floor
Installations on a slab: Use a pump (DCE33PA-1) model and pump the water to the point of drainage. Pump models will pump 1 story high.
Installations over a crawl space or basement:
Either gravity drain or pump model units may be used, if there is not enough room behind the machine for a drain/waste receptacle, the drain will have to be below the floor.
ALL PLUMBING MUST MEET LOCAL CODES
Note: When installed in a corner, the door swing may be limited due to handle contact with the wall or cabinet face.
Shims
If a floor is to be installed after the ice machine, shims the thickness of the floor should be installed under the DCE33 to keep the machine level with the floor. Also, allow 1/8" clearance on each side of the cabinet.
From Ice Machine
Normal Drain Line, Pitched
Down From Ice Machine
With Trap, Causes Poor Draining
With Trap And Vent,
Draining Is Normal
To Drain
Good Draining
Poor Draining
Good Draining
EXAMPLES OF GRAVITY DRAIN TUBE INSTALLATIONS
September 2011
Page 5
Page 69
DCE33
TO INSTALL: Plumbing
Free Standing Cabinet, Gravity Drain Model:
All horizontal runs of drain lines must have a 1/4" per foot fall. An air gap will likely be required between the ice machine drain tube and the drain/waste receptacle. A stand pipe with a trap below it would be acceptable for the drain/waste receptacle. A floor drain is also acceptable.
FOLLOW ALL LOCAL PLUMBING CODES
Poor draining will cause a high rate of ice melting in the bin.
1. Remove the kick plate and the access cover above it.
2. Route the water supply, which should be a 1/4" O.D. copper tube through the back of the cabinet to the front.
3. Install a flare nut and flare the end of the tube.
4. Flush the water line and fasten the flare nut to the male flare on the inlet water valve.
5
5. Route a
" ID (7/8" OD) drain tube through the
8
back panel of the machine and connect to the bin drain fitting at the bottom of the bin. Secure with hose clamps.
Be certain that the drain tube is pushed up well past the barbs on the drain fitting. If needed to ease installation, soak the drain hose in hot water just before connecting to the fitting.
6. Route the drain tube from the ice machine to the drain/waste receptacle. Note: if using a long horizontal run (more than 5’) the drain should be vented at back of cabinet.
7. Turn on the water supply and check for leaks.
8. Replace the kick plate and the access cover above it.
9. Level the unit using the leg levelers.
Drain Detail
Connection Detail
September 2011
Page 6
Water Filter
(Recommended)
Shut Off Valve
Water Inlet
INSTALLATION OF WATER AND DRAIN
Floor Drain
Page 70
TO INSTALL: Plumbing
DCE33
Free Standing Cabinet, Pump Model:
1. Remove the kickplate and control box cover.
2. Route the water supply, which should be a 1/4" O.D. copper tube through the back of the cabinet to the front.
3. Install a flare nut and flare the end of the tube.
4. Flush the water line and fasten the flare nut to the male flare on the inlet water valve.
5. Locate the coil of 3/8" ID plastic drain tubing secured to the back of the cabinet.
6. Route the plastic drain tubing to the drain point connection. Do not connect to a drain/waste line below a trap. Connect the discharge line to the drain, per local codes. An air gap will likely be required between the ice machine drain tube and the drain/waste receptacle.
7. Turn on the water and plug in the ice machine. Pour a couple quarts of water in the bin, the drain pump should start. Check for water leaks.
8. Replace the kickplate and control box cover.
9. Level the unit using the leg levelers.
ALL PLUMBING MUST MEET LOCAL CODES
THE DCE33 WILL FIT IN A SPACE
THE DEPTH OF THE CABINET IS 22" TO
THE FRONT EDGE OF THE HANDLE.
1
"WIDEX33
15
4
3
" HIGH.
