Hoshizaki FS-1022MLH-C User Manuals

Table of Contents

• Important Safety Information

  5
• I. Specifications

  7
  • A. Icemaker

    7
  • B. Condensing Unit

    8
• II. General Information

  9
  • A. Construction

    9
    • 1. Icemaker

      9
    • 2. Condensing Unit

      10
    • 3. Icemaking Unit

      11
  • B. Sequence of Operation

    12
    • 1. Sequence Cycles and Shutdown

      12
      • a) Fill Cycle

        12
      • b) Ice Purge Cycle

        12
      • c) Freeze Cycle

        12
      • d) Drain Cycle

        13
      • e) Shutdown Cycle

        14
    • 2. Sequence Flow Chart

      15
  • C. Control Board

    16
    • 1. Control Board Layout

      17
    • 2. LED Lights and Audible Alarm Safeties

      18
    • 3. Controls and Adjustments

      19
      • a) Default Dip Switch Settings

        19
      • b) Infrared Sensor Shutdown Delay (S1 dip switch 1, 2, 3)

        19
      • c) Drain Frequency Control (S1 dip switch 4)

        20
      • d) Continuous Dispensing Timer (S1 dip switch 5 & 6)

        20
      • e) Bin Control Selector (S1 dip switch 7)

        20
      • f) Mechanical Bin Control Shutdown Delay (S1 dip switch 8)

        21
      • g) Factory Use (S1 Dip Switch 9 & 10)

        21
• III. Technical Information

  22
  • A. Water Circuit and Refrigeration Circuit

    22
  • B. Wiring Diagrams

    23
    • 1. FS-1022MLH-C

      23
    • 2. SRC-10H

      24
  • C. Performance Data

    25
• IV. Service Diagnosis

  26
  • A. Ice Production Check

    26
  • B. Diagnostic Procedure

    26
  • C. Control Board Check

    30
  • D. Bin Control Check

    33
    • 1. Infrared Sensor Check

      33
    • 2. Mechanical Backup Bin Control Check

      34
  • E. Float Switch Check and Cleaning

    36
    • 1. Float Switch Check

      36
    • 2. Float Switch Cleaning

      36
  • F. Diagnostic Charts

    38
• V. Removal and Replacement of Components

  41
  • A. Service for Refrigerant Lines

    41
    • 1. Refrigerant Recovery

      42
    • 2. Brazing

      42
    • 3. Evacuation and Recharge (R-404A)

      42
  • B. Important Notes for Component Replacement

    43
    • 1. Upper Bearing Wear Check

      45
    • 2. Removal and Replacement of Cutter

      45
    • 3. Removal and Replacement of Extruding Head

      46
    • 4. Removal and Replacement of Auger

      46
    • 5. Removal and Replacement of Evaporator

      47
    • 6. Removal and Replacement of Mechanical Seal and Lower Housing

      48
    • 7. Removal and Replacement of Gear Motor

      49
• VI. Cleaning and Maintenance

  51
  • A. Cleaning and Sanitizing Instructions

    51
    • 1. Cleaning Solution

      51
    • 2. Cleaning Procedure

      51
    • 3. Sanitizing Solution

      53
    • 4. Sanitizing Procedure - Initial

      53
    • 5. Sanitizing Procedure - Final

      54
  • B. Maintenance

    55
  • C. Preparing the Icemaker for Long Storage

    57