Related Manuals for Hoshizaki F420
Summarization of Contents
Safety Information
General Safety Warnings
Initial warnings regarding personal injury and product damage from improper use.
Appliance Handling and Usage Safety
Precautions for child usage, sharp edges, transport, and electrical cord safety.
Flammable Refrigerant Safety
Refrigerant Handling Precautions
Warnings about flammable refrigerant (R600a) and requirements for trained technicians.
General Appliance Safety Warnings
Warnings related to ventilation, mechanical devices, sharp objects, circuit damage, and stored substances.
Additional Safety Precautions
Placement and Emergency Response
Guidelines for appliance placement near ignition sources and emergency actions in case of damage.
Installation Procedures
Unpacking and Pallet Removal
Procedures for checking packaging, removing transport pallet, and initial handling.
Post-Transport Handling and Floor Protection
Guidelines for letting the unit settle and protecting floors during movement.
Installation: Placement and Setup
Optimal Location Requirements
Guidelines for selecting a dry, ventilated location away from heat sources and corrosive environments.
Pre-use Cleaning and Film Removal
Instructions for cleaning the product and removing protective films before operation.
Leveling and Castor Locking
Ensuring the unit is level and locking castors for stability and proper door closure.
Installation: Mounting and Clearances
Wall Fastening and Installation Options
Securing glass door cabinets to a stable surface and options for freestanding or under-worktop installation.
Ventilation Clearances
Required air circulation space around the appliance for efficient operation.
Moving the Appliance
Securing and Transport Precautions
Steps for securing the door and ensuring no products are inside during transport.
Energy Consumption Optimization
Optimal Placement and Usage
Tips for efficient operation including location, door usage, and temperature settings.
General Description
Component Identification
Diagram showing major components of the refrigerator/freezer.
Refrigerant and GWP Values
Table detailing refrigerant type, charge, GWP, and CO2 equivalent for different models.
Electrical Connection
Connection Guidelines
Instructions for connecting the power cord to the main supply inlet and voltage/frequency details.
Extension Cord and Service Advice
Warnings against extension cords and advice on service during/after warranty.
Safety Practices and Protective Devices
Recommended protective devices, power disconnection, and safe handling of electrical parts.
Starting Up
Display and Control Panel Overview
Explanation of the display unit, keys, and control lights.
Powering On and Off Procedure
Procedure for turning the cabinet on and off using the power button.
Temperature Setting Guide
Step-by-step guide to adjust the temperature using the control panel buttons.
Temperature Alarm
Alarm Indicators and Types
Explanation of the alarm lamp and different alarm codes (AL, AH, Id).
Displaying and Selecting Alarm Values
Procedure to view and select specific alarm values like temperature, duration, or selected alarm.
Alarm Deletion Procedure
Steps to reset or delete active alarms from the controller.
Error Codes and Defrosting
Error Code Interpretation
Explanation of error codes Pr1 and Pr2 related to sensor defects.
Automatic and Manual Defrosting
How automatic defrosting works and how to initiate manual defrosting.
Defrost Water Management
How defrost water is collected and evaporated.
Service Parameters and Defaults
Setting Service Parameters
Detailed steps for accessing and adjusting service parameters and their values.
Restoring Default Settings
Procedure to reset the controller to its original factory default settings.
Configuration Parameters
Setpoint and Sensor Input Settings
Parameters for room temperature, hysteresis, and sensor configuration.
Operation and Compressor Protection Settings
Parameters for unit operation, compressor timings, and error handling.
Defrosting Settings
Parameters controlling defrosting interval, type, temperature limits, and activation.
How to Replace Evaporator Fan Motor
Evaporator Fan Motor Replacement
Step-by-step instructions for replacing the evaporator fan motor.
How to Replace Foil Heater
Foil Heater Replacement
Step-by-step instructions for removing and replacing the foil heater.
How to Replace Drip Tray
Drip Tray Replacement Procedure
Steps for removing and replacing the drip tray without damaging the re-evaporation pipe.
Reversing the Door
Door Reversal (K and F Models)
Instructions for changing the door hinge from right to left or vice versa for K and F models.
Reversing the Glass Door
Glass Door Reversal (KG and FG Models)
Instructions for reversing the glass door hinge for KG and FG models.
How to Replace Condenser Coil
Condenser Coil Replacement
Step-by-step instructions for removing and replacing the condenser coil.
How to Replace Evaporator Coil
Evaporator Coil Replacement
Instructions for removing and replacing the evaporator coil, including suction tubing.
How to Replace Controller Board
Controller Board Replacement
Steps for replacing the controller board, noting no program setting is needed.
How to Replace Defrost Heater
Defrost Heater Replacement
Instructions for replacing the defrost heater, including removing clips and connectors.
Controller Connections
Main Controller Board Connections
Identification of connectors for fan, compressor, power, and door switch.
Sensor and Probe Connections
Identification of sensor probes for room/application and defrost/evaporator.
Evaporator Sensor Location
Evaporator Sensor Positioning
Indication of the evaporator sensor's position within the appliance.
Air Duct Removal
Air Duct Removal Procedure
Steps for removing the air duct by pressing mountings.
Wiring Diagram K220-K420
K220-K420 Wiring Components
Schematic showing electrical connections for K220-K420 models.
Wiring Diagram F220-F420
F220-F420 Wiring Components
Schematic showing electrical connections for F220-F420 models.
Wiring Diagram KG220-KG420
KG220-KG420 Wiring Components
Schematic showing electrical connections for KG220-KG420 models.
Wiring Diagram FG220-FG420
FG220-FG420 Wiring Components
Schematic showing electrical connections for FG220-FG420 models.
Piping Diagram
Refrigeration Circuit Diagram (K/F Models)
Diagram illustrating the refrigeration piping for K/F 220/420 models.
Refrigeration Circuit Diagram (KG Models)
Diagram illustrating the refrigeration piping for KG 220/420 models.
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