Hoshizaki IM-240DME Service Manual
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Hoshizaki IM-240DME Service Manual

Hoshizaki IM-240DME Service Manual

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See also: Instruction Manual , Installation Manual
STACKABLE CUBER
STACKABLE CUBER
MODEL
MODEL
SERVICE MANUAL
SERVICE MANUAL
HOSHIZAKI
HOSHIZAKI
IM-240DME
IM-240DME
IM-240DWME
IM-240DWME
IM-240DSME
IM-240DSME
IM-240XME
IM-240XME
IM-240XWME
IM-240XWME
IM-240XSME
IM-240XSME
IM-240AME
IM-240AME
NO.
NO.
E1CG-488
E1CG-488
ISSUED:
ISSUED:
MAR. 10, 1999
MAR. 10, 1999
REVISED: OCT. 10, 2002
REVISED: OCT. 10, 2002

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  • Page 1 E1CG-488 E1CG-488 ISSUED: ISSUED: MAR. 10, 1999 MAR. 10, 1999 REVISED: OCT. 10, 2002 REVISED: OCT. 10, 2002 HOSHIZAKI HOSHIZAKI STACKABLE CUBER STACKABLE CUBER IM-240DME IM-240DME MODEL MODEL IM-240DWME IM-240DWME IM-240DSME IM-240DSME IM-240XME IM-240XME IM-240XWME IM-240XWME IM-240XSME IM-240XSME IM-240AME IM-240AME...

  • Page 2: Table Of Contents

    I. SPECIFICATIONS I. SPECIFICATIONS --------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------1 1 1. DIMENSIONS/CONNECTIONS 1. DIMENSIONS/CONNECTIONS ------------------------------------------------------------------ ------------------------------------------------------------------1 1 [a] IM-240DME (Air-cooled) [a] IM-240DME (Air-cooled) ----------------------------------------------------------------------- -----------------------------------------------------------------------1 1 [b] IM-240DWME (Water-cooled) [b] IM-240DWME (Water-cooled) ---------------------------------------------------------------- ----------------------------------------------------------------2 2 [c] IM-240DSME (Remote Air-cooled) [c] IM-240DSME (Remote Air-cooled)----------------------------------------------------------...
  • Page 3 ---------------------------------------------------------------------- 54 1. WATER CIRCUIT AND REFRIGERANT CIRCUIT 1. WATER CIRCUIT AND REFRIGERANT CIRCUIT ----------------------------------------- ----------------------------------------- 54 [a] IM-240DME, IM-240XME, IM-240AME (Air-cooled) [a] IM-240DME, IM-240XME, IM-240AME (Air-cooled) ---------------------------------- ---------------------------------- 54 [b] IM-240DWME, IM-240XWME (Water-cooled) [b] IM-240DWME, IM-240XWME (Water-cooled) ------------------------------------------ ------------------------------------------ 55...
  • Page 4 9. PUMP MOTOR 9. PUMP MOTOR ------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------- 84 10. WATER VALVE 10. WATER VALVE ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ 85 11. ACTUATOR MOTOR 11. ACTUATOR MOTOR ----------------------------------------------------------------------------- ----------------------------------------------------------------------------- 86 12. CAM ARM 12. CAM ARM ------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------- 87 [a] CAM ARM (A) - ACTUATOR MOTOR SIDE [a] CAM ARM (A) - ACTUATOR MOTOR SIDE -------------------------------------------- -------------------------------------------- 87 [b] CAM ARM (B) - REAR SIDE...

  • Page 5: Specifications

    I. SPECIFICATIONS I. SPECIFICATIONS 1. DIMENSIONS/CONNECTIONS 1. DIMENSIONS/CONNECTIONS [a] IM-240DME (Air-cooled) [a] IM-240DME (Air-cooled) E1CG4880210 E1CG4880210...

  • Page 6: [B] Im-240Dwme (Water-Cooled) [B] Im-240Dwme (Water-Cooled)

    [b] IM-240DWME (Water-cooled) [b] IM-240DWME (Water-cooled) E1CG4880210 E1CG4880210...

  • Page 7: [C] Im-240Dsme (Remote Air-Cooled) [C] Im-240Dsme (Remote Air-Cooled)

    [c] IM-240DSME (Remote Air-cooled) [c] IM-240DSME (Remote Air-cooled) E1CG4880210 E1CG4880210...

  • Page 8: [D] Im-240Xme (Air-Cooled) [D] Im-240Xme (Air-Cooled)

    [d] IM-240XME (Air-cooled) [d] IM-240XME (Air-cooled) E1CG4880210 E1CG4880210...

  • Page 9: [E] Im-240Xwme (Water-Cooled) [E] Im-240Xwme (Water-Cooled)

    [e] IM-240XWME (Water-cooled) [e] IM-240XWME (Water-cooled) E1CG4880210 E1CG4880210...

