Hoshizaki IM-21CNE-HC Service Manual

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SELF-CONTAINED CUBER

SERVICE MANUAL

IM-21CNE-HC

IM-30CNE-HC

IM-30CWNE-HC

IM-45CNE-HC

IM-45NE-HC

IM-45WNE-HC

IM-65NE-HC

IM-65WNE-HC

IM-100CNE-HC

IM-100NE-HC

IM-100WNE-HC

IM-130NE-HC

IM-130WNE-HC

IM-240NE-HC

IM-240WNE-HC

M036-945 (102824)

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Summary of Contents for Hoshizaki IM-21CNE-HC

Page 1 SELF-CONTAINED CUBER IM-21CNE-HC IM-30CNE-HC IM-30CWNE-HC IM-45CNE-HC IM-45NE-HC IM-45WNE-HC SERVICE MANUAL IM-65NE-HC IM-65WNE-HC IM-100CNE-HC IM-100NE-HC IM-100WNE-HC IM-130NE-HC IM-130WNE-HC IM-240NE-HC IM-240WNE-HC M036-945 (102824)
Page 2 [n] IM-130WNE-HC ----------------------------------------------------------------------------- 14 [o] IM-240WNE-HC ----------------------------------------------------------------------------- 15 II. GENERAL INFORMATION ----------------------------------------------------------------------- 16 1. CONSTRUCTION -------------------------------------------------------------------------------- 16 [a] IM-21CNE-HC, IM-30CNE-HC ----------------------------------------------------------- 16 [b] IM-45CNE-HC -------------------------------------------------------------------------------- 17 [c] IM-45NE-HC, IM-65NE-HC --------------------------------------------------------------- 18 [d] IM-100CNE-HC ------------------------------------------------------------------------------ 19 [e] IM-100NE-HC, IM-130NE-HC ------------------------------------------------------------ 20...
Page 3 IM-240NE-HC (Air-cooled) --------------------------------------------------------------- 43 [c] IM-30CWNE-HC, IM-45WNE-HC, IM-65WNE-HC, IM-100WNE-HC, IM-130WNE-HC, IM-240WNE-HC (Water-cooled) -------------------------------- 44 2. WIRING DIAGRAM ---------------------------------------------------------------------------- 45 [a] IM-21CNE-HC, IM-30CNE-HC, IM-30CWNE-HC ---------------------------------- 45 [b] IM-45CNE-HC, IM-45NE-HC, IM-45WNE-HC, IM-65NE-HC ------------------- 46 [c] IM-65WNE-HC ------------------------------------------------------------------------------ 47 [d] IM-100CNE-HC, IM-100NE-HC, IM-100WNE-HC, IM-130NE-HC,...
Page 4 [b] WHOLE VALVE ----------------------------------------------------------------------------- 71 9. WATER PAN ASSEMBLY -------------------------------------------------------------------- 73 10. PUMP MOTOR ---------------------------------------------------------------------------------- 75 11. WATER VALVE ---------------------------------------------------------------------------------- 75 12. ACTUATOR MOTOR -------------------------------------------------------------------------- 76 13. CAM ------------------------------------------------------------------------------------------------ 77 [a] CAM (A) - ACTUATOR MOTOR SIDE ------------------------------------------------ 77 [b] CAM (B) - REAR SIDE -------------------------------------------------------------------- 77 14.
Page 5 I. SPECIFICATIONS 1. DIMENSIONS/SPECIFICATIONS [a] IM-21CNE-HC...
Page 6 [b] IM-30CNE-HC...
Page 7 [c] IM-45CNE-HC...
Page 8 [d] IM-45NE-HC...
Page 9 [e] IM-65NE-HC...
Page 10 [f] IM-100CNE-HC...
Page 11 [g] IM-100NE-HC...
Page 12 [h] IM-130NE-HC...
Page 13 [i] IM-240NE-HC...
Page 14 [j] IM-30CWNE-HC...
