Related Manuals for Hoshizaki F-800MAH(-C)
Summary of Contents for Hoshizaki F-800MAH(-C)
- Page 1 Hoshizaki Hoshizaki America, Inc. Modular Flaker Models F-800MAH(-C) F-800MWH(-C) SERVICE MANUAL “A Superior Degree of Reliability” www.hoshizaki.com ® Number: 73173 Issued: 9-2-2009...
- 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.
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Page 3: Table Of Contents
Please review this manual. It should be read carefully before the icemaker is serviced or maintenance operations are performed. Only qualified service technicians should service and maintain the icemaker. This manual should be made available to the technician prior to service or maintenance. CONTENTS PAGE I. - Page 4 V. SERVICE DIAGNOSIS ..................35 1. NO ICE PRODUCTION ..................35 2. LOW ICE PRODUCTION ..................37 3. OTHERS ......................38 VI. REMOVAL AND REPLACEMENT OF COMPONENTS........39 1. SERVICE FOR REFRIGERANT LINES ............... 39 [a] REFRIGERANT RECOVERY ................. 39 [b] EVACUATION AND RECHARGE ..............
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Page 5: Specifications
I. SPECIFICATION 1. ICEMAKER F-800MAH AC SUPPLY VOLTAGE 115-120/60/1 COMPRESSOR 120 V 9.2 RLA 60 LRA GEAR MOTOR 120 V 1.6 FLA 1/6 HP FAN MOTOR 115 V 0.85FLA 1/15 HP OTHER 120 V 0.03A MAXIMUM FUSE SIZE 20 A MAX. -
Page 6: F-800Mwh
F-800MWH AC SUP PLY VOLTA GE 115-120/60/1 COM PRES SOR 120 V 9.2 RLA 60 LRA GEA R M OTOR 120 V 1.6 FLA 1/6 HP OTHE R 120 V 0.03A M AXIM UM FUS E SIZE 20 A M AX. HA CR B RE AK ER (US A ONLY ) 20 A M AX. -
Page 7: F-800Mah-C
F-800MAH-C AC SUPPLY VOLTAGE 115-120/60/1 COMPRESSOR 120 V 9.2 RLA 60 LRA GEAR MOTOR 120 V 1.6 FLA 1/6 HP FAN MOTOR 115 V 0.85FLA 1/15 HP OTHER 120 V 0.03A MAXIMUM FUSE SIZE 20 A MAX. HACR BREAKER (USA ONLY) 20 A MAX. -
Page 8: F-800Mwh-C
F-800MWH-C AC SUPPLY VOLTAGE 115-120/60/1 COMPRESSOR 120 V 9.2 RLA 60 LRA GEAR MOTOR 120 V 1.6 FLA 1/6 HP OTHER 120 V 0.03A MAXIMUM FUSE SIZE 20 A MAX. HACR BREAKER (USA ONLY) 20 A MAX. CIRC. BREAKER (CANADA ONLY) 20 A MINIMUM CIRCUIT AMPACITY 20 A... -
Page 9: General Information
II. GENERAL INFORMATION 1. CONSTRUCTION F-800MAH/-C 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 10: F-800Mwh/-C
F-800MWH/-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 11: Control Box Layout
2. CONTROL BOX LAYOUT F-800MAH/-C WATER CONTROL RELAY FLUSH TIMER TRANSFORMER GEAR MOTOR RELAY FLUSH CONNECTOR CIRCUIT PROTECT FLUSH RELAY GEAR SWITCH MOTOR CAP. PRESSURE MOTOR SWITCH POWER SWITCH GEAR MOTOR PROTECT RELAY STARTER FUSE START FUSE CAPACITOR (GEAR MOTOR) CONTROL CAPACITOR TIMER... -
Page 12: F-800Mwh/-C
F-800MWH/-C... -
Page 13: Technical Information
III. TECHNICAL INFORMATION 1. WATER CIRCUIT AND REFRIGERATION CIRCUIT F-800MAH/-C... -
Page 14: F-800Mwh/-C
F-800MWH/-C... -
Page 15: Wiring Diagram
2. WIRING DIAGRAM F-800MAH/-C, F-800MWH/-C... -
Page 16: 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 17 [b] When Reservoir has been filled, Gear Motor starts immediately.
- Page 18 [c] Compressor starts about 60 sec. after Gear Motor starts.
- Page 19 [d] Bin Control operates, and about 6 sec. later, Compressor and Gear Motor stop simultaneously.
- Page 20 [e] Low Water (Except Water-cooled Model).
- Page 21 [f] Low Water (Water-cooled Model), or Dirty Air Filter (Air-cooled Model), Pressure Switch to “OPEN”, Compressor and Gear Motor operates intermittently.
- Page 22 [g] When Flush Switch is moved to “FLUSH” position, Flush Water Valve opens and flushes Reservoir and Evaporator.
- Page 23 [h] When Flush Timer operates (for 15 min. every 12 hours).
- Page 24 [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 25 [j] When input voltage is too low, (Less than 70%), Gear Motor Fuse (1.5A) is blown causing the Compressor and Gear Motor to turn off immediately.
