Español dropdown-ico

Manual de instrucciones Hoshizaki KM-901MRH/3

87 de páginas 2.47 mb
Descargar

Pasar a la página of 87

Summary
  • Hoshizaki KM-901MRH/3 - page 1

     Hoshizaki “A Superior Degree of Reliability” www .hoshizaki.com Models KM-901MAH KM-901MWH KM-901MRH/3 Modular Crescent Cuber Hoshizaki America, Inc. S E RV I C E M A N U A L ™ Number: 73156 Issued: 4-18-2008 Revised: 6-23-2009 ...

  • Hoshizaki KM-901MRH/3 - page 2

     IMPORTANT Only qualied service technicians should install, service, and maintain the icemaker. No service or maintenance should be undertaken until the technician has thoroughly read this Service Manual. Failure to service and maintain the equipment in accordance with this manual may adversely affect safety, performance, component life, and ...

  • Hoshizaki KM-901MRH/3 - page 3

    3 IMPORTANT This manual should be read carefully before the icemaker is serviced or maintenance operations are performed. Only qualied service technicians should install, service, and maintain the icemaker. Read the warnings contained in this booklet carefully as they give important information regarding safety. Please retain this booklet for an ...

  • Hoshizaki KM-901MRH/3 - page 4

    4 3. Controls and Adjustments ..................................................................................... 3 a) Default Dip Switch Settings ............................................................................. 3 b) Harvest Timer (S4 dip switch  & ) ................................................................ 3? ...

  • Hoshizaki KM-901MRH/3 - page 5

    5 V. Removal and Replacement of Components ................................................................... 68 A. Service for Refrigerant Lines ...................................................................................... 68 . Refrigerant Recovery ....................................................................................... ...

  • Hoshizaki KM-901MRH/3 - page 6

    6 Important Safety Information Throughout this manual, notices appear to bring your attention to situations which could result in death, serious injury, or damage to the unit. WARNING Indicates a hazardous situation which could result in death or serious injury. CAUTION Indicates a situation which could result in damage to the unit. IMPORTANT Indic ...

  • Hoshizaki KM-901MRH/3 - page 7

    7 I. Specications A. Icemaker 1a. KM-901MAH (air-cooled) Auxiliary Code T-0, U-0 Note: We reserve the right to make changes in specications and design without prior notice. AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with netrual for 115V) AMPERAGE 11.4 A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A AP ...

  • Hoshizaki KM-901MRH/3 - page 8

    8 1b. KM-901MAH (air-cooled) Auxiliary Code U-1 and Later AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with netrual for 115V) AMPERAGE 11.4 A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PER 24 HR. Temp.(°F) 50 70 90 lbs./day ( kg/day ) 70 *874 (396) 832 ( ...

  • Hoshizaki KM-901MRH/3 - page 9

    9 2a. KM-901MWH (water-cooled) Auxiliary Code T-0, U-0 Note: We reserve the right to make changes in specications and design without prior notice. AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with netrual for 115V) AMPERAGE 8.7A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 15 A MAXIMUM FUSE SIZE 15 A APPROXIMATE ICE PRODUCTION Ambien ...

  • Hoshizaki KM-901MRH/3 - page 10

    0 2b. KM-901MWH (water-cooled) Auxiliary Code U-1 and Later AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with netrual for 115V) AMPERAGE 8.7A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 15 A MAXIMUM FUSE SIZE 15 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PER 24 HR. Temp.(°F) 50 70 90 lbs./day ( kg/day ) 70 *912 (414) 88 ...

  • Hoshizaki KM-901MRH/3 - page 11

     3a. KM-901MRH (remote air-cooled) Auxiliary Code T-0, U-0 Note: We reserve the right to make changes in specications and design without prior notice. AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with netrual for 115V) AMPERAGE 11.6A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A APPROXIMATE ICE PRODUC ...

  • Hoshizaki KM-901MRH/3 - page 12

     3b. KM-901MRH (remote air-cooled) Auxiliary Code U-1 and Later AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with netrual for 115V) AMPERAGE 11.6A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PER 24 HR. Temp.(°F) 50 70 90 lbs./day ( kg/day ) 70 *889 ...

  • Hoshizaki KM-901MRH/3 - page 13

    3 4a. KM-901MRH3 (remote air-cooled) Auxiliary Code T-0, U-0 Note: We reserve the right to make changes in specications and design without prior notice. AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 7.0A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PE ...