Page 15 [k] IM-45WNE-HC...
Page 16 [l] IM-65WNE-HC...
Page 17 [m] IM-100WNE-HC...
Page 18 [n] IM-130WNE-HC...
Page 19 [o] IM-240WNE-HC...
Page 20 II. GENERAL INFORMATION 1. CONSTRUCTION [a] IM-21CNE-HC, IM-30CNE-HC Nameplate Top Panel Water Valve Front Panel (Upper) Handle Bin Door Front Panel (Lower) Air Filter Power Cord Drain Pipe Front Rear Evaporator Actuator Motor Water Plate Water Tank Bin Control Switch...
Page 21 [b] IM-45CNE-HC Nameplate Top Panel Water Valve Handle Bin Door Front Panel (Lower) Louver Air Filter Drain Pipe Power Cord Front Rear Evaporator Actuator Motor Water Plate Bin Control Switch Water Tank Hot Gas Valve Pump Motor Fan Motor Drain Pan Compressor Air-Cooled Condenser Control Box...
Page 22 [c] IM-45NE-HC, IM-65NE-HC Top Panel Water Valve Nameplate Front Panel (Upper) Handle Bin Door Front Panel (Lower) Louver Air Filter Power Cord Drain Pipe Front Rear Evaporator Actuator Motor Water Plate Water Tank Bin Control Switch Pump Motor Drain Pan Hot Gas Valve Fan Motor Compressor...
Page 23 [d] IM-100CNE-HC Top Panel Power Cord Water Valve Nameplate Front Cover Handle Door Louver/Air Filter Rear Front Hot Gas Valve Evaporator Water Plate Water Tank Control Box Bin Control Switch Fan Motor Pump Motor Air-cooled Condenser Drain Pan Compressor Front...
Page 24 [e] IM-100NE-HC, IM-130NE-HC Top Panel Water Valve Nameplate Front Panel (Upper) Handle Door Front Panel Power (Lower) Cord Louver / Air Filter Drain Pipe Gas Sensor Front Rear Evaporator Water Plate Bin Control Switch Actuator Motor Water Tank Pump Motor Drain Pan Hot Gas Valve Compressor...
Page 25 [f] IM-240NE-HC Water Valve Top Panel Front Panel (Upper) Handle Nameplate Bin Door Front Panel (Lower) Louver Air Filter Drain Pipe Power Cord Front Rear Evaporator Bin Control Switch Actuator Motor Water Plate Fan Motor Compressor Water Tank Pump Motor Hot Gas Valve Slope Air-Cooled Condenser...
Page 26 [g] IM-30CWNE-HC Front Panel (Upper) Water Inlet (Water Valve) Handle Door Power Cord Drain Front Panel (Lower) Cooling Water Cooling Water (Inlet) (Outlet) Evaporator Water Valve Water Supply Pipe Water-Cooled Condenser Expansion Valve Water Regulator Hot Gas Valve Pump Motor Drain Pan Slope Control Box...
Page 27 [h] IM-45WNE-HC, IM-65WNE-HC Front Panel (Upper) Water Inlet (Water Valve) Handle Door Power Cord Drain Front Panel (Lower) Cooling Water (Outlet) Cooling Water (Inlet) Evaporator Water Valve Water-Cooled Condenser Water Supply Pipe Expansion Valve Hot Gas Valve Pump Motor Compressor Drain Pan Water Regulator Control Box...
Page 28 [i] IM-100WNE-HC, IM-130WNE-HC Top Panel Water Inlet Front Panel (Water Valve) (Upper) Handle Door Power Cord Front Panel Drain (Lower) Cooling Water (Inlet) Cooling Water (Outlet) Evaporator Water Valve Expansion Water Supply Pipe Valve Water Regulator Pump Motor Water-Cooled Condenser Drain Pan Control Box Compressor...
Page 29 [j] IM-240WNE-HC Top Panel Water Inlet (Water Valve) Front Panel (Upper) Handle Door Front Panel (Lower) Power Cord Drain Cooling Water (Inlet) Cooling Water (Outlet) Water Valve Evaporator Water-Cooled Condenser Expansion Valve Water Supply Pipe Pump Motor Control Box Water Regulator Starting Device Compressor Slope...