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Page 26: Timing Chart
4. TIMING CHART... -
Page 29: Performance Data
5. PERFORMANCE DATA F-800MAH APPROXIMATE Ambient Water Temp. (°F) ICE PRODUCTION Temp. (°F) PER 24 HR. (345) (331) (316) (303) (289) (277) (265) (261) (242) lbs./DAY ( kg/day) (231) (221) (206) APPROXIMATE ELECTRIC 1195 1200 1210 CONSUMPTION 1215 1220 1225 1235 1240 1240... -
Page 30: F-800Mwh
F-800MWH APPROXIMATE Ambient Water Temp. (°F) ICE PRODUCTION Temp. (°F) PER 24 HR. (327) (314) (309) (304) (299) (294) (290) (284) (280) lbs./day ( kg/day) (276) (271) (252) APPROXIMATE ELECTRIC 1090 1100 1120 CONSUMPTION 1090 1100 1120 1090 1100 1120 watts 1090 1100... -
Page 31: F-800Mah-C
F-800MAH-C APPROXIMATE Ambient Water Temp. (°F) ICE PRODUCTION Temp. (°F) PER 24 HR. (345) (331) (316) (303) (289) (277) (265) (261) (242) lbs./DAY ( kg/day) (231) (221) (206) APPROXIMATE ELECTRIC 1195 1200 1210 CONSUMPTION 1215 1220 1225 1235 1240 1240 watts 1240 1240... -
Page 32: F-800Mwh-C
F-800MWH-C APPROXIMATE Ambient Water Temp. (°F) ICE PRODUCTION Temp. (°F) PER 24 HR. (304) (295) (290) (284) (279) (274) (268) (268) (258) lbs./day ( kg/day) (253) (249) (229) APPROXIMATE ELECTRIC 1140 1155 1155 CONSUMPTION 1140 1155 1155 1140 1155 1155 watts 1140 1155... -
Page 33: Adjustment Of Components
IV. ADJUSTMENT OF COMPONENTS 1. ADJUSTMENT OF WATER REGULATING VALVE - WATER-COOLED MODEL ONLY The Water Regulating Valve or also called “WATER REGULATOR” is factory-adjusted. No adjustment is required under normal use. Adjust the Water Regulator , if necessary, using the following procedures. -
Page 34: Adjustment Of Flake Size
2. ADJUSTMENT OF FLAKE SIZE To adjust the flake size, change the direction of the Cutter Head on the top of the Auger, according to the following procedures: 1) Remove the Bolt and the Cutter Head. FINE 2) The Cutter Head has two holes, one for fine flake and the other for coarse flake size. -
Page 35: 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 contintinuity and replace. Blown fuse. Replace. Power Switch Off position. - Page 36 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.
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Page 37: 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 38: Others
3. OTHERS 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 39: Removal And Replacement Of Components
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 40: Brazing
6) A liquid charge is recommended for charging an R-404A system. Invert the Service Cylinder. Open the High-side, service manifold Valve. 7) Allow the system to charge with liquid until the pressures balance. 8) If necessary, add any remaining charge to the system through the Low-side. Use a throttling valve or liquid dispensing device to add the remaining liquid charge through the Low-side access port with the unit running. -
Page 41: 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 42: 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 43: 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 44: 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 45: 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. -
Page 46: 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 47 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 48 25) Remove the three Socket Head Cap Screws securing the Gear Motor. 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 49 Rubber O-ring Nylon Ring Bolt Washer Auger Cutter Extruding Head Washer Mechanical Seal Socket Head Cap Screw O-ring Bearing Evaporator - Lower Washer Bolt Socket Head Cap Screw Washer Coupling Barrier - Spline Gear Motor...
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Page 50: 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 51: 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 52: Maintenance And Cleaning Instructions
VII. MAINTENANCE AND CLEANING INSTRUCTIONS 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. The Storage Bin should be cleaned and dried. - Page 53 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. 5) Follow the above steps 3) through 11) in [Air-cooled and Remote Air-cooled Models].
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Page 54: Cleaning Instructions
2. CLEANING INSTRUCTIONS WARNING 1. HOSHIZAKI recommends cleaning this unit at least once a year. More frequent cleaning, however, may be required in some existing water conditions. 2. To prevent injury to individuals and damage to the icemaker, do not use ammonia type cleaners. - Page 55 6) Turn on the power supply and drain out all water from the water line. 7) Turn off the power supply. 8) Remove the Control Water Valve by releasing the Fitting Nut. Do not lose the Packing. 9) Remove the Cover of the Reservoir. 10) Fill the Reservoir with the cleaning solution.
- Page 56 5) Replace the Cover of the Reservoir and the Control Water Valve in their correct position. 6) Move the Flush Switch to the “ICE” position. 7) Replace the Top Panel and the Front Panel in their correct position. 8) Allow the icemaker to set for about 10 minutes before the operation. Then, turn on the power supply, and make ice using the solution until the icemaker stops icemaking.
- Page 57 6) Remove the two Thumbscrews, Plate, and Gasket at the top of the Ice Chute, and then remove the Bin Control Assembly by sliding it slightly toward the Spout and lifting it off. 7) Disassemble the Bin Control Assembly by removing the two Snap Pins, Shaft and Activator.
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Page 58: 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 59 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.