  • Hoshizaki KM-901MRH/3 - page 14

    4 4b. KM-901MRH (remote air-cooled) Auxiliary Code U-1 and Later AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 7.0A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A APPROXIMATE ICE PRODUCTION Ambient WATER TEMP. (°F) PER 24 HR. Temp.(°F) 50 70 90 lbs./day ( kg/day ) 70 *899 (408) 874 (397) 817 (371) Referenc ...

  • Hoshizaki KM-901MRH/3 - page 15

    5 B. Condenser Unit 1. URC-9F Unit: mm [in.] ...

  • Hoshizaki KM-901MRH/3 - page 16

    6 Specications MODEL: URC-9F Note: We reserve the right to make changes in specications and design without prior notice. AC SUPPLY VOLTAGE 115/60/1 (Connection to Icemaker) FAN MOTOR 115 V Total 1.3FLA 65W EXTERIOR DIMENSIONS (WxDxH) 32-3/16" x 15-11/16" x 21-15/16" (817 x 398 x 558 mm) DIMENSIONS INCLUDING LEGS (WxDxH) 34-5 ...

  • Hoshizaki KM-901MRH/3 - page 17

    7 II. General Information A. Construction 1. KM-901MAH (air-cooled) Thermostatic Bin Control Auxiliary Code T-0, U-0 Water Supply Inlet Condenser Drier Control Box Spray Tubes Control Switch Water Pump Float Switch Compressor Expansion Valves Fan Motor Hot Gas Valve Thermostatic Bin Control Bracket & Bulb Holder Auxiliary Code T-0, U-0 Clean ...

  • Hoshizaki KM-901MRH/3 - page 18

    8 2. KM-901MWH (water-cooled) Water Supply Inlet Condenser Drier Control Box Spray Tubes Control Switch Water Pump Float Switch Compressor Expansion Valves Water Regulating Valve Hot Gas Valve Junction Box Cleaning Valve Thermostatic Bin Control Auxiliary Code T-0, U-0 Thermostatic Bin Control Bracket & Bulb Holder Auxiliary Code T-0, U-0 Me ...

  • Hoshizaki KM-901MRH/3 - page 19

    9 3. KM-901MRH/3 (remote air-cooled) Receiver Tank Water Supply Inlet Junction Boxes Drier Control Box Spray Tubes Control Switch Water Pump Float Switch Compressor Expansion Valves Hot Gas Valve Liquid Line Valve Cleaning Valve Thermostatic Bin Control Auxiliary Code T-0, U-0 Thermostatic Bin Control Bracket & Bulb Holder Auxiliary Code T-0 ...

  • Hoshizaki KM-901MRH/3 - page 20

    0 B. Sequence of Operation 1. Sequence Cycles and Shutdown a) "E" Control Board: Auxiliary Code T-0, U-0 The steps in the sequence are as outlined below. When power is supplied, CB red "POWER OK" LED comes on. There is a 5-second delay before startup. Note that the order of the component LEDs from the outer edge of CB is , ...

  • Hoshizaki KM-901MRH/3 - page 21

     (5) Harvest Cycle Same as the initial harvest cycle. See "II.B..a)() Initial Harvest Cycle." Note: Unit continues to cycle until TBC is satised or power is turned off. The unit always restarts at the -minute ll cycle. (6) Shutdown When ice contacts the thermostatic bulb (TBC switch open), TBC shuts down the unit with ...

  • Hoshizaki KM-901MRH/3 - page 22

     (3) Freeze Cycle LED  is on. Comp and FMR remain energized, PM, FM, and LLV energize. HGV and WV de-energize. For the rst 5 minutes, CB will not accept a signal from F/S. This minimum 5-minute freeze time is short cycle protection for Comp. At the end of 5 minutes, F/S assumes control. As ice builds on the evaporator, the water level i ...

  • Hoshizaki KM-901MRH/3 - page 23

    3 (6) Shutdown When MBC is activated (MBC open), the yellow "BC OPEN" LED comes on. The unit then shuts down as outlined in the table below. Cycle at Mechanical Bin Control Activation Shutdown Fill Cycle 5 seconds after activation. Harvest Cycle At the end of the harvest cycle, or up to 5 seconds into the freeze cycle if activate ...

  • Hoshizaki KM-901MRH/3 - page 24

    4 2. Sequence Flow Chart a) "E" Control Board: Auxiliary Code T-0, U-0 4. Pump-Out Cycle • Factory set for every 0th cycle (S4 dip switch 5 & 6) • Pump motor stops for  sec., then reverses for 0/0 sec. (S4 dip switch 3 & 4) F/S Check Components Energized when the Control Switch is in the "WASH" Positio ...

