Manuals / Hoshizaki / Kitchen Appliance / Refrigerator

Hoshizaki 73183 service manual 4. CF2B-FS/HS, CF3B-FS/HS, High-Pressure Switch, Defrost Thermostat

Models: 73183

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4. CF2B-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 25

Image 25

Hoshizaki 73183 service manual 4. CF2B-FS/HS, CF3B-FS/HS, High-Pressure Switch, Defrost Thermostat

Contents

Reach-In B-Series Commercial Series Refrigerated Kitchen Equipment ModelsHoshizakiHoshizaki America, Inc HOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GA Complete and detailed explanation of the problemAttn Hoshizaki Technical Support Department Phone 1-800-233-1940 Technical Support 770 487-2331 FaxCONTENTS V. Replacement of Components D. Diagnostic ChartA. Service for Refrigerant Lines 1. Refrigerant RecoveryIndicates a hazardous situation which could result in death or Important Safety Informationserious injury Indicates a situation which could result in damage to the unitPage B. Dimensions I. Specifications A. Nameplate Ratings1. Refrigerated Volume and Shelf Space Unit mm in 2. One Section/Two Section/Three Section1. One Section II. General Information A. Construction2. Two Section Model Shown CR3B-FS Models 3. Three Section1. Sequence Cycles and Shutdown B. Sequence of Operationa Refrigerator 1. Startup/Cool Down1. Startup/Cool Down b Freezer2. Cool Down Achieved 3. Cool Down RestartCharts Refrigerator Sequence Flow Charta Refrigerator 2. Sequence Flowb Freezer Freezer Sequence Flow Chart1. Startup/Cool Down 2. Cool Down Achieved1. Display Module Layout Display Module C. Display Modulea Default Settings 2. Controls and Adjustmentsb Temperature Setpoint c Changing the Temperature Display Scale F or CRefrigerator Control Module D. Control ModuleFreezer Control Module 1. Control Module LayoutAlarm Signals 2. Alarm SafetiesAlarm Code ProblemF. Mullion/Perimeter Heater 3. High-Pressure SwitchG. Thermistors 1. Compressor External or Internal OverloadIII. Technical Data A. Refrigeration Circuit High-Pressure Switch B. Wiring Diagrams1. CR1B-FS/HS, CR3B-FS/HS 2. CR2B-FS/HS, CR3B-FS/HS High-Pressure Switch3. CF1B-FS/HS, CF3B-FS/HS High-Pressure SwitchDefrost Thermostat 4. CF2B-FS/HS, CF3B-FS/HS High-Pressure SwitchDefrost Thermostat 6. CF3B-FS/HS Receptacle Box Connection 5. CR3B-FS/HS Receptacle Box ConnectionNote Only the top receptacles have power Note Only the top receptacles have powerA. Diagnostic Procedure IV. Service Diagnosis1. Refrigerator Defrost Diagnosis 9 Defrost2. Freezer Defrost Diagnosis 9 DefrostPage Startup/Cool Down B. Control Module CheckDefrost C. Thermistor Check 1. Unit Not Cooling D. Diagnostic Chart3. Defrost Fails to Terminate 2. Evaporator is Frozen UpUnit Not Cooling - Possible Cause Evaporator is Frozen Up - Possible CauseA. Service for Refrigerant Lines V. Replacement of Components1. Refrigerant Recovery 3. Evacuation and Recharge 2. Brazing4 Close the low-side valve and high-side valve on the gauge manifold C. Door Re-Hinging B. Important Notes for Component Replacementcomponents ground wire ComponentB. Maintenance A. Cleaning2. Power Supply Connection 1. ExteriorC. Shutdown and Long Storage