Service Manual - SCC30

SCCG30 & SCCP30 This manual includes the information needed toService Manual install, start up and maintain the ice machine. Note any Caution or Warning indicators, as they provideIntroduction: notice of potential hazards. Keep this manual for future reference.This ice machine is the result of Scotsman’sdecades of experience as an industry leader in thedesign and manufacture of both commercial andresidential ice machines.Table of ContentsSpecifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2Cabinet Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3Air flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4Water Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 5Door Covering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 6Door Panel Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 7Custom Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 8Door swing change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 9Installation: Water & Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 10Gravity Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 11Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 12Cube Size Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 13Harvest Time Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 14Control Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 15Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 16How to clean the condenser and winterize. . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 17How to remove scale from the ice making system. . . . . . . . . . . . . . . . . . . . . . . . Page 18System Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 19Water System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 20Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 21Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 22Performance Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 23Refrigeration System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 24Thermistor Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 25Service Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 26Service Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 27Removal and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 28Removal and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 29Removal and Repair - Cabinet Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 30Refrigeration Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 32September 2009 Page 1

SCCG30 & SCCP30 Service ManualSpecificationsThis ice machine is designed to be used indoors, in Options:a controlled environment. It can be used in a widevariety of environmental conditions, but there are Door Panel kits:limits. Use outside of the listed limitations is misuseand will void the warranty. Finished door panels are available from Scotsman for attachment to the machine, or a custom panelAir temperature limits: can be made.The ice machine will operate adequately within the Kit Number Panel Finish Handle Finishlimits, but functions best in temperatures between Stainless Steel70 and 80 degrees F. KDFS Stainless Steel • Minimum – 50 degrees F. (10oC) Drain Conversion: • Maximum – 100 degrees F. (38oC) A gravity drain model can be converted to a drainWater temperature limits: pump model by installing a drain pump kit. The drain pump kit consists of a drain pump, wiring • Minimum – 40 degrees F. (4.5oC) harness and associated tubing. The kit number is • Maximum – 100 degrees F. (38oC) A39462-021.Water pressure limits: Warranty Information • Minimum – 20 psi (1.4 bar) Warranty information is supplied separately from • Maximum – 80 psi (5.5 bar) this manual. Refer to it for coverage. In general, the warranty covers defects in materials orBecause the ice machine is making a food product, workmanship and does not cover corrections ofthe water supply to the ice machine must be installation errors or maintenance.potable, or fit for human consumption.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 voltsModels: There are six models, all air cooled: • SCCPA30M-1SU – Pump model, stainless cabinet • SCCGA30M-1SU – Gravity drain model, stainless cabinet September 2009 Page 2

SCCG30 & SCCP30 Service Manual Cabinet Layout 3 7/8\" FLOOR DRAIN ACCESS HOLE20 3/8\" 14 7/8\" 22\" .75 SHEET METAL DOOR FRONT .63 MIN.CABINET DOOR 29 1/4\" 33 3/8\" MIN. DRAIN 34 3/8\" MAX. FLEXIBLE TUBING 3/8 I.D.PUMP MODEL (INCLUDED) 5/8 I.D.GRAVITY MODEL (NOT INCLUDED) POTABLE WATER INLET 1/4\" COMPRESSION FITTING AIR OUT 4\" 3 1/4\" AIR IN 2 3/4\" 2 1/2\" 1 1/2\" 1\" LEG ADJUSTMENT (4) PLACES 115 V 3 3/4\" POWER CORD 7 3/8\" September 2009 Page 3

SCCG30 & SCCP30 Service ManualAir flow On/Off SwitchThe machine takes in room temperature air at thelower right front and forces warm air out the lowerleft front. Restricting the airflow will adversely affectthe ability of the ice machine to make ice. Ice Making Area Warm Air Out Air IntakeScotsman Ice Systems are designed andmanufactured with the highest regard for safetyand performance. They meet or exceed thestandards of agencies like U.L.Scotsman assumes no liability or responsibility ofany kind for products manufactured by Scotsmanthat have been altered in any way, including theuse of any parts and/or other components notspecifically approved by Scotsman.Scotsman reserves the right to make designchanges and/or improvements at any time.Specifications and designs are subject to changewithout notice. September 2009 Page 4

