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Hoshizaki 73183 service manual B. Wiring Diagrams, 1. CR1B-FS/HS, CR3B-FS/HS, High-Pressure Switch

Models: 73183

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B. Wiring Diagrams

1. CR1B-FS/HS, CR3B-FS/HS

* High-Pressure Switch

Cut-out	270±10 PSIG

Cut-in	190±20 PSIG

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Hoshizaki 73183 service manual B. Wiring Diagrams, 1. CR1B-FS/HS, CR3B-FS/HS, High-Pressure Switch

Contents

Reach-In B-Series Commercial Series Refrigerated Kitchen Equipment ModelsHoshizakiHoshizaki America, Inc Attn Hoshizaki Technical Support Department Complete and detailed explanation of the problemHOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GA Phone 1-800-233-1940 Technical Support 770 487-2331 FaxCONTENTS A. Service for Refrigerant Lines D. Diagnostic ChartV. Replacement of Components 1. Refrigerant Recoveryserious injury Important Safety InformationIndicates a hazardous situation which could result in death or Indicates a situation which could result in damage to the unitPage B. Dimensions I. Specifications A. Nameplate Ratings1. Refrigerated Volume and Shelf Space 2. One Section/Two Section/Three Section Unit mm inII. General Information A. Construction 1. One Section2. Two Section 3. Three Section Model Shown CR3B-FS Modelsa Refrigerator B. Sequence of Operation1. Sequence Cycles and Shutdown 1. Startup/Cool Down2. Cool Down Achieved b Freezer1. Startup/Cool Down 3. Cool Down Restarta Refrigerator Refrigerator Sequence Flow ChartCharts 2. Sequence Flow1. Startup/Cool Down Freezer Sequence Flow Chartb Freezer 2. Cool Down AchievedC. Display Module 1. Display Module Layout Display Moduleb Temperature Setpoint 2. Controls and Adjustmentsa Default Settings c Changing the Temperature Display Scale F or CFreezer Control Module D. Control ModuleRefrigerator Control Module 1. Control Module LayoutAlarm Code 2. Alarm SafetiesAlarm Signals ProblemG. Thermistors 3. High-Pressure SwitchF. Mullion/Perimeter Heater 1. Compressor External or Internal OverloadIII. Technical Data A. Refrigeration Circuit High-Pressure Switch B. Wiring Diagrams1. CR1B-FS/HS, CR3B-FS/HS High-Pressure Switch 2. CR2B-FS/HS, CR3B-FS/HS3. CF1B-FS/HS, CF3B-FS/HS High-Pressure SwitchDefrost Thermostat 4. CF2B-FS/HS, CF3B-FS/HS High-Pressure SwitchDefrost Thermostat Note Only the top receptacles have power 5. CR3B-FS/HS Receptacle Box Connection6. CF3B-FS/HS Receptacle Box Connection Note Only the top receptacles have powerIV. Service Diagnosis A. Diagnostic Procedure1. Refrigerator 9 Defrost Defrost Diagnosis2. Freezer 9 Defrost Defrost DiagnosisPage Startup/Cool Down B. Control Module CheckDefrost C. Thermistor Check D. Diagnostic Chart 1. Unit Not CoolingUnit Not Cooling - Possible Cause 2. Evaporator is Frozen Up3. Defrost Fails to Terminate Evaporator is Frozen Up - Possible CauseA. Service for Refrigerant Lines V. Replacement of Components1. Refrigerant Recovery 2. Brazing 3. Evacuation and Recharge4 Close the low-side valve and high-side valve on the gauge manifold components ground wire B. Important Notes for Component ReplacementC. Door Re-Hinging Component2. Power Supply Connection A. CleaningB. Maintenance 1. ExteriorC. Shutdown and Long Storage