Hoshizaki CM-110EE Service Manual
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Hoshizaki CM-110EE Service Manual

Self-contained ice maker
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See also: Instruction Manual , Installation Manual
SELF-CONTAINED ICE MAKER
CUBELET
FLAKE
HOSHIZAKI
MODEL
CM-110EE
FM-80EE
FM-120EE(-N)
FM-120EE-50(-N)
SERVICE MANUAL
NO.
E2EB-679
ISSUED:
JUN. 3, 2005
REVISED: JAN. 20, 2006

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Summary of Contents for Hoshizaki CM-110EE

  • Page 1 E2EB-679 ISSUED: JUN. 3, 2005 REVISED: JAN. 20, 2006 HOSHIZAKI SELF-CONTAINED ICE MAKER MODEL CM-110EE CUBELET FM-80EE FLAKE FM-120EE(-N) FM-120EE-50(-N) SERVICE MANUAL...

  • Page 2: Table Of Contents

    CONTENTS PAGE I. SPECIFICATIONS ---------------------------------------------------------------------------------------1 1. DIMENSIONS/CONNECTIONS ------------------------------------------------------------------1 [a] CM-110EE, FM-120EE, FM-120EE-N, FM-80EE --------------------------------------1 [b] FM-120EE-50, FM-120EE-50-N ------------------------------------------------------------2 2. SPECIFICATIONS -----------------------------------------------------------------------------------3 [a] CM-110EE ----------------------------------------------------------------------------------------3 [b] FM-120EE ----------------------------------------------------------------------------------------4 [c] FM-120EE-N -------------------------------------------------------------------------------------5 [d] FM-120EE-50 ------------------------------------------------------------------------------------6 [e] FM-120EE-50-N ---------------------------------------------------------------------------------7 [f] FM-80EE ------------------------------------------------------------------------------------------8 II. GENERAL INFORMATION ----------------------------------------------------------------------------9 1.
  • Page 3 [b] FM-120EE, FM-120EE-50 ------------------------------------------------------------------ 36 [c] FM-120EE-N, FM-120EE-50-N ------------------------------------------------------------ 37 [d] FM-80EE ---------------------------------------------------------------------------------------- 38 VII. SERVICE DIAGNOSIS ---------------------------------------------------------------------------- 39 1. NO ICE PRODUCTION --------------------------------------------------------------------------- 39 2. LOW ICE PRODUCTION ------------------------------------------------------------------------ 41 3. OTHERS --------------------------------------------------------------------------------------------- 41 VIII. REMOVAL AND REPLACEMENT OF COMPONENTS ---------------------------------- 43 1.

  • Page 4: Specifications

    I. SPECIFICATIONS 1. DIMENSIONS/CONNECTIONS [a] CM-110EE, FM-120EE, FM-120EE-N, FM-80EE...

  • Page 5: [B] Fm-120Ee-50, Fm-120Ee-50

    [b] FM-120EE-50, FM-120EE-50-N...

  • Page 6: Specifications

    2. SPECIFICATIONS [a] CM-110EE AC SUPPLY VOLTAGE 1 phase 220-240V 50Hz AMPERAGE 3.5A (Ambient temp. 32°C, Water temp. 21°C) STARTING AMPERAGE ELECTRIC CONSUMPTION 525W (Ambient temp. 32°C, Water temp. 21°C) POWER FACTOR POWER SUPPLY CAPACITY Min 1.08kVA (4.5A) ICE PRODUCTION PER 24h Approx.

  • Page 7: [B] Fm-120Ee

    [b] FM-120EE AC SUPPLY VOLTAGE 1 phase 220-240V 50Hz AMPERAGE 3.5A (Ambient temp. 32°C, Water temp. 21°C) STARTING AMPERAGE ELECTRIC CONSUMPTION 520W (Ambient temp. 32°C, Water temp. 21°C) POWER FACTOR POWER SUPPLY CAPACITY Min 1.08kVA (4.5A) ICE PRODUCTION PER 24h Approx.