SCCG30 & SCCP30Service ManualWater QualityAll water, including potable water supplied by Filters and Treatmentmunicipalities, contains some impurities orminerals. Water absorbs impurities from the air as In general, it is always a good idea to filter therain and/or as it flows through the ground. Some of water. A water filter, if it is of the proper type, canthe impurities are solid particles, these are known remove taste and odors as well as particles. Someas suspended solids, and a fine particle filter will methods of water treatment for dissolved solidsremove them. Other impurities are chemically include reverse osmosis, and polyphosphatebonded to the water molecules, and cannot be feeders.filtered out, these are called dissolved solids. RO WaterIce made by this machine will have a lower mineralcontent than the water it was made from. This is This machine can be supplied with Reversedue to the method of making ice. Purer water will Osmosis water. A reverse osmosis system shouldfreeze first in the ice making molds. The reason for include post treatment to satisfy the R.O. water’sthis is that anything dissolved in water lowers the potential aggressiveness. Deionized water is notwater’s freezing temperature. This concentrates recommended.most of the impurities in the ice machine waterreservoir where they may form hard deposits Because water softeners exchange one mineral forknown as scale. The machine dilutes the another, softened water may not improve waterconcentration of minerals by over-filling the conditions when used with ice machines. Wherereservoir during the harvest cycle (with the excess water is very hard, softened water could result inwater flowing down the drain). s. Between 2 and 4 white, mushy cubes that stick together.pints of water flow into the unit each cycle.Between 1 and 3.5 pints of that rinses the reservoir If in doubt about the water, contact a local point ofand goes down the drain. use water specialist for recommendations on water treatment.Some impurities will inevitably remain, and will stickto the parts in the machine, and will cause Installation Overviewmalformed ice cubes. Eventually, built up mineralscale can shorten machine life. The ice machine must:To keep the machine operating properly, these • be connected to cold, potable waterimpurities or minerals will have to be regularly • be connected to a draindissolved by an acid cleaning, using Scotsman Ice • be connected to the proper power supplyMachine Scale Remover. Directions for this may be • be able circulate air through the vents at thefound in the section under cleaning. front. Note: Do not build in so that the door is recessed. September 2009 Page 5

Door Covering SCCG30 & SCCP30Door Panel Service Manual Custom PanelThe ice machine is supplied without a conventional A custom panel of wood or other material notdoor covering so it can be decorated to the user’s exceeding 15 lb can be attached to the door.preference. Scotsman offers several coverings Attachment is from the ice side of the door. Holesincluding white, black and stainless steel. In are provided in the door for this purpose.addition, a custom built panel can be placed ontothe door. See instructions in information packet to create and attach a custom panel:Door Panel AttachmentTo attach a Scotsman supplied panel:Note: If door swing is to be changed, it must bedone before panel is attached.The panel will be held on by 6 sheet metal screwsand 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.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 Page 6

SCCG30 & SCCP30Service ManualDoor Panel Attachment Use Upper Hole at the Top Scotsman Door PanelGasket Machine Use Lower Screw Hole at the Hole Plug Bottom Cover September 2009 Page 7

Custom Panel SCCG30 & SCCP30 Service ManualA custom panel of wood or other material notexceeding 15 lb can be attached to the door. 10. Mount panel to door using wood screws orAttachment is from the ice side of the door. Holes supplied panel mounting screws.are provided in the door for this purpose. Note: When installed Ice machine must be adjustedTo create and attach a custom panel: for height to position top of door to desired clearance. • 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 13/16\" 6 25/32\" 13 9/16\"opening where ice machine will be 13/32\" 4 1/8\" 8 1/4\"(floor to bottom of countertop edge).2. Determine desired kickplatespace (from bottom of door to floor).This could be equal to the adjacentcabinet’s kickplate space or anotherspace the user wants.3. Subtract kickplate space fromcabinet opening.4. Subtract 1/8 or more for clearance 14 11/16\"space between top of door andbottom of countertop edge fromcabinet opening. This is themaximum door length.5. Cut panel to width. Ø 1/8\" TYP. (10)6. Cut panel to length (cabinet space 30 3/8\"- kickplate space - top clearance = 29 3/8\"length).7. Determine top of panel.8. Mark hole locations using drawing 13 31/64\"on the back of these instructions.Drawing assumes top of panel willbe flush with top of door. Measurehole locations from the top of thepanel.9. Drill pilot holes for wood screws. 13/32\" {Centerline}Use drill stop to prevent drilling 14 7/8\"through the panel. September 2009 Page 8