Page 30 2. CONTROLLER BOARD Note: Refer to the controller board service manual. IMPORTANT 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. This will reset the controller, and in some cases normal operation will resume.
Page 31 [a] CONTROLLER BOARD LAYOUT Main Board Sub Board Combination...
Page 32 [b] INPUT/OUTPUT LAYOUT Hall IC Input XA Connector (4P) Gas Sensor Signal Input Bin Control Switch / Pressure Switch Input XA Connector (6P) Gas Sensor Power Output (5V DC) PA Connector (4P) CN15 Cube Control Thermistor Input XA Connector (2P) 7-Segment Double- Digit Display Data Input/Output PA Connector (8P)
Page 33 [c] BEFORE CHECKING CONTROLLER BOARD Check the power source voltage and the components as shown in the table below. Component Procedure Normal 1. Thermistor NOTICE 5 -7 kilohms (on evaporator) Thermistor sensor part is fragile, glass sealed. Handle with care. Holder * Disconnect the connector CN13 on Screw...
Page 34 III. OPERATING INSTRUCTIONS WARNING The use of any electrical equipment involves the observance of some fundamental rules. In particular: * Instances of high humidity and moisture increase the risk of electrical short circuits and potential electrical shocks. If in doubt, disconnect the icemaker.
Page 35 * Keep the scoop clean. Clean it by using a neutral cleaner and rinse thoroughly. * Close the door after removing ice to prevent entrance of dirt, dust or insects into the storage bin. 1. START UP 1) Disconnect the power supply. 2) Open the water tap.
Page 36 4) Blow out the water supply line immediately after the water pan has opened. Note: This procedure is necessary to protect the icemaker from freezing up at subfreezing temperature. 5) Unplug the icemaker or disconnect the power source when the water pan has fully opened.
Page 37 3. BIN CONTROL Bin control switch is mounted on the upper side of the storage bin. This switch will turn off the unit automatically when the storage bin is full of ice. Handle the bin control switch carefully, because the switch assembly is fragile. Especially on removing ice, do not touch Running Bin full...
Page 38 [b] REMOVAL BRACKET COVER Push the two pawls and remove the bracket cover. SWITCH Pull out the switch, holding the rubber leads cap. Handle with care. SWITCH ACTUATOR Insert a flat blade screwdriver and wrench it slightly to pull out the switch actuator. Handle with care to prevent damage to the cam surface of the actuator.
Page 39 1) Either mix 1 litre of water with 4 ml of 5.25% sodium hypochlorite solution in a suitable container, or the recommended Hoshizaki sanitiser as directed. 2) Soak the scoop in the solution for more than 3 minutes. Rinse thoroughly, and shake to remove surplus liquid.
Page 40 4) Either mix 5 litres of water with 18 ml of 5.25% sodium hypochlorite solution in a suitable container, or the recommended Hoshizaki sanitiser as directed. 5) Soak a clean sponge or cloth with the solution, and wipe the bin liner, bin door and slope.
Page 41 NOTICE After cleaning, be sure to place the air filter back in position. 2. WATER VALVE 1) Unplug the icemaker or disconnect the power source. 2) Close the water supply tap. 3) Remove the top panel and front panel. 4) Disconnect the inlet hose from the water valve. 5) Remove the mesh filter from the water valve.
