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Hoshizaki F-1001MAH Service Manual

Modular flaker
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Hoshizaki
Hoshizaki America, Inc.
"A Superior Degree
of Reliability"
www.hoshizaki.com
Modular Flaker
Models
F-1001MAH(-C) (-22C)
F-1001MWH(-C)
F-1001MRH(-C)
F-1001MLH(-C)
SERVICE MANUAL
Number: 73115
Issued: 8-18-2008

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Summary of Contents for Hoshizaki F-1001MAH

  • Page 1 Hoshizaki Hoshizaki America, Inc. Modular Flaker Models F-1001MAH(-C) (-22C) F-1001MWH(-C) F-1001MRH(-C) F-1001MLH(-C) SERVICE MANUAL “A Superior Degree of Reliability” www.hoshizaki.com Number: 73115 Issued: 8-18-2008...
  • Page 2 No service or maintenance should be undertaken until the technician has thoroughly read this Service Manual. HOSHIZAKI provides this manual primarily to assist qualified service technicians in the service and maintenance of the icemaker. Should the reader have any questions or concerns which have not been satisfactorily addressed, please call or write to the HOSHIZAKI Technical Support Department for assistance.

  • Page 3: Table Of Contents

    F-1001MWH(-C) ....................... 24 F-1001MRH(-C) ....................... 25 F-1001MLH(-C) ......................26 2. Wiring Diagrams ......................27 F-1001MAH(-C), MAH-22C, MWH(-C), MRH(-C) ............. 27 F-1001MLH(-C) ......................28 3. Sequence of Electrical Circuit ..................29 4. Timing Chart ....................... 39 5. Performance Data ....................... 42 F-1001MAH ......................
  • Page 4 F-1001MRH-C......................49 F-1001MLH-C ......................50 IV. Adjustment of Components .................... 51 1. Adjustment of Water Regulating Valve (water-cooled model only) ......51 V. Service Diagnosis......................52 1. No Ice Production ....................... 52 2. Low Ice Production ..................... 54 3. Other ........................... 55 VI.

  • Page 5: Specification

    I. Specification 1. Icemaker F-1001MAH AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral for 115V) COMPRESSOR 240 V 4.2 RLA 34 LRA GEAR MOTOR 120 V 1/4 HP FAN MOTOR 115 V 0.85FLA 1/15 HP OTHER 120 V 0.03A MAXIMUM FUSE SIZE 15 A MAX.

  • Page 6: F-1001Mwh

    F-1001MWH AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral for 115V) COMPRESSOR 240 V 4.2 RLA 34 LRA GEAR MOTOR 120 V 3 FLA 1/4 HP OTHER 120 V 0.03A MAXIMUM FUSE SIZE 15 A MAX. HACR BREAKER (USA ONLY) 15 A MAX.

  • Page 7: F-1001Mrh

    F-1001MRH AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral for 115V) COMPRESSOR 240 V 4.2 RLA 34 LRA GEAR MOTOR 120 V 1/4 HP FAN MOTOR REMOTE 120 V OTHER 120 V 0.03A MAXIMUM FUSE SIZE 15 A MAX. HACR BREAKER (USA ONLY) 15 A MAX.

  • Page 8: F-1001Mlh

    F-1001MLH AC SUPPLY VOLTAGE 115/60/1 GEAR MOTOR 120 V 1/4 HP OTHER 120 V 0.03A MAXIMUM FUSE SIZE 15 A MAX. HACR BREAKER (USA ONLY) 15 A MAX. CIRC. BREAKER (CANADA ONLY) 15 A MINIMUM CIRCUIT AMPACITY 15 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP.

  • Page 9: F-1001Mah-C

    F-1001MAH-C AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral for 115V) COMPRESSOR 240 V 4.2 RLA 34 LRA GEAR MOTOR 120 V 1/4 HP FAN MOTOR 115 V 0.85FLA 1/15 HP OTHER 120 V 0.03A MAXIMUM FUSE SIZE 15 A MAX.