  • Hoshizaki KM-901MRH/3 - page 25

    5 b) "G" Control Board: Auxiliary Code U-1 and Later • WV time: 6 min. or the length of harvest minus 0 or 50 sec. (S4 dip switch 7), whichever is shorter. DO NOT ADJUST S4 dip switch 7 on this model. • Maximum harvest time: 0 min. F/S check  to 3-min. timer in control (S4 dip switch  & ) Legend: Comp –compressor ...

  • Hoshizaki KM-901MRH/3 - page 26

    6 C. Control Board • A Hoshizaki exclusive solid-state control board is employed in KM-90MAH, KM-90MWH, and KM-90MRH/3 Modular Crescent Cubers. • All models are pretested and factory set. CAUTION . The control board is fragile; handle very carefully. . The control board contains integrated circuits, which are susceptible to fa ...

  • Hoshizaki KM-901MRH/3 - page 27

    7 1. Control Board Layout a) "E" Control Board: Auxiliary Code T-0, U-0 "E" Control Board Part Number A40-0 (factory); 2A1410-02 (service) "E" Control Board "OUTPUT TEST" Button (used to test relays on control board) WHITE K3 Connector Harvest Control (thermistor) RED K4 Connector Mechanical Bi ...

  • Hoshizaki KM-901MRH/3 - page 28

    8 "G" Control Board Part Number A379-0 "G" Control Board "ALARM RESET" Button "OUTPUT TEST" Button (used to test relays on control board) WHITE K3 Connector Harvest Control (thermistor) RED K4 Connector Mechanical Bin Control or K4 Jumper (thermostatic bin control application) Label (control board ...

  • Hoshizaki KM-901MRH/3 - page 29

    9 2. Features a) Maximum Water Supply Period - 6 minutes "E" control board: The inlet water valve is open during harvest for 6 minutes or the length of harvest, whichever is shorter. "G" control board: The inlet water valve is open during harvest for 6 minutes or the length of harvest minus 0 or 50 seconds (harvest pump timer ...

  • Hoshizaki KM-901MRH/3 - page 30

    30 f) LED Lights and Audible Alarm Safeties (1) "E" Control Board: Auxiliary Code T-0, U-0 At startup, a 5-second delay occurs while the control board conducts an internal timer check. A beep occurs when power is turned off. The red LED indicates proper control voltage and remains on unless a control voltage problem occurs. The green LEDs ...

  • Hoshizaki KM-901MRH/3 - page 31

    3 (2) "G" Control Board: Auxiliary Code U-1 and Later At startup, a 5-second delay occurs while the control board conducts an internal timer check. A beep occurs when the control switch is moved to the "ICE" position. The red LED indicates proper control voltage and remains on unless a control voltage problem occurs. The gree ...

  • Hoshizaki KM-901MRH/3 - page 32

    3 3. Controls and Adjustments CAUTION Dip switches are factory set. Failure to maintain factory settings may adversely affect performance and warranty coverage. For more information, contact Hoshizaki Technical Support at -800-33-940. a) Default Dip Switch Settings The dip switches are factory set to the following positions: S4 Dip Swit ...

  • Hoshizaki KM-901MRH/3 - page 33

    33 c) Pump-Out Timer (S4 dip switch 3 & 4) When a pump-out is called for, the pump motor de-energizes after the preceding freeze cycle. The pump motor energizes  seconds later in the reverse direction, taking water from the bottom of the tank and forcing pressure against the check valve seat allowing water to go through the check valve and d ...

  • Hoshizaki KM-901MRH/3 - page 34

    34 e) Bin Control Selector/Harvest Pump Timer (S4 dip switch 7) Depending on the control board, S4 dip switch 7 is either a bin control selector or harvest pump timer. CAUTION Do not adjust. This dip switch must be left in the factory default position or this unit will not operate correctly. (1) Bin Control Selector, "E" Control Board: Au ...

  • Hoshizaki KM-901MRH/3 - page 35

    35 g) Freeze Timer (S4 dip switch 9 & 10) CAUTION Adjust to proper specication, or the unit may not operate correctly. The freeze timer setting determines the maximum allowed freeze time to prevent possible freeze-up issues. Upon termination of the freeze timer, the control board initiates the harvest cycle. After  consecutive freeze time ...

  • Hoshizaki KM-901MRH/3 - page 36

    36 D. Bin Control 1. Thermostatic Bin Control: Auxiliary Code T-0, U-0 CAUTION When the ambient temperature is below 45°F (7°C), the thermostatic bin control switch opens and shuts down the icemaker even if the ice storage bin is empty. When the thermostat is set in the prohibited range, the icemaker operates continuously even if the ice storage ...