SCCG30 & SCCP30 4. Remove hole plugs or screws from unit's newService Manual hinge locations, set aside.Door swing change 5. Move screws loosened in step 1 to opposite location.Note: Prior models had separate hinge bracketsand different directions to change swing. 6. Install screws or plugs removed in step 4 to the unit's original hinge location to fill the holes.Moving the hinges allows the door to open fromeither the left or right side. Change swing before 7. Remove the upper hinge from the door andattaching door panel. move it to the door's opposite side, bottom location. Secure using the original screws.To change:1. Remove innermost screw holding each hinge to cabinet, loosen the other.Remove Note: If door panel is attached, it must be removed to access hinge screws and to reverse handle position. Loosen 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. 10. Attach the door to the cabinet using the original screws. Installation Notes Built In Situations: If a finished floor is to be2. Slide door to the side and remove from cabinet. installed in the area after the ice machine has been built in, shims the expected thickness of the floorPlug Pocket should be installed under the unit to keep the Cover 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.3. Remove plug and hinge pocket covers from Note: When installed in a corner, the door swing door. may be limited due to handle contact with the wall or cabinet face.Note: There are either plugs or screws in the holeswhere the hinges will mount. They must be moved. January 2012 Page 9

SCCG30 & SCCP30Service ManualDoor swing changeThe door can be attached to open with hinges on Note: If door panel is installed it must be removedthe left or right using new brackets shipped loose in to access hinge screws and to reverse handlethe ice bin. Retain all screws for re-use. position.To change: 8. Remove the upper hinge and move it to the door's opposite side, bottom location. Secure1. Remove innermost using the original screws. screw holding each hinge to cabinet, loosen 9. Remove the original lower hinge and move it to the other. the door's opposite side, upper location. Secure using the original screws.2. Slide hinges to the side and remove door from 10. Install a screw removed in step 2 in outermost cabinet. Remove hole of upper and lower cross braces. screws loosened in step 1 from both hinge brackets. 11. Attach the door to the cabinet using the original screws.3. Remove two screws securing top panel to back, pull top panel back and remove from 12. Return kickplate and front service panel to their cabinet. original positions and attach to the cabinet using the original screws. Door Hinge4. Remove two screws at Bracket Installation Notes the top and lift the door Built In Situations: If a finished floor is to be hinge bracket out of the installed in the area after the ice machine has been cabinet. Replace with the built in, shims the expected thickness of the floor one supplied loose with should be installed under the unit to keep the the machine. Fasten it to machine level with the planned floor level. the cabinet using the original screws. Installations on a slab: Use a pump model and pump the water to the point of drainage. Pump5. Return the top panel to the cabinet and fasten models will pump 1 story (10 feet) high. it with the original screws. Installations over a crawl space or basement:6. Remove kickplate and front service panel. Either gravity drain or pump model units may be used, if there is not enough room behind the7. Remove two front screws and two bottom machine for a drain/waste receptacle, the drain will screws holding the bottom cross brace to the have to be below the floor. cabinet. Replace the brace with the one supplied loose with the machine. Secure it Note: When installed in a corner, the door swing using the original screws. may be limited due to handle contact with the wall or cabinet face.Screw Below September 2011 Page 9

