B. Water/Refrigeration Circuit Diagram

1. Air-Cooled Model (SAA)

Inlet

Water

Valve

Thermostatic Expansion Valve

Evaporator

Evaporator Thermistor

Water	Water Tank
Water
Pump

Condenser

Hot Gas

Heat Exchanger

Fan Motor

Valve Strainer

Compressor

Drier

Water Circuit

Refrigerant Circuit

Page 7

Image 7

Hoshizaki M029-897 service manual B. Water/Refrigeration Circuit Diagram, Air-Cooled Model SAA, Water Tank

Contents

Stackable Square Cuber Model IM-500SAA HoshizakiHoshizaki America, Inc Attn Hoshizaki Technical Support Department Complete and detailed explanation of the problemPhone 1-800-233-1940 770 Fax 618 Highway 74 South Peachtree City, GA CONTENTS appliance or property Important Safety Informationserious injury Indicates a situation which could result in damage to the WARNING, continued A. Construction I. Construction and Water/Refrigeration Circuit Diagram1. Air-Cooled Model SAA Water Tank B. Water/Refrigeration Circuit Diagram IM Control Board II. Sequence of Operation and Service DiagnosisA. Sequence of Operation Flow Chart Shutdown and Restart Sequence Flow Chart 3. Freeze Cycle B. Sequence of Operation1. Startup Cycle 2. Harvest Cycle 4. Shutdown No Ice Production - Possible Cause C. Service Diagnosis Table Slab Does Not Break Into Separate Cubes - Possible Cause Low Ice Production - Possible CauseLong Harvest Cycle Long Freeze Cycle Cloudy Cubes - Possible Cause 1. Bin Control Check D. Bin Control Check and Cleaning 2. Bin Control Cleaning E. Evaporator Thermistor Check B. Control Board III. Controls and Adjustments A. Control Switch IM Control Board 1. Control Board LayoutPart Number P01873-01 Version 1.3A or Later 2. SERVICE 1 and SERVICE 2 Buttons 1. RESET ButtonC. Control Buttons D. Control Board Settings Freeze Cycle Water Supply Time 1 Partial Drain CB water supply time 1 CB Setting 12 timer terminatesFreeze Cycle Water Supply Time 2 Partial Drain CB IM-500SAA 4. Press the RESET button to return to list E. Control Board Information Display2. Use the SERVICE 1 and SERVICE 2 buttons to move through the list 3. Press the RESET button to view the item’s value example, 655,350 cycles Freeze cycles interrupted by bin control shutdown1.0A, displays as follows 1. Control Board Replacement F. Control Board Model Code Setting2. Checking or Changing the Control Board Model Code Page G. Error Codes b To decrease dimple diameter H. Quick Adjustments1. Dimple Diameter a To increase dimple diameter Normal Position 2. Ice ClarityDrain Position A. Refrigeration Circuit Service Information IV. Refrigeration Circuit and Component Service Information1. Refrigerant Recovery 3. Evacuation and Recharge R-404A 2. Brazing B. Component Service Information G. Water Pan Assembly Refer to illustration for assemblyAssembly J. Pump Motor Assembly V. Maintenance 1. Remove the water from the icemaker water supply line VI. Preparing the Icemaker for Periods of Non-Use2. Drain the water tank VII. Disposal VIII. Technical Information A. Specification Data1. IM-500SAA B. Performance Data 1. IM-500SAA C. Wiring Diagram

Hoshizaki M029-897 B. Water/Refrigeration Circuit Diagram, Air-Cooled Model SAA, Water Tank

Models: M029-897

B. Water/Refrigeration Circuit Diagram

Water Tank