  • Page 8: [C] Fm-120Ee

    [c] FM-120EE-N AC SUPPLY VOLTAGE 1 phase 220-240V 50Hz AMPERAGE 3.5A (Ambient temp. 32°C, Water temp. 21°C) STARTING AMPERAGE ELECTRIC CONSUMPTION 525W (Ambient temp. 32°C, Water temp. 21°C) POWER FACTOR POWER SUPPLY CAPACITY Min 1.08kVA (4.5A) ICE PRODUCTION PER 24h Approx.

  • Page 9: [D] Fm-120Ee-50

    [d] FM-120EE-50 AC SUPPLY VOLTAGE 1 phase 220-240V 50Hz AMPERAGE 3.5A (Ambient temp. 32°C, Water temp. 21°C) STARTING AMPERAGE ELECTRIC CONSUMPTION 520W (Ambient temp. 32°C, Water temp. 21°C) POWER FACTOR POWER SUPPLY CAPACITY Min 1.08kVA (4.5A) ICE PRODUCTION PER 24h Approx.

  • Page 10: [E] Fm-120Ee-50

    [e] FM-120EE-50-N AC SUPPLY VOLTAGE 1 phase 220-240V 50Hz AMPERAGE 3.5A (Ambient temp. 32°C, Water temp. 21°C) STARTING AMPERAGE ELECTRIC CONSUMPTION 525W (Ambient temp. 32°C, Water temp. 21°C) POWER FACTOR POWER SUPPLY CAPACITY Min 1.08kVA (4.5A) ICE PRODUCTION PER 24h Approx.

  • Page 11: F] Fm-80Ee

    [f] FM-80EE AC SUPPLY VOLTAGE 1 phase 230V 50Hz AMPERAGE 1.78A (Ambient temp. 32°C, Water temp. 21°C) STARTING AMPERAGE 5.41A ELECTRIC CONSUMPTION 0.3kW (Ambient temp. 32°C, Water temp. 21°C) POWER FACTOR POWER SUPPLY CAPACITY Min 0.52kVA (2.0A) ICE PRODUCTION PER 24h Approx.

  • Page 12: General Information

    II. GENERAL INFORMATION 1. CONSTRUCTION Self-contained cubelet icemaker model CM-110EE and self-contained flaker models FM- 120EE, FM-120EE-N, FM-120EE-50, FM-120EE-50-N and FM-80EE include Water Sup- ply, Evaporator, Condensing and Control Assemblies. Top Panel Door Front Panel (Left) Power Supply Cord Front Cover...
  • Page 13 ICE MAKING UNIT [CM-110EE, FM-120EE-N, FM-120EE-50-N]...
  • Page 14 ICE MAKING UNIT [FM-120EE, FM-120EE-50, FM-80EE]...

  • Page 15: Operation - How It Works

    2. OPERATION - How it works Potable water flows from the external supply tap and enters the water inlet on the machine, passes through an electrically operated Water Valve before flowing into the Reservoir Tank. From the Tank, water flows by gravity into the bottom of the Evaporator to completely surround the Auger and fill the Evaporator with water to the same level as in the Reservoir Tank.

  • Page 16: Timer Board

    3. TIMER BOARD [a] SOLID-STATE CONTROL 1) An exclusive HOSHIZAKI solid-state control is employed in CM-110EE, FM-120EE, FM- 120EE-N, FM-120EE-50, FM-120EE-50-N and FM-80EE self-contained icemakers. 2) A Printed Circuit Board (hereafter called “Timer Board”) includes a stable and high-quality control system.

  • Page 17: [C] Sequence

    Fig. 1 [c] SEQUENCE Fig. 2...
  • Page 18 CONTROL (CTL) PROTECT (PRT) X1 RELAY (GEAR MOTOR) X2 RELAY (COMPRESSOR) PART CODE 437305-02 MODEL H2AA144C02 RATING 24 VAC 50/60Hz 15 sec. 22 sec. 45 sec. Max. 1 sec. Max. 0.25 sec. Max. 1 sec. Fig. 3 Note: “T” (time) functions of the Timer Board are non-adjustable.
  • Page 19 Functions of Terminals 1) Terminals 1, 2 Power supply AC 24V. 2) Terminals 3, 4 Control X (GM) and X (CM) Relays. When closed, energize X (GM) in 1 sec. and X (CM) in 60 sec. When opened, de-energize X (GM) in 150 sec.