4
Air Gap Device
(Where Required)
Drain
Connection
Water Shut
Off Valve
Water Filter
(Recommended)
WATER AND DRAIN
INSTALLATION
Drain Tube
From Back Of
Machine
September 2011
Page 7
Water Inlet Connection
Page 71
DCE33
TO INSTALL: Plumbing
Built In, Gravity Drain Model:
The drain and inlet water tubes must be plumbed before connecting to the ice machine. All horizontal runs of drain lines must have a 1/4" per foot fall. An air gap will likely be required between the ice machine drain tube and the drain/waste receptacle. A stand pipe with a trap below it would be acceptable for the drain/waste receptacle.
Note: Poor draining will cause a high rate of ice melting in the bin.
1. Place ice machine in front of installed location. Adjust leg levelers to approximately correct position.
2. Remove kickplate and the access cover above it.
3. Route water inlet line, which should be a 1/4" O.D. copper tube, from wall through ice machine to the front.
4. Route drain line from wall position through ice machine. Note: if using a long horizontal run (more than 5’) the drain should be vented at back of cabinet.
6. Push ice machine into installed position.
7. Cut off water inlet line at required length.
8. Flush water line. Place flare nut on inlet water line and flare the end of the copper tube.
9. Attach flare nut to the male flare on the inlet water valve.
10. Cut off the drain tube to the required length.
5
11. Route a
" drain tube through the back panel
8
of the machine and connect to the bin drain fitting at the bottom of the bin. Secure with hose clamps.
Be certain that the drain tube is pushed up well past the barbs on the drain fitting. If needed to ease installation, soak the drain hose in hot water just before connecting to the fitting.
12. Turn on the water supply and check for leaks.
13. Replace the kickplate and the access cover above it. Level as needed.
ALL PLUMBING MUST MEET LOCAL CODES
5. If electrical outlet for ice machine is behind the cabinet, plug in the ice machine now.
INSTALLATION OF WATER
AND DRAIN
Drain
Connection
Water Filter
(Recommended)
Shut Off Valve
September 2011
Page 8
Water Inlet Connection
Detail
Page 72
TO INSTALL: Plumbing
DCE33
Built In Pump Model:
1. Place ice machine in front of installed location. Adjust leg levelers to approximately correct position.
2. Remove kickplate and control box cover.
3. Route water inlet line from wall through ice machine to the front.
4. Locate coil of 3/8" ID plastic drain tubing secured to the back of the cabinet.
5. Route plastic drain tube from back of cabinet to drain connection point.
Note: Often an air gap is required by local codes between the ice machine drain tube and the drain receptacle.
6. If electrical outlet for ice machine is behind the cabinet, plug in the ice machine now.
7. Push ice machine into installed position.
8. Cut off water inlet line at required length.
9. Flush water line. Place flare nut on inlet water line and flare the end of the copper tube.
10. Attach flare nut to the male flare on the inlet water valve.
11. Turn on the water supply, and make sure that the ice machine is plugged in and the power is on.
12. Pour a couple of quarts of water into the storage bin, the drain pump should start and pump water out. Check for leaks.
13. Replace kickplate and control box cover.
14. Level the cabinet as needed.
ALL PLUMBING MUST MEET LOCAL CODES
THE DCE33 WILL FIT IN A SPACE 15
THE DEPTH OF THE CABINET IS 22" TO
THE FRONT EDGE OF THE HANDLE.
1
"WIDEX33
4
3
" HIGH.
4
Air Gap Device
(Where Required)
Drain
Connection
Water Shut Off
Valve
Water Filter
(Recommended)
WATER AND DRAIN
INSTALLATION
Drain Tube From
Back Of Machine
September 2011
Page 9
Water Inlet Connection
Page 73
DCE33
TO INSTALL: Add On Kits
Drain Pump Kit
The DCE33 is delivered either with or without a drain pump. Models without a drain pump drain their water by gravity. However, gravity drain models may be converted to Pump models thru the installation of a Drain Pump Kit and Drain Pump.
