Related Manuals for Hoshizaki KML "F" SERIES
Summary of Contents for Hoshizaki KML "F" SERIES
- Page 1 HOSHIZAKI MODULAR CRESCENT CUBER MODELS KML “F” SERIES KML “H” SERIES SERVICE MANUAL 73085 NO.: ISSUED: AUG. 18, 1999 REVISED: JAN. 13, 2004...
- 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
• Please review this manual. It should be read carefully before the icemaker is serviced or maintenance operations 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. I. - Page 4 III. TECHNICAL INFORMATION ... 47 1. WATER CIRCUIT AND REFRIGERANT CIRCUIT ... 47 [a] AIR-COOLED MODELS ... 47 [b] WATER-COOLED MODELS ... 48 [c] REMOTE AIR-COOLED MODELS ... 49 2. WIRING DIAGRAMS ... 50 [a] KML-250MAH (Beginning Serial #L00001E, ending Serial #M10460F); ... KML-250MWH (Beginning Serial #L10001K, ending Serial #M10090D) ...
- Page 5 [h] KML-450MAF ... 72 [i] KML-450MWF ... 73 [j] KML-450MAH ...74 [k] KML-450MWH (Serial #L00001D through M10530B) ... 75 [l] KML-450MWH (Beginning Serial #M20531D) ... 76 [m] KML-600MAF ... 77 [n] KML-600MWF ... 78 [o] KML-600MRF ...79 [p] KML-600MAH ... 80 [q] KML-600MWH (Serial #L00001D through M10115C) ...
-
Page 6: Specifications
I. SPECIFICATIONS KML-250MAH... -
Page 7: Kml-250Mwh (Water-Cooled)
KML-250MWH... -
Page 8: Kml-350Maf (Air-Cooled)
KML-350MAF... -
Page 9: Kml-350Mwf (Water-Cooled)
KML-350MWF... -
Page 10: Kml-350Mah (Air-Cooled)
KML-350MAH... -
Page 11: Kml-350Mwh (Water-Cooled; Serial #L00001J Through M20060C)
KML-350MWH (Beginning serial #L00001J, ending Serial #M20060C) -
Page 12: Kml-350Mwh (Beginning Serial #M30061E)
KML-350MWH (Beginning serial #M30061E) -
Page 13: Kml-450Maf (Air-Cooled)
KML-450MAF... -
Page 14: Kml-450Mwf (Water-Cooled)
KML-450MWF... -
Page 15: Kml-450Mah (Air-Cooled)
KML-450MAH... -
Page 16: Kml-450Mwh (Water-Cooled; Serial #L00001D Through M10530B)
KML-450MWH (Beginning Serial #L00001D, ending Serial #M10530B) -
Page 17: Kml-450Mwh (Beginning Serial #M20531D)
KML-450MWH (Beginning Serial #M20531D) -
Page 18: Kml-600Maf (Air-Cooled)
KML-600MAF... -
Page 19: Kml-600Mwf (Water-Cooled)
KML-600MWF... -
Page 20: Kml-600Mrf (Remote Air-Cooled)
KML-600MRF... -
Page 21: Kml-600Mah (Air-Cooled)
KML-600MAH... -
Page 22: Kml-600Mwh (Water-Cooled; Serial #L00001D Through M10115C)
17. KML-600MWH (Beginning Serial #L00001D, ending Serial #M10115C) -
Page 23: Kml-600Mwh (Water-Cooled; Beginning Serial #M10121E)
18. KML-600MWH (Beginning Serial # M10121E) -
Page 24: Kml-600Mrh (Remote Air-Cooled)