  • Page 10: F-1001Mah-22C

    F-1001MAH-22C AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral for 115V) COMPRESSOR 240 V 4.5 RLA 34 LRA GEAR MOTOR 120 V 1/4 HP FAN MOTOR 115 V 0.85FLA 1/15 HP OTHER 120 V 0.03A MAXIMUM FUSE SIZE 15 A MAX.

  • Page 11: F-1001Mwh-C

    F-1001MWH-C AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral for 115V) COMPRESSOR 240 V 4.2 RLA 34 LRA GEAR MOTOR 120 V 3 FLA 1/4 HP OTHER 120 V 0.03A MAXIMUM FUSE SIZE 15 A MAX. HACR BREAKER (USA ONLY) 15 A MAX.

  • Page 12: F-1001Mrh-C

    F-1001MRH-C AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral for 115V) COMPRESSOR 240 V 4.2 RLA 34 LRA GEAR MOTOR 120 V 1/4 HP FAN MOTOR REMOTE 120 V OTHER 120 V 0.03A MAXIMUM FUSE SIZE 15 A MAX. HACR BREAKER (USA ONLY) 15 A MAX.

  • Page 13: F-1001Mlh-C

    F-1001MLH-C AC SUPPLY VOLTAGE 115/60/1 GEAR MOTOR 120 V 1/4 HP OTHER 120 V 0.03A MAXIMUM FUSE SIZE 15 A MAX. HACR BREAKER (USA ONLY) 15 A MAX. CIRC. BREAKER (CANADA ONLY) 15 A MINIMUM CIRCUIT AMPACITY 15 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP.

  • Page 14: Condenser Unit

    2. Condenser Unit URC-6F...
  • Page 15 SPECIFICATIONS MODEL: URC-6F EXTERIOR Galvanized Steel DIMENSIONS (W x D x H) 21-15/16" x 15-11/16" x 17-7/8" (557 x 398 x 454 mm) REFRIGERANT CHARGE R404A 1 lb. 14 oz. (850 g) WEIGHT Net 61 lbs. (28 kg) Shipping 68 lbs. (31 kg) CONNECTIONS REFRIGERANT One Shot Couplings (Aeroquip)

  • Page 16: General Information

    II. General Information 1. Construction F-1001MAH(-C), MAH-22C Water Supply Control Water Valve Inlet Bin Control Junction Box Ice Chute Condenser Evaporator Fan Motor Expansion Valve Compressor Flush Water Valve Drier Control Box Gear Motor...

  • Page 17: F-1001Mwh(-C)

    F-1001MWH(-C) Water Supply Control Water Valve Inlet Bin Control Junction Box Ice Chute Water Evaporator Regulator Expansion Valve Compressor Flush Water Valve Drier Control Box Gear Motor...

  • Page 18: F-1001Mrh(-C)

    F-1001MRH(-C) Water Supply Control Water Valve Inlet Bin Control Junction Box Ice Chute Evaporator Compressor Expansion Valve Receiver Tank Flush Water Valve Control Box Drier Gear Motor...

  • Page 19: F-1001Mlh(-C)

    F-1001MLH(-C) Water Supply Control Water Valve Inlet Bin Control Junction Box Ice Chute Hot Gas Evaporator Valve Expansion Valve Solenoid Valve Flush Water Valve Heat Control Box Exchanger Gear Motor...

  • Page 20: Control Box Layout

    2. Control Box Layout F-1001MAH(-C), MAH-22C Note: The above component names are identical with the wiring label, but not with the parts list.