Two parts are required for this conversion:
Drain pump kit part number................A36892-020 (all except DCE33A-1BD)
Drain pump kit part number.................................A39885-001 for DCE33A-1BD
Drain pump part number..................12-2503-21
Drain Pump
Specific step-by-step instructions are included with the kit.
September 2011
Page 10
Page 74
TO INSTALL: Add On Kits
Door Kit: The door may be modified to accept a decorator door panel.
Customizing Door Panel:
A custom door panel may be installed in front of
3
the standard one. Any panel 14
1
high and
" thick or less at the edges may be used
4
" wide, 28
4
as a decorator panel. Examples of decorator panels include wood to match the adjacent cabinets; metal of different colors to match nearby appliances; or just about any material that will fit. Scotsman has a stainless steel panel available to fit this machine, the kit number is SS33.
If the material is less than 1/4" thick, the space between the new panel and the original may be filled with cardboard.
1. Remove single screw and the left hand hinge filler plate from the top of the door.
2. Remove two screws from the top of the door and lift off the door handle.
15
"
16
Custom Panel,
Thin Panel
Shown With Filler
DCE33
Parts Involved in Customizing Door Panel
3. Open the door slightly, about one-third or so; then, remove the front screw holding the hinge to the door.
4. Loosen the rear screw of the hinge just enough to allow the door to sag or move forward. This will allow access to the top of the channels at the right and left edges of the door.
5. From the top of the door, insert the decorator panel (pre-cut) evenly into the channels; carefully slide the panel all the way down until the panel is fully into the bottom channel.
6. Check that the panel is the in all the way and does not protrude past the top edge of the door.
7. Push the top hinge corner of the door IN to align screw hole in the hinge with the screw hole in the door. Install the screw previously removed. Tighten the other screw.
Hinge
Filler Plate
Hinge
Door With
Groove
Door Handle
8. Replace the door handle and filler plate; secure with screws previously removed.
September 2011
Page 11
Page 75
DCE33
AFTER INSTALLATION
Reversing Door Swing:
The hinged side of the door may be reversed to the other side if desired:
The DCE33 was shipped with the door hinged at the right. The door and hinges are designed for placing the hinges on either the right or the left side of the cabinet. Moving the hinges to the left allows the door to pivot from the left side.
Note: There is a part, packed with the machine, that is required for this procedure.
1. Open the door and remove the three screws holding the lower hinge to the cabinet.
2. With the door open enough to see both screws at the top door hinge, remove the two screws. The door is now free of the cabinet.
3. Remove the single screw and the hinge filler plate from the top of the door.
4. Install the other filler plate (shipped inside refrigerator compartment) onto the top corner of the door where the hinge was.
5. Remove the three plastic plugs from the top front corner where the hinge will mount.
6. Remove the three plastic plugs from the lower front corner where that hinge will mount.
7. Remove the three screws holding the top hinge to the cabinet. Remove that hinge from the top and, flipping it upside down, install it onto the bottom of the door, on the opposite side using the original screws.
Hinge
Door Handle
Filler Plate
8. Remove the hinge assembly from the bottom of the door, and flip it upside down; secure it to the cabinet at the opposite side top position with the original screws.
9. Hold the door up to the cabinet. Secure the door to the top hinge with the original screws.
10. Secure the bottom hinge to the cabinet with the original screws.
11. Place the plastic plugs removed earlier into the empty holes.
12. Check operation of the door by opening and closing it.
Hinge
September 2011
Page 12
Magnetic
Gasket
Reverse Hinges From Top to Bottom and
Left to Right to Reverse Door Swing
Door
Page 76
AFTER INSTALLATION - OPERATION
DCE33
Final Check List
1. Has the machine been properly uncrated, and have all packing materials and tape been removed from inside the bin?
2. Have the installation instructions been followed, including connecting the machine to water, drain and electricity?
3. Has the machine been leveled?
Initial Start Up - DCE33A-1BD or DCE33PA-1BD
1. Turn on water supply.
2. With unit plugged in, rotate ice machine control knob to the ON position.
3. Allow the unit to operate for 1 hour, and check the size of the cubes, if they are not correct, adjust as recommended on page 18.