19. KML-600MRH... -
Page 25: Condenser Unit, Urc-7F
20. CONDENSER UNIT URC-7F Unit: mm. (inches) - Page 26 SPECIFICATIONS URC-7F...
-
Page 27: General Information
GENERAL INFORMATION 1. CONSTRUCTION [a] KML-250MAH, KML-350MAF, KML-350MAH, KML-450MAF, KML-450MAH Spray Tubes Water Pump Float Switch Mechanical Bin Control (except models with Thermostat) Control Switch Expansion Valve Bin Control Thermostat (except models with Mechanical Bin Control) Water Supply Inlet Junction Box Control Box Drier Compressor... -
Page 28: [B] Kml-250Mwh, Kml-350Mwf, Kml-350Mwh, Kml-450Mwf, Kml-450Mwh
[b] KML-250MWH, KML-350MWF, KML-350MWH, KML-450MWF, KML-450MWH Spray Tubes Water Pump Float Switch Mechanical Bin Control (except models with Thermostat) Expansion Valve Control Switch Compressor Hot Gas Valve Bin Control Thermostat (except models with Mechanical Bin Control) Water Supply Inlet Water Regulator Junction Box Control Box... -
Page 29: [C] Kml-600Maf, Kml-600Mah
[c] KML-600MAF, KML-600MAH Spray Tubes Expansion Valve Water Pump Float Switch Mechanical Bin Control (except models with Thermostat) Control Switch Bin Control Thermostat (except models with Mechanical Bin Control) Water Supply Inlet Hot Gas Valve Junction Box Condenser Condenser Fan Motor Control Box Drier Compressor... -
Page 30: [D] Kml-600Mwf, Kml-600Mwh
[d] KML-600MWF, KML-600MWH Spray Tubes Expansion Valve Water Pump Float Switch Control Switch Mechanical Bin Control (except models with Thermostat) Bin Control Thermostat (except models with Mechanical Bin Control) Water Supply Inlet Hot Gas Valve Junction Box Water Regulator Control Box Drier Compressor... -
Page 31: [E] Kml-600Mrf, Kml-600Mrh
[e] KML-600MRF, KML-600MRH Spray Tubes Expansion Valve Water Pump Float Switch Control Switch Mechanical Bin Control (except models with Thermostat) Hot Gas Valve Bin Control Thermostat (except models with Mechanical Bin Control) Water Supply Inlet Hot Gas Valve Junction Box Receiver Tank Control Box... -
Page 32: Controller Board
2. CONTROLLER BOARD [a] SOLID-STATE CONTROL 1) A HOSHIZAKI exclusive solid-state control is employed in Modular Crescent Cubers. 2) A Printed Circuit Board (hereafter called “Controller Board”) includes a stable and high quality control system. 3) All models are pretested and factory-adjusted. - Page 33 2) Defrost Timer The defrost cycle starts when the Float Switch opens and completes the freeze cycle. But the Defrost Timer does not start counting until the Thermistor senses 48°F at the Evaporator outlet. The period from the end of the freeze cycle up to the point of the Thermistor's sensing varies depending on the ambient and water temperatures.
- Page 34 The green LED’s 1-4 represent the corresponding relays and energize and sequence 5 seconds from initial start-up as follows: Sequence Step LED’s on Length: 1 Minute Fill Cycle LED4 Harvest Cycle LED1, 4, & 2 Freeze Cycle LED1 Reverse Pump Out LED1, 3, &...
- Page 35 The application switch located between relay X3 & X4 must be set to match the original board application. Place this switch in the ALP position if there is no white wire supplied to the K1 connector. If there is a white wire, place the switch in the C position. If this switch is placed in the wrong position, either the compressor contactor will remain ener- gized with the control switch OFF, or the unit will not start.
-
Page 36: [C] Sequence
[c] SEQUENCE 1st Cycle 1. Unit energized and Control Switch to “ICE” position. Water supply cycle starts. 2. After 1 minute, Defrost cycle starts. 5. After the first 5 minutes in freeze cycle. Ready to complete freeze cycle when Float Switch circuit opens. - Page 37 2nd Cycle and after with pump drain IMPORTANT Freeze cycle time is limited to 60 minutes even if Float Switch does not open. 1. Float Switch opens and signals to complete freeze cycle. Drain timer starts counting. 5. After the first 5 minutes in freeze cycle. Ready to complete freeze cycle when Float Switch circuit opens.
- Page 38 2nd Cycle and after with no pump drain IMPORTANT Freeze cycle time is limited to 60 minutes even if Float Switch does not open. 1. Float Switch opens and signals to complete freeze cycle. 4. After the first 5 minutes in freeze cycle. Ready to complete freeze cycle when Float Switch circuit opens.
-
Page 39: [D] Controls And Adjustments
[d] CONTROLS AND ADJUSTMENTS The Dip Switch is factory-adjusted to the following positions: FOR MODELS WITH THERMOSTAT: DIP SWITCH NO. OFF OFF OFF KML-250 MAH OFF OFF OFF KML-250 MWH OFF OFF OFF 350M_F, 350M_H KML-450M_F, M_H KML-600MAF, MAH OFF OFF OFF KML-600MWF, MWH KML-600MRF, MRH FOR MODELS WITH MECHANICAL BIN CONTROL:... - Page 40 Switch No. 7: Used only on models with mechanical bin control. Dip Switch should be set “ON”. (Models with bin thermostat, Switch No. 7 should be set in the “OFF” position.) Switch No. 8: Used only for checking the Controller Board. Usually set in OFF position. 1) Defrost Control A thermistor (Semiconductor) is used for a defrost control sensor.