  • Page 10: [F] Im-240Xsme (Remote Air-Cooled) [F] Im-240Xsme (Remote Air-Cooled)

    [f] IM-240XSME (Remote Air-cooled) [f] IM-240XSME (Remote Air-cooled) E1CG4880210 E1CG4880210...
  • Page 11 [g] IM-240AME (Air-cooled) [g] IM-240AME (Air-cooled) E1CG4880210 E1CG4880210...

  • Page 12: Condenser Unit Urc-240C

    2. CONDENSER UNIT URC-240C-E 2. CONDENSER UNIT URC-240C-E SPECIFICATIONS SPECIFICATIONS MODEL: URC-240C-E MODEL: URC-240C-E EXTERIOR EXTERIOR Painted Galvanized Steel Painted Galvanized Steel DIMENSIONS (W x D x H) DIMENSIONS (W x D x H) 657 x 399 x 426 mm 657 x 399 x 426 mm REFRIGERANT CHARGE REFRIGERANT CHARGE...

  • Page 13: General Information

    II. GENERAL INFORMATION II. GENERAL INFORMATION 1. CONSTRUCTION 1. CONSTRUCTION [a] IM-240DME, IM-240XME [a] IM-240DME, IM-240XME Louver, Air Filter Louver, Air Filter Top Panel Top Panel Power Cord Power Cord Condensing Unit Condensing Unit Front Panel Front Panel Bin Door...

  • Page 14: [B] Im-240Dwme, Im-240Xwme [B] Im-240Dwme, Im-240Xwme

    [b] IM-240DWME, IM-240XWME [b] IM-240DWME, IM-240XWME Top Panel Top Panel Power Cord Power Cord Condensing Unit Condensing Unit Front Panel Front Panel Bin Door Bin Door Handle Handle Storage Bin (Optional) Storage Bin (Optional) Adjustable Legs Adjustable Legs Water Valve Water Valve Actuator Toggle Switch Actuator Toggle Switch...

  • Page 15: [C] Im-240Dsme, Im-240Xsme [C] Im-240Dsme, Im-240Xsme

    [c] IM-240DSME, IM-240XSME [c] IM-240DSME, IM-240XSME Top Panel Top Panel Remote Condenser Unit Remote Condenser Unit Power Cord Power Cord Condensing Unit Condensing Unit Front Panel Front Panel Bin Door Bin Door Handle Handle Storage Bin (Optional) Storage Bin (Optional) Adjustable Legs Adjustable Legs Water Valve...
  • Page 16 [d] IM-240AME [d] IM-240AME Top Panel Top Panel Front Panel Front Panel Bin Door Bin Door Handle Handle Storage Bin (Optional) Storage Bin (Optional) Adjustable Legs Adjustable Legs Power Cord Power Cord Compressor Compressor Hot Gas Valve Hot Gas Valve Fan Motor Fan Motor Water Valve...

  • Page 17: Controller Board

    2. CONTROLLER BOARD 2. CONTROLLER BOARD IMPORTANT IMPORTANT If receiving a service call, ask the user to turn off the power to the icemaker and If receiving a service call, ask the user to turn off the power to the icemaker and turn it on again, while watching the icemaker.

  • Page 18: [A] Controller Board Layout [A] Controller Board Layout

    [a] CONTROLLER BOARD LAYOUT [a] CONTROLLER BOARD LAYOUT Thermistor (Cube Control) Thermistor (Cube Control) Backup Timer VR3 Backup Timer VR3 Connector K4 Connector K4 Cube Control VR5 Cube Control VR5 Defrost Control VR2 Defrost Control VR2 Reset Switch Reset Switch Water Supply Time Water Supply Time Setting Jumper...
  • Page 19 See the diagram on the right for layout of the See the diagram on the right for layout of the Controller Board. Controller Board. Variable Resistor Variable Resistor No. 2 through No. 5 adjustable No. 2 through No. 5 adjustable K: K: Connector Connector...

  • Page 20: [B] Before Checking Controller Board [B] Before Checking Controller Board

    [b] BEFORE CHECKING CONTROLLER BOARD [b] BEFORE CHECKING CONTROLLER BOARD Check the power source voltage and the components as shown in the table below. Check the power source voltage and the components as shown in the table below. Component Component Procedure Procedure Normal...

  • Page 21: [C] Sequence - Led Indicators On/Off Pattern [C] Sequence - Led Indicators On/Off Pattern

    [c] SEQUENCE - LED INDICATORS ON/OFF PATTERN [c] SEQUENCE - LED INDICATORS ON/OFF PATTERN E1CG4880210 E1CG4880210...