4. After the cubes are confirmed to be the correct size, replace all panels.
5. Locate the nameplate on the control box cover. Record the serial number and date of start up here in the manual. Keep the manual handy for future reference.
Serial Number:___________________________
Date of initial start up:_____________________
6. Fill out and mail the Warranty Registration.
How To Use:
The ice machine is extremely simple to use, just turn the ice machine control knob to the on position. The DCE33 will automatically begin to freeze ice and will continue to do so until the bin is full. A new machine, warm out of the box, could take as long as 48 hours to fill and shut off.
Use the scoop to remove ice and place the ice scoop in the holder provided (do not leave the scoop on the ice, as it will gradually disappear into the ice).
What to expect from the DCE33
The DCE33 will release a batch of 8 ice cubes about every 30 minutes. At the same time the cubes fall into the storage bin, water will be entering the ice machine and draining out.
Ice: The ice cubes are tapered cylinders about 1 in diameter at the widest end; taper down to 1"
1
wide at the top; and are 1
" high. When the
8
machine is adjusted properly, there should be a indent in the base of the cube. The ice will appear wet when fresh, this is normal. It may also develop frost on the outside and look cloudy - this is also normal (the frost will disappear when liquid is poured over the ice).
Storage: All restaurant type ice machine operate on this principal: The ice storage bin is not refrigerated; instead it’s heavily insulated, much like a picnic cooler or ice chest. If the ice bin were to be refrigerated, the ice would freeze together into one very large cluster of ice, and would begin to evaporate. This would yield ice that is very poor in quality, and difficult to remove from the machine.
1
1
4
"
4
"
The DCE33 will continue to operate until ice builds up high enough to contact the bin thermostat sensor tube, then it will shut off. Models with a drain pump will occasionally pump out melt water when the machine is off. The pump will only be on for a few seconds.
Run Time: The amount of time the DCE33 will run to replace melted ice is about 6 hours per day. The amount of time the ice machine will run to replace ice removed is dependent upon how much is removed, how clean the ice machine is, and how hot the air and water supplied to the machine are. A machine that has been emptied will usually take about 24-36 hours to re-fill.
September 2011
Page 13
Page 77
DCE33
OPERATION
How does the machine make ice?
There are two distinct cycles: freeze and harvest.
1 freeze cycle + 1 harvest cycle = 1 batch of 8 cubes.
The Freeze cycle happens when water is sprayed against the freezing surface. The Harvest cycle is when the ice is released and water enters the machine. A complete cycle takes about 30 minutes.
Freeze: During the freeze cycle the compressor is pumping refrigerant, the fan motor is blowing air, and the water pump is circulating water. As the refrigerated surface absorbs heat from the water sprayed against it, that heat is moved to the area where the fan is blowing air. The heat is transferred to the air, and the warmed up air is discharged from the ice machine. At the same time ice is forming on the refrigerated surface (located at the upper back of the machine). When the refrigerated surface gets cold enough, the ice machine’s timer will start. After a few minutes the timer will stop the freeze cycle and begin the harvest.
Harvest: During the harvest cycle the compressor is still operating, but the spray pump and fan motor have stopped. Two other components have been energized; the hot gas valve and the inlet water valve. These two valves open and warm up the freezing surface, allowing the cubes to fall into the bin. The timer is still turning, and when it gets to the end of the harvest cycle, the freeze cycle will restart.
How does the machine use water? The ice machine begins with a fixed charge of water that is contained in the reservoir. As the water is sprayed against the freezing surface, the part of water that does not contain mineral impurities will freeze and stick to the ice cup molds. The water containing impurities falls back into the reservoir. Gradually, during the freezing portion of the ice making cycle, the water in the reservoir will become highly concentrated with mineral impurities.