Page 42 3. WATER-COOLED CONDENSER Deposits inside the water circuit of the water-cooled condenser decrease cooling performance. Clean inside of the condenser by circulating a cleaning solution. 1) Prepare the following: Cleaning solution [Read and follow any instructions on label or bottle.] Pump Container for solution Hose...
Page 43 Always wear rubber gloves, eye protectors, apron, etc. for safe handling of the cleaner and sanitizer. NOTICE 1. Use the cleaners and sanitizers recommended by Hoshizaki. Contact your local Hoshizaki office for further details. (The instructions below give an example of those recommended cleaners and sanitizers.) 2.
Page 44 16) Use a suitable container to dilute 44 ml of 5.25% sodium hypochlorite solution with 11.4 lit. of water. * Alternatively use the Hoshizaki recommended sanitizer as directed by the relevant instructions.
Page 45 17) Close the water supply tap. Plug in the icemaker or connect the power source. When the 7-segment display on the controller board turns on, press DOWN on the controller board for 3 seconds to start the flush mode. 18) When the flush mode has started, pour the cleaning solution prepared in 16) carefully into the water tank within 60 seconds before the pump motor starts.
Page 46 V. TECHNICAL INFORMATION 1. WATER CIRCUIT AND REFRIGERANT CIRCUIT [a] IM-21CNE-HC, IM-30CNE-HC, IM-45CNE-HC, IM-45NE-HC, IM-65NE-HC (Air- cooled) Accumulator Evaporator Water Valve Water Tank Water Heat Pump Exchanger Hot Gas Valve Strainer Compressor Fan Motor Pressure Switch Drier Condenser...
Page 47 [b] IM-100CNE-HC, IM-100NE-HC, IM-130NE-HC, IM-240NE-HC (Air-cooled) Water Valve Expansion Valve Evaporator Thermistor Controller Board Expansion Valve Bulb Water Pan Water Pump Condenser Hot Gas Fan Motor Valve Strainer Compressor Drier Pressure Switch Water Circuit Refrigerant Circuit...
Page 48 [c] IM-30CWNE-HC, IM-45WNE-HC, IM-65WNE-HC, IM-100WNE-HC, IM-130WNE- HC, IM-240WNE-HC (Water-cooled) Water Valve Expansion Valve Evaporator Thermistor Controller Board Expansion Valve Bulb Water Pan Water Pump Pressure Water Regulating Valve Switch Condenser Drier Hot Gas Valve Strainer Compressor Water Circuit Refrigerant Circuit...
Page 49 2. WIRING DIAGRAM [a] IM-21CNE-HC, IM-30CNE-HC, IM-30CWNE-HC OPTIONAL AIR COOLED ONLY...
Page 50 [b] IM-45CNE-HC, IM-45NE-HC, IM-45WNE-HC, IM-65NE-HC OPTIONAL AIR COOLED ONLY...
Page 51 [c] IM-65WNE-HC WIRING DIAGRAM POWER SUPPLY SEE NAMEPLATE TUBE CONTROL CONTROLLER BOARD FOR POWER VOLTAGE REQ GR/Y THERMISTOR NEUTRAL GROUND LIVE (BK) MOTOR GR/Y (BK) (GY) (GY) FUSE CN13 THERMINAL VARISTOR TRANSFORMER CAP. FUSE (BR) MOTOR 6.3A (BK) PROTECTOR CN10 SURGE BIN CONTROL SWITCH...
Page 52 [d] IM-100CNE-HC, IM-100NE-HC, IM-100WNE-HC, IM-130NE-HC, IM-130WNE-HC...
Page 53 [e] IM-240NE-HC, IM-240WNE-HC...
Page 54 (min) 14.8 (11.2) 18.1 (14.1) 23.4 (16.7) 29.0 (19.0) Defrost Cycle Time (min) 7.1 (6.0) 4.3 (3.9) 3.4 (2.7) 2.2 (1.9) IM-21CNE-HC Water Consumption (lit/h) 4.1 (4.9) 2.3 (2.8) 1.9 (2.6) 1.6 (2.4) Electric Consumption Head Pressure [peak] (bar) 10.2 13.2...
Page 55 Ice Production (kg/d) 40 (46) 36 (42) 30 (34) 25 (28) Freeze Cycle Time (min) 18.6 (14.9) 23.3 (18.0) 29.7 (23.6) 36.4 (27.7) Defrost Cycle Time (min) 5.5 (3.9) 3.5 (2.6) 2.5 (1.9) 2.2 (1.8) IM-45NE-HC Water Consumption (lit/h) 7.8 (9.8) 4.3 (5.6) 3.6 (4.5) 3.0 (3.8)