  • Page 22: [D] Fault Diagnosis [D] Fault Diagnosis

    Controller Board may be at fault. REMEMBER REMEMBER: : Hoshizaki controllers are very reliable. They also control every component’s Hoshizaki controllers are very reliable. They also control every component’s operation. So if a component malfunctions, the controller will respond.
  • Page 23 INTERLOCK INTERLOCK WATER TANK WATER TANK PATTERN PATTERN POSSIBLE CAUSE POSSIBLE CAUSE REMEDY REMEDY INDICATOR INDICATOR POSITION POSITION Clean or replace Clean or replace Clogged Air Filter and/or Clogged Air Filter and/or Condenser Condenser Replace Replace Water leak from Water Water leak from Water Freeze Cycle Freeze Cycle...
  • Page 24 [e] CONTROLS AND ADJUSTMENT [e] CONTROLS AND ADJUSTMENT 1) Cube Control (VR5) 1) Cube Control (VR5) A cube control on the Controller Board is factory adjusted to produce constant cubes all year A cube control on the Controller Board is factory adjusted to produce constant cubes all year around.
  • Page 25 3) Defrost Control (VR2) 3) Defrost Control (VR2) The defrost control regulates the time period between ice-drop and actuator motor restart. The defrost control regulates the time period between ice-drop and actuator motor restart. Any adjustment will not be required for normal operation. Factory setting is shown in the table Any adjustment will not be required for normal operation.

  • Page 26: Fan Motor Control - Dme/Xme/Ame Only

    3. FAN MOTOR CONTROL - DME/XME ONLY 3. FAN MOTOR CONTROL - DME/XME ONLY The Condenser Fan Motor rotates at two speeds. The Motor is operated by Relay X6 which The Condenser Fan Motor rotates at two speeds. The Motor is operated by Relay X6 which is in turn controlled by the Bimetal Thermostat which is attached to the Control Box.

  • Page 27: Installation Instructions

    Storage Bin (Optional) Adjustable Legs Adjustable Legs Fig. 1 Fig. 1 Note: Note: This icemaker needs a Storage Bin. Hoshizaki recommends the following Ice Storage This icemaker needs a Storage Bin. Hoshizaki recommends the following Ice Storage Bins: Bins: P-200SD P-200SD ---------...
  • Page 28 1) After removing the packaging, make sure that the icemaker and the Storage Bin are in 1) After removing the packaging, make sure that the icemaker and the Storage Bin are in good condition. If in doubt, please do not use the equipment. See the instruction sheet good condition.

  • Page 29: Location

    2. LOCATION 2. LOCATION WARNING WARNING 1. This icemaker is not intended for outdoor use. Normal operating ambient 1. This icemaker is not intended for outdoor use. Normal operating ambient temperature should be within 1°C to 40°C. Normal operating water temperature should be within 1°C to 40°C.

  • Page 30: Installation

    3. INSTALLATION 3. INSTALLATION * Incorrect installation can cause harm to people, * Incorrect installation can cause harm to people, animals or things, for which the manufacturer animals or things, for which the manufacturer cannot be held responsible. cannot be held responsible. Bottom Bottom [a] IM-240D, IM-240X...
  • Page 31 Bottom Plate Bottom Plate [b] IM-240A [b] IM-240A 1) Fully screw in the four legs provided (bin 1) Fully screw in the four legs provided (bin accessory) into the Storage Bin underside. accessory) into the Storage Bin underside. See Fig. 6. See Fig.
  • Page 32 4. STACKING ICEMAKERS - IM-240D, IM-240X ONLY 4. STACKING ICEMAKERS - IM-240D, IM-240X ONLY WARNING WARNING Check the icemaker models. A D-type icemaker and an X-type icemaker will Check the icemaker models. A D-type icemaker and an X-type icemaker will be required for stacking two icemakers.
  • Page 33 Upper Unit Upper Unit 9) [F-series] 9) [F-series] Locate the extension drain tube kit. Remove Locate the extension drain tube kit. Remove Leads Leads Screw Screw the Locking Nut from the threaded section, and the Locking Nut from the threaded section, and push the threaded pipe through the hole in the push the threaded pipe through the hole in the side of the Bin.

  • Page 34: Electrical Connections

    5. ELECTRICAL CONNECTIONS 5. ELECTRICAL CONNECTIONS WARNING WARNING THIS APPLIANCE MUST BE EARTHED THIS APPLIANCE MUST BE EARTHED This icemaker requires an earth that meets the national and local electrical code This icemaker requires an earth that meets the national and local electrical code requirements.

  • Page 35: Remote Condenser Unit (Remote Air-Cooled Model Only)

    Supply of replacement fuse covers can be obtained from Hoshizaki Parts/Service Centres. Supply of replacement fuse covers can be obtained from Hoshizaki Parts/Service Centres. Fuses should be rated at 13A and approved to BS 1362.

