Page 1Commercial Refrigerator Service Manual GLASS DOOR MERCHANDISER SMG72 Please read this manual completely before attempting to install or operate this equipment.
Page 2TABLE OF CONTENTS 1. FEATURE CHART 1-1. OUTSIDE DRAWING AND MEASUREMENTS FOR SMG72 2. WIRING DIAGRAM 2-1. REFRIGERATOR (3 DOORS): SMG72 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. COMPRESSOR RELAY 4-3. C
Page 43. PARTS DETAILS 3-1. FRONT PANEL THERMOSTAT MAIN SWITCH
Page 53-2. REFRIGERATION COMPARTMENT CYCLE ASSEMBLY CONDENSER FILTER DRIER CONDENSER FAN MOTOR WATER PAN COMPRESSOR
Page 6DRAIN PAN CONDENSER FAN MOTOR ASSEMBLY FAN COVER CONDENSER FAN MOTOR BLADE CONDENSER FAN MOTOR
Page 73-3. DOOR GASKET Magnetic gasket can be replaced without any tools.
Page 83-4. COOLING COMPARTMENT CIRCLE FAN COVER Circle Fan Cover CIRCLE FAN Evaporator Fan Motor Blade Evaporator Fan Motor Fan Cover
Page 9Evaporator Defrost Heating Element Evaporator Fan Fan Support
Page 104. MAIN COMPONENTS 4-1. COMPRESSOR MODEL SMG72 Refrigerant R-134a Voltage 115V/60Hz Comp. T6213Z Model Part code TPP93.02 4-2. COMPRESSOR RELAY SMG72 Voltage 115V / 60Hz Relay HLC-1XT04XA Model 4-3. CONDENSER DRYER MODEL SMG72 Refrigerant R-134a Spec. XH-9 25g Part code GN1410TN.14 4-4. CAPACITOR MO
Page 114-6. CONDENSER FAN MOTOR MODEL SMG72 Voltage 115V / 60Hz Motor CA27-04/C19 Model Part code 27F.11 4-7. EVAPORATOR DEFROST HEATER MODEL SMG72 Voltage 115V / 60Hz Spec. --- Part code --- 4-8. LAMP MODEL SMG72 Voltage 115V/60Hz Spec. T8 E32W L=850 Part code HGD-23R.17 4-9. MAIN PCB MODEL SMG72 Voltage
Page 125. ELECTRONIC CONTROLLER INSTRUCTION 5-1-1. DIXELL XR20C PARAMETER FOR REFRIGERATOR NO.1 SMG72 NO. Label Name Range Hidde Defau ℃ ℉ n lt Par. ℃/℉ 1 Set Set point LS-US -5/23 0 32 Differential 0.1-25.5℃/1- 2/35.6 2.5 5 2 Hy 255℉ Minimum set point -50℃-SET/- Yes -50/- -2 28 3 Ls 58℉-SET 58 Maximum set
Page 13cycles (Maximum) length for 0-255min 30 20 20 19 MdF defrost 21 DFd Display during defrost rt, it, Set, DEF Yes Set Set set MAX display delay after 0-255min Yes 30 30 30 22 dAd defrost Defrost delay after fast 0-23h n Yes 0.0 0 0 25 dAF freezing 50’ Temperature Alarm rE=related to Yes Ab re re 30 Al
Page 1442 dp2 Evaporator probe display - Yes P2 P2 P2 43 rEL Software release - Yes 4.2 4.2 4.2 44 Ptb Map code - Yes 83 83 83 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 occurre
Page 152. 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. 2.2 HOW TO CHANGE THE SET POINT 1. Push the SET key for more th
Page 166. 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 176-2. 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 186-2-4. UNSCREW THE FAN SUPPORT 6-2-5. CHANGE THE DEFROST HEATING ELEMENT. A. UNHOOK THE EVAPORATOR FROM ITS CASING.
Page 19B. TAKE OFF THE ELEMENT AND CHANGE IT. 6-3. CONDENSING UNIT 6-3-1. TAKE OFF THE BOTTOM PANEL.
Page 206-3-2. 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 PERFORME