  • Page 21: F-1001Mwh(-C), Mrh(-C)

    F-1001MWH(-C), MRH(-C)

  • Page 22: F-1001Mlh(-C)

    F-1001MLH(-C)

  • Page 23: Technical Information

    III. Technical Information 1. Water Circuit and Refrigeration Circuit F-1001MAH(-C), MAH-22C...

  • Page 24: F-1001Mwh(-C)

    F-1001MWH(-C)

  • Page 25: F-1001Mrh(-C)

    F-1001MRH(-C)

  • Page 26: F-1001Mlh(-C)

    F-1001MLH(-C)

  • Page 27: Wiring Diagrams

    2. Wiring Diagrams F-1001MAH(-C), MAH-22C, MWH(-C), MRH(-C)

  • Page 28: F-1001Mlh(-C)

    F-1001MLH(-C)

  • Page 29: Sequence Of Electrical Circuit

    3. Sequence of Electrical Circuit [a] When power switch is moved to “ON” position and flush switch to “ICE” position, water starts to be supplied to reservoir.
  • Page 30 [b] When reservoir has been filled, gear motor starts immediately.
  • Page 31 [c] Compressor starts about 60 sec. after gear motor starts.
  • Page 32 [d] Bin control operates, and about 6 sec. later, compressor and gear motor stop simultaneously.
  • Page 33 [e] Low Water (except water-cooled model).
  • Page 34 [f] Low Water (water-cooled model), or dirty air filter (air-cooled model), pressure switch to “OPEN”, compressor and gear motor operates intermittently.
  • Page 35 [g] When flush switch is moved to “FLUSH” position, flush water valve opens and flushes reservoir and evaporator.
  • Page 36 [h] When flush timer operates (for 15 min. every 12 hours).
  • Page 37 [i] When 208-230V are supplied to circuit protect relay, it protects the circuit from miswiring. If the power supply is properly connected, the contact of circuit protect relay does not move even when the coil is energized.
  • Page 38 [j] If Gear motor fuse (3A) blows, the compressor and gear motor will turn off immediately.

  • Page 39: Timing Chart

    4. Timing Chart Miswiring. Circuit Protect Relay operates.) Proper wiring. The unit starts. BIN CONTROL 1. CIRCUIT PROTECT RELAY UPPER 2. WATER LEVEL LOWER BOTTOM UPPER 3. FLOAT SWITCH LOWER 4. WATER CONTROL RELAY 5. CONTROL WATER VALVE 1 - 2 6.
  • Page 40 LOW WATER FLUSH TIMER 1. CIRCUIT PROTECT RELAY UPPER 2. WATER LEVEL LOWER BOTTOM UPPER 3. FLOAT SWITCH LOWER 4. WATER CONTROL RELAY 5. CONTROL WATER VALVE 1 - 2 6. FLUSH TIMER 2 - 3 21 min every 12 hr FLUSH 7.
  • Page 41 FLUSH SWITCH PRESSURE SWITCH FLUSH 1. CIRCUIT PROTECT RELAY UPPER 2. WATER LEVEL LOWER BOTTOM UPPER 3. FLOAT SWITCH LOWER 4. WATER CONTROL RELAY 5. CONTROL WATER VALVE 1 - 2 6. FLUSH TIMER 2 - 3 FLUSH 7. FLUSH SWITCH 8.

  • Page 42: Performance Data

    5. Performance Data F-1001MAH APPROXIMATE Ambient Water Temp. (F) ICE PRODUCTION Temp. (F) PER 24 HR. lbs./DAY ( kg/day) APPROXIMATE ELECTRIC 1160 1165 1170 CONSUMPTION 1175 1185 1190 1195 1200 1205 watts 1210 1215 1220 APPROXIMATE WATER 422.00 404.00 CONSUMPTION PER 24 HR.

  • Page 43: F-1001Mwh

    F-1001MWH APPROXIMATE Ambient Water Temp. (F) ICE PRODUCTION Temp. (F) PER 24 HR. lbs./DAY ( kg/day) APPROXIMATE ELECTRIC 1155 1160 1185 CONSUMPTION 1155 1160 1185 1155 1160 1185 watts 1155 1160 1185 APPROXIMATE WATER 1.86 2.39 3.69 CONSUMPTION PER 24 HR. 1.94 2.49 3.88...