  • Page 36: [B] Location [B] Location

    * The maximum line length is 10 m. For information on longer line installations, call Hoshizaki * The maximum line length is 10 m. For information on longer line installations, call Hoshizaki Care +44 (0) 1223242254.
  • Page 37 Note: Note: The tube ends to be flared should be free The tube ends to be flared should be free from damage, cracks and burrs and also from damage, cracks and burrs and also Tighten Tighten clear of grease or scraps. clear of grease or scraps.
  • Page 38 Cap Nut Cap Nut 6) Remove the Cap Nuts from the Access Valves 6) Remove the Cap Nuts from the Access Valves on both the Condenser and the icemaker. on both the Condenser and the icemaker. Hexagon Hexagon Open the liquid and gas line valves by turning Open the liquid and gas line valves by turning Wrench (H4) Wrench (H4)

  • Page 39: [D] Electrical Connections [D] Electrical Connections

    [d] ELECTRICAL CONNECTIONS [d] ELECTRICAL CONNECTIONS WARNING WARNING THIS APPLIANCE MUST BE EARTHED THIS APPLIANCE MUST BE EARTHED This remote Condenser Unit requires an earth that meets the national and local This remote Condenser Unit requires an earth that meets the national and local electrical code requirements.

  • Page 40: Water Supply And Drain Connections

    [e] STACKING CONDENSER UNITS [e] STACKING CONDENSER UNITS 1) Secure the lower Condenser Unit. 1) Secure the lower Condenser Unit. Top Panel Top Panel 2) Remove the Top Panel of the lower Condenser Unit. 2) Remove the Top Panel of the lower Condenser Unit. Upper Condenser Unit Upper Condenser Unit Keep the four screws for the Top Panel.
  • Page 41 [Air-Cooled and Remote Air-Cooled Models] [Air-Cooled and Remote Air-Cooled Models] 1) Attach the angled end of white flexible inlet hose (accessory) to the G3/4 fitting on the left 1) Attach the angled end of white flexible inlet hose (accessory) to the G3/4 fitting on the left side of the icemaker as indicated, ensuring rubber sealing washer is correctly positioned.
  • Page 42 [Water-Cooled Model] [Water-Cooled Model] * Hoshizaki recommends that the water-cooled Condenser should be connected to a closed * Hoshizaki recommends that the water-cooled Condenser should be connected to a closed circuit recirculating type cooling system utilizing a tower, water chiller or similar (see Fig. 30 circuit recirculating type cooling system utilizing a tower, water chiller or similar (see Fig.
  • Page 43 3) Attach grey flexible outlet hose (accessory) to the R3/4 fitting on the left side of the Storage 3) Attach grey flexible outlet hose (accessory) to the R3/4 fitting on the left side of the Storage Bin as indicated (Fig. 28), confirming fitment of rubber washer before finally hand tightening Bin as indicated (Fig.
  • Page 44 [b] Connections according to regulations other than WRC by utilising accessory [b] Connections according to regulations other than WRC by utilising accessory hoses (Fig. 32) hoses (Fig. 32) 1) Follow the instructions from 1) to 4) in [a] above. 1) Follow the instructions from 1) to 4) in [a] above. 2) For Condenser connections, use supplied accessory hoses and make the same 2) For Condenser connections, use supplied accessory hoses and make the same connections as 1) to 3) in [a] above to the free end of 1/2-3/4 nipples as indicated (Fig.

  • Page 45: Final Check List

    8. FINAL CHECK LIST 8. FINAL CHECK LIST 1) Is the icemaker level? 1) Is the icemaker level? 2) Is the icemaker in a site where ambient temperatures are a minimum of 1°C and maximum 2) Is the icemaker in a site where ambient temperatures are a minimum of 1°C and maximum 40°C all year around? 40°C all year around? 3) Is there at least 15 cm clearance around the icemaker for easy maintenance and service?

  • Page 46: Operating Instructions

    IV. OPERATING INSTRUCTIONS IV. OPERATING INSTRUCTIONS WARNING WARNING 1. This icemaker is designed to produce and store edible ice. To keep the 1. This icemaker is designed to produce and store edible ice. To keep the icemaker hygienic: icemaker hygienic: * Wash your hands before removing ice.
  • Page 47 [Remote Air-cooled Model] [Remote Air-cooled Model] Before starting the unit, energise the Oil Heater around the lower part of the Compressor to Before starting the unit, energise the Oil Heater around the lower part of the Compressor to prevent a starting failure caused by the refrigerant staying inside the Compressor: prevent a starting failure caused by the refrigerant staying inside the Compressor: 1) Move the Washing Switch on the Control Box to the “WASH”...