  • Hoshizaki KM-901MRH/3 - page 37

    37 III. Technical Information A. Water Circuit and Refrigeration Circuit 1. KM-901MAH (air-cooled) Water Supply Cleaning Valve Float Switch Drain Check Valve Expansion Valves Compressor Hot Gas Valve Check Valves High Pressure Switch Strainer Fan Drier Condenser Evaporator Access Valve Discharge Line Suction Line Water Pump Thermistor Spray Tubes I ...

  • Hoshizaki KM-901MRH/3 - page 38

    38 2. KM-901MWH (water-cooled) Water Supply Cleaning Valve Float Switch Drain Check Valve Expansion Valves Compressor Hot Gas Valve Check Valves High Pressure Switch Strainer Water Regulating Valve Drier Condenser Evaporator Access Valve Discharge Line Suction Line Water Pump Thermistor Spray Tubes Inlet Water Valve Freeze Pump-Out Water Tank Acces ...

  • Hoshizaki KM-901MRH/3 - page 39

    39 3. KM-901MRH/3 (remote air-cooled) Water Supply Cleaning Valve Float Switch Drain Check Valve Expansion Valves Compressor Hot Gas Valve Check Valves High Pressure Switch Strainer Fan Drier Condenser Evaporator Access Valve Discharge Line Suction Line Water Pump Thermistor Spray Tubes Inlet Water Valve Freeze Pump-Out Water Tank Access Valve Refr ...

  • Hoshizaki KM-901MRH/3 - page 40

    40 B. Wiring Diagrams 1. Thermostatic Bin Control: Auxiliary Code T-0, U-0 a) KM-901MAH (air-cooled) and KM-901MWH (water-cooled) * Transformer Output 0.5V at 5V * High Pressure Switch Air-Cooled Model Water-Cooled Model Cut-out 4±  PSIG 384±  PSIG Cut-in 37± PSIG 84± PSIG 0 0 Thermostatic Bin Contro ...

  • Hoshizaki KM-901MRH/3 - page 41

    4 b) KM-901MRH (remote air-cooled) * High Pressure Switch Cut-out 4±  PSIG Cut-in 37± PSIG 0 * Transformer Output 0.5V at 5V Thermostatic Bin Control: Auxiliary Code T-0, U-0 ...

  • Hoshizaki KM-901MRH/3 - page 42

    4 c) KM-901MRH3 (remote air-cooled) * High Pressure Switch Cut-out 4±  PSIG Cut-in 37± PSIG 0 * Transformer Output 0.5V at 5V Thermostatic Bin Control: Auxiliary Code T-0, U-0 ...

  • Hoshizaki KM-901MRH/3 - page 43

    43 2. Mechanical Bin Control: Auxiliary Code U-1 and Later a) KM-901MAH (air-cooled) and KM-901MWH (water-cooled) Mechanical Bin Control: Auxiliary Code U- and Later * Transformer Output 0.5V at 5V * High Pressure Switch Air-Cooled Model Water-Cooled Model Cut-out 4±  PSIG 384±  PSIG Cut-in 37± PSIG 84± ...

  • Hoshizaki KM-901MRH/3 - page 44

    44 b) KM-901MRH (remote air-cooled) * High Pressure Switch Cut-out 4±  PSIG Cut-in 37± PSIG 0 * Transformer Output 0.5V at 5V Mechanical Bin Control: Auxiliary Code U- and Later ...

  • Hoshizaki KM-901MRH/3 - page 45

    45 c) KM-901MRH3 (remote air-cooled) Mechanical Bin Control: Auxiliary Code U- and Later * Transformer Output 0.5V at 5V * High Pressure Switch Cut-out 4±  PSIG Cut-in 37± PSIG 0 ...

  • Hoshizaki KM-901MRH/3 - page 46

    46 C. Performance Data 1. KM-901MAH (air-cooled) Note: . Pressure data is recorded at 5 minutes into freeze cycle. The data not in bold should be used for reference only. . We reserve the right to make changes in specications and design without prior notice. 70/21 874 396 832 378 785 356 80/27 842 382 778 353 736 334 90/32 832 378 732 332 ...

  • Hoshizaki KM-901MRH/3 - page 47

    47 Note: . Pressure data is recorded at 5 minutes into freeze cycle. The data not in bold should be used for reference only. . We reserve the right to make changes in specications and design without prior notice. 2. KM-901MWH (water-cooled) 70/21 912 414 889 403 849 385 80/27 895 406 860 390 815 370 90/32 889 403 835 379 791 359 lbs./day k ...

