Hoshizaki ROX-20TA-U service manual General Information Safety Instructions

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I. GENERAL INFORMATION

1. SAFETY INSTRUCTIONS

The following instructions contain important safety precautions and should be strictly observed. The terms used here are defined as follows:

WARNING: There is a possibility of death or serious injury for the service person and a third party or the user due to improper service operations or defects in serviced products.

CAUTION: There is possibility of injury of the service person and a third party or the user or damage to their property* due to improper service operations or defects in serviced products.

*The term “damage to their property” here refers to extensive damage to houses, household effects, livestock and pets.

WARNING

1.When there is no need to energize the unit during disassembly or cleaning, be sure to unplug the unit or disconnect the main power supply before servicing the unit to prevent electric shocks.

2.If the unit must be energized for inspection of the electric circuit, use rubber gloves to avoid contact with any live parts, which may result in electric shocks.

3.Check for proper earth connections, and repair if necessary to prevent electric shocks.

4.Always use service parts intended for the applicable model for replacement of defective parts. Use proper tools to secure the wiring. Otherwise abnormal operation or trouble may occur and cause electric leaks or fire.

5.Check for proper part installations, wiring conditions and soldered or solderless terminal connections to avoid smoke, fire or electric shocks.

6.Be sure to replace damaged or deteriorated power cords and lead wires to prevent electric shocks, flames or smoke.

7.Lead wires using solderless terminals or the like must be bound with their closed ends up to avoid entrance of moisture that could lead to electric leaks or fire.

8.After servicing, always use a megohmmeter (DC500V) to check for the insulation resistance of minimum 1 megohm between the live part (attachment plug) and the dead metal part (earth terminal). Negligence in checking may cause electric leaks or shocks.

9.Do not service the electrical parts with wet hands to prevent electric leaks or shocks.

U8AA5540012

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Contents Model ROX-20TA-U Contents General Information Safety Instructions U8AA5540012 Product Information DIMENSIONS/CONNECTIONS Features of Strong Acid Water Principle of Strong Acid Water Generation II. Construction General U8AA5540012 Control Panel Display Panel Control BOX Remote Controller Option Water Tank Float Switches OptionOutlet Valves Option U8AA5540012 A1 Cell Lifecycle Adjustment ProcedureLighting A3 Voltage A2 AmperageA5 Amperage Accumulation Time A4 Cell Reverse TimeA6 Storage Mode/Hand-washing Mode A8 Initial Flush Cycle Time A7 Cell Running/Reverse Time ResetA9 Automatic Dispensing Control Checking Procedure Functions and Adjustment of Check ItemsLighting Flashing C2 Input Conditions C1 Output ConditionsSet Check Operation Flow ChartIV. Technical Information Water Circuit Wiring Diagram Performance Data PH and Amperage Service Information MAINTENANCE/INSPECTION Cell Replace Lamp No Acid Water pH, Alkaline Water pH NoAvailable Chlorine Concentration Acid No Thiosulfuric Acid TitrationCartridge Filter No Service DiagnosisU8AA5540012 U8AA5540012 MINAMIYAKATA, SAKAE, TOYOAKE, Aichi 470-1194 Japan