During the harvest cycle fresh water flows into the machine to dilute the reservoir water and to rinse the concentrated minerals down the drain.
Schematic Diagram - Shown In
Harvest Cycle
Compressor
Evaporator
Water
Inlet
Cube Molds
Weep
Hole
Spray Jets
Water Tube
Reservoir
Condenser
September 2011
Page 14
Page 78
COMPONENT LOCATION
Curtain
Reservoir
DCE33
Door Gasket
Bin
Thermostat
Bracket
Control Box
Control Knob
Cover
Kickplate
September 2011
Page 15
Page 79
DCE33
MAINTENANCE AND CLEANING
What shouldn’t be done?
Never keep anything in the ice storage bin that is not ice; objects like wine or beer bottles are not only unsanitary, but the labels may slip off and plug up the drain.
Never allow the machine to operate without regular cleaning. The machine will last longer if it is kept clean. Regular cleaning should happen at least once per year, and preferably twice. Some water conditions will dictate even more frequent cleaning of the ice making section, and some carpets or pets will dictate more frequent cleaning of the condenser.
What should be kept clean?
There are 5 things to keep clean:
1. The outside cabinet & door.
2. The ice storage bin.
3. The condenser.
4. The ice making system.
5. The ice scoop.
How to clean the condenser.
The condenser is like the radiator on a car, it has fins and tubes that can become clogged. To clean:
1. Remove the kickplate.
2. Locate the condenser surface.
3. Vacuum the surface, removing all dust and lint. Caution: Do not dent the fins.
Condenser
Surface
4. Replace the kickplate.
Winterizing
1. Clean the machine as explained on the next page.
How to clean the cabinet.
Wipe off any spills on the surface of the door and handle as they occur. If anything spilled on the door or gasket dries onto the surface, wash with soap and warm water to remove.
How to clean the ice storage bin.
The ice storage bin should be sanitized occasionally. It is usually convenient to sanitize the bin after the ice making system has been cleaned, and the storage bin is empty.
A sanitizing solution can be made of 1 ounce of household bleach and two gallons of hot (95
0
F.) water. Use a clean cloth and wipe the
115 interior of the ice storage bin with the sanitizing solution, pour some of the solution down the drain. Allow to air dry.
Note: To use after winterizing,
reconnect pump hose and water line.
Repeat Initial Start Up.
0
F. -
September 2011
Page 16
2. Turn off the water supply.
3. Drain the water reservoir. See page 24, Spray Pump Repair and follow the instructions to remove the pump hose (step 2, bottom hose only).
4. Disconnect the incoming water line at the inlet water valve.
Inlet Water
Valve
Water Line
5. Remove control box cover and turn the timer into the harvest cycle.
6. With the machine operating, blow air through the inlet water valve; a tire pump could do the job.
1
7. Drain pump models should have about
gallon
2
of RV antifreeze (propylene glycol) poured into the ice storage bin drain.
Note: Automotive antifreeze must NOT be used.
8. Replace control box cover. Switch off and unplug the machine.
Page 80
CLEANING
DCE33
How to clean the ice making system.
1. Open the door and turn the ice machine control knob to off.
2. Scoop out all of the ice, either discard it or save it in a ice chest or cooler.
4. Turn the ice machine control to ON.
5. Allow the machine to operate for about 2 hours.
3. Pour 4 ounces of Scotsman Ice Machine Cleaner (available from a local Scotsman Distributor or Dealer, ask for part number 19-0343-06 - an 8 ounce bottle) into the ice machine reservoir.
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 skin contact, flush with water. Keep out of the reach of children.
0
6. Pour hot (95 melt the ice that has formed. That ice will likely be white and frosty looking.
7. Clean the bin liner of mineral scale by mixing some ice machine cleaner and hot water, and using that solution to scrub the scale off of the liner.
8. Rinse the liner with hot water.
9. Sanitize the bin interior.
10. Replace the ice removed in step 2.
The ice scoop should be washed regularly, wash it just like any other food container.