Page 56 Ice Production (kg/d) Freeze Cycle Time (min) 15.9 19.0 24.7 29.1 Defrost Cycle Time (min) IM-65NE-HC-H Water Consumption (lit/h) 0.13 0.11 0.09 0.08 Electric Consumption Head Pressure [peak] (bar) 11.0 14.0 17.0 Ice Production (kg/d) 55 (56) 45 (48) 35 (38) Freeze Cycle Time (min) 25.2 (21.3)
Page 57 Ice Production (kg/d) 83 (85) 80 (83) 70 (76) 60 (65) Freeze Cycle Time (min) 17.5 (15.5) 20.5 (18.0) 25.3 (21.5) 30.2 (25.0) Defrost Cycle Time (min) 5.0 (4.5) 2.7 (2.5) 2.1 (1.7) 1.8 (1.6) IM-100NE-HC-23 Water Consumption (lit/h) 24.5 (27.6) 11.6 (13.0) 9.4 (11.4) 8.3 (9.9)
Page 58 Ice Production (kg/d) 95 (100) 90 (95) 80 (85) 70 (-) Freeze Cycle Time (min) 25.5 (23.4) 28.7 (25.8) 33.1 (29.7) 38.7 (-) Defrost Cycle Time (min) 4.5 (3.5) 3.0 (2.5) 2.5 (2.0) 2.0 (-) IM-130NE-HC-32 Water Consumption (lit/h) 0.45 (0.50) 0.22 (0.25) 0.19 (0.22) 0.15 (-)
Page 59 Suction Pressure and Evaporator Temp. 50/60Hz Ambient Temp. (˚C) Model Water Temp. (˚C) Suction Pressure [peak] (bar) IM-21CNE-HC Evaporator Inlet Temp. (˚C) Suction Pressure [peak] (bar) IM-30CNE-HC IM-30CNE-HC-25 Evaporator Inlet Temp. (˚C) Suction Pressure [peak] (bar) IM-30CWNE-HC IM-30CWNE-HC-25 Evaporator Inlet Temp.
Page 60 VI. SERVICE DIAGNOSIS 1. ERROR CODE INDICATION * See the controller board service manual for detailed diagnosis and remedies. * The error and caution codes other than E1, E2, EF, AI and A2 are indicated as “EE” in the 7-segment display at the time of occurrence.
Page 61 Alarm Item Description Operation Reset Fan motor runs continuously Sensor sensitivity Sensor has abnormal sensitivity Replace and icemaking operation abnormal and sends false signal. sensor continues. Fan motor runs continuously Sensor circuit Sensor circuit is open and Replace and icemaking operation open cannot detect gas leakage.
Page 62 Note: Full drain flush - After a freeze cycle ends, the unit drains all the remaining water in the tank and refills the tank in the next freeze cycle. Partial drain flush (default setting) - After a freeze cycle ends, the unit leaves the remaining water in the tank and adds some water to fill the tank in the next freeze cycle.
Page 63 VII. ADJUSTMENT 1. EXPANSION VALVE WARNING To prevent possible refrigerant leakage, do not make adjustments while the unit is running. Stop the unit before making adjustments The expansion valve is factory-adjusted. Do not adjust it except at replacement or service. Adjust the valve setting, if necessary, as follows: 1) Remove the cap nut.
Page 64 2. WATER REGULATING VALVE - WATER-COOLED MODEL ONLY The water regulating valve is factory-adjusted. Do not adjust it except at replacement or service. Adjust the valve setting, if necessary, as follows: 1) Attach a pressure gauge to high-side line, or prepare a thermometer to check condenser drain temperature.
Page 65 3. FULL DRAIN FLUSH In some hard water areas, white ice and scaling can be caused. In such case, install a filter or softener, and change the flush mode from “partial drain flush” to “full drain flush” according to the following instructions. Full drain flush –...
Page 66 VIII. REMOVAL AND REPLACEMENT WARNING Only trained service engineer can service the R290 refrigeration unit. 1. SERVICE FOR REFRIGERANT LINES [a] SERVICE INFORMATION 1) Allowable Compressor Opening Time and Prevention of Lubricant Mixture [R290] The compressor must not be opened more than 30 minutes in replacement or service. Do not mix lubricants of different compressors even if both are charged with the same refrigerant, except when they use the same lubricant.