- Page 41 2) Defrost Timer No adjustment is required under normal use, as the Defrost Timer is adjusted to the suit- able position. However, if necessary when all the ice formed on the Evaporator does not fall into the bin in the harvest cycle, adjust the Defrost Timer to longer setting by adjusting the Dip Switch (No.
- Page 42 SETTING Dip Switch No. 5 5) Freeze Timer Adjust to proper specification, or the unit may not operate correctly. Two new dip switches numbered 9 and 10 have been added to the improved “E” board to better prevent possible freeze ups. These settings come factory set to the default setting of 60 min.
-
Page 43: [E] Checking Controller Board
MODELS WITH MECHANICAL BIN CONTROL Dip Switch No. 7 must be set to the ON position. If No. 7 is set to the OFF position, the machine will run continuously, causing a freeze-up condition. No adjustment is required. The Bin Control is factory-adjusted. [e] CHECKING THE CONTROLLER BOARD 1) Visually check the sequence with the icemaker operating. -
Page 44: Switches
3) Check the Controller Board by using test program of the Controller Board. The Output Test Switch “S3” provides a relay sequence test. With power OFF, place S3 on and switch power to ICE. The correct lighting sequence should be none, 2, 3, 4, 1, and 4, normal sequence every 5 seconds. -
Page 45: Mechanical Bin Control
4. MECHANICAL BIN CONTROL (THESE INSTRUCTIONS NOT APPLICABLE TO MODELS WITH THERMOSTAT) [a] PROXIMITY SWITCH 1) This machine uses a lever-actuated proximity switch (hereafter called “mechanical bin control”) to control the ice level in the storage bin. [b] EXPLANATION OF OPERATION 1) The startup and shutdown of the ice machine is controlled via the controller board. -
Page 46: [C] Troubleshooting
[c] TROUBLESHOOTING (MECHANICAL BIN CONTROL ONLY) 1) Machine will not start (i) Move dip switch No. 7 to the “OFF” position. If the machine starts up within a few seconds, the bin control is the likely problem. If the machine does not start up, refer to Section “IV. -
Page 47: Technical Information
III. TECHNICAL INFORMATION 1. WATER CIRCUIT AND REFRIGERANT CIRCUIT [a] KML-250MAH KML-350MAF, KML-350MAH KML-450MAF, KML-450MAH KML-600MAF, KML-600MAH... -
Page 48: [B] Water-Cooled Models
[b] KML-250MWH KML-350MWF, KML-350MWH KML-450MWF, KML-450MWH KML-600MWF, KML-600MWH... -
Page 49: [C] Remote Air-Cooled Models
[c] KML-600MRF, KML-600MRH... -
Page 50: Wiring Diagrams
2. WIRING DIAGRAMS [a] KML-250MAH (Beginning Serial #L00001E, ending Serial #M10460F; KML-250MWH (Beginning Serial #L10001K, ending Serial #M10090D) -
Page 51: Kml-250Mwh (Beginning Serial #M20091G)
Note: KML-250MAH Pressure Switch Cut-out 412.5 PSIG Cut-in 327 ± 21.3 PSIG KML-250MWH Pressure Switch Cut-out PSIG Cut-in 284.5 ± 21.3 PSIG... -
Page 52: [C] Kml-350Maf, Kml-350Mwf