SCCG30 & SCCP30 Service ManualInstallation: Water & DrainWater Supply, all models: The recommended water Note: Do NOT connect water to tubing at the back,supply tubing is ¼ inch OD copper. Stainless steel the water inlet connection is at the front.flex or reinforced PVC tube may also be used.Install an easily accessible shut-off valve between Drainsthe supply and the unit. This shut-off valve shouldnot be installed behind the unit. There are two types of ice machine models, one that drains by gravity and one that has an internalNote: Do not use self-piercing type valves. drain pump.1. Remove the front service panel. Drain Pump Model drain installationScrew Securing Front 1. Locate the coil of 3/8” ID plastic drain tubing Service Panel secured to the back of the unit.2. Route the tubing 2. Route the plastic drain tube from the back of the through the right unit to the drain connection point. hole in the back to the inlet water IMPORTANT NOTE: Often an air gap is required by solenoid valve inlet local codes between the ice maker drain tube and at the front. the drain receptacle.3. Install a compression fitting on the tubing and connect to the inlet of the solenoid.Connect Water Here Water Inlet Tube (field supplied)Drain Tube,Route tobuilding drain Back View, Drain Pump Model September 2011 Page 10

SCCG30 & SCCP30 4. Connect a straight 5/8” barbed connector to theService Manual drain hose, securing with the clamp removed in step 4.Gravity Drain 5. Cut an 8” piece of 5/8” ID X 7/8” OD tygon (clearCaution: Restrictions in the drain system to the plastic) tubing. Slide one end of the tube onto themachine will cause water to back up into the ice outlet of the barbed connector and secure with astorage bin and melt the ice. Gravity drain tubing clamp. Leave the other end of the tube lying on themust be vented, have no kinks and slope to the floor of the base pan until the unit is positionedbuilding drain. Air gaps are typically required by over the floor drain.local code.1. Place the ice machine in front of the installationopening. Adjust leveling legs to the approximateheight.2. Remove the front service access panel and the 6. Route the drain tube. Either a) Insert the drainupper back panel. tube through the base pan into the floor drain or b) Route the drain tube through the left hole in theNote: If you are connecting a gravity drain model lower back panel and connect to barbed elbow andand the drain opening has been located in the floor secure with a clamp.under the base pan according to the pre installspecifications, follow steps 3 through 5 to drain the 7. Reinstall the upper back panel.unit through the base. If not, proceed to step 6b. 8. Reinstall the service access panel. Level the unit.3. Remove the clamp and barbed elbow and takeoff the plastic cover in the base pan below the drainhose. Drain Hose Barbed Elbow Water Inlet Tube (field supplied)Drain Hose,Route tobuilding drain Back View, Gravity Drain Model September 2009 Page 11

SCCG30 & SCCP30 Service ManualElectrical & Start UpThe ice machine is supplied with a power cord. Do Initial Start Upnot remove the grounding pin from the cord’s plug. 1. Turn on the water supply.Do not use extension cords. Follow all codes. 2. Switch on the electrical power.Connect the machine to its own 115 volt, 15 ampcircuit.1. If the electrical outlet for the ice maker is 3. Move the On/Off switch to the ON position. 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. 4. The compressor will start and water will begin to flow into the unit. When the reservoir is full,7. Level the unit as needed. water will start to drain from the machine. After a few minutes the water pump and fan motorInstallation check list: will begin to operate and the first ice making1. Has the unit been connected to the proper cycle will have begun. water supply? No adjustments are needed.2. Has the water supply be checked for leaks?3. Has the unit been connected to a drain? After about a half hour, ice will fall into the ice4. Has the drain been tested for flow and leaks? storage bin. The machine makes 12 cubes per5. Has the unit been connected to the proper batch. It is normal for the first batches of ice to melt, that continues until the bin has cooled. It will electrical supply? take 16 to 24 hours of continuous run time to fill the6. Has the unit been leveled? 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.7. Have all packing materials been removed from the machine?H8.as the door covering been installed? September 2009 Page 12