F.-1150F.) water into the bin to
September 2011
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DCE33
ADJUSTMENTS
There are three items that may be adjusted: Cube Size, Harvest Time, and Bin Level. Note: Cube Size and Harvest Time adjustments should only be done by a qualified service person.
Cube size control.
1. Open the door and remove the control box cover.
2. Locate the cube size adjustment screw, and to make fuller cubes, turn the screw clockwise about
SIDE VIEW OF CUBES
TOO
BIG
1/4 turn. This will make the freezing cycle longer.
3. To shorten the freezing cycle and make cubes that are not as full, turn the adjustment screw 1/4 turn counterclockwise.
4. After the next freezing cycle, the cubes should have responded to the adjustment, if another adjustment is required, do it early in the freeze cycle.
CORRECT
SIZE
CUBE SIZE ADJUSTMENT
TOO
SMALL
September 2011
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Page 82
ADJUSTMENTS
DCE33
Bin’s ice level.
When the ice machine shuts off the ice level in the bin should be even with the metal tube inside the bin. If the ice in the bin is too high or low, turn the ice machine control knob to adjust the bin thermostat.
1. To lower the ice level, turn the knob counterclockwise. Usually a 1/8 turn will be enough.
2. To increase the ice level, turn the knob clockwise. Usually a 1/8 turn will be enough.
Timer - up to DCE33A-1BD or DCE33PA-1BD
The amount of harvest time may be adjusted. It is preset from the factory at about 3 minutes, which should be adequate to release all cubes and fill the reservoir. If the timer needs to be adjusted:
Electrical Shock Hazard
Disconnect Electrical Power Before Beginning Removal of Parts
1. Unplug or disconnect the electrical power.
2. Remove the kickplate.
3. Remove the control box cover.
4. Locate the timer, and loosen the set screw that holds the two halves of the timer cam together.
Timer Set Screw
5. Rotate one half of the cam to open or close the lower portion of the cam. More of an opening equals more harvest time and less of an opening means less harvest time.
6. Tighten the set-screw.
7. Replace the control box cover and kickplate.
8. Reconnect the electrical power.
September 2011
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ADJUSTMENT OF THE TIMER
Page 83
DCE33
HARVEST TIME ADJUSTMENT, models DCE33A-1BD or DCE33PA-1BD
The harvest time can be adjusted so that all the ice is released during the harvest period, with a few seconds extra for a safety margin. The adjustment range is between 2 to 5 minutes.
There is an adjustment screw on the surface of the electronic timer. Rotate the screw CCW to reduce harvest time, and CW to increase it. It should be set to match the machine's performance. If the machine takes 2 and a half minutes to release the ice, the harvest time should be set to about 3 minutes.
September 2011
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DCE33
SERVICE DIAGNOSIS
PROBLEM POSSIBLE CAUSE PROBABLE CORRECTION
The machine does not operate The machine is unplugged Plug the machine in.
Breaker tripped or fuse is blown. Reset breaker/replace fuse - if it
happens again, call for service to check for a short circuit in the machine.
Ice machine control turned to OFF.
Bin thermostat open keeping machine off.
Timer contacts open. Replace timer.
Cubes are too big Cube size control set too cold. Adjust cube size control for a
Cubes are too small Cube size control set too warm. Adjust cube size control for a
Not enough water. Check water supply - filter may be
Cube size control stuck closed ­timer runs all the time.
Cubes are partially formed - have ragged sides
Machine makes ice, but bin does not fill up with ice
Cubes are partially formed - are white at the bottom
Spray jets partially clogged. Clean ice making system with ice
The bin should fill up and the machine shut off in 24-36 hours. If not, the condenser may be dirty.
The bin drain may be partially restricted
The air flow to the ice machine may be obstructed.
Not enough water in the reservoir. Check water supply - filter may be
Turn ice machine control to ON.
Ice on sensor tube - its then normal for the machine to be off.