  • Page 48: Preparing The Icemaker For Long Storage

    2. PREPARING THE ICEMAKER FOR LONG STORAGE 2. PREPARING THE ICEMAKER FOR LONG STORAGE WARNING WARNING Drain the icemaker to prevent damage to the water supply line at subfreezing Drain the icemaker to prevent damage to the water supply line at subfreezing temperatures, using air or carbon dioxide.
  • Page 49 3. BIN CONTROL 3. BIN CONTROL Bin Control Switch is mounted on the upper Bin Control Switch is mounted on the upper side of the Storage Bin. This switch will turn side of the Storage Bin. This switch will turn off the unit automatically when the Storage Bin off the unit automatically when the Storage Bin is full of ice.
  • Page 50 [b] REMOVAL [b] REMOVAL BRACKET COVER BRACKET COVER Push the two Pawls and remove the Bracket Push the two Pawls and remove the Bracket Cover. Cover. SWITCH SWITCH Pull out the Switch, holding the Rubber Leads Pull out the Switch, holding the Rubber Leads Cap.
  • Page 51 1) Open the Storage Bin Door, and remove all ice. 1) Open the Storage Bin Door, and remove all ice. Note: Hoshizaki recommends various types of Storage Bin for the icemaker which vary in Note: Hoshizaki recommends various types of Storage Bin for the icemaker which vary in size and design.
  • Page 52 Note: Some solutions may cause damage to the Bin liner surfaces or corrosion on the Note: Some solutions may cause damage to the Bin liner surfaces or corrosion on the metal parts. metal parts. Always Always rinse the sanitiser unless directed otherwise by Hoshizaki rinse the sanitiser unless directed otherwise by Hoshizaki guidelines. guidelines.
  • Page 53 2. WATER VALVE 2. WATER VALVE 1) Unplug the icemaker or disconnect the power source. 1) Unplug the icemaker or disconnect the power source. 2) Close the water supply tap. 2) Close the water supply tap. 3) Remove the Top Panel and Front Panel. 3) Remove the Top Panel and Front Panel.
  • Page 54 3. WATER-COOLED CONDENSER 3. WATER-COOLED CONDENSER Deposits inside the water circuit of the Water-cooled Condenser decrease cooling Deposits inside the water circuit of the Water-cooled Condenser decrease cooling performance. Clean inside of the Condenser by circulating a cleaning solution. performance. Clean inside of the Condenser by circulating a cleaning solution. 1) Prepare the following: 1) Prepare the following: Cleaning solution [Read and follow any instructions on label or bottle.]...
  • Page 55 3. Use the cleaners and sanitizers recommended by Hoshizaki. Contact your 3. Use the cleaners and sanitizers recommended by Hoshizaki. Contact your local Hoshizaki office for further details. (The instructions below give an local Hoshizaki office for further details.
  • Page 56 14) Use a suitable container to dilute 44 ml of 5.25% sodium hypochlorite solution with 11.4 lit. of water. lit. of water. * Alternatively use the Hoshizaki recommended sanitizer as directed by the relevant * Alternatively use the Hoshizaki recommended sanitizer as directed by the relevant instructions.
  • Page 57 16) As soon as the Water Pan closes, pour the sanitizing solution prepared in 14) carefully 16) As soon as the Water Pan closes, pour the sanitizing solution prepared in 14) carefully into the Water Pan. Do not splash or spill the solution onto the other parts. into the Water Pan.
  • Page 58 VI. TECHNICAL INFORMATION VI. TECHNICAL INFORMATION 1. WATER CIRCUIT AND REFRIGERANT CIRCUIT 1. WATER CIRCUIT AND REFRIGERANT CIRCUIT [a] IM-240DME, IM-240XME, IM-240AME (Air-cooled) [a] IM-240DME, IM-240XME, IM-240AME (Air-cooled) Water Water Valve Valve Expansion Expansion Valve Valve Evaporator Evaporator Thermistor Thermistor...
  • Page 59 [b] IM-240DWME, IM-240XWME (Water-cooled) [b] IM-240DWME, IM-240XWME (Water-cooled) Water Water Valve Valve Expansion Expansion Valve Valve Evaporator Evaporator Thermistor Thermistor Controller Controller Board Board Expansion Expansion Valve Bulb Valve Bulb Water Pan Water Pan Water Pump Water Pump Drier Drier Pressure Pressure Water Regulating Valve...