SCCG30 & SCCP30 Side Views of CubesService Manual Too Small, Adjust Cycle LongerCube Size AdjustmentThe size of the ice cubes is determined by howlong the ice machine is in the freezing cycle. Thatis controlled by the cube size thermostat.The cube size thermostat's sensing portion isattached to the suction tube, near the outlet of theevaporator. As the machine makes ice, thetemperature of the suction tubing falls. When itreaches a preset point, the thermostat's contactsclose and connect power to the electronic timer.The electronic timer finishes the freeze cycle.AdjustmentThere is only one proper ice cube size, see thediagram to the right. If the cubes are not the correctsize, adjust the cube size thermostat. Just RightRotate the cube size thermostat's adjustment Too Large, Adjust Cycle Shorterscrew clockwise to increase the size of the cube.Rotate the cube size thermostat's adjustmentscrew counter clockwise to make the ice cube sizesmaller.September 2009 Page 13

SCCG30 & SCCP30 Service ManualHarvest Time AdjustmentThe harvest time can be adjusted so that all the iceis released during the harvest period, with a fewseconds extra for a safety margin. The adjustmentrange is between 2 to 5 minutes.There is an adjustment screw on the surface of theelectronic timer. Rotate the screw CCW to reduceharvest time, and CW to increase it. It should beset to match the machine's performance. If themachine takes 2 and a half minutes to release theice, the harvest time should be set to about 3minutes.September 2009 Page 14

SCCG30 & SCCP30Service ManualUseNo special instructions are needed for use. Justtake as much ice as you need, the machine willreplace it. A scoop is provided, and it can be storedin the machine using the loop of tubing on the rightside as a holder.The machine can be shut off anytime by movingthe On/Off switch to OFF.. The machine will shutoff immediately.What shouldn’t be done? Normal cubes are tapered cylinders. If the cubes are ragged and mis-shaped, mineral scale must beNever keep anything in the ice storage bin that isnot ice. Objects like wine or beer bottles are not removed from the ice making systemonly unsanitary, but the labels can slip off and plugup the drain. MaintenanceNever allow the machine to operate without regular There are 5 things to keep clean:cleaning. The machine will last longer if it is keptclean. Regular cleaning should happen at least 1. The outside cabinet & door.once per year, and preferably twice. Some waterconditions will dictate even more frequent cleaning 2. The ice storage bin.of the ice making section, and some carpets orpets will dictate more frequent cleaning of the 3. The condenser.condenser. 4. The ice making system.Noise: 5. The ice scoop.The ice machine is designed for quiet operation,but will make some noise during the ice making How to clean the cabinet.cycle. During a freezing cycle, it is normal to hearthe fan moving air and the water pump circulating Wipe off any spills on the surface of the door andwater. Ice hitting the bin or ice in the bin can be handle as they occur. If anything spilled on theheard during harvest. door or gasket dries onto the surface, wash with soap and warm water to remove.If ice making noise is objectionable, an appliancegrade timer can be added to the power supply. Set How to clean the ice storage bin.the timer to turn the machine off at the time(s) ofday when the noise is most objectionable. 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 (95oF. – 115oF.) 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

SCCG30 & SCCP30 Service ManualHow to clean the condenser and winterize.Condenser cleaning WinterizingThe condenser is like the radiator on a car, it has 1. Clean the ice making system.fins and tubes that can become clogged with dirtand lint. To clean: 2. Open the door and push and release the On/Off switch to turn the machine off.1. Remove the kickplate and front service panel. 3. Turn off the water supply.2. Locate the condenser surface. 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 Cap3. Vacuum the surface, removing all dust and lint. 5. Disconnect the incoming water line at the inlet water valve.Caution: Do not dent the fins. 6. Open the door, push and release the on/off4. Return the kickplate and front service panel to switch to turn the machine on.their original positions. Fasten them to the cabinetusing the original screws. 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 Page 16

