Hitachi RAC-25YH4, Service Manual, Page: 9 / 121

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WARNING
PRECAUTIONS DURING OPERATION
• Do not use any conductor as fuse wire, this could cause fatal accident.
PROHIBITION
• During thunder storm, disconnect the plug top or turn off the circuit breaker.
• Spray cans and other combustibles should not be located within a meter of the air
outlets of both indoor and outdoor units.
As a spray can’s internal pressure can be increased by hot air, a rupture may result.
“OFF”
CAUTION
PROHIBITION
• The product shall be operated under the manufacturer specification and not for
any other intended use.
PROHIBITION
DON’T WET
• Do not attempt to operate the unit with wet hands, this could cause fatal accident.
STRICTLY OBSERVE
PRECAUTIONS
PROHIBITION
PROHIBITION
PROHIBITION
PROHIBITION
PROHIBITION
• When operating the unit with burning equipments, regularly ventilate
the room to avoid oxygen insufficiency.
• Do not direct the cool air coming out from the air-conditioner panel to
face household heating apparatus as this may affect the working of
apparatus such as the electric kettle, oven etc.
• Do not wash the unit with water or place a water container such as a
vase on the indoor unit.
Electrical leakage could be present and cause electric shock.
• Please ensure that outdoor mounting frame is always stable, firm and
without defect. If not, the outdoor unit may collapse and cause danger.
• Do not place plants or animals directly under the air flow as it is bad for the plants or
animals.
• Do not climb on the outdoor unit or put objects on it.
PROHIBITION
PROHIBITION
PROHIBITION
DON’T TOUCH
DON’T TOUCH
• When operating the unit with the door and windows opened, (the room humidity
is always above 80%) and with the air deflector facing down or moving automati-
cally for a long period of time, water will condense on the air deflector and drips
down occasionally. This will wet your furniture. Therefore, do not operate under
such condition for a long time.
• If the amount of heat in the room is above the cooling or heating capability of the
unit (for example: more people entering the room, using heating equipments and
etc.), the preset room temperature cannot be achieved.
• Indoor unit cleaning must be performed by authorized personnel only. Consult
your sales agent.
Using a commercially available detergent or similar can damage the plastic parts
or clog the drain pipe, causing water to drip with potential electric shock hazard.
• Do not touch the air outlet, bottom surface and aluminum fin of the outdoor
unit.
You may get hurt.
• Do not touch the refrigerant pipe and connecting valve.
Burns may result.
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