  • Page 44: F-1001Mrh

    F-1001MRH APPROXIMATE Ambient Water Temp. (F) ICE PRODUCTION Temp. (F) PER 24 HR. lbs./DAY ( kg/day) APPROXIMATE ELECTRIC 1285 1285 1290 CONSUMPTION 1290 1290 1290 1295 1295 1305 watts 1310 1320 1325 APPROXIMATE WATER CONSUMPTION PER 24 HR. gal. / day (l/day) EVAPORATOR OUTLET TEMP.

  • Page 45: F-1001Mlh

    F-1001MLH APPROXIMATE Ambient Water Temp. (F) ICE PRODUCTION Temp. (F) PER 24 HR. 1150 1035 1005 lbs./DAY ( kg/day) APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR. gal. / day (l/day) EVAPORATOR OUTLET TEMP. °F (°C) HEAD PRESSURE 10.0 10.0 10.0...

  • Page 46: F-1001Mah-C

    F-1001MAH-C APPROXIMATE Ambient Water Temp. (F) ICE PRODUCTION Temp. (F) PER 24 HR. lbs./DAY ( kg/day) APPROXIMATE ELECTRIC 1210 1215 1215 CONSUMPTION 1210 1220 1225 1225 1230 1235 watts 1245 1250 1255 APPROXIMATE WATER CONSUMPTION PER 24 HR. gal. / day (l/day) EVAPORATOR OUTLET TEMP.

  • Page 47: F-1001Mah-22C

    F-1001MAH-22C Intentionally Left Blank We reserve the right to make changes in specifications and design without prior notice.

  • Page 48: F-1001Mwh-C

    F-1001MWH-C APPROXIMATE Ambient Water Temp. (F) ICE PRODUCTION Temp. (F) PER 24 HR. lbs./DAY ( kg/day) APPROXIMATE ELECTRIC 1160 1170 1185 CONSUMPTION 1160 1170 1185 1160 1170 1185 watts 1160 1170 1185 APPROXIMATE WATER 1.81 2.43 3.91 CONSUMPTION PER 24 HR. 1.88 2.52 4.08...

  • Page 49: F-1001Mrh-C

    F-1001MRH-C APPROXIMATE Ambient Water Temp. (F) ICE PRODUCTION Temp. (F) PER 24 HR. lbs./DAY ( kg/day) APPROXIMATE ELECTRIC 1300 1300 1305 CONSUMPTION 1305 1305 1305 1310 1310 1320 watts 1325 1335 1340 APPROXIMATE WATER CONSUMPTION PER 24 HR. gal. / day (l/day) EVAPORATOR OUTLET TEMP.

  • Page 50: F-1001Mlh-C

    F-1001MLH-C APPROXIMATE Ambient Water Temp. (F) ICE PRODUCTION Temp. (F) PER 24 HR. 1020 lbs./DAY ( kg/day) APPROXIMATE ELECTRIC CONSUMPTION watts APPROXIMATE WATER CONSUMPTION PER 24 HR. gal. / day (l/day) EVAPORATOR OUTLET TEMP. °F (°C) HEAD PRESSURE 10.0 10.0 10.0 PSIG (kg/sq.cmG) 11.7...

  • Page 51: Adjustment Of Components

    IV. Adjustment of Components 1. Adjustment of Water Regulating Valve (water-cooled model only) The Water Regulating Valve also called “WATER REGULATOR” is factory-adjusted. No adjustment is required under normal use. Adjust the Water Regulator , if necessary, using the following procedures. 1) Attach a pressure gauge to the high-side line of the system.

  • Page 52: Service Diagnosis

    V. Service Diagnosis 1. No Ice Production PROBLEM POSSIBLE CAUSE REMEDY [1] The icemaker will Power Supply OFF position. Move to ON position. not start. Loose connection. Tighten. Bad contacts. Check for continuity and replace. Blown fuse. Replace. Power Switch Off position.
  • Page 53 PROBLEM POSSIBLE CAUSE REMEDY [4] Water has been a) Gear Motor Fuse 1. Blown Fuse. 1. See "3. [3]." Find out (BUSSMAN GMD the cause and replace supplied, Fan Motor 1.5A) the Fuse. starts, but Gear Motor and b) Thermal Protector 1.