Note: KML-350MAF Pressure Switch Cut-out 412.5 PSIG Cut-in 327 ± 21.3 PSIG KML-350MWF Pressure Switch Cut-out PSIG Cut-in 284.5 ± 21.3 PSIG... -
Page 53: Kml-350Mwh (Beginning Serial #L00001J, Ending Serial #M30080F)
Note: KML-350MAH Pressure Switch Cut-out 412.5 PSIG Cut-in 327 ± 21.3 PSIG KML-350MWH Pressure Switch Cut-out PSIG Cut-in 284.5 ± 21.3 PSIG... -
Page 54: Kml-350Mwh (Beginning Serial #M40081G)
Note: KML-350MAH Pressure Switch Cut-out 412.5 PSIG Cut-in 327 ± 21.3 PSIG KML-350MWH Pressure Switch Cut-out PSIG Cut-in 284.5 ± 21.3 PSIG... -
Page 55: [F] Kml-450Maf, Kml-450Mwf
Note: KML-450MAF Pressure Switch Cut-out 412.5 PSIG Cut-in 327 ± 21.3 PSIG KML-450MWF Pressure Switch Cut-out PSIG Cut-in 284.5 ± 21.3 PSIG... -
Page 56: Kml-450Mwh (Beginning Serial #L00001D, Ending Serial #L00200G)
Note: KML-450MAH Pressure Switch Cut-out 412.5 PSIG Cut-in 327 ± 21.3 PSIG KML-450MWH Pressure Switch Cut-out PSIG Cut-in 284.5 ± 21.3 PSIG... -
Page 57: Kml-450Mwh (Beginning Serial #L10201H, Ending Serial #M20710F)
Note: KML-450MAH Pressure Switch Cut-out 412.5 PSIG Cut-in 327 ± 21.3 PSIG KML-450MWH Pressure Switch Cut-out PSIG Cut-in 284.5 ± 21.3 PSIG... -
Page 58: Kml-450Mwh (Beginning Serial #M30711G)
Note: KML-450MAH Pressure Switch Cut-out 412.5 PSIG Cut-in 327 ± 21.3 PSIG KML-450MWH Pressure Switch Cut-out PSIG Cut-in 284.5 ± 21.3 PSIG... -
Page 59: [J] Kml-600Maf, Kml-600Mwf, Kml-600Mrf
Note: KML-600MWF Pressure Switch +21.3 Cut-out PSIG Cut-in 284.5 ± 21.3 PSIG KML-600MAF, MRF Pressure Switch +21.3 Cut-out 412.5 PSIG Cut-in 327 ± 21.3 PSIG... -
Page 60: Kml-600Mrh (Beginning Serial #L00001F, Ending Serial #L00050F)
[k] KML-600MAH (Beginning Serial #L00001F, ending Serial #L00070F); KML-600MWH (Beginning Serial #L00001D, ending Serial #L00080E); KML-600MRH (Beginning Serial #L00001F, ending Serial #L00050F) -
Page 61: Kml-600Mrh (Beginning Serial #L10051H, Ending Serial #M10350E)
[l] KML-600MAH (Beginning Serial #L10071H, ending Serial #M10460G); KML-600MWH (Beginning Serial #L10081K, ending Serial #M10140E); KML-600MRH (Beginning Serial #L10051H, ending Serial #M10350E) -
Page 62: Kml-600Mrh (Beginning Serial #M20331E)
Note: KML-600MWH Pressure Switch Cut-out PSIG Cut-in 284.5 ± 21.3 PSIG KML-600MAH, MRH Pressure Switch Cut-out 412.5 PSIG Cut-in 327 ± 21.3 PSIG... -
Page 63: Timing Chart
3. TIMING CHART When Control Sw. is turned OFF, Pressure Sw. is OFF, Thermistor Temp. exceeds t1, or Bin Control is in full position (during first 5 minutes of freeze cycle for mechanical Control Sw. in Thermo- stat ON Pressure Sw. - Page 64 To Stand-by Cycle (When Control Sw. is turned OFF, Pressure Sw. is OFF, Thermistor Temp. exceeds t1, or Bin Control is in full position) To Freeze Cycle From Freeze Cycle Min. 3 min *1 The Pump Motor waits for 2 seconds before starting a drain cycle. See “II. 2. [d] CONTROLS AND ADJUSTMENTS.”...
