Hitachi RAC-10G5, Service Manual, Page: 12 / 62

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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.
Make sure to connect earth line.
Indicates the instructions that must be followed.
The sign in the fi gure indicates prohibition.
PRECAUTIONS DURING SHIFTING OR MAINTENANCE
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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 fi re may occur if you continue to operate
the unit under abnormal situation.
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Please contact your agent for maintenance. Improper self maintenance may cause electric
shock and fi re.
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Please contact your agent if you need to remove and reinstall the unit. Electric shock or fi re
may occur if you remove and reinstall the unit yourself improperly.
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If the supply cord is damaged, it must be replaced by the special cord obtainable at authorized
service/parts centers.
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PRECAUTIONS DURING OPERATION
● Avoid an extended period of direct air fl ow for your health.
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● Do not insert a fi nger, 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.
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During thunder storm, disconnect and turn off the circuit breaker.
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Do not use any conductor as fuse wire, this could cause fatal accident.
WARNING
PRECAUTIONS DURING INSTALLATION
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Do not reconstruct the unit.
Water leakage, fault, short circuit or fi re may occur if you reconstruct the unit by yourself.
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Please ask your sales agent or qualifi ed technician for the installation of your unit. Water
leakage, short circuit or fi re may occur if you install the unit by yourself.
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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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Be sure to use the specifi ed piping set for R410A. Otherwise, this may result
in broken copper pipes or faults.
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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.
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Do not install near location where there is fl ammable gas. The outdoor unit may catch
fi re if fl ammable gas leaks around it.
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Please ensure smooth fl ow of water when installing the drain hose.
CAUTION
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