Page 67 6) Replacement Copper Tubing [R290] The copper tubes currently in use are suitable for R290. But do not use them if oily inside. The residual oil in copper tubes should be as little as possible. (Low residual oil type copper tubes are used in the shipped units.) 7) Evacuation, Vacuum Pump and Refrigerant Charge [R290] Never allow the oil in the vacuum pump to flow backward.
Page 68 When removing the refrigerant from the unit, be sure the surrounding area is well- ventilated and free from open flames. Discharge refrigerant in small amounts into the atmosphere. If the surrounding area is not well-ventilated and exposed to open flames, recover the refrigerant in a refrigerant recovery cylinder and discharge it in small amounts into the atmosphere outdoors.
Page 69 2. WELDING REPAIR FOR R290 REFRIGERATION CIRCUIT 1) Make sure the surrounding area of the unit to be repaired is free from ignition sources. 2) Open the window or operate the ventilator to make the surrounding area well- ventilated. 3) Connect the piercing valve. Recover the refrigerant in the specified manner or discharge it into the atmosphere.
Page 70 17) Replace the panels in their correct positions. 18) Plug in the icemaker or connect the power source. Note: Hoshizaki recommends that compressor starting electrics are always replaced at the same time as the compressor. 4. DRIER 1) Unplug the icemaker or disconnect the power source.
Page 71 3) Remove the refrigerant from the unit and then any residual refrigerant still existing in the unit to allow welding process. (See “2. WELDING REPAIR FOR R290 REFRIGERATION CIRCUIT”.) 4) Remove the drier holder, if any, and pull the drier toward you for easy service. 5) Disconnect the outlet and inlet of drier using a pipe cutter near the drier to keep the pipe length as much as possible.
Page 72 3) Remove the refrigerant from the unit and then any residual refrigerant still existing in the unit to allow welding process. (See “2. WELDING REPAIR FOR R290 REFRIGERATION CIRCUIT”.) 4) Disconnect the outlet and inlet of expansion valve using a pipe cutter. Disconnect the inlet side near the expansion valve to keep the pipe length as much as possible.
Page 73 6. EVAPORATOR IMPORTANT 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 made. 1) Unplug the icemaker or disconnect the power source. 2) Remove the top, front and rear panels.
Page 74 7. HOT GAS VALVE IMPORTANT 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 made. 1) Unplug the icemaker or disconnect the power source. 2) Remove the front and rear panels.
Page 75 11) Attach the solenoid coil to the valve body, and secure it with the screw. 12) Connect the leads. 13) Replace the panels in their correct positions. 14) Plug in the icemaker or connect the power source. 8. WATER REGULATING VALVE - WATER-COOLED MODEL ONLY [a] VALVE BODY 1) Unplug the icemaker or disconnect the power source.
Page 76 2) Close the water supply tap. 3) Remove the front and rear panels. 4) Recover the refrigerant and store it in a proper container, if required by an applicable law (See “1. [b] REFRIGERANT RECOVERY”). 5) Cut off the copper tube near the capillary tube solder connection, using a pipe cutter. 6) Cut off the capillary tubes of the valve and high-pressure switch, using a file and pliers.