Ice machine in a room below 50 degrees - room needs to be warmer for machine to operate.
Bin thermostat stuck open, needs to be replaced.
smaller cube.
larger cube.
restricted. Check inlet water valve - inlet
screen may be restricted. Replace cube size control
machine cleaner. Clean the condenser.
Clean out the drain, check the installation.
Check the installation - the machine must be free of obstructions at the kick plate.
restricted Check inlet water valve - inlet
screen may be restricted. Check for a water leak at the
reservoir. Water leaking into bin from torn or
mis-positioned curtain. Check curtain position and condition. Reposition or replace as needed.
September 2011
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DCE33
SERVICE DIAGNOSIS
PROBLEM POSSIBLE CAUSE PROBABLE CORRECTION
No ice falling in bin, but machine operates
Ice may be stuck in the evaporator and the unit is “frozen up”.
Too much heat load. Inlet water valve leaks thru, needs
No water spray Water pump does not work,
Cube size control will not close See “Too much heat load” or “not
No airflow Fan motor not turning, needs to
Not enough refrigerant Add low side access valve, locate
Restricted system Add low side access valve,
Hot gas valve leaks thru Add low side access valve,
Compressor will not operate or pumps poorly.
Check water supply - filter may be restricted
Check inlet water valve - screen may be restricted, or valve does not operate.
Hot gas valve may not operate ­check and repair/replace.
Harvest time set too short - timer needs adjustment.
to be replaced.
replace it. Water leak from reservoir, locate
and repair.
enough refrigerant” Control defective - must be
replaced.
be replaced. Fan blade broken, needs to be
replaced. Condenser completely blocked
up, needs cleaning.
leak, recover refrigerant, repair, replace dryer, evacuate and weigh in the nameplate charge.
recover refrigerant, replace dryer, evacuate and weigh in the nameplate charge.
recover refrigerant, replace hot gas valve and dryer, evacuate and weigh in the nameplate charge.
Start relay or capacitor needs to be replaced.
Add low side access valve, recover refrigerant, replace compressor and dryer, evacuate and weigh in the nameplate charge.
September 2011
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REPAIR
DCE33
Curtain
Electrical Shock Hazard
Disconnect Electrical Power Before Beginning Removal of Parts
The curtain keeps the water that sprayed by the pump from falling in the bin.
The “sheet” type curtain is replaced by:
1. Removing 4 screws holding the curtain and the curtain stiffener to reservoir.
2. Pulling the curtain and curtain stiffener out of the machine.
3. Replace with a new curtain and install as shown.
Inlet Water Valve
The inlet water valve may need to be cleaned or replaced. If there is not enough water coming into the machine, the valve may need to be cleaned. If the valve does not work at all, or does not shut off tightly, it should be replaced.
1. Unplug or disconnect electrical power.
2. Shut off water supply
3. Remove kickplate
4. Remove the control box cover.
5. Unscrew flare nut from inlet water valve inlet . If the valve is being replaced, proceed to step 10.
6. Unscrew brass fitting from body of inlet water valve.
SERVICE OF THE INLET
WATER VALVE
Inlet Water Valve
Curtain
Sheet Type:
Curtain
Stiffener
Bottom Edge
Angle to Rear
Curtain and Curtain Stiffener MUST Be Installed
As Shown
Curtain
Screw
Front Edge of
Reservoir
Screen
Inlet
Outlet
Check the screen of the valve, it may be clogged and is restricting the flow of water into the machine. If that is the problem, clean the screen and reverse the steps so far to reassemble.
7. Loosen the screws in the back of the control box, and remove the inlet water valve.
8. Remove the discharge hose from the outlet of the water valve.
9. Unplug the wire harness from the top of the valve.
10. Replace with a new valve, and reverse the above steps to reassemble.
September 2011
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DCE33
REPAIR
Timer - All except DCE33A-1BD or
Electrical Shock Hazard
Disconnect Electrical Power Before Beginning Removal of Parts
DCE33PA-1BD
The timer may need to be replaced if it does not turn, or if it turns and then stops (except at the end of the harvest cycle - the timer will ALWAYS stop at the end of the harvest cycle), or if the microswitch mounted to it does not switch the machine from the freeze to the harvest and back again.
