Hitachi RAK-18NH6, Service Manual

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SAFETY PRECAUTION
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Please read the “Safety Precaution” carefully before operating the unit to ensure correct usage of the unit.
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Pay special attention to signs of “ Warning ” and “ Caution ”. The “Warning” section contains matters which,
if not observed strictly, may cause death or serious injury. The “Caution” section contains matters which may
result in serious consequences if not observed properly. Please observe all instructions strictly to ensure safety.
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The sign indicate the following meanings.
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Please keep this manual after reading.
WARNING
PRECAUTIONS DURING INSTALLATION
● Do not reconstruct the unit.
Water leakage, fault, short circuit or fire may occur if you reconstruct the
unit by yourself.
● Please ask your sales agent or qualified technician for the installation of
your unit. Water leakage, short circuit or fire may occur if you install the unit
by yourself.
● Please use earth line.
Do not place the earth line near water or gas pipes, lightning-conductor, or
the earth line of telephone. Improper installation of earth line may cause
electric shock.
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A circuit breaker should be installed depending on the mounting site of the
unit. Without a circuit breaker, the danger of electric shock exists.
● Do not install near location where there is flammable gas. The outdoor unit
may catch fire if flammable gas leaks around it.
● Please ensure smooth flow of water when installing the drain hose.
CAUTION
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PRECAUTIONS DURING SHIFTING OR MAINTENANCE
PRECAUTIONS DURING OPERATION
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Avoid an extended period of direct air flow for your health.
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Should abnormal situation arises (like burning smell), please stop operating the unit
and turn off the circuit breaker. Contact your agent. Fault, short circuit or fire may
occur if you continue to operate the unit under abnormal situation.
● Please contact your agent for maintenance. Improper self maintenance may cause
electric shock and fire.
● Please contact your agent if you need to remove and reinstall the unit. Electric
shock or fire may occur if you remove and reinstall the unit yourself improperly.
● Do not insert a finger, a rod or other objects into the air outlet or inlet. As the
fan is rotating at a high speed, it will cause injury. Before cleaning, be sure
to stop the operation and turn the breaker OFF.
● During thunder storm, disconnect and turn off the circuit breaker.
● Do not use any conductor as fuse wire, this could cause fatal accident.
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Make sure to connect earth line.
Indicates the instructions that must be followed.
The sign in the figure indicates prohibition.
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