Page 77 9. WATER PAN ASSEMBLY 1) Remove the top and front panels. 2) Push the reset switch on the control box to open the water pan. 3) Unplug the icemaker or disconnect the power source. 4) Disconnect the pump motor leads in the wiring channel. 5) Remove the two extension springs from the cams.
Page 78 Water Tank Water Plate Tapping Screw Water Pan Bracket Tapping Screw Taping Screw Lubrication Plate Spring Hool Screw Tapping Screw Discharge Tubing Suction Tubing Tank Drain Pipe O-Ring Pump Motor Bracket Pump Motor Hex Head Bolt Flat Washer Flange Nut Nylon Tie Silicone Tube Fig.
Page 79 10. PUMP MOTOR 1) Unplug the icemaker or disconnect the power source. 2) Remove the top panel and front panel. 3) Disconnect the pump motor leads in the wiring channel. 4) Unscrew and remove the pump motor from the bracket. 5) Disconnect the pump suction and discharge tubings.
Page 80 12. ACTUATOR MOTOR 1) Remove the top panel and front panel. 2) Push the reset switch on the control box to open the water pan. 3) Unplug the icemaker or disconnect the power source. 4) Remove the extension spring (actuator motor side) from the cam. 5) Disconnect the actuator motor leads in the wiring channel.
Page 81 13. CAM [a] CAM (A) - ACTUATOR MOTOR SIDE Refer to “12. ACTUATOR MOTOR”. Note: The spring pin is not provided for the auxiliary code G1 or later of IM-100/130/240. [b] CAM (B) - REAR SIDE 1) Remove the top panel and front panel. 2) Push the reset switch on the control box to open the water pan.
Page 82 Actuator Motor Assembly Bin Switch Assembly Water Pan Assembly Ice Making Mechanism Bracket Machine Screw Flange Nut Cam Shaft Bearing Machine Screw Cam Shaft Cam (B) Cotter Pin Water Pan Bearing (Front) Water Pan Bearing (Rear) Flange Nut Spring Tapping Screw Spacer Washer Evaporator Screw...
Page 83 14. CONTROLLER BOARD IMPORTANT Some adjustment will be required for the controller board to fit the icemaker models. Do not repair any parts and electronic devices on the controller board in the field. Replace the whole board with a new service board. 1) Unplug the icemaker or disconnect the power source.
Page 84 IM-21CNE-HC,IM-30CNE-HC IM-21CNE-HC, IM-30CNE-HC, IM-30CWNE-HC 無題 F u s e H o l d e r C o n t r o l B o x Control Box (B) Capacitor F u s e C o n t r o l B o x...
Page 85 IM-45NE-HC E. CONTROL BOX ASSY (E-1) and later IM-45CNE-HC, IM-45NE-HC, IM-45WNE-HC, IM-65NE-HC, IM-65WNE-HC Control Box (A) Control Box (B) Tapping Screw Box Plate Board Support Controller Board Power Relay Tapping Screw Transformer Capacitor Tapping Screw Capacitor Fuse Holder Fuse Machine Screw Control Box Cover Control Label Fuse Label...
Page 86 IM-100CNE-HC, IM-100NE-HC, IM-100WNE-HC, IM-130NE-HC, IM-130WNE-HC Control Box (A) Control Box (B) Tapping Screw Box Plate Board Support Controller Board Transformer Power Relay Tapping Screw Capacitor Capacitor Fuse Holder Fuse Machine Screw Control Box Cover Control Label Fuse Label Wiring Label Grommet Grommet Spring Washer...
Page 87 IM-240NE-HC, IM-240WNE-HC Control Box Base Capacitor Control Box (B) Fuse Holder Box Plate Fuse Truss Head Screw Truss Head Screw Box Separator Board Support Control Box Cover Controller Board Control Label Transformer Fuse Label Power Relay Grommet Truss Head Tapping Screw Grommet Capacitor Cube Control Thermistor...