  • Page 54: Low Ice Production

    2. Low Ice Production PROBLEM POSSIBLE CAUSE REMEDY [1] Low ice production a) Refrigerant Line 1. Gas leaks. 1. See "1. [5] a) Refrigerant Line." 2. Refrigerant line 2. Replace the clogged clogged. component. 3. Overcharged. 3. Recharge. b) High-side Pressure 1.

  • Page 55: Other

    3. Other PROBLEM POSSIBLE CAUSE REMEDY [1] Abnormal noise a) Fan Motor 1. Bearing worn out. 1. Replace. 2. Fan blade deformed. 2. Replace fan blade. 3. Fan blade does not 3. Replace. move freely. b) Compressor 1. Bearings worn out, 1.

  • Page 56: Removal And Replacement Of Components

    VI. Removal and Replacement of Components IMPORTANT Ensure all components, fasteners and thumbscrews are securely in place after the equipment is serviced. IMPORTANT 1. The Polyol Ester (POE) oils used in R-404A units can absorb moisture quickly. Therefore it is important to prevent moisture from entering the system when replacing or servicing parts.

  • Page 57: Brazing

    5) Disconnect the vacuum pump, and attach a refrigerant service cylinder to the high-side line. Remember to loosen the connection, and purge the air from the hose. See the nameplate for the required refrigerant charge. Hoshizaki recommends only virgin refrigerant or reclaimed refrigerant which meets ARI Standard No. 700-88 be used.

  • Page 58: Removal And Replacement Of Compressor

    3. Removal and Replacement of Compressor IMPORTANT Always install a new drier every time the sealed refrigeration system is opened. Do not replace the drier until after all other repairs or replacement have been made. 1) Turn off the power supply, and remove the panels. 2) Remove the terminal cover on the compressor, and disconnect the compressor wiring.

  • Page 59: Removal And Replacement Of Drier

    14) Evacuate the system, and charge it with refrigerant. For the air-cooled and water-cooled models, see the nameplate for the required refrigerant charge and type. For the remote air- cooled models, see the label on the control box. 15) Connect the terminals to the compressor, and replace the terminal cover in its correct position.

  • Page 60: Removal And Replacement Of Expansion Valve

    5. Removal and Replacement of 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 repairs or replacement have been made.

  • Page 61: Removal And Replacement Of Water Regulating Valve (Water-Cooled Model Only)

    6. Removal and Replacement of Water Regulating Valve (water-cooled model only) IMPORTANT Always install a new drier every time the sealed refrigeration system is opened. Do not replace the drier until after all other repairs or replacement have been made. 1) Turn off the power supply, remove the panels and close the water supply line shut-off valve.

  • Page 62: Removal And Replacement Of Condensing Pressure Regulator (C.p.r.) (Remote Air-Cooled Model Only)

    7. Removal and Replacement of Condensing Pressure Regulator (C.P.R.) (remote air-cooled model only) IMPORTANT Always install a new drier every time the sealed refrigeration system is opened. Do not replace the drier until after all other repairs or replacement have been made. 1) Turn off the power supply.

  • Page 63: Removal And Replacement Of Evaporator Assembly

    8. Removal and Replacement of Evaporator Assembly 1) Turn off the power supply. 2) Remove the panels. 3) Move the flush switch to the "FLUSH" position. 4) Turn on the power supply and drain out all water from the water line. 5) Turn off the power supply.
  • Page 64 13) Recover the refrigerant and store it in an approved container, if required by an applicable law. IMPORTANT Always install a new drier every time the sealed refrigeration system is opened. Do not replace the drier until after all other repairs or replacement have been made.
  • Page 65 26) Assemble the removed parts in the reverse order of the above procedure. WARNING Be careful not to scratch the surface of the O-ring, or it may cause water leaks. Handle the mechanical seal with care not to scratch nor to contaminate its contact surface.
  • Page 66 Rubber O-ring Nylon Ring Bolt Washer Auger Cutter Extruding Head Washer Mechanical Socket Head Seal Cap Screw O-ring Evaporator Bearing - Lower Bolt Washer Washer Socket Head Cap Screw Coupling - Spline Barrier Gear Motor...