  • Hoshizaki KM-901MRH/3 - page 48

    48 3. KM-901MRH (remote air-cooled) Note: . Pressure data is recorded at 5 minutes into freeze cycle. The data not in bold should be used for reference only. . We reserve the right to make changes in specications and design without prior notice. 70/21 889 403 859 389 803 364 80/27 866 393 818 371 755 343 90/32 859 389 785 356 724 328 lbs./ ...

  • Hoshizaki KM-901MRH/3 - page 49

    49 Note: . Pressure data is recorded at 5 minutes into freeze cycle. The data not in bold should be used for reference only. . We reserve the right to make changes in specications and design without prior notice. 4. KM-901MRH3 (remote air-cooled) 70/21 899 408 874 397 817 371 80/27 880 399 842 382 772 350 90/32 874 397 815 370 749 340 lbs. ...

  • Hoshizaki KM-901MRH/3 - page 50

    50 IV. Service Diagnosis WARNING . This unit should be diagnosed and repaired only by qualied service personnel to reduce the risk of death, electric shock, serious injury, or re. . Risk of electric shock. Use extreme caution and exercise safe electrical practices. 3. Moving parts (e.g., fan blade) can crush and cut. Keep hands clear. 4 ...

  • Hoshizaki KM-901MRH/3 - page 51

    5 3) 1-Minute Fill Cycle – LED 4 is on. WV energizes. After  minute, CB checks for a closed F/S. If F/S is closed, the harvest cycle begins. If closed, continue to step 4. If open, WV remains energized through additional -minute ll cycles until water lls the tank and closes F/S (low water safety). Diagnosis: If WV does not open, ch ...

  • Hoshizaki KM-901MRH/3 - page 52

    5 5) Freeze Cycle – LED 1 is on. Comp and FMR remain energized, PM, LLV, and FM energize. WV and HGV de-energize. The unit is held in freeze by a 5-minute short cycle protection timer (CB will not accept a signal from F/S). After the 5-minute short cycle protection timer expires, CB turns freeze termination over to F/S. Diagnosis: During the ? ...

  • Hoshizaki KM-901MRH/3 - page 53

    53 7) Normal Harvest Cycle – same as the initial harvest cycle – See "IV.A.4) Initial Harvest Cycle." 8) Shutdown a) Thermostatic Bin Control: Auxiliary Code T-0, U-0 When the unit is running hold ice in contact with the thermostatic bulb, TBC switch opens within 0 seconds, shutting down the unit. TBC is factory set, and generally ...

  • Hoshizaki KM-901MRH/3 - page 54

    54 3) The "OUTPUT TEST" button provides a relay sequence test. Make sure the control switch is in the "ICE" position, then press the "OUTPUT TEST" button. For the correct lighting sequence, see the table below. Note that the order of the LEDs from the outer edge of the control board is , 4, 3, . Components (e.g., ...

  • Hoshizaki KM-901MRH/3 - page 55

    55 2. Mechanical Bin Control Check and Cleaning: Auxiliary Code U-1 and Later a) Mechanical Bin Control Check To check the mechanical bin control switch, follow the steps below. ) Turn off the power supply. ) Remove the front panel, then move the control switch to the "OFF" position. 3) Remove the control box cover, then clear any i ...

  • Hoshizaki KM-901MRH/3 - page 56

    56 b) Mechanical Bin Control Cleaning Scale may build up on the mechanical bin control. Scale can cause the actuator paddle and magnet to stick. In this case, the mechanical bin control should be cleaned. WARNING CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are securely in place after the unit is serviced. Make sure that none h ...

  • Hoshizaki KM-901MRH/3 - page 57

    57 D. Float Switch Check and Cleaning 1. Float Switch Check To check the oat switch, follow the steps below. ) Turn off the power supply. ) Remove the front panel and move the control switch to the "OFF" position. 3) Remove the base cover, then disconnect one end of the pump tubing to drain the water tank. See Fig. . After the ...

  • Hoshizaki KM-901MRH/3 - page 58

    58 2. Float Switch Cleaning Depending on local water conditions, scale may build up on the oat switch. Scale on the switch can cause the oat to stick. In this case, the oat switch should be cleaned. ) Turn off the power supply. ) Remove the front panel, then move the control switch to the "OFF" position. 3) Remove the base ...

  • Hoshizaki KM-901MRH/3 - page 59

    59 E. Thermistor Check To check thermistor resistance, follow the steps below. ) Turn off the power supply. ) Remove the front panel, then move the control switch to the "OFF" position. 3) Remove the control box cover. 4) Remove the thermistor. See "V.L. Removal and Replacement of Thermistor." 5) Immerse the thermistor sen ...