  • Page 60 [c] IM-240DSME, IM-240XSME (Remote Air-cooled) [c] IM-240DSME, IM-240XSME (Remote Air-cooled) Water Water Expansion Expansion Valve Valve Valve Valve Pressure Pressure Bulb Bulb Switch Switch Drier Drier Thermistor Thermistor Receiver Receiver Water Pan Water Pan Tank Tank Water Water Pump Pump Insulation Insulation Controller...
  • Page 61 2. WIRING DIAGRAM 2. WIRING DIAGRAM [a] IM-240DME, IM-240XME [a] IM-240DME, IM-240XME E1CG4880210 E1CG4880210...
  • Page 62 [b] IM-240DWME, IM-240XWME [b] IM-240DWME, IM-240XWME E1CG4880210 E1CG4880210...
  • Page 63 [c] IM-240DSME, IM-240XSME [c] IM-240DSME, IM-240XSME E1CG4880210 E1CG4880210...
  • Page 64 [d] IM-240AME [d] IM-240AME E1CG4880210 E1CG4880210...
  • Page 65 (Ice Production = Capacity when shipped from factory) (*Values for icemaking water only. Use a cooling tower for cooling water.) Ambient Temp. (°C) Model Water Temp. (°C) IM-240DME* Ice Production (kg/d) IM-240XME* Freeze Cycle Time (min) 19.5 Defrost Cycle Time (min) Water Consumption (lit/h) 48.8...
  • Page 66 (Ice Production = Capacity when shipped from factory) (*Values for icemaking water only. Use a cooling tower for cooling water.) Ambient Temp. (°C) Model Water Temp. (°C) IM-240DWME* Ice Production (kg/d) IM-240XWME* Freeze Cycle Time (min) 18.5 19.5 Defrost Cycle Time (min) Water Consumption (lit/h) 33.5 29.3...
  • Page 67 Suction Pressure and Evaporator Temp. 50/60Hz Ambient Temp. (°C) MODEL Water Temp. (°C) Suction Pressure Peak (bar) IM-240 “M” type (R404A) Evaporator Inlet Temp. (°C) Note: The above data are only for reference in servicing. Actual readings may be slightly different for each product. Suction Pressure = Peak readings in freezing cycle Evaporator Inlet Temp.
  • Page 68 VII. SERVICE DIAGNOSIS 1. NO ICE PRODUCTION PROBLEM CHECK POSSIBLE CAUSE REMEDY [1] The icemaker a) Power Source 1. OFF position. 1. Move to ON position. will not start. 2. Loose connections. 2. Tighten. 3. Bad contacts. 3. Check for continuity and replace.
  • Page 69 PROBLEM CHECK POSSIBLE CAUSE REMEDY [2] (Continued) c) Overload 1. Bad contacts. 1. Check for continuity and Protector replace. 2. Voltage too low. 2. Check for recommended voltage. 3. Refrigerant overcharged 3. Recharge. or undercharged. d) Starter 1. Defective. 1. Replace. e) Start Capacitor 1.
  • Page 70 PROBLEM CHECK POSSIBLE CAUSE REMEDY [6] (Continued) 4. Defective or bound 4. Replace and clean. impeller. 5. Mechanical Seal worn 5. Check and replace. out. e) Controller Board 1. Defective. 1. See “II. 2. CONTROLLER BOARD”. f) Actuator Toggle 1. Defective. 1.
  • Page 71 2. LOW ICE PRODUCTION PROBLEM CHECK POSSIBLE CAUSE REMEDY [1] Freeze cycle a) Water Supply to 1. Low pressure. 1. Check for recommended time is too Condenser pressure. long. (water-cooled) b) Ambient or 1. Too high. 1. Check for recommended Water temperatures.
  • Page 72 3. ABNORMAL ICE PROBLEM CHECK POSSIBLE CAUSE REMEDY [1] Large-hole a) Water Supply 1. Low pressure. 1. Check for recommended cubes. Line pressure. b) Ambient or 1. Too high. 1. Check for recommended Water temperatures. Temperature c) Air Filter, 1. Clogged. 1.
  • Page 73 4. OTHERS PROBLEM CHECK POSSIBLE CAUSE REMEDY [1] Icemaker will a) Bin Control 1. Out of position. 1. Place in position. not stop when Switch 2. Bad contacts. 2. Check for continuity and Bin is filled with replace. ice. b) Controller Board 1. See “II. 2. CONTROLLER BOARD”. [2] Abnormal a) Pump Motor 1.
  • Page 74 VIII. ADJUSTMENT VIII. ADJUSTMENT 1. EXPANSION VALVE 1. EXPANSION VALVE The Expansion Valve is factory-adjusted. Do not adjust it except at replacement or service. The Expansion Valve is factory-adjusted. Do not adjust it except at replacement or service. Adjust the valve setting, if necessary, as follows: Adjust the valve setting, if necessary, as follows: 1) Remove the Cap Nut.
  • Page 75 2. WATER REGULATING VALVE - WATER-COOLED MODEL ONLY 2. WATER REGULATING VALVE - WATER-COOLED MODEL ONLY The Water Regulating Valve is factory-adjusted. Do not adjust it except at replacement or The Water Regulating Valve is factory-adjusted. Do not adjust it except at replacement or service.
