Manuals / Hoshizaki / Kitchen Appliance / Ice Maker

Hoshizaki F-1000MWF/-C, F-1000MAF/-C, F-1000MLF/-C, F-1000MRF/-C service manual

Models: F-1000MWF/-C F-1000MRF/-C F-1000MLF/-C F-1000MAF/-C

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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.

2)Recover the refrigerant and store it in an approved container.

3)Disconnect the Capillary Tube using brazing equipment.

4)Disconnect the Flare-connections of the valve.

5)Remove the screws and the valve from the Bracket.

6)Install the new valve, and braze the Capillary Tube.

7)Install the new Drier.

8)Check for leaks using nitrogen gas (140 PSIG) and soap bubbles.

9)Connect the Flare-connections.

10)Evacuate the system, and charge it with refrigerant. See the Nameplate for the required refrigerant charge and type.

11)Open the Water Supply Line Shut-off Valve, and turn on the power supply.

12)Check for water leaks.

13)See “IV. 1. ADJUSTMENT OF WATER REGULATING VALVE.” If necessary, adjust the valve.

14)Replace the panels in their correct position.

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Hoshizaki F-1000MWF/-C, F-1000MAF/-C, F-1000MLF/-C, F-1000MRF/-C service manual

Contents

MODEL MODULAR FLAKERF-1000MAF/-C F-1000MWF/-C F-1000MRF/-C F-1000MLF/-C HOSHIZAKIAttn HOSHIZAKI Technical Support Department Phone 1-800-233-1940 Technical ServiceComplete and detailed explanation of the problem HOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GACONTENTS VI. REMOVAL AND REPLACEMENT OF COMPONENTS IV. ADJUSTMENT OF COMPONENTS1. ADJUSTMENT OF WATER REGULATING VALVE V. SERVICE DIAGNOSISF-1000MAF I. SPECIFICATION 1. ICEMAKERF-1000MWF F-1000MRF F-1000MLF F-1000MAF-C F-1000MWF-C F-1000MRF-C F-1000MLF-C URC-6F 2. CONDENSER UNITAMBIENT CONDITION SPECIFICATIONS MODEL URC-6FEXTERIOR DIMENSIONS W x D x H REFRIGERANT CHARGE WEIGHT CONNECTIONS REFRIGERANT ELECTRICAL CONDENSER HEAD PRESSURE CONTROLFlush Water Valve Control Box Gear Motor II. GENERAL INFORMATION 1. CONSTRUCTIONF-1000MAF/-C Control Water Valve Bin Control Ice Chute Evaporator Expansion ValveFlush Water Valve Control Box Gear Motor F-1000MWF/-CWater Supply Inlet Junction Box Water Regulator Compressor Drier Control Water Valve Bin Control Ice Chute Evaporator Expansion ValveFlush Water Valve Control Box Gear Motor F-1000MRF/-CWater Supply Inlet Junction Box Compressor Receiver Tank Drier Control Water Valve Bin Control Ice Chute Evaporator Expansion ValveControl Water Valve Bin Control Ice Chute Evaporator Expansion Valve F-1000MLF/-CWater Supply Inlet Junction Box Hot Gas Valve Solenoid Valve Heat ExchangerGEAR MOTOR 2. CONTROL BOX LAYOUTF-1000MAF/-C CONTROL TIMER F-1000MWF, F-1000MRF/-CFLUSH FLUSH SWITCH ICE POWER SWITCH FUSE FUSE GEAR MOTOR FLUSH TIMERCONNECTOR GEAR MOTOR PROTECT RELAY CONTROL TIMERF-1000MAF/-C III. TECHNICAL INFORMATION 1. WATER CIRCUIT AND REFRIGERATION CIRCUITF-1000MWF/-C F-1000MRF/-C F-1000MLF/-C F-1000MAF/-C, F-1000MWF/-C, F-1000MRF/-C 2. WIRING DIAGRAMSF-1000MLF/-C 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 Proper wiring. The unit starts 4. TIMING CHARTMiswiring. Circuit Protect Relay operates 60 sec 150 sec1 sec 1. CIRCUIT PROTECT RELAY 2. WATER LEVEL UPPER 3. FLOAT SWITCH LOWER F-1000MAF 5. PERFORMANCE DATAF-1000MWF F-1000MRF F-1000MLF F-1000MAF-C F-1000MWF-C F-1000MRF-C F-1000MLF-C 1. ADJUSTMENT OF WATER REGULATING VALVE - WATER-COOLED MODEL ONLY IV. ADJUSTMENT OF COMPONENTSPOSSIBLE CAUSE V. SERVICE DIAGNOSISPROBLEM 1. NO ICE PRODUCTIONREMEDY PROBLEMPOSSIBLE CAUSE REMEDY PROBLEM2. LOW ICE PRODUCTION POSSIBLE CAUSEREMEDY 3. OTHERSPROBLEM POSSIBLE CAUSEb REFRIGERANT RECOVERY F-1000MLF ONLY VI. REMOVAL AND REPLACEMENT OF COMPONENTS1. SERVICE FOR REFRIGERANT LINES a REFRIGERANT RECOVERY EXCEPT F-1000MLF-C2. BRAZING DANGER 3. REMOVAL AND REPLACEMENT OF COMPRESSOR IMPORTANT 4. REMOVAL AND REPLACEMENT OF DRIER 5. REMOVAL AND REPLACEMENT OF EXPANSION VALVE Page Page AUGER 8. REMOVAL AND REPLACEMENT OF EVAPORATOR ASSEMBLYCUTTER EXTRUDING HEADGEAR MOTOR BEARING-LOWER AND MECHANICAL SEAL30 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” positionSocket 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 Washer10. REMOVAL AND REPLACEMENT OF CONTROL WATER VALVE 9. REMOVAL AND REPLACEMENT OF FAN MOTOR11. REMOVAL AND REPLACEMENT OF FLUSH WATER VALVE 1. PREPARING THE ICEMAKER FOR LONG STORAGE VII. MAINTENANCE AND CLEANING INSTRUCTIONS3 Close the Water Supply Line Shut-off Valve 1 Turn off the power supply and wait for 3 minutes2 Turn on the power supply and wait for 20 seconds Water-cooled Models2. CLEANING INSTRUCTIONS Page 16 Move the Flush Switch to the “ICE” position STEP 6 Move the Flush Switch to the “ICE” position11 Move the Flush Switch to the “ICE” position 14 Turn off the power supply when the Gear Motor starts16 Flush out any solution from the Storage Bin If the solution is left on these parts, they will rust13 Turn on the power supply and run the icemaker 14 Turn off the power supply after 30 minutes3. MAINTENANCE 4 Condenser Except water-cooled model 3 Air Filter Air-cooled model only