-
Page 65: Performance Data
4. PERFORMANCE DATA [a] KML-250MAH... -
Page 66: [B] Kml-250Mwh
[b] KML-250MWH... -
Page 67: [C] Kml-350Maf
[c] KML-350MAF... -
Page 68: [D] Kml-350Mwf
[d] KML-350MWF... -
Page 69: [E] Kml-350Mah
[e] KML-350MAH... -
Page 70: [F] Kml-350Mwh (Serial #L00001J Through M20060C)
[f] KML-350MWH (Serial #L00001J through M20060C) -
Page 71: [G] Kml-350Mwh (Beginning Serial #M30061E)
[g] KML-350MWH (Beginning Serial #M30061E) -
Page 72: [H] Kml-450Maf
[h] KML-450MAF... -
Page 73: [I] Kml-450Mwf
[i] KML-450MWF... -
Page 74: [J] Kml-450Mah
[j] KML-450MAH... -
Page 75: [K] Kml-450Mwh (Serial #L00001D Through M10530B)
[k] KML-450MWH (Serial #L00001D through M10530B) -
Page 76: [L] Kml-450Mwh (Beginning Serial #M20531D)
[l] KML-450MWH (Beginning Serial #M20531D) -
Page 77: [M] Kml-600Maf
[m] KML-600MAF... -
Page 78: [N] Kml-600Mwf
[n] KML-600MWF... -
Page 79: [O] Kml-600Mrf
[o] KML-600MRF... -
Page 80: [P] Kml-600Mah
[p] KML-600MAH... -
Page 81: [Q] Kml-600Mwh (Serial #L00001D Through M10115C)
[q] KML-600MWH (Serial #L00001D through Serial #M10115C) -
Page 82: R ] Kml-600Mwh (Beginning Serial #M10121E)
[r] KML-600MWH (Beginning Serial #M10121E) -
Page 83: [S] Kml-600Mrh
[s] KML-600MRH... -
Page 84: Service Diagnosis
IV. SERVICE DIAGNOSIS 1. NO ICE PRODUCTION PROBLEM [1] The icemaker a) Power Supply will not start b) Fuse (Inside Fused Disconnect, if any) c) Control Switch d) Bin Control Thermostat For mechanical bin control, see “II. 4. [c]” e) High Pressure Control f) Transformer g) Wiring to... - Page 85 PROBLEM l) Controller Board [2] Water a) Float switch continues to be supplied, and the ice- maker will not b) Controller Board start. [3] Compressor a) Control Switch b) High Pressure Controller c) Water Regulator d) Overload Protector e) Starter f) Start Capacitor or Run Capacitor g) Magnetic Contactor...
- Page 86 PROBLEM [4] Water a) Water Solenoid continues to Valve be supplied in b) Controller Board freeze cycle. [5] No water a) Water Supply Line comes from Spray Tubes. Water Pump b) Water Solenoid will not start, or Valve freeze cycle time is too c) Water System short.
-
Page 87: Evaporator Is Frozen Up
2. EVAPORATOR IS FROZEN UP PROBLEM [1] Freeze cycle a) Float Switch time is too long. b) Water Solenoid Valve c) Controller Board [2] All ice formed a) Evaporator on Evaporator b) Water Supply Line does not fall into bin in c) Water Solenoid harvest cycle. -
Page 88: Abnormal Ice
4. ABNORMAL ICE PROBLEM [1] Small Cube a) Ice Cube Guide b) See chart 1 - [5], and check water supply line, Water Solenoid Valve, water system, Pump Motor or Controller Board. c) Drain Valve [2] Cloudy or a) See chart 2 - [1] and - [3], and check Float Switch, Water Solenoid Valve, irregular cube Controller Board, Spray Tubes, water system, refrigerant charge or Expansion Valve. -
Page 89: Removal And Replacement Of Components
REMOVAL AND REPLACEMENT OF COMPONENTS Ensure all components, fasteners and thumbscrews are securely in place after the equipment is serviced. 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 90: Brazing
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. 6) A liquid charge is recommended for charging an R-404A system. Invert the service cylinder. -
Page 91: Removal And Replacement Of Compressor
3. REMOVAL AND REPLACEMENT OF COMPRESSOR 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. Note: When replacing a Compressor with a defective winding, be sure to install the new Start Capacitor and Start Relay supplied with the replacement Compressor. -
Page 92: Removal And Replacement Of Drier
15) Evacuate the system, and charge it with refrigerant. For air-cooled and water-cooled models, see the Nameplate for the required refrigerant charge. For remote air-cooled models, see the Charge Label in the machine compartment. 16) Connect the Terminals, and replace the Terminal Cover in its correct position. 17) Replace the panels in their correct positions. -
Page 93: Removal And Replacement Of Expansion Valve
5. REMOVAL AND REPLACEMENT OF EXPANSION VALVE 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 94: Removal And Replacement Of Hot Gas Valve And .................................................... Line Valve
6. REMOVAL AND REPLACEMENT OF HOT GAS VALVE AND LINE VALVE Always use a copper tube of the same diameter and length when replacing the hot gas lines; otherwise the performance may be reduced. Always install a new Drier every time the sealed refrigeration system is opened. - Page 95 10) Cut the leads of the Solenoid allowing enough lead length to reconnect using closed end connectors. 11) Connect the new Solenoid leads. 12) Attach the Solenoid to the valve body, and secure it with a screw. 13) Replace the panels in their correct positions. 14) Turn on the power supply.