  • Page 67: Removal And Replacement Of Fan Motor

    9. Removal and Replacement of Fan Motor 1) Turn off the power supply and remove the panels. 2) Remove the wire connectors from the fan motor leads. 3) Remove the fan motor bracket and fan motor. 4) Install the new fan motor. 5) Replace the fan motor bracket and the wire connectors.

  • Page 68: Removal And Replacement Of Flush Water Valve

    11. Removal and Replacement of Flush Water Valve 1) Turn off the power supply, remove the panels and close the water supply line shut-off valve. 2) Remove the clamp and disconnect the hose from the flush water valve. Note: Water may still remain inside the evaporator. Be sure to drain the water into the drain pan.

  • Page 69: Cleaning And Maintenance

    VII. Cleaning and Maintenance IMPORTANT Ensure all components, fasteners and thumbscrews are securely in place after any maintenance or cleaning is done to the equipment. 1. Preparing the Icemaker for Long Storage WARNING When shutting off the icemaker for an extended time, drain out all water from the water line and remove the ice from the storage bin.
  • Page 70 [Water-Cooled Models] 1) Turn off the power supply and wait for 3 minutes. 2) Turn on the power supply and wait for 20 seconds. 3) Close the water supply line shut-off valve. 4) Open the drain valve and quickly blow the water supply line from the drain valve to drain water in the condenser.

  • Page 71: Cleaning And Sanitizing Instructions

    [a] Cleaning Solution Dilute 4.8 fl. oz. (142 ml) of recommended cleaner Hoshizaki “Scale Away” or “LIME-A-WAY” (Economics Laboratory, Inc.) with 0.8 gallons (3 l) of warm water. This is a minimum amount. Make more solution if necessary.

  • Page 72: [B] Cleaning Procedure

    [b] Cleaning Procedure The cleaning process will remove lime deposits from the water system. 1) Remove the front panel and top panel, then turn off the power supply. 2) Close the water supply line shut-off valve. 3) Remove all ice from the storage bin. 4) Move the flush switch to the “FLUSH”...

  • Page 73: [C] Sanitizing Solution

    [c] Sanitizing Solution Dilute 2.5 fl. oz. (74 ml or 5 tbs) of IMS-II Sanitizer or a 5.25% sodium hypochlorite solution (chlorine bleach) with 5 gallons (19 l) of warm water. IMPORTANT For safety and maximum effectiveness, use the solution immediately after dilution.

  • Page 74: [E] Sanitizing Procedure - Final

    14) Replace all parts in their correct positions. IMPORTANT When installing the baffles, make sure that the bent surface (the one without the studs) faces the actuator so that the bent surface can guide the ice to the center of the actuator. 15) Move the flush switch to the “ICE”...
  • Page 75 16) When the gear motor starts, remove the front panel and turn off the power supply. 17) Drain out all water from the water line. See 2) and 3). 18) Move the flush switch to the “ICE” position and run the icemaker. 19) Turn off the power supply after 30 minutes.

  • Page 76: Maintenance

    Consult with your local distributor about inspection and maintenance service. To obtain the name and phone number of your local distributor, call Hoshizaki Technical Support at 1-800-233-1940. 1) Stainless Steel Exterior To prevent corrosion, wipe the exterior occasionally with a clean and soft cloth. Use a damp cloth containing a neutral cleaner to wipe off oil or dirt build up.
  • Page 77 3) Air Filter (air-cooled model only) A plastic mesh air filter removes dirt or dust from the air, and keeps the condenser from getting clogged. As the filter gets clogged, the icemaker’s performance will be reduced. Check the filter at least twice a month. When clogged, use warm water and a neutral cleaner to wash the filter.

This manual is also suitable for:

F-1001mah-cF-1001mwh-cF-1001mah-22cF-1001mrhF-1001mwhF-1001mrh-c ... Show all

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