Safety Precautions - Mitsubishi Electric LGH-F300RX3-E Handbook

Safety precautions

GPlease be sure to read the following safety precautions thoroughly before commencing with the maintenance
work, and conduct the inspection and repair of the product in a safe manner.
GThe types and levels of danger that may arise if the product is handled incorrectly are described by using the
warning symbols shown below.
Warning
♦ ♦
Electric shock
If you must inspect the circuitry while the
power is on, do not touch the live parts.
(Failure to heed this warning may result in elec-
tric shock.)
♦ ♦
Modification is prohibited
Do not modify the unit.
(Failure to heed this warning may result in elec-
tric shock, fire and/or bodily injury.)
♦ ♦
Proper electric work
Use the electric wires designated for electric work, and
conduct electric work in accordance with the "Electric
Installation Engineering Standard," the "Indoor Wiring
Regulations," and the Installation Work
Guide.
(Incomplete connection or wiring installation may
result in electric shock and/or fire.)
♦ ♦
Caution for bodily injury
Do not conduct any work at a location
where you do not have a sure footing.
(Failure to heed this caution may result in a fall.)
Request during repair
•Inspect the grounding, and repair it if incomplete.
GMake sure that the product operates correctly upon completion of repair. Clean the product as well as the sur-
rounding area, and then notify the customer of the completion of repair.
Incorrect handling of the product may result in serious injury
or death.
Incorrect handling of the product may result in serious injury
Caution
or damage to properties including buildings and equipment.
♦ ♦
Turn off the power supply
Be sure to shut off the breaker before dis-
assembling the unit for repair.
(Failure to heed this warning may result in elec-
Caution for
tric shock.)
electric shock
♦ ♦
Use proper parts and tools
For repair, be sure to use the parts listed in the service
parts list of the applicable unit model and
use the proper tools.
(Failure to heed this warning may result in elec-
tric shock, fire and/or bodily injury.)
Prohibited
♦ ♦
Replace damaged and/or degraded parts
Be sure to replace the power-supply cord and lead wire
in the event that they are damaged and/or
degraded.
(Failure to heed this warning may result in elec-
tric shock and/or fire.)
♦ ♦
Check insulation
Be sure to follow
Be sure to measure the insulation resistance once the
this instruction.
repair work is complete, and turn on the power supply
after verifying that an insulation resistance
of at least 10MΩ is obtained.
(If an insulation problem exists, it may result in
electric shock.)
♦ ♦
Wear gloves
Wear gloves when conducting work.
(Failure to heed this caution may result in injury
to your hands from sharp metal or other edges.)
Prohibited
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