Manuals / Hoshizaki / Kitchen Appliance / Refrigerator

Hoshizaki 73183 service manual 3. CF1B-FS/HS, CF3B-FS/HS, High-Pressure Switch, Defrost Thermostat

Models: 73183

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3. CF1B-FS/HS, CF3B-FS/HS

* High-Pressure Switch

Cut-out	490±10 PSIG

Cut-in	370±20 PSIG

** Defrost Thermostat

Cut-out	120°F±5°F (49°C±3°C)
Cut-in	70°F±5°F (21°C±3°C)

Page 24

Image 24

Hoshizaki 73183 service manual 3. CF1B-FS/HS, CF3B-FS/HS, High-Pressure Switch, Defrost Thermostat

Contents

Commercial Series Refrigerated Kitchen Equipment Models Reach-In B-SeriesHoshizakiHoshizaki America, Inc Complete and detailed explanation of the problem HOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GAAttn Hoshizaki Technical Support Department Phone 1-800-233-1940 Technical Support 770 487-2331 FaxCONTENTS D. Diagnostic Chart V. Replacement of ComponentsA. Service for Refrigerant Lines 1. Refrigerant RecoveryImportant Safety Information Indicates a hazardous situation which could result in death orserious injury Indicates a situation which could result in damage to the unitPage I. Specifications A. Nameplate Ratings B. Dimensions1. 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 ModelsB. Sequence of Operation 1. Sequence Cycles and Shutdowna Refrigerator 1. Startup/Cool Downb Freezer 1. Startup/Cool Down2. Cool Down Achieved 3. Cool Down RestartRefrigerator Sequence Flow Chart Chartsa Refrigerator 2. Sequence FlowFreezer Sequence Flow Chart b Freezer1. Startup/Cool Down 2. Cool Down AchievedC. Display Module 1. Display Module Layout Display Module2. Controls and Adjustments a Default Settingsb Temperature Setpoint c Changing the Temperature Display Scale F or CD. Control Module Refrigerator Control ModuleFreezer Control Module 1. Control Module Layout2. Alarm Safeties Alarm SignalsAlarm Code Problem3. High-Pressure Switch F. Mullion/Perimeter HeaterG. Thermistors 1. Compressor External or Internal OverloadIII. Technical Data A. Refrigeration Circuit B. Wiring Diagrams High-Pressure Switch1. CR1B-FS/HS, CR3B-FS/HS High-Pressure Switch 2. CR2B-FS/HS, CR3B-FS/HSHigh-Pressure Switch 3. CF1B-FS/HS, CF3B-FS/HSDefrost Thermostat High-Pressure Switch 4. CF2B-FS/HS, CF3B-FS/HSDefrost Thermostat 5. CR3B-FS/HS Receptacle Box Connection 6. CF3B-FS/HS Receptacle Box ConnectionNote Only the top receptacles have power Note Only the top receptacles have powerIV. Service Diagnosis A. Diagnostic Procedure1. Refrigerator 9 Defrost Defrost Diagnosis2. Freezer 9 Defrost Defrost DiagnosisPage B. Control Module Check Startup/Cool DownDefrost C. Thermistor Check D. Diagnostic Chart 1. Unit Not Cooling2. Evaporator is Frozen Up 3. Defrost Fails to TerminateUnit Not Cooling - Possible Cause Evaporator is Frozen Up - Possible CauseV. Replacement of Components A. Service for Refrigerant Lines1. Refrigerant Recovery 2. Brazing 3. Evacuation and Recharge4 Close the low-side valve and high-side valve on the gauge manifold B. Important Notes for Component Replacement C. Door Re-Hingingcomponents ground wire ComponentA. Cleaning B. Maintenance2. Power Supply Connection 1. ExteriorC. Shutdown and Long Storage