  • Hoshizaki KM-901MRH/3 - page 60

    60 F. Diagnostic Charts 1. No Ice Production Problem Possible Cause Remedy [] The icemaker will not start. a) Power Supply . Off, blown fuse, or tripped breaker. . Turn on, replace, or reset. . Loose connection. . Tighten. 3. Bad contacts. 3. Check for continuity and replace. 4. Not within specications. 4. Refer to nameplate and c ...

  • Hoshizaki KM-901MRH/3 - page 61

    6 Problem Possible Cause Remedy [] The icemaker will not start. (continued) h) Transformer . Coil winding open or shorted. . Replace. i) Wiring to Control Board . Loose connections or open. . Check for continuity and replace. j) Interlock Switch (Cleaning Valve) . Open position. . Move to closed position. . Bad contacts. ...

  • Hoshizaki KM-901MRH/3 - page 62

    6 Problem Possible Cause Remedy [3] Compressor will not start or stops operating. a) Magnetic Contactor . Bad contacts. . Check for continuity and replace. . Coil winding open. . Replace. b) Start Capacitor or Run Capacitor . Defective. . Replace. c) Internal Overload Protector Open (check  through 3 to the right and d throu ...

  • Hoshizaki KM-901MRH/3 - page 63

    63 Problem Possible Cause Remedy [7] Fan motor will not start, or is not operating (except water-cooled model). a) Fan Motor . Motor winding open. . Replace. . Bearing worn out. . Replace. 3. Wiring to fan motor. 3. Check for loose connection or open, and replace. 4. Defective capacitor. 4. Replace. 5. Fan blade bound. 5. Check and repl ...

  • Hoshizaki KM-901MRH/3 - page 64

    64 Problem Possible Cause Remedy [] Freeze cycle time is too long. (continued) f) Thermistor . Disconnected, loose, or defective. . Connect, secure, check. See "V.L. Removal and Replacement of Thermistor." g) Refrigerant . Low charge. . Check for leaks. Recover, repair, evacuate, and recharge. h) Expansion Valve . Bulb l ...

  • Hoshizaki KM-901MRH/3 - page 65

    65 Problem Possible Cause Remedy [] All ice formed on evaporator does not fall into bin in harvest cycle. (continued) l) Refrigerant . Low charge. . Check for leaks. Recover, repair, evacuate, and recharge. m) Water Regulating Valve (water-cooled model) . Leaking by in harvest. . Check and replace. [3] Other. a) Ice Cube Guide . O ...

  • Hoshizaki KM-901MRH/3 - page 66

    66 Problem Possible Cause Remedy [] Freeze cycle time is long. (continued) n) Control Board . Float switch connection loose (K5). . Check and reconnect. . Defective. . See "IV.B. Control Board Check." [] Harvest cycle time is long. a) Water Supply . Water temperature too cold. . Increase temperature. b) Thermistor ...

  • Hoshizaki KM-901MRH/3 - page 67

    67 Problem Possible Cause Remedy [] Cloudy or irregular cubes. a) Evaporator . Frozen up. . See chart . . Scaled up. . Clean 3. Damaged. 3. Replace. b) Water System . Water supply line too small; requires 3/8" OD line dedicated per machine. . Increase water line size. . Water lter clogged or ow rate too small. ...

  • Hoshizaki KM-901MRH/3 - page 68

    68 V. Removal and Replacement of Components WARNING . This unit should be diagnosed and repaired only by qualied service personnel to reduce the risk of death, electric shock, serious injury, or re. . Move the control switch to the "OFF" position and turn off the power supply before servicing. 3. CHOKING HAZARD: Ensure all com ...

  • Hoshizaki KM-901MRH/3 - page 69

    69 2. Brazing WARNING . R-404A itself is not ammable at atmospheric pressure and temperatures up to 76°F (80°C). . R-404A itself is not explosive or poisonous. However, when exposed to high temperatures (open ames), R-404A can be decomposed to form hydrouoric acid and carbonyl uoride both of which are hazardous. 3. Do not use ...

  • Hoshizaki KM-901MRH/3 - page 70

    70 4) Close the low-side valve and high-side valve on the gauge manifold. 5) Disconnect the gauge manifold hose from the vacuum pump and attach it to a refrigerant service cylinder. Remember to loosen the connection and purge the air from the hose. For air-cooled and water-cooled models, see the nameplate for the required refrigerant charge. For re ...