  • Page 20: Installation Instructions

    III. INSTALLATION INSTRUCTIONS WARNING The installation must be carried out by qualified personnel, in accordance with current regulations, according to the manufacturer’s instructions. 1. UNPACKING WARNING Children should not be allowed in reach of the packaging elements (plastic bags and expanded polystyrene) as they are potential sources of danger. CAUTION Remove shipping carton, tape(s) and packing.

  • Page 21: Location

    3) Open the Door, take out the package containing accessories, and check the contents: a) Installation Kit Inlet Hose Outlet Hose Adjustable Leg b) Scoop 4) Remove the Front Panel (Left) and Top Panel. See Fig. 5. 5) Remove the protective plastic film from the panels. If the icemaker is exposed to the sun or to heat, remove the film after the icemaker cools.

  • Page 22: Installation

    4. Allow 15 cm clearance at rear, sides and top for proper air circulation and ease of maintenance and/or service should they be required. 5. This appliance is not suitable for installation in an area where a water jet could be used and where dripping is not allowed. 6.

  • Page 23: Water Supply And Drain Connections

    The correct replacement for the detachable fuse cover is identifiable from the manufacturer’s reference number stamped on the plug. 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 24 * The icemaker drain is gravity flow, so ensure drain pipe has an adequate pitch or fall. * Water should drain into an open trap. 1) Attach angled end of white flexible inlet hose (accessory) to the G3/4 fitting at the top rear of the icemaker as indicated, ensuring rubber sealing washer is correctly positioned.

  • Page 25: Operating Instructions

    IV. OPERATING INSTRUCTIONS WARNING 1. This icemaker is designed to produce and store edible ice. To keep the icemaker hygienic: * Wash your hands before removing ice. Use the Plastic Scoop provided (accessory). * The Storage Bin is for ice use only. Do not store anything else in the Bin. * Clean the Storage Bin before use (see “V.

  • Page 26: Preparing The Icemaker For Long Storage

    6) The following should occur in sequence: a) Water Reservoir will fill. Control Box b) Gear Motor will start. c) Compressor will start. * 3A (FM-120EE, CM-110EE) 1A (FM-80EE) Fig. 9 IMPORTANT 1. Check the conditions and quality of the ice production.

  • Page 27: Maintenance

    4) 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 all the surfaces of the Bin Liner,...
  • Page 28 1) Either mix 3 litres of water with 11 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 29: Cleaning Of Water System

    Cleaning solution: “Nickel-Safe Ice Machine Cleaner” by The Rectorseal Corporation or similar. Prepare approximately 3 L of solution as directed on the container. Sanitising solution: 30 mL of 5.25% sodium hypochlorite with 7.6 L of water or the Hoshizaki recommended sanitiser as directed on the container.
  • Page 30 4) Remove the Front Panel (Left) and the Top Panel. 5) Unhook the Drain Hose and drain the water system. 6) Refit the Drain Hose in its correct position. 7) Remove the Control Water Valve by releasing the Fitting Nut. Do not lose the Packing. 8) Remove the Cover of the Reservoir.
  • Page 31 <STEP 3> Note: Sanitising should always be completed after cleaning or alternately as an individual procedure if conditions exist to make it necessary. Use 2.8 lit. of the sanitizing solution to sanitize the icemaker. 21) Close the water supply tap. 22) Follow items 4) to 20) to complete sanitisation of the water system.
  • Page 32 26) Immerse these parts in the sanitizing solution for about 15 minutes. 27) Rinse these parts thoroughtly with clean water. IMPORTANT If the solution is left on these parts, they will corrode. 28) Refit the removed parts in reverse order. 29) Close the water supply tap.

