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Saturn SMG12 Service Manual Digest

Commercial refrigerator glass door merchandiser
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Commercial Refrigerator
Service Manual
GLASS DOOR MERCHANDISER
SMG12
Please read this manual completely before attempting to install or operate this equipment.

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Summary of Contents for Saturn SMG12

  • Page 1 Commercial Refrigerator Service Manual GLASS DOOR MERCHANDISER SMG12 Please read this manual completely before attempting to install or operate this equipment.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS 1. FEATURE CHART 1-1. OUTSIDE DRAWING AND MEASUREMENTS FOR SMG12 2. WIRING DIAGRAM 2-1. REFRIGERATOR (1 DOOR): SMG12 3. PARTS DETAILS 3-1. BOTTOM PANEL 3-2. REFRIGERATION COMPARTMENT 3-3. DOOR 3-4. COOLING COMPARTMENT 4. MAIN COMPONENTS 4-1. COMPRESSOR 4-2.

  • Page 3: Feature Chart

    1. FEATURE CHART 1-1. OUTSIDE DRAWING OF SMG12 2. WIRING DIAGRAM 2-1. SMG12...

  • Page 4: Parts Details

    3. PARTS DETAILS 3-1. FRONT PANEL THERMOSTAT MAIN SWITCH...

  • Page 5: Refrigeration Compartment

    3-2. REFRIGERATION COMPARTMENT CYCLE ASSEMBLY CONDENSER FILTER DRIER CONDENSER FAN MOTOR WATER PAN COMPRESSOR...
  • Page 6 DRAIN PAN CONDENSER FAN MOTOR ASSEMBLY FAN COVER CONDENSER FAN MOTOR BLADE CONDENSER FAN MOTOR...

  • Page 7: Door

    3-3. DOOR GASKET Magnetic gasket can be replaced without any tools.

  • Page 8: Cooling Compartment

    3-4. COOLING COMPARTMENT CIRCLE FAN COVER Circle Fan Cover CIRCLE FAN Evaporator Fan Motor Blade Evaporator Fan Motor Fan Cover...
  • Page 9 Evaporator Defrost Heating Element Evaporator Fan Fan Support...

  • Page 10: Main Components

    4. MAIN COMPONENTS 4-1. COMPRESSOR MODEL SMG12 Refrigerant R-134a Voltage 115V/60Hz Comp. NE2121Z Model Part code 27R.33 4-2. COMPRESSOR RELAY SMG12 Voltage 115V / 60Hz Relay HLC-1XT04XA Model 4-3. CONDENSER DRYER MODEL SMG12 Refrigerant R-134a Spec. XH-9 25g Part code GN1410TN.14...

  • Page 11: Condenser Fan Motor

    4-6. CONDENSER FAN MOTOR MODEL SMG12 115V / 60Hz Voltage Motor CA27-04/C19 Model Part code 27F.11 4-7. EVAPORATOR DEFROST HEATER MODEL SMG12 Voltage 115V / 60Hz Spec. Part code 4-8. LAMP MODEL SMG12 115V/60Hz Voltage Spec. T8 28W Part code HGD-12R.21...

  • Page 12: Thermostat

    5. ELECTRONIC CONTROLLER INSTRUCTION 5-1-1. DIXELL XR20C PARAMETER FOR REFRIGERATOR NO.1 SMG12 ℃ ℉ Label Name Range Hidde Defau ℃ /℉ Par. Set point LS-US -5/23 Differential 0.1-25.5℃ /1- 2/35.6 255℉ -50℃ -SET/- Minimum set point -50/- 58℉ -SET Maximum set point...
  • Page 13 cycles (Maximum) length 0-255min defrost Display during defrost rt, it, Set, DEF MAX display delay after 0-255min defrost Defrost delay after fast 0-23h 50’ freezing Temperature Alarm rE=related to configuration set;Ab=absol MAX. temperature alarm SET- 110/23 110℃/SET- 230℉ MIN. temperature alarm -50℃-SET/- -50/- 58℉-SET...
  • Page 14 Evaporator probe display Software release Map code 5-1-2. 1. FRONT PANEL COMMANDS To display target set point, select a parameter or confirm an operation in programming mode. To start a manual defrost To view the last alarm occurrence. In programming mode, it browses the parameter codes or increases the display value To view the last alarm occurrence.
  • Page 15 2. MAIN FUNCTIONS 2.1 HOW TO VIEW THE SET POINT 1. Push and immediately release the SET key: the display will show the set point value. 2. Push and immediately release the SET key or wait for 5 seconds to display the sensor value again.

  • Page 16: Replacement Of Main Components

    6. REPLACEMENT OF MAIN COMPONENTS 6-1. FRONT PANEL PARTS 6-1-1. UNSCREW THE FRONT PANEL. 6-1-2. TAKE OFF THE FRONT PANEL 6-1-3. UNSCREW THE JUNCTION BOX. THE MAIN SWITCH, LIGHT SWITCH AND THERMOSTAT CAN BE CHANGED.

  • Page 17: Refrigeration Compartment Parts

    6-2. REFRIGERATION COMPARTMENT PARTS 6-2-1. UNSCREW THE SENSOR CLIP .TAKE THE SENSOR OUT FROM THE CLIP. 6-2-2. Unscrew the circle fan cover. 6-2-3. PULL DOWN THE CIRCLE FAN COVER.
  • Page 18 6-2-4. UNSCREW THE FAN SUPPORT 6-2-5. CHANGE THE DEFROST HEATING ELEMENT. A. UNHOOK THE EVAPORATOR FROM ITS CASING.

  • Page 19: Condensing Unit

    B. TAKE OFF THE ELEMENT AND CHANGE IT. 6-3. CONDENSING UNIT 6-3-1. TAKE OFF THE BOTTOM PANEL.
  • Page 20 6-3-2. UNSCREW THE UNIT BOARD. YOU CAN PULL THE UNIT BOARD OUT FOR ANY REPAIR OR CLEANING. CAUTION: BE CAREFUL OF ELECTRIC SHOCK CAUTION: MAKE SURE THE POWER SUPPLY IS CUT OFF BEFORE ANY SERVICE IS PERFORMED. CAUTION: CONDENSING UNIT MAY BE VERY HOT. BE SURE IT IS COOL BEFORE ANY SERVICE IS PERFORMED.

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