Caution: The timer is controlled by the cube size control, and will not turn if the cube size control does not work.
1. Unplug or disconnect the electrical power to the ice machine.
2. Remove the kickplate.
Harvest Timer - DCE33A-1BD or DCE33PA-1BD
1. Disconnect electrical power.
2. Remove service panel.
3. Remove screw in center of timer, pull out and disconnect wires.
4. Reverse steps to reassemble.
3. Remove the control box cover.
4. Remove the screws holding the timer to the control box.
Timer
5. Disconnect the wires at the timer microswitch.
6. Disconnect the wires from the timer motor at the terminal board.
7. Remove the timer from the ice machine.
8. Reverse the above steps to replace.
September 2011
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Page 88
REPAIR
DCE33
Cube Size Control
Electrical Shock Hazard
Disconnect Electrical Power Before Beginning Removal of Parts
The cube size control controls the timer during the freeze cycle. If the timer will not start, the cube size control may be the problem. Removal of the cube size control requires removal of the ice storage bin.
1. Unplug or disconnect the electrical power to the ice machine.
2. Remove the kickplate.
3. Go thru the steps to remove the ice storage bin.
4. Remove screws holding cube size control body to control box.
5. Remove wires connected to the cube size control.
Bin Thermostat
The bin thermostat is the automatic on-off control for the ice machine.
1. Unplug or disconnect the electrical power to the ice machine.
2. Pull the machine out from its installed location.
3. Remove the back panel.
4. Remove the kickplate.
5. Remove the control knob
6.. Remove the control box cover.
7. Remove the screws holding the bin thermostat to the control box.
Capillary Tube
6. Carefully pull cube size control and attached capillary tube from the control box, and follow the capillary tube to the top of the evaporator.
7. The end of the cube size control is inserted into a socket attached to the evaporator.
8. Remove the cube size control from the socket and from the ice machine.
9. Reverse the above steps to replace.
CUBE SIZE CONTROL
REPLACEMENT
Socket
Pig Tail
Bin Thermostat
8. Remove the wires attached to the bin thermostat.
9. Pull the bin thermostat and capillary tube from the control box, trace the capillary tube to the bin level control tube and remove the capillary tube from the tube. Remove the bin thermostat from the ice machine.
10. Reverse the above steps to replace.
10. Adjust the cube size control per the adjustment sequence on page 16.
September 2011
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DCE33
REPAIR
Spray Pump
Electrical Shock Hazard
Disconnect Electrical Power Before Beginning Removal of Parts
The water pump that forces the water from the reservoir through the spray jets.
1. Disconnect electrical power.
2. Open the bin door and locate the three hoses connected to the water pump.
A. Loosen the hose clamps from the pump hoses.
B. Remove the pump hoses from their connections.
3. Disconnect water and drain tubes.
Pump Hose Removal
Spray Jets
Spray Jets are small nozzles that are under the freezing surface, they spray a narrow pattern of water at the freezing surface. If plugged or restricted, poorly shaped ice cubes will form.
If the spray jets are removed the o-rings between the water inlet tube and the spray jet bases must be in place (see illustration).
Curtain
Curtain Stiffener
Cap
Spinner
Jet Base
Reservoir
Body
Spray Pump
(for reference)
Suction
Hose
Reservoir
(for reference)
Hose Clamp
4. Carefully pull machine out from its installed location to expose the back panel.
5. Remove the back panel.
6. Disconnect wires from the top of the pump motor.
7. Remove two screws holding pump to bin, and remove the pump from the ice machine.
8. Reverse the above steps to re-assemble.
O-Ring
Pump
Discharge
Cube
Chute
O-Ring
Back view of
Reservoir
September 2011
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