  • Page 33: Technical Information

    VI. TECHNICAL INFORMATION 1. WATER CIRCUIT AND REFRIGERANT CIRCUIT...

  • Page 34: Wiring Diagram

    2. WIRING DIAGRAM [a] CM-110EE, FM-120EE(-N), FM-120EE-50(-N)

  • Page 35: [B] Fm-80Ee

    [b] FM-80EE...

  • Page 36: Timing Chart

    3. TIMING CHART [a] PRINCIPLE OF OPERATION When the Operation Switch is moved to the “ON” position, water is supplied through the Control Water Valve. This cycle continues until the Reservoir is full and the Float Switch signals to close the Water Valve. The Gear Motor will then start in 1 second and the Com- pressor in 60 seconds.
  • Page 37 PRESSURE SWITCH MOTOR PROTECTOR POWER ON RESET UPPER Float Switch LOWER Control Water Valve Pressure Switch Gear Motor Fan Motor Compressor 1sec 0.25sec 1sec 60sec 60sec Fig. 14 3) Low Water Control The icemaker will stop when the water level in the Reservoir falls below the lower float level and is not refilled to the upper float level within 90 seconds due to either an interruption in the water supply or low water pressure.

  • Page 38: Performance Data

    4. PERFORMANCE DATA [a] CM-110EE 10/10 21/15 32/21 Ambient Temp/Water Temp (°C) 10/10 21/15 32/21 Ambient Temp/Water Temp (°C) Head Pressure (bar) Suction Pressure (bar) 10/10 21/15 32/21 Ambient Temp/Water Temp (°C)

  • Page 39: [B] Fm-120Ee, Fm-120Ee-50

    [b] FM-120EE, FM-120EE-50 10/10 21/15 32/21 Ambient Temp/Water Temp (°C) 10/10 21/15 32/21 Ambient Temp/Water Temp (°C) Head Pressure (bar) Suction Pressure (bar) 10/10 21/15 32/21 Ambient Temp/Water Temp (°C)

  • Page 40: [C] Fm-120Ee-N, Fm-120Ee-50-N

    [c] FM-120EE-N, FM-120EE-50-N 10/10 21/15 32/21 Ambient Temp/Water Temp (°C) 10/10 21/15 32/21 Ambient Temp/Water Temp (°C) Head Pressure (bar) Suction Pressure (bar) 10/10 21/15 32/21 Ambient Temp/Water Temp (°C)

  • Page 41: [D] Fm-80Ee

    [d] FM-80EE 10/10 21/15 32/21 Ambient Temp/Water Temp (°C) 10/10 21/15 32/21 Ambient Temp/Water Temp (°C) Head Pressure (bar) Suction Pressure (bar) 10/10 21/15 32/21 Ambient Temp/Water Temp (°C)

  • Page 42: Service Diagnosis

    VII. SERVICE DIAGNOSIS 1. NO ICE PRODUCTION PROBLEM CHECK POSSIBLE CAUSE REMEDY [1] The icemaker a) Power Supply 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 43 PROBLEM CHECK POSSIBLE CAUSE REMEDY [3] (Continued) e) Gear Motor 1. Coil winding opened. 1. Replace. Protect Relay 2. Bad contacts. 2. Check for continuity and replace. f) Pressure Switch 1. Dirty Air Filter or 1. Clean. Condenser. 2. Ambient temperature 2.

  • Page 44: Low Ice Production

    2. LOW ICE PRODUCTION PROBLEM CHECK POSSIBLE CAUSE REMEDY [1] Low ice a) Refrigerant Line 1. Gas leaks. 1. See 1 - [5] - a). production. 2. Refrigerant line 2. Replace the clogged clogged. component. 3. Overcharged. 3. Recharge. b) High-side 1.
  • Page 45 PROBLEM CHECK POSSIBLE CAUSE REMEDY [2] Overflow from a) Water Supply 1. Water pressure too 1. Install a Pressure Reservoir high. Reducing Valve. (Water does b) Water Valve 1. Diaphragm does not 1. Clean or replace. not stop.) close. c) Float Switch 1.