Page 88 15. THERMISTOR FOR CUBE CONTROL 1) Unplug the icemaker or disconnect the power source. 2) Remove the top and front panels. 3) R e m o v e t h e c o n n e c t o r C N13 o n t h e c o n t r o l l e r b o a r d , r e f e r r i n g t o “14. CONTROLLER BOARD”.
Page 89 16. FAN MOTOR 1) Unplug the icemaker or disconnect the power source. 2) Remove the front and rear panels. 3) Disconnect the connector of the fan motor. 4) Remove the fan motor bracket and the fan motor. 5) Cut the leads of the fan motor allowing enough lead length to reconnect using closed end connectors.
Page 90 IM-100NE-HC, IM-130NE-HC, IM-240NE-HC Bracket Gas Sensor Base IM-100CNE-HC Gas Sensor Bracket Base Fig. 23...
Page 91 IX. OPTIONAL PARTS - GAS SENSOR 1. APPLICABLE MODELS IM-21CNE-HC IM-30CNE-HC IM-45CNE-HC IM-45NE-HC IM-65NE-HC 2. COMPONENTS Screw Bracket (IM-21/30CNE-HC) Tie (6 pcs) Gas Sensor Assy Gas Sensor Harness Gas Sensor (all models) Bracket (IM-45/65_NE-HC) Fig. 24...
Page 92 Display shows “A2” when setting is complete 8) Remove the control box, and take off the control box cover. Fig. 25 IM-21CNE-HC, IM-30CNE-HC 9) Remove the gas sensor from the gas sensor assy and attach it to the bracket for IM-21/30CNE-HC as shown in Fig.
Page 93 B) Connect gas sensor harness connector to controller board (two places). C) Use tie to bind gas sensor harness wiring. A) Remove tie from grommet and insert gas sensor harness. D) Use tie to bind grommet and wiring. Fig. 27 11) Attach the control box cover.
Page 94 13) Remove the rear panel and detach the part A as shown in Fig. 29. Part A Rear Panel Fig. 29 14) Run the gas sensor harness attached in the step 10) through the rear of the unit and connect it to the gas sensor assy connector. Put the bag over the connector and fix it with the tie as shown in Fig.
Page 95 Wire Saddle Gas Sensor Harness Fig. 31 15) Use the tie (adjust its length) to bind the gas sensor assy wiring as shown in Fig. 32. Fig. 32 16) Install the rear panel detached from the part A in the step 13) and the gas sensor assy as shown in Fig.
Page 96 Rear Panel Gas Sensor Assy Fig. 33 IM-45CNE-HC, IM-45NE-HC, IM-65NE-HC 9) Follow the steps from A to D in Figs. 34 and 35 to attach the gas sensor harness included in the optional parts to the controller board. A) Remove tie from grommet and insert gas sensor harness (two places).
Page 97 B) Connect gas sensor harness connector to controller board (two places). C) Use tie to bind gas sensor harness wiring. Fig. 35 10) Attach the control box cover. 11) Fix the control box and grommet as shown in Fig. 36. Fig.
Page 98 14) Run the gas sensor harness attached in the step 9) through the rear of the unit and connect it to the gas sensor assy connector. Put the bag over the connector and fix it with the tie as shown in Fig. 38. Fig.
Page 99 16) Fix the gas sensor harness to the wire saddle as shown in Fig. 40. Wire Saddle Gas Sensor Harness Wire Saddle Gas Sensor Harness Fig. 40 17) Replace the panels in their correct positions. 18) Turn on the icemaker and check that the display shows “ON”. Check for proper operation.

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