Hoshizaki F-80 I MAH (-c), F-80 I MWH (-c) guide

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Hoshizaki F-80 I MAH (-c), F-80 I MWH (-c) service manual

Contents

HoshizakiHoshizaki America, Inc Number Issued Revised“A Superior Degree of Reliability” Modular Flaker Models F-801MAH-C F-801MWH-C Attn HOSHIZAKI Technical Support Department Phone 1-800-233-1940 Technical Service 770 487-2331 FaxComplete and detailed explanation of the problem HOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GA CONTENTS 9. Removal and Replacement of Control Water Valve 5. Removal and Replacement of Expansion Valve7. Removal and Replacement of Evaporator Assembly 8. Removal and Replacement of Fan Motor F-801MAH I. Specification 1. Icemaker F-801MWH F-801MAH-C F-801MWH-C F-801MAH/-C II. General Information 1. Construction Water Supply Inlet Junction Box Water Regulator Compressor Drier F-801MWH/-C GEAR MOTOR 2. Control Box Layout FLUSH CONTROL TIMERRUN CAPACITOR III. Technical Information 1. Water Circuit and Refrigeration Circuit F-801MWH/-C F-801MAH/-C, F-801MWH/-C 2. Wiring Diagrams 3. Sequence of Electrical Circuit b When reservoir has been filled, gear motor starts immediately c Compressor starts about 60 sec. after gear motor starts Page e Low water except water-cooled model Page Page h When flush timer operates for 15 min. every 12 hours Page Page Miswiring. Circuit Protect Relay operates 4. Timing ChartProper wiring. The unit starts 1 sec 150 sec60 sec 1. CIRCUIT PROTECT RELAY 2. WATER LEVEL UPPER 3. FLOAT SWITCH LOWER 5. Performance Data WATER FLOW FOR CONDENSER F-801MAH-C F-801MWH-C 1. Adjustment of Water Regulating Valve water-cooled model only IV. Adjustment of Components 2. Adjustment of Flake Size REMEDY V. Service Diagnosis 1. No Ice ProductionPROBLEM POSSIBLE CAUSE POSSIBLE CAUSE REMEDY PROBLEM2. Low Ice Production POSSIBLE CAUSE 3. Other b Evacuation and Recharge R-404A VI. Removal and Replacement of Components1. Service for Refrigerant Lines a Refrigerant Recovery 2. Brazing DANGER 3. Removal and Replacement of Compressor 4. Removal and Replacement of Drier 5. Removal and Replacement of Expansion Valve Page Auger 7. Removal and Replacement of Evaporator AssemblyCutter Extruding Head Gear Motor Bearing-Lower and Mechanical Seal 30 Turn on the power supply 27 When replacing the evaporatorc Check for leaks using nitrogen gas 140 PSIG and soap bubbles 28 Move the flush switch to the ICE position Socket Head Cap Screw Evaporator Washer Socket Head Cap Screw Barrier Auger Mechanical Seal O-ring Bearing Lower Bolt WasherCoupling - Spline Rubber O-ring Nylon Ring Bolt Washer Cutter Extruding Head Washer 9. Removal and Replacement of Control Water Valve 8. Removal and Replacement of Fan Motor 10. Removal and Replacement of Flush Water Valve 1. Preparing the Icemaker for Long Storage VII. Cleaning and Maintenance a Cleaning Solution 2. Cleaning and Sanitizing Instructions b Cleaning Procedure d Sanitizing Procedure - Initial c Sanitizing Solution e Sanitizing Procedure - Final 22 Turn on the power supply and start the automatic icemaking process 18 Move the flush switch to the “ICE” position and run the icemaker19 Turn off the power supply after 30 minutes 21 Flush out any solution from the storage bin 3. Maintenance 4 Condenser except water-cooled model 3 Air Filter air-cooled model only