  • Page 76 IX. REMOVAL AND REPLACEMENT IX. REMOVAL AND REPLACEMENT 1. SERVICE FOR REFRIGERANT LINES 1. SERVICE FOR REFRIGERANT LINES [a] SERVICE INFORMATION [a] SERVICE INFORMATION 1) Allowable Compressor Opening Time and Prevention of Lubricant Mixture [R404A] 1) Allowable Compressor Opening Time and Prevention of Lubricant Mixture [R404A] The compressor must not be opened more than 30 minutes in replacement or service.
  • Page 77 7) Evacuation, Vacuum Pump and Refrigerant Charge [R404A] 7) Evacuation, Vacuum Pump and Refrigerant Charge [R404A] Never allow the oil in the vacuum pump to flow backward. The vacuum level and vacuum Never allow the oil in the vacuum pump to flow backward. The vacuum level and vacuum pump may be the same as those for the current refrigerants.
  • Page 78 Important Note: Important Note: The DSME/XSME Nameplate will only state a base refrigerant charge The DSME/XSME Nameplate will only state a base refrigerant charge for up to 10 m of remote tubing (distance between Condenser and for up to 10 m of remote tubing (distance between Condenser and icemaker).
  • Page 79 18) Plug in the icemaker or connect the power source. 18) Plug in the icemaker or connect the power source. Note: Note: Hoshizaki recommends that Compressor starting electrics are always replaced at the Hoshizaki recommends that Compressor starting electrics are always replaced at the same time as the Compressor.
  • Page 80 3. DRIER 3. DRIER 1) Unplug the icemaker or disconnect the power source. 1) Unplug the icemaker or disconnect the power source. 2) Remove the Top, Front and Right Side Panels. 2) Remove the Top, Front and Right Side Panels. 3) Recover the refrigerant and store it in a proper container, if required by an applicable law 3) Recover the refrigerant and store it in a proper container, if required by an applicable law (See “1.
  • Page 81 4. EXPANSION VALVE 4. EXPANSION VALVE IMPORTANT IMPORTANT Always install a new Drier every time the sealed refrigeration system is opened. Always install a new Drier every time the sealed refrigeration system is opened. Do not replace the Drier until after all other repair or replacement has been Do not replace the Drier until after all other repair or replacement has been made.
  • Page 82 5. EVAPORATOR 5. EVAPORATOR IMPORTANT IMPORTANT Always install a new Drier every time the sealed refrigeration system is opened. Always install a new Drier every time the sealed refrigeration system is opened. Do not replace the Drier until after all other repair or replacement has been Do not replace the Drier until after all other repair or replacement has been made.
  • Page 83 6. HOT GAS VALVE 6. HOT GAS VALVE IMPORTANT IMPORTANT Always install a new Drier every time the sealed refrigeration system is opened. Always install a new Drier every time the sealed refrigeration system is opened. Do not replace the Drier until after all other repair or replacement has been Do not replace the Drier until after all other repair or replacement has been made.
  • Page 84 7. WATER REGULATING VALVE - WATER-COOLED MODEL ONLY 7. WATER REGULATING VALVE - WATER-COOLED MODEL ONLY [a] VALVE BODY [a] VALVE BODY 1) Unplug the icemaker or disconnect the power source. 1) Unplug the icemaker or disconnect the power source. 2) Close the water supply tap.
  • Page 85 6) Cut off the Capillary Tubes of the Valve and High-pressure Switch, using a file and pliers. 6) Cut off the Capillary Tubes of the Valve and High-pressure Switch, using a file and pliers. Be careful not to damage the Capillary Tube end. Be careful not to damage the Capillary Tube end.
  • Page 86 8. WATER PAN ASSEMBLY 8. WATER PAN ASSEMBLY 1) Remove the Top, Front and Left Side Panels. 1) Remove the Top, Front and Left Side Panels. 2) Push the Reset Switch on the Control Box to open the Water Pan. 2) Push the Reset Switch on the Control Box to open the Water Pan.
