Safety Precautions - Mitsubishi Electric GK-2509YS2-CE Handbook

1. Safety precautions

Read the following precautions thoroughly before the maintenance, and then inspect and repair the product in a
safe manner.
The types and levels of danger that may arise if the product is handled incorrectly are described with the warning
symbols shown below.
Electric shock
If you must inspect the circuitry while the power is
on, do not touch the live parts.
(Failure to observe this warning may
result in electric shock.)
Modification is prohibited
Do not modify the unit.
(Failure to observe this warning may
result in electric shock, fire and/or injury.)
Proper electric work
Use the electric wires designated for electric work,
and conduct electric work in accordance with your
local electric work regulations and the installation
manual.
(Improper connection or wiring installation
may result in electric shock and/or fire.)
Caution for injury
Do not work at a location where you do not have a
sure footing.
(Failure to observe this caution may result
in a fall.)
Notes for servicing
● Inspect the grounding, and repair it if it is incomplete. Make sure that an earth leakage breaker is installed, if it
is not installed, install one.
Make sure that the product operates properly upon completion of repair. Clean the product and the surrounding
area, and then notify the customer of the completion of repair.
Warning
Be sure to follow
Improper handling of the product may result in injury or
Caution
damage to properties including buildings and equipment.
Improper handling of the product may
result in serious injury or death.
Turn off the power supply
Be sure to shut off the circuit breaker before
disassembling the unit for repair.
(Failure to observe this warning may
result in electric shock.)
Caution against
electric shock
Use proper parts and tools
For repair, be sure to use the parts listed in the parts
catalog of the applicable model and use the proper
tools.
(Failure to observe this warning may
Prohibited
result in electric shock, fire and/or injury.)
Replace damaged and/or degraded parts
Be sure to replace the power cord and lead wires if
they are damaged and/or degraded.
(Failure to observe this warning may
result in electric shock and/or fire.)
Check insulation
this instruction.
Upon completing repair work, always measure the insula-
tion resistance. Verify that it is at least 10 MΩ (with a 500
V DC insulation resistance tester), and then turn on the
power.
(Inadequate insulation may result in
electric shock.)
Wear gloves
Wear a pair of gloves when servicing.
(Failure to observe this caution may
result in injury.)
Prohibited
─ 3 ─
Be sure to follow
this instruction.
Be sure to follow
this instruction.
Be sure to follow
this instruction.
Be sure to follow
this instruction.
Be sure to follow
this instruction.