  • Hoshizaki KM-901MRH/3 - page 71

    7 8) Attach the rubber grommets of the prior compressor to the new compressor. 9) Place the compressor in position and secure it using the bolts and washers. 0) Remove the drier, then place the new drier in position. ) Remove the plugs from the suction, discharge, and process pipes. ) Braze all ttings while purging with nitroge ...

  • Hoshizaki KM-901MRH/3 - page 72

    7 8) Use an electronic leak detector or soap bubbles to check for leaks. Add a trace of refrigerant to the system (if using an electronic leak detector), and then raise the pressure using nitrogen gas (40 PSIG). DO NOT use R-404A as a mixture with pressurized air for leak testing. 9) Evacuate the system, and charge it with refrigerant. For ai ...

  • Hoshizaki KM-901MRH/3 - page 73

    73 0) 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 rating label inside the icemaker. ) Replace the solenoid in its correct position. ) Replace the panels in their correct positions. 3) Turn o ...

  • Hoshizaki KM-901MRH/3 - page 74

    74 F. Removal and Replacement of Air-Cooled Condenser CAUTION . 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. Install the new drier with the arrow on the drier in the direction of the refrigerant ow. 3. When brazing, pro ...

  • Hoshizaki KM-901MRH/3 - page 75

    75 G. Removal and Replacement of Water-Cooled Condenser CAUTION . 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. Install the new drier with the arrow on the drier in the direction of the refrigerant ow. 3. When brazing, p ...

  • Hoshizaki KM-901MRH/3 - page 76

    76 H. Removal and Replacement of Remote Air-Cooled Condenser CAUTION . 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. Install the new drier with the arrow on the drier in the direction of the refrigerant ow. 3. When brazi ...

  • Hoshizaki KM-901MRH/3 - page 77

    77 I. Removal and Replacement of Water Regulating Valve (water-cooled model) CAUTION . 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. Install the new drier with the arrow on the drier in the direction of the refrigerant o ...

  • Hoshizaki KM-901MRH/3 - page 78

    78 Fig. 4 Adjustment Screw CW – Higher CCW – Lower Top View 8) Check for water leaks. 9) Replace the panels in their correct positions. 0) Turn on the power supply. J. Adjustment of Water Regulating Valve (water-cooled model) The water regulating valve (also called "water regulator") is factory set, and generally no adjustmen ...

  • Hoshizaki KM-901MRH/3 - page 79

    79 8) Braze all ttings with nitrogen gas owing at a pressure of 3 to 4 PSIG. 9) Use an electronic leak detector or soap bubbles to check for leaks. Add a trace of refrigerant to the system (if using an electronic leak detector), and then raise the pressure using nitrogen gas (40 PSIG). DO NOT use R-404A as a mixture with pressurized air fo ...

  • Hoshizaki KM-901MRH/3 - page 80

    80 0) Secure the insulation using plastic cable ties. ) Connect the white thermistor connector through the bushing of the control box to the control board WHITE K3 connector. Note: Do not cut the leads of the thermistor. ) Replace the control box cover and the panels in their correct positions. 3) Turn on the power supply. M. Remo ...

  • Hoshizaki KM-901MRH/3 - page 81

    8 ) Replace the front panel in its correct position. 3) Turn on the power supply. O. Removal and Replacement of Pump Motor ) Turn off the power supply. ) Remove the front panel. 3) Remove the base cover, then disconnect one end of the pump tubing to drain the water tank. See Fig. 6. After the water tank has drained, reconnect the ...

  • Hoshizaki KM-901MRH/3 - page 82

    8 P. Removal and Replacement of Control Board When replacing a control board follow the precautions below. CAUTION . The control board is fragile; handle very carefully. . The control board contains integrated circuits, which are susceptible to failure due to static discharge. It is especially important to touch the metal part of the unit ...

  • Hoshizaki KM-901MRH/3 - page 83

    83 VI. Cleaning and Maintenance WARNING CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are securely in place after any cleaning or maintenance is done to the unit. Make sure that none have fallen into the storage bin. A. Cleaning and Sanitizing Instructions Hoshizaki recommends cleaning and sanitizing this unit at least once a ye ...

  • Hoshizaki KM-901MRH/3 - page 84

    84 1. Cleaning Procedure ) Dilute 6 . oz. (473 ml) of the recommended cleaner Hoshizaki "Scale Away" or "LIME-A-WAY" (Economics Laboratory, Inc.) with 3 gal. ( l) of warm water. ) Remove all ice from the evaporator and the storage bin. Note: To remove cubes on the evaporator, turn off the power supply and turn ...