SCCG30 & SCCP30Service ManualHow to remove scale from the ice making system.1. Scoop out all of the ice, either discard it or saveit in an ice chest or cooler.2. Switch the machine Off.3. Pour 8 ounces of Scotsman Ice Pour ScaleMachine Scale Remover Remover Here(available from a local ScotsmanDistributor or Dealer) into the icemachine reservoir.4. Switch the machine On.5. Operate the machine for about2 hours.6. Pour a gallon of hot (95oF. –115oF.) water into the bin to meltice formed during the cleaningprocess and to flush out the drain.7. Clean the bin liner of mineralscale by mixing some ice machinescale remover and hot water, andusing that solution to scrub thescale off of the liner.8. Rinse the liner with hot water.9. Sanitize the bin interior.10. Replace the ice removed in step 1.The ice scoop should be washed regularly, wash itjust like any other food container. September 2009 Page 17

System Information SCCG30 & SCCP30Overall: Service Manual Electrical Sequence: • Refrigerant: 8 oz R-134a The machine uses a temperature initiated, timed • Compressor: Hermetic, 700 BTUH cycle to make ice. • Condenser: Forced draft • Fan blade: 3 blade, 6 inch A closed bin thermostat connects power to the • Evaporator: Inverted, 12 cube cells. copper, compressor and electronic timer. The timer NO contacts close, connecting power to the water and continuous serpentine hot gas solenoids. • Metering device: Cap tube • Defrost method: Hot gas bypass with water The compressor starts, the inlet water solenoid valve opens and fills the reservoir. The harvest assist timer starts. At the end of the pre-set harvest time, • Spray method: 6 water jets the timer will open the NO contacts, stopping the • Water charge: 30 ounces inlet water valve and hot gas valve. At the same • Water valve: 115 volt solenoid, .19 GPM time, it closes the NC contacts, powering the fan • Water fill time: Varies with harvest time and pump motors. This is the beginning of the • Spray pump: Pedestal type. freeze cycle. • Drain pump: Magnetic drive, controlled by The freeze cycle continues until the cube size pressure switch contacts close, this starts a freeze timer. No other • Purge method: Overflow standpipe changes occur until the freeze timer expires, when • Control method: Electronic timer with electro the NC contacts open and the NO contact close, starting the harvest cycle. mechanical cube size thermostat • Cycle control: Reverse acting thermostat The harvest cycle is time controlled. At the end of • Cube size adjustment: Thermostat cut in the harvest cycle the unit returns to a freeze cycle. change Bin control. • Harvest cycle adjustment: Harvest timer The machine's on and off modes are regulated by a change, range between 2 and 5 minutes. bin thermostat. The cap tube for the bin thermostat • Bin control: Thermostat. Opens on is in the tube that holds the scoop. The machine will only begin ice making when the thermostat's temperature fall, Cut Out: 35 degrees F. Cut contacts close. The machine will stop ice making In 45 degrees F. Range is adjustable. whenever the bin thermostat contacts open.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 September 2009 Page 18

SCCG30 & SCCP30 StandpipeService ManualWater SystemThe water system consists of a water pump, inletwater solenoid valve, reservoir with overflowstandpipe and spray platform.Harvest cycle: The inlet water solenoid valve isopen during the harvest cycle. Water flows throughit to the top of the machine and onto the evaporatorplaten. The water flows across the platen, warmingit up to assist in releasing the ice. Water drainsfrom the platen through drain holes at the platencorners. That water, now chilled by contact with theevaporator platen, drains into the reservoir. Whenthe reservoir is full, excess water drains out thestandpipe. When harvest is complete, the inletwater solenoid closes and water stops flowing intothe machine.Freeze cycle: The water pump takes water from Inlet Water Solenoid Valvethe reservoir and forces it through the 6 spray jets, Harvest Cycle Water Schematiccausing the water to contact the inverted cups ofthe evaporator. Unfrozen water falls back into the Evaporatorreservoir. As ice forms in the cups, the water levelin the reservoir fails. This continues until the Pumpharvest cycle starts. Reservoir Drain Freeze Cycle Water SchematicSeptember 2009 Page 19

SCCG30 & SCCP30 Service ManualComponentsBin Thermostat Bracket and Scoop Model and Serial Tag Location Model and Serial Plate Location Evaporator Platen Evaporator & Top of UnitInlet Water Solenoid Valve Condenser and Bin Thermostat September 2009 Page 20