  • Page 46: Removal And Replacement Of Components

    VIII. REMOVAL AND REPLACEMENT OF COMPONENTS 1. SERVICE FOR REFRIGERANT LINES [a] SERVICE INFORMATION 1) Allowable Compressor Opening Time and Prevention of Lubricant Mixture [R134a] 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 R134a, except when they uses the same lubricant.

  • Page 47: [B] Refrigerant Recovery

    7) Evacuation, Vacuum Pump and Refrigerant Charge [R134a] 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. However, the rubber hose and gauge manifold to be used for evacuation and refrigerant charge should be exclusively for R134a.

  • Page 48: Brazing

    9) Close the Refrigerant Access Valve, and disconnect the hoses and Service Manifold. 10) Cap the Access Valve and leak test. 2. BRAZING DANGER 1. Refrigerant R134a itself is not flammable, explosive and poisonous. However, when exposed to an open flame, R134a creates Phosgene gas, hazardous in large amounts.
  • Page 49 16) Evacuate the system, and charge it with refrigerant. See the Nameplate for the required refrigerant charge. (See “1. [c] EVACUATION AND RECHARGE”.) 17) Refit the panels in their correct position. 18) Plug in the icemaker. Note: Hoshizaki recommends that Compressor starting electrics are always replaced at the same time as the Compressor.

  • Page 50: Drier

    4. DRIER 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. 2) Remove the Top Panel, the Front Panel (Left) and the Left Side Panel. 3) Recover the refrigerant and store it in a proper container, if required by an applicable law.

  • Page 51: Expansion Valve

    5. EXPANSION VALVE IMPORTANT Sometimes moisture in the refrigerant circuit exceeds the Drier capacity and freezes up at the Expansion Valve. 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.

  • Page 52: Evaporator Assembly

    6. EVAPORATOR ASSEMBLY - See Fig. 16 1) Unplug the icemaker. 2) Close the water supply tap. 3) Remove the Inlet Hose from the water tap, and drain the Hose. 4) Remove the Top Panel, the Front Panel (Left) and the Left Side Panel. 5) Unhook the Drain Hose, and remove the Cap on the hose end to drain the water system.
  • Page 53 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. 13) Remove the Bulb of the Expansion Valve. 14) Disconnect the brazing connections of the Expansion Valve and the Copper Tube - Low Side from the Evaporator, using brazing equipment.
  • Page 54 GEAR MOTOR 22) Remove the Coupling - Spline on the Gear Motor Shaft. 23) Cut the Connectors of the Gear Motor. 24) Remove the three Socket Head Cap Screws securing the Gear Motor. 25) When replacing the Evaporator; (a) Braze the new Evaporator with nitrogen gas flowing at the pressure of 0.2 - 0.3 bar. (b) Replace the Drier.
  • Page 55 Cutter Socket Head Cap Screw Cutter Evaporator Extruding Head Socket Head Cap Screw with Washer Auger O-ring Lower Bearing Ring Coupling - Spline Mechanical Seal Gear Motor Fig. 16...

  • Page 56: Fan Motor

    7. FAN MOTOR 1) Unplug the icemaker. 2) Remove the Top Panel, the Front Panel (Left) and the Left Side Panel. 3) Remove the wire connectors from the Fan Motor leads. 4) Remove the Fan Motor Bracket and the Fan Motor. 5) Install the new Fan Motor onto the Bracket, and re-fix the Fan Blade.

  • Page 57: Control Water Valve

    9. CONTROL WATER VALVE 1) Unplug the icemaker. 2) Close the water supply tap. 3) Remove the Inlet Hose from the water tap, and drain the Hose. 4) Remove the Top Panel and the Front Panel (Left). 5) Disconnect the Terminals from the Control Water Valve. 6) Loosen the Fitting Nut on the Control Water Valve Inlet, and remove the Control Water Valve.
  • Page 58 HOSHIZAKI ELECTRIC CO., LTD. 3-16 MINAMIYAKATA, SAKAE, TOYOAKE, AICHI 470-1194 JAPAN PHONE: 0562-97-2111...

This manual is also suitable for:

Fm-80eeFm-120ee-nFm-120ee-50-nFm-80ee-nFm-120eeFm-120ee-50

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