Toshiba HWS-2101CSHM3-E(-UK) Safety Precautions, Danger, About indication, About symbols

1 SAFETY PRECAUTIONS

The unit and this service guide list very important safety precautions.

Understand the following details (indications and symbols) before reading the body text, and follow the instructions.

[About indication]

Indication	Meaning of Indication
DANGER	Indicates that a wrong operation may cause a service engineer and the third persons
	around to get fatal or serious injuries.
WARNING	Indicates that a wrong operation may cause a service engineer and the third persons
	around to get fatal or serious injuries, or that unit defective after the operation may cause
	a user to have a similar serious accident.
CAUTION	Indicates that a wrong operation may cause a service engineer and the third persons
	around to get injuries or may cause property damage*, or that unit defective after the
	operation may cause a user to have a similar accident.

* Property damage indicates extended damage to property, furniture, livestock, or pets.

[About symbols]

Symbols Meaning of Symbols

Indicates a forbidden action.

Specific forbidden actions are described in text near the symbol.

Indicates a forcible (must do) action.

Specific forcible actions are described in text near the symbol.

Indicates a caution (including danger and warning).

Specific cautions are described in picture or text inside or near the symbol.

DANGER

<Turn off the power breaker>

Turn off the power breaker before removing the front panel and cabinet.

•Failure to do so may cause a high voltage electric shock, leading to death or injury.

•During an operation, the second side circuit of high pressure transmission(*) are applied with a high voltage of 230V or higher.

•Touching the circuit even with an electrical insulator, let alone a bare hand or body, causes an electric shock.

∗: For details, see the schematic.

<Discharge between terminals>

When the front panel and cabinet are removed, make short-circuit current to discharge between high pressure capacitor terminals.

•Failure to do so may cause a high voltage electric shock, leading to death or injury.

•After the power is turned off, the high pressure capacitor is still charged with high voltage.

<Forbidden>

Do not turn on the power breaker after removing the front panel cabinet.

• Failure to do so may cause a high voltage electric shock, leading to death or injury.

WARNING

<Check earth ground>

Before starting failure diagnosis or repair, check that the ground wire (∗) is connected to the unit ground terminal.

•An unconnected ground wire could cause an electric shock if electric leakage occurs.

•If the earth ground is not properly connected, ask an electrical worker for rework of the ground connection.

∗: Ground wire of class D grounding

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