SCCG30 & SCCP30Service ManualPerformance InformationListed cycle times are after the 3rd consecutive cycle, will vary a minute or so, and will be longer for builtin units.Freeze Cycle, Minutes 100 90 Air Temperature 60 50 60 46 80 70 42 40 100 54 44 45 43 38 36 45 40 42 40 35 34 90 40 37 38 37 32 30 31 30 35 33 24 23Water 80 24 23 27 26 20 19Temperature 70 23 21 22 21 18 18 60 20 19 50 40Harvest time is usually 2 minutes, longer in verycold conditions.Total Cycle, Minutes 100 90 Air Temperature 60 50 62 48 80 70 44 42 100 56 46 47 45 40 38 47 42 43 42 37 36 90 42 39 39 39 33 32 32 32 37 35 26 23Water 80 26 25 29 26 22 24Temperature 70 25 22 23 23 24 23 60 22 21 50 40Ice per cycle: 1/2 lbWater drained / cycle: Varies by harvest cyclelength and purge setting. Typically about 3 pints.Compressor amps: 2.9 - 3.1 September 2009 Page 21

SCCG30 & SCCP30 Service ManualRefrigeration System Suction Pressure 70PSIG 60 50 Time 40 30 Discharge Pressure 20 10PSIG 0 140 120 100 80 60 40 20 0 Time September 2009 Page 22

SCCG30 & SCCP30Service ManualService DiagnosisNo IceProblem Likely Cause Probable SolutionNo power to unit Power disconnected Check breaker or fuse. Reset or replace, restart and checkVery long freeze cycle Dirty condenser Clean condenserCannot make ice Restricted location, intake air too Eliminate restriction, have machine hot or blocked moved Evaporator thermostat not sensing properly Check thermostat Spray jets dirty Inlet water valve leaks through Remove spray platform and clean during freeze spray jets Low on refrigerant Check inlet water valve Connected to hot water Check cube formation, Spray pump not pumping Check for bleed thru from / missing Fan motor not turning check valve in building water Pump hose disconnected supply Water leak Check pump motor Check fan motor, check fan blade Very low on refrigerant Check hose Check curtain, sump drain cap Compressor not operating Add access valve, add refrigerant as a test. If unit makes ice, find and Hot gas valve leaks through during correct leak. freeze Check compressor start components Compressor inefficient 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 Page 23

Service Diagnosis SCCG30 & SCCP30Makes excessive noise Service ManualProblem Likely Cause Probable Solution Blade is bent Replace fan bladeFan blade vibrates Fan motor mount is broken Replace motor mount Mounting loose Check mountingCompressor vibrates Pump bearings worn Replace pumpWater pump vibrates Mounting screws loose Tighten screwsPanels vibrate Probable SolutionMakes ice, does not harvest Adjust cube size Check voltage to coil when unit isProblem Likely Cause in harvest, check controllerIce wrong size Environment changed indicator light. Adjust harvest timeLittle heat to evaporator Hot gas valve does not open Water temperature very low Probable Solution Clean jetsMakes poor quality ice Correct leak Treat waterProblem Likely CauseSpray pattern poor Spray jets dirty Probable SolutionRuns out of water Water leaking from reservoir Check for kinks or trapsHigh TDS water supply Groundwater supply Check / replace switchMakes ice, but melts rapidlyProblem Likely CauseRestricted drain, water in Gravity drain hose has air blockbin Pump model switch not starting pump September 2009 Page 24