  • Page 87 INDEX NO. INDEX NO. DESCRIPTION DESCRIPTION Water Tank Water Tank Water Plate Bracket Water Plate Bracket Bracket Bracket Spring Hook Screw Spring Hook Screw Pump Tubing (Suction) Pump Tubing (Suction) Pump Tubing (Discharge) Pump Tubing (Discharge) Pump Motor Bracket Pump Motor Bracket Water Plate Water Plate Overflow Pipe...
  • Page 88 9. PUMP MOTOR 9. PUMP MOTOR 1) Unplug the icemaker or disconnect the power source. 1) Unplug the icemaker or disconnect the power source. 2) Remove the Top Panel and Front Panel. 2) Remove the Top Panel and Front Panel. 3) Disconnect the Pump Motor leads in the Wiring Channel.
  • Page 89 10. WATER VALVE 10. WATER VALVE 1) Close the water supply tap. 1) Close the water supply tap. 2) Unplug the icemaker or disconnect the power source. 2) Unplug the icemaker or disconnect the power source. 3) Remove the Top Panel and Front Panel. 3) Remove the Top Panel and Front Panel.
  • Page 90 11. ACTUATOR MOTOR 11. ACTUATOR MOTOR 1) Remove the Top Panel and Front Panel. 1) Remove the Top Panel and Front Panel. 2) Push the Reset Switch on the Control Box to open the Water Pan. 2) Push the Reset Switch on the Control Box to open the Water Pan. 3) Unplug the icemaker or disconnect the power source.
  • Page 91 12. CAM ARM 12. CAM ARM [a] CAM ARM (A) - ACTUATOR MOTOR SIDE [a] CAM ARM (A) - ACTUATOR MOTOR SIDE Refer to “11. ACTUATOR MOTOR.” Refer to “11. ACTUATOR MOTOR.” [b] CAM ARM (B) - REAR SIDE [b] CAM ARM (B) - REAR SIDE 1) Remove the Top Panel and Front Panel.
  • Page 92 13. ACTUATOR TOGGLE SWITCH 13. ACTUATOR TOGGLE SWITCH 1) Unplug the icemaker or disconnect the power source. 1) Unplug the icemaker or disconnect the power source. 2) Remove the Top Panel and Front Panel. 2) Remove the Top Panel and Front Panel. 3) Remove the Hex Nut holding the Actuator Toggle Switch.
  • Page 93 Fig. 54 Fig. 54 E1CG4880210 E1CG4880210...
  • Page 94 ICEMAKING ASSEMBLY AND CAM MECHANISM ICEMAKING ASSEMBLY AND CAM MECHANISM INDEX NO. INDEX NO. DESCRIPTION DESCRIPTION Water Pan Assembly Water Pan Assembly Evaporator Evaporator Bolt Bolt Collar (Spacer) Collar (Spacer) Bearing Bearing Actuator Motor Actuator Motor Actuator Toggle Switch Actuator Toggle Switch Shaft Shaft Switch Cover...
  • Page 95 14. CONTROLLER BOARD 14. CONTROLLER BOARD IMPORTANT IMPORTANT A single type Controller Board is supplied as a Service Board. Some A single type Controller Board is supplied as a Service Board. Some modifications and adjustment will be required to fit the icemaker models. Do modifications and adjustment will be required to fit the icemaker models.
  • Page 96 Pawl Pawl Nylon Tie Nylon Tie (Do not cut off) (Do not cut off) Control Box Cover Control Box Cover Bushing Bushing Base Base Signal Ground Wire Signal Ground Wire Shield Plate Shield Plate Controller Board Controller Board Fig. 55 Fig.
  • Page 97 15. THERMISTOR FOR CUBE CONTROL 15. THERMISTOR FOR CUBE CONTROL 1) Unplug the icemaker or disconnect the power source. 1) Unplug the icemaker or disconnect the power source. 2) Remove the Top and Front Panels. 2) Remove the Top and Front Panels. 3) Remove the Connector K4 on the Controller Board, referring to “14.
  • Page 98 16. SURGE ABSORBER 16. SURGE ABSORBER 1) Turn off the Control Switch or disconnect the power source. 1) Turn off the Control Switch or disconnect the power source. 2) Remove the Front Cover. 2) Remove the Front Cover. 3) Remove two screws at the front bottom of the Control Box, and remove the Control Box 3) Remove two screws at the front bottom of the Control Box, and remove the Control Box Cover.
  • Page 99 17. FAN MOTOR - DME/XME/AME ONLY 17. FAN MOTOR - DME/XME/AME ONLY 1) Unplug the icemaker or disconnect the power source. 1) Unplug the icemaker or disconnect the power source. 2) Remove the Top, Front and Right Side Panels. 2) Remove the Top, Front and Right Side Panels. 3) Disconnect the Connector of the Fan Motor.
  • Page 100 HOSHIZAKI EUROPE LTD. HOSHIZAKI EUROPE LTD. UNIT A, STAFFORD PARK 18, TELFORD, UNIT A, STAFFORD PARK 18, TELFORD, SHROPSHIRE TF3 3DJ ENGLAND SHROPSHIRE TF3 3DJ ENGLAND PHONE: 01952-291777 PHONE: 01952-291777...

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