  • Hoshizaki KM-901MRH/3 - page 85

    85 9) Turn off the power supply after 3 minutes. 0) Remove the front panel and fully open the cleaning valve. ) Move the control switch to the "WASH" position. ) Replace the front panel in its correct position. 3) Turn on the power supply to rinse off the cleaning solution. 4) Turn off the power supply after 5 minu ...

  • Hoshizaki KM-901MRH/3 - page 86

    86 B. Maintenance This icemaker must be maintained individually, referring to the instruction manual and labels provided with the icemaker. WARNING . Only qualied service technicians should attempt to service or maintain this icemaker. . Disconnect power before performing service or maintenance. 1. Stainless Steel Exterior To prevent corro ...

  • Hoshizaki KM-901MRH/3 - page 87

    87 5) Attach a compressed air or carbon dioxide supply to the icemaker water supply line drain valve. 6) Move the control switch to the "ICE" position. 7) Replace the front panel in its correct position, then turn on the power supply. 8) Blow the icemaker water supply line out using the compressed air or carbon dioxide supply. 9) Close th ...

Fabricante Hoshizaki Categoría Ice Maker

Los documentos del dispositivo Hoshizaki KM-901MRH/3 que obtenemos del fabricante se pueden dividir en varios grupos. Entre ellos están::
- dibujos técnicos Hoshizaki
- manuales de instrucciones KM-901MRH/3
- hojas de producto Hoshizaki
- folletos informativos
- o etiquetas energéticas Hoshizaki KM-901MRH/3
Todos son importantes, pero lo más importante desde el punto de vista del usuario de un dispositivo lo encontraremos en el manual de instrucciones Hoshizaki KM-901MRH/3.

Un conjunto de documentos determinado como manual de instrucciones se divide también en tipos más detallados, tales como: instrucciones de montaje Hoshizaki KM-901MRH/3, instrucciones de servicio, instrucciones cortas o instrucciones de usuario Hoshizaki KM-901MRH/3. Dependiendo de la situación debes buscar el documento que necesitas. En nuestra página puedes consultar el manual de instrucciones más popular del producto Hoshizaki KM-901MRH/3.

Manuales de instrucciones parecidos

El manual de instrucciones del dispositivo Hoshizaki KM-901MRH/3, ¿cómo debería ser?
El manual de instrucciones, también determinado como el manual de usuario o simplemente instrucciones, es un documento técnico que tiene como objetivo ayudar a los usuarios a utilizar Hoshizaki KM-901MRH/3. Las instrucciones normalmente las realiza un escritor técnico pero en un lenguaje comprensible para todos los usuarios de Hoshizaki KM-901MRH/3.

El manual de instrucciones completo de Hoshizaki debe contener unos elementos básicos. Una parte de ellos es menos importante, como por ejemplo: la portada / la página principal o las páginas de autor. Sin embargo, lo demás debe facilitarnos la información más importante desde el punto de vista del usuario.

1. Introducción y pistas sobre cómo orientarse con el manual Hoshizaki KM-901MRH/3 - Al principio de cada manual se deben encontrar las indicaciones acerca de la manera de usar un manual de instrucciones. Debe contener información sobre dónde encontrar el índice Hoshizaki KM-901MRH/3, preguntas frecuentes o problemas más comunes – son los apartados más buscados por los usuarios de cada manual de instrucciones.
2. Índice - listados de todos los consejos acerca de Hoshizaki KM-901MRH/3 que encontraremos en el documento
3. Consejos de uso de las funciones básicas del dispositivo Hoshizaki KM-901MRH/3 - que deben facilitarnos los primeros pasos durante el uso de Hoshizaki KM-901MRH/3
4. Troubleshooting - una secuencia sistematizada de acciones que nos ayudará a diagnosticar los problemas más importantes con Hoshizaki KM-901MRH/3
5. FAQ - las preguntas frecuentes
6. Datos de contacto Información acerca de cómo encontrar los datos de contacto del fabricante / servicio de Hoshizaki KM-901MRH/3 en cada país si no somos capaces de solucionar el problema por nuestra cuenta.

¿Tienes una pregunta acerca de Hoshizaki KM-901MRH/3?

Utiliza el formulario que se encuentra abajo

Si con la ayuda del manual de instrucciones encontrado no has podido solucionar tu problema con Hoshizaki KM-901MRH/3, haz una pregunta utilizando el formulario que se encuentra abajo. Si alguno de los usuarios ha tenido un problema parecido con Hoshizaki KM-901MRH/3 probablemente compartirá una forma de solucionarlo.

Copia el texto de la imagen

Captcha
Nueva imagen

Comentarios (0)