SCCG30 & SCCP30 9. Reverse to reassemble.Service ManualRemoval and RepairBin Thermostat1. Disconnect electrical power. Curtain 1. Shut unit off.Electrical Shock 2. Loosen both thumbscrews holding curtainHazard. bracket to freezing chamber.Disconnect electricalpower before 3. Pull out and remove curtain with bracket from icebeginning removal machine.2. Remove service panel. 4. Reverse to reassemble.3. Remove back panel. Spray PlatformNote: If unit is built in it must be pulled out to 1. Remove curtain.change the bin thermostat. 2. Lift spray platform up until it disconnects from its fitting.4. Pull cap tube out from the back of the ice 3. Pull forward and remove from the ice machine.storage bin and cap tube holder. 4. Reverse to reassemble.5. Remove two screws and the bin thermostat Water Pumpcontact section from its mounting bracket. 1. Disconnect electrical power. 2. Remove spray platform6. Disconnect two wires from the bin thermostat 3. Remove back panel.contact section and remove the thermostat fromthe ice machine. Note: If unit is built in it must be pulled out to change the water pump.7. Reverse to reinstall. 4. Disconnect power and ground wires from pumpInlet Water Solenoid Valve motor.1. Disconnect electrical power.2. Remove service panel.3. Shut water supply OFF.4. Disconnect inlet water supply tube from inlet 5. Rotate pump body CW and lift up to remove it.water solenoid valve. 6. Reverse to reassemble.5. Unplug wire harness from valve coil.6. Remove two screws holding valve to chassis.7. Squeeze hose clamp larger and push away fromsolenoid valve outlet.8. Pull hose from outlet of valve. September 2009 Page 25

Removal and Repair SCCG30 & SCCP30Cube Size Thermostat Service Manual 9. Disconnect wires from cube size thermostat.1. Disconnect unit from electrical power. 10. Remove two screws holding cube size thermostat to bracket. Pull cube size thermostat from the machine. Electrical Shock 11. Route new cube size thermostat bulb and cap Hazard. tube from the front, through the hole in the air baffle Disconnect electrical and into the back of the unit. power before beginning removal 12. Attach cube size thermostat to thermostat bracket, attach wires.2. Remove door. Note: Replacement thermostat wiring may be3. Remove top panel. different from the original. Check for instructions.4. Remove service panel. 13. Attach bracket to cabinet.5. Remove back panel. 14. Route cube size cap tube and bulb up the back of the machine and into the evaporator area.6. Cut cable tie holding cube size bulb inevaporator well. Pull bulb out of well. 15. Insert bulb into evaporator well. Secure with tie wrap. 16. Return all panels to their normal positions ans secure with the original screws.Bulb Well 17. Reconnect power. Test machine, adjust cube size as needed.7. Pull cube size cap tube and bulb from Harvest Timerevaporator area and allow to hang freely behind 1. Disconnect electrical power.machine.8. Remove two screws holding thermostat bracketto cabinet. Drop bracket down and pull forward toget access to wires and screws. 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 Page 26

SCCG30 & SCCP30 12. Pull clip up and pull water inlet elbow out ofService Manual inner elbow.Removal and Repair - Cabinet RemovalCertain components require the removal of thecabinet for repair access.1. Shut machine off, if making ice, melt ice with hot 13. Push inner elbow back and rotate it until itwater. points straight up, then push it back through the hole in the back of the freezing compartment.2. Remove all ice.3. Drain reservoir. Inlet Elbow4. Remove service panel and kick plate.5. Remove back panel. Inner6. Disconnect electrical power. Elbow Clip Electrical Shock Hazard. Disconnect electrical power before beginning removal7. 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. Bracket11. Locate elbows where water flows onto theevaporator platen. September 2009 Page 27

15. Lift evaporator platen up and tilt back enough SCCG30 & SCCP30for bin assembly to clear the base. 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.16. Remove air baffle. Air Baffle17. Unplug wire harness connector (at back of bin). September 2009 Page 28

SCCG30 & SCCP30Service ManualRefrigeration ServiceThis ice machine use R-134a type refrigerant.There are specific rules for handling thatrefrigerant.To check for system pressures, add a field suppliedclamp-on type service valve as a temporary meansof system access. After diagnosis and before finalrepair, replace the clamp-on type valve with valvesthat are brazed onto the process tubes of thesystem.Use a low flow of dry nitrogen when brazing on thesystem.Install a new filter drier when replacing arefrigeration component or after a refrigerant leakrepair.Evacuate the system to at least 300 microns anduse a micron gauge to measure the evacuationlevel.Weigh in the nameplate charge. The machine iscritically charged and a partial ounce mis-chargewill affect performance. September 2009 Page 29