Scotsman SCCG50 Service Manual

Scotsman SCCG50 Service Manual

Scotsman ice machine service 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.
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
Gravity Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 11
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 12
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
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

Table of Contents

June 2008
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.
Page 1

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Table of Contents
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Summary of Contents for Scotsman SCCG50

  • Page 1: Table Of Contents

    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. Specifications ......... . Page 2 Cabinet Layout .
  • Page 2: Specifications

    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. July 2008 Page 2 SCCG50 & SCCP50 Service Manual Handle Finish White White White...
  • Page 3: Cabinet Layout

    SCCG50 & SCCP50 Service Manual Cabinet Layout FLOOR DRAIN 3 7/8" ACCESS HOLE 20 3/8" 14 7/8" 29 1/4" 4" 2 3/4" AIR IN AIR OUT 22" .75 SHEET METAL DOOR FRONT .63 MIN. CABINET DOOR 33 3/8" MIN. 34 3/8" MAX.
  • Page 4: Air Flow

    Restricting the airflow will adversely affect the ability of the ice machine to make ice. 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.
  • Page 5: Water Quality

    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.
  • Page 6: Door Covering

    6. Insert hole plug over screw installed in step 5. 7. Return the gasket to its original position. SCCG50 & SCCP50 Custom Panel A custom panel of wood or other material not exceeding 15 lb can be attached to the door.
  • Page 7: Door Panel Attachment

    SCCG50 & SCCP50 Service Manual Door Panel Attachment Gasket Machine Screw Hole Plug Cover Use Upper Hole at the Use Lower Hole at the Bottom June 2008 Page 7 Scotsman Door Panel...
  • Page 8: Custom Panel

    6 25/32" 13/16" 4 1/8" 13/32" 14 11/16" Ø 1/8" TYP. (10) 13 31/64" 13/32" June 2008 Page 8 SCCG50 & SCCP50 Service Manual 13 9/16" 8 1/4" 30 3/8" 29 3/8" {Centerline} 14 7/8"...
  • Page 9: Door Swing Change

    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...
  • Page 10: Installation: Water & Drain

    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. Back View, Drain Pump Model...
  • Page 11: Gravity Drain

    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.
  • Page 12: Electrical

    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.
  • Page 13: Cube Size Adjustment

    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.
  • Page 14: Harvest Time Adjustment

    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. Clean flash flash June 2008 Page 14 SCCG50 & SCCP50 Service Manual...
  • Page 15: Control Settings

    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.
  • Page 16: Use

    Set the timer to turn the machine off at the time(s) of day when the noise is most objectionable. SCCG50 & SCCP50 Normal cubes are tapered cylinders. If the cubes are ragged and mis-shaped, mineral scale must be...
  • Page 17: How To Clean The Condenser And Winterize

    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.
  • Page 18: How To Remove Scale From The Ice Making System

    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.
  • Page 19: System Information

    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 •...
  • Page 20: Water System

    The extra time is either pre-set or automatically determined by the controller. SCCG50 & SCCP50 Pump Freeze Cycle Water Schematic Inlet Water Solenoid Valve Harvest Cycle Water Schematic...
  • Page 21: Components

    SCCG50 & SCCP50 Service Manual Components Model and Serial Tag Location Scoop and Thermostat Bracket Control Panel, Bin Light and Curtain Evaporator Platen Evaporator and Controller Inlet Water Solenoid Valve Condenser and Bin Thermostat June 2008 Page 21...
  • Page 22: Controller

    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 Page 22 SCCG50 & SCCP50 Service Manual Thermostat Water Sensor Bin Light Control Panel...
  • Page 23: Performance Information

    SCCG50 & SCCP50 Service Manual Performance Information Freeze Cycle, Minutes 37-38 36-37 36-35 Water 32-33 Temperature 27-28 20-21 18-19 Harvest Cycle, Seconds 80 -100 55-60 70 - 80 65-75 Water Temperature 50 - 70 70-80 40 - 50 100-120 Total Cycle, Minutes...
  • Page 24: Refrigeration System

    Refrigeration System 1 50 1 40 1 30 1 20 1 1 0 1 00 Suction Pressure Time Discharge Pressure Time June 2008 Page 24 SCCG50 & SCCP50 Service Manual...
  • Page 25: Thermistor Values

    SCCG50 & SCCP50 Service Manual Thermistor Values Deg. F · Ohms Deg. F · Ohms 0· · · · 85325 52 · · · 18873 1· · · · 82661 S3 · · · 18381 54 · · · 17903 2·...
  • Page 26: Service Diagnosis

    Very low on refrigerant Cannot make ice Compressor not operating Hot gas valve leaks through during freeze Compressor inefficient SCCG50 & SCCP50 Probable Solution Check breaker or fuse. Reset or replace, restart and check Replace transformer Restore water supply Check curtain, sump...
  • Page 27: Service Diagnosis

    SCCG50 & SCCP50 Service Manual Service Diagnosis Makes excessive noise Problem Likely Cause Blade is bent Fan blade vibrates Fan motor mount is broken Compressor vibrates Mounting loose Water pump vibrates Pump bearings worn Panels vibrate Mounting screws loose Makes ice, does not harvest...
  • Page 28: Removal And Repair

    6. Remove two screws holding valve to chassis. 7. Squeeze hose clamp larger and push away from solenoid valve outlet. 8. Pull hose from outlet of valve. SCCG50 & SCCP50 9. Reverse to reassemble. Curtain 1. Shut unit off. 2. Loosen both thumbscrews holding curtain bracket to freezing chamber.
  • Page 29: Removal And Repair

    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.
  • Page 30: Removal And Repair - Cabinet Removal

    9. Remove top panel. 10. Remove controller box cover. 11. Disconnect thermistor from controller, pull wire back to suction line. Thermistor Connector SCCG50 & SCCP50 12. Remove curtain & hanger. 13. Locate elbows where water flows onto the evaporator platen. Inlet Elbow 14.
  • Page 31 SCCG50 & SCCP50 Service Manual 18. Remove two screws holding freezing compartment brace to cabinet, lift brace up. 19. Lift evaporator platen up and tilt back enough for bin assembly to clear the base. 20. Remove air baffle. 21. Unplug 7 wire harness connector (at back of bin).
  • Page 32: Refrigeration Service

    SCCG50 & SCCP50 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...

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Sccp50

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