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Hoshizaki EF2A-FS User Manual

Hoshizaki EF2A-FS
32 pages
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FREEZER
Service Manual
ER1A-FS
ER2A-FS
EF1A-FS
EF2A-FS
Issued: 07-26-2019
Revised: 07-14-2020

Questions and Answers:

Hoshizaki EF2A-FS Specifications

General IconGeneral
TypeFreezer
Temperature Range-10°F to 10°F
Voltage115 V
Frequency60 Hz
Defrost TypeManual
Power SupplyElectric

Summary

General Information

Construction: ER1A-FS, EF1A-FS

Details construction of ER1A-FS/EF1A-FS, covering evaporator, lighting, cabinet, shelves, door, and base.

Construction: ER2A-FS, EF2A-FS

Details construction of ER2A-FS/EF2A-FS, including control module, evaporator, lighting, cabinet, shelves, door, and base.

Refrigeration Circuit

Illustrates the refrigeration system's components and gas flow, including compressor, condenser, evaporator, and drier.

Sequence of Operation and Service Diagnosis

Sequence Flow Chart: Cooler ER1A-FS, ER2A-FS

Outlines operational steps and states during startup, cooldown, defrost, and termination for cooler models ER1A-FS/ER2A-FS.

Sequence Flow Chart: Freezer EF1A-FS, EF2A-FS

Outlines operational steps and states during startup, cooldown, defrost, and termination for freezer models EF1A-FS/EF2A-FS.

Service Diagnosis Overview

Provides an overview of service diagnosis, including critical safety warnings for fire/explosion risks with refrigerants.

Troubleshooting Common Issues

Offers a diagnostic table for common issues like "Not Cooling," "Too Much Cooling," and "Evaporator Frozen Up."

Control Module Diagnostics

Explains control module checks, operation, and how to address alarm signals, their causes, and outputs.

Startup and Cool Down Procedures

Details steps for checking the control module during startup/cooldown, including wiring and voltage checks.

Thermistor Diagnostics

Provides step-by-step instructions for checking cabinet thermistor resistance to diagnose temperature control issues.

Refrigeration Circuit and Component Service Information

Refrigerant Line Service Procedures

Covers essential refrigerant line maintenance procedures: leak detection, recovery, brazing, evacuation, and recharging.

Appliance Maintenance

Discusses routine maintenance for the appliance, focusing on the condenser and power supply connection.

Preparing the Appliance for Periods of Non-Use

Disposal

Technical Information

Electrical and Refrigerant Specifications

Presents detailed electrical specifications and refrigerant data for various models in a tabular format.

Wiring Diagrams

Provides electrical wiring diagrams for specific models, illustrating component connections and wire routing.

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