LG ARNU Series, Service Manual

Page: 9 / 226

Service Manual 9
Safety Precautions
Safely dispose of the packing materials.
• Packing materials, such as mails and other metal or
wooden parts, may cause stabs or other injuries.
• Tear apart and throw away plastic packaging bags so
that children will not play with them. If
children play with a plastic bag which
was not torn apart, they face the risk
of suffocation.
Turn on the power at least 2 hours before starting
operation.(In case of outdoor
temperature 5°C below)
• Starting operation immediately after turning on the
main power switch can result in severe
damage to internal parts. Keep the power switch
turned on during the operational season.
Do not touch any of the refrigerant piping during
and after operation.
• It can cause a burn or frostbite.
Do not operate the air conditioner with the panels
and guards removed.
• Rotating, hot, or high-voltage parts can cause injuries.
Do not directly turn off the main power switch after
stopping operation.
• Wait at least more than 5 minutes before turning off the
main power switch. Otherwise it may result in water
leakage or other problems.
Auto-addressing should be done in condition of
connecting the power of all indoor and outdoour
units. Auto-addressing should also be done in
case of changing the Indoor Unit board(PCB).
Use a firm stool or ladder when cleaning or main-
taining the air conditioner.
• Be careful and avoid personal injury.
Do not insert hands or other objects through the
air inlet or outlet while the air conditioner is
plugged in.
• There are sharp and moving parts that could cause
personal injury.