-
Page 96: Removal And Replacement Of Evaporator
7. REMOVAL AND REPLACEMENT OF EVAPORATOR 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. 2) Remove the panels and the Top Insulation over the Evaporator. -
Page 97: Removal And Replacement Of Water-Regulating Valve
8. REMOVAL AND REPLACEMENT OF WATER REGULATING VALVE - WATER-COOLED MODEL ONLY 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) Turn off the power supply. -
Page 98: Adjustment Of Water Regulating Valve - Water-Cooled Model Only
9. 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. Or prepare a thermometer to check for the condenser drain temperature. -
Page 99: Removal And Replacement Of Condensing Pressure
10. REMOVAL AND REPLACEMENT OF CONDENSING PRESSURE REGULATOR (C.P.R.) - REMOTE AIR-COOLED MODEL ONLY 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) Turn off the power supply. -
Page 100: Removal And Replacement Of Thermistor
11. REMOVAL AND REPLACEMENT OF THERMISTOR 1. Fragile, handle very carefully. 2. Always use a recommended sealant (High Thermal Conductive Type), Model KE4560RTV manufactured by SHINETSU SILICONE, Part Code 60Y000-11, or Part Code 4A0683-01 or equivalent. 3. Always use a recommended foam insulation (Non-absorbent Type) or equivalent. -
Page 101: Removal And Replacement Of Fan Motor
10) Secure the insulation using the Plastic Cable Ties. 11) Connect the Thermistor leads through the bushing of the Control Box to the K3 Connector on the Controller Board. Note: Do not cut the leads of the Thermistor while installing it. 12) Replace the Control Box Cover and the panels in their correct positions. -
Page 102: Removal And Replacement Of Water Valve
13. REMOVAL AND REPLACEMENT OF WATER VALVE 1) Turn off the power supply. 2) Close the Water Supply Line Shut-off Valve. 3) Remove the Front Panel. 4) Remove the Valve Outlet Tubing by releasing the Clamp. 5) Remove the Bracket from the unit. 6) Remove the Fitting Nut and Water Valve. -
Page 103: Removal And Replacement Of Pump Motor
14. REMOVAL AND REPLACEMENT OF PUMP MOTOR 1) Turn off the power supply. 2) Remove the Front Panel. 3) Remove the three screws and the Float Switch Assembly. 4) Remove the wiring connectors from the Pump Motor leads. 5) Remove the four screws and the Pump Motor. 5) Install the new Pump, and replace the removed parts in the reverse order of which they were removed. -
Page 104: Cleaning And Maintenance Instructions
VI. MAINTENANCE AND CLEANING INSTRUCTIONS 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 When shutting off the icemaker for an extended time, drain out all water from the water tank and remove the ice from the Storage Bin. - Page 105 10) Allow the line to drain by gravity. 11) Attach compressed air or carbon dioxide supply to the Condenser Water Line Drain Valve. 12) Blow the water-cooled Condenser out, using compressed air or carbon dioxide until water stops coming out. [2] Remove the water from the potable water supply line: 1) Turn off the power supply and remove the Front Panel.
-
Page 106: Cleaning Procedure
Ensure all components, fasteners and thumbscrews are securely in place after any maintenance or cleaning is done to the equipment. 1. HOSHIZAKI recommends cleaning this unit at least once a year. More frequent cleaning, however, may be required in some existing water conditions. - Page 107 in the “DRAIN” position. 6) Replace the Front Panel and turn on the power supply for 2 minutes. 7) Turn off the power supply. 8) Remove the Front Panel and then remove the Insulation Panel by lifting up the panel slightly and pulling it toward you.
-
Page 108: Sanitizing Procedure
27) Remove the Front Panel. 28) Move the Service Switch to the “DRAIN” position. 29) Replace the Front Panel and turn on the power supply for 2 minutes. 30) Turn off the power supply. 31) Remove the Front Panel. 32) Repeat the above steps 18) through 31) three more times to rinse thoroughly. Note: If you do not sanitize the icemaker, go to step 14) in “SANITIZING PROCEDURE.”... -
Page 109: Maintenance
15) Replace the Front Panel in its correct position. 16) Clean the Storage Bin with water. 17) Turn on the power supply and start the automatic icemaking process. 4. MAINTENANCE This icemaker must be maintained individually, referring to the instruction manual and labels provided with the icemaker.