Hoshizaki M029-897 Manual de usuario

Hoshizaki “A Superior Degree of Reliability” www.hoshizaki.com ModelIM-500SAAStackable Square Cuber Hoshizaki America, Inc. SERVICE MANUALNumber: M02

10ET temperature is recorded 30 seconds after PM energizes. Water temperature correction value (CB Setting 13) is added to ET temperature and this is

11C. Service Diagnosis TableFirst see "III.G. Error Codes." If there are no recorded errors, refer to the table below.No Ice Production - Po

12Low Ice Production - Possible CauseLong Harvest Cycle1. Evaporator a) Scaled up.2. Refrigerant Charge a) Low.3. Control Board a) Thermistor connecti

13Large-Hole Cubes - Possible Cause (Also see III.H.1. Dimple Diameter") 4. Icemaker Location a) Insufficient clearance.b) Ambient temperature to

14D. Bin Control Check and Cleaning1. Bin Control CheckThis appliance uses a lever-actuated proximity switch to control the ice level in the storage b

152. Bin Control CleaningScale may build up on BC. Scale can cause the actuator paddle and magnet to stick. In this case, BC should be cleaned. WARNIN

16E. Evaporator Thermistor CheckTo check thermistor resistance, follow the steps below.1) Turn off the power supply. 2) Remove the front panel. Move t

17III. Controls and AdjustmentsA. Control SwitchThe control switch has three positions: OFF for power off, ICE for icemaking, and WASH to energize the

181. Control Board Layout• CN16 ConnectorActuator Motor Position Sensor (Hall IC) Input• CN11 ConnectorBin Control Input• CN13 ConnectorEvaporator (Cu

19C. Control ButtonsThe control board features RESET, SERVICE 1, and SERVICE 2 Buttons1. RESET Button• Press briey to go to initial harvest cycle.• P

2 WARNINGOnly qualied service technicians should install and service the appliance. To obtain the name and phone number of your local Hoshizaki Certi

20D. Control Board SettingsNOTICEFailure to maintain factory settings may adversely affect performance and warranty coverage. For more information, co

21Control Board (CB) Setting MenuCategory No. Item RangeIM-500SAA DefaultWater Supply, continued12Freeze Cycle Water Supply Time 1: Partial Drain (CB

22Control Board (CB) Setting MenuCategory No. Item RangeIM-500SAA DefaultCompressor 37Compressor Output SelectionDO NOT ADJUST0: X8 (DC Relay) On1: X1

23Control Board (CB) Setting MenuCategory No. Item RangeIM-500SAA DefaultWater Tank Ice Control & Harvest Cycle Low Temperature Control74Water Tan

24Control Board Information DisplayNo. Item DescriptionHistory Cleared by Pressing and Holding SERVICE 1 and SERVICE 2 Buttons Simultaneously for 5Se

25F. Control Board Model Code Setting1. Control Board Replacement WARNING• This appliance should be diagnosed and repaired only by qualied service pe

265) Press the "SERVICE 1" button to increase the rst digit in the display and the "SERVICE2" button to increase the second digi

27G. Error CodesWhen the control board detects an error, the display shows one of the following error codes in the display mode. Error codes other tha

28Error CodesError CodeProblem Corrective Action/Reset DetailsEE (E5)High Evaporator TemperatureIf evaporator temperature 140°F (60°C) or higher for 5

293) Press the "SERVICE 2" button to lower freeze cycle termination temperature setting (Control Board Setting 2). Temperature setting lower

3CONTENTSImportant Safety Information ... 4I. Constructi

30IV. Refrigeration Circuit and Component Service Information WARNING• This appliance should be diagnosed and repaired only by qualied service person

312. Brazing WARNING• R-404A itself is not ammable at atmospheric pressure and temperatures up to 176°F (80°C).• R-404A itself is not explosive or po

325) Disconnect the gauge manifold hose from the vacuum pump and attach it to a refrigerant service cylinder. Remember to loosen the connection and pu

33Water Pan AssemblyRefer to illustration for assembly.Icemaking Assembly and Cam MechanismRefer to illustration for assembly.1. Water Tank2. Water Pl

34V. MaintenanceThe maintenance schedule below is a guideline. More frequent maintenance may berequired depending on water quality, the appliance&apos

35VI. Preparing the Icemaker for Periods of Non-UseNOTICE• When storing the appliance for an extended time or in sub-freezing temperatures, follow the

36VII. DisposalThe appliance contains refrigerant and must be disposed of in accordance with applicable national, state, and local codes and regulatio

37VIII. Technical InformationWe reserve the right to make changes in specications and design without prior notice.A. Specication Data1. IM-500SAAAC

38B. Performance DataPressure data is recorded at 5 min. into freezing cycle. The data not in bold should be used for reference only.1. IM-500SA

39C. Wiring Diagram1. IM-500SAA

4Important Safety InformationThroughout this manual, notices appear to bring your attention to situations which could result in death, serious injury,

5 WARNING, continued• The appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or

6I. Construction and Water/Refrigeration Circuit DiagramA. Construction1. Air-Cooled Model (SAA)Model Shown: IM-500SAAWater TankBin ControlEvaporator

7B. Water/Refrigeration Circuit Diagram1. Air-Cooled Model (SAA)Thermostatic Expansion ValveEvaporatorEvaporator ThermistorWater TankWater PumpCondens

8II. Sequence of Operation and Service DiagnosisA. Sequence of Operation Flow ChartLegend: AMD–actuator motor downAMU–actuator motor upBC–bin controlC

9B. Sequence of Operation1. Startup CycleWhen power supply is turned on, "on" appears on CB display and HGV energizes. 30sec. later, harves